-------

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                                 DISCLAIMER
     The information in this document has been funded wholly or in part by
the U.S. Environmental  Protection Agency (EPA) under Contract No.
68-03-3413, Work Assignment No.  2-52, to PEI  Associates,  Inc.  It  has been
subjected to the Agency's peer and administrative review, and it has been
approved for publication as an EPA document.   Mention of trade names or
commercial products does not constitute endorsement or recommendation for
use.

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                                  FOREWORD
     Today's rapidly developing and changing technologies and industrial
products and practices frequently carry with them the increased generation
of materials that, if improperly dealt with, can threaten both public health
and the environment.  The U.S. Environmental Protection Agency (EPA) is
charged by Congress with protecting the Nation's land,  air, and water
resources.  Under a mandate of national environmental laws, the Agency
strives to formulate and implement actions leading to a compatible balance
between human activities and the ability of natural systems to support and
nurture life.  These laws direct the EPA to perform research to define our
environmental problems, measure the impacts, and search for solutions.

     The Risk Reduction Engineering Laboratory is responsible for planning,
implementing, and managing research, development, and demonstration programs
to provide an authoritative, defensible engineering basis in support of the
policies, programs, and regulations of EPA with respect to drinking water,
wastewater, pesticides, toxic substances, solid and hazardous wastes, and
Superfund related activities.  This publication is one of the products of
that research and provides a vital communication link between the researcher
and the user community.

     The purpose of this Inventory is to present information on the
availability of various treatability study types, the media and contaminants
that could be investigated by each treatability study type, and for specific
technologies, the demonstrated experience of responding firms at Superfund
sites.  The intended audience for this Inventory comprises Remedial Project
Managers, responsible parties, contractors, and technology vendors.
                                             E. Timothy Oppelt
                                                  Director
                                    Risk Reduction Engineering Laboratory

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                                  ABSTRACT
The Comprehensive Environmental  Response, Compensation and Liability Act
(CERCLA) amendments mandate the use of permanent solutions to the maximum
extent practicable when remediating Superfund sites.  Fundamental to
achieving this goal is the use of treatment technologies that reduce the
intrinsic threats posed by hazardous wastes.  Treatability studies are an
important component of the remedy evaluation and selection process; these
studies provide valuable site specific data necessary to aid in the
selection and implementation of the remedy.  Therefore EPA has initiated a
treatability study program to facilitate the performance of and improve the
quality of treatability studies.

This document was developed to facilitate the performance of treatability
studies by ensuring that requests for proposals (RFPs) for treatability
studies are made available to the broadest subset of contractors who can
perform such studies.  This listing is not a pre-qualification of
contractors and all RFPs must be done in accordance with the Federal
Acquistions Regulations.

The information contained in this inventory has been organized into two
volumes.  Volume I provides listings of treatability study vendors organized
by technology and contaminant groups.  Volume II contains an alphabetical
listing, by vendor name, of all of the information provided by the
responding firms.

The intended users of the document are Superfund remedial project managers
and contractors who are involved in a procurement process to obtain a
treatability study.

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                                  CONTENTS


Volume I                                                            Pages

Disclaimer	         ii

Foreword	        iii

Abstract	         iv

Introduction 	      1-5

Table 1 - Summary List of Technology Process Options 	    1-1 - 2

Table 2 - Listings of Vendor Information Organized
           Alphabetically by Treatment Technologies  	 II-l - 178

Table 3 - Summary List of Contaminant Groups	      III-l

Table 4 - Listings of Vendor Information Organized by
           Contaminant Groups	IV-1 - 96

Table 5 - Alphabetical List of Vendors with Address,
           Telephone Number, and the Name of a Person
           to Contact	    V-l - 3

Volume II


Disclaimer	         ii

Foreword	        iii

Abstract	         iv

Introduction 	      1-5

Table 6 - Treatability Study Vendor Information by
           Company Name	VI-1 - 905

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                                INTRODUCTION
     The U.S. Environmental  Protection Agency's Risk Reduction Engineering
Laboratory of the Office of Research and Development,  working on behalf of
the Office of Emergency and Remedial Response,  has undertaken a study to
identify and publish sources of treatability study vendors.  This effort is
in support of the Superfund remedy selection and remediation process.  On
August 31, 1989, the U.S. Environmental Protection Agency published a notice
in the Commerce Business Daily (CBD) inviting interested parties to submit
information on capabilities to conduct treatability studies.  The responses
received on or about September 25, 1989, have been assembled in a dBase 3+
formatted data base and are presented herein.

     The intended purpose of this document is to provide information about
vendors that have capabilities for conducting treatability studies for
Superfund wastes or hazardous substances.  Once a specific treatment
option(s) has been identified as having potential for use at a Superfund
site, and a determination has been made that a treatability study is needed,
a Request for Proposal (RFP) announcement should be mailed directly to all
vendors that responded to the CBD notice and indicated capabilities for the
specified treatment technology.  The direct mailing is to be conducted in
conjunction with the current RFP notification process to acquire
treatability services.  The inclusion of vendors' names in this Inventory
does not constitute or imply prequalification of these vendors.

     The data provided in this Inventory pertains to various treatability
study types, the media and contaminants that could be investigated by each
treatability study type, and for specific technologies, responding firms'
demonstrated experience at Superfund sites.  This information is organized
in two volumes.  Volume I contains the following tables:

     Table 1 - Summary List of Technology Process Options
     Table 2 - Listings of Vendor Information Organized Alphabetically
               by Treatment Technologies
     Table 3 - Summary List of Contaminant Groups
     Table 4 - Listings of Vendor Information Organized by Contaminant
               Groups
     Table 5 - Alphabetical List of Vendors with Address, Telephone Number
               and the Name of a Person to Contact

Volume II of this report contains an alphabetical listing, by vendor's name,
of all of the information provided by  responding firms.

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     The information contained in the responses to the August 31, 1989,
notice has not been verified,  and the inclusion of statements on the
capabilities of specific firms in this document (Volumes I and II) does  not
constitute an endorsement by the U.S. Environmental  Protection Agency or by
PEI Associates, Inc.,  to conduct treatability studies.  The purpose of this
report is merely to identify and publish a list of firms interested in
conducting treatability studies rather than to qualify these firms.  EPA
intends to update this list periodically.   For further information, please
contact:

          Ms. Joan Col son
          U.S. Environmental Protection Agency
          Office of Research and Development
          Risk Reduction Engineering Laboratory
          Superfund Technology Demonstration Division
          26 W. Martin Luther King Dr.
          Cincinnati,  OH   45268

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          AUGUST 31, 1989, COMMERCE BUSINESS DAILY NOTICE
     The U.S. Environmental Protection Agency Office of Research and
Development, working with the Office of Emergency Remedial Response, is
seeking to identify potential sources which possess the qualifications to
perform specific types of treatability studies at Superfund sites.  A
listing of potential sources will be made available to Regions and to EPA
contractors as a core source list which may be used for any future
solicitations to acquire treatability study services.  THIS NOTICE IS NOT AN
ANNOUNCEMENT OF A SOLICITATION OPPORTUNITY.  IT IS A REQUEST FOR INFORMATION
REGARDING CAPABILITIES OF FIRMS WHICH MAY BE INTERESTED IN FUTURE EPA NEEDS
FOR TREATABILITY STUDY SERVICES.  This announcement will not result in
prequalification of offerers.

BACKGROUND INFORMATION:  The USEPA has a need, from time to time, to acquire
treatability study services from qualified offerers in support of the
Superfund remedy selection and implementation process.  Such offerers may be
needed on an expedited basis for subcontracting opportunities under existing
contracts.  They may also be needed for prime contracting opportunities.
The Agency is seeking to develop a data base of potential offerers which
possess qualifications for such services and which wish to receive
solicitations and/or subcontracting requests as they arise.  Potential
offerers which submit information in response to this synopsis are not
assured of automatically receiving all future solicitation/subcontract
requests; however, the information they submit regarding qualifications will
be made available to those Regions/EPA Contractors which anticipate the need
for treatability study services.  Any future EPA acquisition opportunities
for treatability study services will be synopsized individually as they
arise unless one or more of the conditions set forth in the Federal
Acquisition Regulation (FAR) 5.202 exist.

REQUESTED INFORMATION:  At this time, in accordance with FAR 5.205(a),
interested parties are invited to submit information which will permit
preliminary evaluation of their capabilities.  The following types of
information are requested:
     Company Name
     Address
     Telephone Number
     Contact Name
     .Company Type:  U.S. Private Enterprise
                    Large/Small Business
                    Academic Institution
                    Nonprofit Entity
                    Federal, State, or Local Government Agency
                    Foreign Government
                    Foreign Firm
                    (Other)

USEPA  is  interested in learning what types of treatability studies can be
performed by treatment technology type.  The following  information is
requested by each of the treatment technology types  listed:

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FOR TREATMENT OF LIQUIDS:
     Thermal  combustion
     Wet air  oxidation
     Activated sludge
     Other aerobic biological  treatment
     Anaerobic biological  treatment
     Chemical oxidation
     Precipitation
     Reduction
     Chlorination
     Ion exchange
     Neutralization
                                             Ozonation
                                             Activated carbon
                                             Catalysis
                                             Crystallization
                                             Electrodialysis
                                             Liquid-liquid extraction
                                             Reverse osmosis
                                             Solvent recovery
                                             Stripping
                                             Adsorption
                                             Other (specify)
                                             Stabilization/solidification
                                             In situ vitrification
                                             Biodegradation
                                                  composting
                                                  slurry-phase treatment
                                                  solid-phase treatment
FOR TREATMENT OF SOLIDS/SLUDGES:
     Incineration
     Wet air oxidation and vitrification
     Chemical extraction
     Chemical treatment
     Soil washing
     In situ soil flushing
     Low temperature thermal  stripping
     In situ vacuum and steam extraction
     In situ biodegradation
     Other (specify)

USEPA is interested in obtaining  information on the capabilities of firms
having Superfund site-specific and non-Superfund treatability study
experience.  The following information, by treatment technology, is
requested:

EXPERIENCE:    Superfund site name
               Location
               Beginning and end  dates of services performed
               Media and contaminants treated

FACILITIES UTILIZED AND SERVICES  PERFORMED AT SUPERFUND SITES:  Include such
information as bench/pilot scale  units; unit capacity; whether unit(s) were
mobile or fixed; unit capacities  and their location.

FACILITIES AND SERVICES AVAILABLE: Bench/pilot scale units
                                   Unit capacity
                                   Whether unit(s) a.re mobile or fixed
                                   Fixed unit capacities and location
                                   Any other relevant information

MEDIA AND CONTAMINANT CAPABILITY:  Identify the media and contaminant groups
for which your facility/staff has the capability to conduct treatability
studies.
     Media include:
     Aqueous media
     Organic liquors
     Soils
                                   Contaminant groups include:
                                   Halogenated volatiles
                                   Halogenated nonvolatiles
                                   Nonhalogenated volatiles

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     Media include--contd.:         Contaminant  groups  include—contd.:
     Sludges                       Nonhalogenated  nonvolatiles
     Sediments                     PCBs
     Other solids                  Pesticides
     Other (specify)                Dioxins/furans
                                   Organic cyanides
                                   Organic corrosives
                                   Volatile metals
                                   Nonvolatile  metals
                                   Asbestos
                                   Radioactive  materials
                                   Inorganic corrosives
                                   Inorganic cyanides
                                   Oxidizers
                                   Reducers
                                   Other (specify)

Include any relevant experience not previously  discussed.

PERMITTING STATUS:  Designate those permits that you possessed for fixed
base units used at Superfund sites.  Indicate  current  status and limitations
of permits you possess.

PERFORMANCE CAPACITY:  Provide information on  the number of specific types
of treatability studies  per month your facility/staff  is capable of
conducting.

Submit any price list that may be available to  the general  public.

SUBMISSION OF INFORMATION:  Interested parties  are requested to  submit the
types of information requested in this notice to the following address:

               James S.  Poles
               PEI Associates, Inc.
               Attn: Treatability Study Sources Sought
               1233 20th St., NW
               Suite 401
               Washington, DC  20036

SUBMISSION DEADLINE:  Submit all information by 25 September 1989.

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                    TABLE # 1:  SUMMARY LIST OF TECHNOLOGY PROCESS OPTIONS
BIOLOGICAL
ACTIVATED SLUDGE
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
BIODEGRADATION-COMPOST ING
BIOOEGRADATION-NOS
BIODEGRADATION-SLURRY PHASE
BIOOEGRADATION-SOLID PHASE
IN SITU BIODEGRADATION
ROTATING BIOLOGICAL CONTACTORS
IMMOBILIZATION
FIXATION
SOLIDIFICATION
STABILIZATION
STABILIZATION/SOLIDIFICATION
 IN SITU TECHNOLOGIES
 <>IN SITU BI ODEGRADATION, SEE BIOLOGICAL
 IN SITU RADIO  FREQUENCY  HEATING
 IN SITU SOIL FLUSHING
 IN SITU VACUUM & STEAM EXTRACT
 IN SITU VITRIFICATION
 PHYSICAL/CHEMICAL
 ACTIVATED  CARBON
 <>  ACTIVATED  SLUDGE,  SEE  BIOLOGICAL
 ADSORPTION
 CATALYSIS
 CENTRIFUGATION
 CHEMICAL DECHLORINATION
 CHEMICAL EXTRACTION
 CHEMICAL OXIDATION
 CHEMICAL PRECIPITATION
 CHEMICAL REDUCTION
 CHEMICAL TREATMENT
 CH LOR I NAT I ON
 COAGULATION/FLOCCULATION
 CRYSTALLIZATION
 DEWATERING
 DISSOLVED  AIR FLOTATION
 ELECTROCHEMICAL SEPARATION
 ELECTROCOAGULATION
 ELECTROOIALYSIS
 ELECTROLYSIS
 EMULSION REMOVAL
 EVAPORATION
 FILTRATION
 FLOTATION
 FLOTATION  THICKENING
                                               1-1

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                                              TABLE # 1 (CONTINUED)
PHYSICAL/CHEMICAL
(continued)
FLUID-BED STRIPPING
FREEZE CONCENTRATION
FREEZE CRYSTALLIZATION
GRAVITY THICKENING
<> IN SITU RADIO FREQUENCY HEATING, SEE IN SITU TECHNOLOGIES
<> IN SITU SOIL FLUSHING, SEE IN SITU TECHNOLOGIES
<> IN SITU VACUUM & STEAM STRIPPING AND EXTRACTION, SEE IN SITU TECHNOLOGIES
ION EXCHANGE
LIQUID-LIQUID EXTRACTION
LIQUID-SOLID SEPARATION
LOW ENERGY EXTRACTION PROCESS
LOU TEMP THERMAL EXTRACTION
LOU TEMP THERMAL STRIPPING
MIXED MEDIA FILTRATION
MOLECULAR BEAM MASS SPEC
NEUTRALIZATION
OIL-UATER SEPARATION
OZONATION
PACT
PERVAPORATION
PHYSICAL SEPARATION
PHYSICAL TREATMENTS
REVERSE OSMOSIS
SEDIMENTATION
SOIL UASHING
SOLVENT RECOVERY
SPRAY DRYING
STRIPPING
ULTRAFILTRATION
UV/DEEP TREATMENT
UV/HYDROGEN PEROXIDE
UV/OXIDATION
UV/OZONATION
UV/PEROXIDATION
UV/PHOTOLYSIS
VAPOR EXTRACTION
VAPOR SEPARATION
UASHING
 THERMAL
 ELECTROCHEMICAL  INCINERATION
 INCINERATION
 PYROLYSIS
 THERMAL  COMBUSTION
 THERMAL  DECOMPOSITION
 THERMAL  DESORPTION
 THERMAL  DESTRUCTION
 THERMAL  FIXATION
 THERMAL  PROCESSING
 THERMAL  TREATMENT-NOS
 VITRIFICATION
 UET AIR  OXIDATION

                                               1-2

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                                        TABLE # 2:  TREATABILITY STUDY  VENDORS  BY  TREATMENT  TECHNOLOGY
   TREATMENT TECHNOLOGY
                                        COMPANY NAME
                                                                        MEDIA  TREATED
                                                                                           CONTAMINANT GROUPS
                                                                                                                             BENCH
                                                                                                                             SCALE
                                                                PILOT
                                                                SCALE
  BIOLOGICAL
  ACTIVATED SLUDGE
                                  CAA B10REMEDIATION SYSTEMS
                                                                       AQUEOUS MEDIA
                                                                       ORGANIC LIQUID
                 HALOGENATED NONVOLATILES
                 HALOGENATED VOLATILES
                 NONHALOGENATED NONVOLATILES
                 NONHALOGENATED VOLATILES
                 PCBs
                 PESTICIDES
                                                                                                                             YES
                                                                                                                                       NO
                                  CHEMENCO,  INC.
AQUEOUS MEDIA
ORGANIC LIQUID
                                                                                        NOT SPECIFIED
                                                                                                                             INP       INP
                                  D D ENVIRONMENTAL
                                                                       AQUEOUS MEDIA
                                                                       ORGANIC LIQUID
                 HALOGENATED NONVOLATILES
                 HALOGENATED VOLATILES
                 NONHALOGENATED NONVOLATILES
                 NONHALOGENATED VOLATILES
                 NONVOLATILE METALS
                                                                                                                             YES       YES
                                  DETOX,  INC.
AQUEOUS MEDIA
ORGANIC LIQUID
SEDIMENTS
SLUDGES
SOILS
HALOGENATED VOLATILES
HALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
PESTICIDES
DIOXINS/FURANS
ORGANIC CYANIDES
ORGANIC CORROSIVES
VOLATILE METALS
NONVOLATILE METALS
                                                                                                                             YES       YES
                                 DIVERSIFIED ENGINEERING, INC.
AQUEOUS MEDIA
ORGANIC LIQUID
SLUDGES
HALOGENATED NONVOLATILES
NONVOLATILE METALS
                                                      INP       INP
                                 E M & C ENGINEERING ASSOCIATES
INP =  Information Not  Provided
                                                                       AQUEOUS MEDIA
                                                                  II-  1
                                                                                        DIOXINS/FURANS
                                                                                                                             INP       INP

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TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                   MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                           BENCH     PILOT
                                                                                                                           SCALE     SCALE
ACTIVATED SLUDGE
(continued)
E M & C ENGINEERING ASSOCIATES
(continued)
ORGANIC LIQUID
                 HALOGENATED NONVOLATILES
                 HAOLGENATED VOLATILES
                 INORGANIC CORROSIVES
                 INORGANIC CYANIDES
                 NONVOLATILE METALS
                 ORGANIC CYANIDES
                 OXIDIZERS
                 PCBs
                 PESTICIDES
                 REDUCERS
                 VOLATILE METALS
                               EARTH TECHNOLOGY CORP.
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                                      NOT SPECIFIED
                                                                                                                           YES       NO
                               ENSOTECH, INC.
                                     ORGANIC LIQUID
                                     AQUEOUS MEDIA
                 HALOGENATED NONVOLATILES
                 HALOGENATED VOLATILES
                 INORGANIC CORROSIVES
                 INORGANIC CYANIDES
                 NONHALOGENATED  NONVOLATILES
                 NONHALOGENATED  VOLATILES
                 NONVOLATILE METALS
                 OXIDIZERS
                 REDUCERS
                                                                                                                           YES       YES
                               ENSR -  CELGENE
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                                      NOT  SPECIFIED
                                                                                                                           YES       YES
                               ENVIRONMENTAL REMEDIATION. INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
                 HALOGENATED  VOLATILES
                 NONHALOGENATED  VOLATILES
                 PCBs
                 PESTICIDES
                                                                                                                           YES       NO
                               ENVIRONMENTAL RESOURCE ASSOCIATES
                                                                     AQUEOUS  MEDIA
                                                                II-   2
                                                                                      HALOGENATED  NONVOLATILES
                                                                                      HALOGENATED  VOLATILES
                                                                                      INORGANIC  CORROSIVES
                                                                                                                           YES       NO

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TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH     PILOT
                                                                                                                            SCALE     SCALE
ACTIVATED SLUDGE
(continued)
ENVIRONMENTAL RESOURCE ASSOCIATES
(continued)
                                                                                       NONHALOGENATED NONVOLATILES
                                                                                       NONHALOGENATED VOLATILES
                                                                                       NONVOLATILE METALS
                                ENVIRONMENTAL TECHNOLOGY  SOUTHEAST
                                                                      AQUEOUS MEDIA
                                                                                       HALOGENATED  NONVOLATILES
                                                                                       HALOGENATED  VOLATILES
                                                                                       NONHALOGENATED  NONVOLATILES
                                                                                       NONHALOGENATED  VOLATILES
                                                                                       NONVOLATILE  METALS
                                                                                                                            INP       INP
                                ENURIGHT ENVIRONMENTAL,  INC.
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                                                       RADIOACTIVE  MATERIALS
                                                                                                                            YES       YES
                                GENERAL  PHYSICS CORPORATION
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUID
                                                       HALOGENATED  NONVOLATILES
                                                       HALOGENATED  VOLATILES
                                                       NONHALOGENATED NONVOLATILES
                                                       NONHALOGENATED VOLATILES
                                                       NONVOLATILE  METALS
                                                       ORGANIC  CORROSIVES
                                                       ORGANIC  CYANIDES
                                                       PCBs
                                                       PESTICIDES
                                                                                                                            YES       YES
                               GROUNDUATER & ENVIRONMENTAL SERVICE
                               HUNTER BIOSCIENCES, INC.
                                     AQUEOUS MEDIA
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS

                                     AQUEOUS MEDIA
                                                                                      NOT SPECIFIED
HALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
                                                                                                                            INP        INP
                                                                                            YES        INP
                               HUNTER SERVICES, INC.
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
                                                                II-  3
DIOXINS/FURANS
PCBs
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
YES       YES

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TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED
                                                                                          CONTAMINANT  GROUPS
                                                                                            BENCH
                                                                                            SCALE
                                               PILOT
                                               SCALE
ACTIVATED SLUDGE
(continued)
HUNTER SERVICES, INC.
(continued)
NONHALOGENATED VOLATILES
PESTICIDES
NONVOLATILE METALS
VOLATILE METALS
                                IIT  RESEARCH  INST
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                       DIOX1NS/FURANS
                                                       HALOGENATED NONVOLATILES
                                                       HALOGENATED VOLATILES
                                                       RADIOACTIVE MATERIALS
                                                       NONVOLATILE METALS
                                                       NONHALOGENATED NONVOLATILES
                                                       PCBs
                                                       PESTICIDES
                                                       VOLATILE METALS
                                                       ORGANIC CYANIDES
                                                       ORGANIC CORROSIVES
                                                       OXID1ZERS
                                                                                                                           YES
                                                                                                                                      IMP
                               JACOBS ENGINEERING GROUP,  INC.
                                     ORGANIC LIQUID
                                     SLUDGES
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
                                                                                                                           YES
                                                                                                                                      NO
                               MCNAMEE ADVANCED  TECHNOLOGY, INC.
                                     AQUEOUS MEDIA
                                     SLUDGES
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
OXIDIZERS
REDUCERS
VOLATILE METALS
                                                                                                                           YES
                                                                                                                                      YES
                               O'BRIEN AND GERE ENGINEERS, INC.
                                                                     AQUEOUS MEDIA
                                                                II-
                                                      HALOGENATED NONVOLATILES
                                                                                                                           YES
                                                                                                                                      YES

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TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH     PILOT
                                                                                                                            SCALE     SCALE
ACTIVATED SLUDGE
(continued)
O'BRIEN AND GERE ENGINEERS, INC.
(continued)
                                                                      ORGANIC LIQUID
                                                                                       HALOGENATED VOLATILES
                                                                                       NONHALOGENATED NONVOLATILES
                                                                                       NONHALOGENATED VOLATILES
                                                                                       REDUCERS
                                OHM CORPORATION
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUID
                                                                      SLUDGES
                                                                      OTHER  SOLIDS
                                                       DIOXINS/FURANS
                                                       HALOGENATED NONVOLATILES
                                                       HALOGENATED VOLATILES
                                                       NONHALOGENATED VOLATILES
                                                       NONVOLATILE METALS
                                                       NONHALOGENATED NONVOLATILES
                                                       PCBs
                                                       PESTICIDES
                                                       VOLATILE  METALS
                                                                                                                            YES
                                                                                                                                      YES
                                RADIAN  CORPORATION
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                     SLUDGES
                                                                     SOILS
                                                                     SEDIMENTS
                                                       NONHALOGENATED  VOLATILES
                                                       DIOXINS/FURANS
                                                       HALOGENATED  NONVOLATILES
                                                       HALOGENATED  VOLATILES
                                                       NONHALOGENATED  NONVOLATILES
                                                       ORGANIC  CORROSIVES
                                                       ORGANIC  CYANIDES
                                                       PCBs
                                                       PESTICIDES
                                                                                                                            YES        YES
                               RMT,  INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                                                                                      NOT SPECIFIED
                                                                                                                           YES        YES
                               RNK ENVIRONMENTAL,  INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                                                      NOT SPECIFIED
                                                                                                                           YES        NO
                               ROY F. WESTON,  INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                                                                II-  5
PESTICIDES
DIOXINS/FURANS
HALOGENATED VOLATILES
NONHALOGENATED VOLATILES
HALOGENATED NONVOLATILES
NONHALOGENATED NONVOLATILES
                                                                                            YES        YES

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TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED        CONTAMINANT  GROUPS
                                                                                                                           BENCH
                                                                                                                           SCALE
                                                                                                      PILOT
                                                                                                      SCALE
ACTIVATED SLUDGE
(continued)
ROY F.  UESTON,  INC.
(continued)

SYBRON  CHEMICALS,  INC.
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
PCBs

HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CYANIDES
                                                                                                                           YES
                                                                                                                                     YES
                               UNITED STATES TESTING COMPANY, INC.   NOT SPECIFIED    NOT SPECIFIED
                               VERSAR INC.
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                      DIOXINS/FURANS
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      INORGANIC CORROSIVES
                                                      INORGANIC CYANIDES
                                                      NONHALOGENATED NONVOLATILES
                                                      NONHALOGENATED VOLATILES
                                                      NONVOLATILE METALS
                                                      OXIOIZERS
                                                      REDUCERS
                                                      VOLATILE METALS
                                                                                            INP
                                                                                                                           YES
                                                                                                      INP
                                                                                                                                     YES
                               ZENON ENVIRONMENTAL
                               ZIHPRO PA 1-SAVANT
                                                                     SEDIMENTS
                                                                     SLUDGES
                                                                     SOILS
                                                                II-
                                                                    AQUEOUS  MEDIA
                                                                    6
                                                      DIOXINS/FURANS
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      INORGANIC CORROSIVES
                                                      INORGANIC CYANIDES
                                                      NONHALOGENATED NONVOLATILES
                                                      NONHALOGENATED VOLATILES
                                                      ORGANIC CORROSIVES
                                                      ORGANIC CYANIDES
                                                      PCBs
                                                      PESTICIDES

                                                      NOT SPECIFIED
                                                                                                                           YES
                                                                                                                                     YES
                                                                                                                           YES
                                                                                                                                     YES

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH     PILOT
                                                                                                                            SCALE     SCALE
ACTIVATED SLUDGE
(continued)
ZIMPRO PASSAVANT
(continued)
                                                                      ORGANIC LIQUID
                                                                      SLUDGES
AEROBIC BIOLOGICAL
                                AEA TECHNOLOGY
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUID
                                                                      SEDIMENTS
                                                                      SLUDGES
                                                                      SOILS
                                                                                       RADIOACTIVE MATERIALS
                                                                                                                            YES
                                                                                                                                      YES
                                B10SCIENCE MANAGEMENT, INC.
                                                                      ORGANIC LIQUID
                                                       DIOXINS/FURANS
                                                       HALOGENATED NONVOLATILES
                                                       HALOGENATED VOLATILES
                                                       INORGANIC CYANIDES
                                                       NONHALOGENATED  NONVOLATILES
                                                       NONHALOGENATED  VOLATILES
                                                       ORGANIC CORROSIVES
                                                       ORGANIC CYANIDES
                                                       PCBs
                                                                                                                            YES
                                                                                                                                      YES
                                CAA  BIOREMEDIATION  SYSTEMS
                                                                      AQUEOUS  MEDIA
                                                                      ORGANIC  LIQUID
                                                       HALOGENATED  NONVOLATILES
                                                       HALOGENATED  VOLATILES
                                                       NONHALOGENATED NONVOLATILES
                                                       NONHALOGENATED VOLATILES
                                                       PCBs
                                                       PESTICIDES
                                                                                                                            YES       NO
                               CHEMENCO,  INC.
                                     AQUEOUS MEDIA    NOT  SPECIFIED
                                     ORGANIC LIQUID
                                                                                                                            INP        INP
                               COMBUSTION ENGINEERING,  INC.
                                     AQUEOUS MEDIA    NOT SPECIFIED
                                     ORGANIC LIQUID
                                                                                                                            YES        YES
                               CYTO CULTURE ENVIRON.  BIOTECH.
                                                                     AQUEOUS MEDIA    NONHALOGENATED VOLATILES
                                                                     ORGANIC LIQUID   ORGANIC CYANIDES
                                                                                      PCBs
                                                                                      PESTICIDES
                                                                 II-  7
                                                                                           YES        YES

-------
TREATMENT TECHNOLOGY
                 TABLE # 2 (CONTINUED)

COMPANY NAME                    MEDIA TREATED        CONTAMINANT GROUPS
                                                                                                                           BENCH
                                                                                                                           SCALE
                                               PILOT
                                               SCALE
AEROBIC BIOLOGICAL
(continued)
                                D D ENVIRONMENTAL
                                AQUEOUS  MEDIA
                                ORGANIC  LIQUID
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
                                                                                                                           YES
                                                                                                                                     YES
                                E  M  & C  ENGINEERING ASSOCIATES
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                DIOXINS/FURANS
                                                HALOGENATED NONVOLATILES
                                                HALOGENATED VOLATILES
                                                INORGANIC CORROSIVES
                                                INORGANIC CYANIDES
                                                NONVOLATILE METALS
                                                ORGANIC CYANIDES
                                                OXIDIZERS
                                                PCBs
                                                PESTICIDES
                                                REDUCERS
                                                VOLATILE METALS
                                                                                      INP        INP
                               ENSR - CELGENE
                               AQUEOUS MEDIA
                               ORGANIC LIQUID
                                                                                      NOT SPECIFIED
                                                                                                                           YES       YES
                               ENVIRONMENTAL REMEDIATION, INC.
                               AQUEOUS MEDIA
                               ORGANIC LIQUID
                               SEDIMENTS
                               SLUDGES
                               SOILS
HALOGENATED VOLATILES
NONHALOGENATED VOLATILES
PCBs
PESTICIDES
                                                                                                                           YES       NO
                               ENVIRONMENTAL RESOURCE ASSOCIATES
                                                                     NOT SPECIFIED
                                                HALOGENATED NONVOLATILES
                                                HALOGENATED VOLATILES
                                                INORGANIC CORROSIVES
                                                HONHALOGENATED NONVOLATILES
                                                NONHALOGENATEO VOLAITLES
                                                NONVOLATILE METALS
                                                                                                                           YES       NO
                               ENVIRONMENTAL TECHNOLOGY SOUTHEAST    AQUEOUS MEDIA
                                                                II-  8
                                                HALOGENATED NONVOLATILES
                                                                                                                           INP       INP

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH     PILOT
                                                                                                                            SCALE     SCALE
AEROBIC BIOLOGICAL
(continued)
ENVIRONMENTAL TECHNOLOGY SOUTHEAST
(continued)
                                ENURIGHT ENVIRONMENTAL,  INC.
                                GENERAL  PHYSICS CORPORATION
                               HUNTER BIOSCIENCES,  INC.
                               INTERNATIONAL PROCESS RESEARCH CORP
                               IT CORPORATION

                               JACOBS ENGINEERING GROUP, INC.
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID

                                      SEDIMENTS
                                      SLUDGES
                                      SOILS
 HALOGENATED  VOLATILES
 NONHALOGENATED NONVOLATILES
 NONHALOGENATED VOLATILES
 NONVOLATILE  METALS

 RADIOACTIVE  MATERIALS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
ORGANIC CORROSIVES
ORGANIC CYANIDES
OXIDIZERS
REDUCERS

HALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES

HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
OXIDIZERS
REDUCERS
                                     AQUEOUS MEDIA    NONHALOGENATED NONVOLATILES

                                     AQUEOUS MEDIA    HALOGENATED VOLATILES
                                     ORGANIC LIQUID   HALOGENATED NONVOLATILES
                                                      NONHALOGENATED NONVOLATILES
                                      AQUEOUS  MEDIA
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                                            NO
                                                                                                      YES
                                                                                                                            YES       YES
                                                                                            YES       INP
                                                                                            YES       YES
                                     YES       NO

                                     YES       YES
                                                                II-  9

-------
TREATMENT TECHNOLOGY
                       TABLE # 2  (CONTINUED)

      COMPANY  NAME                   MEDIA TREATED       CONTAMINANT  GROUPS
                                                                                                                           BENCH
                                                                                                                           SCALE
                                               PILOT
                                               SCALE
AEROBIC BIOLOGICAL
(continued)
JACOBS ENGINEERING GROUP.  INC.
(continued)
NONHALOGENATED VOLATILES
                                MCNAHEE ADVANCED TECHNOLOGY, INC.
                                     AQUEOUS MEDIA
                                     SLUDGES
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
OXIDIZERS
REDUCERS
VOLATILE METALS
                                                                                                                           YES
                                                                                                                                     YES
                               O'BRIEN AND GERE ENGINEERS. INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
REDUCERS
                                                                                                                           YES
                                                                                                                                     YES
                               OHM CORPORATION
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                     SLUDGES
                                                      DIOXINS/FURANS
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      NONHALOGENATED VOLATILES
                                                      NONVOLATILE METALS
                                                      NONHALOGENATED NONVOLATILES
                                                      PCBS
                                                      PESTICIDES
                                                      VOLATILE METALS
                                                                                                                           YES
                                                                                                                                     YES
                               RIVER OAK ASSOCIATES
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      NONHALOGENATED NONVOLATILES
                                                      NONHALOGENATED VOLATILES
                                                                                                                           YES
                                                                                                                                     NO
                               RHT, INC.
                                     AQUEOUS MEDIA
                                II- 10
                                                                                      NOT  SPECIFIED
                                                                                                                           YES
                                                                                                                                     YES

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH     PILOT
                                                                                                                            SCALE     SCALE
AEROBIC BIOLOGICAL
(continued)
RMT. INC.
(continued)

RNK ENVIRONMENTAL, INC.
ORGANIC LIQUID

AQUEOUS MEDIA    NOT SPECIFIED
ORGANIC LIQUID
                                                                                                                            YES       NO
                                RODNEY KINNEY ASSOCIATES
                                                                      AQUEOUS MEDIA    OXIDIZERS
                                                                      ORGANIC LIQUID   PCBs
                                                                                       REDUCERS
                                                                                                                             INP       INP
                                ROY F. UESTON, INC.
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                 PESTICIDES
                 DIOXINS/FURANS
                 HALOGENATED VOLATILES
                 NONHALOGENATED VOLATILES
                 HALOGENATED NONVOLATILES
                 NONHALOGENATED NONVOLATILES
                 PCBs
                                                                                                                            YES       NO
                                SYBRON CHEMICALS,  INC.
                                      ORGANIC LIQUID
                                      AQUEOUS MEDIA
                 HALOGENATED  NONVOLATILES
                 HALOGENATED  VOLATILES
                 INORGANIC  CYANIDES
                 NONHALOGENATED  NONVOLATILES
                 NONHALOGENATED  VOLATILES
                 NONVOLATILE  METALS
                 ORGANIC  CYANIDES
                                                                                                                            YES       YES
                                TREATEK,  INC.
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                                      SEDIMENTS
                                      SLUDGES
                                      SOILS
                 HALOGENATED  NONVOLATILES
                 HALOGENATED  VOLATILES
                 NONHALOGENATED NONVOLATILES
                 NONHALOGENATED VOLATILES
                 NONVOLATILE  METALS
                 PCBs
                 PESTICIDES
                                                                                            YES       NO
                               WASTE STREAM  TECHNOLOGY,  INC.
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                                                                                       NOT  SPECIFIED
                                                                                            INP       INP
                               WESTERN RESEARCH  INSTITUTE
                                                                      AQUEOUS MEDIA
                                                                 II-  11
                                                                                       INORGANIC  CYANIDES
                                                                                                                            YES       YES

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED
                                                                                          CONTAMINANT  GROUPS
                                                                                                                            BENCH     PILOT
                                                                                                                            SCALE     SCALE
AEROBIC BIOLOGICAL
(continued)
WESTERN RESEARCH INSTITUTE
(continued)
                                WOODWARD CLYDE CONSULTANTS


                                YEC INC

                                ZIHPRO PASSAVANT
ORGANIC LIQUID   NONHALOGENATED NONVOLATILES
                 NONVOLATILE METALS
                 ORGANIC CYANIDES

AQUEOUS MEDIA    NOT SPECIFIED
ORGANIC LIQUID

NOT SPECIFIED    NOT SPECIFIED

AQUEOUS MEDIA    NOT SPECIFIED
ORGANIC LIQUID
                                                                                            YES        YES


                                                                                            YES        NO

                                                                                            YES        YES
ANAEROBIC BIOLOGICAL
                                CAA BIOREMEDIATION SYSTEMS
                                CAMBRIDGE  SCIENTIFIC,  INC.

                                CHEMENCO,  INC.


                                D  D ENVIRONMENTAL
                               DETOX,  INC.
                                                                     ORGANIC  LIQUID
                                                                     AQUEOUS  MEDIA
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      NONHALOGENATED NONVOLATILES
                                                      NONHALGENATED VOLATILES
                                                      PCBs
                                                      PESTICIDES
                                     NOT SPECIFIED    HALOGENATED VOLATILES

                                     AQUEOUS MEDIA    NOT SPECIFIED
                                     ORGANIC LIQUID
                                                                                                                            YES        NO
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
                 HALOGENATED NONVOLATILES
                 HALOGENATED VOLATILES
                 NONHALOGENATED NONVOLATILES
                 NONHALOGENATED VOLATILES
                 NONVOLATILE METALS

                 HALOGENATED VOLATILES
                 HALOGENATED NONVOLATILES
                 NONHALOGENATED VOLATILES
                 NONHALOGENATED NONVOLATILES
                 PESTICIDES
                 DIOXINS/FURANS
                                                      INP       INP

                                                      INP       INP


                                                      YES       YES
                                                                                                                            YES        YES
                                                                II- 12

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT  GROUPS
                                                                                                                            BENCH      PILOT
                                                                                                                            SCALE      SCALE
ANAEROBIC BIOLOGICAL
(continued)
DETOX, INC.
(continued)
                                                                                      ORGANIC CYANIDES
                                                                                      ORGANIC CORROSIVES
                                                                                      VOLATILE METALS
                                                                                      NONVOLATILE METALS
                                E  M  &  C  ENGINEERING ASSOCIATES
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                      DIOXINS/FURANS
                                                      HALOGENATED  NONVOLATILES
                                                      HALOGENATED  VOLATILES
                                                      INORGANIC CORROSIVES
                                                      INORGANIC CYANIDES
                                                      NONVOLATILE  METALS
                                                      ORGANIC CYANIDES
                                                      OXIDIZERS
                                                      PCBs
                                                      PESTICIDES
                                                      REDUCERS
                                                      VOLATILE METALS
                                                                                                                            INP        INP
                               ENSR - CELGENE
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                                      NOT SPECIFIED
                                                                                                                           YES       YES
                               ENURIGHT ENVIRONMENTAL, INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                                                      RADIOACTIVE MATERIALS
                                                                                           YES       YES
                               GENERAL PHYSICS CORPORATION
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      NONHALOGENATED NONVOLATILES
                                                      NONHALOGENATED VOLATILES
                                                      ORGANIC CORROSIVES
                                                      ORGANIC CYANIDES
                                                      OXIDIZERS
                                                      REDUCERS
                                                                                                                           YES       YES
                               INTERNATIONAL PROCESS RESEARCH CORP
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                II- 13
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      INORGANIC CORROSIVES
                                                      INORGANIC CYANIDES
                                                                                                                           YES       YES

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                   MEDIA TREATED        CONTAMINANT  GROUPS
                                                                                                                           BENCH     PILOT
                                                                                                                           SCALE     SCALE
ANAEROBIC BIOLOGICAL
(continued)
INTERNATIONAL PROCESS RESEARCH  CORP
(continued)
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
OXIDIZERS
REDUCERS
                               MCNAMEE ADVANCED  TECHNOLOGY, INC.
                                     AQUEOUS MEDIA
                                     SLUDGES
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
OXIDIZERS
REDUCERS
VOLATILE METALS
                                                                                                                           YES
                                                                                                                                     YES
                               O'BRIEN AND GERE ENGINEERS, INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                                                      NONHALOGENATED NONVOLATILES
                                                                                                                           YES       YES
                               OHM CORPORATION
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                     SLUDGES
                                                      DIOXINS/FURANS
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      NONHALOGENATED VOLATILES
                                                      NONVOLATILE METALS
                                                      NONHALOGENATED NONVOLATILES
                                                      PCBs
                                                      PESTICIDES
                                                      VOLATILE METALS
                                                                                                                           YES       YES
                               RADIAN CORPORATION
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                     SLUDGES
                                                                     SOILS
                                                                II-  K
                                                      DIOXINS/FURANS
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      NONHALOGENATED NONVOLATILES
                                                                                                                           YES       YES

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH     PILOT
                                                                                                                            SCALE     SCALE
ANAEROBIC BIOLOGICAL
(continued)
RADIAN CORPORATION
(continued)
SEDIMENTS        NONHALOGENATED  VOLATILES
                 ORGANIC CORROSIVES
                 ORGANIC CYANIDES
                 PCBs
                 PESTICIDES
                                REMEDIATION TECHNOLOGIES
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUID
                                                       HALOGENATED  NONVOLATILES
                                                       HALOGENATED  VOLATILES
                                                       NONHALOGENATED  NONVOLATILES
                                                       NONHALOGENATED  VOLATILES
                                                       ORGANIC  CORROSIVES
                                                       ORGANIC  CYANIDES
                                                                                                                            YES        NO
                                RIVER OAK ASSOCIATES
                                                                      AQUEOUS  MEDIA
                                                                      ORGANIC  LIQUID
                                                      HALOGENATED  NONVOLATILES
                                                      HALOGENATED  VOLATILES
                                                      NONHALOGENATED NONVOLATILES
                                                      NONHALOGENATED VOLATILES
                                                                                                                            YES        NO
                                RMT,  INC.
                                      AQUEOUS MEDIA    NOT SPECIFIED
                                      ORGANIC LIQUID
                                                                                                                           YES
                                                                                                                                      YES
                                RNK  ENVIRONMENTAL,  INC.
                                     AQUEOUS MEDIA    NOT SPECIFIED
                                     ORGANIC LIQUID
                                                                                                                           YES
                                                                                                                                      NO
                                RODNEY  KINNEY  ASSOCIATES
                                                                      AQUEOUS MEDIA    OXIDIZERS
                                                                      ORGANIC LIQUID   PCBs
                                                                                      REDUCERS
                                                                                                                            INP
                                                                                                                                      INP
                               ROY  F. UESTON,  INC.
                                     AQUEOUS MEDIA    PESTICIDES
                                     ORGANIC LIQUID   DIOXINS/FURANS
                                                      HALOGENATED VOLATILES
                                                      NONHALOGENATED VOLATILES
                                                      HALOGENATED NONVOLATILES
                                                      NONHALOGENATED NONVOLATILES
                                                      PCBs
                                                                                                                           YES
                                                                                                                                     YES
                               UNITED STATES TESTING COMPANY.  INC.   NOT SPECIFIED    NOT SPECIFIED
                                                                 II-  15
                                                                                           INP        INP

-------
 TREATMENT TECHNOLOGY
                 TABLE # 2 (CONTINUED)

COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH
                                                                                                                            SCALE
                                                                                                PILOT
                                                                                                SCALE
ANAEROBIC BIOLOGICAL
(continued)
                                VERSAR INC.
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUID
                                                 DIOXINS/FURANS
                                                 HALOGENATED NONVOLATILES
                                                 HALOGENATED VOLATILES
                                                 NONHALOGENATED NONVOLATILES
                                                 NONHALOGENATED VOLATILES
                                                 ORGANIC CORROSIVES
                                                 ORGANIC CYANIDES
                                                 PCBs
                                                 PESTICIDES
                                                                                                                            YES
                                                                                                                                      NO
                                WASTE STREAM TECHNOLOGY, INC.
                                AQUEOUS MEDIA    NOT SPECIFIED
                                ORGANIC LIQUID
                                                                                                                            YES       YES
                                WESTERN RESEARCH INSTITUTE
                                AQUEOUS MEDIA    INORGANIC CYANIDES
                                ORGANIC LIQUID   NONHALOGENATED  NONVOLATILES
                                                 NONVOLATILE  METALS
                                                 ORGANIC  CYANIDES
                                                                                                                            YES       YES
                                YEC INC
                                ZIMPRO PASSAVANT
                                NOT  SPECIFIED     NOT  SPECIFIED

                                AQUEOUS  MEDIA     NOT  SPECIFIED
                                ORGANIC  LIQUID
                                     YES

                                     YES
NO

NO
BIODEGRADATION-COMPOST ING
                                BIOSCIENCE MANAGEMENT,  INC.
                                ORGANIC  LIQUID
                                SOILS
                                SLUDGES
DIOXINS/FURANS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
ORGANIC CORROSIVES
ORGANIC CYANIDES
PCBs
                                                                                                                            YES
                                                                                                                                      YES
                                CYTO CULTURE  ENVIRON.  BIOTECH.
                                                                      SEDIMENTS
                                                                      SLUDGES
                                                                 11-16
                                                 NONHALOGENATED VOLATILES
                                                 ORGANIC CYANIDES
                                                                                                                            YES       YES

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH     PILOT
                                                                                                                            SCALE     SCALE
BIODEGRADATI ON-COMPOST ING
(continued)
CYTO CULTURE ENVIRON. BIOTECH.
(continued)
                                                                      SOILS
                                                                                       PCBs
                                                                                       PESTICIDES
                                DETOX,  INC.
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                                      SEDIMENTS
                                      SLUDGES
                                      SOILS
 HALOGENATED VOLATILES
 HALOGENATED NONVOLATILES
 NONHALOGENATED VOLATILES
 NONHALOGENATED NONVOLATILES
 PESTICIDES
 DIOXINS/FURANS
 ORGANIC CYANIDES
 ORGANIC CORROSIVES
 VOLATILE METALS
 NONVOLATILE METALS
                                                                                            YES       YES
                               EARTH TECHNOLOGY CORP.
                                                                     SEDIMENTS
                                                                     SLUDGES
                                                                     SOILS
                                                                                      NOT SPECIFIED
                                                                                                                           YES
                                                                                                                                     NO
                               ENSR - CELGENE
                                                                     SEDIMENTS
                                                                     SLUDGES
                                                                     SOILS
                                                       NOT  SPECIFIED
                                                                                                                           YES
                                                                                                                                     YES
                               ENVIRONMENTAL REMEDIATION, INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
HALOGENATED VOLATILES
NONHALOGENATED VOLATILES
PCBs
PESTICIDES
                                                                                                                           YES
                                                                                                                                     NO
                               ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                     SEDIMENTS        HALOGENATED NONVOLATILES
                                     SLUDGES          HALOGENATED VOLATILES
                                     SOILS            NONHALOGENATED NONVOLATILES
                                                      NONHALOGENATED VOLATILES
                                                      NONVOLATILE METALS
                                                                                                                           IMP
                                                                                                                                     IMP
                               FORMULA ENVIRONMENTAL COMPANY
                                                                     SLUDGES
                                                                     OTHER SOLIDS
                                                                                      NOT SPECIFIED
                                                                                                                           YES
                                                                                                                                     NO
                                                                II- 17

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED
                                                                                         CONTAMINANT GROUPS
                                                                                                                           BENCH     PILOT
                                                                                                                           SCALE     SCALE
BIOOEGRADATION-COMPOST ING
(continued)
MCNAMEE ADVANCED TECHNOLOGY, INC.
                               RMT, INC.
                                                                     SLUDGES
                                                                     SOILS
                                      SEDIMENTS
                                      SLUDGES
                                      SOILS
 HALOGENATED NONVOLATILES
 HALOGENATED VOLATILES
 INORGANIC CORROSIVES
 INORGANIC CYANIDES
 NONHALOGENATED NONVOLATILES
 NONHALOGENATED VOLATILES
 NONVOLATILE METALS
 ORGANIC CORROSIVES
 ORGANIC CYANIDES
 OXIDIZERS
 REDUCERS
 VOLATILE METALS

 NOT SPECIFIED
                                                                                                                           YES
                                                                                                      YES
                                                                                            YES        YES
                               RNK ENVIRONMENTAL, INC.
                               ROY F. UESTON, INC.
                                      SEDIMENTS
                                      SLUDGES
                                      SOILS
                                      OTHER  SOLIDS

                                      SEDIMENTS
                                      SLUDGES
                                      SOILS
NOT SPECIFIED
                                                                                            YES        NO
PESTICIDES
DIOXINS/FURANS
HALOGENATED VOLATILES
HALOGENATED NONVOLATILES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
PCBs
                                     YES       YES
                               UNITED STATES TESTING COMPANY,  INC.   NOT SPECIFIED    NOT SPECIFIED
                               WASTE STREAM TECHNOLOGY,  INC.
                                     OTHER SOLIDS
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
                                                      NOT SPECIFIED
                                                                                            INP        INP

                                                                                            YES        NO
                                                                II- 18

-------
TREATMENT TECHNOLOGY
                 TABLE # 2 (CONTINUED)

COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH
                                                                                                                            SCALE
                                                                                                PILOT
                                                                                                SCALE
BIOOEGRADATION-NOS
                                BIOSCIENCE MANAGEMENT, INC.
                                CHEMENCO,  INC.
                                COMBUSTION ENGINEERING,  INC.
                                CYTO  CULTURE  ENVIRON.  BIOTECH.
                               E M & C ENGINEERING ASSOCIATES
                               ENSOTECH, INC.
                                SLUDGES
                                SOILS
                                ORGANIC LIQUID

                                SOILS
                                SEDIMENTS
                                OTHER SOLIDS
                                SLUDGES

                                AQUEOUS MEDIA
                                                                     SEDIMENTS
                                                                     SLUDGES
                                                                     SOILS
                                                                     SLUDGES
                                                                     OTHER SOLIDS
                                                                     SOILS
                               ORGANIC LIQUID
                               AQUEOUS MEDIA
 NOT SPECIFIED
 NOT  SPECIFIED
                                      YES
                                      INP
                                                YES
                                                INP
 HALOGENATED VOLATILES
 NONHALOGENATED VOLATILES

 NONHALOGENATED VOLATILES
 ORGANIC CYANIDES
 PCBs
 PESTICIDES

 DIOXINS/FURANS
 HALOGENATED NONVOLATILES
 HALOGENATED VOLATILES
 INORGANIC CORROSIVES
 INORGANIC CYANIDES
 NONVOLATILE METALS
 ORGANIC CYANIDES
 OXIDIZERS
 PCBs
 PESTICIDES
 REDUCERS
 VOLATILE METALS

 HALOGENATED NONVOLATILES
 HALOGENATED VOLATILES
 INORGANIC CORROSIVES
 INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
                                                                                      YES
                                                                                     YES
                                                                                                YES
                                                                                                YES
                                                                                      INP
                                                                                                INP
                                                                                                                           YES       YES
                                                                II- 19

-------
TREATMENT TECHNOLOGY
                                     COMPANY NAME
                       TABLE # 2 (CONTINUED)

                                      MEDIA TREATED
                                                                                         CONTAMINANT GROUPS
                                                                                                                           BENCH     PILOT
                                                                                                                           SCALE     SCALE
BIODEGRADATION-NOS
(continued)
ENSOTECH,  INC.
(continued)
NONVOLATILE METALS
OXIDIZERS
REDUCERS
                               ENSOTECH, INC.
                                     OTHER SOLIDS      HALOGENATED NONVOLATILES
                                     SEDIMENTS         HALOGENATED VOLATILES
                                     SLUDGES           INORGANIC CORROSIVES
                                     SOILS             INORGANIC CYANIDES
                                                       NONHALOGENATED NONVOLATILES
                                                       NONHALOGENATED VOLATILES
                                                       NONVOLATILE METALS
                                                       OXIDIZERS
                                                       REDUCERS
                                                                                                                           YES       YES
                               GROUNDUATER & ENVIRONMENTAL SERVICE   AQUEOUS MEDIA
                                                                     SEDIMENTS
                                                                     SLUDGES
                                                                     SOILS
                                                      NOT SPECIFIED
                                                                                                                           INP       INP
                               HARHON ENVIRONMENTAL SERVICES, INC.    AQUEOUS MEDIA
                                                                     SOILS
                                                      NOT SPECIFIED
                                                                                                                           YES       YES
                               INTERNATIONAL PROCESS RESEARCH CORP   SOILS
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      INORGANIC CORROSIVES
                                                      INORGANIC CYANIDES
                                                      NONHALOGENATED VOLATILES
                                                      NONVOLATILE METALS
                                                      ORGANIC CORROSIVES
                                                      ORGANIC CYANIDES
                                                      OXIDIZERS
                                                      REDUCERS
                                                                                                                           YES       YES
                               MIDWEST RESEARCH INSTITUTE
                                                                     SOILS
                                                                     SLUDGES
                                                                     SEDIMENTS
                                                                     OTHER SOLIDS
                                                                11-20
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      NONHALOGENATED NONVOLATILES
                                                      NONHALOGENATED VOLATILES
                                                                                                                           YES
                                                                                                                                     YES

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                     BENCH     PILOT
                                     SCALE     SCALE
BIOOEGRADATION-NOS
(continued)
MIDWEST RESEARCH INSTITUTE
(continued)
ORGANIC CORROSIVES
ORGANIC CYANIDES
PCBs
                                O'BRIEN AND GERE ENGINEERS,  INC.
                                OHM CORPORATION
                                      SEDIMENTS
                                      SLUDGES
                                      SOILS

                                      SOILS
                                      ORGANIC LIQUID
                                      OTHER SOLIDS
                                RNK  ENVIRONMENTAL,  INC.
                                RNK ENVIRONMENTAL,  INC.
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
                                                                                       DIOXINS/FURANS
                                                                                       HALOGENATED  NONVOLATILES
                                                                                       HALOGENATED  VOLATILES
                                                                                       NONHALOGENATED VOLATILES
                                                                                       NONVOLATILE  METALS
                                                                                       NONHALOGENATED NONVOLATILES
                                                                                       PCBs
                                                                                       PESTICIDES
                                                                                       VOLATILE  METALS

                                                                                       NOT SPECIFIED
                                                                                      NOT  SPECIFIED
                                                                                                                            YES       NO
                                                                                                                            YES       YES
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID

                                      SEDIMENTS
                                      SLUDGES
                                      SOILS
                                      OTHER  SOLIDS
                               UNITED STATES TESTING COMPANY,  INC.   NOT SPECIFIED    NOT SPECIFIED
                                                                                            YES       NO
                                                                                                                            YES        NO
                               ZENON ENVIRONMENTAL
                                                                     SEDIMENTS
                                                                     SLUDGES
                                                                     SOILS
                                                      DIOXINS/FURANS
                                                      HALOGENATED  NONVOLATILES
                                                      HALOGENATED  VOLATILES
                                                      INORGANIC  CORROSIVES
                                                      INORGANIC  CYANIDES
                                                      NONHALOGENATED  NONVOLATILES
                                                      NONHALOGENATED  VOLATILES
                                                      NONVOLATILE  METALS
                                                      ORGANIC  CORROSIVES
                                                                                            INP       INP

                                                                                            YES       YES
                                                                 II- 21

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH      PILOT
                                                                                                                            SCALE      SCALE
BIODEGRADATIOM-NOS
(continued)
ZENON ENVIRONMENTAL
(continued)
ORGANIC CYANIDES
PCBs
PESTICIDES
BIODEGRADATION-SLURRY PHASE
                                BIOSCIENCE  MANAGEMENT,  INC.
                                      ORGANIC  LIQUID
                                                       DIOXINS/FURANS
                                                       HALOGENATED  NONVOLATILES
                                                       HALOGENATED  VOLATILES
                                                       INORGANIC  CYANIDES
                                                       NONHALOGENATED NONVOLATILES
                                                       NONHALOGENATED VOLATILES
                                                       ORGANIC  CORROSIVES
                                                       ORGANIC  CYANIDES
                                                       PCBs
                                                                                                                            YES
                                                                                                                                      YES
                               BIOTROL.  INC.
                               COMBUSTION ENGINEERING.  INC.
                                     AQUEOUS MEDIA
                                     SLUDGES
                                     SLUDGES
                                     SOILS
HALOGENATED VOLATILES
NONVOLATILE METALS
NONHALOGENATED VOLATILES

NOT SPECIFIED
                                                                                                                           NO        YES
                                                                                                                           YES       YES
                               D D ENVIRONMENTAL
                                                                     SEDIMENTS        HALOGENATED NONVOLATILES
                                                                     SLUDGES          HALOGENATED VOLATILES
                                                                     SOILS            NONHALOGENATEO NONVOLATILES
                                                                                      NONHALOGENATED VOLATILES
                                                                                      NONVOLATILE METALS
                                                                                                                           YES       YES
                               DETOX, INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
HALOGENATED VOLATILES
HALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
PESTICIDES
DIOXINS/FURANS
ORGANIC CYANIDES
ORGANIC CORROSIVES
VOLATILE METALS
                                                                                                                           YES       YES
                                                                11-22

-------
TREATMENT TECHNOLOGY
                 TABLE # 2 (CONTINUED)

COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH     PILOT
                                                                                                                            SCALE     SCALE
BIODEGRADATION-SLURRY PHASE     DETOX,  INC.
(continued)                     (continued)
                                                 NONVOLATILE  METALS
                                ENSR -  CELGENE
                                                                      SEDIMENTS
                                                                      SLUDGES
                                                                      SOILS
                                                                                      NOT  SPECIFIED
                                                                                                                            YES        YES
                                ENVIRONMENTAL REMEDIATION,  INC.
                                AQUEOUS MEDIA
                                ORGANIC LIQUID
                                SEDIMENTS
                                SLUDGES
                                SOILS
HALOGENATED VOLATILES
NONHALOGENATED VOLATILES
PCBs
PESTICIDES
                                                                                                                            YES        NO
                                ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                                                     SEDIMENTS        HALOGENATED NONVOLATILES
                                                                     SLUDGES          HALOGENATED VOLATILES
                                                                     SOILS            NONHALOGENATED NONVOLATILES
                                                                                      NONHALOGENATED VOLATILES
                                                                                      NONVOLATILE METALS
                                                                                                                            INP        INP
                               ENURIGHT ENVIRONMENTAL,  INC.
                                SEDIMENTS
                                SLUDGES
                                SOILS
RADIOACTIVE MATERIALS
                                                                                                                           YES        YES
                               MCNAMEE ADVANCED TECHNOLOGY,  INC.
                               SLUDGES
                               SOILS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
OXIDIZERS
REDUCERS
VOLATILE METALS
                                                                                                                           YES       YES
                               REMEDIATION TECHNOLOGIES
                                                                     SOILS
                                                                     SLUDGES
                                                                11-23
                                                NONHALOGENATED VOLATILES
                                                HALOGENATED NONVOLATILES
                                                                                                                           YES       NO

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT  GROUPS
                                                                                                                            BENCH     PILOT
                                                                                                                            SCALE     SCALE
BIOOEGRADAT10N-SLURRY  PHASE
(continued)
REMEDIATION TECHNOLOGIES
(continued)
                                                                     SEDIMENTS
                                                                     OTHER SOLIDS
                                                                     ORGANIC LIQUID
 HALOGEMATED VOLATILES
 ORGANIC CORROSIVES
 ORGANIC CYANIDES
                               RMT,  INC.
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
                                                       NOT  SPECIFIED
                                                                                            YES       YES
                               ROY F. UESTON, INC.
                               SYBRON CHEMICALS, INC.
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
                                     AQUEOUS MEDIA
                                     SOILS
                                     SLUDGES
                                     SEDIMENTS
PESTICIDES
DIOXINS/FURANS
HALOGEMATED VOLATILES
HALOGENATED NONVOLATILES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
PCBs

HALOGEMATED NONVOLATILES
HALOGEMATED VOLATILES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CYANIDES
                                                                                            YES       NO
                                                                                            YES       YES
                               THORNE ENVIRONMENTAL, INC.
                               WASTE STREAM TECHNOLOGY,  INC.
                                     AQUEOUS MEDIA
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
                                     OTHER SOLIDS
                                     SLUDGES
                                     SOILS
                                     SEDIMENTS
HALOGENATED VOLATILES
HALOGEMATED NONVOLATILES
NONHALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
PESTICIDES
RADIOACTIVE MATERIALS
DIOXINS/FURANS

NOT SPECIFIED
                                                                                            YES        YES
                                                                                            YES        NO
                                                                II-  24

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED
                                                                                          CONTAMINANT GROUPS
                                                                                                                            BENCH     PILOT
                                                                                                                            SCALE     SCALE
BIODEGRADATION-SLURRY PHASE
(continued)
WESTERN RESEARCH INSTITUTE
                                                                      AQUEOUS MEDIA
                                                                      SEDIMENTS
                                                                      SLUDGES
                                                                      SOILS
                                                       HALOGENATED VOLATILES
                                                       NONHALOGENATED NONVOLATILES
                                                       NONHALOGENATED VOLATILES
                                                                                                                            YES
                                                                                                                                      NO
                                WOODWARD CLYDE CONSULTANTS
                                                                      SEDIMENTS
                                                                      SLUDGES
                                                                      SOILS
                                                                      OTHER SOLIDS
                                                                                       NOT SPECIFIED
                                                                                                                            YES
                                                                                                                                      YES
BIODEGRADATION-SOLID PHASE
                                BIOSCIENCE MANAGEMENT, INC.
                                      OTHER SOLIDS     DIOXINS/FURANS
                                      SOILS            HALOGENATED NONVOLATILES
                                                       HALOGENATED VOLATILES
                                                       INORGANIC CYANIDES
                                                       NONHALOGENATED NONVOLATILES
                                                       NONHALOGENATED VOLATILES
                                                       ORGANIC CORROSIVES
                                                       ORGANIC CYANIDES
                                                       PCBs
                                                                                                                            YES
                                                                                                                                      YES
                                CAA BIOREMEDIATION SYSTEMS
                                                                      SEDIMENTS         HALOGENATED NONVOLATILES
                                                                      SLUDGES           HALOGENATED VOLATILES
                                                                      SOILS            NONHALOGENATED NONVOLATILES
                                                                                       NONHALOGENATED VOLATILES
                                                                                       PCBs
                                                                                       PESTICIDES
                                                                                                                            YES
                                                                                                                                      NO
                                CYTO  CULTURE  ENVIRON.  BIOTECH.
                                                                      SEDIMENTS         NONHALOGENATED  VOLATILES
                                                                      SLUDGES           ORGANIC CYANIDES
                                                                      SOILS             PCBs
                                                                                       PESTICIDES
                                                                                            YES
                                                                                                                                      YES
                               D D ENVIRONMENTAL
                                                                      SEDIMENTS
                                                                      SLUDGES
                                                                      SOILS
                                                                 11-25
                                                      HALOGENATED  NONVOLATILES
                                                      HALOGENATED  VOLATILES
                                                      NONHALOGENATED NONVOLATILES
                                                      NONHALOGENATED VOLATILES
YES
                                                                                                                                      YES

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED        CONTAMINANT  GROUPS
                                                                                                                           BENCH
                                                                                                                           SCALE
                                               PILOT
                                               SCALE
BIODEGRADATION-SOLID PHASE
(continued)
D D ENVIRONMENTAL
(continued)

DETOX, INC.
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                     SEDIMENTS
                                                                     SLUDGES
                                                                     SOILS
NONVOLATILE METALS

HALOGENATED VOLATILES
HALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
PESTICIDES
DIOXINS/FURANS
ORGANIC CYANIDES
ORGANIC CORROSIVES
VOLATILE METALS
NONVOLATILE METALS
                                                                                                                           YES
                                                                                                                                     YES
                                EARTH TECHNOLOGY CORP.
                                                                     SEDIMENTS
                                                                     SLUDGES
                                                                     SOILS
                                                                                      NOT SPECIFIED
                                                                                                                           YES
                                                                                                                                     NO
                               ENSR  - CELGENE
                                                                     SEDIMENTS
                                                                     SLUDGES
                                                                     SOILS
                                                                                      NOT SPECIFIED
                                                                                                                           YES
                                                                                                                                     YES
                               ENVIRONMENTAL REMEDIATION, INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
HALOGENATED VOLATILES
NONHALOGENATED VOLATILES
PCBs
PESTICIDES
                                                                                                                           YES
                                                                                                                                     NO
                               ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                     SEDIMENTS        HALOGENATED NONVOLATILES
                                     SLUDGES          HALOGENATED VOLATILES
                                     SOILS            NONHALOGENATED NONVOLATILES
                                                      NONHALOGENATED VOLATILES
                                                      NONVOLATILE METALS
                                                                                                                           INP
                                                                                                                                     INP
                               HCNAMEE ADVANCED TECHNOLOGY. INC.
                                     SLUDGES
                                     SOILS
                                                                11-26
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
                                                                                                                           YES
                                                                                                                                     YES

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH     PILOT
                                                                                                                            SCALE     SCALE
BIOOEGRADATION-SOLID PHASE
(continued)
MCNAMEE ADVANCED TECHNOLOGY. INC.
(continued)
                                                                                       NONHALOGENATED  NONVOLATILES
                                                                                       NONHALOGENATED  VOLATILES
                                                                                       NONVOLATILE  METALS
                                                                                       ORGNAIC CORROSIVES
                                                                                       ORGANIC CYANIDES
                                                                                       OXIDIZERS
                                                                                       REDUCERS
                                                                                       VOLATILE METALS
                               REMEDIATION  TECHNOLOGIES
                                                                     OTHER SOLIDS      HALOGENATED  NONVOLATILES
                                                                     SEDIMENTS         HALOGENATED  VOLATILES
                                                                     SOILS             NONHALOGENATED NONVOLATILES
                                                                     SLUDGES           NONHALOGENATED VOLATILES
                                                                                       ORGANIC CORROSIVES
                                                                                       ORGANIC CYANIDES
                                                                                       PCBs
                                                                                                                            YES       NO
                               RMT, INC.
                                      SEDIMENTS
                                      SLUDGES
                                      SOILS
NOT SPECIFIED
                                                                                            YES       YES
                               ROY F. UESTON, INC.
                                     SEDIMENTS        PESTICIDES
                                     SLUDGES          DIOXINS/FURANS
                                     SOILS            HALOGENATED VOLATILES
                                                      HALOGENATED NONVOLATILES
                                                      NONHALOGENATED NONVOLATILES
                                                      NONHALOGENATED VOLATILES
                                                      PCBs
                                                                                            YES        NO
                               SYBRON CHEMICALS, INC.
                                     OTHER SOLIDS     HALOGENATED NONVOLATILES
                                     SEDIMENTS        HALOGENATED VOLATILES
                                     SLUDGES          INORGANIC CYANIDES
                                     SOILS            NONHALOGENATED NONVOLATILES
                                                      NONHALOGENATED VOLATILES
                                                      NONVOLATILE METALS
                                                      ORGANIC CYANIDES
                                                                                            YES        YES
                                                                11-27

-------
TREATMENT TECHNOLOGY
                                                       TABLE # 2 (CONTINUED)

                                      COMPANY NAME                    MEDIA TREATED
                                                                                          CONTAMINANT GROUPS
                                                                                            BENCH     PILOT
                                                                                            SCALE     SCALE
BIODEGRADATION-SOLID PHASE
(continued)
THORNE ENVIRONMENTAL, INC.
                                      AQUEOUS MEDIA
                                      SEDIMENTS
                                      SLUDGES
                                      SOILS
                 HALOGENATED VOLATILES
                 HALOGENATED NONVOLATILES
                 NONHALOGENATED NONVOLATILES
                 NONHALOGENATED VOLATILES
                 PESTICIDES
                 PCBs
                 DIOXINS/FURANS
                                                                                            YES
                                                                                                      YES
                                WASTE  STREAM TECHNOLOGY,  INC.
                                      OTHER SOLIDS
                                      SLUDGES
                                      SOILS
                                      SEDIMENTS
                                                                                       NOT  SPECIFIED
                                                                                                                            YES
                                                                                                                                      NO
                                WESTERN  RESEARCH  INSTITUTE
                                      AQUEOUS MEDIA
                                      SEDIMENTS
                                      SLUDGES
                                      SOILS
                                                                                      NONVOLATILE HETALS
                                                                                                                            NO
                                                                                                                                     NO
IN SITU BIODEGRADATION
BIOSCIENCE MANAGEMENT,  INC.
SOILS            DIOXINS/FURANS
OTHER SOLIDS     HALOGENATED NONVOLATILES
                 HALOGENATED VOLATILES
                 INORGANIC CYANIDES
                 NONHALOGENATED NONVOLATILES
                 NONHALOGENATED VOLATILES
                 ORGANIC CORROSIVES
                 ORGANIC CYANIDES
                 PCBs
                                                                                                                           YES
                                                                                                                                     YES
                                CAA BIOREMEDIATION SYSTEMS
                                                                     SEDIMENTS
                                                                     SLUDGES
                                                                     SOILS
                                                       HALOGENATED NONVOLATILES
                                                       HALOGENATED VOLATILES
                                                       NONHALOGENATED VOLATILES
                                                       NONHALOGENATED NONVOLATILES
                                                       PCBs
                                                       PESTICIDES
                                                                                                                           YES
                                                                                                                                     NO
                               COMBUSTION ENGINEERING,  INC.
                                      SEDIMENTS
                                 11-28
                 HALOGENATED NONVOLATILES
                                                                                                                           YES
                                                                                                                                     YES

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH     PILOT
                                                                                                                            SCALE     SCALE
IN SITU BIODEGRADATION
(continued)
COMBUSTION ENGINEERING, INC.
(continued)
SLUDGES
SOILS
HALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
                                D D ENVIRONMENTAL
                                                                      SEDIMENTS        HALOGENATED NONVOLATILES
                                                                      SLUDGES          HALOGENATED VOLATILES
                                                                      SOILS            NONHALOGENATED NONVOLATILES
                                                                                       NONHALOGENATED VOLATILES
                                                                                       NONVOLATILE METALS
                                                                                                                            YES
                                                                                                                                      YES
                                DETOX,  INC.
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                                      SEDIMENTS
                                      SLUDGES
                                      SOILS
                 HALOGENATED VOLATILES
                 HALOGENATED NONVOLATILES
                 NONHALOGENATED  VOLATILES
                 NONHALOGENATED  NONVOLATILES
                 PESTICIDES
                 DIOXINS/FURANS
                 ORGANIC  CYANIDES
                 ORGANIC  CORROSIVES
                 VOLATILE METALS
                 NONVOLATILE METALS
                                                                                                                            YES
                                                                                                                                      YES
                               ENSOTECH,  INC.
                                      OTHER SOLIDS     HALOGENATED  NONVOLATILES
                                      SEDIMENTS        HALOGENATED  VOLATILES
                                      SLUDGES           INORGANIC  CORROSIVES
                                      SOILS            INORGANIC  CYANIDES
                                                       NONHALOGENATED  NONVOLATILES
                                                       NONHALOGENATED  VOLATILES
                                                       NONVOLATILE  METALS
                                                       OXIDIZERS
                                                       REDUCERS
                                                                                                                            YES       YES
                               ENSR - CELGENE
                                                                     SEDIMENTS
                                                                     SLUDGES
                                                                     SOILS
                                                                                      NOT SPECIFIED
                                                                                                                            YES       YES
                               ENVIRONMENTAL REMEDIATION,  INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                                 II-  29
                HALOGENATED VOLATILES
                NONHALOGENATED VOLATILES
                                     YES       NO

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED
                                                                                         CONTAMINANT GROUPS
                                                      BENCH     PILOT
                                                      SCALE     SCALE
IN SITU BIOOEGRADATION
(continued)
ENVIRONMENTAL REMEDIATION,  INC.
(continued)
SEDIMENTS
SLUDGES
SOILS
PCBs
PESTICIDES
                                ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                      SEDIMENTS         HALOGENATED  NONVOLATILES
                                      SLUDGES           HALOGENATED  VOLATILES
                                      SOILS             NONHALOGENATED  NONVOLATILES
                                                       NONHALOGENATED  VOLATILES
                                                       NONVOLATILE  METALS
                                                                                                                            INP        INP
                               GENERAL PHYSICS CORPORATION
                                     SEDIMENTS         DIOXINS/FURANS
                                     SLUDGES           INORGANIC  CORROSIVES
                                     SOILS             INORGANIC  CYANIDES
                                                       NONVOLATILE METALS
                                                       PCBS
                                                       PESTICIDES
                                                                                                                           YES        NO
                               GROUNDUATER & ENVIRONMENTAL SERVICE   AQUEOUS MEDIA
                                                                     SEDIMENTS
                                                                     SLUDGES
                                                                     SOILS
                                                       NOT  SPECIFIED
                                                                                                                            INP        INP
                               HUNTER BIOSCIENCES, INC.
                                     SLUDGES
                                     SOILS
                 HALOGENATED VOLATILES
                 NONHALOGENATED NONVOLATILES
                 NONHALOGNEATED VOLATILES
                                                                                                                           YES        INP
                               INTERNATIONAL PROCESS RESEARCH CORP   SOILS
                                                       HALOGENATED NONVOLATILES
                                                       HALOGENATED VOLATILES
                                                       INORGANIC CORROSIVES
                                                       INORGANIC CYANIDES
                                                       NONHALOGENATED VOLATILES
                                                       NONVOLATILE METALS
                                                       ORGANIC CORROSIVES
                                                       ORGANIC CYANIDES
                                                       OXIDIZERS
                                                       REDUCERS
                                                                                                                           YES        YES
                                                                11-30

-------
                        TABLE # 2  (CONTINUED)
TREATMENT TECHNOLOGY

IN SITU BIOOEGRADATION
(continued)


COMPANY NAME MEDIA TREATED CONTAMINANT GROUPS

O'BRIEN AND GERE ENGINEERS, INC.
SEDIMENTS NONHALOGENATED NONVOLATILES
SLUDGES
SOILS
BENCH
SCALE

YES


PILOT
SCALE

NO


OHM CORPORATION
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                                      SLUDGES
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                 DIOXINS/FURANS
                 HALOGENATED NONVOLATILES
                 HALOGENATED VOLATILES
                 NONHALOGENATED VOLATILES
                 NONVOLATILE METALS
                 NONHALOGENATED NONVOLATILES
                 PCBs
                 PESTICIDES
                 VOLATILE METALS
                                                                                            YES
                                                                                                      YES
OHM CORPORATION
                                      SOILS
                                      ORGANIC LIQUID
                                      OTHER SOLIDS
                 DIOXINS/FURANS
                 HALOGENATED NONVOLATILES
                 HALOGENATED VOLATILES
                 NONHALOGENATED VOLATILES
                 NONVOLATILE METALS
                 NONHALOGENATED NONVOLATILES
                 PCBs
                 PESTICIDES
                 VOLATILE METALS
                                                                                            YES
                                                                                                      YES
POLYBAC CORPORATION
REMEDIATION TECHNOLOGIES
SOILS            NOT SPECIFIED

SOILS            HALOGENATED NONVOLATILES
SLUDGES          HALOGENATED VOLATILES
SEDIMENTS        INORGANIC CORROSIVES
                 INORGANIC CYANIDES
                 NONHALOGENATED VOLATILES
                 NONHALOGENATED NONVOLATILES
                 NONVOLATILE METALS
                 VOLATILE METALS
                 PCBs
                 PESTICIDES
YES       NO

YES       YES
                                 II-  31

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED
                                                                                          CONTAMINANT  GROUPS
                                                                                                                            BENCH
                                                                                                                            SCALE
                                               PILOT
                                               SCALE
IN SITU BIODEGRADATION
(continued)
RMT, INC.
                                      SEDIMENTS
                                      SLUDGES
                                      SOILS
                                                                                       NOT SPECIFIED
                                                                                                                            YES
                                                                                                      YES
                                ROY  F.  UESTON,  INC.
                                      SEDIMENTS        PESTICIDES
                                      SLUDGES          DIOXINS/FURANS
                                      SOILS            HALOGENATED VOLATILES
                                                       HALOGENATED NONVOLATILES
                                                       NONHALOGENATED NONVOLATILES
                                                       NONHALOGENATED VOLATILES
                                                       PCBs
                                                                                                                            YES
                                                                                                                                     NO
                               SOUTHERN RESEARCH  INSTITUTE
                                                                     AQUEOUS  MEDIA
                                                                     SEDIMENTS
                                                                     SLUDGES
                                                                     SOILS
                                                       HALOGENATED VOLATILES
                                                       NONHALOGENATED  NONVOLATILES
                                                       PCBs
                                                       PESTICIDES
                                                                                                                           YES
                                                                                                                                     NO
                               SYBRON CHEMICALS,  INC.
                                      AQUEOUS MEDIA
                                      SOILS
                                      SEDIMENTS
                                      SLUDGES
                                      OTHER SOLIDS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CYANIDES
                                                                                                                           YES
                                                                                                                                     YES
                               THORNE ENVIRONMENTAL,  INC.
                                     AQUEOUS  MEDIA
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
HALOGENATED VOLATILES
HALOGENATED VOLATILES
NONHALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
PESTICIDES
PCBs
DIOXINS/FURANS
                                                                                                                           YES
                                                                                                                                     YES
                               WASTE STREAM TECHNOLOGY, INC.
                                     OTHER  SOLIDS
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
                                 11-32
                                                       NOT  SPECIFIED
                                                                                                                           INP
                                                                                                                                      INP

-------
TREATMENT  TECHNOLOGY
                 TABLE # 2 (CONTINUED)

COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH
                                                                                                                            SCALE
                                               PILOT
                                               SCALE
 IN SITU BIODEGRADATION
 (continued)
                                WESTERN RESEARCH  INSTITUTE
                                WOODWARD CLYDE CONSULTANTS
                                YEC INC
                                AQUEOUS  MEDIA
                                SEDIMENTS
                                SLUDGES
                                SOILS

                                SEDIMENTS
                                SLUDGES
                                SOILS
                                OTHER  SOLIDS

                                NOT  SPECIFIED
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES

NOT SPECIFIED
                                                                                                                            YES
                                                                                                                                      NO
                                                                                                                            YES       YES
                                                                                       NOT SPECIFIED
                                                                                                                            YES       NO
ROTATING BIOLOGICAL CONTACTORS  ZIMPRO PASSAVANT
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUID
                                                                                       NOT SPECIFIED
                                                                                                                            YES       NO

-------
 TREATMENT TECHNOLOGY
                 TABLE # 2 (CONTINUED)

COMPANY NAME                    MEDIA TREATED
                                                                                          CONTAMINANT  GROUPS
                                                                                                                            BENCH
                                                                                                                            SCALE
                                                                                                PILOT
                                                                                                SCALE
 IMMOBILIZATION

 FIXATION
                                CHEMFIX ENVIRONMENTAL SERVICES.  INC
                                SLUDGES
                                AQUEOUS MEDIA
                                SOILS
                                OTHER SOLIDS
                                                                                       NOT  SPECIFIED
                                                                                                                            YES
                                                                                                                                      YES
SOLIDIFICATION
                                APPLIED SURFACE  TECHNOLOGY
                                COMBUSTION  ENGINEERING,  INC.
                                ZIMPRO PASSAVANT
                                                                      AQUEOUS  MEDIA
                                                                      ORGANIC  LIQUIDS
                                                                      SLUDGES
                                                                      SOILS
                               SOILS
                               SLUDGES
                                                 INORGANIC  CORROSIVES
                                                 OXIDIZERS
                                                 HALOGENATED NONVOLATILES
                                                 HALOGENATED VOLATILES
                                                 NONVOLATILE METALS
                                                 ORGANIC CYANIDES
                                                 INORGANIC  CYANIDES

                                                 NOT SPECIFIED
                                                                                                                            YES        YES
                                                                     NOT SPECIFIED    NOT SPECIFIED
                                                                                      YES
                                                                                                                           YES
                                                                                                                                      YES
                                                                                                                                      YES
STABILIZATION
                                ANDCO ENVIRONMENTAL PROCESSES, INC.   NOT SPECIFIED

                                APPLIED  SURFACE TECHNOLOGY            AQUEOUS MEDIA
                                                                     ORGANIC LIQUIDS
                                                                     SLUDGES
                                                                     SOILS
                                E M & C ENGINEERING ASSOCIATES
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                NOT SPECIFIED

                                                INORGANIC CORROSIVES
                                                OXIDIZERS
                                                HALOGENATED NONVOLATILES
                                                HALOGENATED VOLATILES
                                                NONVOLATILE METALS
                                                ORGANIC CYANIDES
                                                INORGANIC CYANIDES

                                                DIOXINS/FURANS
                                                HALOGENATED NONVOLATILES
                                                HALOGENATED VOLATILES
                                                INORGANIC CORROSIVES
                                                INORGANIC CYANIDES
                                                NONVOLATILE METALS
YES

YES
NO

YES
                                                                                                                            INP        INP
                                                                11-34

-------
 TREATMENT  TECHNOLOGY
                        TABLE # 2 (CONTINUED)

       COMPANY NAME                    MEDIA TREATED       CONTAMINANT  GROUPS
                                                                                                                             BENCH
                                                                                                                             SCALE
                                                                                                       PILOT
                                                                                                       SCALE
 STABILIZATION
 (continued)
 E M & C ENGINEERING ASSOCIATES
 (continued)
                                ENVIROSAFE TECHNOLOGIES, INC.



                                HAZANSUERS,  INC.

                                MCNAMEE ADVANCED TECHNOLOGY, INC.
                                       SEDIMENTS
                                       SLUDGES
                                       SOILS
ORGANIC CYANIDES
OXIDIZERS
PCBs
PESTICIDES
REDUCERS
VOLATILE METALS

NONVOLATILE METALS
PCBs
                                      NOT SPECIFIED    NOT SPECIFIED
                                      AQUEOUS MEDIA
                                      SLUDGES
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
OXIDIZERS
REDUCERS
VOLATILE METALS
INP



INP

YES
INP



INP

YES
STABILIZATION/SOLIDIFICATION
AAA CSI
                                                                      SEDIMENTS
                                                                      SLUDGES
                                                                      SOILS
                                                                 11-35
                                                       HALOGENATED NONVOLATILES
                                                       HALOGENATED VOLATILES
                                                       INORGANIC CORROSIVES
                                                       NONHALOGENATED NONVOLATILES
                                                       NONHALOGENATED VOLATILES
                                                       NONVOLATILE METALS
                                                       ORGANIC CORROSIVES
                                                       OXIDIZERS
                                                       PCBs
                                                       PESTICIDES
                                                                                                                            NO
                                                                                                                                      NO

-------
TREATMENT TECHNOLOGY
                                                       TABLE # 2  (CONTINUED)

                                      COMPANY  NAME                   HEOIA TREATED
                    CONTAMINANT GROUPS
                                     BENCH
                                     SCALE
PILOT
SCALE
STABILIZATION/SOLIDIFICATION    AAA CSI
(continued)                     (continued)
                 REDUCERS
                 VOLATILE METALS
                                AEA  TECHNOLOGY
AQUEOUS MEDIA
ORGANIC LIQUID
SEDIMENTS
SLUDGES
SOILS
                                                                                      RADIOACTIVE MATERIALS
                                                                                                                           YES
                                                                                                                                     YES
                               ANDCO ENVIRONMENTAL  PROCESSES,  INC.   NOT SPECIFIED
                                CHEMENCO,  INC.
SEDIMENTS
SOILS
SLUDGES
OTHER SOLIDS
                 NOT SPECIFIED

                 NOT SPECIFIED
                                     YES

                                     INP
                                                                                                                                     NO
                                                                                                                                      INP
                               CHEMFIX ENVIRONMENTAL  SERVICES,  INC   SLUDGES
                                                                     AQUEOUS MEDIA
                                                                     SOILS
                                                                     OTHER SOLIDS
                                                                                      NOT SPECIFIED
                                                                                                                           YES
                                                                                                                                     YES
                               DIVERSIFIED ENGINEERING,  INC.
SLUDGES
OTHER SOLIDS
                                                                                      NOT SPECIFIED
                                                                                                                           YES        INP
                               EARTH TECHNOLOGY CORP.
OTHER SOLIDS
SEDIMENTS
SLUDGES
SOILS
                                                                                      NOT SPECIFIED
                                                                                                                           YES       NO
                               ENRICO TECHNOLOGIES
OTHER SOLIDS
SLUDGES
                                                                                      NOT SPECIFIED
                                                                                                                           INP       YES
                               ENSOTECH,  INC.
OTHER SOLIDS
SEDIMENTS
SLUDGES
                                                                11-36
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
                                                                                                                           YES       YES

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT  GROUPS
                                                                                                                            BENCH      PILOT
                                                                                                                            SCALE      SCALE
STABILIZATION/SOLIDIFICATION
(continued)
ENSOTECH, INC.
(continued)
 NONHALOGENATED  VOLATILES
 NONVOLATILE  METALS
 OXIDIZERS
 REDUCERS
                                ENSOTECH,  INC.
                                      OTHER  SOLIDS      NONVOLATILE METALS
                                      SEDIMENTS         HALOGENATED NONVOLATILES
                                      SLUDGES           HALOGENATED VOLATILES
                                                       INORGANIC CORROSIVES
                                                       INORGANIC CYANIDES
                                                       NONHALOGENATED NONVOLATILES
                                                       NONHALOGENATED VOLATILES
                                                       OXIDIZERS
                                                       REDUCERS
                                                                                                                            YES
                                                                                                                                      NO
                               ENURIGHT ENVIRONMENTAL, INC.
                                      SEDIMENTS
                                      SLUDGES
                                      SOILS
                                                                                      RADIOACTIVE MATERIALS
                                                                                                                           YES       NO
                               GENERAL PHYSICS CORPORATION
                                                                     OTHER SOLIDS
                                                                     SLUDGES
                                                                     SOILS
                                                      NONVOLATILE METALS
                                                      ORGANIC CORROSIVES
                                                      ORGANIC CYANIDES
                                                      RADIOACTIVE MATERIALS
                                                      VOLATILE METALS
                                                                                                                           YES       YES
                               HARMON ENVIRONMENTAL SERVICES, INC.   SOILS
                                                                     SLUDGES
                                                      PCBs
                                                                                           YES        YES
                               HAZCON ENGINEERING, INC.

                               HUNTER SERVICES, INC.
                                     NOT SPECIFIED

                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
NOT SPECIFIED

DIOXINS/FURANS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
OXIDIZERS
YES       NO

YES       YES
                                                                11-37

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT  GROUPS
                                                                                                                            BENCH
                                                                                                                            SCALE
                                                PILOT
                                                SCALE
STABILIZATION/SOLIDIFICATION
(continued)
HUNTER SERVICES,  INC.
(continued)
                                I IT RESEARCH  INST
                                                                     SLUDGES
                                                                     OTHER SOLIDS
                                                                     SOILS
                               INTERNATIONAL PROCESS RESEARCH CORP   SOILS
                               IT CORPORATION
                                                                     SOILS
PCBs
PESTICIDES
VOLATILE METALS

DIOXINS/FURANS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
ASBESTOS
NONVOLATILE METALS
NONHALOGENATED NONVOLATILES
PCBs
PESTICIDES
VOLATILE METALS
ORGANIC CYANIDES
ORGANIC CORROSIVES
OXIDIZERS

HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
OXIDIZERS
REDUCERS

HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
PCBs
PESTICIDES
                                                                                                                            INP
                                                                                                                                      INP
                                                                                                                           YES
                                                                                                                                     YES
                                                                                                                           YES
                                                                                                                                     NO
                                                                II-  38

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH
                                                                                                                            SCALE
                                                                                                      PILOT
                                                                                                      SCALE
STABILIZATION/SOLIDIFICATION
(continued)
JACOBS ENGINEERING GROUP, INC.
                                KIBER ASSOCIATES,  INC.
                                      SLUDGES          INORGANIC CORROSIVES
                                      SOILS            ORGANIC CORROSIVES
                                      SEDIMENTS        NONVOLATILE METALS
                                                       VOLATILE METALS

                                      OTHER SOLIDS     HALOGENATED NONVOLATILES
                                      SOILS            HALOGENATED VOLATILES
                                                       INORGANIC CORROSIVES
                                                       NONHALOGENATED  NONVOLATILES
                                                       NONHALOGENATED  VOLATILES
                                                       NONVOLATILE METALS
                                                       PESTICIDES
                                                       VOLATILE METALS
                                                                                                                            YES
                                                                                                                                      NO
YES
          NO
                                KIBER  ASSOCIATES,  INC.
                               KIBER ASSOCIATES,  INC.
                                      OTHER  SOLIDS      HALOGENATED  NONVOLATILES
                                      SOILS             HALOGENATED  VOLATILES
                                                       INORGANIC  CORROSIVES
                                                       NONHALOGENATED NONVOLATILES
                                                       NONHALOGENATED VOLATILES
                                                       NONVOLATILE  METALS
                                                       PESTICIDES
                                                       VOLATILE METALS

                                      OTHER  SOLIDS      HALOGENATED  NONVOLATILES
                                      SOILS             HALOGENATED  VOLATILES
                                                       INORGANIC  CORROSIVES
                                                       NONHALOGENATED NONVOLATILES
                                                       NONHALOGENATED VOLATILES
                                                       NONVOLATILE  METALS
                                                       PESTICIDES
                                                       VOLATILE METALS
YES
          NO
YES
          NO
                               MAECORP, INC.
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
                                     OTHER SOLIDS
                                                      NOT SPECIFIED
                                                                                                                           YES
                                                                                                                                      YES
                                                                 11-39

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED
                                                                                         CONTAMINANT GROUPS
                                                                                                                            BENCH
                                                                                                                            SCALE
                                               PILOT
                                               SCALE
STABILIZATION/SOLIDIFICATION
(continued)
MARINE POLUTION CONTROL
                                      AQUEOUS MEDIA
                                      SOILS
ASBESTOS
NONHALOGENATED VOLATILES
PCBs
                                                                                            INP
                                                                                                      INP
                                MCNAMEE  ADVANCED  TECHNOLOGY,  INC.
                                      SLUDGES
                                      SOILS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
OXIDIZERS
REDUCERS
VOLATILE METALS
                                                                                                                            YES       YES
                               O'BRIEN AND GERE ENGINEERS, INC.
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
NONVOLATILE METALS
PCBs
VOLATILE METALS
                                                                                                                           YES       NO
                               OHM CORPORATION
                                     SOILS
                                     ORGANIC LIQUID
                                     OTHER SOLIDS
DIOXINS/FURANS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
NONHALOGENATED NONVOLATILES
PCBs
PESTICIDES
VOLATILE METALS
                                                                                                                           YES       YES
                               PYROGENICS, INC.
                                     SLUDGES
NONHALOTENATED NONVOLATILES
NONVOLATILE METALS
VOLATILE METALS
                                                                                                                           YES        YES
                               OUALTEC, INC.
                                     AQUEOUS MEDIA
                                     SEDIMENTS
                                11-40
HALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
                                                                                                                            INP        INP

-------
TREATMENT TECHNOLOGY
                 TABLE # 2 (CONTINUED)

COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH
                                                                                                                            SCALE
                                               PILOT
                                               SCALE
STABILIZATION/SOLIDIFICATION    QUALTEC,  INC.
(continued)                     (continued)
                                SLUDGES
                                SOILS
NONHALOGENATED VOLATILES
NONVOLATILE METALS
PCBs
                                RADIAN CORPORATION
                                                                      AQUEOUS  MEDIA
                                                                      ORGANIC  LIQUID
                                                 HALOGENATED NONVOLATILES
                                                 HALOGENATED VOLATILES
                                                 NONHALOGENATED  NONVOLATILES
                                                 NONHALOGENATED  VOLATILES
                                                 NONVOLATILE METALS
                                                 ORGANIC  CORROSIVES
                                                 ORGANIC  CYANIDES
                                                 OXIDIZERS
                                                 PCBs
                                                 PESTICIDES
                                                 REDUCERS
                                                 VOLATILE METALS
                                                                                                                            YES
                                                                                                                                      YES
                               REMEDIATION TECHNOLOGIES
                                SEDIMENTS         HALOGENATED NONVOLATILES
                                SOILS             NONHALOGENATED VOLATILES
                                SLUDGES           NONHALOGENATED VOLATILES
                                                 NONHALOGENATED NONVOLATILES
                                                 ORGANIC CORROSIVES
                                                 ORGANIC CYANIDES
                                                 PCBS
                                                 PESTICIDES
                                                                                                                            YES
                                                                                                                                      NO
                               RMC ENV & ANALYTICAL LABORATORIES
                                                                     SOILS            DIOXINS/FURANS
                                                                     SEDIMENTS        HALOGENATED NONVOLATILES
                                                                     SLUDGES          HALOGENATED VOLATILES
                                                                                      NONHALOGENATED NONVOLATILES
                                                                                      NONHALOGENATED VOLATILES
                                                                                      ORGANIC CYANIDES
                                                                                      PCBs
                                                                                      PESTICIDES
                                                                                      ORGANIC CORROSIVES
                                                                                      NONVOLATILE METALS
                                                                                                                            YES
                                                                                                                                      YES
                                                                II- 41

-------
TREATMENT TECHNOLOGY
                                                      TABLE # 2 (CONTINUED)

                                     COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                           BENCH
                                                                                                                           SCALE
                                                                                                     PILOT
                                                                                                     SCALE
STABILIZATION/SOLIDIFICATION
(continued)
RMT, INC.
                                      SEDIMENTS
                                      SLUDGES
                                      SOILS
NOT SPECIFIED
                                                                                           YES
                                                                                                     YES
                               RNK ENVIRONMENTAL, INC.
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
                                     OTHER SOLIDS
                                                                                      NOT  SPECIFIED
                                                                                                                           YES
                                                                                                                                     NO
                               RODNEY KINNEY ASSOCIATES
                                     SLUDGES
                                     SOILS
OXIDIZERS
PCBs
REDUCERS
                                                                                                                           INP
                                                                                                                                     INP
                               ROY F. WESTON,  INC.
                                     SEDIMENTS        PESTICIDES
                                     SLUDGES          D10XINS/FURANS
                                     SOILS            NONVOLATILE METALS
                                                      PCBs
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      INORGANIC CORROSIVES
                                                      INORGANIC CYANIDES
                                                      NONHALOGENATED NONVOLATILES
                                                      NONHALOGENATED VOLATILES
                                                      ORGANIC CORROSIVES
                                                      ORGANIC CYANIDES
                                                                                                                          YES
                                                                                                                                     YES
                               THORNE ENVIRONMENTAL,  INC.
                                     OTHER SOLIDS
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
ORGANIC CYANIDES
VOLATILE METALS
NONVOLATILE METALS
INORGANIC CYANIDES
                                                                                                                          YES       YES
                               VERSAR INC.
                                                                     SEDIMENTS
                                                                     SLUDGES
                                                                     SOILS
                                                                11-42
                                                      D10XINS/FURANS
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      INORGANIC CORROSIVES
                                                      INORGANIC CYANIDES
                                                      NONHALOGENATED NONVOLATILES
                                                                                                                          YES       NO

-------
TREATMENT TECHNOLOGY
                 TABLE # 2 (CONTINUED)

COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH
                                                                                                                            SCALE
                                                                PILOT
                                                                SCALE
STABILIZATION/SOLIDIFICATION    VERSAR INC.
(continued)                     (continued)
                                WESTERN RESEARCH INSTITUTE
                                WOODWARD CLYDE CONSULTANTS
                                YEC  INC

                                ZENON  ENVIRONMENTAL
                                                 NONHALOGENATED VOLATILES
                                                 NONVOLATILE METALS
                                                 ORGANIC CORROSIVES
                                                 ORGANIC CYANIDES
                                                 PCBs
                                                 PESTICIDES

                                                 NONHALOGENATED NONVOLATILES
                                                 NONHALOGENATED VOLATILES
                                                                                       NOT SPECIFIED
SEDIMENTS
SLUDGES
SOILS

SEDIMENTS
SOILS
SLUDGES
OTHER SOLIDS
                                NOT SPECIFIED    NOT  SPECIFIED

                                SEDIMENTS        HALOGENATED NONVOLATILES
                                SLUDGES          HALOGENATED VOLATILES
                                SOILS            INORGANIC CORROSIVES
                                                INORGANIC CYANIDES
                                                NONHALOGENATED NONVOLATILES
                                                NONHALOGENATED VOLATILES
                                                NONVOLATILE METALS
                                                ORGANIC CORROSIVES
                                                ORGANIC CYANIDES
                                                PCBs
                                                PESTICIDES
                                                                                                                            YES
                                                                                                                            YES
                                                                                                                                      YES
                                                                                                                                      YES
                                                      YES

                                                      YES
NO

YES

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH
                                                                                                                            SCALE
                                                                                                      PILOT
                                                                                                      SCALE
                                                                                                                                                      44
IN SITU TECHNOLOGIES

<> IN SITU BICOEGRADATION. SEE BIOLOGICAL

IN SITU RADIO FREQUENCY HEATIN  I IT RESEARCH INST
                                ROY F.  UESTON,  INC.
                                      SLUDGES          DIOXINS/FURANS
                                      OTHER SOLIDS     HALOGENATED HONVOLATILES
                                      SOILS            HALOGENATED VOLATILES
                                                       RADIOACTIVE MATERIALS
                                                       NONVOLATILE METALS
                                                       NONHALOGENATED NONVOLATILES
                                                       PCBs
                                                       PESTICIDES
                                                       VOLATILE METALS
                                                       ORGANIC CYANIDES
                                                       ORGANIC CORROSIVES
                                                       OXIDIZERS

                                      SEDIMENTS        PESTICIDES
                                      SLUDGES          DIOXINS/FURANS
                                      SOILS            NONVOLATILE METALS
                                                       VOLATILE METALS
                                                       PCBs
                                                       HALOGENATED NONVOLATILES
                                                       HALOGENATED VOLATILES
                                                       NONHALOGENATED NONVOLATILES
                                                       NONHALOGENATED VOLATILES
                                                                                            INP
                                                                                                      IMP
                                                                                                                            NO
                                                                                                                                      YES
IN SITU SOIL FLUSHING
APPLIED SURFACE TECHNOLOGY
                                CAA BIOREMEDIATION SYSTEMS
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUIDS
                                                                     SLUDGES
                                                                     SOILS
                                                                     SEDIMENTS
                                                                     SLUDGES
                                                                11-44
INORGANIC CORROSIVES
OXIDIZERS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CYANIDES
INORGANIC CYANIDES

HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
                                                                                                                            YES
                                                                                                                                      YES
                                                                                                                            YES
                                                                                                                                      NO

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                           BENCH
                                                                                                                           SCALE
                                                                                                      PILOT
                                                                                                      SCALE
IN SITU SOIL FLUSHING
(continued)
CAA BIOREMEDIATION SYSTEMS
(continued)
                               CYTO CULTURE ENVIRON. BIOTECH.
                               D D ENVIRONMENTAL
                               DETOX, INC.
                               E M & C ENGINEERING ASSOCIATES
                                                                     SOILS
                                                                     SEDIMENTS
                                                                     SLUDGES
                                                                     SOILS
                                                                     SEDIMENTS
                                                                     SLUDGES
                                                                     SOILS
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
                                                                     SLUDGES
                                                                     OTHER SOLIDS
                                                                     SOILS
 NONHALOGENATED VOLATILES
 NONHALOGENATED NONVOLATILES
 PCBs
 PESTICIDES

 NONHALOGENATED VOLATILES
 ORGANIC  CYANIDES
 PCBS
 PESTICIDES

 HALOGENATED  NONVOLATILES
 HALOGENATED  VOLATILES
 NONHALOGENATED NONVOLATILES
 NONHALOGENATED VOLATILES
 NONVOLATILE  METALS

 HALOGENATED  VOLATILES
 HALOGENATED  NONVOLATILES
 NONHALOGENATED  VOLATILES
 NONHALOGENATED  NONVOLATILES
 PESTICIDES
 DIOXINS/FURANS
 ORGANIC CYANIDES
 ORGANIC CORROSIVES
 VOLATILE METALS
 NONVOLATILE  METALS

 DIOXINS/FURANS
 HALOGENATED  NONVOLATILES
 HALOGENATED  VOLATILES
 INORGANIC CORROSIVES
 INORGANIC CYANIDES
 NONVOLATILE  METALS
ORGANIC CYANIDES
OXIDIZERS
PCBs
PESTICIDES
                                                                                                                           YES
                                                                                                                                     YES
                                                                                                                           YES
                                                                                                                                     YES
                                                                                           YES
YES
                                                                                                                           INP
                                                                                                      INP
                                                                II-  45

-------
TREATMENT  TECHNOLOGY
                                                      TABLE # 2 (CONTINUED)

                                     COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                            BENCH     PILOT
                                                                                            SCALE     SCALE
IN SITU SOIL  FLUSHING
(continued)
E H & C ENGINEERING ASSOCIATES
(continued)
REDUCERS
VOLATILE METALS
                               EARTH TECHNOLOGY CORP.
                                                                     SEDIMENTS
                                                                     SLUDGES
                                                                     SOILS
                                                                                      NOT SPECIFIED
                                                                                                                           YES       NO
                               ENSOTECH, INC.
                                     OTHER  SOLIDS      HALOGENATED NONVOLATILES
                                     SEDIMENTS         HALOGENATED VOLATILES
                                     SLUDGES           INORGANIC CORROSIVES
                                     SOILS             INORGANIC CYANIDES
                                                       NONHALOGENATED NONVOLATILES
                                                       NONHALOGENATED VOLATILES
                                                       NONVOLATILE METALS
                                                       OXIDIZERS
                                                       REDUCERS
                                                                                                                           YES       YES
                               ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                                                     SEDIMENTS
                                                                     SLUDGES
                                                                     SOILS
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      NONHALOGENATED NONVOLATILES
                                                      NONHALOGENATED VOLATILES
                                                                                                                           INP
                                                                                                                                     INP
                               GROUNDWATER & ENVIRONMENTAL SERVICE
                                                                     AQUEOUS MEDIA
                                                                     SEDIMENTS
                                                                     SLUDGES
                                                                     SOILS
                                                                                      NOT SPECIFIED
                                                                                                                           INP
                                                                                                                                     INP
                               HUNTER BIOSCIENCES,  INC.
                                     SLUDGES
                                     SOILS
HALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
                                                                                                                           YES
                                                                                                                                     INP
                               I IT RESEARCH INST
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                11-46
                                                      DIOXINS/FURANS
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      RADIOACTIVE MATERIALS
                                                      NONVOLATILE METALS
                                                      NONHALOGENATED NONVOLATILES
                                                                                                                           YES
                                                                                                                                     INP

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH     PILOT
                                                                                                                            SCALE     SCALE
IN SITU SOIL FLUSHING
(continued)
I IT RESEARCH INST
(continued)
                                                                                       PCBs
                                                                                       PESTICIDES
                                                                                       VOLATILE  METALS
                                                                                       ORGANIC CYANIDES
                                                                                       ORGANIC CORROSIVES
                                                                                       OXIDIZERS
                                O'BRIEN  AND GERE ENGINEERS,  INC.
                                      SOILS
                                      SLUDGES
 HALOGENATED  NONVOLATILES
 HALOGENATED  VOLATILES
 NONHALOGENATED NONVOLATILES
 NONHALOGENATED VOLATILES
                                                                                            YES        NO
                               OHM CORPORATION
                                                                      SOILS
                                                                      ORGANIC LIQUID
                                                                      OTHER SOLIDS
                                                      DIOXINS/FURANS
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      NONHALOGENATED VOLATILES
                                                      NONVOLATILE METALS
                                                      NONHALOGENATED NONVOLATILES
                                                      PCBS
                                                      PESTICIDES
                                                      VOLATILE METALS
                                                                                                                           YES        YES
                               REMEDIATION TECHNOLOGIES
                                                                     SEDIMENTS        HALOGENATED NONVOLATILES
                                                                     SLUDGES          HALOGENATED VOLATILES
                                                                     SOILS            INORGANIC CORROSIVES
                                                                                      INORGANIC CYANIDES
                                                                                      NONHALOGENATED VOLATILES
                                                                                      HALOGENATED VOLATILES
                                                                                      PCBS
                                                                                      PESTICIDES
                                                                                                                           YES       YES
                               RMT, INC.
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
                                                      NOT SPECIFIED
                                     YES       YES
                               ROY F. WESTON, INC.
                                     SEDIMENTS
                                     SLUDGES
                                                                II-
PESTICIDES
DIOXINS/FURANS
YES       NO

-------
 TREATMENT TECHNOLOGY
                       TABLE « 2  (CONTINUED)

      COMPANY  NAME                     MEDIA TREATED
                                                                                          CONTAMINANT  GROUPS
                                                                                                                            BENCH
                                                                                                                            SCALE
                                                                                                     PILOT
                                                                                                     SCALE
 IN SITU SOIL FLUSHING
 (continued)
ROY F.  WESTON,  INC.
(continued)
                                                                      SOILS
                                                                                       NONVOLATILE METALS
                                                                                       INORGANIC  CYANIDES
                                                                                       INORGANIC  CORROSIVES
                                                                                       ORGANIC  CYANIDES
                                                                                       ORGANIC  CORROSIVES
                                                                                       HALOGENATED NONVOLATILES
                                                                                       HALOGENATED VOLATILES
                                                                                       NONHALOGENATED NONVOLATILES
                                                                                       NONHALOGENATED VOLATILES
                                                                                       PCBs
                                SYBRON  CHEMICALS,  INC.
                                     OTHER SOLIDS     HALOGENATED NONVOLATILES
                                     SEDIMENTS        HALOGENATED VOLATILES
                                     SLUDGES          INORGANIC CYANIDES
                                     SOILS            NONHALOGENATED NONVOLATILES
                                                      NONHALOGENATED VOLATILES
                                                      NONVOLATILE METALS
                                                      ORGANIC CYANIDES
                                                                                           YES
                                                YES
                                THORNE ENVIRONMENTAL.  INC.
                                     AQUEOUS MEDIA
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
HALOGENATED VOLATILES
HALOGENATED NONVOLATILES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
PESTICIDES
PCBs
DIOXINS/FURANS
                                                                                           YES
                                                                                                     YES
                               WASTE STREAM TECHNOLOGY, INC.

                               WESTERN RESEARCH INSTITUTE
                                     SOILS

                                     AQUEOUS MEDIA
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
NOT SPECIFIED

HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
NONHALOGENATED VOLATILES
INP

YES
INP

INP
IN SITU VACUUM  &  STEAM EXTRACT  AAA CSI
                                                                     SEDIMENTS
                                                                     SLUDGES
                                                                11-48
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                                                                                           NO
                                                                                                                                     NO

-------
TREATMENT TECHNOLOGY
                 TABLE # 2 (CONTINUED)

COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH     PILOT
                                                                                                                            SCALE     SCALE
IN SITU VACUUM & STEAM EXTRACT  AAA CSI
(continued)                     (continued)
                                SOILS
                                                 INORGANIC CORROSIVES
                                                 NONHALOGENATED NONVOLATILES
                                                 NONHALOGENATED VOLATILES
                                                 NONVOLATILE METALS
                                                 ORGANIC CORROSIVES
                                                 OXID1ZERS
                                                 PCBs
                                                 PESTICIDES
                                                 REDUCERS
                                                 VOLATILE METALS
                                CAA BIOREMEDIATION  SYSTEMS
                                                                      SEDIMENTS         HALOGENATED  NONVOLATILES
                                                                      SLUDGES           HALOGENATED  VOLATILES
                                                                      SOILS             NONHALOGENATED NONVOLATILES
                                                                                       NONHALOGENATED VOLATILES
                                                                                       PCBs
                                                                                       PESTICIDES
                                                                                                                            YES       NO
                               CHEMENCO,  INC.
                                SEDIMENTS
                                SOILS
                                SLUDGES
                                OTHER SOLIDS
                                                 NOT  SPECIFIED
                                                                                      IMP       INP
                               COMBUSTION ENGINEERING,  INC.
                               SLUDGES
                               SOILS
                                                 NOT  SPECIFIED
                                                                                      YES       YES
                               D D ENVIRONMENTAL
                                                                     SEDIMENTS        HALOGENATED NONVOLATILES
                                                                     SLUDGES          HALOGENATED VOLATILES
                                                                     SOILS            NONHALOGENATED NONVOLATILES
                                                                                      NONHALOGENATED VOLATILES
                                                                                      NONVOLATILE METALS
                                                                                      YES       YES
                               DETOX. INC.
                               AQUEOUS MEDIA
                               ORGANIC LIQUID
                               SEDIMENTS
                               SLUDGES
                               SOILS
                          II- 49
HALOGENATED VOLATILES
HALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
PESTICIDES
YES       YES

-------
TREATMENT TECHNOLOGY
                 TABLE # 2 (CONTINUED)

COMPANY NAME                    MEDIA TREATED
                                                                                         CONTAMINANT GROUPS
                                                                                                                           BENCH     PILOT
                                                                                                                           SCALE     SCALE
IN SITU VACUUM & STEAM EXTRACT   DETOX,  INC.
(continued)                     (continued)
                                                 DIOXINS/FURANS
                                                 ORGANIC CYANIDES
                                                 ORGANIC CORROSIVES
                                                 VOLATILE METALS
                                                 NONVOLATILE  METALS
                               EARTH TECHNOLOGY CORP.
                                                                     SEDIMENTS
                                                                     SLUDGES
                                                                     SOILS
                                                                                      NOT SPECIFIED
                                                                                      YES        NO
                               ENSOTECH, INC.
                                OTHER  SOLIDS      HALOGENATED  NONVOLATILES
                                SEDIMENTS         HALOGENATED  VOLATILES
                                SLUDGES           INORGANIC  CORROSIVES
                                SOILS             INORGANIC  CYANIDES
                                                 NONHALOGENATED  NONVOLATILES
                                                 NONHALOGENATED  VOLATILES
                                                 NONVOLATILE  METALS
                                                 OXIDIZERS
                                                 REDUCERS
                                                                                                                           YES       YES
                               ENVIRONMENTAL TECHNOLOGY SOUTHEAST    SEDIMENTS
                                                                     SLUDGES
                                                                     SOILS
                                                HALOGENATED NONVOLATILES
                                                HALOGENATED VOLATILES
                                                NONHALOGENATED NONVOLATILES
                                                NONHALOGENATED VOLATILES
                                                NONVOLATILE METALS
                                                                                                                           INP       INP
                               ENVIROSAFE TECHNOLOGIES, INC.
                               SOILS
HALOGENATED VOLATILES
NONHALOGENATED VOLATILES
                                                                                      INP        INP
                               HUNTER BIOSCIENCES,  INC.
                               SLUDGES
                               SOILS
HALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
                                                                                                                           YES       INP
                               I IT RESEARCH INST
                                                                     SLUDGES
                                                                     OTHER SOLIDS
                                                                     SOILS
                                                                11-50
                                                DIOXINS/FURANS
                                                HALOGENATED NONVOLATILES
                                                HALOGENATED VOLATILES
                                                RADIOACTIVE MATERIALS
                                                                                                                           INP       INP

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH     PILOT
                                                                                                                            SCALE     SCALE
IN SITU VACUUM & STEAM EXTRACT
(continued)
I IT RESEARCH INST
(continued)
 NONVOLATILE METALS
 NONHALOGENATED NONVOLATILES
 PCBs
 PESTICIDES
 VOLATILE METALS
 ORGANIC CYANIDES
 ORGANIC CORROSIVES
 OXIOIZERS
                                MAECORP,  INC.
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
                                                                                      NOT SPECIFIED
                                                                                                                            YES        YES
                                O'BRIEN  AND  GERE  ENGINEERS,  INC.
                                     SOILS
                                     SLUDGES
HALOGENATED VOLATILES
NONHALOGENATED VOLATILES
                                                                                                                           YES       NO
                               OHM CORPORATION
                                                                     SOILS
                                                                     ORGANIC LIQUID
                                                                     OTHER SOLIDS
                                                      DIOXINS/FURANS
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      NONHALOGENATED VOLATILES
                                                      NONVOLATILE METALS
                                                      NONHALOGENATED NONVOLATILES
                                                      PCBs
                                                      PESTICIDES
                                                      VOLATILE METALS
                                                                                                                           YES       YES
                               PETROLEUM TESTING SERVICE, INC.
                                     AQUEOUS MEDIA
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
DIOXINS/FURANS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
PCBs
PESTICIDES
                                                                                                                           YES       NO
                               REMEDIATION TECHNOLOGIES
                                                                     SEDIMENTS
                                                                     SLUDGES
                                                                II- 51
                                                      HALOGENATED VOLATILES
                                                      NONHALOGENATED VOLATILES
                                     YES       YES

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT  GROUPS
                                                                                                                           BENCH     PILOT
                                                                                                                           SCALE     SCALE
IN SITU VACUUM & STEAM EXTRACT
(continued)
REMEDIATION TECHNOLOGIES
(continued)
SOILS
HALOGENATED NONVOLATILES
NONHALOGENATED NONVOLATILES
PCBs
PESTICIDES
                               RMC ENV & ANALYTICAL LABORATORIES
                                                                     SEDIMENTS        DIOXINS/FURANS
                                                                     SLUDGES          HALOGENATED NONVOLATILES
                                                                     SOILS            HALOGENATED VOLATILES
                                                                                      NONHALOGENATED NONVOLATILES
                                                                                      NONHALOGENATED VOLATILES
                                                                                      NONVOLATILE METALS
                                                                                      ORGANIC CORROSIVES
                                                                                      ORGANIC CYANIDES
                                                                                      PCBs
                                                                                      PESTICIDES
                                                                                                                           INP        INP
                               RHT, INC.
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
                                                      NOT  SPECIFIED
                                                                                                                           YES       YES
                               ROY F. UESTON. INC.
                                     SEDIMENTS        PESTICIDES
                                     SLUDGES          DIOXINS/FURANS
                                     SOILS            HALOGENATED VOLATILES
                                                      HALOGENATED NONVOLATILES
                                                      NONHALOGENATED NONVOLATILES
                                                      NONHALOGENATED VOLATILES
                                                      PCBs
                                                                                                                           YES       YES
                               SYBRON CHEMICALS. INC.
                                     OTHER SOLIDS     HALOGENATED NONVOLATILES
                                     SEDIMENTS        HALOGENATED VOLATILES
                                     SLUDGES          INORGANIC CYANIDES
                                     SOILS            NONHALOGENATED NONVOLATILES
                                                      NONHALOGENATED VOLATILES
                                                      NONVOLATILE METALS
                                                      ORGANIC CYANIDES
                                                                                                                           YES       YES
                               VAPEX
                                                                     SEDIMENTS
                                                                11-52
                                                                                      HALOGENATED VOLATILES
                                                                                                                           YES       YES

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH
                                                                                                                            SCALE
                                                                PILOT
                                                                SCALE
IN SITU VACUUM & STEAM EXTRACT
(continued)
VAPEX
(continued)
                                WOODWARD CLYDE CONSULTANTS
SLUDGES
SOILS

SEDIMENTS
SLUDGES
SOILS
OTHER SOLIDS
                 NONHALOGENATED VOLATILES
                                                                                       NOT  SPECIFIED
                                                                                                                            YES
                                                                                                                                      YES
IN SITU VITRIFICATION
                                DETOX,  INC.
                                RMC ENV & ANALYTICAL LABORATORIES
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                                      SEDIMENTS
                                      SLUDGES
                                      SOILS
                                                                     SEDIMENTS
                                                                     SLUDGES
                                                                     SOILS
                 HALOGENATED VOLATILES
                 HALOGENATED NONVOLATILES
                 NONHALOGENATED VOLATILES
                 NONHALOGENATED NONVOLATILES
                 PESTICIDES
                 DIOXINS/FURANS
                 ORGANIC CYANIDES
                 ORGANIC CORROSIVES
                 VOLATILE METALS
                 NONVOLATILE METALS

                 DIOXINS/FURANS
                 HALOGENATED NONVOLATILES
                 HALOGENATED VOLATILES
                 NONHALOGENATED NONVOLATILES
                 NONHALOGENATED VOLATILES
                 NONVOLATILE METALS
                 ORGANIC CORROSIVES
                 ORGANIC CYANIDES
                 PCBs
                 PESTICIDES
                                                                                                                            YES
                                                                                                                                      YES
                                                                                                                           YES
                                                                                                     YES

-------
TREATMENT TECHNOLOGY
                 TABLE # 2 (CONTINUED)

COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH
                                                                                                                            SCALE
                                                                                                PILOT
                                                                                                SCALE
CHEMICAL/PHYSICAL

ACTIVATED CARBON
                                AAA CSI
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUID
                                                 HALOGENATED NONVOLATILES
                                                 HALOGENATED VOLATILES
                                                 INORGANIC CORROSIVES
                                                 NONHALOGENATED NONVOLATILES
                                                 NONHALOGENATED VOLATILES
                                                 NONVOLATILE METALS
                                                 ORGANIC CORROSIVES
                                                 OXIDIZERS
                                                 PCBs
                                                 PESTICIDES
                                                 REDUCERS
                                                 VOLATILE METALS
                                                                                                                            NO
                                                                                                                                      NO
                                ANDCO  ENVIRONMENTAL  PROCESSES,  INC.    NOT SPECIFIED    NOT  SPECIFIED
                               APPLIED  SURFACE  TECHNOLOGY
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUIDS
                                                                      SLUDGES
                                                                      SOILS
                               CAA BIOREMEDIATION  SYSTEMS
                                                                     AQUEOUS  MEDIA
                                                                     ORGANIC  LIQUID
                                                 INORGANIC CORROSIVES
                                                 OXIDIZERS
                                                 HALOGENATED  NONVOLATILES
                                                 HALOGENATED  VOLATILES
                                                 NONVOLATILE  METALS
                                                 ORGANIC CYANIDES
                                                 INORGANIC CYANIDES

                                                 HALOGENATED  NONVOLATILES
                                                 HALOGENATED  VOLATILES
                                                 NONHALOGENATED  NONVOLATILES
                                                 NONHALOGENATED  VOLATILES
                                                 PCBs
                                                 PESTICIDES
                                                                                      YES       NO

                                                                                      YES       YES
                                                                                                                            YES        NO
                               CHEMENCO,  INC.
                               COMBUSTION ENGINEERING,  INC.
                               AQUEOUS  MEDIA     NOT  SPECIFIED
                               ORGANIC  LIQUID

                               AQUEOUS  MEDIA     NOT  SPECIFIED
                               ORGANIC  LIQUID
                                                                                      INP        INP
YES       YES
                                                                 11-54

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH
                                                                                                                            SCALE
          PILOT
          SCALE
ACTIVATED CARBON
(continued)
DETOX, INC.
                               DIVERSIFIED  ENGINEERING,  INC.

                               E M & C ENGINEERING ASSOCIATES
                               EARTH TECHNOLOGY CORP.
                               ENVIRONMENTAL RESOURCE ASSOCIATES
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUID
                                                                      SEDIMENTS
                                                                      SLUDGES
                                                                      SOILS
                                                       HALOGENATED VOLATILES
                                                       HALOGENATED NONVOLATILES
                                                       NONHALOGENATED VOLATILES
                                                       NONHALOGENATED NONVOLATILES
                                                       PESTICIDES
                                                       DIOXINS/FURANS
                                                       ORGANIC CYANIDES
                                                       ORGANIC CORROSIVES
                                                       VOLATILE METALS
                                                       NONVOLATILE METALS
                                                                                                                            YES
                                                                                                                                     YES
                                      NOT  SPECIFIED     NOT  SPECIFIED
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID

                                     AQUEOUS MEDIA
                               ENVIRONMENTAL TECHNOLOGY SOUTHEAST    AQUEOUS MEDIA
                                                                11-55
                                                      DIOXINS/FURANS
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      INORGANIC CORROSIVES
                                                      INORGANIC CYANIDES
                                                      NONVOLATILE HETALS
                                                      ORGANIC CYANIDES
                                                      OXIDIZERS
                                                      PCBs
                                                      PESTICIDES
                                                      REDUCERS
                                                      VOLATILE METALS

                                                      NOT SPECIFIED
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      INORGANIC CORROSIVES
                                                      NONHALOGENATED NONVOLATILES
                                                      NONHALOGENATED VOLATILES
                                                      NONVOLATILE METALS

                                                      HALOGENATED NONVOLATILES
INP       YES

INP       INP
                                                                                                                           YES       NO
                                                                                                                           YES       YES
                                                                                           INP       INP

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED
                                                                                         CONTAMINANT  GROUPS
                                                                                                                            BENCH     PILOT
                                                                                                                            SCALE     SCALE
ACTIVATED CARBON
(continued)
ENVIRONMENTAL TECHNOLOGY SOUTHEAST
(continued)
HALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
                                ENURIGHT  ENVIRONMENTAL,  INC.
                                      AQUEOUS  MEDIA
                                      ORGANIC  LIQUID
                                                                                      RADIOACTIVE MATERIALS
                                                                                                                           YES       YES
                                GENERAL PHYSICS CORPORATION
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                       DIOXINS/FURANS
                                                       HALOGENATED  NONVOLATILES
                                                       HALOGENATED  VOLATILES
                                                       NONHALOGENATED  NONVOLATILES
                                                       NONHALOGENATED  VOLATILES
                                                       NONVOLATILE  METALS
                                                       ORGANIC CORROSIVES
                                                       ORGANIC CYANIDES
                                                       REDUCERS
                                                                                                                           YES       YES
                                GROUNDUATER & ENVIRONMENTAL SERVICE
                                                                     AQUEOUS MEDIA
                                                                     SEDIMENTS
                                                                     SLUDGES
                                                                     SOILS
                                                       NOT SPECIFIED
                                                                                            INP        INP
                               HUNTER BIOSCIENCES,  INC.
                                     AQUEOUS MEDIA
HALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
                                                                                                                           YES       INP
                                I IT RESEARCH INST
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                     SOILS
                                                                     OTHER SOLIDS
                                                                     SEDIMENTS
                                                      DIOXINS/FURANS
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      RADIOACTIVE MATERIALS
                                                      NONVOLATILE METALS
                                                      NONHALOGENATED NONVOLATILES
                                                      PCBs
                                                      PESTICIDES
                                                      VOLATILE METALS
                                                      ORGANIC CYANIDES
                                                                                                                           INP       INP
                                                                11-56

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH
                                                                                                                            SCALE
                                                                                                      PILOT
                                                                                                      SCALE
ACTIVATED CARBON
(continued)
I IT RESEARCH INST
(continued)
                                                                                       ORGANIC CORROSIVES
                                                                                       OXIDIZERS
                                I IT RESEARCH INST
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUID
                                INTERNATIONAL  PROCESS RESEARCH CORP
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUID
                                                       DIOXINS/FURANS
                                                       HALOGENATED NONVOLATILES
                                                       HALOGENATED VOLATILES
                                                       RADIOACTIVE MATERIALS
                                                       NONVOLATILE METALS
                                                       NONHALOGENATED NONVOLATILES
                                                       PCBs
                                                       PESTICIDES
                                                       VOLATILE  METALS
                                                       ORGANIC CYANIDES
                                                       ORGANIC CORROSIVES
                                                       OXIDIZERS

                                                       HALOGENATED NONVOLATILES
                                                       HALOGENATED VOLATILES
                                                       INORGANIC CORROSIVES
                                                       INORGANIC CYANIDES
                                                       NONHALOGENATED VOLATILES
                                                       NONVOLATILE METALS
                                                       ORGANIC CORROSIVES
                                                       ORGANIC CYANIDES
                                                       OXIDIZERS
                                                       REDUCERS
                                                                                                                            YES
                                                INP
                                                                                                                            YES
                                                YES
                                IT CORPORATION
                                                                      AQUEOUS MEDIA
                               KIBER ASSOCIATES.  INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                                                                 11-57
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS

HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
                                                                                                                            YES
                                                                                                                                      YES
YES
          NO

-------
TREATHENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED        CONTAMINANT  GROUPS
                                                                                                                           BENCH      PILOT
                                                                                                                           SCALE      SCALE
ACTIVATED CARBON
(continued)
KIBER ASSOCIATES,  INC.
(continued)
                                KSE,  IMC.
                               MAECORP, IMC.
                               MCNAHEE ADVANCED TECHNOLOGY, INC.
                               MIDWEST RESEARCH INSTITUTE
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID

                                     AQUEOUS MEDIA
                                     SLUDGES
                                                                     SEDIMENTS
                                                                     SOILS
                                                                     SLUDGES
                                                                     OTHER SOLIDS
 NONVOLATILE METALS
 ORGANIC CORROSIVES
 ORGANIC CYANIDES
 PCBs
 VOLATILE METALS

 HALOGENATED VOLATILES
 NONHALOGEHATED VOLATILES
 NONVOLATILE METALS
 VOLATILE METALS

 NOT SPECIFIED
HALOGENATED MONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE HETALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
OXIDIZERS
REDUCERS
VOLATILE METALS

HALOGENATED VOLATILES
HALOGENATED NONVOLATILES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
YES       YES
                                                                                           YES        YES
                                     YES       YES
                                                                                                                           YES
                                                                                                                                     YES
                               NATIONAL SANITATION FOUNDATION

                               O'BRIEN AND GERE ENGINEERS, INC.
                                     NOT SPECIFIED    NOT SPECIFIED

                                     AQUEOUS MEDIA    HALOGENATED NONVOLATILES
                                     ORGANIC LIQUID   HALOGENATED VOLATILES
                                                      NONHALOGENATED NONVOLATILES
                                11-58
                                     INP

                                     YES
          INP

          YES

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH
                                                                                                                            SCALE
                                                                                                      PILOT
                                                                                                      SCALE
ACTIVATED CARBON
(continued)
O'BRIEN AND GERE ENGINEERS, INC.
(continued)
                                                                                       NONHALOGENATED VOLATILES
                                                                                       PCBs
                                                                                       PESTICIDES
                                OHM CORPORATION
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUID
                                                                      SLUDGES
                                                       DIOXINS/FURANS
                                                       HALOGENATED  NONVOLATILES
                                                       HALOGENATED  VOLATILES
                                                       NONHALOGENATED VOLATILES
                                                       NONVOLATILE  HETALS
                                                       NONHALOGENATED NONVOLATILES
                                                       PCBs
                                                       PESTICIDES
                                                       VOLATILE METALS
                                                                                                                            YES
                                                                                                                                      YES
                                RADIAN  CORPORATION
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUID
                                                       HALOGENATED  NONVOLATILES
                                                       HALOGENATED  VOLATILES
                                                       NONHALOGENATED NONVOLATILES
                                                       NONHALOGENATED VOLATILES
                                                       NONVOLATILE  METALS
                                                       ORGANIC CORROSIVES
                                                       ORGANIC CYANIDES
                                                       OXIDIZERS
                                                       PCBs
                                                       PESTICIDES
                                                       REDUCERS
                                                       VOLATILE METALS
                                                                                                                            YES
                                                                                                                                      YES
                               REMEDIATION TECHNOLOGIES
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                      HALOGENATED NONVOLATILES
                                                      NONHALOGENATED VOLATILES
                                                      HALOGENATED VOLATILES
                                                      NONHALOGENATED NONVOLATILES
                                                      ORGANIC CORROSIVES
                                                      ORGANIC CYANIDES
                                                                                                                           YES
          YES
                               RIVER OAK ASSOCIATES
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                11-59
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      INORGANIC CORROSIVES
YES
          NO

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED
                                                                                          CONTAMINANT  GROUPS
                                                                                                                            BENCH     PILOT
                                                                                                                            SCALE     SCALE
ACTIVATED CARBON
(continued)
RIVER OAK ASSOCIATES
(continued)
 INORGANIC CYANIDES
 NONHALOGENATED NONVOLATILES
 NONVOLATILE METALS
 OX1DIZERS
 RADIOACTIVE MATERIALS
 REDUCERS
 VOLATILE METALS
                                RMT,  INC.
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                                                                                       NOT SPECIFIED
                                                                                                                            YES       YES
                                RNK ENVIRONMENTAL,  INC.
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                                                       NOT SPECIFIED
                                                                                                                            YES        NO
                                ROY  F. WESTON,  INC.
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
PESTICIDES
DIOXINS/FURANS
NONVOLATILE METALS
INORGANIC CYANIDES
ORGANIC CYANIDES
INORGANIC CORROSIVES
ORGANIC CORROSIVES
HALOGENATED VOLATILES
HALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
PCBs
                                                                                                                            YES        YES
                               WESTERN RESEARCH  INSTITUTE
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                     SLUDGES
                                                                     SOILS
                                                       INORGANIC  CYANIDES
                                                       NONHALOGENATED  NONVOLATILES
                                                       NONVOLATILE METALS
                                                       ORGANIC  CYANIDES
                                                       PCBS
                                                                                                                           NO
                                                                                                                                     YES
                               YEC INC
                               ZENON ENVIRONMENTAL
                                                                     NOT SPECIFIED
                                                                                      NOT SPECIFIED
                                                                     AQUEOUS MEDIA    NONHALOGENATED NONVOLATILES
                                                                     ORGANIC LIQUID   DIOXINS/FURANS
                                                                11-60
                                                                                            YES

                                                                                            YES
                                                                                                                                     NO

                                                                                                                                     YES

-------
TREATMENT  TECHNOLOGY
                                      COMPANY NAME
                       TABLE # 2 (CONTINUED)

                                      MEDIA TREATED
                                                                                          CONTAMINANT GROUPS
                                                                                                                            BENCH
                                                                                                                            SCALE
                                               PILOT
                                               SCALE
ACTIVATED CARBON
(continued)
ZENON ENVIRONMENTAL
(continued)
HALOGENATED VOLATILES
NONHALOGENATED VOLATILES
ORGANIC CORROSIVES
ORGANIC CYANIDES
OXIDIZERS
PCBs
PESTICIDES
REDUCERS
<> ACTIVATED SLUDGE, SEE BIOLOGICAL

ADSORPTION                      AAA CSI
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUID
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      INORGANIC CORROSIVES
                                                      NONHALOGENATED NONVOLATILES
                                                      NONHALOGENATED VOLATILES
                                                      NONVOLATILE METALS
                                                      ORGANIC CORROSIVES
                                                      OXIDIZERS
                                                      PCBs
                                                      PESTICIDES
                                                      REDUCERS
                                                      VOLATILE METALS
                                                                                                                            NO
                                                                                                                                      NO
                                APPLIED SURFACE TECHNOLOGY
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUIDS
                                                                      SLUDGES
                                                                      SOILS
                                                      INORGANIC CORROSIVES
                                                      OXIDIZERS
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      NONVOLATILE METALS
                                                      ORGANIC CYANIDES
                                                      INORGANIC CYANIDES
                                                                                                                            YES
                                                                                                                                      YES
                                CAA BIOREMEDIATION  SYSTEMS
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUID
                                                                 11-61
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      NONHALOGENATED NONVOLATILES
                                                      NONHALOGENATED VOLATILES
                                                                                                                           YES
                                                                                                                                      NO

-------
TREATMENT TECHNOLOGY
                       TABLE # 2  (CONTINUED)

      COMPANY NAME                     MEDIA TREATED
                                                                                         CONTAMINANT GROUPS
                                     BENCH      PILOT
                                     SCALE      SCALE
ADSORPTION
(continued)
CAA BIOREMEDIATION  SYSTEMS
(continued)
                                CHEMENCO,  INC.


                                COMBUSTION ENGINEERING, INC.


                                COMBUSTION ENGINEERING, INC.

                                D D ENVIRONMENTAL
                               DETOX, INC.
                               DIVERSIFIED ENGINEERING,  INC.
                               E H & C ENGINEERING ASSOCIATES
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID

                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID

                                     NOT SPECIFIED

                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
                                     NOT SPECIFIED

                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
PCBs
PESTICIDES

NOT SPECIFIED


NOT SPECIFIED


NOT SPECIFIED

HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS

HALOGENATED VOLATILES
HALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
PESTICIDES
DIOXINS/FURANS
ORGANIC CYANIDES
ORGANIC CORROSIVES
VOLATILE METALS
NONVOLATILE METALS

NOT SPECIFIED

DIOXINS/FURANS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONVOLATILE METALS
ORGANIC CYANIDES
INP


YES


INP

YES
INP


YES


INP

YES
                                                                                                                           YES       YES
INP

INP
INP

INP
                                                                II-  62

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH     PILOT
                                                                                                                            SCALE     SCALE
ADSORPTION
(continued)
E M & C ENGINEERING ASSOCIATES
(continued)
 OXIDIZERS
 PCBs
 PESTICIDES
 REDUCERS
 VOLATILE METALS
                                EARTH  TECHNOLOGY  CORP.
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                                      NOT  SPECIFIED
                                                                                                                            YES
                                                                                                                                     NO
                                ENSOTECH.  INC.
                                     ORGANIC  LIQUID
                                     AQUEOUS  MEDIA
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
OXIDIZERS
REDUCERS
                                                                                                                           YES       YES
                               GENERAL PHYSICS CORPORATION
                                                                     SOILS            DIOXINS/FURANS
                                                                     SLUDGES          HALOGENATED NONVOLATILES
                                                                     SEDIMENTS        HALOGENATED VOLATILES
                                                                                      INORGANIC CORROSIVES
                                                                                      INORGANIC CYANIDES
                                                                                      NONHALOGENATED NONVOLATILES
                                                                                      NONHALOGENATED VOLATILES
                                                                                      NONVOLATILE METALS
                                                                                      PCBs
                                                                                      PESTICIDES
                                                                                      VOLATILE METALS
                                                                                                                           YES
                                                                                                                                     NO
                               HUNTER SERVICES, INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                                                                11-63
DIOXINS/FURANS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
                                                                                           YES
                                                                                                     YES

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED
                                                                                         CONTAMINANT GROUPS
                                                                                                                           BENCH
                                                                                                                           SCALE
                                                                                                     PILOT
                                                                                                     SCALE
ADSORPTION
(continued)
HUNTER SERVICES,  INC.
(continued)
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
PCBs
PESTICIDES
VOLATILE METALS
                                HUNTER SERVICES,  INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
DIOXINS/FURANS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
PCBs
PESTICIDES
VOLATILE METALS
                                                                                           YES
                                                                                                     YES
                               I IT RESEARCH 1NST
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                     SOILS
                                                                     OTHER SOLIDS
                                                                     SEDIMENTS
                                                      DIOXINS/FURANS
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      RADIOACTIVE MATERIALS
                                                      NONVOLATILE METALS
                                                      NONHALOGENATED NONVOLATILES
                                                      PCBs
                                                      PESTICIDES
                                                      VOLATILE METALS
                                                      ORGANIC CYANIDES
                                                      ORGANIC CORROSIVES
                                                      OXIDIZERS
                                                                                                                           INP
                                                                                                                                     INP
                               I IT RESEARCH INST
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                II- 64
                                                      DIOXINS/FURANS
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      RADIOACTIVE MATERIALS
                                                                                                                           YES
                                               INP

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH     PILOT
                                                                                                                            SCALE     SCALE
ADSORPTION
(continued)
I IT RESEARCH INST
(continued)
 NONVOLATILE  METALS
 NONHALOGENATED NONVOLATILES
 PCBs
 PESTICIDES
 VOLATILE METALS
 ORGANIC CYANIDES
 ORGANIC CORROSIVES
 OXIDI2ERS
                                INTERNATIONAL PROCESS RESEARCH CORP
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUID
                                                       HALOGENATED  NONVOLATILES
                                                       HALOGENATED  VOLATILES
                                                       INORGANIC CORROSIVES
                                                       INORGANIC CYANIDES
                                                       NONHALOGENATED VOLATILES
                                                       NONVOLATILE  METALS
                                                       ORGANIC CORROSIVES
                                                       ORGANIC CYANIDES
                                                       OXIDIZERS
                                                       REDUCERS
                                                                                                                            YES       YES
                                KSE,  INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
HALOGENATED VOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
VOLATILE METALS
                                                                                                                            YES       YES
                                MAECORP,  INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                                                      NONHALOGENATED VOLATILES
                                                                                                                            YES       YES
                               MCNAHEE ADVANCED  TECHNOLOGY,  INC.
                                     AQUEOUS MEDIA
                                     SLUDGES
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
                                                                                            YES        YES
                                                                 11-65

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED        CONTAMINANT  GROUPS
                                                                                                                           BENCH     PILOT
                                                                                                                           SCALE     SCALE
ADSORPTION
(continued)
MCNAHEE ADVANCED TECHNOLOGY.  INC.
(continued)
                                                                                      OXIDIZERS
                                                                                      REDUCERS
                                                                                      VOLATILE METALS
                               O'BRIEN AND GERE ENGINEERS, INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
NONHALOGENATED VOLATILES
ORGANIC CYANIDES
PCBs
PESTICIDES
VOLATILE METALS
                                                                                                                           YES
                                                                                                                                     YES
                               OHM CORPORATION
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                     SLUDGES
                                                      DIOXINS/FURANS
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      NONHALOGENATED VOLATILES
                                                      NONVOLATILE METALS
                                                      NONHALOGENATED NONVOLATILES
                                                      PCBs
                                                      PESTICIDES
                                                      VOLATILE METALS
                                                                                                                           YES
                                                                                                                                     YES
                               RIVER OAK ASSOCIATES
                                                                     AQUEOUS  MEDIA
                                                                     ORGANIC  LIQUID
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      INORGANIC CORROSIVES
                                                      INORGANIC CYANIDES
                                                      NONHALOGENATED NONVOLATILES
                                                      NONVOLATILE METALS
                                                      OXIDIZERS
                                                      RADIOACTIVE MATERIALS
                                                      REDUCERS
                                                      VOLATILE METALS
                                                                                                                           YES
                                                                                                                                     NO
                               RMT,  INC.
                               SYBRON CHEMICALS,  INC.
                                     AQUEOUS MEDIA    NOT SPECIFIED
                                     ORGANIC LIQUID
                                     AQUEOUS MEDIA
                                II- 66
                                                      HALOGENATED NONVOLATILES
                                                                                           YES       YES
                                                                                           YES       YES

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH     PILOT
                                                                                                                            SCALE     SCALE
ADSORPTION
(continued)
SYBRON CHEMICALS,  INC.
(continued)
                                TREATEK,  INC.
                                VERSAR  INC.
                               WOODWARD CLYDE CONSULTANTS


                               YEC  INC

                               YEC  INC

                               ZIMPRO PASSAVANT
                                                                      ORGANIC LIQUID
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                                      SEDIMENTS
                                      SLUDGES
                                      SOILS
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUID
 HALOGENATED VOLATILES
 INORGANIC CYANIDES
 NONHALOGENATED VOLATILES
 NONVOLATILE METALS
 ORGANIC CYANIDES

 HALOGENATED NONVOLATILES
 HALOGENATED VOLATILES
 NONHALOGENATED NONVOLATILES
 NONHALOGENATED VOLATILES
 NONVOLATILE METALS
 PCBs
 PESTICIDES

DIOXINS/FURANS
 HALOGENATED NONVOLATILES
 HALOGENATED VOLATILES
 INORGANIC CORROSIVES
 INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
OXIDIZERS
REDUCERS
VOLATILE METALS
                                                                                                                            YES
                                                                                                                                      NO
                                                                                                                            YES
                                                                                                                                      YES
                                     AQUEOUS MEDIA    NOT SPECIFIED
                                     ORGANIC LIQUID

                                     NOT SPECIFIED    NOT SPECIFIED

                                     NOT SPECIFIED    NOT SPECIFIED

                                     AQUEOUS MEDIA    NOT SPECIFIED
                                     ORGANIC LIQUID
                                     YES


                                     YES

                                     YES

                                     YES
YES


NO

NO

YES
                                                                 II- 67

-------
TREATMENT TECHNOLOGY
                 TABLE # 2 (CONTINUED)

COMPANY NAME                    MEDIA TREATED        CONTAMINANT  GROUPS
                                                                                                                           BENCH
                                                                                                                           SCALE
                                                                                                PILOT
                                                                                                SCALE
CATALYSIS
                                AAA CSI
                               APPLIED SURFACE TECHNOLOGY
                               CHEMENCO, INC.
                               E M & C ENGINEERING ASSOCIATES
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUIDS
                                                                     SLUDGES
                                                                     SOILS
                               AQUEOUS MEDIA
                               ORGANIC LIQUID

                               AQUEOUS MEDIA
                               ORGANIC LIQUID
                                                 HALOGENATED  NONVOLATILES
                                                 HALOGENATED  VOLATILES
                                                 INORGANIC CORROSIVES
                                                 NONHALOGENATED NONVOLATILES
                                                 NONHALOGENATED VOLATILES
                                                 NONVOLATILE  METALS
                                                 ORGANIC CORROSIVES
                                                 OXIDIZERS
                                                 PCBs
                                                 PESTICIDES
                                                 REDUCERS
                                                 VOLATILE METALS

                                                 INORGANIC CORROSIVES
                                                 OXIDIZERS
                                                 HALOGENATED  NONVOLATILES
                                                 HALOGENATED  VOLATILES
                                                 NONVOLATILE  METALS
                                                 ORGANIC CYANIDES
                                                 INORGANIC CYANIDES

                                                 NOT SPECIFIED
                                                                                      DIOXINS/FURANS
                                                                                      HALOGENATED NONVOLATILES
                                                                                      HALOGENATED VOLATILES
                                                                                      INORGANIC CORROSIVES
                                                                                      INORGANIC CYANIDES
                                                                                      NONVOLATILE METALS
                                                                                      ORGANIC CYANIDES
                                                                                      OXIDIZERS
                                                                                      PCBs
                                                                                      PESTICIDES
                                                                                      REDUCERS
                                                                                      VOLATILE METALS
                                                                                                                           NO
                                                                                                                                     NO
                                                                                                                           YES       YES
                                                                                                                           INP       INP
                                                                                                                           INP       INP
                                                                II- 68

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH
                                                                                                                            SCALE
                                                                                                      PILOT
                                                                                                      SCALE
CATALYSIS
(continued)
GENERAL PHYSICS CORPORATION
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUID
                                                       NONVOLATILE METALS
                                                       ORGANIC CORROSIVES
                                                       VOLATILE METALS
                                                                                                                            YES
                                                                                                                                      NO
                                I IT RESEARCH INST
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUID
                                                       DIOXINS/FURANS
                                                       HALOGENATED NONVOLATILES
                                                       HALOGENATED VOLATILES
                                                       RADIOACTIVE MATERIALS
                                                       NONVOLATILE METALS
                                                       NONHALOGENATED NONVOLATILES
                                                       PCBs
                                                       PESTICIDES
                                                       VOLATILE METALS
                                                       ORGANIC CYANIDES
                                                       ORGANIC CORROSIVES
                                                       OXIDIZERS
                                                                                                                            YES       YES
                                IT  CORPORATION
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUID
                                                                      SOILS
                                                                      SEDIMENTS
                                                       DIOXINS/FURANS
                                                       HALOGENATED  NONVOLATILES
                                                       HALOGENATED  VOLATILES
                                                       NONHALOGENATED  NONVOLATILES
                                                       NONHALOGENATED  VOLATILES
                                                       NONVOLATILE  METALS
                                                       OXIDIZERS
                                                       PESTICIDES
                                                                                                                            YES       YES
                               KSE,  INC.
                                     AQUEOUS MEDIA
                                     ORGAINC LIQUID
HALOGENATED VOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
VOLATILE METALS
                                                                                            YES       YES
                               MAECORP, INC.
                               O'BRIEN AND GERE ENGINEERS,  INC.
                                     AQUEOUS MEDIA    NOT  SPECIFIED
                                     ORGANIC LIQUID

                                     AQUEOUS MEDIA    DIOXINS/FURANS
                                     ORGANIC LIQUID
                                     SEDIMENTS
                                 11-69
                                     YES        YES
                                     YES        YES

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED        CONTAMINANT  GROUPS
                                                      BENCH     PILOT
                                                      SCALE     SCALE
CATALYSIS
(continued)
O'BRIEN AND GERE ENGINEERS,  INC.
(continued)
                                RMT,  INC.
SLUDGES
SOILS

AQUEOUS MEDIA    NOT SPECIFIED
ORGANIC LIQUID
                                                                                                                           YES       YES
                                WOODWARD CLYDE CONSULTANTS
                                                                     SEDIMENTS
                                                                     SLUDGES
                                                                     SOILS
                                                                     OTHER SOLIDS
                                                                                      NOT SPECIFIED
                                                                                                                           YES       YES
CENTRIFUGATION
AAA CSI
                               ROY F. WESTON, INC.
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
                 HALOGENATED NONVOLATILES
                 HALOGENATED VOLATILES
                 INORGANIC CORROSIVES
                 NONHALOGENATED NONVOLATILES
                 NONHALOGENATED VOLATILES
                 NONVOLATILE METALS
                 ORGANIC CORROSIVES
                 OXIDIZERS
                 PCBs
                 PESTICIDES
                 REDUCERS
                 VOLATILE METALS

                 PESTICIDES
                 DIOXINS/FURANS
                 NONVOLATILE METALS
                 INORGANIC CYANIDES
                 INORGANIC CORROSIVES
                 ORGANIC CYANIDES
                 ORGANIC CORROSIVES
                 HALOGENATED NONVOLATILES
                 HALOGENATED VOLATILES
                 NONHALOGENATED NONVOLATILES
                 NONHALOGENATED VOLATILES
                 PCBs
                                                                                                                           NO
                                                                                                                                     NO
                                                                                                                           YES
                                                                                                                                     YES
                                                                11-70

-------
TREATMENT TECHNOLOGY
                 TABLE # 2 (CONTINUED)

COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                             BENCH
                                                                                                                             SCALE
                                                                                                PILOT
                                                                                                SCALE
CHEMICAL DECHLORINATION
                                COMBUSTION ENGINEERING,  INC.

                                COMBUSTION ENGINEERING,  INC.
                                AQUEOUS MEDIA    NOT SPECIFIED

                                SEDIMENTS        NOT SPECIFIED
                                SLUDGES
                                SOILS
                                OTHER SOLIDS
 YES
YES
           YES
          YES
CHEMICAL EXTRACTION
                                AAA CSI
                                APPLIED SURFACE TECHNOLOGY
                                CAA  BIOREMEDIATION  SYSTEMS
                                                                      SEDIMENTS
                                                                      SLUDGES
                                                                      SOILS
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUIDS
                                                                      SLUDGES
                                                                      SOILS
                                                                      SEDIMENTS
                                                                      SLUDGES
                                                                      SOILS
                                                 HALOGENATED NONVOLATILES
                                                 HALOGENATED VOLATILES
                                                 INORGANIC CORROSIVES
                                                 NONHALOGENATED  NONVOLATILES
                                                 NONHALOGENATED  VOLATILES
                                                 NONVOLATILE METALS
                                                 ORGANIC CORROSIVES
                                                 OXIDIZERS
                                                 PCBs
                                                 PESTICIDES
                                                 REDUCERS
                                                 VOLATILE METALS

                                                 INORGANIC CORROSIVES
                                                 OXIDIZERS
                                                 HALOGENATED NONVOLATILES
                                                 HALOGENATED VOLATILES
                                                 NONVOLATILE METALS
                                                 ORGANIC CYANIDES
                                                 INORGANIC CYANIDES

                                                 HALOGENATED NONVOLATILES
                                                 HALOGENATED VOLATILES
                                                 NONHALOGENATED  NONVOLATILES
                                                 NONHALOGENATED  VOLATILES
                                                 PCBs
                                                 PESTICIDES
                                                                                      NO
                                                                                                NO
YES
          YES
YES
                                                                                                                                      NO
                                                                 11-71

-------
TREATMENT TECHNOLOGY
                 TABLE # 2 (CONTINUED)

COMPANY NAME                    MEDIA TREATED
                                                                                          CONTAMINANT  GROUPS
                                                                                                                           BENCH
                                                                                                                           SCALE
                                               PILOT
                                               SCALE
CHEMICAL EXTRACTION
(continued)
                                CHEMENCO,  INC.
                                COMBUSTION  ENGINEERING,  INC.
                                SOILS
                                SLUDGES
                                SEDIMENTS
                                OTHER SOLIDS

                                SLUDGES
                                SOILS
                                                                                      NOT SPECIFIED
                                                                                                                            INP
                                                                                                                                      INP
                                                                                      NOT SPECIFIED
                                                                                                                           YES       YES
                                D D ENVIRONMENTAL
                                SEDIMENTS        HALOGENATED NONVOLATILES
                                SLUDGES          HALOGENATED VOLATILES
                                SOILS            NONHALOGENATED  NONVOLATILES
                                                 NONHALOGENATED  VOLATILES
                                                 NONVOLATILE METALS
                                                                                                                           YES       YES
                                DETOX,  INC.
                                E M & C ENGINEERING ASSOCIATES
                                AQUEOUS  MEDIA
                                ORGANIC  LIQUID
                                SEDIMENTS
                                SLUDGES
                                SOILS
                                SLUDGES
                                OTHER SOLIDS
                                SOILS
HALOGENATED VOLATILES
HALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
PESTICIDES
DIOXINS/FURANS
ORGANIC CYANIDES
ORGANIC CORROSIVES
VOLATILE METALS
NONVOLATILE METALS

DIOXINS/FURANS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONVOLATILE METALS
ORGANIC CYANIDES
OXIDIZERS
PCBs
PESTICIDES
REDUCERS
                                                                                                                           YES
                                                                                                                                     YES
                                                                                      INP
                                                                                                INP
                                                                H- 72

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH
                                                                                                                            SCALE
                                                PILOT
                                                SCALE
CHEMICAL EXTRACTION
(continued)
E M & C ENGINEERING ASSOCIATES
(continued)

EARTH TECHNOLOGY CORP.
                                ENRICO TECHNOLOGIES
                                ENSOTECH,  INC.
                               ENURIGHT ENVIRONMENTAL,  INC.
                                I IT RESEARCH  INST
                                      OTHER SOLIDS
                                      SEDIMENTS
                                      SLUDGES
                                      SOILS

                                      SLUDGES
                                      SOILS

                                      OTHER SOLIDS
                                      SEDIMENTS
                                      SLUDGES
                                      SOILS
VOLATILE METALS

NOT SPECIFIED
                                                                                                                            YES
                                                                                                                                      NO
                                                                                       NOT SPECIFIED
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
OXIDIZERS
REDUCERS

RADIOACTIVE MATERIALS
                                                                                                                            YES
                                                                                                                                      INP
                                                                                                                            YES       YES
                                      SEDIMENTS
                                      SLUDGES
                                      SOILS
                                                                     SLUDGES          DIOXINS/FURANS
                                                                     OTHER SOLIDS     HALOGENATED NONVOLATILES
                                                                     SOILS            HALOGENATED VOLATILES
                                                                                      OXIDIZERS
                                                                                      NONVOLATILE METALS
                                                                                      NONHALOGENATED NONVOLATILES
                                                                                      PCBs
                                                                                      PESTICIDES
                                                                                      VOLATILE METALS
                                                                                      ORGANIC CYANIDES
                                                                                      ORGANIC CORROSIVES
                                                                                      RADIOACTIVE MATERIALS
                                                                                                                            YES
                                                                                                                            INP
                                                                                                                                      NO
                                                                                                                                      INP
                                                                II- 73

-------
TREATMENT TECHNOLOGY
                       TABLE  # 2  (CONTINUED)

      COMPANY NAME                   MEDIA TREATED        CONTAMINANT  GROUPS
                                                                                                                           BENCH     PILOT
                                                                                                                           SCALE     SCALE
CHEMICAL EXTRACTION
(continued)
INTERNATIONAL  PROCESS RESEARCH CORP
                                IT CORPORATION
                                     SOILS
                                                                     ORGANIC LIQUID
                                                                     SOILS
                                                                     SLUDGES
                                                                     OTHER SOLIDS
                                                       HALOGENATED  NONVOLATILES
                                                       HALOGENATED  VOLATILES
                                                       INORGANIC  CORROSIVES
                                                       INORGANIC  CYANIDES
                                                       NONHALOGENATED VOLATILES
                                                       NONVOLATILE  METALS
                                                       ORGANIC CORROSIVES
                                                       ORGANIC CYANIDES
                                                       OXIDIZERS
                                                       REDUCERS

                                                       DIOXINS/FURANS
                                                       HALOGENATED  NONVOLATILES
                                                       INORGANIC  CYANIDES
                                                       NONHALOGENATED NONVOLATILES
                                                       NONVOLATILE  METALS
                                                       ORGANIC CYANIDES
                                                                                                                           YES
                                                                                                                                     YES
                                                                                                                           YES       YES
                               KSE, INC.
                               MAECORP, INC.
                               MCNAMEE ADVANCED TECHNOLOGY. INC.
                                     SOILS
                                     SLUDGES
                                     OTHER SOLIDS
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS

                                     SLUDGES
                                     SOILS
HALOGENATED VOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
VOLATILE METALS

NONVOLATILE METALS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
OXIDIZERS
                                                                                                                           YES       YES
                                                                                           YES       YES
YES       YES
                                                                II-  74

-------
                        TABLE  # 2  (CONTINUED)
TREATMENT TECHNOLOGY
CHEMICAL EXTRACTION
(continued)
COMPANY NAME
MCNAMEE ADVANCED TECHNOLOGY, INC.
(continued)
MEDIA TREATED CONTAMINANT GROUPS
REDUCERS
VOLATILE METALS
BENCH PILOT
SCALE SCALE

OHM CORPORATION
                                      SOILS
                                      ORGANIC LIQUID
                                      OTHER SOLIDS
                 DIOXINS/FURANS
                 HALOGENATED NONVOLATILES
                 HALOGENATED VOLATILES
                 NONHALOGENATED VOLATILES
                 NONVOLATILE METALS
                 NONHALOGENATED NONVOLATILES
                 PCBs
                 PESTICIDES
                 VOLATILE METALS
                                                                                            YES
                                                                                                      YES
PITTSBURGH MIN&ENV.TECH., INC.
SEDIMENTS
SLUDGES
SOILS
NONVOLATILE METALS
VOLATILE METALS
                                                      YES       YES
RADIAN CORPORATION
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                 HALOGENATED NONVOLATILES
                 HALOGENATED VOLATILES
                 NONHALOGENATED NONVOLATILES
                 NONHALOGENATED VOLATILES
                 NONVOLATILE METALS
                 ORGANIC  CORROSIVES
                 ORGANIC  CYANIDES
                 OXIDIZERS
                 PCBs
                 PESTICIDES
                 REDUCERS
                 VOLATILE METALS
                                                                                            YES       YES
REMEDIATION TECHNOLOGIES
                                      SEDIMENTS
                                      SOILS
                                      SLUDGES
                                 II- 75
                 HALOGENATED  VOLATILES
                 HALOGENATED  NONVOLATILES
                 INORGANIC CORROSIVES
                 INORGANIC CYANIDES
                 NONHALOGENATED VOLATILES
                 NONHALOGENATED NONVOLATILES
                 NONVOLATILE  METALS
                                                                                            YES       NO

-------
TREATMENT TECHNOLOGY
                       TABLE # 2  (CONTINUED)

      COMPANY NAME                    MEDIA TREATED        CONTAMINANT GROUPS
                                                                                                                           BENCH
                                                                                                                           SCALE
                                                                                                      PILOT
                                                                                                      SCALE
CHEMICAL EXTRACTION
(continued)
REMEDIATION TECHNOLOGIES
(continued)

RMC ENV & ANALYTICAL LABORATORIES
                 VOLATILE METALS

SEDIMENTS        DIOXINS/FURANS
SLUDGES          HALOGENATED NONVOLATILES
SOILS            HALOGENATED VOLATILES
                 NONHALOGENATED NONVOLATILES
                 NONHALOGENATED VOLATILES
                 NONVOLATILE METALS
                 ORGANIC CORROSIVES
                 ORGANIC CYANIDES
                 PCBs
                 PESTICIDES
                                                                                                                           INP
                                                                                                                                     INP
                               RMT, INC.
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
                                                                                      NOT SPECIFIED
                                                                                                                           YES       YES
                               ROY F. UESTON. INC.
                                     SEDIMENTS        PESTICIDES
                                     SLUDGES          DIOXINS/FURANS
                                     SOILS            NONVOLATILE METALS
                                                      INORGANIC CYANIDES
                                                      INORGANIC CORROSIVES
                                                      ORGANIC CYANIDES
                                                      ORGANIC CORROSIVES
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      NONHALOGENATED NONVOLATILES
                                                      NONHALOGENATED VOLATILES
                                                      PCBs
                                                                                                                           YES       NO
                               VERSAR INC.
                                                                    AQUEOUS MEDIA
                                                                    ORGANIC LIQUID
                                                                11-76
                                                      DIOXINS/FURANS
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      INORGANIC CORROSIVES
                                                      INORGANIC CYANIDES
                                                      NONHALOGENATED NONVOLATILES
                                                      NONHALOGENATED VOLATILES
                                                                                                                           YES       YES

-------
 TREATMENT  TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH
                                                                                                                            SCALE
                                                                                                      PILOT
                                                                                                      SCALE
 CHEMICAL EXTRACTION
 (continued)
VERSAR INC.
(continued)
                                VERSAR INC.
                                WASTE STREAM TECHNOLOGY,  INC.
                                                                      SEDIMENTS
                                                                      SLUDGES
                                                                      SOILS
                                     OTHER SOLIDS
                                     SLUDGES
                                     SOILS
                                     SEDIMENTS
NONVOLATILE METALS
OXIDIZERS
REDUCERS
VOLATILE METALS

HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
OXIDIZERS
REDUCERS
VOLATILE METALS

NOT SPECIFIED
                                                                                            YES
                                                                                                      YES
                                     YES
                                               NO
CHEMICAL OXIDATION
                                AAA CSI
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUID
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      INORGANIC CORROSIVES
                                                      NONHALOGENATED NONVOLATILES
                                                      NONHALOGENATED VOLATILES
                                                      NONVOLATILE METALS
                                                      ORGANIC CORROSIVES
                                                      OXIDIZERS
                                                      PCBs
                                                      PESTICIDES
                                                      REDUCERS
                                                      VOLATILE METALS
                                                                                           NO
                                               NO
                               ANDCO ENVIRONMENTAL PROCESSES,  INC.   NOT SPECIFIED    NOT SPECIFIED

                                                                 11-77
                                                                                           YES
                                                                                                     NO

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT  GROUPS
                                                                                                                           BENCH
                                                                                                                           SCALE
                                                                                                      PILOT
                                                                                                      SCALE
CHEMICAL OXIDATION
(continued)
APPLIED SURFACE TECHNOLOGY
                                CAMBRIDGE SCIENTIFIC, INC.

                                DETOX. INC.
                               DIVERSIFIED ENGINEERING, INC.

                               E M & C ENGINEERING ASSOCIATES
                               EMSOTECH, INC.
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUIDS
                                      SLUDGES
                                      SOILS
                                      SOILS

                                      AQUEOUS  MEDIA
                                      ORGANIC  LIQUID
                                      SEDIMENTS
                                      SLUDGES
                                      SOILS
                                     AQUEOUS MEDIA

                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                                     ORGANIC LIQUID
                                11-78
 INORGANIC CORROSIVES
OXIDIZERS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CYANIDES
INORGANIC CYANIDES

NOT SPECIFIED

HALOGENATED VOLATILES
HALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
PESTICIDES
DIOXINS/FURANS
ORGANIC CYANIDES
ORGANIC CORROSIVES
VOLATILE METALS
NONVOLATILE METALS

NOT SPECIFIED

DIOXINS/FURANS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONVOLATILE METALS
ORGANIC CYANIDES
OXIDIZERS
PCBs
PESTICIDES
REDUCERS
VOLATILE METALS

HALOGENATED NONVOLATILES
                                                                                            YES
                                                                                                      YES
YES

YES
NO

YES
YES

INP
IMP

INP
                                                                                                                           YES
                                                                                                                                     YES

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH     PILOT
                                                                                                                            SCALE     SCALE
CHEMICAL OXIDATION
(continued)
ENSOTECH, INC.
(continued)
                                                                      AQUEOUS MEDIA
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
OXIDIZERS
REDUCERS
                                ENVIRONMENTAL RESOURCE ASSOCIATES
                                                                      NOT SPECIFIED
                                                                                       HALOGENATED NONVOLATILES
                                                                                       HALOGENATED VOLATILES
                                                                                       INORGANIC CORROSIVES
                                                                                       NONHALOGENATED NONVOLATILES
                                                                                       NONHALOGENATED VOLATILES
                                                                                       NONVOLATILE METALS
                                                                                                                            YES       NO
                                ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                                                      AQUEOUS MEDIA
                                                       HALOGENATED  NONVOLATILES
                                                       HALOGENATED  VOLATILES
                                                       NONHALOGENATED  NONVOLATILES
                                                       NONHALOGENATED  VOLATILES
                                                       NONVOLATILE  METALS
                                                                                                                            INP       INP
                                ENURIGHT  ENVIRONMENTAL,  INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                                                       RADIOACTIVE MATERIALS
                                                                                            YES       YES
                                GENERAL  PHYSICS  CORPORATION
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUID
                                                                      SEDIMENTS
                                                                      SLUDGES
                                                                      SOILS
                                                       HALOGENATED  NONVOLATILES
                                                       HALOGENATED  VOLATILES
                                                       NONHALOGENATED NONVOLATILES
                                                       NONHALOGENATED VOLATILES
                                                       ORGANIC CORROSIVES
                                                       ORGANIC CYANIDES
                                                       REDUCERS
                                                                                                                            YES       NO
                               GROUNDWATER &  ENVIRONMENTAL  SERVICE
                                                                 II
                                                                     AQUEOUS MEDIA
                                                                     SEDIMENTS
                                                                     SLUDGES
                                                                     SOILS
                                                                    79
                                                                                      NOT  SPECIFIED
                                                                                                                            INP       INP

-------
TREATMENT TECHNOLOGY
                 TABLE # 2 (CONTINUED)

COMPANY NAME                    MEDIA TREATED       CONTAMINANT  GROUPS
                                                                                                                           BENCH
                                                                                                                           SCALE
                                                                                                PILOT
                                                                                                SCALE
CHEMICAL OXIDATION
(continued)
                                HUNTER SERVICES, INC.
                                AQUEOUS MEDIA
                                ORGANIC LIQUID
                               HUNTER SERVICES, INC.
                               AQUEOUS MEDIA
                               ORGANIC LIQUID
                               I IT RESEARCH  INST
                                                                    AQUEOUS MEDIA
                                                                    ORGANIC LIQUID
DIOXINS/FURANS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC  CORROSIVES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
PCBs
PESTICIDES
VOLATILE METALS

DIOXINS/FURANS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
PCBs
PESTICIDES
VOLATILE METALS

DIOXINS/FURANS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
RADIOACTIVE MATERIALS
NONVOLATILE METALS
NONHALOGENATED NONVOLATILES
PCBs
PESTICIDES
VOLATILE METALS
ORGANIC CYANIDES
YES
          YES
YES       YES
                                                                                     YES        INP
                                                                11-80

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT  GROUPS
                                                                                                                            BENCH
                                                                                                                            SCALE
                                               PILOT
                                               SCALE
CHEMICAL OXIDATION
(continued)
I IT RESEARCH INST
(continued)
ORGANIC CORROSIVES
OXIDIZERS
                                INTERNATIONAL  PROCESS  RESEARCH  CORP
                                      AQUEOUS ME IDA
                                      ORGANIC LIQUID
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
OXIDIZERS
REDUCERS
                                                                                                                           YES
                                                                                                                                     YES
                                IT CORPORATION
                                     AQUEOUS MEDIA
                                     SOILS
                                     OTHER SOLIDS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CYANIDES
OXIDIZERS
REDUCERS
VOLATILE METALS
                                                                                                                           YES
                                                                                                                                     YES
                               JACOBS ENGINEERING GROUP, INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
NONHALOGENATED VOLATILES
ORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
                                                                                                                           YES       NO
                               MAECORP. INC.
                                     AQUEOUS MEDIA    NOT SPECIFIED
                                     ORGANIC LIQUID
                                                                                                                           YES       YES
                               MCNAMEE ADVANCED TECHNOLOGY, INC.
                                     AQUEOUS MEDIA
                                     SLUDGES
                                11-81
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
                                                                                           YES       YES

-------
TREATHENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED
                                                                                          CONTAMINANT GROUPS
                                                                                                                            BENCH
                                                                                                                            SCALE
                                                                                                      PILOT
                                                                                                      SCALE
CHEMICAL OXIDATION
(continued)
MCNAMEE ADVANCED TECHNOLOGY. INC.
(continued)
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
OXIDIZERS
REDUCERS
VOLATILE METALS
                               O'BRIEN AND GERE ENGINEERS,  INC.
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
ORGANIC CYANIDES
REDUCERS
                                                                                            YES
                                                                                                                                      YES
                               OHM CORPORATION
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                     SLUDGES
                                                       DIOXINS/FURANS
                                                       HALOGENATED  NONVOLATILES
                                                       HALOGENATED  VOLATILES
                                                       NONHALOGENATED VOLATILES
                                                       NONVOLATILE  METALS
                                                       NONHALOGENATED NONVOLATILES
                                                       PCBs
                                                       PESTICIDES
                                                       VOLATILE METALS
                                     YES
                                                                                                                                     YES
                               RADIAN CORPORATION
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                11-82
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      NONHALOGENATED NONVOLATILES
                                                      NONHALOGENATED VOLATILES
                                                      NONVOLATILE METALS
                                                      ORGANIC CORROSIVES
                                                      ORGANIC CYANIDES
                                                      OXIDIZERS
                                                      PCBs
                                                      PESTICIDES
                                                                                            YES
                                                                                                                                     YES

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH     PILOT
                                                                                                                            SCALE     SCALE
CHEMICAL OXIDATION
(continued)
RADIAN CORPORATION
(continued)
REDUCERS
VOLATILE METALS
                                RIVER OAK ASSOCIATES
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUID
                                                       HALOGENATED  NONVOLATILES
                                                       HALOGENATED  VOLATILES
                                                       NONHALOGENATED  NONVOLATILES
                                                       NONHALOGENATED  VOLATILES
                                     YES        NO
                                RMT,  INC.
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                                                                                       NOT  SPECIFIED
                                                                                                                            YES
                                                                                                                                      YES
                                RNK ENVIRONMENTAL.  INC.
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
NOT SPECIFIED
                                                                                           YES
                                                                                                      NO
                                RODNEY  KINNEY ASSOCIATES
                                ROY  F. UESTON,  INC.
                                                                      AQUEOUS MEDIA    OXIDIZERS
                                                                      ORGANIC LIQUID   PCBs
                                                                                      REDUCERS
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
PESTICIDES
DIOXINS/FURANS
NONVOLATILE METALS
INORGANIC CYANIDES
ORGANIC CYANIDES
INORGANIC CORROSIVES
ORGANIC CORROSIVES
HALOGENATED VOLATILES
HALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
PCBs
                                                                                                                            INP
                                                                                                                           YES
                                                                                                                                      INP
                                                                                                                                      NO
                               VERSAR INC.
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                11-83
                                                      DIOXINS/FURANS
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      INORGANIC CORROSIVES
                                                      INORGANIC CYANIDES
                                                      NONHALOGENATED NONVOLATILES
                                                                                                                           YES
                                                                                                                                      YES

-------
TREATMENT TECHNOLOGY
                       TABLE # 2  (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT  GROUPS
                                                                                                                            BENCH     PILOT
                                                                                                                            SCALE     SCALE
CHEMICAL OXIDATION
(continued)
VERSAR INC.
(continued)
                                WESTERN  RESEARCH  INSTITUTE
                                WOODWARD  CLYDE CONSULTANTS
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                     SLUDGES
                                                                     SEDIMENTS
                                                                     SLUDGES
                                                                     SOILS
                                                                     OTHER SOLIDS
NONHALOGENATED VOLATILES
NONVOLATILE METALS
OXIDIZERS
REDUCERS
VOLATILE METALS

INORGANIC CYANIDES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CYANIDES

NOT SPECIFIED
                                                                                                                            INP        INP
                                                                                            YES       YES
                                YEC  INC
                                                                     NOT SPECIFIED    NOT SPECIFIED
                                                                                                                            YES        NO
CHEMICAL PRECIPITATION
                                AAA CSI
                               AEA TECHNOLOGY
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                     SEDIMENTS
                                                                     SLUDGES
                                                                     SOILS
                                                                II- 84
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      INORGANIC CORROSIVES
                                                      NONHALOGENATED NONVOLATILES
                                                      NONHALOGENATED VOLATILES
                                                      NONVOLATILE METALS
                                                      ORGANIC CORROSIVES
                                                      OXIDIZERS
                                                      PCBs
                                                      PESTICIDES
                                                      REDUCERS
                                                      VOLATILE METALS

                                                      RADIOACTIVE MATERIALS
                                                                                                                           NO
                                                                                                                                      NO
                                                                                                                           YES
                                                                                                                                      YES

-------
TREATMENT TECHNOLOGY
                 TABLE # 2 (CONTINUED)

COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH     PILOT
                                                                                                                            SCALE     SCALE
CHEMICAL PRECIPITATION
(continued)
                                ANDCO ENVIRONMENTAL PROCESSES, INC.   NOT SPECIFIED    NONVOLATILE METALS
                                APPLIED SURFACE TECHNOLOGY
                                CHEHENCO,  INC.
                                COMBUSTION  ENGINEERING,  INC.
                               DETOX,  INC.
                               DIVERSIFIED ENGINEERING,  INC.
                               E M & C ENGINEERING ASSOCIATES
                                AQUEOUS MEDIA
                                ORGANIC LIQUIDS
                                SLUDGES
                                SOILS
                                AQUEOUS MEDIA
                                ORGANIC LIQUID

                                AQUEOUS MEDIA
                                ORGANIC LIQUID

                                AQUEOUS MEDIA
                                ORGANIC LIQUID
                                SEDIMENTS
                                SLUDGES
                                SOILS
                               AQUEOUS MEDIA

                               AQUEOUS MEDIA
                               ORGANIC LIQUID
                                                                                       INORGANIC CORROSIVES
                                                                                       OXIDIZERS
                                                                                       HALOGENATED NONVOLATILES
                                                                                       HALOGENATED VOLATILES
                                                                                       NONVOLATILE METALS
                                                                                       ORGANIC CYANIDES
                                                                                       INORGANIC CYANIDES

                                                                                       NOT SPECIFIED
                                                                                       NOT SPECIFIED
HALOGENATED VOLATILES
HALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
PESTICIDES
DIOXINS/FURANS
ORGANIC CYANIDES
ORGANIC CORROSIVES
VOLATILE METALS
NONVOLATILE METALS

NOT SPECIFIED

DIOXINS/FURANS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONVOLATILE METALS
ORGANIC CYANIDES
                                                                                      YES       NO
                                                                                                                            YES       YES
                                      INP        INP
                                                                                                                            YES       YES
                                                                                                                            YES       YES
YES       INP

INP       INP
                                                                11-85

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                           BENCH     PILOT
                                                                                                                           SCALE     SCALE
CHEMICAL PRECIPITATION
(continued)
E M & C ENGINEERING ASSOCIATES
(continued)
OXIDIZERS
PCBs
PESTICIDES
RUDUCERS
VOLATILE METALS
                               EARTH TECHNOLOGY CORP.
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                      NOT SPECIFIED
                                                                                                                           YES       NO
                               ENSOTECH. INC.
                                     ORGANIC LIQUID
                                     AQUEOUS MEDIA
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NOMHALOGENATED VOLATILES
NONVOLATILE METALS
OXIDIZERS
REDUCERS
                                                                                                                           YES       YES
                               ENVIRONMENTAL RESOURCE ASSOCIATES
                                     AQUEOUS MEDIA
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
                                                                                                                           YES       YES
                               ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                                                     AQUEOUS MEDIA
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      NONHALOGENATED NONVOLATILES
                                                      NONHALOGENATED VOLATILES
                                                      NONVOLATILE METALS
                                                                                                                           INP       INP
                               ENURIGHT ENVIRONMENTAL, INC.
                                     AQUEOUS MEDIA    RADIOACTIVE MATERIALS
                                     ORGANIC LIQUID
                                                                                                                           YES       YES
                               GENERAL PHYSICS CORPORATION
                                                                     AQUEOUS MEDIA    NONVOLATILE  METALS
                                                                     ORGANIC LIQUID    ORGANIC  CORROSIVES
                                                                II-  86
                                                                                                                           YES       YES

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH
                                                                                                                            SCALE
                                                                                                      PILOT
                                                                                                      SCALE
CHEMICAL PRECIPITATION
(continued)
GENERAL PHYSICS CORPORATION
(continued)
                                GROUNDUATER & ENVIRONMENTAL SERVICE
                                                                      AQUEOUS  MEDIA
                                                                      SEDIMENTS
                                                                      SLUDGES
                                                                      soils
 ORGANIC  CYANIDES
 VOLATILE METALS

 NOT  SPECIFIED
                                                                                                                            1NP
                                                                                                      INP
                                HARMON  ENVIRONMENTAL  SERVICES,  INC.    SLUDGES
                                HUNTER  SERVICES,  INC.
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                               HUNTER SERVICES,  INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                               I IT RESEARCH INST
                                                                     AQUEOUS MEDIA
                                                                11-87
NOT SPECIFIED

DIOXINS/FURANS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
PCBs
PESTICIDES
VOLATILE METALS

DIOXINS/FURANS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
PCBs
PESTICIDES
VOLATILE METALS

DIOXINS/FURANS
YES

YES
YES

YES
YES
          YES
                                                                                            YES
                                                                                                      INP

-------
TREATMENT TECHNOLOGY
                       TABLE  #  2  (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                           BENCH     PILOT
                                                                                                                           SCALE     SCALE
CHEMICAL PRECIPITATION
(continued)
I IT RESEARCH  INST
(continued)
ORGANIC LIQUID
                 HALOGENATED NONVOLATILES
                 HALOGENATED VOLATILES
                 RADIOACTIVE MATERIALS
                 NONVOLATILE METALS
                 NONHALOGENATED NONVOLATILES
                 PCBs
                 PESTICIDES
                 VOLATILE METALS
                 ORGANIC CYANIDES
                 ORGANIC CORROSIVES
                 OXIDIZERS
                               INTERNATIONAL PROCESS RESEARCH CORP
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      INORGANIC CORROSIVES
                                                      INORGANIC CYANIDES
                                                      NONHALOGENATED VOLATILES
                                                      NONVOLATILE METALS
                                                      ORGANIC CORROSIVES
                                                      ORGANIC CYANIDES
                                                      OXIDIZERS
                                                      REDUCERS
                                                                                                                           YES       YES
                               IT CORPORATION
                                                                     AQUEOUS MEDIA
                                                                     SLUDGES
                                                                     SOILS
                                                      NONHALOGENATED NONVOLATILES
                                                      NONVOLATILE METALS
                                                      RADIOACTIVE MATERIALS
                                                                                                                           YES       YES
                               JACOBS ENGINEERING GROUP,  INC.
                                     AQUEOUS MEDIA
                                     SLUDGES
                 NONVOLATILE  METALS
                 VOLATILE  METALS
                                                                                           YES       NO
                               KIBER ASSOCIATES,  INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                                                                II-  88
                 HALOGENATED  NONVOLATILES
                 HALOGENATED  VOLATILES
                 NONHALOGENATED NONVOLATILES
                 NONHALOGENATED VOLATILES
                 NONVOLATILE  METALS
                 ORGANIC  CORROSIVES
                 ORGANIC  CYANIDES
                                                                                           YES       NO

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH     PILOT
                                                                                                                            SCALE     SCALE
CHEMICAL PRECIPITATION
(continued)
KIBER ASSOCIATES, INC.
(continued)
 OXIDIZERS
 PCBs
 VOLATILE METALS
                                MAECORP, INC.
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
 NOT SPECIFIED
                                      YES       YES
                                MCNAMEE ADVANCED TECHNOLOGY, INC.
                                      AQUEOUS MEDIA
                                      SLUDGES
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
OXIDIZERS
REDUCERS
VOLATILE METALS
                                                                                                                            YES       YES
                               OHM  CORPORATION
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUID
                                                                      SLUDGES
                                                       DIOXINS/FURANS
                                                       HALOGENATED  NONVOLATILES
                                                       HALOGENATED  VOLATILES
                                                       NONHALOGENATED VOLATILES
                                                       NONVOLATILE  METALS
                                                       NONHALOGENATED NONVOLATILES
                                                       PCBs
                                                       PESTICIDES
                                                       VOLATILE METALS
                                                                                                                            YES       YES
                               PITTSBURGH HIN&ENV.TECH.,  INC.
                                      AQUEOUS MEDIA
NONVOLATILE METALS
VOLATILE METALS
                                                                                            YES       YES
                               QUALTEC,  INC.
                                      AQUEOUS MEDIA
                                      SEDIMENTS
                                      SLUDGES
                                      SOILS
                                 11-89
HALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
INP       INP

-------
                       TABLE # 2 (CONTINUED)
TREATMENT TECHNOLOGY
CHEMICAL PRECIPITATION
(continued)
COMPANY NAME
QUALTEC, INC.
(continued)
MEDIA TREATED CONTAMINANT GROUPS
PCBs
BENCH
SCALE

PILOT
SCALE

RADIAN CORPORATION
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                 HALOGENATED NONVOLATILES
                 HALOGENATED VOLATILES
                 NONHALOGENATED NONVOLATILES
                 NONHALOGENATED VOLATILES
                 NONVOLATILE METALS
                 ORGANIC CORROSIVES
                 ORGANIC CYANIDES
                 OXIDIZERS
                 PCBs
                 PESTICIDES
                 REDUCERS
                 VOLATILE METALS
                                                                                            YES
                                                                                                      YES
RIVER OAK ASSOCIATES
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                 HALOGENATED NONVOLATILES
                 HALOGENATED VOLATILES
                 NONHALOGENATED NONVOLATILES
                 NONHALOGENATED VOLATILES
                                                                                            YES       NO
RMT, INC.
AQUEOUS MEDIA    NOT SPECIFIED
ORGANIC LIQUID
                                                                                            YES
                                                                                                      YES
RNK ENVIRONMENTAL,  INC.
AQUEOUS MEDIA    NOT SPECIFIED
ORGANIC LIQUID
                                                                                            YES
                                                                                                      NO
RODNEY KINNEY ASSOCIATES
                                      AQUEOUS MEDIA    OXIDIZERS
                                      ORGANIC LIQUID    PCBs
                                                       REDUCERS
                                                                                            INP
                                                                                                      INP
ROY f.  UESTON,  INC.
AQUEOUS MEDIA
ORGANIC LIQUID
                                 11-90
PESTICIDES
DIOXINS/FURANS
HALOGENATED VOLATILES
INORGANIC CYANIDES
ORGANIC CYANIDES
INORGANIC CORROSIVES
ORGANIC CORROSIVES
                                                                                            YES
                                                                                                      YES

-------
TREATMENT TECHNOLOGY
                                                       TABLE # 2 (CONTINUED)

                                      COMPANY NAME                    MEDIA TREATED       CONTAMINANT  GROUPS
                                                                                            BENCH     PILOT
                                                                                            SCALE     SCALE
CHEMICAL PRECIPITATION
(continued)
ROY F. UESTON, INC.
(continued)
HALOGENATED VOLATILES
HALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
PCBS
                                TREATEK,  INC.
                                      AQUEOUS MEDIA
                                      SEDIMENTS
                                      SLUDGES
                                      SOILS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
PCBS
PESTICIDES
                                                                                                                            YES
                                                                                                                                      NO
                                VERSAR  INC.
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                      DIOXINS/FURANS
                                                      HALOGENATED  NONVOLATILES
                                                      HALOGENATED  VOLATILES
                                                      INORGANIC  CORROSIVES
                                                      INORGANIC  CYANIDES
                                                      NONHALOGENATED NONVOLATILES
                                                      NONHALOGENATED VOLATILES
                                                      NONVOLATILE  METALS
                                                      OXIDIZERS
                                                      REDUCERS
                                                      VOLATILE METALS
                                                                                                                            YES
                                                                                                                                      YES
                               WESTERN RESEARCH INSTITUTE
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                     SLUDGES
                                                       INORGANIC CYANIDES
                                                       NONHALOGENATED NONVOLATILES
                                                       NONVOLATILE METALS
                                                       ORGANIC CYANIDES
                                                       RADIOACTIVE MATERIALS
                                                                                                                           YES        NO
                               WOODWARD CLYDE CONSULTANTS
                                                                     AQUEOUS MEDIA    NOT SPECIFIED
                                                                     ORGANIC LIQUID
                                                                                                                           YES        YES
                               YEC INC
                                                                     NOT SPECIFIED    NOT SPECIFIED

                                                                 11-91
                                                                                            YES        NO

-------
TREATMENT TECHNOLOGY
                                      COMPANY NAME
                       TABLE  # 2  (CONTINUED)

                                     MEDIA TREATED
                                                                                         CONTAMINANT GROUPS
                                     BENCH     PILOT
                                     SCALE     SCALE
CHEMICAL PRECIPITATION
(continued)
ZENON ENVIRONMENTAL
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
NONHALOGENATED VOLATILES
ORGANIC CORROSIVES
NONHALOGENATED NONVOLATILES
ORGANIC CYANIDES
PCBs
PESTICIDES
                                                                                           YES
                                                                                                     YES
                                ZIHPRO PASSAVANT
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                                      NOT SPECIFIED
                                                                                                                           YES
                                                                                                                                     YES
CHEMICAL REDUCTION
                                AAA CSI
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      INORGANIC CORROSIVES
                                                      NONHALOGENATED NONVOLATILES
                                                      NONHALOGENATED VOLATILES
                                                      NONVOLATILE METALS
                                                      ORGANIC CORROSIVES
                                                      OXIDIZERS
                                                      PCBs
                                                      PESTICIDES
                                                      REDUCERS
                                                      VOLATILE METALS
                                                                                                                           NO
                                                                                                                                     NO
                               DETOX, INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
HALOGENATED VOLATILES
HALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
PESTICIDES
DIOXINS/FURANS
ORGANIC CYANIDES
ORGANIC CORROSIVES
VOLATILE METALS
NONVOLATILE METALS
                                                                                                                           YES
                                                                                                                                     YES
                                                                11-92

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH
                                                                                                                            SCALE
                                                                                                      PILOT
                                                                                                      SCALE
CHEMICAL REDUCTION
(continued)
DIVERSIFIED ENGINEERING, INC.
                                E M & C ENGINEERING ASSOCIATES
                                      AQUEOUS MEDIA

                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                                ENSOTECH,  INC.
                                      ORGANIC  LIQUID
                                      AQUEOUS  MEDIA
                               ENVIRONMENTAL  RESOURCE  ASSOCIATES
                                                                     AQUEOUS MEDIA
                               ENVIRONMENTAL TECHNOLOGY  SOUTHEAST
                                                                     AQUEOUS MEDIA
 NOT  SPECIFIED

 DIOXINS/FURANS
 HALOGENATED  NONVOLATILES
 HALOGENATED  VOLATILES
 INORGANIC  CORROSIVES
 INORGANIC  CYANIDES
 NONVOLATILE  METALS
 ORGANIC CYANIDES
 OXIDIZERS
 PCBs
 PESTICIDES
 REDUCERS
 VOLATILE METALS

 HALOGENATED  NONVOLATILES
 HALOGENATED  VOLATILES
 INORGANIC CORROSIVES
 INORGANIC CYANIDES
 NONHALOGENATED NONVOLATILES
 NONHALOGENATED VOLATILES
 NONVOLATILE  METALS
 OXIDIZERS
 REDUCERS

 HALOGENATED  NONVOLATILES
 HALOGENATED  VOLATILES
 INORGANIC CORROSIVES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS

HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
YES

INP
INP

INP
                                                                                            YES
                                                                                                      YES
                                                                                                                           YES
                                                                                                                                      YES
                                                                                                                            INP
                                                                                                                                      INP
                                                                11-93

-------
TREATMENT TECHNOLOGY
                 TABLE # 2 (CONTINUED)

COMPANY NAME                    MEDIA TREATED       CONTAMINANT  GROUPS
                                                                                                                           BENCH
                                                                                                                           SCALE
                                                PILOT
                                                SCALE
CHEMICAL REDUCTION
(continued)
                                GENERAL PHYSICS CORPORATION
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                     SLUDGES
                                                HALOGENATED NONVOLATILES
                                                HALOGENATED VOLATILES
                                                NONHALOGENATED NONVOLATILES
                                                NONHALOGENATED VOLATILES
                                                OXIDIZERS
                                                                                                                           YES
                                                                                                                                     YES
                               GROUNDWATER & ENVIRONMENTAL SERVICE
                                                                     AQUEOUS MEDIA
                                                                     SEDIMENTS
                                                                     SLUDGES
                                                                     SOILS
                                                                                      NOT SPECIFIED
                                                                                      INP        INP
                                I IT RESEARCH INST
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                DIOXINS/FURANS
                                                HALOGENATED NONVOLATILES
                                                HALOGENATED VOLATILES
                                                RADIOACTIVE MATERIALS
                                                NONVOLATILE METALS
                                                NONHALOGENATED NONVOLATILES
                                                PCBs
                                                PESTICIDES
                                                VOLATILE METALS
                                                ORGANIC CYANIDES
                                                ORGANIC CORROSIVES
                                                OXIDIZERS
                                                                                                                           YES       INP
                               INTERNATIONAL PROCESS RESEARCH CORP
                               AQUEOUS MEDIA
                               ORGANIC LIQUID
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
OXIDIZERS
REDUCERS
                                                                                                                           YES       YES
                               IT CORPORATION
                                                                     AQUEOUS MEDIA
                                                                II-  94
                                                                                      HALOGENATED  VOLATILES
                                                                                                                           YES       YES

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT  GROUPS
                                                                                                                            BENCH     PILOT
                                                                                                                            SCALE     SCALE
CHEMICAL REDUCTION
(continued)
IT CORPORATION
(continued)
ORGANIC LIQUID
                 NONHALOGENATED NONVOLATILES
                 NONVOLATILE METALS
                 PESTICIDES
                                MAECORP,  INC.
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                                                                                      NOT  SPECIFIED
                                                                                                                            YES       YES
                               MCNAMEE  ADVANCED TECHNOLOGY,  INC.
                                      AQUEOUS  MEDIA
                                      SLUDGES
                 HALOGENATED NONVOLATILES
                 HALOGENATED VOLATILES
                 INORGANIC CORROSIVES
                 INORGANIC CYANIDES
                 NONHALOGENATED  NONVOLATILES
                 NONHALOGENATED  VOLATILES
                 NONVOLATILE METALS
                 ORGANIC CORROSIVES
                 ORGANIC CYANIDES
                 OXIDIZERS
                 REDUCERS
                 VOLATILE METALS
                                                                                                                            YES        YES
                               O'BRIEN AND GERE ENGINEERS. INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                 INORGANIC  CORROSIVES
                 OXIDIZERS
                                                                                                                           YES       YES
                               OHM CORPORATION
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                     SLUDGES
                                                      DIOXINS/FURANS
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      NONHALOGENATED VOLATILES
                                                      NONVOLATILE METALS
                                                      NONHALOGENATED NONVOLATILES
                                                      PCBs
                                                      PESTICIDES
                                                      VOLATILE METALS
                                                                                                                           YES       YES
                               RIVER OAK ASSOCIATES
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                11-95
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      NONHALOGENATED NONVOLATILES
                                                      NONHALOGENATED VOLATILES
                                                                                                                           YES       NO

-------
TREATMENT TECHNOLOGY
                                     COMPANY NAME
TABLE # 2 (CONTINUED)

               MEDIA TREATED
                                                                                         CONTAMINANT GROUPS
                                                                                                                           BENCH
                                                                                                                           SCALE
                                               PILOT
                                               SCALE
CHEMICAL REDUCTION
(continued)
                                RMT,  INC.
               AQUEOUS  MEDIA
               ORGANIC  LIQUID
                                NOT  SPECIFIED
                                                                                                                           YES
                                                                                                                                     YES
                                RNK ENVIRONMENTAL, INC.
               AQUEOUS MEDIA
               ORGANIC LIQUID
                                                                                      NOT SPECIFIED
                                                                                                                           YES
                                                                                                                                     NO
                               RODNEY KINNEY ASSOCIATES
                                                                     AQUEOUS MEDIA    OXIDIZERS
                                                                     ORGANIC LIQUID   PCBs
                                                                                      REDUCERS
                                                                                                                           INP
                                                                                                                                     INP
                               ROY F. UESTON. INC.
              AQUEOUS MEDIA
              ORGANIC LIQUID
PESTICIDES
DIOXINS/FURANS
NONVOLATILE METALS
INORGANIC CYANIDES
ORGANIC CYANIDES
INORGANIC CORROSIVES
ORGANIC CORROSIVES
HALOGENATED VOLATILES
HALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
PCBs
                                                                                                                           YES
                                                                                                                                     YES
                               WESTERN RESEARCH INSTITUTE
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                     SLUDGES
                               INORGANIC CYANIDES
                               NONHALOGENATED NONVOLATILES
                               NONVOLATILE METALS
                               ORGANIC CYANIDES
                               RADIOACTIVE MATERIALS
                                                                                                                           YES       NO
                               WOODWARD CLYDE CONSULTANTS
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                                      NOT SPECIFIED
                                                                    YES       YES
                               ZENON ENVIRONMENTAL
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                11-96
                               OXIDIZERS
                               NONHALOGENATED VOLATILES
                               PESTICIDES
                               REDUCERS
                                                                                                                           YES       YES

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT  GROUPS
                                                                                                                            BENCH
                                                                                                                            SCALE
                                                                                                      PILOT
                                                                                                      SCALE
CHEMICAL REDUCTION
(continued)
ZENON ENVIRONMENTAL
(continued)
                                                                                       HALOGENATED NONVOLATILES
                                                                                       HALOGENATED VOLATILES
                                                                                       NONHALOGENATED NONVOLATILES
CHEMICAL TREATMENT
                                AAA CSI
                                                                      SEDIMENTS        HALOGENATED NONVOLATILES
                                                                      SLUDGES          HALOGENATED VOLATILES
                                                                      SOILS            INORGANIC  CORROSIVES
                                                                                       NONHALOGENATED  NONVOLATILES
                                                                                       NONHALOGENATED  VOLATILES
                                                                                       NONVOLATILE METALS
                                                                                       ORGANIC CORROSIVES
                                                                                       OXIDIZERS
                                                                                       PCBs
                                                                                       PESTICIDES
                                                                                       REDUCERS
                                                                                       VOLATILE METALS
                                                                                                                            NO
                                                                                                      NO
                                AEA TECHNOLOGY
                                                                     AQUEOUS  MEDIA
                                                                     ORGANIC  LIQUID
                                                                     SEDIMENTS
                                                                     SLUDGES
                                                                     SOILS
                                                                                       RADIOACTIVE MATERIALS
                                                                                                                            YES
                                                                                                                                      YES
                               APPLIED  SURFACE  TECHNOLOGY
                               CHEMENCO,  INC.
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUIDS
                                                                     SLUDGES
                                                                     SOILS
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
                                     OTHER SOLIDS
                                                      INORGANIC CORROSIVES
                                                      OXIDIZERS
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      NONVOLATILE METALS
                                                      ORGANIC CYANIDES
                                                      INORGANIC CYANIDES

                                                      NOT SPECIFIED
                                                                                                                            YES
          YES
INP
          INP
                                                                11-97

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT  GROUPS
                                                                                                                           BENCH     PILOT
                                                                                                                           SCALE     SCALE
CHEMICAL TREATMENT
(continued)
D D ENVIRONMENTAL
                                                                     SEDIMENTS        HALOGENATED NONVOLATILES
                                                                     SLUDGES          HALOGENATED VOLATILES
                                                                     SOILS            NONHALOGENATED NONVOLATILES
                                                                                      NONHALOGENATED VOLATILES
                                                                                      NONVOLATILE METALS
                                                                                            YES       YES
                               DETOX, INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
HALOGENATED VOLATILES
HALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
PESTICIDES
DIOXINS/FURANS
ORGANIC CYANIDES
ORGANIC CORROSIVES
VOLATILE METALS
NONVOLATILE METALS
                                                                                                                           YES       YES
                               E M & C ENGINEERING ASSOCIATES
                                                                     SLUDGES
                                                                     OTHER SOLIDS
                                                                     SOILS
                                                      DIOXINS/FURANS
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      INORGANIC CORROSIVES
                                                      INORGANIC CYANIDES
                                                      NONVOLATILE METALS
                                                      ORGANIC CYANIDES
                                                      OXIDIZERS
                                                      PCBs
                                                      PESTICIDES
                                                      REDUCERS
                                                      VOLATILE METALS
                                                                                                                           INP       IMP
                               EARTH TECHNOLOGY CORP.
                                                                     OTHER SOLIDS
                                                                     SEDIMENTS
                                                                     SLUDGES
                                                                     SOILS
                                                                                      NOT  SPECIFIED
                                                                                                                           YES       NO
                               ENSOTECH,  INC.
                                     OTHER SOLIDS
                                     SEDIMENTS
                                II- 98
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
                                                                                           YES        YES

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT  GROUPS
                                                                                                                           BENCH      PILOT
                                                                                                                           SCALE      SCALE
CHEMICAL TREATMENT
(continued)
ENSOTECH, INC.
(continued)
                                ENVIRONMENTAL  REMEDIATION,  INC.
                                FORMULA ENVIRONMENTAL COMPANY
                               GENERAL PHYSICS CORPORATION
SLUDGES
SOILS
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                                      SEDIMENTS
                                      SLUDGES
                                      SOILS

                                      AQUEOUS MEDIA
                                      ORGANIC LIQUIDS

                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                                      SOILS
                               HARMON ENVIRONMENTAL SERVICES, INC.   AQUEOUS MEDIA

                               I IT RESEARCH INST                     SLUDGES
                                                                     OTHER SOLIDS
                                                                     SOILS
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
OXIDIZERS
REDUCERS

HALOGENATED VOLATILES
NONHALOGENATED VOLATILES
PCBs
PESTICIDES
                                                                                      NOT SPECIFIED
                NONVOLATILE METALS
                ORGANIC CORROSIVES
                ORGANIC CYANIDES
                VOLATILE METALS

                NOT SPECIFIED

                DIOXINS/FURANS
                HALOGENATED NONVOLATILES
                HALOGENATED VOLATILES
                ASBESTOS
                NONVOLATILE METALS
                NONHALOGENATED NONVOLATILES
                PCBs
                PESTICIDES
                VOLATILE METALS
                ORGANIC CYANIDES
                ORGANIC CORROSIVES
                OXIDIZERS
                                                                                                                           YES
                                                                                                                                     NO
                                                                                                                           YES       NO
                                                                                                                           YES       YES
                                                                                           YES       YES

                                                                                           INP       INP
                                                                II- 99

-------
TREATMENT TECHNOLOGY
                                                       TABLE # 2  (CONTINUED)

                                      COMPANY  NAME                    MEDIA TREATED
                                                          CONTAMINANT  GROUPS
                                     BENCH
                                     SCALE
PILOT
SCALE
CHEMICAL TREATMENT
(continued)
INTERNATIONAL PROCESS RESEARCH CORP
                                      SOILS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
OXIDIZERS
REDUCERS
                                                                                            YES
                                                                                                      YES
                                IT  CORPORATION
                                                                     ORGANIC LIQUID
                                                      PCBs
                                                      DIOXINS/FURANS
                                                                                                                            YES        YES
                               MAECORP,  INC.
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
                                     OTHER SOLIDS
                                                                                      NOT SPECIFIED
                                                                                                                            YES        YES
                               MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                     SLUDGES
                                     SOILS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
OXIDIZERS
REDUCERS
VOLATILE METALS
                                                                                                                            YES        YES
                               OHM CORPORATION
                                                                     SOILS
                                                                     ORGANIC LIQUID
                                                                     OTHER SOLIDS
                                                                11-100
                                                      DIOXINS/FURANS
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      NONHALOGENATED VOLATILES
                                                      NONVOLATILE METALS
                                                                                                                            YES        YES

-------
TREATMENT TECHNOLOGY
                                                       TABLE # 2 (CONTINUED)

                                      COMPANY NAME                    MEDIA TREATED
                                                          CONTAMINANT GROUPS
                                     BENCH     PILOT
                                     SCALE     SCALE
CHEMICAL TREATMENT
(continued)
OHH CORPORATION
(continued)
NONHALOGENATED NONVOLATILES
PCBs
PESTICIDES
VOLATILE METALS
                                RMC ENV & ANALYTICAL LABORATORIES
                                      SEDIMENTS        DIOXINS/FURANS
                                      SLUDGES          HALOGENATED NONVOLATILES
                                      SOILS            HALOGENATED VOLATILES
                                                       NONHALOGENATED NONVOLATILES
                                                       NONHALOGENATED VOLATILES
                                                       ORGANIC  CORROSIVES
                                                       ORGANIC  CYANIDES
                                                       PCBs
                                                       PESTICIDES
                                                       NONVOLATILE METALS
                                                                                                                            YES       YES
                                RMT,  INC.
                                      SEDIMENTS
                                      SLUDGES
                                      SOILS
                                                                                      NOT  SPECIFIED
                                                                                                                            YES        YES
                                ROY  F.  UESTON,  INC.
                                      SEDIMENTS        PESTICIDES
                                      SLUDGES          DIOXINS/FURANS
                                      SOILS            NONVOLATILE METALS
                                                      INORGANIC CYANIDES
                                                      INORGANIC CORROSIVES
                                                      ORGANIC CYANIDES
                                                      ORGANIC CORROSIVES
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      NONHALOGENATED NONVOLATILES
                                                      NONHALOGENATED VOLATILES
                                                      PCBS
                                                                                                                            YES        NO
                               WASTE STREAM TECHNOLOGY,  INC.
                                     OTHER SOLIDS
                                     SLUDGES
                                     SOILS
                                     SEDIMENTS
                                 M-101
                                                                                      NOT SPECIFIED
                                                                                                                           YES        NO

-------
TREATMENT TECHNOLOGY
                 TABLE # 2 (CONTINUED)

COMPANY NAME                    MEDIA TREATED        CONTAMINANT  GROUPS
                                                                                                                           BENCH     PILOT
                                                                                                                           SCALE     SCALE
CHEMICAL TREATMENT
(continued)
                                YEC  INC
                                                                     NOT SPECIFIED    NOT SPECIFIED
                                                                                                                           YES       NO
CHLORI NATION
                               APPLIED SURFACE TECHNOLOGY
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUIDS
                                                                     SLUDGES
                                                                     SOILS
                                                 INORGANIC CORROSIVES
                                                OXIDIZERS
                                                HALOGENATED NONVOLATILES
                                                HALOGENATED VOLATILES
                                                NONVOLATILE METALS
                                                ORGANIC CYANIDES
                                                INORGANIC CYANIDES
                                                                                                                           YES       YES
                               DETOX, INC.
                               E M & C ENGINEERING ASSOCIATES
                               AQUEOUS MEDIA
                               ORGANIC LIQUID
                               SEDIMENTS
                               SLUDGES
                               SOILS
                                                                     AQUEOUS  MEDIA
                                                                     ORGANIC  LIQUID
HALOGENATED VOLATILES
HALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
PESTICIDES
DIOXINS/FURANS
ORGANIC CYANIDES
ORGANIC CORROSIVES
VOLATILE METALS
NONVOLATILE METALS

DIOXINS/FURANS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONVOLATILE METALS
ORGANIC CYANIDES
OXIDIZERS
PCBs
PESTICIDES
REDUCERS
VOLATILE METALS
                                                                                     YES
                                                                                               YES
                                                                                                                           INP
                                                                                                                                     INP
                               EARTH TECHNOLOGY  CORP.
                                                                    AQUEOUS MEDIA
                                                                11-102
                                                NOT SPECIFIED
                                                                                                                           YES
                                                                                                                                     NO

-------
                        TABLE  # 2  (CONTINUED)
TREATMENT TECHNOLOGY
CHLORINAT10N
(continued)
COMPANY NAME
EARTH TECHNOLOGY CORP.
(continued)
MEDIA TREATED CONTAMINANT GROUPS
ORGANIC LIQUID
BENCH
SCALE

PILOT
SCALE

ENSOTECH,  INC.
ORGANIC LIQUID
AQUEOUS MEDIA
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
OXIDIZERS
REDUCERS
YES
          YES
ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                      AQUEOUS MEDIA
                                                       HALOGENATED NONVOLATILES
                                                       HALOGENATED VOLATILES
                                                       NONHALOGENATED NONVOLATILES
                                                       NONHALOGENATED VOLATILES
                                                       NONVOLATILE METALS
                                                                                            INP        INP
GENERAL PHYSICS CORPORATION
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                 NOT SPECIFIED
                                     YES       NO
HUNTER SERVICES, INC.
AQUEOUS MEDIA
ORGANIC LIQUID
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
OXIDIZERS
REDUCERS
                                                      YES       YES
I IT RESEARCH INST
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                 DIOXINS/FURANS
                 HALOGENATED NONVOLATILES
                 HALOGENATED VOLATILES
                 RADIOACTIVE MATERIALS
                 NONVOLATILE METALS
                 NONHALOGENATED NONVOLATILES
                 PCBs
                 PESTICIDES
                 VOLATILE METALS
                 ORGANIC CYANIDES
                 ORGANIC CORROSIVES
                                     YES       INP
                                 11-103

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                   MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                           BENCH
                                                                                                                           SCALE
                                                PILOT
                                                SCALE
CHLORINATION
(continued)
I IT RESEARCH INST
(continued)
 OXIDIZERS
                                INTERNATIONAL  PROCESS  RESEARCH CORP
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      INORGANIC CORROSIVES
                                                      INORGANIC CYANIDES
                                                      NONHALOGENATED VOLATILES
                                                      NONVOLATILE METALS
                                                      ORGANIC CORROSIVES
                                                      ORGAINC CYANIDES
                                                      OXIDIZERS
                                                      REDUCERS
                                                                                                                           YES
                                                                                                                                     YES
                                IT CORPORATION
                                                                     AQUEOUS MEDIA
                                                                     OTHER SOLIDS
                                                      NONHALOGENATED NONVOLATILES
                                                      ORGANIC CYANIDES
                                                      INORGANIC CYANIDES
                                                                                                                           YES       YES
                               MAECORP, INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                                                      NOT SPECIFIED
                                                                                                                           YES       YES
                               MCNAMEE ADVANCED TECHNOLOGY, INC.
                                     AQUEOUS MEDIA
                                     SLUDGES
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
OXIDIZERS
REDUCERS
VOLATILE METALS
                                                                                                                           YES       YES
                               O'BRIEN AND GERE ENGINEERS, INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
ORGANIC CYANIDES
                                                                                           YES
                                                                                                     YES

-------
                        TABLE n 2 (CONTINUED)
TREATMENT TECHNOLOGY
CHLORINATION
(continued)
COMPANY NAME
O'BRIEN AND GERE ENGINEERS, INC.
(continued)
MEDIA TREATED CONTAMINANT GROUPS
REDUCERS
BENCH
SCALE

PILOT
SCALE

 OHM CORPORATION
                                       AQUEOUS MEDIA
                                       ORGANIC LIQUID
                                       SLUDGES
                      DIOXINS/FURANS
                      HALOGENATED NONVOLATILES
                      HALOGENATED VOLATILES
                      NONHALOGENATED VOLATILES
                      NONVOLATILE METALS
                      NONHALOGENATED NONVOLATILES
                      PCBs
                      PESTICIDES
                      VOLATILE METALS
 YES
           YES
RADIAN CORPORATION
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                      HALOGENATED NONVOLATILES
                      HALOGENATED VOLATILES
                      NONHALOGENATED NONVOLATILES
                      NONHALOGENATED VOLATILES
                      NONVOLATILE METALS
                      ORGANIC CORROSIVES
                      ORGANIC CYANIDES
                      OXIDIZERS
                      PCBs
                      PESTICIDES
                      REDUCERS
                      VOLATILE METALS
                                                           YES
                                                                     YES
RIVER OAK ASSOCIATES
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                      INORGANIC CORROSIVES
                      INORGANIC CYANIDES
                      NONVOLATILE METALS
                      OXIDIZERS
                      RADIOACTIVE MATERIALS
                      REDUCERS
                      VOLATILE METALS
                                                           YES       NO
RMT, INC.
     AQUEOUS MEDIA    NOT  SPECIFIED
     ORGANIC LIQUID
YES       YES
RNK ENVIRONMENTAL, INC.
     AQUEOUS MEDIA
11-105
                      NOT  SPECIFIED
                                                                                            YES       NO

-------
 TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH      PILOT
                                                                                                                            SCALE      SCALE
CHLORINATION
(continued)
RNK ENVIRONMENTAL. INC.
(continued)

RODNEY KINNEY ASSOCIATES
                                ROY F.  UESTON,  INC.
                                WESTERN RESEARCH  INSTITUTE
                                YEC  INC
                                ZENON ENVIRONMENTAL
ORGANIC  LIQUID

AQUEOUS  MEDIA    OXIDIZERS
ORGANIC  LIQUID   PCBs
                 REDUCERS
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                 PESTICIDES
                 DIOX1NS/FURANS
                 NONVOLATILE METALS
                 INORGANIC CYANIDES
                 ORGANIC CYANIDES
                 INORGANIC CORROSIVES
                 ORGANIC CORROSIVES
                 HALOGENATED VOLATILES
                 HALOGENATED NONVOLATILES
                 NONHALOGENATED VOLATILES
                 NONHALOGENATED NONVOLATILES
                 PCBs
                                      AQUEOUS MEDIA    INORGANIC CYANIDES
                                      ORGANIC LIQUID   NONHALOGENATED NONVOLATILES

                                      NOT  SPECIFIED    NOT SPECIFIED

                                      AQUEOUS MEDIA    NOT SPECIFIED
                                      ORGANIC LIQUID
                                      SLUDGES
                                                                                                                            INP        INP
                                                                                                                            YES        NO
                                                       INP        INP


                                                       YES        NO

                                                       YES        YES
COAGULATION/FLOCCULATION
HUNTER SERVICES.  INC.
AQUEOUS MEDIA
ORGANIC LIQUID
                                                                11-106
DIOXINS/FURANS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
                                                                                                                            YES       YES

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH
                                                                                                                            SCALE
                                                                                                      PILOT
                                                                                                      SCALE
COAGULATION/FLOCCULATION
(continued)
HUNTER SERVICES. INC.
(continued)
                                HUNTER SERVICES,  INC.
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
 ORGANIC CYANIDES
 PCBS
 PESTICIDES
 VOLATILE METALS

 DIOXINS/FURANS
 HALOGENATED  NONVOLATILES
 HALOGENATED  VOLATILES
 INORGANIC CORROSIVES
 NONHALOGENATED NONVOLATILES
 NONHALOGENATED VOLATILES
 NONVOLATILE  METALS
 ORGANIC  CORROSIVES
 ORGANIC  SYAN IDES
 PCBs
 PESTICIDES
 VOLATILE METALS
YES
          YES
                               MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                      AQUEOUS MEDIA
                                      SLUDGES
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
OXIDIZERS
REDUCERS
VOLATILE METALS
                                     YES
                                               YES
                               ROY F. WESTON, INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                                                                11-107
PESTICIDES
DIOXINS/FURANS
NONVOLATILE METALS
INORGANIC CYANIDES
ORGANIC CYANIDES
INORGANIC CORROSIVES
YES
          YES

-------
TREATMENT TECHNOLOGY
                       TABLE  # 2  (CONTINUED)

      COMPANY NAME                    MEDIA TREATED        CONTAMINANT GROUPS
                                                                                                                            BENCH      PILOT
                                                                                                                            SCALE      SCALE
COAGULATION/FLOCCULATION
(continued)
ROY F.  UESTON,  INC.
(continued)
                                WESTERN RESEARCH  INSTITUTE
                                YEC INC
                                ZIHPRO PASSAVANT
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
ORGANIC CORROSIVES
HALOGEMATED VOLATILES
HALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
PCBs

NONHALOGENATED NONVOLATILES
                                                                                                                            YES
                                                                                                                                     NO
                                     NOT SPECIFIED    NOT SPECIFIED

                                     AQUEOUS MEDIA    NOT SPECIFIED
                                     ORGANIC LIQUID
                                     YES       NO

                                     YES       YES
CRYSTALLIZATION
                                AAA CSI
                                AEA TECHNOLOGY
                                APPLIED SURFACE TECHNOLOGY
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                     NOT SPECIFIED

                                     AQUEOUS MEDIA
                                     ORGANIC LIQUIDS
                                     SLUDGES
                                     SOILS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
OXIDIZERS
PCBs
PESTICIDES
REDUCERS
VOLATILE METALS

NOT SPECIFIED

INORGANIC CORROSIVES
OXIDIZERS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CYANIDES
                                                                                                                           NO
                                                                                                                                     NO
YES

YES
YES

YES
                                                                11-108

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH     PILOT
                                                                                                                            SCALE     SCALE
CRYSTALLIZATION
(continued)
APPLIED SURFACE TECHNOLOGY
(continued)

CHEMENCO, INC.
                                E M & C ENGINEERING ASSOCIATES
AQUEOUS MEDIA
ORGANIC LIQUID

AQUEOUS MEDIA
ORGANIC LIQUID
                                                                                       INORGANIC CYANIDES
                                                                                       NOT SPECIFIED
                                                                                       DIOXINS/FURANS
                                                                                       HALOGENATED NONVOLATILES
                                                                                       HALOGENATED VOLATILES
                                                                                       INORGANIC CORROSIVES
                                                                                       INORGANIC CYANIDES
                                                                                       NONVOLATILE METALS
                                                                                       ORGANIC CYANIDES
                                                                                       OXIDIZERS
                                                                                       PCBs
                                                                                       PESTICIDES
                                                                                       REDUCERS
                                                                                       VOLATILE METALS
                                                                                                                            INP       INP
                                                                                                                            INP       INP
                                I IT RESEARCH  INST
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                               INTERNATIONAL PROCESS RESEARCH CORP
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                       DIOXINS/FURANS
                                                       HALOGENATED NONVOLATILES
                                                       HALOGENATED VOLATILES
                                                       RADIOACTIVE MATERIALS
                                                       NONVOLATILE METALS
                                                       NONHALOGENATED NONVOLATILES
                                                       PCBs
                                                       PESTICIDES
                                                       VOLATILE  METALS
                                                       ORGANIC CYANIDES
                                                       ORGANIC CORROSIVES
                                                       OXIDIZERS

                                                       HALOGENATED NONVOLATILES
                                                       HALOGENATED VOLATILES
                                                       INORGANIC CORROSIVES
                                                       INORGANIC CYANIDES
                                                       NONHALOGENATED  VOLATILES
                                                       NONVOLATILE METALS
                                                                                            YES
                                                                                                                                      INP
                                                      YES
                                                                YES
                                                                11-109

-------
TREATMENT TECHNOLOGY
                       TABLE  # 2  (CONTINUED)

      COMPANY NAME                    MEDIA TREATED
   CONTAMINANT GROUPS
BENCH
SCALE
PILOT
SCALE
CRYSTALLIZATION
(continued)
INTERNATIONAL PROCESS RESEARCH  CORP
(continued)
ORGANIC CORROSIVES
ORGANIC CYANIDES
OXIDIZERS
REDUCERS
                                IT CORPORATION
                               NAECORP, INC.
                                     AQUEOUS MEDIA

                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                                                                                      NOT SPECIFIED
                                                                                      NOT SPECIFIED
                                     YES       YES

                                     YES       YES
                               MCNAHEE ADVANCED TECHNOLOGY, INC.
                                     AQUEOUS MEDIA
                                     SLUDGES
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
OXIDIZERS
REDUCERS
VOLATILE METALS
                                                                                                                           YES       YES
                               OHM CORPORATION
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                     SLUDGES
                                                      DIOXINS/FURANS
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      NONHALOGENATED VOLATILES
                                                      NONVOLATILE METALS
                                                      NONHALOGENATED NONVOLATILES
                                                      PCBs
                                                      PESTICIDES
                                                      VOLATILE METALS
                                                                                                                           YES
                                                                                                                                     YES
                               RIVER OAK ASSOCIATES
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                11-110
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      INORGANIC CORROSIVES
                                                      INORGANIC CYANIDES
                                                                                                                           YES
                                                                                                                                     NO

-------
TREATMENT TECHNOLOGY
                       TABLE » 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                             BENCH      PILOT
                                                                                                                             SCALE      SCALE
CRYSTALLIZATION
(continued)
RIVER OAK ASSOCIATES
(continued)
 NONHALOGENATED NONVOLATILES
 NONVOLATILE METALS
 OXIDIZERS
 RADIOACTIVE MATERIALS
 REDUCERS
 VOLATILE METALS
                                RMT, INC.
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
NOT SPECIFIED
                                      YES       YES
DEUATERING
                                MCNAMEE ADVANCED TECHNOLOGY, INC.
                                      AQUEOUS  MEDIA
                                      SLUDGES
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
OXIDIZERS
REDUCERS
VOLATILE METALS
                                                                                            YES       YES
                                OHM CORPORATION
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                                     SLUDGES
                                                                                       DIOXINS/FURANS
                                                                                       HALOGENATED NONVOLATILES
                                                                                       HALOGENATED VOLATILES
                                                                                       NONHALOGENATED VOLATILES
                                                                                       NONVOLATILE METALS
                                                                                       NONHALOGENATED NONVOLATILES
                                                                                       PCBs
                                                                                       PESTICIDES
                                                                                       VOLATILE METALS
                                                                                                                            YES       YES
                                PYROGENICS.  INC.
                                     SLUDGES
                                                                 11-111
NONHALOGENATED NONVOLATILES
NONVOLATILE METALS
VOLATILE METALS
                                                                                           YES        YES

-------
                                                       TABLE  #  2  (CONTINUED)
TREATMENT TECHNOLOGY COMPANY NAME
DEUATERING
(continued)
WESTERN RESEARCH INSTITUTE



MEDIA TREATED

SEDIMENTS
SLUDGES
SOILS

CONTAMINANT GROUPS

INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONVOLATILE METALS
ORGANIC CYANIDES
BENCH PILOT
SCALE SCALE

IMP INP



DISSOLVED AIR FLOTATION
                                YEC INC
                                      NOT SPECIFIED    NOT SPECIFIED
                                                                                                                           YES       NO
ELECTROCHEMICAL SEPARATION
                                IT CORPORATION
                                                                     AQUEOUS MEDIA
                                                       NONHALOGENATED NONVOLATILES
                                                       INORGANIC CORROSIVES
                                                                                                                           YES       NO
ELECTROCOAGULATION
                                WESTERN RESEARCH  INSTITUTE
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONVOLATILE METALS
ORGANIC CYANIDES
                                                                                                                           YES       YES
ELECTROOIALYSIS
ANDCO ENVIRONMENTAL PROCESSES,  INC.    AQUEOUS  MEDIA    NONVOLATILE  METALS
                               APPLIED SURFACE TECHNOLOGY
                                      AQUEOUS  MEDIA    INORGANIC  CORROSIVES
                                      ORGANIC  LIQUIDS  OXIDIZERS
                                      SLUDGES           HALOGENATED  NONVOLATILES
                                      SOILS             HALOGENATED  VOLATILES
                                                       NONVOLATILE  METALS
                                                       ORGANIC  CYANIDES
                                                       INORGANIC  CYANIDES
                                     NO        YES

                                     YES       YES
                               EARTH TECHNOLOGY CORP.
                                                                     AQUEOUS MEDIA    NOT SPECIFIED
                                                                     ORGANIC LIQUID
                                                                                                                           YES       NO
                               O'BRIEN AND GERE ENGINEERS, INC.      AQUEOUS MEDIA    NONVOLATILE METALS
                                                                     ORGANIC LIQUID
                                                                                                                           YES       NO
                               RADIAN CORPORATION
                                                                     AQUEOUS MEDIA    HALOGENATED NONVOLATILES
                                                                11-112
                                                                                                                           YES       YES

-------
 TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                             BENCH      PILOT
                                                                                                                             SCALE      SCALE
 ELECTRODIALYSIS
 (continued)
RADIAN CORPORATION
(continued)
ORGANIC LIQUID
                 HALOGENATED VOLATILES
                 NONHALOGENATED NONVOLATILES
                 NONHALOGENATED VOLATILES
                 NONVOLATILE METALS
                 ORGANIC CORROSIVES
                 ORGANIC CYANIDES
                 OXIDIZERS
                 PCBs
                 PESTICIDES
                 REDUCERS
                 VOLATILE METALS
                                RIVER OAK ASSOCIATES
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUID
                                                       INORGANIC  CORROSIVES
                                                       INORGANIC  CYANIDES
                                                       NONHALOGENATED NONVOLATILES
                                                       NONVOLATILE METALS
                                                       OXIDIZERS
                                                       RADIOACTIVE MATERIALS
                                                       REDUCERS
                                                       VOLATILE METALS
                                                                                                                            YES       NO
                                RMT, INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                                                      NOT SPECIFIED
                                                                                           YES        YES
ELECTROLYSIS
                                APPLIED SURFACE TECHNOLOGY
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUIDS
                                                                      SLUDGES
                                                                      SOILS
                                                      INORGANIC CORROSIVES
                                                      OXIDIZERS
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      NONVOLATILE METALS
                                                      ORGANIC CYANIDES
                                                      INORGANIC CYANIDES
                                                      YES       YES
EMULSION REMOVAL
                                WESTERN RESEARCH INSTITUTE
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUID
                                                                      SLUDGES
                                                                 11-113
                                                                                       NOT SPECIFIED
                                                                                           YES       NO

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH
                                                                                                                            SCALE
                                                                PILOT
                                                                SCALE
EMULSION REMOVAL
(continued)
WESTERN RESEARCH INSTITUTE
(continued)
SOILS
EVAPORATION
                                WESTERN  RESEARCH  INSTITUTE
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                     SLUDGES
                                                                                      NOT SPECIFIED
                                                                                                                           NO
                                                                                                                                     YES
FILTRATION
                                AAA CSI
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                               ANDCO ENVIRONMENTAL PROCESSES, INC.   NOT SPECIFIED

                               DIVERSIFIED ENGINEERING. INC.         SLUDGES

                               ENSOTECH, INC.                        ORGANIC LIQUID
                                                                     AQUEOUS MEDIA
                               I IT RESEARCH 1NST
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                11-114
                                                       HALOGENATED  NONVOLATILES
                                                       HALOGENATED  VOLATILES
                                                       INORGANIC  CORROSIVES
                                                       NONHALOGENATED  NONVOLATILES
                                                       NONHALOGENATED  VOLATILES
                                                       NONVOLATILE  METALS
                                                       ORGANIC CORROSIVES
                                                       OXIDIZERS
                                                       PCBS
                                                       PESTICIDES
                                                       REDUCERS
                                                       VOLATILE METALS

                                                       NOT SPECIFIED

                                                       NONVOLATILE  METALS

                                                       HALOGENATED  NONVOLATILES
                                                       HALOGENATED  VOLATILES
                                                       INORGANIC  CORROSIVES
                                                       INORGANIC  CYANIDES
                                                       NONHALOGENATED  NONVOLATILES
                                                       NONHALOGENATED  VOLATILES
                                                       NONVOLATILE  METALS
                                                       OXIDIZERS
                                                       REDUCERS

                                                       DIOXINS/FURANS
                                                       HALOGENATED  NONVOLATILES
                                                                                                                           NO
                                                                                                                                     NO
                                                      YES

                                                      NO

                                                      YES
NO

YES

YES
                                                                                                                           YES
                                                                                                                                      INP

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT  GROUPS
                                                                                                                            BENCH     PILOT
                                                                                                                            SCALE     SCALE
FILTRATION
(continued)
I IT RESEARCH INST
(continued)
 HALOGENATED  VOLATILES
 ASBESTOS
 NONVOLATILE  METALS
 NONHALOGENATED NONVOLATILES
 PCBs
 PESTICIDES
 VOLATILE METALS
 ORGANIC CYANIDES
 ORGANIC CORROSIVES
 OXIDIZERS
                                MAECORP,  INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                                                      NOT SPECIFIED
                                                                                                                            YES       YES
                                MARINE  POLUTION CONTROL
                                                                     AQUEOUS MEDIA
                                                                     SOILS
                                                      ASBESTOS
                                                      NONHALOGENATED VOLATILES
                                                      PCBs
                                                                                                                            INP       INP
                               MCNAMEE ADVANCED  TECHNOLOGY,  INC.
                                     AQUEOUS MEDIA
                                     SLUDGES
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
OXIDIZERS
REDUCERS
VOLATILE METALS
                                                                                                                           YES        YES
                               ROY F. UESTON,  INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                                                                11-115
PESTICIDES
DIOXINS/FURANS
NONVOLATILE METALS
INORGANIC CYANIDES
ORGANIC CYANIDES
INORGANIC CORROSIVES
                                                                                           YES       YES

-------
 TREATMENT  TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                   MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH     PILOT
                                                                                                                            SCALE     SCALE
 FILTRATION
 (continued)
ROY F.  UESTON,  INC.
(continued)
                                ROY F.  UESTON,  INC.
                 ORGANIC CORROSIVES
                 HALOGENATED VOLATILES
                 HALOGENATED NONVOLATILES
                 NONHALOGENATED NONVOLATILES
                 PCBs
                 NONHALOGENATED VOLATILES

SEDIMENTS        PESTICIDES
SLUDGES          DIOXINS/FURANS
SOILS            NONVOLATILE METALS
                 INORGANIC CYANIDES
                 INORGANIC CORROSIVES
                 ORGANIC CYANIDES
                 ORGANIC CORROSIVES
                 HALOGENATED NONVOLATILES
                 HALOGENATED VOLATILES
                 NONHALOGENATED NONVOLATILES
                 NONHALOGENATED VOLATILES
                 PCBs
                                                                                           YES       YES
                                ZIMPRO PASSAVANT
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                      NOT SPECIFIED
                                                                                                                           YES       YES
FLOTATION
                                WESTERN RESEARCH  INSTITUTE
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                      NONHALOGENATED NONVOLATILES
                                                      YES       NO
FLOTATION THICKENING
                                ROY F. UESTON, INC.
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
                                                                11-116
                 PESTICIDES
                 DIOXINS/FURANS
                 NONVOLATILE METALS
                 INORGANIC CYANIDES
                 INORGANIC CORROSIVES
                 ORGANIC CYANIDES
                 ORGANIC CORROSIVES
                 HALOGENATED NONVOLATILES
                 HALOGENATED VOLATILES
                                                                                           YES       NO

-------
 TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH     PILOT
                                                                                                                            SCALE     SCALE
 FLOTATION THICKENING
 (continued)
ROY F. UESTON, INC.
(continued)
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
PCBs
 FLUID-BED STRIPPING
                                APPLIED SURFACE TECHNOLOGY
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUIDS
                                                                      SLUDGES
                                                                      SOILS
                                                       INORGANIC CORROSIVES
                                                       OXIDIZERS
                                                       HALOGENATED NONVOLATILES
                                                       HALOGENATEO VOLATILES
                                                       NONVOLATILE METALS
                                                       ORGANIC  CYANIDES
                                                       INORGANIC CYANIDES
                                     YES       YES
FREEZE CONCENTRATION
                                MAECORP, INC.
                                      AQUEOUS  MEDIA
                                      ORGANIC  LIQUID
                                                      NOT  SPECIFIED
                                                                                            YES       YES
FREEZE CRYSTALLIZATION
                                FREEZE TECHNOLOGIES CORPORATION
                                                                      AQUEOUS MEDIA
                                                      NONVOLATILE METALS
                                                      ORGANIC  CORROSIVES
                                                      HALOGENATED VOLATILES
                                                      NONHALOGENATED VOLATILES
                                                                                                                            NO        YES
GRAVITY THICKENING
                                ROY F. UESTON,  INC.
                                     SEDIMENTS        PESTICIDES
                                     SLUDGES          DIOXINS/FURANS
                                     SOILS            NONVOLATILE METALS
                                                      INORGANIC CYANIDES
                                                      INORGANIC CORROSIVES
                                                      ORGANIC CYANIDES
                                                      ORGANIC CORROSIVES
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      NONHALOGENATED NONVOLATILES
                                                      NONHALOGENATED VOLATILES
                                                      PCBs
                                                                                           YES       YES
                                                                 11-117

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH     PILOT
                                                                                                                            SCALE     SCALE
<> IN SIIU RADIO FREQUENCY HEATING,  SEE  IN SITU TECHNOLOGIES

<> IN SITU SOIL FLUSHING,  SEE  IN SITU  TECHNOLOGIES

<> IN SITU VACUUM & STEAM  STRIPPING  AND  EXTRACTION,  SEE IN SITU  TECHNOLOGIES
ION EXCHANGE
AEA TECHNOLOGY                        AQUEOUS MEDIA    RADIOACTIVE MATERIALS
                                      ORGANIC LIQUID
                                      SEDIMENTS
                                      SLUDGES
                                      SOILS

ANDCO ENVIRONMENTAL PROCESSES. INC.   NOT SPECIFIED    NOT SPECIFIED
                               APPLIED SURFACE TECHNOLOGY
                               BIO-RECOVERY SYSTEMS,  INC.
                               CHEMENCO, INC.
                               COMBUSTION ENGINEERING,  INC.
                               D D ENVIRONMENTAL
                                      AQUEOUS MEDIA    INORGANIC CORROSIVES
                                      ORGANIC LIQUIDS  OXIDIZERS
                                      SLUDGES          HALOGENATED NONVOLATILES
                                      SOILS            HALOGENATED VOLATILES
                                                       NONVOLATILE METALS
                                                       ORGANIC CYANIDES
                                                       INORGANIC CYANIDES

                                      AQUEOUS MEDIA    NONVOLATILE METALS
                                      SLUDGES

                                      AQUEOUS MEDIA    NOT SPECIFIED
                                      ORGANIC LIQUID
                                      AQUEOUS MEDIA
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
                                                                     AQUEOUS MEDIA    HALOGENATED NONVOLATILES
                                                                     ORGANIC LIQUID   HALOGENATED VOLATILES
                                                                                      NONHALOGENATED NONVOLATILES
                                                                                      NONHALOGENATED VOLATILES
                                                                                      NONVOLATILE METALS
                                     YES       YES
                                                                                                                            INP        INP

                                                                                                                            YES        YES
                                                                                                                            YES
                                     INP
                                                                                                                           YES
                                                                                                                           YES
                                                                                                                                      NO
                                               INP
                                                                                                      YES
                                                                                                      YES
                                                                11-118

-------
TREATMENT TECHNOLOGY
                 TABLE # 2 (CONTINUED)

COMPANY NAME                    MEDIA TREATED       CONTAMINANT  GROUPS
                                                                                                                           BENCH
                                                                                                                           SCALE
                                                                                                PILOT
                                                                                                SCALE
ION EXCHANGE
(continued)
                                E  M  &  C  ENGINEERING ASSOCIATES
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                               EARTH TECHNOLOGY CORP.
                               ENSOTECH, INC.
                                AQUEOUS MEDIA
                                ORGANIC LIQUID

                                ORGANIC LIQUID
                                AQUEOUS MEDIA
                               ENVIRONMENTAL RESOURCE ASSOCIATES
                                                                     AQUEOUS MEDIA
                               ENVIRONMENTAL TECHNOLOGY SOUTHEAST    AQUEOUS MEDIA
                                                                11-119
                                                 DIOXINS/FURANS
                                                 HALOGENATED  NONVOLATILES
                                                 HALOGENATED  VOLATILES
                                                 INORGANIC  CORROSIVES
                                                 INORGANIC  CYANIDES
                                                 NONVOLATILE  METALS
                                                 ORGANIC CYANIDES
                                                 OXIDIZERS
                                                 PCBs
                                                 PESTICIDES
                                                 REDUCERS
                                                 VOLATILE METALS

                                                 NOT SPECIFIED
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
OXIDIZERS
REDUCERS

HALOGENATED VOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS

HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
                                      INP
                                                INP
                                                                                                                           YES       NO
YES       YES
                                                                                                                           YES       YES
                                                                                                                           INP       INP

-------
                       TABLE # 2 (CONTINUED)
TREATMENT TECHNOLOGY
ION EXCHANGE
(continued)
COMPANY NAME
ENVIRONMENTAL TECHNOLOGY SOUTHEAST
(continued)
MEDIA TREATED CONTAMINANT GROUPS
NONHALOGENATED VOLATILES
BENCH
SCALE

PILOT
SCALE

                                                       NONVOLATILE METALS
GENERAL PHYSICS CORPORATION
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
OXIDIZERS
REDUCERS
VOLATILE METALS
                                                                                            YES
                                                                                                      YES
I IT RESEARCH INST
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                                      SOILS
                                      OTHER  SOLIDS
                                      SEDIMENTS
DIOXINS/FURANS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
RADIOACTIVE MATERIALS
NONVOLATILE METALS
NONHALOGENATED NONVOLATILES
PCBs
PESTICIDES
VOLATILE METALS
ORGANIC CYANIDES
ORGANIC CORROSIVES
OXIDIZERS
                                                                                            INP
                                                                                                      INP
I IT RESEARCH INST
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
DIOXINS/FURANS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
RADIOACTIVE MATERIALS
NONVOLATILE METALS
NONHALOGENATED NONVOLATILES
PCBs
PESTICIDES
VOLATILE METALS
ORGANIC CYANIDES
ORGANIC CORROSIVES
OXIDIZERS
                                                                                            YES
                                                                                                      INP
INTERNATIONAL  PROCESS RESEARCH CORP   AQUEOUS MEDIA
                                11-120
HALOGENATED NONVOLATILES
                                     YES
                                               YES

-------
TREATMENT TECHNOLOGY
                                                       TABLE # 2 (CONTINUED)

                                      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH      PILOT
                                                                                                                            SCALE      SCALE
ION EXCHANGE
(continued)
INTERNATIONAL PROCESS RESEARCH CORP
(continued)
ORGANIC LIQUID
HALOGIEATED BOLAITLES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
OXIDIZERS
REDUCERS
                                IT CORPORATION
                                                                      AQUEOUS MEDIA
                                                       NONVOLATILE METALS
                                                       RADIOACTIVE MATERIALS
                                                                                                                            YES       YES
                                MAECORP,  INC.
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                                                                                       NOT SPECIFIED
                                                                                                                            YES       YES
                                MCNAMEE  ADVANCED TECHNOLOGY,  INC.
                                      AQUEOUS MEDIA
                                      SLUDGES
                 HALOGENATED NONVOLATILES
                 HALOGENATED VOLATILES
                 INORGANIC CORROSIVES
                 INORGANIC CYANIDES
                 NONHALOGENATED NONVOLATILES
                 NONHALOGENATED VOLATILES
                 NONVOLATILE METALS
                 ORGANIC  CORROSIVES
                 ORGANIC  CYANIDES
                 OXIDIZERS
                 REDUCERS
                 VOLATILE METALS
                                                                                                                            YES       YES
                               O'BRIEN AND  GERE  ENGINEERS.  INC.
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                 NONVOLATILE METALS
                 VOLATILE METALS
                                                                                                                            YES       YES
                               OHM CORPORATION
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUID
                                                                      SLUDGES
                                                                 M-121
                                                       DIOXINS/FURANS
                                                       HALOGENATED  NONVOLATILES
                                                       HALOGENATED  VOLATILES
                                                       NONHALOGENATED  VOLATILES
                                                       NONVOLATILE  METALS
                                                                                                                            YES       YES

-------
TREATMENT TECHNOLOGY
                       TABLE # 2  (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                           BENCH     PILOT
                                                                                                                           SCALE     SCALE
ION EXCHANGE
(continued)
OHH CORPORATION
(continued)
NONHALOGENATED NONVOLATILES
PCBs
PESTICIDES
VOLATILE METALS
                                QUALTEC,  INC.
                                     AQUEOUS MEDIA
                                                      HALOGENATED VOLATILES
                                                      NONHALOGENATED NONVOLATILES
                                                      NONHALOGENATED VOLATILES
                                                      NONVOLATILE METALS
                                                      PCBs
                                                                                                                           INP
                                                                                                                                     INP
                                RADIAN CORPORATION
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      NONHALOGENATED NONVOLATILES
                                                      NONHALOGENATED VOLATILES
                                                      NONVOLATILE METALS
                                                      ORGANIC CORROSIVES
                                                      ORGANIC CYANIDES
                                                      OXIDIZERS
                                                      PCBs
                                                      PESTICIDES
                                                      REDUCERS
                                                      VOLATILE METALS
                                                                                                                           YES
                                                                                                                                     YES
                               RIVER OAK ASSOCIATES
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                      VOLATILE METALS
                                                      NONVOLATILE METALS
                                                      RADIOACTIVE MATERIALS
                                                      REDUCERS
                                                      INORGANIC CORROSIVES
                                                      INORGANIC CYANIDES
                                                      OXIDIZERS
                                                                                                                           YES       NO
                               RHT, INC.
                               RNK ENVIRONMENTAL, INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID

                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                                11-122
NOT SPECIFIED
NOT SPECIFIED
                                                                                                                           YES       YES
                                     YES       NO

-------
TREATMENT TECHNOLOGY
                 TABLE # 2 (CONTINUED)

COMPANY NAME                    HEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH
                                                                                                                            SCALE
                                                                                                PILOT
                                                                                                SCALE
ION EXCHANGE
(continued)
                                ROY F.  UESTON,  INC.
                                AQUEOUS MEDIA
                                ORGANIC LIQUID
PESTICIDES
DIOXINS/FURANS
NONVOLATILE METALS
INORGANIC CYANIDES
ORGANIC CYANIDES
INORGANIC CORROSIVES
ORGANIC CORROSIVES
HALOGENATED VOLATILES
HALOGENATED NONVOLATILES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
PCBS
YES
          YES
                               SYBRON CHEMICALS,  INC.
                                AQUEOUS  MEDIA
                                ORGANIC  LIQUID
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CYANIDES
YES       YES
                               VERSAR INC.
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                 HALOGENATED NONVOLATILES
                                                 HALOGENATED VOLATILES
                                                 INORGANIC CORROSIVES
                                                 INORGANIC CYANIDES
                                                 NONHALOGENATED NONVOLATILES
                                                 NONHALOGENATED VOLATILES
                                                 NONVOLATILE METALS
                                                 ORGANIC CORROSIVES
                                                 ORGANIC CYANIDES
                                                 OXIDIZERS
                                                 PCBs
                                                 PESTICIDES
                                     NO
                                                YES
                               WESTERN RESEARCH INSTITUTE
                                                                     AQUEOUS MEDIA
                                                                     SLUDGES
                                                                11-123
                                                INORGANIC CYANIDES
                                                NONHALOGENATED NONVOLATILES
                                     INP        1NP

-------
TREATMENT TECHNOLOGY
                       TABLE # 2  (CONTINUED)

      COMPANY NAME                    MEDIA TREATED        CONTAMINANT  GROUPS
                                                                                                                           BENCH     PILOT
                                                                                                                           SCALE     SCALE
ION EXCHANGE
(continued)
WESTERN RESEARCH INSTITUTE
(continued)
                                WOODWARD CLYDE CONSULTANTS
                 NONVOLATILE METALS
                 ORGANIC CYANIDES

AQUEOUS MEDIA    NOT SPECIFIED
ORGANIC LIQUID
                                                                                                                           YES       YES
                                YEC  INC
                                                                     NOT SPECIFIED
                                                                                      NOT SPECIFIED
                                                                                                                           YES       NO
LIQUID-LIQUID EXTRACTION
                               AAA CSI
                               AEA TECHNOLOGY
                               CAA BIOREMEDIATION SYSTEMS
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID

                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                 HALOGENATED NONVOLATILES
                 HALOGENATED VOLATILES
                 INORGANIC CORROSIVES
                 NONHALOGENATED NONVOLATILES
                 NONHALOGENATED VOLATILES
                 NONVOLATILE METALS
                 ORGANIC CORROSIVES
                 OXIDIZERS
                 PCBs
                 PESTICIDES
                 REDUCERS
                 VOLATILE METALS

                 NOT SPECIFIED
                                                                                      HALOGENATED VOLATILES
                                                                                      HALOGENATED NONVOLATILES
                                                                                      NONHALOGENATEO VOLATILES
                                                                                      NONHALOGENATED NONVOLATILES
                                                                                      PCBs
                                                                                      PESTICIDES
                                                                                                                           NO
                                                                                                                                     NO
                                                                                                                           YES       YES
                                                                                                                           YES       NO
                               CHEMENCO, INC.
                               E M & C ENGINEERING ASSOCIATES
                                     AQUEOUS MEDIA    NOT SPECIFIED
                                     ORGANIC LIQUID

                                     AQUEOUS MEDIA    DIOXINS/FURANS
                                     ORGANIC LIQUID   HALOGENATED NONVOLATILES
                                11-124
                                                                                                                           INP       INP
                                                                                                                           INP       INP

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT  GROUPS
                                                                                                                            BENCH     PILOT
                                                                                                                            SCALE     SCALE
LIQUID-LIQUID EXTRACTION
(continued)
E M & C ENGINEERING ASSOCIATES
(continued)
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONVOLATILE METALS
ORGANIC CYANIDES
OXIDIZERS
PCBs
PESTICIDES
REDUCERS
VOLATILE METALS
                                ENURIGHT  ENVIRONMENTAL,  INC.
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                                                      RADIOACTIVE MATERIALS
                                                                                           YES        NO
                                GENERAL  PHYSICS  CORPORATION
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUID
                                                                      SLUDGES
                                                                      SOILS
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      NONHALOGENATED NONVOLATILES
                                                      NONHALOGENATED VOLATILES
                                                      ORGANIC CORROSIVES
                                                      ORGANIC CYANIDES
                                                      PCBs
                                                      VOLATILE METALS
                                                                                                                           YES        YES
                                INTERNATIONAL PROCESS RESEARCH CORP
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      INORGANIC CORROSIVES
                                                      INORGANIC CYANIDES
                                                      NONHALOGENATED VOLATILES
                                                      NONVOLATILE METALS
                                                      ORGANIC CORROSIVES
                                                      ORGANIC CYANIDES
                                                      OXIDIZERS
                                                      REDUCERS
                                                                                                                           YES       YES
                                IT CORPORATION
                                                                     AQUEOUS MEDIA
                                                                     SLUDGES
                                                                11-125
                                                      NONHALOGENATED NONVOLATILES
                                                      PCBs
                                                      DIOXINS/FURANS
                                     YES       YES

-------
TREATMENT TECHNOLOGY
                 TABLE # 2 (CONTINUED)

COMPANY NAME                    MEDIA TREATED       CONTAMINANT  GROUPS
                                                                                                                           BENCH
                                                                                                                           SCALE
                                               PILOT
                                               SCALE
LIQUID-LIQUID EXTRACTION
(continued)
                                JACOBS ENGINEERING GROUP, INC.
                                AQUEOUS  MEDIA
                                ORGANIC  LIQUID
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
                                                                                                                           YES
                                                                                                                                     NO
                                MAECORP,  INC.
                               AQUEOUS MEDIA
                               ORGANIC LIQUID
                                                NOT  SPECIFIED
                                                                                                                           YES       YES
                               MCNAMEE ADVANCED TECHNOLOGY, INC.
                               AQUEOUS MEDIA
                               SLUDGES
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGEMATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
OXIDIZERS
REDUCERS
VOLATILE METALS
                                                                                                                           YES       YES
                               O'BRIEN AND GERE ENGINEERS. INC.
                               AQUEOUS MEDIA
                               ORGANIC LIQUID
                                                NOT SPECIFIED
                                                                                                                           YES       NO
                               RMT, INC.
                               AQUEOUS MEDIA
                               ORGANIC LIQUID
NOT SPECIFIED
                                                                                                                           YES       YES
                               S- CUBED
                                                                     AQUEOUS MEDIA
                                                                                      DIOXINS/FURANS
                                                                                      HALOGENATED VOLATILES
                                                                                      NONHALOGENATED VOLATILES
                                                                                      ORGANIC CYANIDES
                                                                                      PCBs
                                                                                      PESTICIDES
                                                                                                                           YES       NO
                               VERSAR INC.
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                11-126
                                                HALOGENATED NONVOLATILES
                                                HALOGENATED VOLATILES
                                                                                                                           NO
                                                                                                                                     YES

-------
 TREATMENT  TECHNOLOGY
                 TABLE # 2 (CONTINUED)

COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                             BENCH      PILOT
                                                                                                                             SCALE      SCALE
 LIQUID-LIQUID  EXTRACTION         VERSAR  INC.
 (continued)                      (continued)
                                                 INORGANIC CORROSIVES
                                                 INORGANIC CYANIDES
                                                 NONHALOGENATED NONVOLATILES
                                                 NONHALOGENATED VOLATILES
                                                 NONVOLATILE METALS
                                                 ORGANIC CORROSIVES
                                                 ORGANIC CYANIDES
                                                 OXIDIZERS
                                                 PCBS
                                                 PESTICIDES
                                WESTERN RESEARCH INSTITUTE
                                AQUEOUS  MEDIA
                                ORGANIC  LIQUID
                                                                                       NONHALOGENATED NONVOLATILES
                                                                                                                             INP
                                                                                                                                       INP
LIQUID-SOLID SEPARATION
                                AEA TECHNOLOGY
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUID
                                                                      SEDIMENTS
                                                                      SLUDGES
                                                                      SOILS
                                                                                       NOT SPECIFIED
                                                                                                                             INP
                                                                                                                                       INP
                                WESTERN RESEARCH INSTITUTE
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUID
                                                 INORGANIC  CYANIDES
                                                 NONHALOGENATED NONVOLATILES
                                                 NONVOLATILE METALS
                                                 ORGANIC  CYANIDES
                                                                                                                            YES
                                                                                                                                      YES
LOU ENERGY EXTRACTION PROCESS   REMEDIATION TECHNOLOGY, INC.
                               SEDIMENTS
                               SLUDGES
                               SOILS
                               OTHER SOLIDS
                                                PCBs
                                                                                      YES
                                                                                                NO
LOU TEMP THERMAL EXTRACTION     COMBUSTION ENGINEERING, INC.
                               SLUDGES
                               SOILS
HALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
                                                                                      YES
                                                                                                YES
                                                                 11-127

-------
TREATMENT TECHNOLOGY
                 TABLE # 2 (CONTINUED)

COMPANY NAME                    HEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                           BENCH
                                                                                                                           SCALE
                                                                                                PILOT
                                                                                                SCALE
LOW TEMP THERMAL  STRIPPING
                                AAA  CSI
                                                                     SEDIMENTS        HALOGENATED NONVOLATILES
                                                                     SLUDGES          HALOGENATED VOLATILES
                                                                     SOILS            INORGANIC CORROSIVES
                                                                                      NONHALOGENATED NONVOLATILES
                                                                                      NONHALOGENATED VOLATILES
                                                                                      NONVOLATILE METALS
                                                                                      ORGANIC CORROSIVES
                                                                                      OXIDIZERS
                                                                                      PCBs
                                                                                      PESTICIDES
                                                                                      REDUCERS
                                                                                      VOLATILE METALS
                                                                                                                           NO
                                                                                                                                     NO
                               APPLIED SURFACE TECHNOLOGY
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUIDS
                                                                     SLUDGES
                                                                     SOILS
                                                 INORGANIC CORROSIVES
                                                 OXIDIZERS
                                                 HALOGENATED NONVOLATILES
                                                 HALOGENATED VOLATILES
                                                 NONVOLATILE METALS
                                                 ORGANIC CYANIDES
                                                 INORGANIC CYANIDES
                                                                                                                           YES       YES
                               CAA BIOREMEDIATION SYSTEMS
                                                                     SEDIMENTS        HALOGENATED NONVOLATILES
                                                                     SLUDGES          HALOGENATED VOLATILES
                                                                     SOILS            NONHALOGENATED NONVOLATILES
                                                                                      NONHALOGENATED VOLATILES
                                                                                      PCBs
                                                                                      PESTICIDES
                                                                                      YES        NO
                               CHEMENCO, INC.
                               OTHER SOLIDS
                               SEDIMENTS
                               SOILS
                               SLUDGES
                                                NOT SPECIFIED
                                                                                      INP        IMP
                               E M & C ENGINEERING ASSOCIATES
                                                                     SLUDGES
                                                                     OTHER SOILDS
                                                                     SOILS
                                                                11-128
                                                DIOXINS/FURANS
                                                HALOGENATED NONVOLATILES
                                                HALOGENATED VOLATILES
                                                INORGANIC CORROSIVES
INP       INP

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH     PILOT
                                                                                                                            SCALE     SCALE
LOU TEMP THERMAL STRIPPING
(continued)
E M & C ENGINEERING ASSOCIATES
(continued)
 INORGANIC CYANIDES
 NONVOLATILE  METALS
 ORGANIC CYANIDES
 OXIDIZERS
 PCBs
 PESTICIDES
 REDUCERS
 VOLATILE METALS
                                EARTH  TECHNOLOGY  CORP.
                                ENSOTECH,  INC.
                                      SEDIMENTS
                                      SLUDGES
                                      SOILS

                                      OTHER  SOLIDS
                                      SEDIMENTS
                                      SLUDGES
                                      SOILS
                                                                                       NOT  SPECIFIED
 HALOGENATED NONVOLATILES
 HALOGENATED VOLATILES
 INORGANIC CORROSIVES
 INORGANIC CYANIDES
 NONHALOGENATED NONVOLATILES
 NONHALOGENATED VOLATILES
 NONVOLATILE METALS
 OXIDIZERS
 REDUCERS
                                                                                                                            YES        NO
                                      YES        YES
                               HUNTER SERVICES,  INC.
                               I IT RESEARCH INST
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                                                                     SLUDGES
                                                                11-129
DIOXINS/FURANS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
OXIDIZERS
PCBs
PESTICIDES
REDUCERS

DIOXINS/FURANS
                                     YES        YES
                                                                                           INP        INP

-------
TREATMENT TECHNOLOGY
                                      COMPANY  NAME
                       TABLE # 2 (CONTINUED)

                                      MEDIA TREATED
                                                                                         CONTAMINANT GROUPS
                                                      BENCH     PILOT
                                                      SCALE     SCALE
LOU TEMP THERMAL STRIPPING
(continued)
I IT RESEARCH INST
(continued)
OTHER SOLIDS     HALOGENATED NONVOLATILES
SOILS            HALOGENATED VOLATILES
                 RADIOACTIVE MATERIALS
                 NONVOLATILE METALS
                 NONHALOGENATED NONVOLATILES
                 PCBs
                 PESTICIDES
                 VOLATILE METALS
                 ORGANIC CYANIDES
                 ORGANIC CORROSIVES
                 OXIDIZERS
                                IT CORPORATION
                                                                     SOILS
                                                                                      DIOXINS/FURANS
                                                                                      HALOGENATED NONVOLATILES
                                                                                      HALOGENATED VOLATILES
                                                                                      NONHALOGENATED NONVOLATILES
                                                                                      NONHALOGENATED VOLATILES
                                                                                      NONVOLATILE METALS
                                                                                      PCBs
                                                                                      PESTICIDES
                                                                                      RADIOACTIVE MATERIALS
                                                                                                                           YES       YES
                               KSE, INC.
                                     SOILS
                                     SLUDGES
                                     OTHER SOLIDS
                 HALOGENATED VOLATILES
                 NONHALOGENATED VOLATILES
                 NONVOLATILE METALS
                 VOLATILE METALS
                                                                                                                           YES       YES
                               MAECORP, INC.
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
                 NOT  SPECIFIED
                                                                                                                           YES       YES
                               OHM CORPORATION
                                                                     SOILS
                                                                     ORGANIC LIQUID
                                                                     OTHER SOLIDS
                                                                11-130
                                                      DIOXINS/FURANS
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      NONHALOGENATED VOLATILES
                                                      NONVOLATILE METALS
                                                      NONHALOGENATED NONVOLATILES
                                                                                                                           YES       YES

-------
 TREATMENT  TECHNOLOGY
                       TABLE # 2  (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                             BENCH     PILOT
                                                                                                                             SCALE     SCALE
 LOU TEMP  THERMAL  STRIPPING
 (continued)
OHM CORPORATION
(continued)
                                                                                        PCBs
                                                                                        PESTICIDES
                                                                                        VOLATILE  METALS
                                 RMT,  INC.
                                      SEDIMENTS
                                      SLUDGES
                                      SOILS
                                                       NOT SPECIFIED
YES       YES
                                ROY  F. UESTON,  INC.
                                      SEDIMENTS        PESTICIDES
                                      SLUDGES          DIOXINS/FURANS
                                      SOILS            NONVOLATILE METALS
                                                       VOLATILE METALS
                                                       PCBs
                                                       HALOGENATED NONVOLATILES
                                                       HALOGENATED VOLATILES
                                                       NONHALOGENATED NONVOLATILES
                                                       NONHALOGENATED VOLATILES
                                                                                            YES       YES
MIXED MEDIA FILTRATION
                                O'BRIEN AND GERE ENGINEERS, INC.
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                                                       NOT  SPECIFIED
                                                                                            YES       YES
MOLECULAR BEAM MASS SPEC
                                MIDWEST RESEARCH INSTITUTE
                                                                      OTHER SOLIDS     HALOGENATED VOLATILES
                                                                      SEDIMENTS        HALOGENATED NONVOLATILES
                                                                      SOILS            NONHALOGENATED NONVOLATILES
                                                                      SLUDGES          NONHALOGENATED VOLATILES
                                                                                                                            YES       YES
NEUTRALIZATION
                                AAA CSI
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUID
                                                                 11-131
                                                       HALOGENATED  NONVOLATILES
                                                       HALOGENATED  VOLATILES
                                                       INORGANIC CORROSIVES
                                                       NONHALOGENATED NONVOLATILES
                                                       NONHALOGENATED VOLATILES
                                                       NONVOLATILE  METALS
                                                       ORGANIC CORROSIVES
                                                       OXID1ZERS
                                                                                                                            NO        NO

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT  GROUPS
                                                                                                                            BENCH      PILOT
                                                                                                                            SCALE      SCALE
NEUTRALIZATION
(continued)
AAA CSI
(continued)
PCBs
PESTICIDES
REDUCERS
VOLATILE METALS
                                BIOSCIENCE  MANAGEMENT,  INC.
                                      ORGANIC  LIQUID
                                                       DIOXINS/FURANS
                                                       HALOGENATED  NONVOLAT ILE S
                                                       HALOGENATED  VOLATILES
                                                       INORGANIC  CYANIDES
                                                       NONHALOGENATED NONVOLATILES
                                                       NONHALOGENATED VOLATILES
                                                       ORGANIC  CORROSIVES
                                                       ORGANIC  CYANIDES
                                                       PCBs
                                                                                            YES
                                                                                                                                     YES
                               CAA BIOREMEDIATION SYSTEMS
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                       HALOGENATED  NONVOLATILES
                                                       HALOGENATED  VOLATILES
                                                       NONHALOGENATED NONVOLATILES
                                                       NONHALOGENATED VOLATILES
                                                       PCBs
                                                       PESTICIDES
                                                                                                                           YES       NO
                               CAA BIOREMEDIATION SYSTEMS
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                       HALOGENATED NONVOLATILES
                                                       HALOGENATED VOLATILES
                                                       NONHALOGENATED NONVOLATILES
                                                       NONHALOGENATED VOLATILES
                                                       PCBs
                                                       PESTICIDES
                                                                                                                           YES       NO
                               CHEMENCO, INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                                                      NOT SPECIFIED
                                                                                            INP       INP
                               E M & C ENGINEERING ASSOCIATES
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                11-132
                                                      DIOXINS/FURANS
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      INORGANIC CORROSIVES
                                                      INORGANIC CYANIDES
                                                                                                                            INP        INP

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH     PILOT
                                                                                                                            SCALE     SCALE
NEUTRALIZATION
(continued)
E M & C ENGINEERING ASSOCIATES
(continued)
                                EARTH  TECHNOLOGY CORP.
                                ENSOTECH,  INC.
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID

                                      ORGANIC LIQUID
                                      AQUEOUS MEDIA
                               ENVIRONMENTAL RESOURCE ASSOCIATES
                                                                     AQUEOUS MEDIA
                               ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                                                     AQUEOUS MEDIA
                               ENURIGHT ENVIRONMENTAL, INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
 NONVOLATILE METALS
 ORGANIC CYANIDES
 OXIDIZERS
 PCGs
 PESTICIDES
 REDUCERS
 VOLATILE METALS

 NOT SPECIFIED
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
OXIDIZERS
REDUCERS

HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS

HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS

RADIOACTIVE MATERIALS
                                                                                                                           YES        NO
YES       YES
                                                                                                                           YES       YES
                                                                                                                           INP        INP
                                     YES       YES
                                                                11-133

-------
TREATMENT TECHNOLOGY
                       TABLE  # 2  (CONTINUED)

      COMPANY NAME                   MEDIA TREATED        CONTAMINANT GROUPS
                                                                                                                           BENCH
                                                                                                                           SCALE
                                                PILOT
                                                SCALE
NEUTRALIZATION
(continued)
FRANCIS A.  MCLOUGHLIN.  INC.
                                GENERAL PHYSICS CORPORATION
                                     SLUDGES
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                               HARMON ENVIRONMENTAL SERVICES, INC.   SLUDGES

                               HUNTER SERVICES, INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
 ASBESTOS
 NONVOLATILE METALS

 NONVOLATILE METALS
 ORGANIC CORROSIVES
 ORGANIC CYANIDES
 OXIDIZERS
 REDUCERS
 VOLATILE METALS

 NOT SPECIFIED

 HALOGENATED NONVOLATILES
 HALOGENATED VOLATILES
 NONHALOGENATED NONVOLATILES
 NONHALOGENATED VOLATILES
 OXIDIZERS
 REDUCERS
                                                                                            INP
                                                                                                                           YES
                                                                                                      INP
                                                                                                                                     YES
                                                                                           YES       YES

                                                                                           YES       YES
                               INTERNATIONAL PROCESS RESEARCH CORP
                               IT CORPORATION
                               MAECORP, INC.
                               MARINE POLUTION CONTROL
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
 HALOGENATED NONVOLATILES
 HALOGENATED VOLATILES
 INORGANIC CORROSIVES
"INORGANIC CYANIDES
 NONHALOGENATED VOALTILES
 NONVOLATILE METALS
 ORGANIC CORROSIVES
 ORGANIC CYANIDES
 OXIDIZERS
 REDUCERS
                                     AQUEOUS MEDIA    ORGANIC CORROSIVES
                                                      INORGANIC CORROSIVES

                                     AQUEOUS MEDIA    NOT SPECIFIED
                                     ORGANIC LIQUID

                                     AQUEOUS MEDIA    NONHALOGENATED VOLATILES
                                11-134
                                                                                                                           YES       YES
                                                                                                                           YES       YES
                                                                                                                           YES       YES
                                                                                                                           INP       INP

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH
                                                                                                                            SCALE
                                                                                                      PILOT
                                                                                                      SCALE
NEUTRALIZATION
(continued)
MARINE POLUTION CONTROL
(continued)

MCNAMEE ADVANCED TECHNOLOGY, INC.
SOILS

AQUEOUS MEDIA
SLUDGES
PCBs

HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
OXIDIZERS
REDUCERS
VOLATILE METALS
                                                                                                                            YES
                                                                                                                                      YES
                                O'BRIEN  AND GERE ENGINEERS,  INC.
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                 NONVOLATILE METALS
                 VOLATILE METALS
                                                                                            YES       YES
                               OHM  CORPORATION
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUID
                                                                      SLUDGES
                                                       DIOX1NS/FURANS
                                                       HALOGENATED NONVOLATILES
                                                       HALOGENATED VOLATILES
                                                       NONHALOGENATED  VOLATILES
                                                       NONVOLATILE METALS
                                                       NONHALOGENATED  NONVOLATILES
                                                       PCBs
                                                       PESTICIDES
                                                       VOLATILE  METALS
                                                                                                                            YES       YES
                               RIVER OAK ASSOCIATES
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                       INORGANIC  CORROSIVES
                                                       INORGANIC  CYANIDES
                                                       NONHALOGENATED NONVOLATILES
                                                       NONVOLATILE METALS
                                                       OXIDIZERS
                                                       RADIOACTIVE MATERIALS
                                                       REDUCERS
                                                       VOLATILE METALS
                                                                                                                            YES        NO
                                                                 11-135

-------
TREATMENT TECHNOLOGY
                       TABLE  # 2  (CONTINUED)

      COMPANY NAME                    MEDIA TREATED
                                                                                         CONTAMINANT GROUPS
                                                                                                                           BENCH
                                                                                                                           SCALE
                                               PILOT
                                               SCALE
NEUTRALIZATION
(continued)
RIVER OAK ASSOCIATES
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
 INORGANIC CORROSIVES
 INORGANIC CYANIDES
 NONHALOGENATED NONVOLATILES
 NONVOLATILE METALS
 OXIDIZERS
 RADIOACTIVE MATERIALS
 REDUCERS
 VOLATILE METALS
                                                                                           YES
                                                                                                     NO
                               RMT, INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
NOT SPECIFIED
                                                                                           YES       YES
                               RNK ENVIRONMENTAL, INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                                                      NOT SPECIFIED
                                                                                           YES       NO
                               ROY F. UESTON, INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
PESTICIDES
DIOXINS/FURANS
NONVOLATILE METALS
INORGANIC CYANIDES
ORGANIC CYANIDES
INORGANIC CORROSIVES
ORGANIC CORROSIVES
HALOGENATED VOLATILES
HALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
PCBs
                                                                                                                           YES       YES
                               VERSAR INC.
                                                                     AQUEOUS  MEDIA
                                                                     ORGANIC  LIQUID
                                                                11-136
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      INORGANIC CORROSIVES
                                                      INORGANIC CYANIDES
                                                      NONHALOGENATED NONVOLATILES
                                                      NONHALOGENATED VOLATILES
                                                      NONVOLATILE METALS
                                                      ORGANIC CORROSIVES
                                                      ORGANIC CYANIDES
                                                                                                                           NO
                                                                                                                                     YES

-------
 TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                             BENCH      PILOT
                                                                                                                             SCALE      SCALE
 NEUTRALIZATION
 (continued)
VERSAR INC.
(continued)
                                                                                       OXIDIZERS
                                                                                       PCBs
                                                                                       PESTICIDES
                                WESTERN RESEARCH  INSTITUTE
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUID
                                                                      SLUDGES
                                                                      SOILS
                                                       INORGANIC  CYANIDES
                                                       NONHALOGENATED  NONVOLATILES
                                                       NONHALOGENATED  VOLATILES
                                                       NONVOLATILE  METALS
                                                       ORGANIC  CYANIDES
                                                       RADIOACTIVE  METERIALS
YES        INP
                                WOODWARD CLYDE CONSULTANTS
                                                                      AQUEOUS MEDIA    NOT SPECIFIED
                                                                      ORGANIC LIQUID
                                                                                                                            YES       YES
                                YEC INC
                                                                      NOT SPECIFIED    NOT SPECIFIED
                                                                                                                            YES       NO
OIL-WATER SEPARATION
                                OHM CORPORATION
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUID
                                                                      SLUDGES
                                                      DIOXINS/FURANS
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      NONHALOGENATED VOLATILES
                                                      NONVOLATILE METALS
                                                      NONHALOGENATED NONVOLATILES
                                                      PCBs
                                                      PESTICIDES
                                                      VOLATILE METALS
                                                      VOLATILE METALS
                                                                                                                            YES       YES
OZONATION
                                APPLIED SURFACE TECHNOLOGY
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUIDS
                                                                      SLUDGES
                                                                      SOILS
                                                      INORGANIC CORROSIVES
                                                      OXIDIZERS
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      NONVOLATILE METALS
                                                      ORGANIC CYANIDES
                                                      INORGANIC CYANIDES
YES       YES
                                                                 11-137

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                           BENCH     PILOT
                                                                                                                           SCALE     SCALE
OZONATION
(continued)
CHEMENCO, INC.
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                                      NOT SPECIFIED
                                                                                            INP        INP
                                DETOX,  INC.
                                      AQUEOUS  MEDIA
                                      ORGANIC  LIQUID
                                      SEDIMENTS
                                      SLUDGES
                                      SOILS
HALOGENATED VOLATILES
HALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
PESTICIDES
DIOXINS/FURANS
ORGANIC CYANIDES
ORGANIC CORROSIVES
VOLATILE METALS
NONVOLATILE METALS
                                     YES       YES
                               E M & C ENGINEERING ASSOCIATES
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                      DIOXINS/FURANS
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      INORGANIC CORROSIVES
                                                      INORGANIC CYANIDES
                                                      NONVOLATILE METALS
                                                      ORGANIC CYANIDES
                                                      OXIDIZERS
                                                      PCBs
                                                      PESTICIDES
                                                      REDUCERS
                                                      VOLATILE METALS
                                                                                                                           INP       INP
                               EARTH TECHNOLOGY CORP.
                                                                     AQUEOUS MEDIA    NOT SPECIFIED
                                                                     ORGANIC LIQUID
                                                                                                                           YES       NO
                               ENURIGHT ENVIRONMENTAL, INC.
                                     AQUEOUS MEDIA    RADIOACTIVE MATERIALS
                                     ORGANIC LIQUID
                                                                                           YES       NO
                               GENERAL PHYSICS CORPORATION
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                11-138
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      INORGANIC CORROSIVES
                                                      INORGANIC CYANIDES
                                                                                                                           YES       YES

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH
                                                                                                                            SCALE
                                                                                                      PILOT
                                                                                                      SCALE
OZONATION
(continued)
GENERAL PHYSICS CORPORATION
(continued)
                                                                                       NONHALOGENATED  NONVOLATILES
                                                                                       NONHALOGENATED  VOLATILES
                                                                                       NONVOLATILE METALS
                                                                                       ORGANIC  CORROSIVES
                                                                                       ORGANIC  CYANIDES
                                                                                       OXIDIZERS
                                                                                       REDUCERS
                                HUNTER SERVICES,  INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
DIOXINS/FURANS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
NONHALOGENATEO NONVOLATILES
NONHALOGENATED VOLATILES
ORGANIC CORROSIVES
ORGANIC CYANIDES
OXIDIZERS
REDUCERS
                                                                                           YES
YES
                                I IT  RESEARCH  INST
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                      DIOXINS/FURANS
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      RADIOACTIVE MATERIALS
                                                      NONVOLATILE METALS
                                                      NONHALOGENATED NONVOLATILES
                                                      PCBs
                                                      PESTICIDES
                                                      VOLATILE METALS
                                                      ORGANIC CYANIDES
                                                      ORGANIC CORROSIVES
                                                      OXIDIZERS
                                                                                                                           YES
                                                                                                                                     YES
                                INTERNATIONAL PROCESS RESEARCH CORP
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                11-139
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      INORGANIC CORROSIVES
                                                      INORGANIC CYANIDES
                                                      NONHALOGENATED VOLATILES
                                                      NONVOLATILE METALS
                                                                                                                           YES
                                                                                                                                     YES

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY  NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                           BENCH
                                                                                                                           SCALE
                                                                                                     PILOT
                                                                                                     SCALE
OZONATION
(continued)
INTERNATIONAL  PROCESS RESEARCH CORP
(continued)
                               MCNAHEE ADVANCED TECHNOLOGY, INC.
                                     AQUEOUS MEDIA
                                     SLUDGES
                               O'BRIEN AND GERE ENGINEERS.  INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                               RADIAN CORPORATION
                                                                    AQUEOUS MEDIA
                                                                    ORGANIC LIQUID
ORGANIC OCRROSIVES
ORGANIC CYANIDES
OXIDIZERS
REDUCERS

HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
OXIDIZERS
REDUCERS
VOLATILE METALS

INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
ORGANIC CYANIDES
REDUCERS

HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
OXIDIZERS
PCBs
PESTICIDES
REDUCERS
VOLATILE METALS
                                                                                           YES
                                                                                                     YES
                                                                                           YES
                                                                                                     NO
                                                                                                                          YES
                                                                                                                                     YES
                                                                11-140

-------
 TREATMENT  TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                             BENCH
                                                                                                                             SCALE
                                                                                                      PILOT
                                                                                                      SCALE
 OZONATION
 (continued)
REMEDIATION TECHNOLOGIES
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUID
                                                       HALOGENATED VOLATILE
                                                       NONHALOGENATED VOLATILES
                                      YES
                                                YES
                                RIVER OAK ASSOCIATES
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUID
                                                       HALOGENATED NONVOLATILES
                                                       HALOGENATED VOLATILES
                                                       INORGANIC CORROSIVES
                                                       INORGANIC CYANIDES
                                                       NONHALOGENATED NONVOLATILES
                                                       NONVOLATILE METALS
                                                       OXIDIZERS
                                                       RADIOACTIVE MATERIALS
                                                       VOLATILE  METALS
                                                                                            YES
                                                NO
                                RMT, INC.
                                      AQUEOUS  MEDIA
                                      ORGANIC  LIQUID
                                                       NOT  SPECIFIED
                                     YES       YES
                                ROY F. UESTON, INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
PESTICIDES
DIOXINS/FURANS
NONVOLATILE METALS
INORGANIC CYANIDES
ORGANIC CYANIDES
INORGANIC CORROSIVES
ORGANIC CORROSIVES
HALOGENATED VOLATILES
HALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
PCBs
                                                                                            YES       NO
                                WESTERN RESEARCH INSTITUTE
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUID
                                                       INORGANIC CYANIDES
                                                       NONHALOGENATED NONVOLATILES
                                     INP       INP
                                YEC INC
                                                                      NOT SPECIFIED    NOT SPECIFIED
                                                                                                                            YES       NO
PACT
                                MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                     AQUEOUS MEDIA
                                     SLUDGES
                                11-141
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
                                                                                                                            YES       YES

-------
 TREATMENT  TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH     PILOT
                                                                                                                            SCALE     SCALE
 PACT
 (continued)
MCNAHEE ADVANCED TECHNOLOGY, INC.
(continued)
 INORGANIC CORROSIVES
 INORGANIC CYANIDES
 NONHALOGENATED NONVOLATILES
 NONHALOGENATED VOLATILES
 NONVOLATILE METALS
 ORGANIC CORROSIVES
 ORGANIC CYANIDES
 OXIOIZERS
 REDUCERS
 VOLATILE METALS
                                VERSAR INC.
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUID
                                                       HALOGENATED NONVOLATILES
                                                       HALOGENATED VOLATILES
                                                       NONHALOGENATED NONVOLATILES
                                                       NONHALOGENATED VOLATILES
                                                       NONVOLATILE METALS
                                                       VOLATILE METALS
                                                                                                                            NO
                                                                                                                                      YES
PERVAPORATION
MEMBRANE TECHNOLOGY & RESEARCH,  INC
                                                                      AQUEOUS  MEDIA
                                                                      ORGANIC  LIQUID
NONHALOGENATED VOLATILES
HALOGENATED VOLATILES
                                                                                                                            YES
                                                                                                                                      YES
PHYSICAL SEPARATION
                                AUC INCORPORATED
                                                                      SOILS
                                                                                      NONVOLATILE METALS
                                                                                      RADIOACTIVE MATERIALS
                                                                                                                            YES
                                                                                                                                      NO
                                JACOBS ENGINEERING GROUP,  INC.
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                                      SEDIMENTS
                                      SLUDGES
                                      SOILS
INORGANIC CORROSIVES
NONVOLATILE METALS
ORGANIC CORROSIVES
VOLATILE METALS
                                                                                                                            YES
                                                                                                                                      NO
                                PITTSBURGH HIN&ENV.TECH.,  INC.
                                      SOILS
                                      OTHER  SOLIDS
NONVOLATILE METALS
VOLATILE METALS
                                                                                                                           YES
                                                                                                                                      YES
PHYSICAL TREATMENTS
                                ROY F.  UESTON,  INC.
                                      NOT  SPECIFIED
                                 11-142
                                                       HALOGENATED  VOLATILES
                                                                                                                            YES
                                                                                                                                      YES

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAHE                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                             BENCH      PILOT
                                                                                                                             SCALE      SCALE
PHYSICAL TREATMENTS
(continued)
ROY F. UESTON, INC.
(continued)
                                                                                       NONHALOGENATED VOLATILES
                                                                                       NONVOLATILE METALS
                                                                                       VOLATILE METALS
REVERSE OSMOSIS
                                APPLIED SURFACE TECHNOLOGY
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUIDS
                                                                      SLUDGES
                                                                      SOILS
                                                       INORGANIC CORROSIVES
                                                       OXIDIZERS
                                                       HALOGENATED NONVOLATILES
                                                       HALOGENATED VOLATILES
                                                       NONVOLATILE METALS
                                                       ORGANIC CYANIDES
                                                       INORGANIC CYANIDES
                                                                                                                            YES
                                                                                                                                      YES
                                CHEMENCO, INC.
                                E M & C ENGINEERING ASSOCIATES
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID

                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                                                       NOT SPECIFIED
                                                                                       DIOXINS/FURANS
                                                                                       HALOGENATED NONVOLATILES
                                                                                       HALOGENATED VOLATILES
                                                                                       INORGANIC CORROSIVES
                                                                                       INORGANIC CYANIDES
                                                                                       NONVOLATILE METALS
                                                                                       ORGANIC CYANIDES
                                                                                       OXIDIZERS
                                                                                       PCBs
                                                                                       PESTICIDES
                                                                                       REDUCERS
                                                                                       VOLATILE METALS
                                                                                            INP       INP
                                                                                                                            INP       INP
                                EARTH  TECHNOLOGY  CORP.
                                                                      AQUEOUS  MEDIA    NOT  SPECIFIED
                                                                      ORGANIC  LIQUID
                                GROUNDWATER  &  ENVIRONMENTAL  SERVICE    AQUEOUS  MEDIA    NOT  SPECIFIED
                                                                      SEDIMENTS
                                                                      SLUDGES
                                                                      SOILS
                                                                                            YES
                                                                                                      NO
                                                                                            INP       INP
                                                                 II-K3

-------
                       TABLE # 2 (CONTINUED)
TREATMENT TECHNOLOGY
REVERSE OSMOSIS
(continued)
COMPANY NAME
IT CORPORATION
MEDIA TREATED
AQUEOUS MEDIA
CONTAMINANT GROUPS
HALOGENATED NONVOLATILES
BENCH
SCALE
YES
PILOT
SCALE
NO
                                                       NONHALOGENATED NONVOLATILES
                                                       NONVOLATILE METALS
                                                       RADIOACTIVE MATERIALS
KSE, INC.
AQUEOUS MEDIA
ORGANIC LIQUID
HALOGENATED VOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
VOALTILE METALS
                                     YES       YES
MAECORP, INC.
AQUEOUS MEDIA
ORGANIC LIQUID
NONVOLATILE METALS
                                     YES        YES
HCNAMEE ADVANCED TECHNOLOGY, INC.
AQUEOUS MEDIA
SLUDGES
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
OXIDIZERS
REDUCERS
VOLATILE METALS
YES       YES
RADIAN CORPORATION
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                 HALOGENATED NONVOLATILES
                 HALOGENATED VOLATILES
                 NONHALOGENATED NONVOLATILES
                 NONHALOGENATED VOLATILES
                 NONVOLATILE METALS
                 ORGANIC CORROSIVES
                 ORGANIC CYANIDES
                 OXIDIZERS
                 PCBs
                 PESTICIDES
                 REDUCERS
                                                      YES
                                                                YES
                                 II-H4

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH     PILOT
                                                                                                                            SCALE     SCALE
REVERSE OSMOSIS
(continued)
RADIAN CORPORATION
(continued)
VOLATILE METALS
                                RIVER OAK ASSOCIATES
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                                                                                       HALOGENATED VOLATILES
                                                                                       HALOGENATED NONVOLATILES
                                                                                       NONHALOGENATED NONVOLATILES
                                                                                                                            YES
                                                                                                                                      NO
                                RMT,  INC.
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                                                                                       NOT  SPECIFIED
                                                                                                                            YES
                                                                                                                                      YES
                                RNK ENVIRONMENTAL,  INC.
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                                                                                       NOT  SPECIFIED
                                                                                                                            YES
                                                                                                                                      YES
                                VERSAR INC.
                                                                      AQUEOUS  MEDIA
                                                                      ORGANIC  LIQUID
                                                       DIOXINS/FURANS
                                                       HALOGENATED  NONVOLATILES
                                                       HALOGENATED  VOLATILES
                                                       NONHALOGENATED  NONVOLATILES
                                                       NONHALOGENATED  VOLATILES
                                                       NONVOLATILE  METALS
                                                       ORGANIC CORROSIVES
                                                       ORGANIC CYANIDES
                                                       PCBs
                                                       PESTICIDES
                                                       VOLATILE METALS
                                                                                                                            YES
                                                                                                                                      NO
                               WESTERN RESEARCH  INSTITUTE
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                       INORGANIC CYANIDES
                                                       NONHALOGENATED NONVOLATILES
                                                       NONHALOGENATED VOLATILES
                                                       NONVOLATILE METALS
                                                       ORGANIC CYANIDES
                                                                                                                           YES       YES
                               ZENON ENVIRONMENTAL
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                 II-H5
                                                      DIOXINS/FURANS
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      INORGANIC CORROSIVES
                                                      INORGANIC CYANIDES
                                                      NONHALOGENATED NONVOLATILES
                                                      NONHALOGENATED VOLATILES
                                                                                                                           YES       YES

-------
 TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT  GROUPS
                                                                                                                            BENCH     PILOT
                                                                                                                            SCALE     SCALE
REVERSE OSMOSIS
(continued)
ZENON ENVIRONMENTAL
(continued)
                                                                                       PCBs
                                                                                       PESTICIDES
                                                                                       NONVOLATILES METALS
                                                                                       ORGANIC CORROSIVES
                                                                                       ORGANIC CYANIDES
SEDIMENTATION
                                MAECORP, INC.
                                ROY F.  UESTON, INC.
                                     AQUEOUS  MEDIA
                                     ORGANIC  LIQUID

                                     AQUEOUS  MEDIA
                                     ORGANIC  LIQUID
                                                       NOT  SPECIFIED
PESTICIDES
DIOXINS/FURANS
NONVOLATILE METALS
INORGANIC CYANIDES
ORGANIC CYANIDES
INORGANIC CORROSIVES
ORGANIC CORROSIVES
HALOGENATED VOLATILES
HALOGENATED NONVOLATILES
NONHALOGEHATED VOLATILES
NONHALOGENATED NONVOLATILES
PCBs
                                                                                            YES       YES
                                     YES        YES
SOIL WASHING
                                APPLIED  SURFACE TECHNOLOGY
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUIDS
                                                                     SLUDGES
                                                                     SOILS
                                                      INORGANIC CORROSIVES
                                                      OXIOIZERS
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATEO VOLATILES
                                                      NONVOLATILE METALS
                                                      ORGANIC CYANIDES
                                                      INORGANIC CYANIDES
                                                                                                                            YES        YES
                                BIOTROL,  INC.
                                CAA BIOREMEDIATION  SYSTEMS
                                     SOILS
                                                                     SEDIMENTS
                                                                 11-146
HALOGENATED VOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS

HALOGENATED NONVOLATILES
                                                                                                                            NO
                                                                                                                                      YES
                                                                                                                            YES        NO

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH
                                                                                                                            SCALE
                                                                                                      PILOT
                                                                                                      SCALE
SOIL WASHING
(continued)
CAA BI.OREMEDIATION SYSTEMS
(continued)
SLUDGES
SOILS
HALOGENATED VOLATILES
NONHALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
PCBs
PESTICIDES
                                CHEMENCO,  INC.
                                      SOILS
                                      SLUDGES
                                      SEDIMENTS
                                      OTHER SOLIDS
                                                       NOT  SPECIFIED
                                                                                            INP
                                                                                                                                      INP
                                CYTO CULTURE  ENVIRON.  BIOTECH.
                                                                      SEDIMENTS         NONHALOGENATED VOLATILES
                                                                      SLUDGES           ORGANIC  CYANIDES
                                                                      SOILS             PCBs
                                                                                       PESTICIDES
                                                                                                                            YES
                                                                                                                                      YES
                                D D  ENVIRONMENTAL
                                                                      SEDIMENTS        HALOGENATED  NONVOLATILES
                                                                      SLUDGES          HALOGENATED  VOLATILES
                                                                      SOILS            NONHALOGENATED NONVOLATILES
                                                                                      NONHALOGENATED VOLATILES
                                                                                      NONVOLATILE  METALS
                                                                                                                            YES
                                                                                                                                      YES
                               DETOX,  INC.
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                                      SEDIMENTS
                                      SLUDGES
                                      SOILS
                 HALOGENATED  VOLATILES
                 HALOGENATED  NONVOLATILES
                 NONHALOGENATED VOLATILES
                 NONHALOGENATED NONVOLATILES
                 PESTICIDES
                 DIOXINS/FURANS
                 ORGANIC CYANIDES
                 ORGANIC CORROSIVES
                 VOLATILE METALS
                 NONVOLATILE  METALS
                                                                                                                            YES
                                                                                                                                      YES
                               EARTH TECHNOLOGY CORP.
                                                                     SOILS
                                                                     SEDIMENTS
                                                                     SLUDGES
                                                                                      NOT SPECIFIED
                                                                                                                           YES
                                                                                                                                      NO
                                                                II-H7

-------
TREATMENT TECHNOLOGY
                       TABLE  # 2  (CONTINUED)

      COMPANY NAME                   MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                           BENCH     PILOT
                                                                                                                           SCALE     SCALE
SOIL WASHING
(continued)
ENSOTECH,  INC.
                                                                     OTHER SOLIDS     HALOGENATED NONVOLATILES
                                                                     SEDIMENTS        HALOGENATED VOLATILES
                                                                     SLUDGES          INORGANIC CORROSIVES
                                                                     SOILS            INORGANIC CYANIDES
                                                                                      NONHALOGENATED NONVOLATILES
                                                                                      NONHALOGENATED VOLATILES
                                                                                      NONVOLATILE METALS
                                                                                      OXIDIZERS
                                                                                      REDUCERS
                                                                                           YES
                                                                                                     YES
                               ENVIRONMENTAL REMEDIATION, INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
HALOGENATED VOLATILES
NONHALOGENATED VOLATILES
PCBs
PESTICIDES
                                     YES
                                               NO
                               ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                                                     SEDIMENTS        HALOGENATED  NONVOLATILES
                                                                     SLUDGES          HALOGENATED  VOLATILES
                                                                     SOILS            NONHALOGENATED  NONVOLATILES
                                                                                      NONHALOGENATED  VOLATILES
                                                                                      NONVOLATILE  METALS
                                                                                           INP
                                                                                                     INP
                               GROUNDUATER & ENVIRONMENTAL  SERVICE
                                                                    AQUEOUS  MEDIA
                                                                    SEDIMENTS
                                                                    SLUDGES
                                                                    SOILS
                                                      NOT SPECIFIED
                                                                                                                           INP
                                                                                                                                     INP
                               HARMON ENVIRONMENTAL  SERVICES,  INC.   SOILS
                               I IT RESEARCH INST
                                                                    SLUDGES
                                                                    OTHER SOLIDS
                                                                    SOILS
                                                      PCBs

                                                      DIOXINS/FURANS
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      ASBESTOS
                                                      NONVOLATILE METALS
                                                      NONHALOGENATED NONVOLATILES
                                                      PCBs
                                                      PESTICIDES
                                     YES

                                     INP
YES

INP
                                                                11-148

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH     PILOT
                                                                                                                            SCALE     SCALE
SOIL WASHING
(continued)
I IT RESEARCH INST
(continued)
 VOLATILE METALS
 ORGANIC CYANIDES
 ORGANIC CORROSIVES
 OXIDIZERS
                                INTERNATIONAL PROCESS RESEARCH CORP   SOILS
                                                       HALOGENATED NONVOLATILES
                                                       HALOGENATED VOLATILES
                                                       INORGANIC CORROSIVES
                                                       INORGANIC CYANIDES
                                                       NONHALOGENATED VOLATILES
                                                       NONVOLATILE METALS
                                                       ORGANIC  CORROSIVES
                                                       ORGANIC  CYANIDES
                                                       OXIDIZERS
                                                       REDUCERS
                                                                                                                            YES       YES
                                IT  CORPORATION
                                                                      SOILS
                                                      DIOXINS/FURANS
                                                      NONVOLATILE METALS
                                                                                                                            YES       NO
                                O'BRIEN  AND GERE ENGINEERS,  INC.
                                      SOILS
                                      SLUDGES
NONVOLATILE METALS
VOLATILE METALS
                                                                                                                            YES       NO
                                OHM CORPORATION
                                                                      SOILS
                                                                      ORGANIC LIQUID
                                                                      OTHER SOLIDS
                                                      DIOXINS/FURANS
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      NONHALOGENATED VOLATILES
                                                      NONVOLATILE METALS
                                                      NONHALOGENATED NONVOLATILES
                                                      PCBs
                                                      PESTICIDES
                                                      VOLATILE METALS
                                                                                                                            YES       YES
                               PITTSBURGH MIN&ENV.TECH.,  INC.
                                     SOILS
                                     SLUDGES
                                     SEDIMENTS
NONVOLATILE METALS
VOLATILE METALS
                                                                                           YES        YES
                               REMEDIATION  TECHNOLOGIES
                                                                      SEDIMENTS
                                                                 II-H9
                                                                                      HALOGENATED NONVOLATILES
                                                                                                                            YES        NO

-------
TREATMENT TECHNOLOGY
                       TABLE # 2  (CONTINUED)

      COMPANY NAME                   MEDIA TREATED
                                                                                         CONTAMINANT GROUPS
                                                                                                                           BENCH     PILOT
                                                                                                                           SCALE     SCALE
SOIL WASHING
(continued)
REMEDIATION TECHNOLOGIES
(continued)
                                                                     SOILS
                                                                     SLUDGES
 HALOGENATED VOLATILES
 INORGANIC  CORROSIVES
 INORGANIC  CYANIDES
 NONHALOGENATED VOLATILES
 NONHALOGENATED NONVOLATILES
 NONVOLATILE METALS
 VOLATILE METALS
                               RMC ENV & ANALYTICAL LABORATORIES
                                                                     SEDIMENTS        DIOXINS/FURANS
                                                                     SLUDGES          HALOGENATED NONVOLATILES
                                                                     SOILS            HALOGENATED VOLATILES
                                                                                      NONHALOGENATED NONVOLATILES
                                                                                      NONHALOGENATED VOLATILES
                                                                                      NONVOLATILE METALS
                                                                                      ORGANIC  CORROSIVES
                                                                                      ORGANIC  CYANIDES
                                                                                      PCBs
                                                                                      PESTICIDES
                                                                                                                           YES       YES
                               RMT, INC.
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
NOT SPECIFIED
                                                                                           YES       YES
                               RNK ENVIRONMENTAL,  INC.
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
                                     OTHER SOLIDS
                                                      NOT SPECIFIED
                                                                                           YES       NO
                               ROY F.  WESTON,  INC.
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
PESTICIDES
DIOXINS/FURANS
NONVOLATILE METALS
INORGANIC CYANIDES
INORGANIC CORROSIVES
ORGANIC CYANIDES
ORGANIC CORROSIVES
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
                                                                                           YES       NO
                                                                11-150

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH
                                                                                                                            SCALE
                                                                                                      PILOT
                                                                                                      SCALE
SOIL WASHING
(continued)
ROY F. UESTON, INC.
(continued)
                                SYBRON CHEMICALS,  INC.
                 NONHALOGENATED NONVOLATILES
                 NONHALOGENATEO VOLATILES
                 PCBs

OTHER SOLIDS     HALOGENATED NONVOLATILES
SEDIMENTS        HALOGENATED VOLATILES
SLUDGES          INORGANIC CYANIDES
SOILS            NONHALOGENATED VOLATILES
                 NONVOLATILE METALS
                 ORGANIC CYANIDES
                                                                                            YES
                                                                                                      YES
                                TREATEK,  INC.
                                      AQUEOUS  MEDIA
                                      ORGANIC  LIQUID
                                      SLUDGES
                                      SOILS
                 HALOGENATED NONVOLATILES
                 HALOGENATED VOLATILES
                 NONHALOGENATED NONVOLATILES
                 NONHALOGENATED VOLATILES
                 NONVOLATILE METALS
                 PCBs
                 PESTICIDES
YES
          NO
                               WASTE STREAM TECHNOLOGY,  INC.

                               WESTERN RESEARCH  INSTITUTE
                                      SOILS

                                      AQUEOUS MEDIA
                                      SEDIMENTS
                                      SLUDGES
                                      SOILS
                 NOT  SPECIFIED

                 NONHALOGENATED  NONVOLATILES
                 NONVOLATILE  METALS
                 PCBs
YES

NO
NO

YES
                               WESTINGHOUSE SCIENCE & TECHNOLOGY
                                                                     SOILS
                                                                                      NONVOLATILE METALS
                                                                                      ORGANIC CORROSIVES
                                                                                      PCBs
                                                                                      RADIOACTIVE MATERIALS
                                                                                                                            YES
                                                                                                                                      YES
                               WOODWARD CLYDE CONSULTANTS
                                                                     SEDIMENTS
                                                                     SLUDGES
                                                                     SOILS
                                                                     OTHER SOLIDS
                                                                                      NOT SPECIFIED
                                                                                                                            YES
                                                                                                      YES
                                                                11-151

-------
TREATMENT TECHNOLOGY
                 TABLE # 2 (CONTINUED)

COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                           BENCH
                                                                                                                           SCALE
                                               PILOT
                                               SCALE
SOLVENT RECOVERY
                                AAA CSI
                               CAMBRIDGE SCIENTIFIC. INC.

                               CHEMENCO, INC.


                               DETOX. INC.
                               E M & C ENGINEERING ASSOCIATES
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                     SOILS
                                                 HALOGENATED NONVOLATILES
                                                 HALOGENATED VOLATILES
                                                 INORGANIC CORROSIVES
                                                 NONHALOGENATED NONVOLATILES
                                                 NONHALOGENATED VOLATILES
                                                 NONVOLATILE METALS
                                                 ORGANIC CORROSIVES
                                                 OXID1ZERS
                                                 PCBs
                                                 PESTICIDES
                                                 REDUCERS
                                                 VOLATILE METALS

                                                 NONHALOGENATED VOLATILES
                                                                                                                           NO
                                                                                                                                     NO
                               AQUEOUS  MEDIA    NOT SPECIFIED
                               ORGANIC  LIQUID
                               AQUEOUS  MEDIA
                               ORGANIC  LIQUID
                               SEDIMENTS
                               SLUDGES
                               SOILS
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
HALOGENATED VOLATILES
HALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
PESTICIDES
DIOXINS/FURANS
ORGANIC CYANIDES
ORGANIC CORROSIVES
VOLATILE METALS
NONVOLATILE METALS

DIOXINS/FURANS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONVOLATILE METALS
ORGANIC CYANIDES
OXIDIZERS
                                      INP        1NP

                                      INP        INP


                                      YES        YES
                                                                                                                           INP       INP
                                                                11-152

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH     PILOT
                                                                                                                            SCALE     SCALE
SOLVENT RECOVERY
(continued)
E M & C ENGINEERING ASSOCIATES
(continued)
                                                                                       PCBs
                                                                                       PESTICIDES
                                                                                       REDUCERS
                                                                                       VOLATILE METALS
                                I IT RESEARCH INST
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUID
                                                                      SOILS
                                                                      OTHER SOLIDS
                                                                      SEDIMENTS
                                                      DIOXINS/FURANS
                                                      HALOGENATED  NONVOLATILES
                                                      HALOGENATED  VOLATILES
                                                      RADIOACTIVE  MATERIALS
                                                      NONVOLATILE  METALS
                                                      NONHALOGENATED NONVOLATILES
                                                      PCBS
                                                      PESTICIDES
                                                      VOLATILE METALS
                                                      ORGANIC CYANIDES
                                                      ORGANIC CORROSIVES
                                                      OXIDIZERS
                                                                                            INP       INP
                                INTERNATIONAL  PROCESS RESEARCH CORP
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUID
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      INORGANIC CORROSIVES
                                                      INORGANIC CYANIDES
                                                      NONHALOGENATED VOLATILES
                                                      NONVOLATILE METALS
                                                      ORGANIC CORROSIVES
                                                      ORGANIC CYANIDES
                                                      OXIDIZERS
                                                      REDUCERS
                                      YES        YES
                                IT  CORPORATION
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                      HALOGENATED VOLATILES
                                                      NONHALOGENATED VOLATILES
                                     YES        YES
                               KSE,  INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
HALOGENATED VOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
VOALTILE METALS
YES       YES
                                                                 11-153

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT  GROUPS
                                                                                                                           BENCH
                                                                                                                           SCALE
                                                PILOT
                                                SCALE
SOLVENT RECOVERY
(continued)
MAECORP, INC.
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                       NOT  SPECIFIED
                                                                                                                           YES
                                                                                                                                     YES
                               MCNAMEE ADVANCED TECHNOLOGY, INC.
                               O'BRIEN AND GERE ENGINEERS, INC.
                                      AQUEOUS MEDIA
                                      SLUDGES
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
OXIOIZERS
REDUCERS
VOLATILE METALS

HALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
                                                                                            YES
                                                                                                      YES
                                                                                            YES       NO
                               OHM CORPORATION
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                     SLUDGES
                                                      DIOX1NS/FURANS
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      NONHALOGENATED VOLATILES
                                                      NONVOLATILE METALS
                                                      NONHALOGENATED NONVOLATILES
                                                      PCBs
                                                      PESTICIDES
                                                      VOLATILE METALS
                                                                                                                           YES       YES
                               RMT,  INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                                                      NOT SPECIFIED
                                                                                           YES        YES
                               WOODWARD CLYDE CONSULTANTS
                                                                     AQUEOUS  MEDIA
                                                                     ORGANIC  LIQUID
                                                                                      NOT  SPECIFIED
                                                                                                                           YES       YES

-------
TREATMENT TECHNOLOGY
                                                       TABLE # 2 (CONTINUED)

                                      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                            BENCH     PILOT
                                                                                            SCALE     SCALE
SPRAY DRYING
WESTERN RESEARCH INSTITUTE
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUID
                                                                                       NONHALOGENATED NONVOLATILES
                                                                                                                            INP
                                                                                                                                      INP
STRIPPING
                                AAA CSI
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
OXIDIZERS
PCBs
PESTICIDES
REDUCERS
VOLATILE METALS
                                                                                                                            NO
                                                                                                                                      NO
                                ANDCO ENVIRONMENTAL  PROCESSES,  INC.    NOT  SPECIFIED     NOT  SPECIFIED
                                APPLIED  SURFACE  TECHNOLOGY
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUIDS
                                                                      SLUDGES
                                                                      SOILS
                                BIOSCIENCE MANAGEMENT,  INC.
                                                                     ORGANIC LIQUID
                                                       INORGANIC CORROSIVES
                                                       OXIDIZERS
                                                       HALOGENATED NONVOLATILES
                                                       HALOGENATED VOLATILES
                                                       NONVOLATILE METALS
                                                       ORGANIC  CYANIDES
                                                       INORGANIC CYANIDES

                                                       DIOXINS/FURANS
                                                       HALOGENATED NONVOLATILES
                                                       HALOGENATED VOLATILES
                                                       INORGANIC CYANIDES
                                                       NONHALOGENATED  NONVOLATILES
                                                       NONHALOGENATED  VOLATILES
                                                       ORGANIC  CYANIDES
                                                       ORGANIC  CORROSIVES
                                                       PCBs
                                                                                            YES       NO

                                                                                            YES       YES
                                                                                                                            YES
                                                                                                                                      YES
                                                                 11-155

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT  GROUPS
                                                                                                                            BENCH      PILOT
                                                                                                                            SCALE      SCALE
STRIPPING
(continued)
CAA BIOREMEDIATION SYSTEMS
                               CHEMENCO,  INC.
                               COMBUSTION ENGINEERING, INC.
                               DETOX, INC.
                               E M & C ENGINEERING ASSOCIATES
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID

                                      AQUEOUS MEDIA
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
 HALOGENATED  NONVOLATILES
 HALOGENATED  VOLATILES
 NONHALOGENATED  NONVOLATILES
 NONHALOGENATED  VOLATILES
 PCBS
 PESTICIDES

 NOT SPECIFIED
HALOGENATED VOLATILES
NONHALOGENATED VOLATILES

HALOGENATED VOLATILES
HALOGENATED NONVOLATILES
NOMHALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
PESTICIDES
DIOXINS/FURANS
ORGANIC CYANIDES
ORGANIC CORROSIVES
VOLATILE METALS
NONVOLATILE METALS

DIOXINS/FURANS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONVOLATILE METALS
ORGANIC CYANIDES
OXIDIZERS
PCBS
PESTICIDES
REDUCERS
VOLATILE METALS
                                                                                                                            YES        NO
                                                                                            INP       INP
                                                                                            YES       YES
                                                                                            YES        YES
                                                                                                                           INP       INP
                                                                11-156

-------
                        TABLE # 2 (CONTINUED)
TREATMENT TECHNOLOGY COMPANY NAME
STRIPPING EARTH TECHNOLOGY CORP.
(continued)
MEDIA TREATED CONTAMINANT GROUPS
AQUEOUS MEDIA NOT SPECIFIED
ORGANIC LIQUID
BENCH
SCALE
YES
PILOT
SCALE
NO
 ENSOTECH,  INC.
 ORGANIC  LIQUID
 AQUEOUS  MEDIA
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
OXIDIZERS
REDUCERS
                                                       YES
YES
ENVIRONMENTAL RESOURCE ASSOCIATES
                                      AQUEOUS MEDIA
                                                       HALOGENATED NONVOLATILES
                                                       HALOGENATED VOLATILES
                                                       INORGANIC CORROSIVES
                                                       NONHALOGENATED NONVOLATILES
                                                       NONHALOGENATED VOLATILES
                                                       NONVOLATILE METALS
                                                       YES        YES
ENVIRONMENTAL TECHNOLOGY SOUTHEAST   .AQUEOUS MEDIA
                                                       HALOGENATED NONVOLATILES
                                                       HALOGENATED VOLATILES
                                                       NONHALOGENATED NONVOLATILES
                                                       NONHALOGENATED VOLATILES
                                                       NONVOLATILE METALS
                                                       INP        INP
ENURIGHT ENVIRONMENTAL, INC.
AQUEOUS MEDIA
ORGANIC LIQUID
RADIOACTIVE MATERIALS
                                     YES       YES
GENERAL PHYSICS CORPORATION
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                                 11-157
                 HALOGENATED NONVOLATILES
                 HALOGENATED VOLATILES
                 NONHALOGENATED NONVOLATILES
                 NONHALOGENATED VOLATILES
                 NONVOLATILE METALS
                 ORGANIC CORROSIVES
                 ORGANIC CYANIDES
                 PCBs
                                     YES       YES

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED        CONTAMINANT  GROUPS
                                                                                                                           BENCH
                                                                                                                           SCALE
                                                PILOT
                                                SCALE
STRIPPING
(continued)
GENERAL PHYSICS CORPORATION
(continued)

GROUNDUATER & ENVIRONMENTAL SERVICE
                               HUNTER BIOSCIENCES, INC.
                                     AQUEOUS MEDIA
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS

                                     AQUEOUS MEDIA
                                                                                      PESTICIDES

                                                                                      NOT SPECIFIED
                                                                                                                           INP
                                                                                                                                     IMP
                                                      HALOGENATED VOLATILES
                                                      NONHALOGENATED NONVOLATILES
                                                      NONHALOGENATED VOLATILES
                                                                                           YES        INP
                               HUNTER SERVICES, INC.
                               I IT RESEARCH INST
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                                                                     AQUEOUS  MEDIA
                                                                     ORGANIC  LIQUID
                                                                     SOILS
                                                                     OTHER SOLIDS
                                                                     SEDIMENTS
DIOXINS/FURANS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
NONHALOGENATEO NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
OXIDIZERS
PCBs
PESTICIDES
REDUCERS

DIOXINS/FURANS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
RADIOACTIVE MATERIALS
NONVOLATILE METALS
NONHALOGENATED NONVOLATILES
PCBs
PESTICIDES
VOLATILE METALS
ORGANIC CYANIDES
ORGANIC CORROSIVES
OXIDIZERS
                                                                                           YES        YES
                                                                                                                           INP       INP
                                                                11-158

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH     PILOT
                                                                                                                            SCALE     SCALE
STRIPPING
(continued)
INTERNATIONAL PROCESS RESEARCH CORP
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
 HALOGENATED  NONVOLATILES
 HALOGENATED  VOLATILES
 INORGANIC  CORROSIVES
 INORGANIC  CYANIDES
 NONHALOGENATED VOLATILES
 NONVOLATILE  METALS
 ORGANIC CORROSIVES
 ORGANIC CYANIDES
 OXIDIZERS
 REDUCERS
YES       YES
                                IT CORPORATION
                                                                      AQUEOUS MEDIA
                                                                      SOILS
                                                       HALOGENATED VOLATILES
                                                       NONHALOGENATED  VOLATILES
                                                       PESTICIDES
                                                                                                                            YES
                                                                                                                                      YES
                                KSE,  INC.
                                      AQUEOUS  MEDIA
                                      ORGANIC  LIQUID
HALOGENATED VOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
VOLATILE METALS
                                                                                                                            YES
                                                                                                                                      YES
                                MAECORP,  INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
HALOGENATED VOLATILES
NONHALOGENATED VOLATILES
VOLATILE METALS
                                                                                                                            YES
                                                                                                                                      YES
                               MCNAMEE ADVANCED  TECHNOLOGY,  INC.
                                     AQUEOUS MEDIA
                                     SLUDGES
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
OXIDIZERS
REDUCERS
VOLATILE METALS
                                                                                            YES
                                                                                                      YES
                                                                 11-159

-------
                        TABLE # 2 (CONTINUED)
TREATMENT TECHNOLOGY
STRIPPING
(continued)
COMPANY NAME
NATIONAL SANITATION FOUNDATION
MEDIA TREATED
NOT SPECIFIED
CONTAMINANT GROUPS
NOT SPECIFIED
BENCH
SCALE
INP
PILOT
SCALE
INP
O'BRIEN AND GERE ENGINEERS,  INC.
AQUEOUS MEDIA
ORGANIC LIQUID
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
                                                      YES
                                                                YES
OHM CORPORATION
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                                      SLUDGES
                 DIOXINS/FURANS
                 HALOGENATED NONVOLATILES
                 HALOGENATED VOLATILES
                 NONHALOGENATED VOLATILES
                 NONVOLATILE METALS
                 NONHALOGENATED NONVOLATILES
                 PCBs
                 PESTICIDES
                 VOLATILE METALS
                                                                                            YES
                                                                                                      YES
RADIAN CORPORATION
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                 NALOGENATED NONVOLATILES
                 HALOGENATED VOLATILES
                 NONHALOGENATED NONVOLATILES
                 NONHALOGENATED VOLATILES
                 NONVOLATILE METALS
                 ORGANIC CORROSIVES
                 ORGANIC CYANIDES
                 OXIDIZERS
                 PCBs
                 PESTICIDES
                 REDUCERS
                 VOLATILE METALS
                                                                                            YES
                                                                                                      YES
REMEDIATION TECHNOLOGIES
                                      SOILS             HALOGENATED NONVOLATILES
                                      SLUDGES           HALOGENATED VOLATILES
                                      SEDIMENTS         NONHALOGENATED  NONVOLATILES
                                      OTHER  SOLIDS      NONHALOGENATED  VOLATILES
                                                       ORGANIC  CORROSIVES
                                                       ORGANIC  CYANIDES
                                                                                            YES
                                                                                                      INP
                                 11-160

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH
                                                                                                                            SCALE
                                                                                                      PILOT
                                                                                                      SCALE
STRIPPING
(continued)
RIVER OAK ASSOCIATES
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
 HALOGENATED NONVOLATILES
 HALOGENATED VOLATILES
 INORGANIC  CORROSIVES
 INORGANIC  CYANIDES
 NONVOLATILE METALS
 OXIDIZERS
 RADIOACTIVE MATERIALS
 REDUCERS
 VOLATILE METALS
                                      YES
                                                                                                                                      NO
                                RMT,  INC.
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                                                      NOT  SPECIFIED
                                                                                            YES        YES
                               ROY  F. WESTON.  INC.
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
PESTICIDES
DIOXINS/FURANS
NONVOLATILE METALS
INORGANIC CYANIDES
ORGANIC CYANIDES
INORGANIC CORROSIVES
ORGANIC CORROSIVES
HALOGENATED VOLATILES
HALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
PCBs
                                                                                            YES        YES
                               TREATEK, INC.
                                     AQUEOUS MEDIA
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
PCBs
PESTICIDES
                                                                                           YES
                                                                                                     NO
                               VERSAR INC.
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                11-161
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      NONHALOGENATED NONVOLATILES
                                                                                                                           NO
                                                                                                                                     YES

-------
 TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                     BENCH     PILOT
                                     SCALE     SCALE
STRIPPING
(continued)
VERSAR INC.
(continued)
NONHALOGENATED VOLATILES
NONVOLATILE METALS
VOLATILE METALS
                                WESTERN RESEARCH INSTITUTE
                                WOODWARD CLYDE CONSULTANTS
                                YEC INC
                                ZIMPRO PASSAVANT
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CYANIDES
                                                                                                                            YES       YES
                                      AQUEOUS MEDIA    NOT SPECIFIED
                                      ORGANIC LIQUID

                                      NOT  SPECIFIED    NOT SPECIFIED

                                      AQUEOUS MEDIA    NOT SPECIFIED
                                      ORGANIC LIQUID
                                     YES


                                     YES

                                     YES
YES


NO

YES
ULTRAFILTRATION
                                AEA TECHNOLOGY
                                APPLIED  SURFACE  TECHNOLOGY
                                KSE,  INC.
                                     AQUEOUS  MEDIA
                                     ORGANIC  LIQUID
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS

                                     AQUEOUS  MEDIA
                                     ORGANIC  LIQUIDS
                                     SLUDGES
                                     SOILS
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                                                                 11-162
                                                                                       RADIOACTIVE  MATERIALS
                                                                                                                            YES
                                                                                                                                      YES
INORGANIC CORROSIVES
OXIDIZERS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CYANIDES
INORGANIC CYANIDES

HALOGENATED VOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
VOLATILE METALS
                                                                                                                            YES       YES
                                                                                                                            YES
                                                                                                                                      YES

-------
 TREATMENT  TECHNOLOGY
                        TABLE  # 2 (CONTINUED)

       COMPANY  NAME                     MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH
                                                                                                                            SCALE
                                                                                                       PILOT
                                                                                                       SCALE
 UV/DEEP  TREATMENT
                                 THORNE ENVIRONMENTAL,  INC.
                                      AQUEOUS MEDIA
                                                       HALOGENATED VOLATILES
                                                       HALOGENATED NONVOLATILES
                                                       NONHALOGENATED VOLATILES
                                                       NONHALOGENATED NONVOLATILES
                                                       PCBs
                                                       PESTICIDES
                                                       DIOXINS/FURANS
                                                       ORGANIC CYANIDES
                                                       INORGANIC CYANIDES
                                                       OXIDIZERS
                                                       REDUCERS
                                                      YES
                                                                NO
UV/HYDROGEN PEROXIDE
ULTROX INTERNATIONAL
                                                                      AQUEOUS MEDIA
                                                       HALOGENATED VOLATILES
                                                       PCBs
                                                       PESTICIDES
                                                                                                                            YES       YES
UV/OXIDATION
COMBUSTION ENGINEERING, INC.
                                KEYSTONE ENVIRONMENTAL RESOURCES
                                MCNAMEE ADVANCED TECHNOLOGY. INC.
AQUEOUS MEDIA
ORGANIC LIQUID

SOILS

AQUEOUS MEDIA
SLUDGES
HALOGENATED VOLATILES
NONHALOGENATED VOLATILES

NOT SPECIFIED

HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
OXIDIZERS
REDUCERS
VOLATILE METALS
YES       YES


YES       YES

YES       YES
                                                                 11-163

-------
 TREATMENT  TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH
                                                                                                                            SCALE
                                                                 PILOT
                                                                 SCALE
 UV/OZONATION
                                I IT RESEARCH INST
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                                      SOILS
                                      OTHER SOLIDS
                                      SEDIMENTS
                 DIOXINS/FURANS
                 HALOGENATED NONVOLATILES
                 HALOGENATED VOLATILES
                 RADIOACTIVE MATERIALS
                 NONVOLATILE METALS
                 NONHALOGENATED NONVOLATILES
                 PCBs
                 PESTICIDES
                 VOLATILE METALS
                 ORGANIC CYANIDES
                 ORGANIC CORROSIVES
                 OXIDIZERS
                                                                                                                            YES
                                                                                                                                      YES
                                KEYSTONE ENVIRONMENTAL RESOURCES
                                ULTROX INTERNATIONAL
                                      AQUEOUS MEDIA    NOT SPECIFIED

                                      AQUEOUS MEDIA    HALOGENATED VOLATILES
                                                       PCBs
                                                       PESTICIDES
                                                      YES       NO

                                                      YES       YES
UV/PEROXIDATION
MAECORP, INC.
AQUEOUS MEDIA
ORGANIC LIQUID
                                                       HALOGENATED VOLATILES
                                                                                                                            YES       YES
UV/PHOTOLYSIS
O'BRIEN AND GERE ENGINEERS,  INC.
AQUEOUS MEDIA
ORGANIC LIQUID
SEDIMENTS
SLUDGES
SOILS
DIOXINS/FURANS
HALOGENATED NONVOLATILES
PCBs
                                                                                                                            YES       NO
VAPOR EXTRACTION
                                THORNE  ENVIRONMENTAL.  INC.
                                      SOILS
                                      AQUEOUS MEDIA
                 HALOGENATED VOLATILES
                 NONHALOGENATED VOLATILES
                                                                                                                            NO
                                                                                                                                      YES
                                                                 11-164

-------
                                                       TABLE # 2 (CONTINUED)

TREATMENT TECHNOLOGY                  COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS                BENCH     PILOT
                                                                                                                            SCALE     SCALE

VAPOR SEPARATION                MEMBRANE TECHNOLOGY & RESEARCH, INC
                                                                      NOT SPECIFIED    HALOGENATED VOLATILES                YES       YES
                                                                                       NONHALOGENATED VOLATILES


WASHING                         AEA TECHNOLOGY                        AQUEOUS MEDIA    RADIOACTIVE MATERIALS                YES       YES
                                                                      ORGANIC LIQUID
                                                                      SEDIMENTS
                                                                      SLUDGES
                                                                      SOILS

-------
TREATMENT TECHNOLOGY
                                      COMPANY  NAME
TABLE # 2 (CONTINUED)

               MEDIA TREATED
                                                                                         CONTAMINANT GROUPS
                                                                                                                           BENCH
                                                                                                                           SCALE
                                                                               PILOT
                                                                               SCALE
THERMAL
ELECTROCHEMICAL INCINERATION    AEA  TECHNOLOGY
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                     SEDIMENTS
                                                                     SLUDGES
                                                                     SOILS
                                PESTICIDES
                                PCBs
                                                                                                                            INP
                                                                                                                                      INP
INCINERATION
                               AAA CSI
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                HALOGENATED  NONVOLATILES
                                HALOGENATED  VOLATILES
                                INORGANIC  CORROSIVES
                                NONHALOGENATED  NONVOLATILES
                                NONHALOGENATED  VOLATILES
                                NONVOLATILE  METALS
                                ORGANIC CORROSIVES
                                OXIDIZERS
                                PCBs
                                PESTICIDES
                                REDUCERS
                                VOLATILE METALS
                                                                                                                           NO
                                                                                                                                     NO
                               AAA CSI
                                                                     SEDIMENTS        HALOGENATED NONVOLATILES
                                                                     SLUDGES          HALOGENATED VOLATILES
                                                                     SOILS            INORGANIC CORROSIVES
                                                                                      NONHALOGENATED NONVOLATILES
                                                                                      NONHALOGENATED VOLATILES
                                                                                      NONVOLATILE METALS
                                                                                      ORGANIC CORROSIVES
                                                                                      OXIDIZERS
                                                                                      PCBS
                                                                                      PESTICIDES
                                                                                      REDUCERS
                                                                                      VOLATILE METALS
                                                                                                                           NO
                                                                                                                                     NO
                               AEA TECHNOLOGY
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                                     SEDIMENTS
                                                                11-166
                                                                                      RADIOACTIVE MATERIALS
                                                                                                                           YES       YES

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED
                                                                                          CONTAMINANT GROUPS
                                                      BENCH     PILOT
                                                      SCALE     SCALE
INCINERATION
(continued)
AEA TECHNOLOGY
(continued)
                                CHEMENCO,  INC.
                                CHEHENCO,  INC.
                                COMBUSTION ENGINEERING,  INC.



                                DIVERSIFIED ENGINEERING.  INC.

                                E M & C  ENGINEERING  ASSOCIATES
                               EARTH TECHNOLOGY CORP.
SLUDGES
SOILS

AQUEOUS MEDIA
ORGANIC LIQUID

OTHER SOLIDS
SOILS
SEDIMENTS
SLUDGES

SEDIMENTS
SLUDGES
SOILS
                                                       NOT  SPECIFIED
                                                                                      NOT SPECIFIED
                                                                                      NOT SPECIFIED
                                      NOT  SPECIFIED    RADIOACTIVE MATERIALS
                                                                     SLUDGES
                                                                     OTHER SOLIDS
                                                                     SOILS
                                                                     OTHER SOLIDS
                                                                     SEDIMENTS
                                                                     SLUDGES
                                                                     SOILS
                                                      DIOXINS/FURANS
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      INORGANIC CORROSIVES
                                                      INORGANIC CYANIDES
                                                      NONVOLATILE METALS
                                                      ORGANIC CYANIDES
                                                      OX1DIZERS
                                                      PCBs
                                                      PESTICIDES
                                                      REDUCERS
                                                      VOLATILE METALS

                                                      NOT SPECIFIED
                               ENERGY&ENVIRONMENTAL RESEARCH CORP.   SLUDGES
                                                                     SOILS
                                                                11-167
                                                      DIOXINS/FURANS
                                                      HALOGENATED NONVOLATILES
                                                                                                                            INP        INP
                                                                                                                            INP        INP
YES       YES



YES       INP

INP       INP
                                                                                                                           YES
                                                                                                                                     NO
                                                                                           YES
                                                                                                      YES

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED        CONTAMINANT  GROUPS
                                                                                                                           BENCH
                                                                                                                           SCALE
                                                                                                      PILOT
                                                                                                      SCALE
INCINERATION
(continued)
ENERGY&ENVIRONMENTAL  RESEARCH CORP.
(continued)
                               ENSOTECH, INC.
                               ENVIRONMENTAL TECHNOLOGY SOUTHEAST
ORGANIC LIQUID
                                     OTHER SOLIDS
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
                                                                     SEDIMENTS
                                                                     SLUDGES
                                                                     SOILS
                 HALOGENATED VOLATILES
                 INORGANIC CORROSIVES
                 NONHALOGENATED NONVOLATILES
                 NONHALOGENATED VOLATILES
                 NONVOLATILE METALS
                 ORGANIC CYANIDES
                 OXIDIZERS
                 PCBs
                 PESTICIDES
                 REDUCERS

                 HALOGENATED NONVOLATILES
                 HALOGENATED VOLATILES
                 INORGANIC CORROSIVES
                 INORGANIC CYANIDES
                 NONHALOGENATED NONVOLATILES
                 NONHALOGENATED VOLATILES
                 NONVOLATILE METALS
                 OXIDIZERS
                 REDUCERS

                 HALOGENATED NONVOLATILES
                 HALOGENATED VOLATILES
                 NONHALOGENATED NONVOLATILES
                 NONHALOGENATED VOLATILES
                 NONVOLATILE METALS
                                                                                                                           YES
                                                                                                                                     YES
                                                                                                                           INP
                                                                                                                                     INP
                               HAZANSWERS,  INC.
                                     NOT SPECIFIED
                               INTERNATIONAL  PROCESS RESEARCH CORP   SOILS
                 NOT  SPECIFIED

                 HALOGENATED  NONVOLATILES
                 HALOGENATED  VOLATILES
                 INORGANIC  CORROSIVES
                 INORGANIC  CYANIDES
                 NONHALOGENATED  VOLATILES
                 NONVOLATILE  METALS
                 ORGANIC CORROSIVES
                 ORGANIC CYANIDES
INP

YES
INP

YES
                                                                11-168

-------
                        TABLE  #  2  (CONTINUED)
TREATMENT TECHNOLOGY
INCINERATION
(continued)
COMPANY NAME MEDIA TREATED
INTERNATIONAL PROCESS RESEARCH CORP
(continued)
CONTAMINANT GROUPS
OXIDIZERS
REDUCERS
BENCH PILOT
SCALE SCALE

 JACOBS  ENGINEERING GROUP,  INC.

 HCNAMEE ADVANCED  TECHNOLOGY,  INC.
NOT SPECIFIED    NOT SPECIFIED
SLUDGES
SOILS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
OXIDIZERS
REDUCERS
VOLATILE METALS
                                                                                             INP
                                                      YES
                                                                                                      INP
                                                                YES
MIDWEST RESEARCH INSTITUTE
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                 PCBs
                 NONHALOGENATED NONVOLATILES
                 NONHALOGENATED VOLATILES
                 HALOGENATED VOLATILES
                 HALOGENATED NONVOLATILES
                                                                                            YES
                                                                                                      YES
OGDEN ENVIRONMENTAL SERVICES, INC.
AQUEOUS MEDIA
ORGANIC LIQUID
OTHER SOLIDS
SEDIMENTS
SLUDGES
                 NOT SPECIFIED
                                                      YES
                                                                                                      YES
OHM CORPORATION
                                      SOILS
                                      ORGANIC LIQUID
                                      OTHER SOLIDS
                                 11-169
                 DIOXINS/FURANS
                 HALOGENATED NONVOLATILES
                 HALOGENATED VOLATILES
                 NONHALOGENATED VOLATILES
                 NONVOLATILE METALS
                 NONHALOGENATED NONVOLATILES
                 PCBs
                                     YES
                                                                                                      YES

-------
TREATMENT TECHNOLOGY
                                                       TABLE # 2  (CONTINUED)

                                      COMPANY  NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                            BENCH
                                                                                            SCALE
                                               PILOT
                                               SCALE
INCINERATION
(continued)
OHM CORPORATION
(continued)
PESTICIDES
VOLATILE METALS
                                RADIAN CORPORATION
                                                                     SEDIMENTS
                                                                     SLUDGES
                                                                     SOILS
                                                                     ORGANIC LIQUIDS
                                                       PCBs
                                                       PESTICIDES
                                                       VOLATILE METALS
                                                       NONHALOGENATED VOLATILES
                                                       HALOGENATED VOLATILES
                                                                                                                           YES
                                                                                                                                     YES
                               RMC ENV & ANALYTICAL  LABORATORIES
                                      SEDIMENTS        DIOXINS/FURANS
                                      SLUDGES           HALOGENATED NONVOLATILES
                                      SOILS             HALOGENATED VOLATILES
                                                       NONHALOGENATED NONVOLATILES
                                                       NONHALOGENATED VOLATILES
                                                       NONVOLATILE METALS
                                                       ORGANIC CORROSIVES
                                                       ORGANIC CYANIDES
                                                       PCBs
                                                       PESTICIDES
                                                                                                                            INP
                                                                                                                                      INP
                               RMT, INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
                                                                                      NOT SPECIFIED
                                                                                                                           YES       YES
                               RMT, INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                                                                                      NOT SPECIFIED
                                                                                                                           YES       YES
                               ROY F. WESTON, INC.
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
                                                                11-170
PESTICIDES
DIOXINS/FURANS
NONVOLATILE METALS
VOLATILE METALS
PCBs
HALOGENATED NONVOLATILES
HALOGENATEO VOLATILES
NONHALOGENATED NONVOLATILES
                                                                                                                           NO
                                                                                                                                     YES

-------
TREATMENT  TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH
                                                                                                                            SCALE
                                                PILOT
                                                SCALE
 INCINERATION
 (continued)
ROY F. UESTON, INC.
(continued)
                                                                                       NONHALOGENATED VOLATILES
                                VERSAR  INC.
                                                                      SEDIMENTS        DIOXINS/FURANS
                                                                      SLUDGES          HALOGENATED VOLATILES
                                                                      SOILS            NONHALOGENATED VOLATILES
                                                                                       PCBs
                                                                                       PESTICIDES
                                                                                       VOLATILE METALS
                                                                                                                            NO
                                                                                                                                      YES
                                WESTERN RESEARCH INSTITUTE
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUID
                                                                                       NONHALOGENATED NONVOLATILES
                                                                                                                            INP        INP
                                WOODWARD CLYDE CONSULTANTS
                                                                      SEDIMENTS
                                                                      SLUDGES
                                                                      SOILS
                                                                      OTHER SOLIDS
                                                                                       NOT SPECIFIED
                                                                                                                            YES       YES
PYROLYSIS
                                PROCEDYNE CORPORATION
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUID
                                                                      SLUDGES
                                                      HALOGENATED VOLATILES
                                                      NONHALOGENATED VOLATILES
                                                                                                                            NO
                                                                                                                                      YES
THERMAL COMBUSTION
                                MCNAMEE ADVANCED TECHNOLOGY, INC.
                                OHM CORPORATION
                                     AQUEOUS MEDIA
                                     SLUDGES
                                                                      AQUEOUS MEDIA
                                                                 11-171
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
OXIDIZERS
REDUCERS
VOLATILE METALS

DIOXINS/FURANS
                                                                                            YES        YES
                                                                                           YES
                                                                                                                                      YES

-------
 TREATMENT  TECHNOLOGY
                                      COMPANY NAME
                       TABLE # 2 (CONTINUED)

                                      MEDIA TREATED
                                                                                          CONTAMINANT GROUPS
                                                      BENCH     PILOT
                                                      SCALE     SCALE
 THERMAL  COMBUSTION
 (continued)
OHM CORPORATION
(continued)
ORGANIC LIQUID
SLUDGES
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
NONHALOGENATED NONVOLATILES
PCBs
PESTICIDES
VOLATILE METALS
THERMAL DECOMPOSITION
                                APPLIED SURFACE TECHNOLOGY
                                                                      AQUEOUS  MEDIA
                                                                      ORGANIC  LIQUIDS
                                                                      SLUDGES
                                                                      SOILS
                                                       INORGANIC CORROSIVES
                                                       OXIDIZERS
                                                       HALOGENATED NONVOLATILES
                                                       HALOGENATED VOLATILES
                                                       NONVOLATILE METALS
                                                       ORGANIC CYANIDES
                                                       INORGANIC CYANIDES
                                                                                                                            YES       YES
THERMAL DESORPTION
                                REMEDIATION TECHNOLOGIES
                                                                     SEDIMENTS
                                                                     SLUDGES
                                                                     SOILS
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                      NONHALOGENATED VOLATILES
                                                                                                                            NO
                                                                                                                                      YES
THERMAL DESTRUCTION
                                PYROGENICS,  INC.
                                     SOILS            NONHALOGENATED NONVOLATILES
                                     OTHER SOLIDS     NONVOLATILE METALS
                                                      VOLATILE METALS
                                                                                                                            YES       YES
THERMAL FIXATION
                                COMBUSTION  ENGINEERING,  INC.
                                     NOT SPECIFIED
                                                      NOT SPECIFIED
                                                                                                                            INP       INP
THERMAL PROCESSING
                                AAA CSI
                                                                     SEDIMENTS
                                                                     SLUDGES
                                                                     SOILS
                                                                11-172
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      INORGANIC CORROSIVES
                                                                                                                            NO
                                                                                                                                      NO

-------
 TREATMENT  TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH
                                                                                                                            SCALE
                                                                                                      PILOT
                                                                                                      SCALE
THERMAL PROCESSING
(continued)
AAA CSI
(continued)
 NONHALOGENATED  NONVOLATILES
 NONHALOGENATED  VOLATILES
 NONVOLATILE METALS
 ORGANIC CORROSIVES
 OXIDIZERS
 PCBs
 PESTICIDES
 REDUCERS
 VOLATILE METALS
THERMAL TREATMENT-NOS
                                ROY F. WESTON, INC.
                                      NOT SPECIFIED
HALOGENATED  VOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE  METALS
VOLATILE METALS
                                                                                                                            INP       INP
VITRIFICATION
                                AEA TECHNOLOGY
                                CHEHENCO,  INC.
                                COMBUSTION ENGINEERING,  INC.


                                DIVERSIFIED ENGINEERING,  INC.

                                E  H & C  ENGINEERING ASSOCIATES
                                      AQUEOUS  MEDIA
                                      ORGANIC  LIQUID
                                      SEDIMENTS
                                      SLUDGES
                                      SOILS

                                      OTHER  SOLIDS
                                      SEDIMENTS
                                      SOILS
                                      SLUDGES

                                      SOILS
                                      SLUDGES

                                      NOT  SPECIFIED

                                      SLUDGES
                                      OTHER  SOLIDS
                                      SOILS
                                                                                       RADIOACTIVE MATERIALS
                                                                                                                            YES       YES
NOT SPECIFIED
                                                                                                                            INP       INP
NOT SPECIFIED
RADIOACTIVE MATERIALS

DIOXINS/FURANS
HALOGENATED NONVOLAITLES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
YES       YES


YES       INP

INP       INP
                                                                 11-173

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED
                                                                                         CONTAMINANT GROUPS
                                      BENCH     PILOT
                                      SCALE     SCALE
VITRIFICATION
(continued)
E M & C ENGINEERING ASSOCIATES
(continued)
                                ENSOTECH,  INC.
                               GENERAL PHYSICS CORPORATION

                               IT CORPORATION


                               MAECORP, INC.
                                     OTHER SOLIDS
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
                                     OTHER SOLIDS

                                     SOILS
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
 INORGANIC CYANIDES
 NONVOLATILE METALS
 ORGANIC CYANIDES
 OXIDIZERS
 PCBs
 PESTICIDES
 REDUCERS
 VOLATILE METALS

 HALOGENATED NONVOLATILES
 HALOGENATED VOLATILES
 INORGANIC CORROSIVES
 INORGANIC CYANIDES
 NONHALOGENATED NONVOLATILES
 NONHALOGENATED VOLATILES
 NONVOLATILE METALS
 OXIDIZERS
 REDUCERS

 RADIOACTIVE MATERIALS

 NONVOLATILE METALS
 RADIOACTIVE MATERIALS

 NOT SPECIFIED
                                                                                                                            YES       YES
YES       YES

YES       NO
                                                                                            NO
                                                                                                      YES
                               MCNAMEE ADVANCED TECHNOLOGY, INC.
                                     SLUDGES
                                     SOILS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
                                                                                                                           YES       YES
                                                                11-174

-------
 TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH     PILOT
                                                                                                                            SCALE     SCALE
 VITRIFICATION
 (continued)
MCNAMEE ADVANCED TECHNOLOGY. INC.
(continued)
                                                                                       OXIDIZERS
                                                                                       REDUCERS
                                                                                       VOLATILE METALS
                                PYROGENICS,  INC.
                                RMT. INC.
                                VERSAR INC.
                                      SOILS
                                      OTHER SOLIDS
                                      SEDIMENTS
                                      SLUDGES
                                      SOILS

                                      SEDIMENTS
                                      SLUDGES
                                      SOILS
NONHALOGENATED NONVOLATILES
NONVOLATILE METALS
VOLATILE METALS

NOT SPECIFIED
                                                                                       HALOGENATED NONVOLATILES
                                                                                       HALOGENATED VOLATILES
                                                                                       NONHALOGENATED NONVOLATILES
                                                                                       NONHALOGENATED VOLATILES
                                                                                       NONVOLATILE METALS
                                                                                       ORGANIC CORROSIVES
                                                                                       ORGANIC CYANIDES
                                                                                       OXIDIZERS
                                                                                       REDUCERS
                                                                                       VOLATILE METALS
                                                                                            YES       YES
                                                                                            YES       YES
                                                                                                                            YES       YES
WET AIR OXIDATION
                                AAA CSI
                                                                      AQUEOUS MEDIA
                                                                      ORGANIC LIQUID
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      INORGANIC CORROSIVES
                                                      NONHALOGENATED NONVOLATILES
                                                      NONHALOGENATED VOLATILES
                                                      NONVOLATILE METALS
                                                      ORGANIC CORROSIVES
                                                      OXIDIZERS
                                                      PCBs
                                                      PESTICIDES
                                                      REDUCERS
                                                      VOLATILE METALS
                                                                                                                            NO
                                                                                                      NO
                                                                 11-175

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                   MEDIA TREATED       CONTAMINANT GROUPS
BENCH
SCALE
PILOT
SCALE
WET AIR OXIDATION
(continued)
AAA CSI
                                      SEDIMENTS        HALOGENATED NONVOLATILES
                                      SLUDGES          HALOGENATED VOLATILES
                                      SOILS            INORGANIC CORROSIVES
                                                      NONHALOGENATED NONVOLATILES
                                                      NONHALOGENATED VOLATILES
                                                      NONVOLATILE METALS
                                                      ORGANIC CORROSIVES
                                                      OXIDIZERS
                                                      PCBs
                                                      PESTICIDES
                                                      REDUCERS
                                                      VOLATILE METALS
                                                                                           NO
                                                                                                     NO
                               E M & C ENGINEERING ASSOCIATES
                                                                     SLUDGES
                                                                     OTHER  SOLIDS
                                                                     SOILS
                                                      DIOXINS/FURANS
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLAITLES
                                                      INORGANIC CORROSIVES
                                                      INORGANIC CYANIDES
                                                      NONVOLATILE METALS
                                                      ORGANIC CYANIDES
                                                      OXIDIZERS
                                                      PCBs
                                                      PESTICIDES
                                                      REDUCERS
                                                      VOLATILE METALS
                                                                                                                           INP
                                                                                                                                     IMP
                               INTERNATIONAL PROCESS RESEARCH CORP
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                                                      HALOGENATED NONVOLATILES
                                                      HALOGENATED VOLATILES
                                                      INORGANIC CORROSIVES
                                                      INORGANIC CYANIDES
                                                      NONHALOGENATED VOLATILES
                                                      NONVOLATILE METALS
                                                      ORGANIC CORROSIVES
                                                      ORGANIC CYANIDES
                                                      OXIDIZERS
                                                      REDUCERS
                                                                                                                           YES
                                                                                                                                     YES
                                                                11-176

-------
TREATMENT TECHNOLOGY
                       TABLE # 2 (CONTINUED)

      COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH     PILOT
                                                                                                                            SCALE     SCALE
WET AIR OXIDATION
(continued)
IT CORPORATION
                                MCNAMEE ADVANCED TECHNOLOGY, INC.
                                MCNAHEE ADVANCED TECHNOLOGY.  INC.
                                      AQUEOUS MEDIA
                                      ORGANIC LIQUID
                                      AQUEOUS MEDIA
                                      SLUDGES
                                     SLUDGES
                                     SOILS
 HALOGENATED NONVOLATILES
 NONHALOGENATED NONVOLATILES
 NONHALOGENATED VOLATILES
 PCBs
 PESTICIDES

 HALOGENATED NONVOLATILES
 HALOGENATED VOLATILES
 INORGANIC CORROSIVES
 INORGANIC CYANIDES
 NONHALOGENATED NONVOLATILES
 NONHALOGENATED VOLATILES
 NONVOLATILE METALS
 ORGANIC CORROSIVES
 ORGANIC CYANIDES
 OXIDIZERS
 REDUCERS
 VOLATILE METALS

 HALOGENATED NONVOLATILES
 HALOGENATED VOLATILES
 INORGANIC CORROSIVES
 INORGANIC CYANIDES
 NONHALOGENATED NONVOLATILES
 NONHALOGENATED VOLATILES
 NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
OXIDIZERS
REDUCERS
VOLATILE METALS
                                                                                            YES
                                                                                                      NO
                                                                                                                            YES
                                                                                                                                      YES
                                                                                                                            YES       YES
                               RMT.  INC.
                                     AQUEOUS MEDIA
                                     ORGANIC LIQUID
                                     SEDIMENTS
                                     SLUDGES
                                     SOILS
                                11-177
                                                                                       NOT SPECIFIED
                                                                                                                            YES
                                                                                                                                      YES

-------
TREATMENT TECHNOLOGY
                 TABLE * 2 (CONTINUED)

COMPANY NAME                    MEDIA TREATED       CONTAMINANT GROUPS
                                                                                                                            BENCH
                                                                                                                            SCALE
                                                PILOT
                                                SCALE
WET AIR OXIDATION
(continued)
                                VERSAR  INC.
                                                                     AQUEOUS MEDIA
                                                                     ORGANIC LIQUID
                               WESTERN RESEARCH INSTITUTE
                               ZIMPRO PASSAVANT
                               AQUEOUS MEDIA
                               ORGANIC LIQUID

                               AQUEOUS MEDIA
                               ORGANIC LIQUID
                               SEDIMENTS
                               SLUDGES
                               SOILS
DIOXINS/FURANS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
OXIDIZERS
REDUCERS
VOLATILE METALS

NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES

NOT SPECIFIED
                                                                                                                            YES
                                                                                                                                      YES
                                                                                                                           YES
                                                                                                                                      NO
                                                                                                                           YES       YES
                                                                 11-178

-------
                       TABLE # 3:   SUMMARY  LIST  OF  CONTAMINANT  GROUPS
ASBESTOS
DIOXINS/FURANS
HALOGENATED NONVOLATILES
HALOGENATED VOLATILES
INORGANIC CORROSIVES
INORGANIC CYANIDES
NONHALOGENATED NONVOLATILES
NONHALOGENATED VOLATILES
NONVOLATILE METALS
ORGANIC CORROSIVES
ORGANIC CYANIDES
OXIDIZERS
PCBs
PESTICIDES
RADIOACTIVE MATERIALS
REDUCERS
VOLATILE METALS
NOT SPECIFIED

-------
               TABLE # 4:  TREATAB1LITY STUDY VENDORS BY  CONTAMINANT  GROUPS TREATED
CONTAMINANT GROUP
COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
ASBESTOS
I IT RESEARCH INST
I IT RESEARCH INST
I IT RESEARCH INST
I IT RESEARCH INST
MARINE POLUTION CONTROL
MARINE POLUTION CONTROL
CHEMICAL TREATMENT
FILTRATION
SOIL WASHING
STABILIZATION/SOLIDIFICATION
FILTRATION
STABILIZATION/SOLIDIFICATION
DIOXINS/FURANS
BIOSCIENCE MANAGEMENT, INC.
BIOSCIENCE MANAGEMENT, INC.
BIOSCIENCE MANAGEMENT, INC.
BIOSCIENCE MANAGEMENT, INC.
BIOSCIENCE MANAGEMENT, INC.
BIOSCIENCE MANAGEMENT, INC.
BIOSCIENCE MANAGEMENT, INC.
DETOX, INC.
DETOX, INC.
DETOX, INC.
DETOX, INC.
DETOX, INC.
DETOX, INC.
DETOX, INC.
DETOX, INC.
DETOX, INC.
DETOX, INC.
DETOX, INC.
DETOX, INC.
DETOX, INC.
DETOX, INC.
DETOX, INC.
DETOX, INC.
DETOX, INC.
DETOX, INC.
DETOX, INC.
DETOX, INC.
DETOX, INC.
E  H & C  ENGINEERING  ASSOCIATES
E  M & C  ENGINEERING  ASSOCIATES
E  M & C  ENGINEERING  ASSOCIATES
E  M & C  ENGINEERING  ASSOCIATES
E  M & C  ENGINEERING  ASSOCIATES
E  M & C  ENGINEERING  ASSOCIATES
E  M & C  ENGINEERING  ASSOCIATES
E  M & C  ENGINEERING  ASSOCIATES
E  M & C  ENGINEERING  ASSOCIATES
E  M & C  ENGINEERING  ASSOCIATES
E  M & C  ENGINEERING  ASSOCIATES
E  M & C  ENGINEERING  ASSOCIATES
E  M & C  ENGINEERING  ASSOCIATES
E  M & C  ENGINEERING  ASSOCIATES
E  M & C  ENGINEERING  ASSOCIATES
AEROBIC BIOLOGICAL
81ODEGRADATION-COMPOST ING
BIODEGRADATION-SLURRY PHASE
BIODEGRADATION-SOLID PHASE
IN SITU BIOOEGRADATION
NEUTRALIZATION
STRIPPING
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
ANAEROBIC BIOLOGICAL
BIODEGRADATION-COMPOST ING
BIODEGRADATION-SLURRY PHASE
BIODEGRADATION-SOLID PHASE
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
IN SITU BIODEGRADATION
IN SITU SOIL  FLUSHING
IN SITU VACUUM &  STEAM EXTRACT
IN SITU VITRIFICATION
OZONATION
SOIL  WASHING
SOLVENT RECOVERY
STRIPPING
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
BIODEGRADATION-NOS
CATALYSIS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
CRYSTALLIZATION
 IN  SITU SOIL  FLUSHING
                                                 IV-   1

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
TREATMENT TECHNOLOGY
DIOXINS/FURANS
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   ENERGY&ENVIRONMENTAL RESEARCH CORP.
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                    I IT RESEARCH INST
INCINERATION
ION EXCHANGE
LIQUID-LIQUID EXTRACTION
LOU TEMP THERMAL STRIPPING
NEUTRALIZATION
OZONATION
REVERSE OSMOSIS
SOLVENT RECOVERY
STABILIZATION
STRIPPING
VITRIFICATION
WET AIR OXIDATION
INCINERATION
ACTIVATED CARBON
ADSORPTION
IN SITU BIOOEGRADATION
ACTIVATED SLUDGE
ADSORPTION
ADSORPTION
CHEMICAL OXIDATION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL PRECIPITATION
COAGULATI ON/ FLOCCULATI ON
COAGULATION/FLOCCULATI ON
LOW TEMP THERMAL STRIPPING
OZONATION
STABILIZATION/SOLIDIFICATION
STRIPPING
ACTIVATED CARBON
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
ADSORPTION
CATALYSIS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
CRYSTALLIZATION
FILTRATION
IN SITU RADIO  FREQUENCY HEATIN
IN SITU SOIL FLUSHING
IN SITU VACUUM & STEAM EXTRACT
ION EXCHANGE
ION EXCHANGE
LOU TEMP THERMAL STRIPPING
OZONATION
SOIL  UASHING
SOLVENT RECOVERY
STABILIZATION/SOLIDIFICATION
                                                 IV-  2

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
DIOXINS/FURANS
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   IT CORPORATION
                                   IT CORPORATION
                                   IT CORPORATION
                                   IT CORPORATION
                                   IT CORPORATION
                                   IT CORPORATION
                                   O'BRIEN AND GERE ENGINEERS,  INC.
                                   O'BRIEN AND GERE ENGINEERS,  INC.
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION       '
                                   OHM CORPORATION
                                    OHM CORPORATION
                                    OHM CORPORATION
                                    OHM CORPORATION
                                    OHM CORPORATION
                                    OHM CORPORATION
                                    OHM CORPORATION
                                    OHM CORPORATION
                                    PETROLEUM TESTING SERVICE, INC.
                                    RADIAN CORPORATION
                                    RADIAN CORPORATION
                                    RMC ENV & ANALYTICAL LABORATORIES
                                    RMC ENV & ANALYTICAL LABORATORIES
                                    RMC ENV & ANALYTICAL LABORATORIES
                                    RMC ENV & ANALYTICAL LABORATORIES
                                    RMC ENV & ANALYTICAL LABORATORIES
                                    RMC ENV & ANALYTICAL LABORATORIES
                                    RMC ENV & ANALYTICAL LABORATORIES
                                    ROY F. UESTON, INC.
                                    ROY F. UESTON, INC.
                                    ROY F. UESTON, INC.
                                    ROY F. WESTON, INC.
                                    ROY F. UESTON, INC.
STRIPPING
UV/OZONATION
CATALYSIS
CHEMICAL EXTRACTION
CHEMICAL TREATMENT
LIQUID-LIQUID EXTRACTION
LOU TEMP THERMAL STRIPPING
SOIL UASHING
CATALYSIS
UV/PHOTOLYSIS
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
BIODEGRADATION-NOS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
CRYSTALLIZATION
DEUATERING
IN  SITU BIODEGRAOATION
IN  SITU BIODEGRADATION
IN  SITU SOIL  FLUSHING
IN  SITU VACUUM &  STEAM  EXTRACT
INCINERATION
ION EXCHANGE
LOU TEMP THERMAL  STRIPPING
NEUTRALIZATION
OIL-WATER SEPARATION
SOIL UASHING
SOLVENT RECOVERY
STABILIZATION/SOLIDIFICATION
STRIPPING
THERMAL COMBUSTION
IN  SITU VACUUM &  STEAM  EXTRACT
ACTIVATED SLUDGE
ANAEROBIC BIOLOGICAL
CHEMICAL  EXTRACTION
CHEMICAL  TREATMENT
 IN  SITU  VACUUM &  STEAM  EXTRACT
 IN  SITU  VITRIFICATION
 INCINERATION
SOIL UASHING
STABILIZATION/SOLIDIFICATION
ACTIVATED CARBON
ACTIVATED SLUDGE
AEROBIC  BIOLOGICAL
ANAEROBIC BIOLOGICAL
BIODEGRADATION•COMPOST ING
                                                 IV-  3

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
DIOXINS/FURANS
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY   . UESTON, INC.
                                   ROY   . UESTON, INC.
                                   ROY   . UESTON, INC.
                                   ROY   . UESTON, INC.
                                   ROY   . UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   S-CUBED
                                   THORNE ENVIRONMENTAL,  INC.
                                   THORNE ENVIRONMENTAL,  INC.
                                   THORNE ENVIRONMENTAL,  INC.
                                   THORNE ENVIRONMENTAL,  INC.
                                   THORNE ENVIRONMENTAL,  INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
BIOOEGRADATION-SLURRY PHASE
BIOOEGRADATION-SOLID PHASE
CENTRIFUGATION
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
COAGULATION/FLOCCULATI ON
FILTRATION
FILTRATION
FLOTATION THICKENING
GRAVITY THICKENING
IN SITU BIOOEGRADATION
IN SITU RADIO FREQUENCY HEAT IN
IN SITU SOIL FLUSHING
IN SITU VACUUM & STEAM EXTRACT
INCINERATION
ION EXCHANGE
LOU TEMP THERMAL STRIPPING
NEUTRALIZATION
OZONATION
SEDIMENTATION
SOIL UASHING
STABILIZATION/SOLIDIFICATION
STRIPPING
LIQUID-LIQUID EXTRACTION
BIOOEGRADATION-SLURRY PHASE
BIOOEGRADATION-SOLID PHASE
IN SITU BIOOEGRADATION
IN SITU SOIL FLUSHING
UV/DEEP TREATMENT
ACTIVATED SLUDGE
ADSORPTION
ANAEROBIC BIOLOGICAL
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
INCINERATION
REVERSE OSMOSIS
STABILIZATION/SOLIDIFICATION
UET AIR OXIDATION
ACTIVATED CARBON
ACTIVATED SLUDGE
BIODEGRADATION-NOS
REVERSE OSMOSIS
 HALOGENATED  NONVOLATILES
                                    AAA CSI
                                    AAA CSI
                                    AAA CSI
                                    AAA CSI
                                    AAA CSI
 ACTIVATED  CARBON
 ADSORPTION
 CATALYSIS
 CENTRIFUGATION
 CHEMICAL EXTRACTION
                                                 IV-   4

-------
CONTAMINANT GROUP
                                TABLE # 4 (CONTINUED)

                                   COMPANY NAME
TREATMENT TECHNOLOGY
HALOGENATEO NONVOLATILES
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   APPLIED  SURFACE  TECHNOLOGY
                                   APPLIED  SURFACE  TECHNOLOGY
                                   APPLIED  SURFACE  TECHNOLOGY
                                   APPLIED  SURFACE  TECHNOLOGY
                                   APPLIED  SURFACE  TECHNOLOGY
                                   APPLIED  SURFACE  TECHNOLOGY
                                   APPLIED  SURFACE  TECHNOLOGY
                                   APPLIED  SURFACE  TECHNOLOGY
                                   APPLIED  SURFACE  TECHNOLOGY
                                   APPLIED  SURFACE  TECHNOLOGY
                                   APPLIED  SURFACE  TECHNOLOGY
                                   APPLIED  SURFACE  TECHNOLOGY
                                   APPLIED  SURFACE  TECHNOLOGY
                                   APPLIED  SURFACE  TECHNOLOGY
                                   APPLIED  SURFACE  TECHNOLOGY
                                   APPLIED  SURFACE  TECHNOLOGY
                                   APPLIED  SURFACE  TECHNOLOGY
                                   APPLIED  SURFACE  TECHNOLOGY
                                   APPLIED  SURFACE  TECHNOLOGY
                                   APPLIED  SURFACE  TECHNOLOGY
                                   APPLIED  SURFACE  TECHNOLOGY
                                   APPLIED  SURFACE  TECHNOLOGY
                                   APPLIED  SURFACE  TECHNOLOGY
                                    BIOSCIENCE MANAGEMENT, INC.
                                    BIOSCIENCE MANAGEMENT, INC.
                                    BIOSCIENCE MANAGEMENT, INC.
                                    BIOSCIENCE MANAGEMENT, INC.
                                    BIOSCIENCE MANAGEMENT, INC.
                                    BIOSCIENCE MANAGEMENT, INC.
                                    BIOSCIENCE MANAGEMENT, INC.
                                    CAA BIOREMEDIATION SYSTEMS
                                    CAA BIOREMEDIATION SYSTEMS
                                    CAA BIOREMEDIATION SYSTEMS
                                    CAA BIOREMEDIATION SYSTEMS
                                    CAA BIOREMEDIATION SYSTEMS
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CRYSTALLIZATION
FILTRATION
IN SITU VACUUM & STEAM EXTRACT
INCINERATION
INCINERATION
LIQUID-LIQUID EXTRACTION
LOU TEMP THERMAL STRIPPING
NEUTRALIZATION
SOLVENT RECOVERY
STABILIZATION/SOLIDIFICATION
STRIPPING
THERMAL PROCESSING
WET AIR OXIDATION
WET AIR OXIDATION
ACTIVATED CARBON
ADSORPTION
CATALYSIS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL TREATMENT
CHLORINATION
CRYSTALLIZATION
ELECTROOIALYSIS
ELECTROLYSIS
FLUID-BED STRIPPING
IN  SITU SOIL  FLUSHING
ION EXCHANGE
LOW TEMP THERMAL  STRIPPING
OZONATION
REVERSE OSMOSIS
SOIL WASHING
SOLIDIFICATION
STABILIZATION
STRIPPING
THERMAL DECOMPOSITION
ULTRAFILTRATION
AEROBIC BIOLOGICAL
BICOEGRADATION-COMPOSTING
 BIODEGRADATION-SLURRY PHASE
 BI ODEGRADATION-SOL ID PHASE
 IN SITU BIODEGRADATION
 NEUTRALIZATION
 STRIPPING
 ACTIVATED  CARBON
 ACTIVATED  SLUDGE
 ADSORPTION
 AEROBIC BIOLOGICAL
 ANAEROBIC BIOLOGICAL
                                                  IV-  5

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
HALOGENATED NONVOLATILES
                                   CAA BIOREMEOIATION SYSTEMS
                                   CAA BIOREMEOIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   COMBUSTION ENGINEERING, INC.
                                   COMBUSTION ENGINEERING, INC.
                                   D D ENVIRONMENTAL
                                   D D ENVIRONMENTAL
                                   D D ENVIRONMENTAL
                                   D D ENVIRONMENTAL
                                   D D ENVIRONMENTAL
                                   D D ENVIRONMENTAL
                                   D D ENVIRONMENTAL
                                   D D ENVIRONMENTAL
                                   D D ENVIRONMENTAL
                                   D D ENVIRONMENTAL
                                   D D ENVIRONMENTAL
                                   D D ENVIRONMENTAL
                                   D D ENVIRONMENTAL
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DIVERSIFIED ENGINEERING,  INC.
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
BIODEGRADATION-SOLID PHASE
CHEMICAL EXTRACTION
IN SITU BIODEGRADATION
IN SITU SOIL FLUSHING
IN SITU VACUUM & STEAM EXTRACT
LIQUID-LIQUID EXTRACTION
LOU TEMP THERMAL STRIPPING
NEUTRALIZATION
NEUTRALIZATION
SOIL WASHING
STRIPPING
IN SITU BIODEGRADATION
ION EXCHANGE
ACTIVATED SLUDGE
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
BIODEGRADATION-SLURRY PHASE
BIODEGRADATION-SOLID PHASE
CHEMICAL EXTRACTION
CHEMICAL TREATMENT
IN SITU BIODEGRADATION
IN SITU SOIL FLUSHING
IN SITU VACUUM & STEAM EXTRACT
ION EXCHANGE
SOIL WASHING
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
ANAEROBIC BIOLOGICAL
BIODEGRADATION-COMPOST ING
BIODEGRADATION-SLURRY PHASE
BIODEGRADATION-SOLID PHASE
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
IN SITU BIODEGRADATION
IN SITU SOIL FLUSHING
IN SITU VACUUM & STEAM EXTRACT
IN SITU VITRIFICATION
OZONATION
SOIL WASHING
SOLVENT RECOVERY
STRIPPING
ACTIVATED SLUDGE
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
                                                 IV-

-------
CONTAMINANT GROUP
                                TABLE * 4 (CONTINUED)

                                   COMPANY NAME
TREATMENT TECHNOLOGY
HALOGENATED NONVOLATILES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   ENERGY&ENVIRONMENTAL RESEARCH CORP.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                    ENSOTECH,  INC.
                                    ENSOTECH,  INC.
                                    ENSOTECH,  INC.
                                    ENSOTECH,  INC.
                                    ENSOTECH,  INC.
                                    ENVIRONMENTAL RESOURCE ASSOCIATES
                                    ENVIRONMENTAL RESOURCE ASSOCIATES
                                    ENVIRONMENTAL RESOURCE ASSOCIATES
                                    ENVIRONMENTAL RESOURCE ASSOCIATES
                                    ENVIRONMENTAL RESOURCE ASSOCIATES
                                    ENVIRONMENTAL RESOURCE ASSOCIATES
                                    ENVIRONMENTAL RESOURCE ASSOCIATES
                                    ENVIRONMENTAL RESOURCE ASSOCIATES
BIOOEGRADATION-NOS
CATALYSIS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
CRYSTALLIZATION
IN SITU SOIL FLUSHING
INCINERATION
ION EXCHANGE
LIQUID-LIQUID EXTRACTION
LOU TEMP THERMAL STRIPPING
NEUTRALIZATION
OZONATION
REVERSE OSMOSIS
SOLVENT RECOVERY
STABILIZATION
STRIPPING
WET AIR OXIDATION
INCINERATION
ACTIVATED SLUDGE
ADSORPTION
BIOOEGRADATION-NOS
BIOOEGRADATION-NOS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
FILTRATION
IN SITU BIOOEGRADATION
IN SITU SOIL  FLUSHING
IN SITU VACUUM &  STEAM  EXTRACT
INCINERATION
ION EXCHANGE
LOU TEMP THERMAL  STRIPPING
NEUTRALIZATION
SOIL  WASHING
STABILIZATION/SOLIDIFICATION
STABILIZATION/SOLIDIFICATION
STRIPPING
VITRIFICATION
ACTIVATED  CARBON
ACTIVATED  SLUDGE
AEROBIC  BIOLOGICAL
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
NEUTRALIZATION
STRIPPING
                                                 IV-  7

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
HALOGENATED NONVOLATILES
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                    I IT RESEARCH INST
                                    I IT RESEARCH INST
                                    I IT RESEARCH INST
                                    I IT RESEARCH INST
                                    I IT RESEARCH INST
                                    I IT RESEARCH INST
                                    IIT RESEARCH INST
                                    I IT RESEARCH INST
                                    I IT RESEARCH INST
                                    I IT RESEARCH INST
                                    I IT RESEARCH INST
                                             ACTIVATED CARBON
                                             ACTIVATED SLUDGE
                                             AEROBIC BIOLOGICAL
                                             BIODEGRADATION-COMPOST ING
                                             BIOOEGRADATION-SLURRY PHASE
                                             BIODEGRADATION-SOLID PHASE
                                             CHEMICAL OXIDATION
                                             CHEMICAL PRECIPITATION
                                             CHEMICAL REDUCTION
                                             CHLORINATION
                                             IN SITU BIODEGRADATION
                                             IN SITU SOIL FLUSHING
                                             IN SITU VACUUM & STEAM EXTRACT
                                             INCINERATION
                                             ION EXCHANGE
                                             NEUTRALIZATION
                                             SOIL WASHING
                                             STRIPPING
                                             ACTIVATED CARBON
                                             ACTIVATED SLUDGE
                                             ADSORPTION
                                             AEROBIC BIOLOGICAL
                                             ANAEROBIC BIOLOGICAL
                                             CHEMICAL OXIDATION
                                             CHEMICAL REDUCTION
                                             LIQUID-LIQUID EXTRACTION
                                             OZONATION
                                             STRIPPING
                                             ACTIVATED SLUDGE
                                             ADSORPTION
                                             ADSORPTION
                                             CHEMICAL OXIDATION
                                             CHEMICAL OXIDATION
                                             CHEMICAL PRECIPITATION
                                             CHEMICAL PRECIPITATION
                                             COAGULATION/FLOCCULATION
                                             COAGULATION/FLOCCULAT10N
                                             LOW  TEMP THERMAL  STRIPPING
                                             NEUTRALIZATION
                                             OZONATION
                                             STABILIZATION/SOLIDIFICATION
                                             STRIPPING
                                             ACTIVATED CARBON
                                             ACTIVATED CARBON
                                             ACTIVATED SLUDGE
                                             ADSORPTION
                                             ADSORPTION
                                             CATALYSIS
                                             CHEMICAL EXTRACTION
                                             CHEMICAL OXIDATION
                                             CHEMICAL PRECIPITATION
                                             CHEMICAL REDUCTION
                                             CHEMICAL TREATMENT
                                                 IV-  8

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
HALOGENATEO NONVOLATILES
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    IT CORPORATION
                                    IT CORPORATION
                                    IT CORPORATION
                                    IT CORPORATION
                                    IT CORPORATION
                                    IT CORPORATION
                                    IT CORPORATION
                                    IT CORPORATION
                                    JACOBS ENGINEERING GROUP,  INC.
                                    JACOBS ENGINEERING GROUP,  INC.
                                    JACOBS ENGINEERING GROUP,  INC.
                                    JACOBS ENGINEERING GROUP,  INC.
                                    KIBER ASSOCIATES,  INC.
                                    KIBER ASSOCIATES,  INC.
                                    KIBER ASSOCIATES,  INC.
CHLORINATION
CRYSTALLIZATION
FILTRATION
IN SITU RADIO FREQUENCY HEATIN
IN SITU SOIL FLUSHING
IN SITU VACUUM & STEAM EXTRACT
ION EXCHANGE
ION EXCHANGE
LOW TEMP THERMAL STRIPPING
OZONATION
SOIL WASHING
SOLVENT RECOVERY
STABILIZATION/SOLIDIFICATION
STRIPPING
UV/OZONATION
ACTIVATED CARBON
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
BIOOEGRADATION-NOS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
CRYSTALLIZATION
IN SITU BIOOEGRADATION
INCINERATION
ION EXCHANGE
LIQUID-LIQUID EXTRACTION
NEUTRALIZATION
OZONATION
SOIL  WASHING
SOLVENT RECOVERY
STABILIZATION/SOLIDIFICATION
STRIPPING
WET AIR OXIDATION
ACTIVATED CARBON
CATALYSIS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
LOW TEMP THERMAL  STRIPPING
REVERSE OSMOSIS
STABILIZATION/SOLIDIFICATION
WET AIR OXIDATION
ACTIVATED SLUDGE
AEROBIC BIOLOGICAL
CHEMICAL OXIDATION
LIQUID-LIQUID  EXTRACTION
ACTIVATED CARBON
CHEMICAL  PRECIPITATION
STABILIZATION/SOLIDIFICATION
                                                 IV-  9

-------
CONTAMINANT GROUP
                                TABLE # 4 (CONTINUED)

                                   COMPANY NAME
                            TREATMENT TECHNOLOGY
HALOGENATED NONVOLATILES
                                   KIBER ASSOCIATES,
                                   KIBER ASSOCIATES,
                                   MCNAMEE ADVANCED
                                   MCNAMEE ADVANCED
                                   MCNAMEE ADVANCED
                                   MCNAMEE ADVANCED
                                   MCNAMEE ADVANCED
                                   MCNAMEE ADVANCED
                                   MCNAMEE ADVANCED
                                   MCNAMEE ADVANCED
                                   MCNAMEE ADVANCED
                                   MCNAMEE ADVANCED
                                   MCNAMEE ADVANCED
                                   MCNAMEE ADVANCED
                                   MCNAMEE ADVANCED
                                   MCNAMEE ADVANCED
                                   MCNAMEE ADVANCED
                                   MCNAMEE ADVANCED
                                   MCNAMEE ADVANCED
                                   MCNAMEE ADVANCED
                                   MCNAMEE ADVANCED
                                   MCNAMEE ADVANCED
                                   MCNAMEE ADVANCED
                                   MCNAMEE ADVANCED
                                   MCNAMEE ADVANCED
                                   MCNAMEE ADVANCED
                                   MCNAMEE ADVANCED
                                   MCNAMEE ADVANCED
                                   MCNAMEE ADVANCED
                                   MCNAMEE ADVANCED
                                   MCNAMEE ADVANCED
                                   MCNAMEE ADVANCED
                                   MCNAMEE ADVANCED
                                   MCNAMEE ADVANCED
                                   MCNAMEE ADVANCED
                                   MCNAMEE ADVANCED
                                   MIDWEST RESEARCH
                                   MIDWEST RESEARCH
                                   MIDWEST RESEARCH
                                   MIDWEST RESEARCH
                                   O'BRIEN AND  GERE
                                   O'BRIEN AND  GERE
                                   O'BRIEN AND  GERE
                                   O'BRIEN AND  GERE
                                   O'BRIEN AND  GERE
                                   O'BRIEN AND  GERE
                                   O'BRIEN AND  GERE
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
  INC.
,  INC.
TECHNOLOGY,  INC.
TECHNOLOGY,  INC.
TECHNOLOGY,  INC.
TECHNOLOGY,  INC.
TECHNOLOGY,  INC.
TECHNOLOGY,  INC.
TECHNOLOGY,  INC.
TECHNOLOGY,  INC.
TECHNOLOGY,  INC.
TECHNOLOGY,  INC.
TECHNOLOGY,  INC.
TECHNOLOGY,  INC.
TECHNOLOGY,  INC.
TECHNOLOGY,  INC.
TECHNOLOGY,  INC.
TECHNOLOGY,  INC.
TECHNOLOGY,  INC.
TECHNOLOGY,  INC.
TECHNOLOGY,  INC.
 TECHNOLOGY,  INC.
 TECHNOLOGY,  INC.
 TECHNOLOGY,  INC.
 TECHNOLOGY,  INC.
 TECHNOLOGY,  INC.
 TECHNOLOGY,  INC.
 TECHNOLOGY,  INC.
 TECHNOLOGY,  INC.
 TECHNOLOGY,  INC.
 TECHNOLOGY,  INC.
 TECHNOLOGY,  INC.
 TECHNOLOGY,  INC.
 TECHNOLOGY,  INC.
 TECHNOLOGY,  INC.
 TECHNOLOGY,  INC.
 INSTITUTE
 INSTITUTE
 INSTITUTE
 INSTITUTE
 ENGINEERS,  INC.
 ENGINEERS,  INC.
 ENGINEERS,  INC.
 ENGINEERS,  INC.
 ENGINEERS,  INC.
 ENGINEERS,  INC.
 ENGINEERS,  INC.
STABILIZATION/SOLIDIFICATION
STABILIZATION/SOLIDIFICATION
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
BICOEGRADATION-COMPOST ING
BIODEGRADATION-SLURRY PHASE
BIODEGRADATION-SOLID PHASE
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
COAGULATION/FLOCCULATI ON
CRYSTALLIZATION
DEWATERING
FILTRATION
INCINERATION
ION EXCHANGE
LIQUID-LIQUID EXTRACTION
NEUTRALIZATION
OZONATION
PACT
REVERSE  OSMOSIS
SOLVENT  RECOVERY
STABILIZATION
STABILIZATION/SOLIDIFICATION
STRIPPING
THERMAL  COMBUSTION
UV/OXIDATION
VITRIFICATION
WET AIR  OXIDATION
WET AIR  OXIDATION
ACTIVATED  CARBON
BICOEGRADATION-NOS
INCINERATION
MOLECULAR  BEAM MASS SPEC
ACTIVATED  CARBON
ACTIVATED  SLUDGE
ADSORPTION
AEROBIC  BIOLOGICAL
 IN SITU  SOIL  FLUSHING
STRIPPING
UV/PHOTOLYSIS
ACTIVATED  CARBON
ACTIVATED  SLUDGE
ADSORPTION
AEROBIC  BIOLOGICAL
ANAEROBIC  BIOLOGICAL
BIODEGRADATION-NOS
                                                 IV-  10

-------
CONTAMINANT GROUP
TABLE # 4 (CONTINUED)

   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
HALOGENATED NONVOLATILES
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   PETROLEUM TESTING SERVICE,  INC.
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   REMEDIATION  TECHNOLOGIES
                                   REMEDIATION  TECHNOLOGIES
                                   REMEDIATION  TECHNOLOGIES
                                   REMEDIATION  TECHNOLOGIES
                                   REMEDIATION  TECHNOLOGIES
                                   REMEDIATION  TECHNOLOGIES
                                   REMEDIATION  TECHNOLOGIES
                                   REMEDIATION  TECHNOLOGIES
                                   REMEDIATION  TECHNOLOGIES
                                   REMEDIATION  TECHNOLOGIES
                                   REMEDIATION  TECHNOLOGIES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                                CHEMICAL EXTRACTION
                                                CHEMICAL OXIDATION
                                                CHEMICAL PRECIPITATION
                                                CHEMICAL REDUCTION
                                                CHEMICAL TREATMENT
                                                CHLORINATION
                                                CRYSTALLIZATION
                                                DEUATERING
                                                IN SITU BIOOEGRADATION
                                                IN SITU BIOOEGRADATION
                                                IN SITU SOIL FLUSHING
                                                IN SITU VACUUM & STEAM EXTRACT
                                                INCINERATION
                                                ION EXCHANGE
                                                LOW TEMP THERMAL STRIPPING
                                                NEUTRALIZATION
                                                OIL-WATER SEPARATION
                                                SOIL WASHING
                                                SOLVENT RECOVERY
                                                STABILIZATION/SOLIDIFICATION
                                                STRIPPING
                                                THERMAL COMBUSTION
                                                IN SITU VACUUM & STEAM EXTRACT
                                                ACTIVATED CARBON
                                                ACTIVATED SLUDGE
                                                ANAEROBIC BIOLOGICAL
                                                CHEMICAL EXTRACTION
                                                CHEMICAL OXIDATION
                                                CHEMICAL PRECIPITATION
                                                CHLORINATION
                                                ELECTRODIALYSIS
                                                ION EXCHANGE
                                                OZONATION
                                                REVERSE OSMOSIS
                                                STABILIZATION/SOLIDIFICATION
                                                STRIPPING
                                                ACTIVATED CARBON
                                                ANAEROBIC BIOLOGICAL
                                                BIOOEGRADATION-SLURRY PHASE
                                                BIODEGRADATION-SOLID PHASE
                                                CHEMICAL EXTRACTION
                                                IN SITU BIOOEGRADATION
                                                IN SITU SOIL  FLUSHING
                                                IN SITU VACUUM & STEAM EXTRACT
                                                SOIL WASHING
                                                STABILIZATION/SOLIDIFICATION
                                                STRIPPING
                                                ACTIVATED CARBON
                                                ADSORPTION
                                                AEROBIC BIOLOGICAL
                                                ANAEROBIC BIOLOGICAL
                                                CHEMICAL OXIDATION
                                                CHEMICAL PRECIPITATION
                                                 IV- 11

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
HALOGENATEO NONVOLATILES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RMC ENV & ANALYTICAL LABORATORIES
                                   RMC ENV & ANALYTICAL LABORATORIES
                                   RMC ENV & ANALYTICAL LABORATORIES
                                   RMC ENV & ANALYTICAL LABORATORIES
                                   RMC ENV & ANALYTICAL LABORATORIES
                                   RMC ENV & ANALYTICAL LABORATORIES
                                   RMC ENV & ANALYTICAL LABORATORIES
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                             CHEMICAL REDUCTION
                                             CRYSTALLIZATION
                                             OZONATION
                                             REVERSE OSMOSIS
                                             STRIPPING
                                             CHEMICAL EXTRACTION
                                             CHEMICAL TREATMENT
                                             IN SITU VACUUM & STEAM EXTRACT
                                             IN SITU VITRIFICATION
                                             INCINERATION
                                             SOIL WASHING
                                             STABILIZATION/SOLIDIFICATION
                                             ACTIVATED CARBON
                                             ACTIVATED SLUDGE
                                             AEROBIC BIOLOGICAL
                                             ANAEROBIC BIOLOGICAL
                                             BIODEGRADATION-COMPOSTING
                                             BIODEGRADATION-SLURRY PHASE
                                             BIODEGRADATION-SOLID PHASE
                                             CENTRIFUGATION
                                             CHEMICAL EXTRACTION
                                             CHEMICAL OXIDATION
                                             CHEMICAL PRECIPITATION
                                             CHEMICAL REDUCTION
                                             CHEMICAL TREATMENT
                                             CHLORINATION
                                             COAGULATION/FLOCCULATION
                                             FILTRATION
                                             FILTRATION
                                             FLOTATION THICKENING
                                             GRAVITY THICKENING
                                             IN SITU B100EGRADATION
                                             IN SITU RADIO FREQUENCY HEAT IN
                                             IN SITU SOIL FLUSHING
                                             IN SITU VACUUM & STEAM EXTRACT
                                             INCINERATION
                                             ION EXCHANGE
                                             LOW TEMP THERMAL STRIPPING
                                             NEUTRALIZATION
                                             OZONATION
                                             SEDIMENTATION
                                             SOIL WASHING
                                             STABILIZATION/SOLIDIFICATION
                                             STRIPPING
                                             ACTIVATED SLUDGE
                                             ADSORPTION
                                             AEROBIC BIOLOGICAL
                                             BIODEGRADATION-SLURRY PHASE
                                             BIODEGRADATION-SOLID PHASE
                                             IN SITU BIODEGRADATION
                                             IN SITU SOIL FLUSHING
                                             IN SITU VACUUM & STEAM EXTRACT
                                             ION EXCHANGE
                                                 IV-  12

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
HALOGENATED NONVOLATILES
                                   SYBRON CHEMICALS, INC.
                                   THORNE ENVIRONMENTAL, INC.
                                   THORNE ENVIRONMENTAL, INC.
                                   THORNE ENVIRONMENTAL, INC.
                                   THORNE ENVIRONMENTAL, INC.
                                   TREATEK, INC.
                                   TREATEK, INC.
                                   TREATEK, INC.
                                   TREATEK, INC.
                                   TREATEK, INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   WESTERN RESEARCH  INSTITUTE
                                   WESTERN RESEARCH  INSTITUTE
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
SOIL WASHING
BIOOEGRAOATION-SLURRY PHASE
BIOOEGRAOATION-SOLIO PHASE
IN SITU SOIL FLUSHING
UV/DEEP TREATMENT
ADSORPTION
AEROBIC BIOLOGICAL
CHEMICAL PRECIPITATION
SOIL WASHING
STRIPPING
ACTIVATED SLUDGE
ADSORPTION
ANAEROBIC BIOLOGICAL
CHEMICAL EXTRACTION
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
ION EXCHANGE
LIQUID-LIQUID EXTRACTION
NEUTRALIZATION
PACT
REVERSE OSMOSIS
STABILIZATION/SOLIDIFICATION
STRIPPING
VITRIFICATION
WET AIR OXIDATION
IN SITU BIOOEGRADATION
IN SITU SOIL FLUSHING
ACTIVATED SLUDGE
BIODEGRADATION-NOS
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
REVERSE OSMOSIS
STABILIZATION/SOLIDIFICATION
 HALOGENATED  VOLATILES
                                   AAA  CSI
                                   AAA  CSI
                                   AAA  CSI
                                   AAA  CSI
                                   AAA  CSI
                                   AAA  CSI
                                   AAA  CSI
                                   AAA  CSI
                                   AAA  CSI
                                   AAA  CSI
                                   AAA  CSI
                                   AAA  CSI
                                   AAA  CSI
                                   AAA  CSI
                                   AAA  CSI
                                   AAA  CSI
                                   AAA  CSI
                                   AAA  CSI
ACTIVATED CARBON
ADSORPTION
CATALYSIS
CENTRIFUGATION
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CRYSTALLIZATION
FILTRATION
IN  SITU VACUUM &  STEAM  EXTRACT
INCINERATION
INCINERATION
LIQUID-LIQUID EXTRACTION
LOW TEMP THERMAL  STRIPPING
NEUTRALIZATION
SOLVENT RECOVERY
                                                 IV-  13

-------
CONTAMINANT GROUP
                                TABLE # 4 (CONTINUED)

                                   COMPANY NAME
TREATMENT TECHNOLOGY
HALOGENATED VOLATILES
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   8IOSCIENCE  MANAGEMENT,  INC.
                                   BIOSCIENCE  MANAGEMENT,  INC.
                                   BIOSCIENCE  MANAGEMENT,  INC.
                                   BIOSCIENCE  MANAGEMENT,  INC.
                                   BIOSCIENCE  MANAGEMENT,  INC.
                                   BIOSCIENCE  MANAGEMENT,  INC.
                                   BIOSCIENCE  MANAGEMENT,  INC.
                                   BIOTROL,  INC.
                                   BIOTROL,  INC.
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                    CAA BIOREMEDIATION SYSTEMS
                                    CAA BIOREMEDIATION SYSTEMS
                                    CAA BIOREMEDIATION SYSTEMS
                                    CAA BIOREMEDIATION SYSTEMS
STABILIZATION/SOLIDIFICATION
STRIPPING
THERMAL PROCESSING
WET AIR OXIDATION
WET AIR OXIDATION
ACTIVATED CARBON
ADSORPTION
CATALYSIS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL TREATMENT
CHLORINATION
CRYSTALLIZATION
ELECTRCOIALYSIS
ELECTROLYSIS
FLUID-BED STRIPPING
IN SITU SOIL  FLUSHING
ION EXCHANGE
LOW TEMP THERMAL  STRIPPING
OZONATION
REVERSE OSMOSIS
SOIL WASHING
SOLIDIFICATION
STABILIZATION
STRIPPING
THERMAL DECOMPOSITION
ULTRAFILTRATION
AEROBIC BIOLOGICAL
BICOEGRADATION-COMPOST ING
BIODEGRADATION-SLURRY  PHASE
BIODEGRADATION-SOLID  PHASE
IN SITU BIOOEGRADATION
NEUTRALIZATION
STRIPPING
BIOOEGRADATION-SLURRY  PHASE
SOIL WASHING
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
BIODEGRADATION-SOLID  PHASE
CHEMICAL EXTRACTION
IN SITU BIODEGRADATI ON
IN SITU SOIL  FLUSHING
IN SITU VACUUM  &  STEAM  EXTRACT
LIQUID-LIQUID EXTRACTION
LOW  TEMP THERMAL  STRIPPING
NEUTRALIZATION
NEUTRALIZATION
SOIL WASHING
STRIPPING
                                                 IV- 14

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
HALOGENATEO VOLATILES
                                   CAMBRIDGE SCIENTIFIC, INC.
                                   COMBUSTION ENGINEERING,  INC.
                                   COMBUSTION ENGINEERING,  INC.
                                   COMBUSTION ENGINEERING,  INC.
                                   COMBUSTION ENGINEERING,  INC.
                                   COMBUSTION ENGINEERING,  INC.
                                   COMBUSTION ENGINEERING,  INC.
                                   D D ENVIRONMENTAL
                                   D D ENVIRONMENTAL
                                   D D ENVIRONMENTAL
                                   D D ENVIRONMENTAL
                                   D D ENVIRONMENTAL -
                                   D D ENVIRONMENTAL
                                   D D ENVIRONMENTAL
                                   D D ENVIRONMENTAL
                                   D D ENVIRONMENTAL
                                   D D ENVIRONMENTAL
                                   D D ENVIRONMENTAL
                                   D D ENVIRONMENTAL
                                   D D ENVIRONMENTAL
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   E M & C ENGINEERING  ASSOCIATES
                                   E M & C ENGINEERING  ASSOCIATES
                                   E M & C ENGINEERING  ASSOCIATES
                                   E M & C ENGINEERING  ASSOCIATES
                                   E M & C ENGINEERING  ASSOCIATES
                                   E M & C ENGINEERING  ASSOCIATES
                                   E M & C ENGINEERING  ASSOCIATES
                                   E M & C ENGINEERING  ASSOCIATES
                                   E M & C ENGINEERING  ASSOCIATES
                                   E M & C ENGINEERING  ASSOCIATES
                                   E M & C ENGINEERING  ASSOCIATES
                                   E M & C ENGINEERING  ASSOCIATES
ANAEROBIC BIOLOGICAL
BIODEGRADAT10N-NOS
IN SITU BICOEGRADATION
ION EXCHANGE
LOU TEMP THERMAL EXTRACTION
STRIPPING
UV/OXIDATION
ACTIVATED SLUDGE
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
81ODEGRADAT ION-SLURRY PHASE
BI DEGRADATION-SOL ID PHASE
CHEMICAL EXTRACTION
CHEMICAL TREATMENT
IN SITU BICOEGRADATION
IN SITU SOIL FLUSHING
IN SITU VACUUM & STEAM EXTRACT
ION EXCHANGE
SOIL WASHING
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
ANAEROBIC BIOLOGICAL
BIODEGRADAT ION-COMPOST ING
BIODEGRADATION-SLURRY PHASE
8IODEGRADATION-SOLID PHASE
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATEON
IN SITU BIODEGRADATION
IN SITU SOIL FLUSHING
IN SITU VACUUM & STEAM EXTRACT
IN SITU VITRIFICATION
OZONATION
SOIL WASHING
SOLVENT RECOVERY
STRIPPING
ACTIVATED CARBON
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
BIODEGRADATION-NOS
CATALYSIS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
                                                 IV-  15

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
HALOGENATED VOLATILES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   ENERGY&ENVIRONMENTAL RESEARCH CORP.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENVIRONMENTAL REMEDIATION,  INC.
                                   ENVIRONMENTAL REMEDIATION,  INC.
                                   ENVIRONMENTAL REMEDIATION,  INC.
                                   ENVIRONMENTAL REMEDIATION,  INC.
                                   ENVIRONMENTAL REMEDIATION,  INC.
                                   ENVIRONMENTAL REMEDIATION,  INC.
                                   ENVIRONMENTAL REMEDIATION,  INC.
                                   ENVIRONMENTAL REMEDIATION,  INC.
                                   ENVIRONMENTAL RESOURCE ASSOCIATES
                                   ENVIRONMENTAL RESOURCE ASSOCIATES
                                   ENVIRONMENTAL RESOURCE ASSOCIATES
                                   ENVIRONMENTAL RESOURCE ASSOCIATES
                                   ENVIRONMENTAL RESOURCE ASSOCIATES
                                   ENVIRONMENTAL RESOURCE ASSOCIATES
                                    ENVIRONMENTAL RESOURCE ASSOCIATES
                                    ENVIRONMENTAL RESOURCE ASSOCIATES
CRYSTALLIZATION
IN SITU SOIL FLUSHING
INCINERATION
ION EXCHANGE
LIQUID-LIQUID EXTRACTION
LOW TEMP THERMAL STRIPPING
NEUTRALIZATION
OZONATION
REVERSE OSMOSIS
SOLVENT RECOVERY
STABILIZATION
STRIPPING
VITRIFICATION
INCINERATION
ACTIVATED SLUDGE
ADSORPTION
BIOOEGRADATION-NOS
BIODEGRADATION-NOS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
FILTRATION
IN SITU BIOOEGRADATION
IN SITU SOIL FLUSHING
IN SITU VACUUM & STEAM  EXTRACT
INCINERATION
ION EXCHANGE
LOW TEMP THERMAL STRIPPING
NEUTRALIZATION
SOIL  WASHING
STABILIZATION/SOLIDIFICATION
STABILIZATION/SOLIDIFICATION
STRIPPING
VITRIFICATION
ACTIVATED SLUDGE
AEROBIC BIOLOGICAL
BIOOEGRADAT ION-COMPOST ING
BIOOEGRADATION-SLURRY PHASE
BIODEGRADATION-SOLID PHASE
CHEMICAL TREATMENT
 IN SITU BIOOEGRADATION
SOIL  WASHING
ACTIVATED CARBON
ACTIVATED SLUDGE
AEROBIC BIOLOGICAL
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
 ION EXCHANGE
NEUTRALIZATION
                                                 IV-  16

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
HALOGENATED VOLATILES
                                   ENVIRONMENTAL RESOURCE ASSOCIATES
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIROSAFE TECHNOLOGIES, INC.
                                   FREEZE TECHNOLOGIES CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   HUNTER BIOSCIENCES,  INC.
                                   HUNTER BIOSCIENCES,  INC.
                                   HUNTER BIOSCIENCES,  INC.
                                   HUNTER BIOSCIENCES,  INC.
                                   HUNTER BIOSCIENCES,  INC.
                                   HUNTER BIOSCIENCES,  INC.
                                   HUNTER BIOSCIENCES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                    I IT RESEARCH INST
                                             STRIPPING
                                             ACTIVATED CARBON
                                             ACTIVATED SLUDGE
                                             AEROBIC BIOLOGICAL
                                             BIODEGRADATION•COMPOST ING
                                             BIODEGRADATION-SLURRY PHASE
                                             BIODEGRADATION-SOLID PHASE
                                             CHEMICAL OXIDATION
                                             CHEMICAL PRECIPITATION
                                             CHEMICAL REDUCTION
                                             CHLORINATION
                                             IN SITU BIODEGRADATION
                                             IN SITU SOIL FLUSHING
                                             IN SITU VACUUM & STEAM EXTRACT
                                             INCINERATION
                                             ION EXCHANGE
                                             NEUTRALIZATION
                                             SOIL WASHING
                                             STRIPPING
                                             IN SITU VACUUM & STEAM EXTRACT
                                             FREEZE CRYSTALLIZATION
                                             ACTIVATED CARBON
                                             ACTIVATED SLUDGE
                                             ADSORPTION
                                             AEROBIC BIOLOGICAL
                                             ANAEROBIC BIOLOGICAL
                                             CHEMICAL OXIDATION
                                             CHEMICAL REDUCTION
                                             LIQUID-LIQUID EXTRACTION
                                             OZONATION
                                             STRIPPING
                                             ACTIVATED CARBON
                                             ACTIVATED SLUDGE
                                             AEROBIC BIOLOGICAL
                                              IN SITU BIODEGRADATI ON
                                              IN SITU SOIL FLUSHING
                                              IN SITU VACUUM & STEAM EXTRACT
                                             STRIPPING
                                             ACTIVATED SLUDGE
                                             ADSORPTION
                                             ADSORPTION
                                             CHEMICAL OXIDATION
                                             CHEMICAL OXIDATION
                                             CHEMICAL PRECIPITATION
                                             CHEMICAL PRECIPITATION
                                             COAGULATION/FLOCCULATI ON
                                             COAGULATION/FLOCCULATION
                                              LOW TEMP THERMAL STRIPPING
                                             NEUTRALIZATION
                                             OZONATION
                                              STABILIZATION/SOLIDIFICATION
                                              STRIPPING
                                              ACTIVATED CARBON
                                                 IV-  17

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
HALOGENATEO VOLATILES
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   IIT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   1IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   IIT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                    I IT RESEARCH INST
                                    I IT RESEARCH INST
                                    INTERNATIONAL PROCESS
                                    INTERNATIONAL PROCESS
                                    INTERNATIONAL PROCESS
                                    INTERNATIONAL PROCESS
                                    INTERNATIONAL PROCESS
                                    INTERNATIONAL PROCESS
                                    INTERNATIONAL PROCESS
                                    INTERNATIONAL PROCESS
                                    INTERNATIONAL PROCESS
                                    INTERNATIONAL PROCESS
                                    INTERNATIONAL PROCESS
                                    INTERNATIONAL PROCESS
                                    INTERNATIONAL PROCESS
                                    INTERNATIONAL PROCESS
                                    INTERNATIONAL PROCESS
                                    INTERNATIONAL PROCESS
                                    INTERNATIONAL PROCESS
                                    INTERNATIONAL PROCESS
                                    INTERNATIONAL PROCESS
                                    INTERNATIONAL PROCESS
                                    INTERNATIONAL PROCESS
                                    INTERNATIONAL PROCESS
                                    IT  CORPORATION
                                    IT  CORPORATION
                                    IT  CORPORATION
                                    IT  CORPORATION
                                    IT  CORPORATION
                                    IT  CORPORATION
RESEARCH
RESEARCH
RESEARCH
RESEARCH
RESEARCH
RESEARCH
RESEARCH
RESEARCH
RESEARCH
RESEARCH
RESEARCH
RESEARCH
RESEARCH
RESEARCH
RESEARCH
RESEARCH
RESEARCH
RESEARCH
RESEARCH
RESEARCH
RESEARCH
RESEARCH
CORP
CORP
CORP
CORP
CORP
CORP
CORP
CORP
CORP
CORP
CORP
CORP
CORP
CORP
CORP
CORP
CORP
CORP
CORP
CORP
CORP
CORP
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
ADSORPTION
CATALYSIS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
CRYSTALLIZATION
FILTRATION
IN SITU RADIO FREQUENCY HEATIN
IN SITU SOIL FLUSHING
IN SITU VACUUM & STEAM EXTRACT
ION EXCHANGE
ION EXCHANGE
LOW TEMP THERMAL STRIPPING
OZONATION
SOIL WASHING
SOLVENT RECOVERY
STABILIZATION/SOLIDIFICATION
STRIPPING
UV/OZONATION
ACTIVATED CARBON
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
BIODEGRADATION-NOS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
CRYSTALLIZATION
 IN  SITU BIODEGRADATION
 INCINERATION
LIQUID-LIQUID EXTRACTION
NEUTRALIZATION
OZONATION
SOIL WASHING
SOLVENT RECOVERY
STABILIZATION/SOLIDIFICATION
STRIPPING
WET AIR OXIDATION
ACTIVATED CARBON
CATALYSIS
 CHEMICAL  OXIDATION
 CHEMICAL  REDUCTION
 LOW TEMP  THERMAL  STRIPPING
 SOLVENT  RECOVERY
                                                 IV-  18

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
HALOGENATED VOLATILES
                                   IT CORPORATION
                                   IT CORPORATION
                                   JACOBS ENGINEERING GROUP, INC.
                                   JACOBS ENGINEERING GROUP, INC.
                                   JACOBS ENGINEERING GROUP, INC.
                                   JACOBS ENGINEERING GROUP, INC.
                                   KIBER ASSOCIATES, INC.
                                   KIBER ASSOCIATES, INC.
                                   KIBER ASSOCIATES, INC.
                                   KIBER ASSOCIATES, INC.
                                   KIBER ASSOCIATES, INC.
                                   KSE, INC.
                                   KSE, INC.
                                   KSE, INC.
                                   KSE, INC.
                                   KSE, INC.
                                   KSE, INC.
                                   KSE, INC.
                                   KSE, INC.
                                   KSE, INC.
                                   MAECORP,  INC.
                                   MAECORP,  INC.
                                   MCNAMEE ADVANCED  TECHNOLOGY,  INC.
                                   HCNAMEE ADVANCED  TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED  TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED  TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED  TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED  TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED  TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED  TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED  TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED  TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED  TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED  TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED  TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED  TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED  TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED  TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED  TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED  TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED  TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED  TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED  TECHNOLOGY,  INC.
                                    MCNAMEE  ADVANCED  TECHNOLOGY,  INC.
                                    MCNAMEE  ADVANCED  TECHNOLOGY,  INC.
                                    MCNAMEE  ADVANCED  TECHNOLOGY,  INC.
                                    MCNAMEE  ADVANCED  TECHNOLOGY,  INC.
                                    MCNAMEE  ADVANCED  TECHNOLOGY,  INC.
                                    MCNAMEE  ADVANCED  TECHNOLOGY,  INC.
                                    MCNAMEE  ADVANCED  TECHNOLOGY,  INC.
                                    MCNAMEE  ADVANCED  TECHNOLOGY,  INC.
                                    MCNAMEE  ADVANCED  TECHNOLOGY,  INC.
                                    MCNAMEE ADVANCED  TECHNOLOGY,  INC.
STABILIZATION/SOLIDIFICATION
STRIPPING
ACTIVATED SLUDGE
AEROBIC BIOLOGICAL
CHEMICAL OXIDATION
LIQUID-LIQUID EXTRACTION
ACTIVATED CARBON
CHEMICAL PRECIPITATION
STABILIZATION/SOLIDIFICATION
STABILIZATION/SOLIDIFICATION
STABILIZATION/SOLIDIFICATION
ACTIVATED CARBON
ADSORPTION
CATALYSIS
CHEMICAL EXTRACTION
LOW TEMP THERMAL STRIPPING
REVERSE OSMOSIS
SOLVENT RECOVERY
STRIPPING
ULTRAFILTRATION
STRIPPING
UV/PEROXIDATION
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
BIODEGRADATION-COMPOST ING
BIOOEGRADATION-SLURRY  PHASE
BIODEGRADATION-SOLID PHASE
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
COAGULATION/FLOCCULATI ON
CRYSTALLIZATION
DEWATERING
FILTRATION
INCINERATION
ION  EXCHANGE
LIQUID-LIQUID EXTRACTION
NEUTRALIZATION
OZONATION
PACT
REVERSE  OSMOSIS
SOLVENT  RECOVERY
STABILIZATION
STABILIZATION/SOLIDIFICATION
STRIPPING
THERMAL  COMBUSTION
UV/OXIDATION
                                                 IV- 19

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
HALOGENATED VOLATILES
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MEMBRANE TECHNOLOGY & RESEARCH,  INC
                                   MEMBRANE TECHNOLOGY & RESEARCH,  INC
                                   MIDWEST RESEARCH INSTITUTE
                                   MIDWEST RESEARCH INSTITUTE
                                   MIDWEST RESEARCH INSTITUTE
                                   MIDWEST RESEARCH INSTITUTE
                                   O'BRIEN AND GERE ENGINEERS, INC.
                                   O'BRIEN AND GERE ENGINEERS, INC.
                                   O'BRIEN AND GERE ENGINEERS, INC.
                                   O'BRIEN AND GERE ENGINEERS, INC.
                                   O'BRIEN AND GERE ENGINEERS, INC.
                                   O'BRIEN AND GERE ENGINEERS, INC.
                                   O'BRIEN AND GERE ENGINEERS, INC.
                                   O'BRIEN AND GERE ENGINEERS, INC.
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   PETROLEUM  TESTING  SERVICE, INC.
                                   PROCEDYNE  CORPORATION
                                   QUALTEC, INC.
                                   OUALTEC, INC.
                                   QUALTEC, INC.
                                   RADIAN  CORPORATION
                                   RADIAN  CORPORATION
                                   RADIAN  CORPORATION
VITRIFICATION
WET AIR OXIDATION
WET AIR OXIDATION
PERVAPORATION
VAPOR SEPARATION
ACTIVATED CARBON
BIODEGRADATION-NOS
INCINERATION
MOLECULAR BEAM MASS SPEC
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
AEROBIC BIOLOGICAL
IN SITU SOIL FLUSHING
IN SITU VACUUM & STEAM EXTRACT
SOLVENT RECOVERY
STRIPPING
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
BIODEGRADATION-NOS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
CRYSTALLIZATION
DEWATERING
IN SITU BIODEGRADATION
IN SITU BIOOEGRADATION
IN SITU SOIL FLUSHING
IN SITU VACUUM & STEAM EXTRACT
INCINERATION
ION  EXCHANGE
LOW  TEMP THERMAL STRIPPING
NEUTRALIZATION
OIL-WATER  SEPARATION
SOIL WASHING
SOLVENT RECOVERY
STABILIZATION/SOLIDIFICATION
STRIPPING
THERMAL COMBUSTION
IN SITU VACUUM & STEAM EXTRACT
PYROLYSIS
CHEMICAL PRECIPITATION
ION  EXCHANGE
STABILIZATION/SOLIDIFICATION
ACTIVATED  CARBON
ACTIVATED  SLUDGE
ANAEROBIC  BIOLOGICAL
                                                 IV-  20

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
HALOGENATED VOLATILES
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGIES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RMC ENV & ANALYTICAL  LABORATORIES
                                   RMC ENV & ANALYTICAL  LABORATORIES
                                   RMC ENV & ANALYTICAL  LABORATORIES
                                   RMC ENV & ANALYTICAL  LABORATORIES
                                   RMC ENV & ANALYTICAL  LABORATORIES
                                   RMC ENV & ANALYTICAL  LABORATORIES
                                   RMC ENV & ANALYTICAL  LABORATORIES
                                   ROY F. UESTON,  INC.
                                   ROY F. UESTON,  INC.
                                   ROY F. WESTON,  INC.
                                   ROY F. UESTON,  INC.
                                   ROY F. UESTON,  INC.
                                   ROY F. UESTON,  INC.
                                   ROY F. UESTON,  INC.
                                   ROY F. UESTON,  INC.
                                   ROY F. UESTON,  INC.
                                   ROY F. UESTON,  INC.
                                   ROY F. UESTON,  INC.
                                   ROY F. UESTON,  INC.
                                   ROY F. UESTON,  INC.
                                   ROY F. UESTON,  INC.
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHLORINATION
ELECTRODIALYSIS
INCINERATION
ION EXCHANGE
OZONATION
REVERSE OSMOSIS
STABILIZATION/SOLIDIFICATION
STRIPPING
ACTIVATED CARBON
ANAEROBIC BIOLOGICAL
BIOOEGRADATION-SLURRY PHASE
BIODEGRADATION-SOLID PHASE
CHEMICAL EXTRACTION
IN SITU BIOOEGRADATION
IN SITU SOIL FLUSHING
IN SITU VACUUM & STEAM EXTRACT
SOIL UASHING
STRIPPING
ACTIVATED CARBON
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CRYSTALLIZATION
OZONATION
REVERSE OSMOSIS
STRIPPING
CHEMICAL EXTRACTION
CHEMICAL TREATMENT
IN SITU VACUUM & STEAM EXTRACT
IN SITU VITRIFICATION
INCINERATION
SOIL UASHING
STABILIZATION/SOLIDIFICATION
ACTIVATED CARBON
ACTIVATED SLUDGE
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
BIOOEGRADATION•COMPOST ING
BIOOEGRADATION-SLURRY PHASE
BIOOEGRADATI ON-SOL ID  PHASE
CENTRIFUGATION
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
                                                 IV-  21

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
HALOGENATED VOLATILES
                                   ROY F. UESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   S-CUBED
                                   SOUTHERN RESEARCH  INSTITUTE
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   THORNE ENVIRONMENTAL,  INC.
                                   THORNE ENVIRONMENTAL,  INC.
                                   THORNE ENVIRONMENTAL,  INC.
                                   THORNE ENVIRONMENTAL,  INC.
                                   THORNE ENVIRONMENTAL,  INC.
                                   THORNE ENVIRONMENTAL,  INC.
                                   TREATEK,  INC.
                                   TREATEK.  INC.
                                   TREATEK,  INC.
                                   TREATEK,  INC.
                                   TREATEK,  INC.
                                   ULTROX  INTERNATIONAL
                                   ULTROX  INTERNATIONAL
                                   VAPEX
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                             COAGULATION/FLOCCULATION
                                             FILTRATION
                                             FILTRATION
                                             FLOTATION THICKENING
                                             GRAVITY THICKENING
                                             IN SITU BICOEGRADATION
                                             IN SITU RADIO FREQUENCY HEATIN
                                             IN SITU SOIL FLUSHING
                                             IN SITU VACUUM & STEAM EXTRACT
                                             INCINERATION
                                             ION EXCHANGE
                                             LOU TEMP THERMAL STRIPPING
                                             NEUTRALIZATION
                                             OZONATION
                                             PHYSICAL TREATMENTS
                                             SEDIMENTATION
                                             SOIL UASHING
                                             STABILIZATION/SOLIDIFICATION
                                             STRIPPING
                                             THERMAL TREATMENT-NOS
                                             LIQUID-LIQUID EXTRACTION
                                             IN SITU BICOEGRADATION
                                             ACTIVATED SLUDGE
                                             ADSORPTION
                                             AEROBIC BIOLOGICAL
                                             BIOOEGRADATION-SLURRY PHASE
                                             BIOOEGRADATION-SOLID PHASE
                                             IN SITU BIODEGRADATION
                                             IN SITU SOIL FLUSHING
                                             IN SITU VACUUM & STEAM EXTRACT
                                             ION EXCHANGE
                                             SOIL UASHING
                                             BIOOEGRADATION-SLURRY PHASE
                                             BIODEGRADATION-SOLID PHASE
                                             IN SITU BIODEGRADATION
                                             IN SITU SOIL FLUSHING
                                             UV/DEEP TREATMENT
                                             VAPOR  EXTRACTION
                                             ADSORPTION
                                             AEROBIC BIOLOGICAL
                                             CHEMICAL PRECIPITATION
                                             SOIL UASHING
                                             STRIPPING
                                             UV/HYDROGEN PEROXIDE
                                             UV/OZONATION
                                             IN SITU VACUUM & STEAM EXTRACT
                                             ACTIVATED SLUDGE
                                             ADSORPTION
                                             ANAEROBIC BIOLOGICAL
                                             CHEMICAL EXTRACTION
                                             CHEMICAL EXTRACTION
                                             CHEMICAL OXIDATION
                                             CHEMICAL PRECIPITATION
                                                 IV-  22

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
HALOGENATEO VOLATILES
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   WESTERN RESEARCH INSTITUTE
                                   WESTERN RESEARCH INSTITUTE
                                   WESTERN RESEARCH INSTITUTE
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
                                             INCINERATION
                                             ION EXCHANGE
                                             LIQUID-LIQUID EXTRACTION
                                             NEUTRALIZATION
                                             PACT
                                             REVERSE OSMOSIS
                                             STABILIZATION/SOLIDIFICATION
                                             STRIPPING
                                             VITRIFICATION
                                             WET AIR OXIDATION
                                             BIOOEGRADATION-SLURRY PHASE
                                             IN SITU BIODEGRADATION
                                             IN SITU SOIL FLUSHING
                                             ACTIVATED CARBON
                                             ACTIVATED SLUDGE
                                             BIOOEGRADATION-NOS
                                             CHEMICAL PRECIPITATION
                                             CHEMICAL REDUCTION
                                             REVERSE OSMOSIS
                                             STABILIZATION/SOLIDIFICATION
 INORGANIC CORROSIVES
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
APPLIED
APPLIED
APPLIED
APPLIED
APPLIED
APPLIED
APPLIED
APPLIED
APPLIED
                                            SURFACE
                                            SURFACE
                                            SURFACE
                                            SURFACE
                                            SURFACE
                                            SURFACE
                                            SURFACE
                                            SURFACE
                                            SURFACE
TECHNOLOGY
TECHNOLOGY
TECHNOLOGY
TECHNOLOGY
TECHNOLOGY
TECHNOLOGY
TECHNOLOGY
TECHNOLOGY
TECHNOLOGY
ACTIVATED CARBON
ADSORPTION
CATALYSIS
CENTRIFUGATION
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CRYSTALLIZATION
FILTRATION
IN SITU VACUUM & STEAM EXTRACT
INCINERATION
INCINERATION
LIQUID-LIQUID EXTRACTION
LOW TEMP THERMAL STRIPPING
NEUTRALIZATION
SOLVENT RECOVERY
STABILIZATION/SOLIDIFICATION
STRIPPING
THERMAL PROCESSING
WET AIR OXIDATION
WET AIR OXIDATION
ACTIVATED CARBON
ADSORPTION
CATALYSIS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL TREATMENT
CHLORINATION
CRYSTALLIZATION
                                                 IV- 23

-------
                                TABLE tt 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
INORGANIC CORROSIVES
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLI ED • SUR FACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M S C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   ENERGY&ENVIRONMENTAL  RESEARCH CORP.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
ELECTRODIALYSIS
ELECTROLYSIS
FLUID-BED STRIPPING
IN SITU SOIL FLUSHING
ION EXCHANGE
LOW TEMP THERMAL STRIPPING
OZONATION
REVERSE OSMOSIS
SOIL WASHING
SOLIDIFICATION
STABILIZATION
STRIPPING
THERMAL DECOMPOSITION
ULTRAFILTRATION
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
BIOOEGRADATION-NOS
CATALYSIS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
CRYSTALLIZATION
IN  SITU SOIL  FLUSHING
INCINERATION
ION EXCHANGE
LIQUID-LIQUID  EXTRACTION
LOU TEMP THERMAL STRIPPING
NEUTRALIZATION
OZONATION
REVERSE OSMOSIS
SOLVENT RECOVERY
STABILIZATION
STRIPPING
VITRIFICATION
WET AIR OXIDATION
INCINERATION
ACTIVATED SLUDGE
ADSORPTION
BIOOEGRADATION-NOS
BIOOEGRADATION-NOS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
FILTRATION
                                                 IV-  24

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
INORGANIC CORROSIVES
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENVIRONMENTAL RESOURCE ASSOCIATES
                                   ENVIRONMENTAL RESOURCE ASSOCIATES
                                   ENVIRONMENTAL RESOURCE ASSOCIATES
                                   ENVIRONMENTAL RESOURCE ASSOCIATES
                                   ENVIRONMENTAL RESOURCE ASSOCIATES
                                   ENVIRONMENTAL RESOURCE ASSOCIATES
                                   ENVIRONMENTAL RESOURCE ASSOCIATES
                                   ENVIRONMENTAL RESOURCE ASSOCIATES
                                   ENVIRONMENTAL RESOURCE ASSOCIATES
                                   GENERAL  PHYSICS CORPORATION
                                   GENERAL  PHYSICS CORPORATION
                                   GENERAL  PHYSICS CORPORATION
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   INTERNATIONAL PROCESS RESEARCH  CORP
                                   INTERNATIONAL PROCESS RESEARCH  CORP
                                   INTERNATIONAL PROCESS RESEARCH  CORP
                                   INTERNATIONAL PROCESS RESEARCH  CORP
                                   INTERNATIONAL PROCESS RESEARCH  CORP
                                   INTERNATIONAL PROCESS RESEARCH  CORP
                                   INTERNATIONAL PROCESS RESEARCH  CORP
                                   INTERNATIONAL PROCESS RESEARCH  CORP
                                    INTERNATIONAL PROCESS RESEARCH  CORP
                                    INTERNATIONAL PROCESS RESEARCH  CORP
                                    INTERNATIONAL PROCESS RESEARCH  CORP
                                    INTERNATIONAL PROCESS RESEARCH  CORP
                                    INTERNATIONAL PROCESS RESEARCH  CORP
                                    INTERNATIONAL PROCESS RESEARCH  CORP
                                    INTERNATIONAL PROCESS RESEARCH  CORP
                                    INTERNATIONAL PROCESS RESEARCH  CORP
                                    INTERNATIONAL PROCESS RESEARCH  CORP
                                    INTERNATIONAL PROCESS RESEARCH  CORP
                                    INTERNATIONAL PROCESS RESEARCH  CORP
                                    INTERNATIONAL PROCESS RESEARCH  CORP
                                    INTERNATIONAL PROCESS RESEARCH  CORP
                                             IN SITU BIOOEGRADATION
                                             IN SITU SOIL FLUSHING
                                             IN SITU VACUUM & STEAM EXTRACT
                                             INCINERATION
                                             ION EXCHANGE
                                             LOW TEMP THERMAL STRIPPING
                                             NEUTRALIZATION
                                             SOIL WASHING
                                             STABILIZATION/SOLIDIFICATION
                                             STABILIZATION/SOLIDIFICATION
                                             STRIPPING
                                             VITRIFICATION
                                             ACTIVATED CARBON
                                             ACTIVATED SLUDGE
                                             AEROBIC BIOLOGICAL
                                             CHEMICAL OXIDATION
                                             CHEMICAL PRECIPITATION
                                             CHEMICAL REDUCTION
                                             ION EXCHANGE
                                             NEUTRALIZATION
                                             STRIPPING
                                             ADSORPTION
                                             IN SITU BIOOEGRADATION
                                             OZONATION
                                             ADSORPTION
                                             ADSORPTION
                                             CHEMICAL OXIDATION
                                             CHEMICAL OXIDATION
                                             CHEMICAL PRECIPITATION
                                             CHEMICAL PRECIPITATION
                                             COAGULATION/FLOCCULATION
                                             COAGULAT ION/F LOCCULAT I ON
                                             ACTIVATED CARBON
                                             ADSORPTION
                                             AEROBIC  BIOLOGICAL
                                             ANAEROBIC BIOLOGICAL
                                             BIODEGRADATION-NOS
                                             CHEMICAL EXTRACTION
                                             CHEMICAL OXIDATION
                                             CHEMICAL PRECIPITATION
                                             CHEMICAL REDUCTION
                                             CHEMICAL TREATMENT
                                             CHLORINATION
                                             CRYSTALLIZATION
                                              IN SITU  BIOOEGRAOATION
                                              INCINERATION
                                              ION  EXCHANGE
                                              LIQUID-LIQUID EXTRACTION
                                             NEUTRALIZATION
                                             OZONATION
                                              SOIL WASHING
                                              SOLVENT  RECOVERY
                                              STABILIZATION/SOLIDIFICATION
                                                 IV- 25

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
INORGANIC CORROSIVES
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   IT CORPORATION
                                   IT CORPORATION
                                   IT CORPORATION
                                   JACOBS ENGINEERING GROUP, INC.
                                   JACOBS ENGINEERING GROUP, INC.
                                   KIBER ASSOCIATES, INC.
                                   KIBER ASSOCIATES, INC.
                                   KIBER ASSOCIATES, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   HCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   O'BRIEN AND  GERE ENGINEERS,  INC.
                                   O'BRIEN AND  GERE ENGINEERS,  INC.
                                   O'BRIEN AND  GERE ENGINEERS,  INC.
                                   O'BRIEN AND  GERE ENGINEERS,  INC.
                                   REMEDIATION  TECHNOLOGIES
                                   REMEDIATION  TECHNOLOGIES
                                   REMEDIATION  TECHNOLOGIES
                                   REMEDIATION  TECHNOLOGIES
                                   RIVER OAK ASSOCIATES
STRIPPING
WET AIR OXIDATION
CHEMICAL OXIDATION
ELECTROCHEMICAL SEPARATION
NEUTRALIZATION
PHYSICAL SEPARATION
STABILIZATION/SOLIDIFICATION
STABILIZATION/SOLIDIFICATION
STABILIZATION/SOLIDIFICATION
STABILIZATION/SOLIDIFICATION
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
BICOEGRADATION-COMPOSTING
BIOOEGRADATION-SLURRY PHASE
BIODEGRADATION-SOLID PHASE
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
COAGULATION/FLOCCULATION
CRYSTALLIZATION
DEUATERING
FILTRATION
INCINERATION
ION EXCHANGE
LIQUID-LIQUID  EXTRACTION
NEUTRALIZATION
OZONATION
PACT
REVERSE OSMOSIS
SOLVENT RECOVERY
STABILIZATION
STABILIZATION/SOLIDIFICATION
STRIPPING
THERMAL COMBUSTION
UV/OXIDATION
VITRIFICATION
WET AIR OXIDATION
WET AIR OXIDATION
CHEMICAL OXIDATION
CHEMICAL REDUCTION
CHLORINATION
OZONATION
CHEMICAL EXTRACTION
 IN SITU BIODEGRADATION
 IN SITU SOIL  FLUSHING
SOIL  WASHING
ACTIVATED  CARBON
                                                 IV-  26

-------
CONTAMINANT GROUP
                                TABLE n 4 (CONTINUED)





                                   COMPANY NAME
TREATMENT TECHNOLOGY
INORGANIC CORROSIVES
RIVER OAK ASSOCIATES
RIVER OAK ASSOCIATES
RIVER OAK ASSOCIATES
RIVER OAK ASSOCIATES
RIVER OAK ASSOCIATES
RIVER OAK ASSOCIATES
RIVER OAK ASSOCIATES
RIVER OAK ASSOCIATES
RIVER OAK ASSOCIATES
ROY F. WESTON, INC.
ROY F. WESTON, INC.
ROY F. UESTON, INC.
ROY F. WESTON, INC.
ROY F. WESTON, INC.
ROY F. WESTON, INC.
ROY F. WESTON, INC.
ROY F. WESTON, INC.
ROY F. WESTON, INC.
ROY F. WESTON, INC.
ROY F. WESTON, INC.
ROY F. WESTON, INC.
ROY F. WESTON, INC.
ROY F. WESTON, INC.
ROY F. WESTON, INC.
ROY F. WESTON, INC.
ROY F. WESTON, INC.
ROY F. WESTON, INC.
ROY F. WESTON, INC.
ROY F. WESTON, INC.
ROY F. WESTON, INC.
VERSAR INC.
VERSAR INC.
VERSAR INC.
VERSAR INC.
VERSAR INC.
VERSAR INC.
VERSAR INC.
VERSAR INC.
VERSAR INC.
VERSAR INC.
ZENON ENVIRONMENTAL
ZENON ENVIRONMENTAL
ZENON ENVIRONMENTAL
ZENON ENVIRONMENTAL
INORGANIC CYANIDES APPLIED SURFACE TECHNOLOGY
APPLIED SURFACE TECHNOLOGY
APPLIED SURFACE TECHNOLOGY
APPLIED SURFACE TECHNOLOGY
APPLIED SURFACE TECHNOLOGY
APPLIED SURFACE TECHNOLOGY
APPLIED SURFACE TECHNOLOGY
APPLIED SURFACE TECHNOLOGY

ADSORPTION
CHLORINATION
CRYSTALLIZATION
ELECTROOIALYSIS
ION EXCHANGE
NEUTRALIZATION
NEUTRALIZATION
OZONATION
STRIPPING
ACTIVATED CARBON
CENTRIFUGATION
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
COAGULATION/FLOCCULATION
FILTRATION
FILTRATION
FLOTATION THICKENING
GRAVITY THICKENING
IN SITU SOIL FLUSHING
ION EXCHANGE
NEUTRALIZATION
OZONATION
SEDIMENTATION
SOIL WASHING
STABILIZATION/SOLIDIFICATION
STRIPPING
ACTIVATED SLUDGE
ADSORPTION
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
ION EXCHANGE
LIQUID-LIQUID EXTRACTION
NEUTRALIZATION
STABILIZATION/SOLIDIFICATION
WET AIR OXIDATION
ACTIVATED SLUDGE
BIODEGRADATION-NOS
REVERSE OSMOSIS
STABILIZATION/SOLIDIFICATION
ACTIVATED CARBON
ADSORPTION
CATALYSIS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL TREATMENT
CHLORINATION
                                                 IV- 27

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
INORGANIC CYANIDES
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   BIOSCIENCE MANAGEMENT, INC.
                                   BIOSCIENCE MANAGEMENT, INC.
                                   BIOSCIENCE MANAGEMENT, INC.
                                   BIOSCIENCE MANAGEMENT, INC.
                                   BIOSCIENCE MANAGEMENT, INC.
                                   BIOSCIENCE MANAGEMENT, INC.
                                   BIOSCIENCE MANAGEMENT, INC.
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E H & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                             CRYSTALLIZATION
                                             ELECTRCOIALYSIS
                                             ELECTROLYSIS
                                             FLUID-BED STRIPPING
                                             IN SITU SOIL FLUSHING
                                             ION EXCHANGE
                                             LOW TEMP THERMAL STRIPPING
                                             OZONATION
                                             REVERSE OSMOSIS
                                             SOIL WASHING
                                             SOLIDIFICATION
                                             STABILIZATION
                                             STRIPPING
                                             THERMAL DECOMPOSITION
                                             ULTRAFILTRATION
                                             AEROBIC BIOLOGICAL
                                             BIOOEGRADATION-COMPOSTING
                                             BIODEGRADATION-SLURRY PHASE
                                             8IOOEGRADATION-SOLID PHASE
                                             IN SITU BIOOEGRADATION
                                             NEUTRALIZATION
                                             STRIPPING
                                             ACTIVATED CARBON
                                             ACTIVATED SLUDGE
                                             ADSORPTION
                                             AEROBIC BIOLOGICAL
                                             ANAEROBIC BIOLOGICAL
                                             BIODEGRADATION-NOS
                                             CATALYSIS
                                             CHEMICAL EXTRACTION
                                             CHEMICAL OXIDATION
                                             CHEMICAL PRECIPITATION
                                             CHEMICAL REDUCTION
                                             CHEMICAL TREATMENT
                                             CHLORINATION
                                             CRYSTALLIZATION
                                             IN SITU SOIL  FLUSHING
                                             INCINERATION
                                             ION  EXCHANGE
                                             LIQUID-LIQUID  EXTRACTION
                                             LOW  TEMP THERMAL  STRIPPING
                                             NEUTRALIZATION
                                             OZONATION
                                             REVERSE OSMOSIS
                                             SOLVENT RECOVERY
                                             STABILIZATION
                                             STRIPPING
                                             VITRIFICATION
                                             WET  AIR OXIDATION
                                             ACTIVATED  SLUDGE
                                             ADSORPTION
                                             BIODEGRADATION-NOS
                                             BIOOEGRADATION-NOS
                                                 IV-  28

-------
CONTAMINANT GROUP
                                TABLE # A (CONTINUED)

                                   COMPANY NAME
TREATMENT TECHNOLOGY
INORGANIC CYANIDES
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   GENERAL  PHYSICS CORPORATION
                                   GENERAL  PHYSICS CORPORATION
                                   GENERAL  PHYSICS CORPORATION
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    IT CORPORATION
                                    IT CORPORATION
                                    IT CORPORATION
                                    IT CORPORATION
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                    MCNAMEE ADVANCED TECHNOLOGY, INC.
                                    MCNAMEE ADVANCED TECHNOLOGY, INC.
                                    MCNAMEE ADVANCED TECHNOLOGY, INC.
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION  '
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
FILTRATION
IN SITU BIODEGRADATION
IN SITU SOIL FLUSHING
IN SITU VACUUM & STEAM EXTRACT
INCINERATION
ION EXCHANGE
LOW TEMP THERMAL STRIPPING
NEUTRALIZATION
SOIL WASHING
STABILIZATION/SOLIDIFICATION
STABILIZATION/SOLIDIFICATION
STRIPPING
VITRIFICATION
ADSORPTION
IN SITU BIODEGRADATION
OZONATION
ACTIVATED CARBON
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
BIODEGRADATION-NOS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
CRYSTALLIZATION
 IN SITU BIODEGRADATION
 INCINERATION
 ION  EXCHANGE
 LIQUID-LIQUID  EXTRACTION
 NEUTRALIZATION
OZONATION
 SOIL WASHING
 SOLVENT  RECOVERY
 STABILIZATION/SOLIDIFICATION
 STRIPPING
 WET  AIR  OXIDATION
 CHEMICAL  EXTRACTION
 CHEMICAL  OXIDATION
 CHLORINATION
 STABILIZATION/SOLIDIFICATION
 ACTIVATED  CARBON
 ACTIVATED  SLUDGE
 ADSORPTION
 AEROBIC BIOLOGICAL
                                                 IV- 29

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
INORGANIC CYANIDES
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   HCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   O'BRIEN AND GERE ENGINEERS,  INC.
                                   O'BRIEN AND GERE ENGINEERS,  INC.
                                   O'BRIEN AND GERE ENGINEERS,  INC.
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGIES
                                   RIVER  OAK ASSOCIATES
                                   RIVER  OAK ASSOCIATES
                                   RIVER  OAK ASSOCIATES
                                   RIVER  OAK ASSOCIATES
                                   RIVER  OAK ASSOCIATES
                                   RIVER  OAK ASSOCIATES
                                   RIVER  OAK ASSOCIATES
                                   RIVER  OAK ASSOCIATES
                                   RIVER  OAK ASSOCIATES
                                   RIVER  OAK ASSOCIATES
                                   ROY  F. WESTON,  INC.
                                   ROY  F. UESTON,  INC.
                                   ROY  F. UESTON,  INC.
                                   ROY  F. WESTON,  INC.
                                   ROY  F. WESTON,  INC.
                                   ROY  F. WESTON,  INC.
ANAEROBIC BIOLOGICAL
BIODEGRADATION-COMPOSTING
BIODEGRADATION-SLURRY PHASE
BIODEGRADATION-SOLID PHASE
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
COAGULATION/FLOCCULATI ON
CRYSTALLIZATION
DEWATERING
FILTRATION
INCINERATION
ION EXCHANGE
LIQUID-LIQUID EXTRACTION
NEUTRALIZATION
OZONATION
PACT
REVERSE OSMOSIS
SOLVENT RECOVERY
STABILIZATION
STABILIZATION/SOLIDIFICATION
STRIPPING
THERMAL COMBUSTION
UV/OXIDATION
VITRIFICATION
WET AIR OXIDATION
WET AIR OXIDATION
CHEMICAL OXIDATION
CHLORINATION
OZONATION
CHEMICAL EXTRACTION
IN SITU BIODEGRADATION
IN SITU SOIL  FLUSHING
SOIL WASHING
ACTIVATED CARBON
ADSORPTION
CHLORINATION
CRYSTALLIZATION
ELECTROOIALYSIS
ION EXCHANGE
NEUTRALIZATION
NEUTRALIZATION
OZONATION
STRIPPING
ACTIVATED CARBON
CENTRIFUGATION
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
                                                 IV-  30

-------
CONTAMINANT GROUP
                                TABLE # 4 (CONTINUED)

                                   COMPANY NAME
TREATMENT TECHNOLOGY
INORGANIC CYANIDES
                                   ROY F. WESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY f. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   THORNE ENVIRONMENTAL,  INC.
                                   THORNE ENVIRONMENTAL,  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   WESTERN  RESEARCH INSTITUTE
                                   WESTERN  RESEARCH INSTITUTE
                                   WESTERN  RESEARCH INSTITUTE
                                   UESTERN  RESEARCH INSTITUTE
                                   WESTERN  RESEARCH INSTITUTE
                                   WESTERN  RESEARCH INSTITUTE
                                   WESTERN  RESEARCH INSTITUTE
                                   UESTERN  RESEARCH INSTITUTE
                                   UESTERN  RESEARCH INSTITUTE
                                    WESTERN  RESEARCH INSTITUTE
                                    WESTERN  RESEARCH INSTITUTE
                                    WESTERN  RESEARCH INSTITUTE
                                    WESTERN  RESEARCH INSTITUTE
                                    WESTERN RESEARCH INSTITUTE
                                    UESTERN RESEARCH INSTITUTE
                                    ZENON ENVIRONMENTAL
CHEMICAL TREATMENT
CHLORINATION
COAGULATION/FLOCCULATION
FILTRATION
FILTRATION
FLOTATION THICKENING
GRAVITY THICKENING
IN SITU SOIL FLUSHING
ION EXCHANGE
NEUTRALIZATION
OZONATION
SEDIMENTATION
SOIL WASHING
STABILIZATION/SOLIDIFICATION
STRIPPING
ACTIVATED SLUDGE
ADSORPTION
AEROBIC BIOLOGICAL
BIOOEGRADATION-SLURRY  PHASE
BIOOEGRADATION-SOLID PHASE
IN SITU BIODEGRADATION
IN SITU SOIL FLUSHING
IN SITU VACUUM  &  STEAM EXTRACT
ION EXCHANGE
SOIL UASHING
STABILIZATION/SOLIDIFICATION
UV/DEEP TREATMENT
ACTIVATED SLUDGE
ADSORPTION
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
 ION EXCHANGE
LIQUID-LIQUID EXTRACTION
NEUTRALIZATION
STABILIZATION/SOLIDIFICATION
UET AIR OXIDATION
ACTIVATED CARBON
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHLORINATION
DEUATERING
ELECTROCOAGULATION
 ION  EXCHANGE
 LIQUID-SOLID  SEPARATION
 NEUTRALIZATION
OZONATION
 REVERSE OSMOSIS
 STRIPPING
 ACTIVATED  SLUDGE
                                                 IV- 31

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
INORGANIC CYANIDES
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
                                             BIOOEGRADATION-NOS
                                             REVERSE OSMOSIS
                                             STABILIZATION/SOLIDIFICATION
NONHALOGENATED NONVOLATILES
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
BIOSCIENCE MANAGEMENT,  INC.
BIOSCIENCE MANAGEMENT,  INC.
BIOSCIENCE MANAGEMENT,  INC.
BIOSCIENCE MANAGEMENT,  INC.
BIOSCIENCE MANAGEMENT,  INC.
BIOSCIENCE MANAGEMENT,  INC.
BIOSCIENCE MANAGEMENT,  INC.
CAA BIOREMEDIATION SYSTEMS
CAA BIOREMEDIATION SYSTEMS
CAA BIOREMEDIATION SYSTEMS
CAA BIOREMEDIATION SYSTEMS
CAA BIOREMEDIATION SYSTEMS
CAA BIOREMEDIATION SYSTEMS
CAA BIOREMEDIATION SYSTEMS
CAA BIOREMEDIATION SYSTEMS
CAA BIOREMEDIATION SYSTEMS
CAA BIOREMEDIATION SYSTEMS
CAA BIOREMEDIATION SYSTEMS
CAA BIOREMEDIATION SYSTEMS
CAA BIOREMEDIATION SYSTEMS
CAA BIOREMEDIATION SYSTEMS
CAA BIOREMEDIATION SYSTEMS
CAA BIOREMEDIATION SYSTEMS
COMBUSTION ENGINEERING,  INC.
COMBUSTION ENGINEERING,  INC.
D D ENVIRONMENTAL
ACTIVATED CARBON
ADSORPTION
CATALYSIS
CENTRIFUGATION
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CRYSTALLIZATION
FILTRATION
IN SITU VACUUM & STEAM EXTRACT
INCINERATION
INCINERATION
LIQUID-LIQUID EXTRACTION
LOW TEMP THERMAL STRIPPING
NEUTRALIZATION
SOLVENT RECOVERY
STABILIZATION/SOLIDIFICATION
STRIPPING
THERMAL PROCESSING
WET AIR OXIDATION
WET AIR OXIDATION
AEROBIC BIOLOGICAL
BIODEGRADATION-COMPOST ING
BIODEGRADATION-SLURRY  PHASE
BIODEGRADATION-SOLID PHASE
IN SITU BIODEGRADATION
NEUTRALIZATION
STRIPPING
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
BIOOEGRADATION-SOLID PHASE
CHEMICAL EXTRACTION
IN SITU BIODEGRADATION
IN SITU SOIL  FLUSHING
IN SITU VACUUM  &  STEAM EXTRACT
LIQUID-LIQUID EXTRACTION
LOW TEMP THERMAL  STRIPPING
NEUTRALIZATION
NEUTRALIZATION
SOIL  WASHING
STRIPPING
IN SITU BIODEGRADATION
LOW TEMP THERMAL  EXTRACTION
ACTIVATED SLUDGE
                                                 IV- 32

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
NONHALOGENATED NONVOLATILES
                                   D D ENVIRONMENTAL
                                   D D ENVIRONMENTAL
                                   D D ENVIRONMENTAL
                                   D D ENVIRONMENTAL
                                   0 D ENVIRONMENTAL
                                   D 0 ENVIRONMENTAL
                                   0 D ENVIRONMENTAL
                                   D 0 ENVIRONMENTAL
                                   D D ENVIRONMENTAL
                                   D D ENVIRONMENTAL
                                   D D ENVIRONMENTAL
                                   D D ENVIRONMENTAL
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   ENERGY&ENVIRONMENTAL RESEARCH CORP.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                    ENSOTECH,  INC.
                                    ENSOTECH,  INC.
                                             ADSORPTION
                                             AEROBIC BIOLOGICAL
                                             ANAEROBIC BIOLOGICAL
                                             BIODEGRADATION-SLURRY PHASE
                                             BIODEGRADATION-SOLID PHASE
                                             CHEMICAL EXTRACTION
                                             CHEMICAL TREATMENT
                                             IN SITU BIODEGRADATION
                                             IN SITU SOIL FLUSHING
                                             IN SITU VACUUM & STEAM EXTRACT
                                             ION EXCHANGE
                                             SOIL WASHING
                                             ACTIVATED CARBON
                                             ACTIVATED SLUDGE
                                             ADSORPTION
                                             ANAEROBIC BIOLOGICAL
                                             BIOOEGRADATION-COMPOST ING
                                             BIOOEGRADATION-SLURRY PHASE
                                             BIODEGRADATION-SOLID PHASE
                                             CHEMICAL EXTRACTION
                                             CHEMICAL OXIDATION
                                             CHEMICAL PRECIPITATION
                                             CHEMICAL REDUCTION
                                             CHEMICAL TREATMENT
                                             CHLORINATION
                                             IN SITU BIODEGRADATION
                                             IN SITU SOIL FLUSHING
                                             IN SITU VACUUM & STEAM EXTRACT
                                             IN SITU VITRIFICATION
                                             OZONATION
                                             SOIL WASHING
                                             SOLVENT RECOVERY
                                             STRIPPING
                                             INCINERATION
                                             ACTIVATED SLUDGE
                                             ADSORPTION
                                             BIOOEGRADATI ON-NOS
                                             8IOOEGRADATION-NOS
                                             CHEMICAL EXTRACTION
                                             CHEMICAL OXIDATION
                                             CHEMICAL PRECIPITATION
                                             CHEMICAL REDUCTION
                                             CHEMICAL TREATMENT
                                             CHLORINATION
                                             FILTRATION
                                             IN  SITU BIODEGRADATION
                                             IN  SITU SOIL  FLUSHING
                                             IN  SITU VACUUM &  STEAM EXTRACT
                                             INCINERATION
                                             ION  EXCHANGE
                                             LOW  TEMP THERMAL  STRIPPING
                                             NEUTRALIZATION
                                             SOIL WASHING
                                                 IV-  33

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
NONHALOGENATEO NONVOLATILES
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENVIRONMENTAL RESOURCE ASSOCIATES
                                   ENVIRONMENTAL RESOURCE ASSOCIATES
                                   ENVIRONMENTAL RESOURCE ASSOCIATES
                                   ENVIRONMENTAL RESOURCE ASSOCIATES
                                   ENVIRONMENTAL RESOURCE ASSOCIATES
                                   ENVIRONMENTAL RESOURCE ASSOCIATES
                                   ENVIRONMENTAL RESOURCE ASSOCIATES
                                   ENVIRONMENTAL RESOURCE ASSOCIATES
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   GENERAL  PHYSICS CORPORATION
                                   GENERAL  PHYSICS CORPORATION
                                   GENERAL  PHYSICS CORPORATION
                                   GENERAL  PHYSICS CORPORATION
                                   GENERAL  PHYSICS CORPORATION
                                   GENERAL  PHYSICS CORPORATION
                                   GENERAL  PHYSICS CORPORATION
                                   GENERAL  PHYSICS CORPORATION
                                   GENERAL  PHYSICS CORPORATION
                                   GENERAL  PHYSICS CORPORATION
                                   HUNTER BIOSCIENCES,  INC.
                                   HUNTER BIOSCIENCES,  INC.
                                   HUNTER BIOSCIENCES,  INC.
                                   HUNTER BIOSCIENCES,  INC.
                                   HUNTER BIOSCIENCES,  INC.
                                   HUNTER BIOSCIENCES,  INC.
                                   HUNTER BIOSCIENCES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
STABILIZATION/SOLIDIFICATION
STABILIZATION/SOLIDIFICATION
STRIPPING
VITRIFICATION
ACTIVATED CARBON
ACTIVATED SLUDGE
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
ION EXCHANGE
NEUTRALIZATION
STRIPPING
ACTIVATED CARBON
ACTIVATED SLUDGE
AEROBIC BIOLOGICAL
BIODEGRADATION-COMPOSTING
BIODEGRADATION-SLURRY PHASE
BIODEGRADATION-SOLID PHASE
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHLORINATION
IN SITU BIOOEGRAOATION
IN SITU SOIL  FLUSHING
IN SITU VACUUM & STEAM EXTRACT
INCINERATION
ION EXCHANGE
NEUTRALIZATION
SOIL WASHING
STRIPPING
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
CHEMICAL OXIDATION
CHEMICAL REDUCTION
LIQUID-LIQUID EXTRACTION
OZONATION
STRIPPING
ACTIVATED CARBON
ACTIVATED SLUDGE
AEROBIC BIOLOGICAL
 IN SITU BIODEGRADATION
 IN SITU SOIL  FLUSHING
 IN SITU VACUUM & STEAM EXTRACT
STRIPPING
ACTIVATED SLUDGE
ADSORPTION
ADSORPTION
CHEMICAL OXIDATION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
                                                 IV-  34

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
COMPANY NAME
TREATMENT TECHNOLOGY
NONHALOGENATEO NONVOLATILES
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                    I IT RESEARCH INST
                                   I IT RESEARCH INST
                                    IT CORPORATION
                                    IT CORPORATION
                                    IT CORPORATION
                                    IT CORPORATION
                                    IT CORPORATION
                                    IT CORPORATION
                                    IT CORPORATION
                                    IT CORPORATION
                                    IT CORPORATION
                                    IT CORPORATION
                                    IT CORPORATION
                                    IT CORPORATION
                                    IT CORPORATION
                                    IT CORPORATION
                                    JACOBS ENGINEERING GROUP, INC.
                                    JACOBS ENGINEERING GROUP, INC.
                                    JACOBS ENGINEERING GROUP, INC.
                                    JACOBS ENGINEERING GROUP, INC.
                                             CHEMICAL PRECIPITATION
                                             CHLORINATION
                                             COAGULATION/FLOCCULATION
                                             COAGULATI ON/ FLOCCULATI ON
                                             LOU TEMP THERMAL STRIPPING
                                             NEUTRALIZATION
                                             OZONATION
                                             STABILIZATION/SOLIDIFICATION
                                             STRIPPING
                                             ACTIVATED CARBON
                                             ACTIVATED CARBON
                                             ACTIVATED SLUDGE
                                             ADSORPTION
                                             ADSORPTION
                                             CATALYSIS
                                             CHEMICAL EXTRACTION
                                             CHEMICAL OXIDATION
                                             CHEMICAL PRECIPITATION
                                             CHEMICAL REDUCTION
                                             CHEMICAL TREATMENT
                                             CHLORINATION
                                             CRYSTALLIZATION
                                             FILTRATION
                                             IN SITU RADIO  FREQUENCY  HEATIN
                                             IN SITU SOIL FLUSHING
                                             IN SITU VACUUM & STEAM EXTRACT
                                             ION EXCHANGE
                                             ION EXCHANGE
                                             LOW TEMP THERMAL STRIPPING
                                             OZONATION
                                             SOIL WASHING
                                             SOLVENT RECOVERY
                                             STABILIZATION/SOLIDIFICATION
                                             STRIPPING
                                             UV/OZONATION
                                             ACTIVATED CARBON
                                             AEROBIC BIOLOGICAL
                                             CATALYSIS
                                             CHEMICAL EXTRACTION
                                             CHEMICAL OXIDATION
                                             CHEMICAL PRECIPITATION
                                             CHEMICAL REDUCTION
                                             CHLORINATION
                                             ELECTROCHEMICAL  SEPARATION
                                             LIQUID-LIQUID  EXTRACTION
                                             LOW TEMP THERMAL STRIPPING
                                             REVERSE OSMOSIS
                                             STABILIZATION/SOLIDIFICATION
                                             WET AIR OXIDATION
                                             ACTIVATED SLUDGE
                                             AEROBIC  BIOLOGICAL
                                             CHEMICAL OXIDATION
                                             LIQUID-LIQUID  EXTRACTION
                                                 IV- 35

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
NONHALOGENATED NONVOLATILES
                                   KIBER ASSOCIATES, INC.
                                   KIBER ASSOCIATES, INC.
                                   KIBER ASSOCIATES, INC.
                                   KIBER ASSOCIATES, INC.
                                   KIBER ASSOCIATES, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MIDWEST RESEARCH INSTITUTE
                                   MIDWEST RESEARCH INSTITUTE
                                   MIDWEST RESEARCH INSTITUTE
                                   MIDWEST RESEARCH INSTITUTE
                                   O'BRIEN AND  GERE ENGINEERS,  INC.
                                   O'BRIEN AND  GERE ENGINEERS,  INC.
                                   O'BRIEN AND  GERE ENGINEERS,  INC.
                                   O'BRIEN AND  GERE ENGINEERS,  INC.
                                   O'BRIEN AND  GERE ENGINEERS,  INC.
                                   O'BRIEN AND  GERE ENGINEERS,  INC.
                                   O'BRIEN AND  GERE ENGINEERS,  INC.
                                   O'BRIEN AND  GERE ENGINEERS,  INC.
                                   O'BRIEN AND  GERE ENGINEERS,  INC.
                                   O'BRIEN AND  GERE ENGINEERS,  INC.
ACTIVATED CARBON
CHEMICAL PRECIPITATION
STABILIZATION/SOLIDIFICATION
STABILIZATION/SOLIDIFICATION
STABILIZATION/SOLIDIFICATION
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
BIODEGRADATION-COMPOSTING
BIODEGRADATION-SLURRY PHASE
BIODEGRADATION-SOLID PHASE
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
COAGULATION/FLOCCULATI ON
CRYSTALLIZATION
OEWATERING
FILTRATION
INCINERATION
ION  EXCHANGE
LIQUID-LIQUID  EXTRACTION
NEUTRALIZATION
OZONATION
PACT
REVERSE  OSMOSIS
SOLVENT  RECOVERY
STABILIZATION
STABILIZATION/SOLIDIFICATION
STRIPPING
THERMAL  COMBUSTION
UV/OXIDATION
VITRIFICATION
WET  AIR  OXIDATION
WET  AIR  OXIDATION
ACTIVATED  CARBON
BIODEGRADATION-NOS
 INCINERATION
MOLECULAR  BEAM MASS  SPEC
ACTIVATED  CARBON
ACTIVATED  SLUDGE
AEROBIC  BIOLOGICAL
ANAEROBIC  BIOLOGICAL
BIODEGRADATION-NOS
CHEMICAL OXIDATION
 CHLORINATION
 IN SITU  BIODEGRADATION
 IN SITU  SOIL  FLUSHING
OZONATION
                                                 IV-  36

-------
CONTAMINANT GROUP
                                TABLE # 4 (CONTINUED)

                                   COMPANY NAME
TREATMENT TECHNOLOGY
NONHALOGENATED NONVOLATILES
                                   O'BRIEN AND GERE ENGINEERS, INC.
                                   O'BRIEN AND GERE ENGINEERS, INC.
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   PETROLEUM  TESTING  SERVICE,  INC.
                                   PYROGENICS,  INC.
                                   PYROGENICS,  INC.
                                   PYROGENICS,  INC.
                                   OUALTEC,  INC.
                                   OUALTEC,  INC.
                                   OUALTEC,  INC.
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                    REMEDIATION TECHNOLOGIES
                                    REMEDIATION TECHNOLOGIES
                                    REMEDIATION TECHNOLOGIES
SOLVENT RECOVERY
STRIPPING
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
BIOOEGRADATION-NOS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
CRYSTALLIZATION
DEWATERING
IN SITU BIODEGRADATION
IN SITU BIODEGRADATION
IN SITU SOIL  FLUSHING
IN SITU VACUUM & STEAM  EXTRACT
INCINERATION
ION  EXCHANGE
LOU  TEMP THERMAL STRIPPING
NEUTRALIZATION
OIL-WATER SEPARATION
SOIL WASHING
SOLVENT RECOVERY
STABILIZATION/SOLIDIFICATION
STRIPPING
THERMAL COMBUSTION
IN SITU VACUUM & STEAM  EXTRACT
DEWATERING
THERMAL DESTRUCTION
VITRIFICATION
CHEMICAL PRECIPITATION
ION  EXCHANGE
STABILIZATION/SOLIDIFICATION
ACTIVATED CARBON
ACTIVATED SLUDGE
ANAEROBIC BIOLOGICAL
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHLORINATION
ELECTRODIALYSIS
 ION  EXCHANGE
OZONATION
REVERSE  OSMOSIS
STABILIZATION/SOLIDIFICATION
STRIPPING
ACTIVATED  CARBON
ANAEROBIC  BIOLOGICAL
BIODEGRADATION-SOLID  PHASE
                                                 IV- 37

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
NONHALOGENATED NONVOLATILES
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGIES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RMC ENV & ANALYTICAL LABORATORIES
                                   RMC ENV & ANALYTICAL LABORATORIES
                                   RMC ENV & ANALYTICAL LABORATORIES
                                   RMC ENV & ANALYTICAL LABORATORIES
                                   RMC ENV & ANALYTICAL LABORATORIES
                                   RMC ENV & ANALYTICAL LABORATORIES
                                   RMC ENV & ANALYTICAL LABORATORIES
                                   ROY F. UESTON,  INC.
                                   ROY f. UESTON,  INC.
                                   ROY F. WESTON,  INC.
                                   ROY F. UESTON,  INC.
                                   ROY F. UESTON,  INC.
                                   ROY F. UESTON,  INC.
                                   ROY F. UESTON,  INC.
                                   ROY F. UESTON,  INC.
                                   ROY F. UESTON,  INC.
                                   ROY F. UESTON,  INC.
                                   ROY F. UESTON,  INC.
                                   ROY F. UESTON,  INC.
                                   ROY F. UESTON,  INC.
                                   ROY F. UESTON,  INC.
                                   ROY F. UESTON,  INC.
                                   ROY F. UESTON,  INC.
                                   ROY F. UESTON,  INC.
                                   ROY F. UESTON,  INC.
                                   ROY F. UESTON,  INC.
                                   ROY F. UESTON,  INC.
                                   ROY F. UESTON,  INC.
                                   ROY F. UESTON,  INC.
                                   ROY F. UESTON,  INC.
                                   ROY F. UESTON,  INC.
                                   ROY F. UESTON,  INC.
                                   ROY F. UESTON,  INC.
                                   ROY F. UESTON,  INC.
CHEMICAL EXTRACTION
IN SITU BIODEGRADATION
IN SITU VACUUM & STEAM EXTRACT
SOIL UASHING
STABILIZATION/SOLIDIFICATION
STRIPPING
ACTIVATED CARBON
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CRYSTALLIZATION
ELECTROOIALYSIS
NEUTRALIZATION
NEUTRALIZATION
OZONATION
REVERSE OSMOSIS
CHEMICAL EXTRACTION
CHEMICAL TREATMENT
IN SITU VACUUM & STEAM EXTRACT
IN SITU VITRIFICATION
INCINERATION
SOIL UASHING
STABILIZATION/SOLIDIFICATION
ACTIVATED CARBON
ACTIVATED SLUDGE
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
BIOOEGRADATION-COMPOST ING
BIODEGRADATION-SLURRY PHASE
BIOOEGRADATION-SOLID PHASE
CENTRIFUGATION
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
COAGULATION/F LOCCUL AT I ON
FILTRATION
FILTRATION
FLOTATION THICKENING
GRAVITY  THICKENING
IN  SITU  BIODEGRADATION
IN  SITU  RADIO FREQUENCY  HEATIN
IN  SITU  SOIL  FLUSHING
IN  SITU  VACUUM  & STEAM  EXTRACT
INCINERATION
ION  EXCHANGE
LOU TEMP THERMAL STRIPPING
NEUTRALIZATION
                                                 IV-  38

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
NONHALOGENATED NONVOLATILES
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   SOUTHERN RESEARCH  INSTITUTE
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   THORNE ENVIRONMENTAL,  INC.
                                   THORNE ENVIRONMENTAL,  INC.
                                   THORNE ENVIRONMENTAL,  INC.
                                   THORNE ENVIRONMENTAL,  INC.
                                   THORNE ENVIRONMENTAL,  INC.
                                   TREATEK,  INC.
                                   TREATEK,  INC.
                                   TREATEK,  INC.
                                   TREATEK,  INC.
                                   TREATEK,  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   UESTERN RESEARCH INSTITUTE
                                   WESTERN RESEARCH INSTITUTE
                                   UESTERN RESEARCH INSTITUTE
                                    UESTERN RESEARCH INSTITUTE
                                    UESTERN RESEARCH INSTITUTE
                                    UESTERN RESEARCH INSTITUTE
                                    UESTERN RESEARCH INSTITUTE
                                    UESTERN RESEARCH INSTITUTE
                                    UESTERN RESEARCH INSTITUTE
                                    UESTERN RESEARCH INSTITUTE
                                    UESTERN RESEARCH INSTITUTE
                                    UESTERN RESEARCH INSTITUTE
                                    UESTERN RESEARCH INSTITUTE
OZONATION
SEDIMENTATION
SOIL UASHING
STABILIZATION/SOLIDIFICATION
STRIPPING
IN SITU BIOOEGRADATION
ACTIVATED SLUDGE
AEROBIC BIOLOGICAL
BIODEGRADATION-SLURRY PHASE
BIODEGRADATION-SOLID PHASE
IN SITU BIOOEGRADATION
IN SITU SOIL FLUSHING
IN SITU VACUUM & STEAM EXTRACT
ION EXCHANGE
BIODEGRADATION-SLURRY PHASE
BIODEGRADATION-SOLID PHASE
IN SITU BIOOEGRADATION
IN SITU SOIL FLUSHING
UV/DEEP TREATMENT
ADSORPTION
AEROBIC BIOLOGICAL
CHEMICAL  PRECIPITATION
SOIL UASHING
STRIPPING
ACTIVATED SLUDGE
ADSORPTION
ANAEROBIC BIOLOGICAL
CHEMICAL  EXTRACTION
CHEMICAL  EXTRACTION
CHEMICAL  OXIDATION
CHEMICAL  PRECIPITATION
 ION  EXCHANGE
LIQUID-LIQUID  EXTRACTION
NEUTRALIZATION
PACT
REVERSE OSMOSIS
STABILIZATION/SOLIDIFICATION
STRIPPING
VITRIFICATION
UET  AIR OXIDATION
ACTIVATED CARBON
AEROBIC  BIOLOGICAL
ANAEROBIC BIOLOGICAL
 BIODEGRADATION-SLURRY  PHASE
 CHEMICAL  PRECIPITATION
 CHEMICAL  REDUCTION
 CHLORINATION
 COAGULATION/FLOCCULATI ON
 DEUATERING
 ELECTROCOAGULATION
 FLOTATION
 IN SITU BIOOEGRADATION
 INCINERATION
                                                 IV- 39

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
NONHALOGENATED NONVOLATILES
                                   WESTERN RESEARCH INSTITUTE
                                   WESTERN RESEARCH INSTITUTE
                                   WESTERN RESEARCH INSTITUTE
                                   WESTERN RESEARCH INSTITUTE
                                   WESTERN RESEARCH INSTITUTE
                                   WESTERN RESEARCH INSTITUTE
                                   WESTERN RESEARCH INSTITUTE
                                   WESTERN RESEARCH INSTITUTE
                                   WESTERN RESEARCH INSTITUTE
                                   WESTERN RESEARCH INSTITUTE
                                   WESTERN RESEARCH INSTITUTE
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
ION EXCHANGE
LIQUID-LIQUID EXTRACTION
LIQUID-SOLID SEPARATION
NEUTRALIZATION
OZONATION
REVERSE OSMOSIS
SOIL WASHING
SPRAY DRYING
STABILIZATION/SOLIDIFICATION
STRIPPING
WET AIR OXIDATION
ACTIVATED CARBON
ACTIVATED SLUDGE
BIODEGRADATION-NOS
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
REVERSE OSMOSIS
STABILIZATION/SOLIDIFICATION
NONHALOGENATED VOLATILES
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   BIOSCIENCE  MANAGEMENT,  INC.
                                   BIOSCIENCE  MANAGEMENT,  INC.
                                   BIOSCIENCE  MANAGEMENT,  INC.
                                   BIOSCIENCE  MANAGEMENT,  INC.
                                   BIOSCIENCE  MANAGEMENT,  INC.
                                   BIOSCIENCE  MANAGEMENT,  INC.
                                   BIOSCIENCE  MANAGEMENT,  INC.
                                   BIOTROL,  INC.
                                   BIOTROL,  INC.
                                   CAA BIOREMEDIATION  SYSTEMS
                                   CAA BIOREMEDIATION  SYSTEMS
ACTIVATED CARBON
ADSORPTION
CATALYSIS
CENTRIFUGATION
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CRYSTALLIZATION
FILTRATION
IN SITU VACUUM & STEAM EXTRACT
INCINERATION
INCINERATION
LIQUID-LIQUID EXTRACTION
LOW  TEMP THERMAL STRIPPING
NEUTRALIZATION
SOLVENT RECOVERY
STABILIZATION/SOLIDIFICATION
STRIPPING
THERMAL PROCESSING
WET  AIR OXIDATION
WET  AIR OXIDATION
AEROBIC BIOLOGICAL
BIODEGRADATION-COMPOST ING
BIODEGRADATION-SLURRY PHASE
BIODEGRADATION-SOLID PHASE
IN SITU BIODEGRADATI ON
NEUTRALIZATION
STRIPPING
BIODEGRADATION-SLURRY PHASE
SOIL WASHING
ACTIVATED CARBON
ACTIVATED SLUDGE
                                                 IV-  40

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
NONHALOGENATED VOLATILES
                                   CAA BIOREMEOIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAMBRIDGE SCIENTIFIC, INC.
                                   COMBUSTION ENGINEERING, INC.
                                   COMBUSTION ENGINEERING, INC.
                                   COMBUSTION ENGINEERING, INC.
                                   COMBUSTION ENGINEERING, INC.
                                   CYTO CULTURE ENVIRON. BIOTECH.
                                   CYTO CULTURE ENVIRON. BIOTECH.
                                   CYTO CULTURE ENVIRON. BIOTECH.
                                   CYTO CULTURE ENVIRON. BIOTECH.
                                   CYTO CULTURE ENVIRON. BIOTECH.
                                   CYTO CULTURE ENVIRON. BIOTECH.
                                   D D ENVIRONMENTAL
                                   D D ENVIRONMENTAL
                                   D D ENVIRONMENTAL
                                   D D ENVIRONMENTAL
                                   D D ENVIRONMENTAL
                                   D D ENVIRONMENTAL
                                   D D ENVIRONMENTAL
                                   D D ENVIRONMENTAL
                                   D D ENVIRONMENTAL
                                   D D ENVIRONMENTAL
                                   D D ENVIRONMENTAL
                                   D D ENVIRONMENTAL
                                   D D ENVIRONMENTAL
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                             ADSORPTION
                                             AEROBIC BIOLOGICAL
                                             BIOOEGRADATION-SOLID PHASE
                                             CHEMICAL EXTRACTION
                                             IN SITU BIODEGRADATION
                                             IN SITU SOIL FLUSHING
                                             IN SITU VACUUM & STEAM EXTRACT
                                             LIQUID-LIQUID EXTRACTION
                                             LOW TEMP THERMAL STRIPPING
                                             NEUTRALIZATION
                                             NEUTRALIZATION
                                             SOIL WASHING
                                             STRIPPING
                                             SOLVENT RECOVERY
                                             BIODEGRADATION-NOS
                                             IN SITU BIODEGRADATION
                                             STRIPPING
                                             UV/OXIDATION
                                             AEROBIC BIOLOGICAL
                                             BIOOEGRADATION-COMPOSTING
                                             BIODEGRADATION-NOS
                                             BIOOEGRADATION-SOLID PHASE
                                             IN SITU SOIL FLUSHING
                                             SOIL WASHING
                                             ACTIVATED SLUDGE
                                             ADSORPTION
                                             AEROBIC BIOLOGICAL
                                             ANAEROBIC BIOLOGICAL
                                             BICOEGRADATION-SLURRY  PHASE
                                             BIODEGRADATION-SOLID PHASE
                                             CHEMICAL EXTRACTION
                                             CHEMICAL TREATMENT
                                             IN SITU BIODEGRADATION
                                             IN SITU SOIL FLUSHING
                                             IN SITU VACUUM  &  STEAM EXTRACT
                                             ION  EXCHANGE
                                             SOIL WASHING
                                             ACTIVATED CARBON
                                             ACTIVATED SLUDGE
                                             ADSORPTION
                                             ANAEROBIC BIOLOGICAL
                                             BIOOEGRADATION-COMPOSTING
                                             BICOEGRADATION-SLURRY  PHASE
                                             BIODEGRADATION-SOLID  PHASE
                                             CHEMICAL  EXTRACTION
                                             CHEMICAL  OXIDATION
                                             CHEMICAL  PRECIPITATION
                                             CHEMICAL  REDUCTION
                                             CHEMICAL  TREATMENT
                                             CHLORINATION
                                              IN  SITU  BIODEGRADATION
                                              IN  SITU  SOIL  FLUSHING
                                              IN  SITU  VACUUM  &  STEAM EXTRACT
                                                 IV- 41

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT  TECHNOLOGY
NONHALOGENATED VOLATILES
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   ENERGY&ENVIRONMENTAL RESEARCH CORP.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENVIRONMENTAL REMEDIATION, INC.
                                   ENVIRONMENTAL REMEDIATION, INC.
                                   ENVIRONMENTAL REMEDIATION, INC.
                                   ENVIRONMENTAL REMEDIATION, INC.
                                   ENVIRONMENTAL REMEDIATION, INC.
                                   ENVIRONMENTAL REMEDIATION, INC.
                                   ENVIRONMENTAL REMEDIATION, INC.
                                   ENVIRONMENTAL REMEDIATION, INC.
                                   ENVIRONMENTAL RESOURCE ASSOCIATES
                                   ENVIRONMENTAL RESOURCE ASSOCIATES
                                   ENVIRONMENTAL RESOURCE ASSOCIATES
                                   ENVIRONMENTAL RESOURCE ASSOCIATES
                                   ENVIRONMENTAL RESOURCE ASSOCIATES
                                   ENVIRONMENTAL RESOURCE ASSOCIATES
                                   ENVIRONMENTAL RESOURCE ASSOCIATES
                                   ENVIRONMENTAL RESOURCE ASSOCIATES
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
IN SITU VITRIFICATION
OZONATION
SOIL WASHING
SOLVENT RECOVERY
STRIPPING
INCINERATION
ACTIVATED SLUDGE
ADSORPTION
BIODEGRADATION-NOS
BIODEGRADATION-NOS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
FILTRATION
IN SITU BIODEGRADATION
IN SITU SOIL FLUSHING
IN SITU VACUUM & STEAM EXTRACT
INCINERATION
ION EXCHANGE
LOW TEMP THERMAL STRIPPING
NEUTRALIZATION
SOIL WASHING
STABILIZATION/SOLIDIFICATION
STABILIZATION/SOLIDIFICATION
STRIPPING
VITRIFICATION
ACTIVATED SLUDGE
AEROBIC BIOLOGICAL
BIOOEGRADAT ION-COMPOST ING
BIODEGRADATION-SLURRY  PHASE
BIODEGRADATION-SOLID PHASE
CHEMICAL TREATMENT
IN SITU BIODEGRADATION
SOIL WASHING
ACTIVATED CARBON
ACTIVATED SLUDGE
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
ION EXCHANGE
NEUTRALIZATION
STRIPPING
ACTIVATED CARBON
ACTIVATED SLUDGE
AEROBIC BIOLOGICAL
B1ODEGRADATION- COMPOST ING
BIODEGRADATION-SLURRY  PHASE
BIODEGRADATION-SOLID PHASE
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
                                                 IV-  42

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
NONHALOGENATED VOLATILES
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY SOUTHEAST
                                   ENVIROSAFE TECHNOLOGIES, INC.
                                   FREEZE TECHNOLOGIES CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   HUNTER BIOSCIENCES,  INC.
                                   HUNTER BIOSCIENCES,  INC.
                                   HUNTER BIOSCIENCES,  INC.
                                   HUNTER BIOSCIENCES,  INC.
                                   HUNTER BIOSCIENCES,  INC.
                                   HUNTER BIOSCIENCES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                    HUNTER SERVICES,  INC.
                                    HUNTER  SERVICES,  INC.
                                    HUNTER  SERVICES,  INC.
                                    HUNTER  SERVICES,  INC.
                                    HUNTER  SERVICES,  INC.
                                    HUNTER  SERVICES,  INC.
                                    HUNTER  SERVICES,  INC.
                                    HUNTER  SERVICES,  INC.
                                    HUNTER  SERVICES,  INC.
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
CHEMICAL REDUCTION
CHLORINATION
IN SITU BIODEGRADATION
IN SITU SOIL FLUSHING
IN SITU VACUUM & STEAM EXTRACT
INCINERATION
ION EXCHANGE
NEUTRALIZATION
SOIL WASHING
STRIPPING
IN SITU VACUUM & STEAM EXTRACT
FREEZE CRYSTALLIZATION
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
CHEMICAL OXIDATION
CHEMICAL REDUCTION
LIQUID-LIQUID EXTRACTION
OZONATION
STRIPPING
ACTIVATED CARBON
ACTIVATED SLUDGE
AEROBIC BIOLOGICAL
IN SITU SOIL FLUSHING
IN SITU VACUUM &  STEAM EXTRACT
STRIPPING
ACTIVATED SLUDGE
ADSORPTION
ADSORPTION
CHEMICAL OXIDATION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL PRECIPITATION
CHLORINATION
COAGULATION/FLOCCULATION
COAGULATION/FLOCCULATI ON
LOU  TEMP THERMAL  STRIPPING
NEUTRALIZATION
OZONATION
STABILIZATION/SOLIDIFICATION
STRIPPING
ACTIVATED  CARBON
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC  BIOLOGICAL
BIODEGRADATION-NOS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
                                                 IV- 43

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
NONHALOGENATED VOLATILES
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   IT CORPORATION
                                   IT CORPORATION
                                   IT CORPORATION
                                   IT CORPORATION
                                   IT CORPORATION
                                   IT CORPORATION
                                   IT CORPORATION
                                   IT CORPORATION
                                   JACOBS ENGINEERING GROUP, INC.
                                   JACOBS ENGINEERING GROUP, INC.
                                   JACOBS ENGINEERING GROUP, INC.
                                   JACOBS ENGINEERING GROUP, INC.
                                   KIBER ASSOCIATES, INC.
                                   KIBER ASSOCIATES, INC.
                                   KIBER ASSOCIATES, INC.
                                   KIBER ASSOCIATES, INC.
                                   KIBER ASSOCIATES, INC.
                                   KSE, INC.
                                   KSE, INC.
                                   KSE, INC.
                                   KSE, INC.
                                   KSE. INC.
                                   KSE, INC.
                                   KSE, INC.
                                   KSE, INC.
                                   KSE. INC.
                                   MAECORP,  INC.
                                   MAECORP,  INC.
                                   MARINE POLUTION  CONTROL
                                   MARINE POLUTION  CONTROL
                                   MARINE POLUTION  CONTROL
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
CHLORINATION
CRYSTALLIZATION
IN SITU BIODEGRADATION
INCINERATION
ION EXCHANGE
LIQUID-LIQUID EXTRACTION
OZONATION
SOIL WASHING
SOLVENT RECOVERY
STABILIZATION/SOLIDIFICATION
STRIPPING
WET AIR OXIDATION
ACTIVATED CARBON
CATALYSIS
CHEMICAL OXIDATION
LOU TEMP THERMAL STRIPPING
SOLVENT RECOVERY
STABILIZATION/SOLIDIFICATION
STRIPPING
WET AIR OXIDATION
ACTIVATED SLUDGE
AEROBIC BIOLOGICAL
CHEMICAL OXIDATION
LIQUID-LIQUID EXTRACTION
ACTIVATED CARBON
CHEMICAL PRECIPITATION
STABILIZATION/SOLIDIFICATION
STABILIZATION/SOLIDIFICATION
STABILIZATION/SOLIDIFICATION
ACTIVATED CARBON
ADSORPTION
CATALYSIS
CHEMICAL EXTRACTION
LOW TEMP THERMAL STRIPPING
REVERSE OSMOSIS
SOLVENT RECOVERY
STRIPPING
ULTRAFILTRATION
ADSORPTION
STRIPPING
FILTRATION
NEUTRALIZATION
STABILIZATION/SOLIDIFICATION
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
BIOOEGRADATION-COMPOST ING
BIODEGRADATION-SLURRY PHASE
81OOEGRADATION-SOLID PHASE
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
                                                 IV-  44

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
NONHALOGENATED VOLATILES
                                   HCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MEMBRANE  TECHNOLOGY  &  RESEARCH,  INC
                                   MEMBRANE  TECHNOLOGY  &  RESEARCH,  INC
                                   MIDWEST RESEARCH  INSTITUTE
                                   MIDWEST RESEARCH  INSTITUTE
                                   MIDWEST RESEARCH  INSTITUTE
                                   MIDWEST RESEARCH  INSTITUTE
                                   O'BRIEN AND GERE ENGINEERS,  INC.
                                   O'BRIEN AND GERE ENGINEERS,  INC.
                                   O'BRIEN AND GERE ENGINEERS,  INC.
                                   O'BRIEN AND GERE ENGINEERS,  INC.
                                   O'BRIEN AND GERE ENGINEERS,  INC.
                                   O'BRIEN AND GERE ENGINEERS,  INC.
                                   O'BRIEN AND GERE  ENGINEERS,  INC.
                                   O'BRIEN AND GERE  ENGINEERS,  INC.
                                   O'BRIEN AND GERE  ENGINEERS,  INC.
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                    OHM CORPORATION
                                    OHM CORPORATION
                                    OHM CORPORATION
                                    OHM CORPORATION
                                    OHM CORPORATION
                                    OHM CORPORATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
COAGULATION/FLOCCULATION
CRYSTALLIZATION
DEWATERING
FILTRATION
INCINERATION
ION EXCHANGE
LIQUID-LIQUID EXTRACTION
NEUTRALIZATION
OZONATION
PACT
REVERSE OSMOSIS
SOLVENT RECOVERY
STABILIZATION
STABILIZATION/SOLIDIFICATION
STRIPPING
THERMAL COMBUSTION
UV/OXIDATION
VITRIFICATION
WET AIR OXIDATION
WET AIR OXIDATION
PERVAPORATION
VAPOR  SEPARATION
ACTIVATED  CARBON
BIOOEGRADATION-NOS
INCINERATION
MOLECULAR  BEAM MASS  SPEC
ACTIVATED  CARBON
ACTIVATED  SLUDGE
ADSORPTION
AEROBIC BIOLOGICAL
BIOOEGRADATION-NOS
IN  SITU SOIL  FLUSHING
IN  SITU VACUUM &  STEAM EXTRACT
SOLVENT RECOVERY
STRIPPING
ACTIVATED  CARBON
ACTIVATED  SLUDGE
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC  BIOLOGICAL
BIOOEGRADATION-NOS
CHEMICAL  EXTRACTION
CHEMICAL  OXIDATION
CHEMICAL  PRECIPITATION
CHEMICAL  REDUCTION
CHEMICAL  TREATMENT
CHLORINATION
CRYSTALLIZATION
DEWATERING
                                                 IV- 45

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
NONHALOGENATED VOLATILES
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   PETROLEUM TESTING SERVICE, INC.
                                   PROCEDYNE CORPORATION
                                   QUALTEC, INC.
                                   QUALTEC, INC.
                                   QUALTEC, INC.
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGIES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RMC  ENV  & ANALYTICAL  LABORATORIES
                                   RMC  ENV  & ANALYTICAL  LABORATORIES
                                             IN SITU BIODEGRADATION
                                             IN SITU BIODEGRADATION
                                             IN SITU SOIL FLUSHING
                                             IN SITU VACUUM & STEAM EXTRACT
                                             INCINERATION
                                             ION EXCHANGE
                                             LOU TEMP THERMAL STRIPPING
                                             NEUTRALIZATION
                                             OIL-WATER SEPARATION
                                             SOIL WASHING
                                             SOLVENT RECOVERY
                                             STABILIZATION/SOLIDIFICATION
                                             STRIPPING
                                             THERMAL COMBUSTION
                                             IN SITU VACUUM & STEAM EXTRACT
                                             PYROLYSIS
                                             CHEMICAL PRECIPITATION
                                             ION EXCHANGE
                                             STABILIZATION/SOLIDIFICATION
                                             ACTIVATED CARBON
                                             ACTIVATED SLUDGE
                                             ANAEROBIC BIOLOGICAL
                                             CHEMICAL EXTRACTION
                                             CHEMICAL OXIDATION
                                             CHEMICAL PRECIPITATION
                                             CHLORINATION
                                             ELECTRODIALYSIS
                                             INCINERATION
                                             ION EXCHANGE
                                             OZONATION
                                             REVERSE OSMOSIS
                                             STABILIZATION/SOLIDIFICATION
                                             STRIPPING
                                             ACTIVATED CARBON
                                             ANAEROBIC BIOLOGICAL
                                             BIODEGRADATION-SLURRY PHASE
                                             BIODEGRADATION-SOLID PHASE
                                             CHEMICAL EXTRACTION
                                             IN SITU BIOOEGRADATION
                                             IN SITU SOIL  FLUSHING
                                             IN SITU VACUUM &  STEAM  EXTRACT
                                             OZONATION
                                             SOIL WASHING
                                             STABILIZATION/SOLIDIFICATION
                                             STRIPPING
                                             THERMAL DESORPTION
                                             AEROBIC BIOLOGICAL
                                             ANAEROBIC BIOLOGICAL
                                             CHEMICAL OXIDATION
                                             CHEMICAL PRECIPITATION
                                             CHEMICAL REDUCTION
                                             CHEMICAL EXTRACTION
                                             CHEMICAL TREATMENT
                                                 IV- 46

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
NONHALOGENATED VOLATILES
                                   RMC ENV & ANALYTICAL LABORATORIES
                                   RMC ENV & ANALYTICAL LABORATORIES
                                   RMC ENV & ANALYTICAL LABORATORIES
                                   RMC ENV & ANALYTICAL LABORATORIES
                                   RMC ENV & ANALYTICAL LABORATORIES
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. \ESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   S-CUBED
                                   SY8RON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   THORNE ENVIRONMENTAL,  INC.
                                   THORNE ENVIRONMENTAL,  INC.
                                   THORNE ENVIRONMENTAL,  INC.
                                             IN SITU VACUUM & STEAM EXTRACT
                                             IN SITU VITRIFICATION
                                             INCINERATION
                                             SOIL UASHING
                                             STABILIZATION/SOLIDIFICATION
                                             ACTIVATED CARBON
                                             ACTIVATED SLUDGE
                                             AEROBIC BIOLOGICAL
                                             ANAEROBIC BIOLOGICAL
                                             BIODEGRADATION-COMPOST ING
                                             BIODEGRADATION-SLURRY PHASE
                                             BIODEGRADATION-SOLID PHASE
                                             CENTRIFUGATION
                                             CHEMICAL EXTRACTION
                                             CHEMICAL OXIDATION
                                             CHEMICAL PRECIPITATION
                                             CHEMICAL REDUCTION
                                             CHEMICAL TREATMENT
                                             CHLORINATION
                                             COAGULATION/FLOCCULATION
                                             FILTRATION
                                             FILTRATION
                                             FLOTATION THICKENING
                                             GRAVITY THICKENING
                                             IN SITU BIOOEGRADATION
                                             IN SITU RADIO FREQUENCY HEATIN
                                             IN SITU SOIL FLUSHING
                                             IN SITU VACUUM & STEAM EXTRACT
                                             INCINERATION
                                             ION  EXCHANGE
                                             LOU  TEMP THERMAL STRIPPING
                                             NEUTRALIZATION
                                             OZONATION
                                             PHYSICAL TREATMENTS
                                             SEDIMENTATION
                                             SOIL UASHING
                                             STABILIZATION/SOLIDIFICATION
                                             STRIPPING
                                             THERMAL TREATMENT-NOS
                                             LIQUID-LIQUID EXTRACTION
                                             ACTIVATED SLUDGE
                                             ADSORPTION
                                             AEROBIC BIOLOGICAL
                                             BIODEGRADATION-SLURRY  PHASE
                                             BIODEGRADATION-SOLID  PHASE
                                              IN  SITU BIOOEGRADATION
                                              IN  SITU SOIL  FLUSHING
                                              IN  SITU VACUUM &  STEAM  EXTRACT
                                              ION  EXCHANGE
                                             SOIL UASHING
                                             BIODEGRADATION-SLURRY  PHASE
                                             BIODEGRADATION-SOLID  PHASE
                                              IN  SITU BIOOEGRADATION
                                                 IV-  47

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
NONHALOGENATED VOLATILES
                                   THORNE ENVIRONMENTAL, INC.
                                   THORNE ENVIRONMENTAL, INC.
                                   THORNE ENVIRONMENTAL, INC.
                                   TREATEtC, INC.
                                   TREATEK, INC.
                                   TREATEK, INC.
                                   TREATEK, INC.
                                   TREATEK, INC.
                                   VAPEX
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   WESTERN  RESEARCH  INSTITUTE
                                   WESTERN  RESEARCH  INSTITUTE
                                   WESTERN  RESEARCH  INSTITUTE
                                   WESTERN  RESEARCH  INSTITUTE
                                   WESTERN  RESEARCH  INSTITUTE
                                   WESTERN  RESEARCH  INSTITUTE
                                   WESTERN  RESEARCH  INSTITUTE
                                   WESTERN  RESEARCH  INSTITUTE
                                   WESTERN  RESEARCH  INSTITUTE
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
IN SITU SOIL FLUSHING
UV/DEEP TREATMENT
VAPOR EXTRACTION
ADSORPTION
AEROBIC BIOLOGICAL
CHEMICAL PRECIPITATION
SOIL WASHING
STRIPPING
IN SITU VACUUM & STEAM EXTRACT
ACTIVATED SLUDGE
ADSORPTION
ANAEROBIC BIOLOGICAL
CHEMICAL EXTRACTION
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
INCINERATION
ION EXCHANGE
LIQUID-LIQUID EXTRACTION
NEUTRALIZATION
PACT
REVERSE OSMOSIS
STABILIZATION/SOLIDIFICATION
STRIPPING
VITRIFICATION
WET AIR OXIDATION
BIOOEGRADATION-SLURRY  PHASE
CHEMICAL OXIDATION
IN SITU BIOOEGRADATION
IN SITU SOIL FLUSHING
NEUTRALIZATION
REVERSE OSMOSIS
STABILIZATION/SOLIDIFICATION
STRIPPING
WET AIR OXIDATION
ACTIVATED CARBON
ACTIVATED SLUDGE
BIOOEGRADATION-NOS
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
REVERSE OSMOSIS
STABILIZATION/SOLIDIFICATION
 NONVOLATILE  METALS
                                    AAA CSI
                                    AAA CSI
                                    AAA CSI
                                    AAA CSI
                                    AAA CSI
                                    AAA CSI
                                    AAA CSI
                                    AAA CSI
                                    AAA CSI
                                    AAA CSI
 ACTIVATED  CARBON
 ADSORPTION
 CATALYSIS
 CENTRIFUGATION
 CHEMICAL EXTRACTION
 CHEMICAL OXIDATION
 CHEMICAL PRECIPITATION
 CHEMICAL REDUCTION
 CHEMICAL TREATMENT
 CRYSTALLIZATION
                                                 IV- 48

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
NONVOLATILE METALS
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   ANDCO ENVIRONMENTAL PROCESSES, INC.
                                   ANOCO ENVIRONMENTAL PROCESSES, INC.
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   AUC  INCORPORATED
                                   BIO-RECOVERY  SYSTEMS,  INC.
                                   BIOTROL,  INC.
                                   BIOTROL,  INC.
                                   D  D  ENVIRONMENTAL
                                   D  D  ENVIRONMENTAL
                                   D  D  ENVIRONMENTAL
                                   D  D  ENVIRONMENTAL
                                   D  D  ENVIRONMENTAL
                                   D  D  ENVIRONMENTAL
                                   D  D  ENVIRONMENTAL
                                   D  D  ENVIRONMENTAL
                                   D  D  ENVIRONMENTAL
                                   D  D  ENVIRONMENTAL
                                   D  D  ENVIRONMENTAL
                                             FILTRATION
                                             IN SITU VACUUM & STEAM EXTRACT
                                             INCINERATION
                                             INCINERATION
                                             LIQUID-LIQUID EXTRACTION
                                             LOW TEMP THERMAL STRIPPING
                                             NEUTRALIZATION
                                             SOLVENT RECOVERY
                                             STABILIZATION/SOLIDIFICATION
                                             STRIPPING
                                             THERMAL PROCESSING
                                             WET AIR OXIDATION
                                             WET AIR OXIDATION
                                             CHEMICAL PRECIPITATION
                                             ELECTROOIALYSIS
                                             ACTIVATED CARBON
                                             ADSORPTION
                                             CATALYSIS
                                             CHEMICAL EXTRACTION
                                             CHEMICAL OXIDATION
                                             CHEMICAL PRECIPITATION
                                             CHEMICAL TREATMENT
                                             CHLORINATION
                                             CRYSTALLIZATION
                                             ELECTROOIALYSIS
                                             ELECTROLYSIS
                                             FLUID-BED STRIPPING
                                             IN SITU SOIL  FLUSHING
                                             ION EXCHANGE
                                             LOW TEMP THERMAL  STRIPPING
                                             OZONATION
                                             REVERSE OSMOSIS
                                             SOIL  WASHING
                                             SOLIDIFICATION
                                             STABILIZATION
                                             STRIPPING
                                             THERMAL DECOMPOSITION
                                             ULTRAFILTRATION
                                             PHYSICAL SEPARATION
                                              ION EXCHANGE
                                             BIODEGRADATION-SLURRY  PHASE
                                             SOIL  WASHING
                                             ACTIVATED SLUDGE
                                             ADSORPTION
                                             AEROBIC BIOLOGICAL
                                             ANAEROBIC BIOLOGICAL
                                             BIODEGRADATION-SLURRY  PHASE
                                             BIODEGRADATION-SOLID PHASE
                                             CHEMICAL EXTRACTION
                                             CHEMICAL TREATMENT
                                              IN  SITU BIOOEGRADATION
                                              IN  SITU SOIL  FLUSHING
                                              IN  SITU VACUUM  &  STEAM EXTRACT
                                                 IV- 49

-------
                                TABLE # A (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT  TECHNOLOGY
NONVOLATILE METALS
                                   D D ENVIRONMENTAL
                                   0 D ENVIRONMENTAL
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DIVERSIFIED ENGINEERING, INC.
                                   DIVERSIFIED ENGINEERING, INC.
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E  M & C ENGINEERING ASSOCIATES
                                    E  M & C ENGINEERING ASSOCIATES
                                    E  M & C ENGINEERING ASSOCIATES
                                    ENERGY&ENVIRONMENTAL  RESEARCH CORP.
ION EXCHANGE
SOIL WASHING
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
ANAEROBIC BIOLOGICAL
BIODEGRADATION-COMPOST ING
BIOOEGRADATION-SLURRY PHASE
BIODEGRADATION-SOLID PHASE
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
IN SITU BIODEGRADATION
IN SITU SOIL  FLUSHING
IN SITU VACUUM & STEAM EXTRACT
IN SITU VITRIFICATION
OZONATION
SOIL WASHING
SOLVENT RECOVERY
STRIPPING
ACTIVATED SLUDGE
FILTRATION
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
81ODEGRADATION-NOS
CATALYSIS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
CRYSTALLIZATION
 IN  SITU SOIL  FLUSHING
 INCINERATION
 ION  EXCHANGE
LIQUID-LIQUID EXTRACTION
LOU TEMP THERMAL  STRIPPING
NEUTRALIZATION
OZONATION
REVERSE OSMOSIS
SOLVENT RECOVERY
STABILIZATION
 STRIPPING
VITRIFICATION
WET AIR OXIDATION
 INCINERATION
                                                 IV-  50

-------
CONTAMINANT GROUP
TABLE # 4 (CONTINUED)

   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
NONVOLATILE METALS
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENVIRONMENTAL RESOURCE ASSOCIATES
                                   ENVIRONMENTAL RESOURCE ASSOCIATES
                                   ENVIRONMENTAL RESOURCE ASSOCIATES
                                   ENVIRONMENTAL RESOURCE ASSOCIATES
                                   ENVIRONMENTAL RESOURCE ASSOCIATES
                                   ENVIRONMENTAL RESOURCE ASSOCIATES
                                   ENVIRONMENTAL RESOURCE ASSOCIATES
                                   ENVIRONMENTAL RESOURCE ASSOCIATES
                                   ENVIRONMENTAL RESOURCE ASSOCIATES
                                   ENVIRONMENTAL TECHNOLOGY  SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY  SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY  SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY  SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY  SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY  SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY  SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY  SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY  SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY  SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY  SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY  SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY  SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY  SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY  SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY  SOUTHEAST
                                   ENVIRONMENTAL TECHNOLOGY  SOUTHEAST
                                   ENVIROSAFE  TECHNOLOGIES,  INC.
                                    FRANCIS A.  MCLOUGHLIN,  INC.
                                    FREEZE TECHNOLOGIES CORPORATION
                                    GENERAL PHYSICS CORPORATION
                                                ACTIVATED SLUDGE
                                                ADSORPTION
                                                BIODEGRADATION-NOS
                                                BIOOEGRADATION-NOS
                                                CHEMICAL EXTRACTION
                                                CHEMICAL OXIDATION
                                                CHEMICAL PRECIPITATION
                                                CHEMICAL REDUCTION
                                                CHEMICAL TREATMENT
                                                CHLORINATION
                                                FILTRATION
                                                IN SITU BIODEGRADATION
                                                IN SITU SOIL FLUSHING
                                                IN SITU VACUUM & STEAM EXTRACT
                                                INCINERATION
                                                ION EXCHANGE
                                                LOW TEMP THERMAL STRIPPING
                                                NEUTRALIZATION
                                                SOIL WASHING
                                                STABILIZATION/SOLIDIFICATION
                                                STABILIZATION/SOLIDIFICATION
                                                STRIPPING
                                                VITRIFICATION
                                                ACTIVATED CARBON
                                                ACTIVATED SLUDGE
                                                AEROBIC BIOLOGICAL
                                                CHEMICAL OXIDATION
                                                CHEMICAL PRECIPITATION
                                                CHEMICAL REDUCTION
                                                ION EXCHANGE
                                                NEUTRALIZATION
                                                STRIPPING
                                                ACTIVATED CARBON
                                                ACTIVATED SLUDGE
                                                AEROBIC BIOLOGICAL
                                                BIODEGRADATION-COMPOSTING
                                                BIODEGRADATION-SLURRY  PHASE
                                                BIOOEGRADATION-SOLID PHASE
                                                CHEMICAL OXIDATION
                                                CHEMICAL PRECIPITATION
                                                CHEMICAL REDUCTION
                                                CHLORINATION
                                                IN SITU BIODEGRADATION
                                                IN SITU VACUUM  &  STEAM  EXTRACT
                                                INCINERATION
                                                ION EXCHANGE
                                                NEUTRALIZATION
                                                SOIL WASHING
                                                STRIPPING
                                                STABILIZATION
                                                NEUTRALIZATION
                                                FREEZE  CRYSTALLIZATION
                                                ACTIVATED CARBON
                                                 IV- 51

-------
                                TABLE tt 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
TREATMENT TECHNOLOGY
NONVOLATILE METALS
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.  .
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   INTERNATIONAL PROCESS  RESEARCH  CORP
                                   INTERNATIONAL PROCESS  RESEARCH  CORP
                                   INTERNATIONAL PROCESS  RESEARCH  CORP
                                   INTERNATIONAL PROCESS  RESEARCH  CORP
ACTIVATED SLUDGE
ADSORPTION
CATALYSIS
CHEMICAL PRECIPITATION
CHEMICAL TREATMENT
IN SITU BIODEGRADATION
ION EXCHANGE
NEUTRALIZATION
OZONATION
STABILIZATION/SOLIDIFICATION
STRIPPING
ACTIVATED SLUDGE
ADSORPTION
ADSORPTION
CHEMICAL OXIDATION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL PRECIPITATION
COAGULATION/FLOCCULATION
COAGULATION/FLOCCULATION
LOW TEMP THERMAL  STRIPPING
STABILIZATION/SOLIDIFICATION
STRIPPING
ACTIVATED CARBON
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
ADSORPTION
CATALYSIS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
CRYSTALLIZATION
FILTRATION
IN SITU  RADIO FREQUENCY HEATIN
IN SITU  SOIL  FLUSHING
IN SITU  VACUUM &  STEAM EXTRACT
ION EXCHANGE
ION EXCHANGE
LOW TEMP THERMAL  STRIPPING
OZONATION
SOIL  WASHING
SOLVENT  RECOVERY
STABILIZATION/SOLIDIFICATION
STRIPPING
UV/OZONATION
ACTIVATED CARBON
ADSORPTION
AEROBIC  BIOLOGICAL
ANAEROBIC BIOLOGICAL
                                                 IV-  52

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
NONVOLATILE METALS
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   IT CORPORATION
                                   IT CORPORATION
                                   IT CORPORATION
                                   IT CORPORATION
                                   IT CORPORATION
                                   IT CORPORATION
                                   IT CORPORATION
                                   IT CORPORATION
                                   IT CORPORATION
                                   IT CORPORATION
                                   IT CORPORATION
                                   IT CORPORATION
                                   JACOBS ENGINEERING GROUP,  INC.
                                   JACOBS ENGINEERING GROUP,  INC.
                                   JACOBS ENGINEERING GROUP,  INC.
                                   KIBER ASSOCIATES,  INC.
                                   KIBER ASSOCIATES,  INC.
                                   KIBER ASSOCIATES,  INC.
                                   KIBER ASSOCIATES,  INC.
                                   KIBER ASSOCIATES,  INC.
                                   KSE,  INC.
                                   KSE,  INC.
                                   KSE,  INC.
                                   KSE,  INC.
                                   KSE,  INC.
                                   KSE,  INC.
                                   KSE,  INC.
                                   KSE,  INC.
                                   KSE,  INC.
                                   MAECORP, INC.
                                   MAECORP, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                    MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                             BIODEGRADATION-NOS
                                             CHEMICAL EXTRACTION
                                             CHEMICAL OXIDATION
                                             CHEMICAL PRECIPITATION
                                             CHEMICAL REDUCTION
                                             CHEMICAL TREATMENT
                                             CHLORINATION
                                             CRYSTALLIZATION
                                             IN SITU BIODEGRADAT10N
                                             INCINERATION
                                             ION EXCHANGE
                                             LIQUID-LIQUID EXTRACTION
                                             NEUTRALIZATION
                                             OZONATION
                                             SOIL WASHING
                                             SOLVENT RECOVERY
                                             STABILIZATION/SOLIDIFICATION
                                             STRIPPING
                                             WET AIR OXIDATION
                                             ACTIVATED CARBON
                                             CATALYSIS
                                             CHEMICAL EXTRACTION
                                             CHEMICAL OXIDATION
                                             CHEMICAL PRECIPITATION
                                             CHEMICAL REDUCTION
                                             ION EXCHANGE
                                             LOW TEMP THERMAL STRIPPING
                                             REVERSE OSMOSIS
                                             SOIL WASHING
                                             STABILIZATION/SOLIDIFICATION
                                             VITRIFICATION
                                             CHEMICAL PRECIPITATION
                                             PHYSICAL SEPARATION
                                             STABILIZATION/SOLIDIFICATION
                                             ACTIVATED CARBON
                                             CHEMICAL PRECIPITATION
                                             STABILIZATION/SOLIDIFICATION
                                             STABILIZATION/SOLIDIFICATION
                                             STABILIZATION/SOLIDIFICATION
                                             ACTIVATED CARBON
                                             ADSORPTION
                                             CATALYSIS
                                             CHEMICAL EXTRACTION
                                             LOW  TEMP THERMAL  STRIPPING
                                             REVERSE OSMOSIS
                                             SOLVENT RECOVERY
                                             STRIPPING
                                             ULTRAFILTRATION
                                             CHEMICAL EXTRACTION
                                             REVERSE OSMOSIS
                                             ACTIVATED CARBON
                                             ACTIVATED SLUDGE
                                             ADSORPTION
                                                 IV- 53

-------
CONTAMINANT GROUP
                                TABLE # 4 (CONTINUED)





                                   COMPANY NAME
TREATMENT TECHNOLOGY
NONVOLATILE METALS
MCNAMEE ADVANCED TECHNOLOGY, INC.
MCNAMEE ADVANCED TECHNOLOGY, INC.
MCNAMEE ADVANCED TECHNOLOGY, INC.
MCNAMEE ADVANCED TECHNOLOGY, INC.
MCNAMEE ADVANCED TECHNOLOGY, INC.
MCNAMEE ADVANCED TECHNOLOGY, INC.
MCNAMEE ADVANCED TECHNOLOGY, INC.
MCNAMEE ADVANCED TECHNOLOGY, INC.
MCNAMEE ADVANCED TECHNOLOGY, INC.
MCNAMEE ADVANCED TECHNOLOGY, INC.
MCNAMEE ADVANCED TECHNOLOGY, INC.
MCNAMEE ADVANCED TECHNOLOGY, INC.
MCNAMEE ADVANCED TECHNOLOGY, INC.
MCNAMEE ADVANCED TECHNOLOGY, INC.
MCNAMEE ADVANCED TECHNOLOGY, INC.
MCNAMEE ADVANCED TECHNOLOGY, INC.
MCNAMEE ADVANCED TECHNOLOGY, INC.
MCNAMEE ADVANCED TECHNOLOGY, INC.
MCNAMEE ADVANCED TECHNOLOGY, INC.
MCNAMEE ADVANCED TECHNOLOGY, INC.
MCNAMEE ADVANCED TECHNOLOGY, INC.
MCNAMEE ADVANCED TECHNOLOGY, INC.
MCNAMEE ADVANCED TECHNOLOGY, INC.
MCNAMEE ADVANCED TECHNOLOGY, INC.
MCNAMEE ADVANCED TECHNOLOGY, INC.
MCNAMEE ADVANCED TECHNOLOGY, INC.
MCNAMEE ADVANCED TECHNOLOGY, INC.
MCNAMEE ADVANCED TECHNOLOGY, INC.
MCNAMEE ADVANCED TECHNOLOGY, INC.
MCNAMEE ADVANCED TECHNOLOGY, INC.
MCNAMEE ADVANCED TECHNOLOGY, INC.
O'BRIEN AND GERE ENGINEERS, INC.
O'BRIEN AND GERE ENGINEERS, INC.
O'BRIEN AND GERE ENGINEERS, INC.
O'BRIEN AND GERE ENGINEERS, INC.
O'BRIEN AND GERE ENGINEERS, INC.
OHM CORPORATION
OHM CORPORATION
OHM CORPORATION
OHM CORPORATION
OHM CORPORATION
OHM CORPORATION
OHM CORPORATION
OHM CORPORATION
OHM CORPORATION
OHM CORPORATION
OHM CORPORATION
OHM CORPORATION
OHM CORPORATION
OHM CORPORATION
OHM CORPORATION
OHM CORPORATION
OHM CORPORATION

AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
B10DEGRADAT I ON -COMPOST ING
BIODEGRADATION-SLURRY PHASE
BIODEGRADATION-SOLID PHASE
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
COAGULAT I ON/FLOCCULAT I ON
CRYSTALLIZATION
DEWATERING
FILTRATION
INCINERATION
ION EXCHANGE
LIQUID-LIQUID EXTRACTION
NEUTRALIZATION
OZONATION
PACT
REVERSE OSMOSIS
SOLVENT RECOVERY
STABILIZATION
STABILIZATION/SOLIDIFICATION
STRIPPING
THERMAL COMBUSTION
UV/OXIDATION
VITRIFICATION
WET AIR OXIDATION
WET AIR OXIDATION
ELECTRODIALYSIS
ION EXCHANGE
NEUTRALIZATION
SOIL WASHING
STABILIZATION/SOLIDIFICATION
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
BIODEGRADATION-NOS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
CRYSTALLIZATION
DEWATERING
IN SITU BIODEGRADATION
IN SITU BIODEGRADATION
IN SITU SOIL FLUSHING
                                                 IV- 54

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
TREATMENT TECHNOLOGY
NONVOLATILE METALS
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   PETROLEUM TESTING SERVICE, INC.
                                   PITTSBURGH MIN&ENV.TECH., INC.
                                   PITTSBURGH MIN&ENV.TECH., INC.
                                   PITTSBURGH MIN&ENV.TECH., INC.
                                   PITTSBURGH MIN&ENV.TECH., INC.
                                   PYROGENICS,  INC.
                                   PYROGENICS,  INC.
                                   PYROGENICS,  INC.
                                   PYROGENICS,  INC.
                                   OUALTEC,  INC.
                                   QUALTEC,  INC.
                                   QUALTEC,  INC.
                                   RADIAN  CORPORATION
                                   RADIAN  CORPORATION
                                   RADIAN  CORPORATION
                                   RADIAN  CORPORATION
                                   RADIAN  CORPORATION
                                   RADIAN  CORPORATION
                                   RADIAN  CORPORATION
                                   RADIAN  CORPORATION
                                   RADIAN  CORPORATION
                                   RADIAN  CORPORATION
                                   RADIAN  CORPORATION
                                   REMEDIATION  TECHNOLOGIES
                                   REMEDIATION  TECHNOLOGIES
                                   REMEDIATION  TECHNOLOGIES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                    RMC ENV & ANALYTICAL LABORATORIES
                                    RMC ENV & ANALYTICAL LABORATORIES
                                    RMC ENV & ANALYTICAL LABORATORIES
                                    RMC ENV & ANALYTICAL LABORATORIES
                                    RMC ENV & ANALYTICAL LABORATORIES
                                    RMC ENV & ANALYTICAL LABORATORIES
IN SITU VACUUM & STEAM EXTRACT
INCINERATION
ION EXCHANGE
LOU TEMP THERMAL STRIPPING
NEUTRALIZATION
OIL-WATER SEPARATION
SOIL WASHING
SOLVENT RECOVERY
STABILIZATION/SOLIDIFICATION
STRIPPING
THERMAL COMBUSTION
IN SITU VACUUM & STEAM EXTRACT
CHEMICAL EXTRACTION
CHEMICAL PRECIPITATION
PHYSICAL SEPARATION
SOIL WASHING
DEWATERING
STABILIZATION/SOLIDIFICATION
THERMAL DESTRUCTION
VITRIFICATION
CHEMICAL PRECIPITATION
ION EXCHANGE
STABILIZATION/SOLIDIFICATION
ACTIVATED CARBON
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHLORINATION
ELECTROOIALYSIS
ION EXCHANGE
OZONATION
REVERSE OSMOSIS
STABILIZATION/SOLIDIFICATION
STRIPPING
CHEMICAL EXTRACTION
 IN SITU BIOOEGRADATION
SOIL  WASHING
ACTIVATED CARBON
ADSORPTION
CHLORINATION
CRYSTALLIZATION
ELECTROOIALYSIS
 ION EXCHANGE
NEUTRALIZATION
NEUTRALIZATION
OZONATION
STRIPPING
 CHEMICAL  EXTRACTION
 CHEMICAL  TREATMENT
 IN SITU VACUUM & STEAM EXTRACT
 IN SITU VITRIFICATION
 INCINERATION
 SOIL WASHING
                                                 IV- 55

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
NONVOLATILE METALS
                                   RMC ENV & ANALYTICAL LABORATORIES
                                   ROY F. UESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   THORNE ENVIRONMENTAL,  INC.
                                   TREATEK,  INC.
                                   TREATEK,  INC.
                                   TREATEK,  INC.
                                   TREATEK,  INC.
                                   TREATEK,  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
STABILIZATION/SOLIDIFICATION
ACTIVATED CARBON
CENTRIFUGATION
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
COAGULATION/FLOCCULATION
FILTRATION
FILTRATION
FLOTATION THICKENING
GRAVITY THICKENING
IN SITU RADIO FREQUENCY HEATIN
IN SITU SOIL FLUSHING
INCINERATION
ION EXCHANGE
LOW TEMP THERMAL STRIPPING
NEUTRALIZATION
OZONATION
PHYSICAL TREATMENTS
SEDIMENTATION
SOIL WASHING
STABILIZATION/SOLIDIFICATION
STRIPPING
THERMAL TREATMENT-NOS
ACTIVATED SLUDGE
ADSORPTION
AEROBIC BIOLOGICAL
BIOOEGRADATION-SLURRY  PHASE
BIODEGRADATION-SOLID PHASE
IN SITU BIODEGRADATION
IN SITU SOIL FLUSHING
IN SITU VACUUM  & STEAM EXTRACT
ION EXCHANGE
SOIL WASHING
STABILIZATION/SOLIDIFICATION
ADSORPTION
AEROBIC BIOLOGICAL
CHEMICAL PRECIPITATION
SOIL WASHING
STRIPPING
ACTIVATED SLUDGE
ADSORPTION
CHEMICAL EXTRACTION
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
ION EXCHANGE
LIQUID-LIQUID EXTRACTION
NEUTRALIZATION
PACT
REVERSE OSMOSIS
                                                 IV-  56

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
COMPANY NAME
TREATMENT TECHNOLOGY
NONVOLATILE METALS
ORGANIC CORROSIVES
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   WESTERN RESEARCH INSTITUTE
                                   WESTERN RESEARCH INSTITUTE
                                   WESTERN RESEARCH INSTITUTE
                                   WESTERN RESEARCH INSTITUTE
                                   WESTERN RESEARCH INSTITUTE
                                   WESTERN RESEARCH INSTITUTE
                                   WESTERN RESEARCH INSTITUTE
                                   WESTERN RESEARCH INSTITUTE
                                   WESTERN RESEARCH INSTITUTE
                                   WESTERN RESEARCH INSTITUTE
                                   WESTERN RESEARCH INSTITUTE
                                   WESTERN RESEARCH INSTITUTE
                                   WESTERN RESEARCH INSTITUTE
                                   WESTERN RESEARCH INSTITUTE
                                   WESTERN RESEARCH INSTITUTE
                                   WESTINGHOUSE SCIENCE & TECHNOLOGY
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
BIOSCIENCE
BIOSCIENCE
BIOSCIENCE
BIOSCIENCE
BIOSCIENCE
BIOSCIENCE
BIOSCIENCE
                                               MANAGEMENT,  INC.
                                               MANAGEMENT,  INC.
                                               MANAGEMENT,  INC.
                                               MANAGEMENT,  INC.
                                               MANAGEMENT,  INC.
                                               MANAGEMENT,  INC.
                                               MANAGEMENT,  INC.
STABILIZATION/SOLIDIFICATION
STRIPPING
VITRIFICATION
WET AIR OXIDATION
ACTIVATED CARBON
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
BIOOEGRADATION-SOLID PHASE
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
DEWATERING
ELECTROCOAGULAT10N
ION EXCHANGE
LIQUID-SOLID SEPARATION
NEUTRALIZATION
REVERSE OSMOSIS
SOIL WASHING
STRIPPING
SOIL WASHING
BIOOEGRADATION-NOS
STABILIZATION/SOLIDIFICATION

ACTIVATED CARBON
ADSORPTION
CATALYSIS
CENTRIFUGATION
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CRYSTALLIZATION
FILTRATION
IN  SITU VACUUM &  STEAM  EXTRACT
INCINERATION
INCINERATION
LIQUID-LIQUID EXTRACTION
LOW TEMP THERMAL  STRIPPING
NEUTRALIZATION
SOLVENT RECOVERY
STABILIZATION/SOLIDIFICATION
STRIPPING
THERMAL PROCESSING
WET AIR OXIDATION
WET AIR OXIDATION
AEROBIC BIOLOGICAL
BIODEGRADATION-COMPOST ING
BIODEGRADATION-SLURRY  PHASE
BIOOEGRADATION-SOLID PHASE
 IN  SITU BIOOEGRADATION
NEUTRALIZATION
STRIPPING
                                                 IV- 57

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
COMPANY NAME
TREATMENT TECHNOLOGY
ORGANIC CORROSIVES
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   DETOX,  INC.
                                   FREEZE TECHNOLOGIES CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                             ACTIVATED CARBON
                                             ACTIVATED SLUDGE
                                             ADSORPTION
                                             ANAEROBIC BIOLOGICAL
                                             BIODEGRADATION-COMPOSTING
                                             BIODEGRADATION-SLURRY PHASE
                                             BIODEGRADATION-SOLID PHASE
                                             CHEMICAL EXTRACTION
                                             CHEMICAL OXIDATION
                                             CHEMICAL PRECIPITATION
                                             CHEMICAL REDUCTION
                                             CHEMICAL TREATMENT
                                             CHLORINATION
                                             IN SITU BIODEGRADATI ON
                                             IN SITU SOIL FLUSHING
                                             IN SITU VACUUM & STEAM EXTRACT
                                             IN SITU VITRIFICATION
                                             OZONATION
                                             SOIL WASHING
                                             SOLVENT RECOVERY
                                             STRIPPING
                                             FREEZE CRYSTALLIZATION
                                             ACTIVATED CARBON
                                             ACTIVATED SLUDGE
                                             AEROBIC BIOLOGICAL
                                             ANAEROBIC BIOLOGICAL
                                             CATALYSIS
                                             CHEMICAL OXIDATION
                                             CHEMICAL PRECIPITATION
                                             CHEMICAL TREATMENT
                                             ION EXCHANGE
                                             LIQUID-LIQUID EXTRACTION
                                             NEUTRALIZATION
                                             OZONATION
                                             STABILIZATION/SOLIDIFICATION
                                             STRIPPING
                                             ADSORPTION
                                             ADSORPTION
                                             CHEMICAL OXIDATION
                                             CHEMICAL OXIDATION
                                             CHEMICAL PRECIPITATION
                                             CHEMICAL PRECIPITATION
                                             COAGULATION/FLOCCULATION
                                             COAGULATION/FLOCCULATION
                                             LOU TEMP THERMAL STRIPPING
                                             OZONATION
                                             STRIPPING
                                             ACTIVATED CARBON
                                             ACTIVATED CARBON
                                             ACTIVATED SLUDGE
                                             ADSORPTION
                                             ADSORPTION
                                             CATALYSIS
                                                 IV- 58

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
ORGANIC CORROSIVES
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   11T RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    IT CORPORATION
                                    JACOBS ENGINEERING GROUP,  INC.
                                    JACOBS ENGINEERING GROUP,  INC.
                                    KIBER ASSOCIATES,  INC.
                                    KIBER ASSOCIATES,  INC.
                                    MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                    MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                    MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                    MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                    MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                    MCNAMEE ADVANCED TECHNOLOGY,  INC.
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHIOS I NAT ION
CRYSTALLIZATION
FILTRATION
IN SITU RADIO FREQUENCY HEATIN
IN SITU SOIL FLUSHING
IN SITU VACUUM & STEAM EXTRACT
ION EXCHANGE
ION EXCHANGE
LOU TEMP THERMAL STRIPPING
OZONATION
SOIL WASHING
SOLVENT RECOVERY
STABILIZATION/SOLIDIFICATION
STRIPPING
UV/OZONATION
ACTIVATED CARBON
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
BIOOEGRADATION-NOS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
CRYSTALLIZATION
IN SITU BIOOEGRADATION
INCINERATION
ION EXCHANGE
LIQUID-LIQUID EXTRACTION
NEUTRALIZATION
SOIL  WASHING
SOLVENT RECOVERY
STABILIZATION/SOLIDIFICATION
STRIPPING
WET AIR OXIDATION
NEUTRALIZATION
PHYSICAL  SEPARATION
STABILIZATION/SOLIDIFICATION
ACTIVATED CARBON
CHEMICAL  PRECIPITATION
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
BIXEGRADATI ON - COMPOST ING
                                                 IV- 59

-------
                                TABLE » 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
ORGANIC CORROSIVES
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MIDWEST RESEARCH INSTITUTE
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGIES
                                   RMC ENV & ANALYTICAL LABORATORIES
                                   RMC ENV & ANALYTICAL LABORATORIES
                                   RMC ENV & ANALYTICAL LABORATORIES
                                   RMC ENV & ANALYTICAL LABORATORIES
                                   RMC ENV & ANALYTICAL LABORATORIES
                                   RMC ENV & ANALYTICAL LABORATORIES
BIODEGRADATION-SLURRY PHASE
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
COAGULATION/FLOCCULAT I ON
CRYSTALLIZATION
DEUATERING
FILTRATION
INCINERATION
ION EXCHANGE
LIQUID-LIQUID EXTRACTION
NEUTRALIZATION
OZONATION
PACT
REVERSE OSMOSIS
SOLVENT RECOVERY
STABILIZATION
STABILIZATION/SOLIDIFICATION
STRIPPING
THERMAL COMBUSTION
UV/OXIDATION
VITRIFICATION
WET AIR OXIDATION
WET AIR OXIDATION
BIOOEGRADATION-NOS
ACTIVATED  CARBON
ACTIVATED  SLUDGE
ANAEROBIC  BIOLOGICAL
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHLORINATION
ELECTRODIALYSIS
ION EXCHANGE
OZONATION
REVERSE OSMOSIS
STABILIZATION/SOLIDIFICATION
STRIPPING
ACTIVATED  CARBON
ANAEROBIC  BIOLOGICAL
BIODEGRADATION-SLURRY  PHASE
BIODEGRADATION-SOLID  PHASE
STABILIZATION/SOLIDIFICATION
STRIPPING
CHEMICAL EXTRACTION
CHEMICAL TREATMENT
 IN SITU VACUUM &  STEAM EXTRACT
 IN SITU VITRIFICATION
 INCINERATION
SOIL  WASHING
                                                 IV- 60

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
ORGANIC CORROSIVES
                                   RMC ENV & ANALYTICAL LABORATORIES
                                   ROY f. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   UESTINGHOUSE SCIENCE & TECHNOLOGY
                                    ZENON ENVIRONMENTAL
                                    ZENON ENVIRONMENTAL
                                    ZENON ENVIRONMENTAL
                                    ZENON ENVIRONMENTAL
                                    ZENON ENVIRONMENTAL
                                    ZENON ENVIRONMENTAL
                                             STABILIZATION/SOLIDIFICATION
                                             ACTIVATED CARBON
                                             CENTRIFUGATION
                                             CHEMICAL EXTRACTION
                                             CHEMICAL OXIDATION
                                             CHEMICAL PRECIPITATION
                                             CHEMICAL REDUCTION
                                             CHEMICAL TREATMENT
                                             CHLORINATION
                                             COAGULATION/FLOCCULATION
                                             FILTRATION
                                             FILTRATION
                                             FLOTATION THICKENING
                                             GRAVITY THICKENING
                                             IN SITU SOIL  FLUSHING
                                             ION EXCHANGE
                                             NEUTRALIZATION
                                             OZONATION
                                             SEDIMENTATION
                                             SOIL UASHING
                                             STABILIZATION/SOLIDIFICATION
                                             STRIPPING
                                             ANAEROBIC BIOLOGICAL
                                             CHEMICAL EXTRACTION
                                             ION EXCHANGE
                                             LIQUID-LIQUID EXTRACTION
                                             NEUTRALIZATION
                                             REVERSE OSMOSIS
                                             STABILIZATION/SOLIDIFICATION
                                             VITRIFICATION
                                             SOIL UASHING
                                             ACTIVATED CARBON
                                             ACTIVATED SLUDGE
                                             BIODEGRADATION-NOS
                                             CHEMICAL PRECIPITATION
                                             REVERSE OSMOSIS
                                             STABILIZATION/SOLIDIFICATION
 ORGANIC CYANIDES
 APPLIED
 APPLIED
 APPLIED
 APPLIED
 APPLIED
 APPLIED
 APPLIED
 APPLIED
 APPLIED
 APPLIED
 APPLIED
 APPLIED
 APPLIED
 APPLIED
 APPLIED
                                            SURFACE
                                            SURFACE
                                            SURFACE
                                            SURFACE
                                            SURFACE
                                            SURFACE
                                            SURFACE
                                            SURFACE
                                            SURFACE
                                            SURFACE
                                            SURFACE
                                            SURFACE
                                            SURFACE
                                            SURFACE
                                            SURFACE
TECHNOLOGY
TECHNOLOGY
TECHNOLOGY
TECHNOLOGY
TECHNOLOGY
TECHNOLOGY
TECHNOLOGY
TECHNOLOGY
TECHNOLOGY
TECHNOLOGY
TECHNOLOGY
TECHNOLOGY
TECHNOLOGY
TECHNOLOGY
TECHNOLOGY
ACTIVATED CARBON
ADSORPTION
CATALYSIS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL TREATMENT
CHLORINATION
CRYSTALLIZATION
ELECTROOIALYSIS
ELECTROLYSIS
FLUID-BED STRIPPING
IN SITU SOIL FLUSHING
ION EXCHANGE
LOU TEMP THERMAL STRIPPING
                                                 IV- 61

-------
                                TABLE  # 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT  TECHNOLOGY
ORGANIC CYANIDES
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   BIOSCIENCE MANAGEMENT,  INC.
                                   BIOSCIENCE MANAGEMENT,  INC.
                                   BIOSCIENCE MANAGEMENT,  INC.
                                   BIOSCIENCE MANAGEMENT,  INC.
                                   BIOSCIENCE MANAGEMENT,  INC.
                                   BIOSCIENCE MANAGEMENT,  INC.
                                   BIOSCIENCE MANAGEMENT,  INC.
                                   CYTO CULTURE ENVIRON. BIOTECH.
                                   CYTO CULTURE ENVIRON. BIOTECH.
                                   CYTO CULTURE ENVIRON. BIOTECH.
                                   CYTO CULTURE ENVIRON. BIOTECH.
                                   CYTO CULTURE ENVIRON. BIOTECH.
                                   CYTO CULTURE ENVIRON. BIOTECH.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   E M &  C ENGINEERING ASSOCIATES
                                   E M &  C ENGINEERING ASSOCIATES
                                   E M &  C ENGINEERING ASSOCIATES
                                   E M &  C ENGINEERING ASSOCIATES
                                   E M &  C ENGINEERING ASSOCIATES
                                   E M &  C ENGINEERING ASSOCIATES
                                   E M &  C ENGINEERING ASSOCIATES
                                   E M &  C ENGINEERING ASSOCIATES
                                   E M &  C ENGINEERING ASSOCIATES
                                   E M &  C ENGINEERING ASSOCIATES
                                   E M &  C ENGINEERING ASSOCIATES
OZONATION
REVERSE OSMOSIS
SOIL WASHING
SOLIDIFICATION
STABILIZATION
STRIPPING
THERMAL DECOMPOSITION
ULTRAFILTRATION
AEROBIC BIOLOGICAL
BIODEGRADATI ON-COMPOST ING
BICOEGRADATION-SLURRY PHASE
BIODEGRADATION-SOL1D PHASE
IN SITU BIODEGRADATION
NEUTRALIZATION
STRIPPING
AEROBIC BIOLOGICAL
BICOEGRADATION-COMPOSTING
BIOOEGRADATION-NOS
BIODEGRADATI ON-SOL ID PHASE
IN SITU SOIL  FLUSHING
SOIL WASHING
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
ANAEROBIC BIOLOGICAL
BIODEGRADATION-COMPOST ING
BIODEGRADATION-SLURRY PHASE
BIOOEGRADATION-SOL1D PHASE
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
IN SITU BIODEGRADATION
IN SITU SOIL  FLUSHING
IN SITU VACUUM &  STEAM EXTRACT
IN SITU VITRIFICATION
OZONATION
SOIL WASHING
SOLVENT RECOVERY
STRIPPING
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
BIOOEGRADATION-NOS
CATALYSIS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
                                                 IV- 62

-------
                                TABLE it 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
ORGANIC CYANIDES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   ENERGY&ENVIRONMENTAL RESEARCH CORP.
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                    IIT  RESEARCH  INST
                                    I IT  RESEARCH  INST
                                    IIT  RESEARCH  INST
                                    IIT  RESEARCH  INST
                                    IIT  RESEARCH  INST
                                    IIT  RESEARCH  INST
                                    IIT  RESEARCH  INST
                                    IIT  RESEARCH  INST
                                    IIT  RESEARCH  INST
                                    IIT  RESEARCH  INST
                                    IIT  RESEARCH  INST
                                    IIT  RESEARCH  INST
                                    IIT  RESEARCH  INST
CHEMICAL TREATMENT
CHLORINATION
CRYSTALLIZATION
IN SITU SOIL FLUSHING
INCINERATION
ION EXCHANGE
LIQUID-LIQUID EXTRACTION
LOU TEMP THERMAL STRIPPING
NEUTRALIZATION
OZONATION
REVERSE OSMOSIS
SOLVENT RECOVERY
STABILIZATION
STRIPPING
VITRIFICATION
WET AIR OXIDATION
INCINERATION
ACTIVATED CARBON
ACTIVATED SLUDGE
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL TREATMENT
ION EXCHANGE
LIQUID-LIQUID EXTRACTION
NEUTRALIZATION
OZONATION
STABILIZATION/SOLIDIFICATION
STRIPPING
ADSORPTION
ADSORPTION
CHEMICAL OXIDATION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL PRECIPITATION
COAGULATION/FLOCCULATI ON
LOW TEMP THERMAL  STRIPPING
OZONATION
STRIPPING
ACTIVATED CARBON
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
ADSORPTION
CATALYSIS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
CRYSTALLIZATION
                                                 IV- 63

-------
                                TABLE # A (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
ORGANIC CYANIDES
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    INTERNATIONAL PROCESS RESEARCH CORP
                                    IT  CORPORATION
                                    IT  CORPORATION
                                    IT  CORPORATION
                                    JACOBS ENGINEERING  GROUP,  INC.
                                    KIBER ASSOCIATES,  INC.
                                    KIBER ASSOCIATES,  INC.
                                   HCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   HCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                    MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                    MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                    MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                    MCNAMEE ADVANCED TECHNOLOGY,  INC.
FILTRATION
IN SITU RADIO FREQUENCY HEATIN
IN SITU SOIL FLUSHING
IN SITU VACUUM & STEAM EXTRACT
ION EXCHANGE
ION EXCHANGE
LOU TEMP THERMAL STRIPPING
OZONATION
SOIL WASHING
SOLVENT RECOVERY
STABILIZATION/SOLIDIFICATION
STRIPPING
UV/OZONATION
ACTIVATED CARBON
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
BIODEGRADATION-NOS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CRYSTALLIZATION
IN SITU BIODEGRADATION
INCINERATION
ION EXCHANGE
LIQUID-LIQUID EXTRACTION
NEUTRALIZATION
OZONATION
SOIL WASHING
SOLVENT RECOVERY
STABILIZATION/SOLIDIFICATION
STRIPPING
WET AIR OXIDATION
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHLORINATION
CHEMICAL OXIDATION
ACTIVATED CARBON
CHEMICAL PRECIPITATION
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
BIODEGRADATION-COMPOSTING
BIODEGRADATION-SLURRY PHASE
BIODEGRADATION-SOL1D.PHASE
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
                                                 IV-  64

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
ORGANIC CYANIDES
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   HCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   HCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MIDWEST RESEARCH INSTITUTE
                                   O'BRIEN AND GERE ENGINEERS,  INC.
                                   O'BRIEN AND GERE ENGINEERS,  INC.
                                   O'BRIEN AND GERE ENGINEERS,  INC.
                                   O'BRIEN AND GERE ENGINEERS,  INC.
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGIES
                                   RMC ENV & ANALYTICAL LABORATORIES
                                   RMC ENV & ANALYTICAL LABORATORIES
                                   RMC ENV & ANALYTICAL LABORATORIES
                                   RMC ENV & ANALYTICAL LABORATORIES
                                   RMC ENV & ANALYTICAL LABORATORIES
                                   RMC ENV & ANALYTICAL LABORATORIES
                                   RMC ENV & ANALYTICAL LABORATORIES
CHEMICAL TREATMENT
CHLORINATION
COAGULATION/TLOCCULAT ION
CRYSTALLIZATION
DEWATERING
FILTRATION
INCINERATION
ION EXCHANGE
LIQUID-LIQUID EXTRACTION
NEUTRALIZATION
OZONATION
PACT
REVERSE OSMOSIS
SOLVENT RECOVERY
STABILIZATION
STABILIZATION/SOLIDIFICATION
STRIPPING
THERMAL COMBUSTION
UV/OXIOATION
VITRIFICATION
WET AIR OXIDATION
WET AIR OXIDATION
BIODEGRADATION-NOS
ADSORPTION
CHEMICAL OXIDATION
CHLORINATION
OZONATION
ACTIVATED CARBON
ACTIVATED SLUDGE
ANAEROBIC BIOLOGICAL
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHLORINATION
ELECTRODIALYSIS
ION EXCHANGE
OZONATION
REVERSE OSMOSIS
STABILIZATION/SOLIDIFICATION
STRIPPING
ACTIVATED CARBON
ANAEROBIC BIOLOGICAL
BIODEGRADATION-SLURRY PHASE
BIODEGRADATION-SOLID  PHASE
STABILIZATION/SOLIDIFICATION
STRIPPING
CHEMICAL EXTRACTION
CHEMICAL TREATMENT
IN SITU  VACUUM &  STEAM  EXTRACT
IN SITU  VITRIFICATION
INCINERATION
SOIL  WASHING
STABILIZATION/SOLIDIFICATION
                                                 IV- 65

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
ORGANIC CYANIDES
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. WESTON, INC.
                                   S-CUBED
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   SYBRON CHEMICALS,  INC.
                                   THORNE ENVIRONMENTAL,  INC.
                                   THORNE ENVIRONMENTAL,  INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   WESTERN  RESEARCH  INSTITUTE
                                   WESTERN  RESEARCH  INSTITUTE
                                   WESTERN  RESEARCH  INSTITUTE
                                   WESTERN  RESEARCH  INSTITUTE
                                   WESTERN  RESEARCH  INSTITUTE
                                   WESTERN  RESEARCH  INSTITUTE
                                   WESTERN  RESEARCH  INSTITUTE
                                   WESTERN  RESEARCH  INSTITUTE
                                   WESTERN  RESEARCH  INSTITUTE
                                   UESTERN  RESEARCH  INSTITUTE
                                   UESTERN  RESEARCH  INSTITUTE
                                             ACTIVATED CARBON
                                             CENTRIFUGATION
                                             CHEMICAL EXTRACTION
                                             CHEMICAL OXIDATION
                                             CHEMICAL PRECIPITATION
                                             CHEMICAL REDUCTION
                                             CHEMICAL TREATMENT
                                             CHLORINATION
                                             COAGULATION/FLOCCULATI ON
                                             FILTRATION
                                             FILTRATION
                                             FLOTATION THICKENING
                                             GRAVITY THICKENING
                                             IN SITU SOIL FLUSHING
                                             ION EXCHANGE
                                             NEUTRALIZATION
                                             OZONATION
                                             SEDIMENTATION
                                             SOIL UASHING
                                             STABILIZATION/SOLIDIFICATION
                                             STRIPPING
                                             LIQUID-LIQUID EXTRACTION
                                             ACTIVATED SLUDGE
                                             ADSORPTION
                                             AEROBIC BIOLOGICAL
                                             BIODEGRADATION-SLURRY PHASE
                                             BIODEGRADATION-SOLID PHASE
                                             IN SITU BIOOEGRADATION
                                             IN SITU SOIL FLUSHING
                                             IN SITU VACUUM &  STEAM  EXTRACT
                                             ION EXCHANGE
                                             SOIL UASHING
                                             STABILIZATION/SOLIDIFICATION
                                             UV/DEEP TREATMENT
                                             ANAEROBIC BIOLOGICAL
                                             CHEMICAL EXTRACTION
                                             ION EXCHANGE
                                             LIQUID-LIQUID EXTRACTION
                                             NEUTRALIZATION
                                             REVERSE OSMOSIS
                                             STABILIZATION/SOLIDIFICATION
                                             VITRIFICATION
                                             ACTIVATED CARBON
                                             AEROBIC BIOLOGICAL
                                             ANAEROBIC BIOLOGICAL
                                             CHEMICAL OXIDATION
                                             CHEMICAL PRECIPITATION
                                             CHEMICAL REDUCTION
                                             DEUATERING
                                             ELECTROCOAGULATION
                                             ION EXCHANGE
                                             LIQUID-SOLID  SEPARATION
                                             NEUTRALIZATION
                                                 IV-  66

-------
CONTAMINANT GROUP
                                TABLE # 4 (CONTINUED)

                                   COMPANY NAME
                                             TREATMENT TECHNOLOGY
ORGANIC CYANIDES
                                   WESTERN RESEARCH INSTITUTE
                                   WESTERN RESEARCH INSTITUTE
                                   ZENON ENVIRONMENTAL
                                   2ENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
                                             REVERSE OSMOSIS
                                             STRIPPING
                                             ACTIVATED CARBON
                                             ACTIVATED SLUDGE
                                             BIODEGRADATION-NOS
                                             CHEMICAL PRECIPITATION
                                             REVERSE OSMOSIS
                                             STABILIZATION/SOLIDIFICATION
OXIDIZERS
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
AAA CSI
APPLIED
APPLIED
APPLIED
APPLIED
APPLIED
APPLIED
APPLIED
APPLIED
APPLIED
APPLIED
APPLIED
APPLIED
APPLIED
APPLIED
APPLIED
APPLIED
APPLIED
APPLIED
APPLIED
APPLIED
APPLIED
                                            SURFACE
                                            SURFACE
                                            SURFACE
                                            SURFACE
                                            SURFACE
                                            SURFACE
                                            SURFACE
                                            SURFACE
                                            SURFACE
                                            SURFACE
                                            SURFACE
                                            SURFACE
                                            SURFACE
                                            SURFACE
                                            SURFACE
                                            SURFACE
                                            SURFACE
                                            SURFACE
                                            SURFACE
                                            SURFACE
                                            SURFACE
TECHNOLOGY
TECHNOLOGY
TECHNOLOGY
TECHNOLOGY
TECHNOLOGY
TECHNOLOGY
TECHNOLOGY
TECHNOLOGY
TECHNOLOGY
TECHNOLOGY
TECHNOLOGY
TECHNOLOGY
TECHNOLOGY
TECHNOLOGY
TECHNOLOGY
TECHNOLOGY
TECHNOLOGY
TECHNOLOGY
TECHNOLOGY
TECHNOLOGY
TECHNOLOGY
ACTIVATED CARBON
ADSORPTION
CATALYSIS
CENTRIFUGATION
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CRYSTALLIZATION
FILTRATION
IN SITU VACUUM & STEAM EXTRACT
INCINERATION
INCINERATION
LIQUID-LIQUID EXTRACTION
LOW TEMP THERMAL STRIPPING
NEUTRALIZATION
SOLVENT RECOVERY
STABILIZATION/SOLIDIFICATION
STRIPPING
THERMAL PROCESSING
WET AIR OXIDATION
WET AIR OXIDATION
ACTIVATED CARBON
ADSORPTION
CATALYSIS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL TREATMENT
CHLORINATION
CRYSTALLIZATION
ELECTRODIALYSIS
ELECTROLYSIS
FLUID-BED STRIPPING
IN  SITU  SOIL  FLUSHING
ION EXCHANGE
LOW TEMP THERMAL  STRIPPING
OZONATION
REVERSE  OSMOSIS
SOIL  WASHING
SOLIDIFICATION
STABILIZATION
STRIPPING
                                                 IV- 67

-------
CONTAMINANT GROUP
                                TABLE # 4 (CONTINUED)

                                   COMPANY NAME
TREATMENT TECHNOLOGY
OXIDIZERS
                                   APPLIED SURFACE TECHNOLOGY
                                   APPLIED SURFACE TECHNOLOGY
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   ENERGY&ENVIRONMENTAL RESEARCH CORP.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                   ENSOTECH,  INC.
                                    ENSOTECH,  INC.
                                    ENSOTECH,  INC.
                                    ENSOTECH,  INC.
THERMAL DECOMPOSITION
ULTRAFILTRATION
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
BIODEGRADATION-NOS
CATALYSIS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
CRYSTALLIZATION
IN SITU SOIL FLUSHING
INCINERATION
ION EXCHANGE
LIQUID-LIQUID EXTRACTION
LOU TEMP THERMAL STRIPPING
NEUTRALIZATION
OZONATION
REVERSE OSMOSIS
SOLVENT RECOVERY
STABILIZATION
STRIPPING
VITRIFICATION
WET AIR OXIDATION
INCINERATION
ACTIVATED SLUDGE
ADSORPTION
BIODEGRADATION-NOS
BIODEGRADATION-NOS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
FILTRATION
IN SITU BIOOEGRADATION
IN SITU SOIL  FLUSHING
IN SITU VACUUM  & STEAM  EXTRACT
INCINERATION
ION EXCHANGE
LOW TEMP THERMAL STRIPPING
NEUTRALIZATION
SOIL  WASHING
STABILIZATION/SOLIDIFICATION
STABILIZATION/SOLIDIFICATION
STRIPPING
VITRIFICATION
                                                 IV-  68

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
OXIOIZERS
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   I IT  RESEARCH  INST
                                   I IT  RESEARCH  INST
                                   I IT  RESEARCH  INST
                                   I IT  RESEARCH  INST
                                   I IT  RESEARCH  INST
                                   I IT  RESEARCH  INST
                                   I IT  RESEARCH  INST
                                   I IT  RESEARCH  INST
                                   I IT  RESEARCH  INST
                                   I IT  RESEARCH  INST
                                   I IT  RESEARCH  INST
                                   I IT  RESEARCH  INST
                                    I IT  RESEARCH  INST
                                    I IT  RESEARCH  INST
                                    I IT  RESEARCH  INST
                                    I IT  RESEARCH  INST
                                    (IT  RESEARCH  INST
                                    I IT  RESEARCH  INST
                                    I IT  RESEARCH  INST
                                    I IT  RESEARCH  INST
                                    I IT  RESEARCH  INST
                                    I IT  RESEARCH  INST
                                    I IT  RESEARCH  INST
                                    I IT  RESEARCH  INST
                                    I IT  RESEARCH  INST
                                    I IT  RESEARCH  INST
                                    INTERNATIONAL PROCESS RESEARCH
                                    INTERNATIONAL PROCESS RESEARCH
                                    INTERNATIONAL PROCESS RESEARCH
                                    INTERNATIONAL PROCESS RESEARCH
                                    INTERNATIONAL PROCESS RESEARCH
                                    INTERNATIONAL PROCESS RESEARCH
                                    INTERNATIONAL PROCESS RESEARCH
                                    INTERNATIONAL PROCESS RESEARCH
                                    INTERNATIONAL PROCESS RESEARCH
                                    INTERNATIONAL PROCESS RESEARCH
                                    INTERNATIONAL PROCESS RESEARCH
                                    INTERNATIONAL PROCESS RESEARCH
                                    INTERNATIONAL PROCESS RESEARCH
                                    INTERNATIONAL PROCESS RESEARCH
                                    INTERNATIONAL PROCESS RESEARCH
CORP
CORP
CORP
CORP
CORP
CORP
CORP
CORP
CORP
CORP
CORP
CORP
CORP
CORP
CORP
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
CHEMICAL REDUCTION
ION EXCHANGE
NEUTRALIZATION
OZONATION
CHLORI NAT ION
LOW TEMP THERMAL STRIPPING
NEUTRALIZATION
OZONATION
STABILIZATION/SOLIDIFICATION
STRIPPING
ACTIVATED CARBON
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
ADSORPTION
CATALYSIS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
CRYSTALLIZATION
FILTRATION
IN  SITU RADIO FREQUENCY  HEATIN
IN  SITU SOIL  FLUSHING
IN  SITU VACUUM &  STEAM EXTRACT
ION EXCHANGE
ION EXCHANGE
LOU TEMP  THERMAL  STRIPPING
OZONATION
SOIL WASHING
SOLVENT RECOVERY
STABILIZATION/SOLIDIFICATION
STRIPPING
UV/OZONATION
ACTIVATED CARBON
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
BIODEGRADATION-NOS
CHEMICAL  EXTRACTION
CHEMICAL  OXIDATION
CHEMICAL  PRECIPITATION
CHEMICAL  REDUCTION
CHEMICAL  TREATMENT
 CHLORINATION
 CRYSTALLIZATION
 IN SITU BIODEGRADATION
 INCINERATION
 ION EXCHANGE
                                                  IV- 69

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
OXIDIZERS
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   IT CORPORATION
                                   IT CORPORATION
                                   KIBER ASSOCIATES, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   HCNAMEE ADVANCED TECHNOLOGY, INC.
                                   O'BRIEN AND  GERE ENGINEERS,  INC.
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
LIQUID-LIQUID EXTRACTION
NEUTRALIZATION
OZONATION
SOIL WASHING
SOLVENT RECOVERY
STABILIZATION/SOLIDIFICATION
STRIPPING
WET AIR OXIDATION
CATALYSIS
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
BIODEGRADATION-COMPOSTING
BIODEGRAOATION-SLURRY PHASE
BIODEGRADATION-SOLID PHASE
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
COAGULATION/FLOCCULATION
CRYSTALLIZATION
OEUATERING
FILTRATION
INCINERATION
ION EXCHANGE
LIQUID-LIQUID EXTRACTION
NEUTRALIZATION
OZONATION
PACT
REVERSE OSMOSIS
SOLVENT RECOVERY
STABILIZATION
STABILIZATION/SOLIDIFICATION
STRIPPING
THERMAL COMBUSTION
UV/OXIDATION
VITRIFICATION
WET AIR OXIDATION
WET AIR OXIDATION
CHEMICAL REDUCTION
ACTIVATED CARBON
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHLORINATION
ELECTRODIALYSIS
 ION EXCHANGE
                                                 IV-  70

-------
CONTAMINANT GROUP
TABLE # 4 (CONTINUED)

   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
OXIDIZERS
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RODNEY KINNEY ASSOCIATES
                                   RODNEY KINNEY ASSOCIATES
                                   RODNEY KINNEY ASSOCIATES
                                   RODNEY KINNEY ASSOCIATES
                                   RODNEY KINNEY ASSOCIATES
                                   RODNEY KINNEY ASSOCIATES
                                   RODNEY KINNEY ASSOCIATES
                                   THORNE ENVIRONMENTAL,  INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
                                                OZONATION
                                                REVERSE OSMOSIS
                                                STABILIZATION/SOLIDIFICATION
                                                STRIPPING
                                                ACTIVATED CARBON
                                                ADSORPTION
                                                CHLORINATION
                                                CRYSTALLIZATION
                                                ELECTROOIALYSIS
                                                ION EXCHANGE
                                                NEUTRALIZATION
                                                NEUTRALIZATION
                                                OZONATION
                                                STRIPPING
                                                AEROBIC BIOLOGICAL
                                                ANAEROBIC BIOLOGICAL
                                                CHEMICAL OXIDATION
                                                CHEMICAL PRECIPITATION
                                                CHEMICAL REDUCTION
                                                CHLORINATION
                                                STABILIZATION/SOLIDIFICATION
                                                UV/DEEP TREATMENT
                                                ACTIVATED SLUDGE
                                                ADSORPTION
                                                CHEMICAL EXTRACTION
                                                CHEMICAL EXTRACTION
                                                CHEMICAL OXIDATION
                                                CHEMICAL PRECIPITATION
                                                ION EXCHANGE
                                                LIQUID-LIQUID EXTRACTION
                                                NEUTRALIZATION
                                                VITRIFICATION
                                                WET AIR OXIDATION
                                                ACTIVATED CARBON
                                                CHEMICAL REDUCTION
 PCBs
    AAA CSI
    AAA CSI
    AAA CSI
    AAA CSI
    AAA CSI
    AAA CSI
    AAA CSI
    AAA CSI
    AAA CSI
    AAA CSI
    AAA CSI
    AAA CSI
    AAA CSI
    AAA CSI
    AAA CSI
    AAA CSI
    AAA CSI
                                                                                ACTIVATED  CARBON
                                                                                ADSORPTION
                                                                                CATALYSIS
                                                                                CENTRIFUGATION
                                                                                CHEMICAL EXTRACTION
                                                                                CHEMICAL OXIDATION
                                                                                CHEMICAL PRECIPITATION
                                                                                CHEMICAL REDUCTION
                                                                                CHEMICAL TREATMENT
                                                                                CRYSTALLIZATION
                                                                                FILTRATION
                                                                                IN  SITU VACUUM &  STEAM  EXTRACT
                                                                                INCINERATION
                                                                                INCINERATION
                                                                                LIQUID-LIQUID EXTRACTION
                                                                                LOU TEMP THERMAL  STRIPPING
                                                                                NEUTRALIZATION
                                                 IV- 71

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
TREATMENT TECHNOLOGY
PCBs
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AEA TECHNOLOGY
                                   BIOSCIENCE MANAGEMENT, INC.
                                   BIOSCIENCE MANAGEMENT, INC.
                                   BIOSCIENCE MANAGEMENT, INC.
                                   BIOSCIENCE MANAGEMENT, INC.
                                   BIOSCIENCE MANAGEMENT, INC.
                                   BIOSCIENCE MANAGEMENT, INC.
                                   BIOSCIENCE MANAGEMENT, INC.
                                   CAA BIOREMEOIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CYTO  CULTURE  ENVIRON. BIOTECH.
                                   CYTO  CULTURE  ENVIRON. BIOTECH.
                                   CYTO  CULTURE  ENVIRON. BIOTECH.
                                   CYTO  CULTURE  ENVIRON. BIOTECH.
                                   CYTO  CULTURE  ENVIRON. BIOTECH.
                                   CYTO  CULTURE  ENVIRON. BIOTECH.
                                   E  M & C  ENGINEERING ASSOCIATES
                                   E  M & C  ENGINEERING ASSOCIATES
                                   E  M & C  ENGINEERING ASSOCIATES
                                   E  M & C  ENGINEERING ASSOCIATES
                                   E  M & C  ENGINEERING ASSOCIATES
                                   E  M & C  ENGINEERING ASSOCIATES
                                   E  M & C  ENGINEERING ASSOCIATES
                                   E  N & C  ENGINEERING ASSOCIATES
                                   E  M & C  ENGINEERING ASSOCIATES
                                   E  M & C  ENGINEERING ASSOCIATES
                                   E  M & C  ENGINEERING ASSOCIATES
                                   E  M & C  ENGINEERING ASSOCIATES
                                   E  M & C  ENGINEERING ASSOCIATES
                                   E  M & C  ENGINEERING ASSOCIATES
                                   E  M & C  ENGINEERING ASSOCIATES
                                   E  M & C  ENGINEERING ASSOCIATES
                                   E  M & C  ENGINEERING ASSOCIATES
SOLVENT RECOVERY
STABILIZATION/SOLIDIFICATION
STRIPPING
THERMAL PROCESSING
WET AIR OXIDATION
WET AIR OXIDATION
ELECTROCHEMICAL INCINERATION
AEROBIC BIOLOGICAL
BIOOEGRADATION-COMPOST ING
BIOOEGRADATION-SLURRY PHASE
BIOOEGRADATION-SOLID PHASE
IN SITU BIOOEGRADATION
NEUTRALIZATION
STRIPPING
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
BIOOEGRADATION-SOLID PHASE
CHEMICAL EXTRACTION
IN SITU BIOOEGRADATION
IN SITU SOIL  FLUSHING
IN SITU VACUUM & STEAM EXTRACT
LIQUID-LIQUID EXTRACTION
LOU TEMP THERMAL STRIPPING
NEUTRALIZATION
NEUTRALIZATION
SOIL WASHING
STRIPPING
AEROBIC BIOLOGICAL
BIOOEGRADATI ON-COMPOST ING
BI OOEGRADATI ON-NOS
BIOOEGRADATION-SOLID PHASE
IN SITU SOIL  FLUSHING
SOIL WASHING
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
BIODEGRADATION-NOS
CATALYSIS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
CRYSTALLIZATION
IN SITU SOIL  FLUSHING
INCINERATION
ION EXCHANGE
                                                 IV-  72

-------
CONTAMINANT GROUP
                                TABLE # 4 (CONTINUED)

                                   COMPANY NAME
TREATMENT TECHNOLOGY
PCBs
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   ENERGY&ENVIRONMENTAL RESEARCH CORP.
                                   ENVIRONMENTAL REMEDIATION, INC.
                                   ENVIRONMENTAL REMEDIATION, INC.
                                   ENVIRONMENTAL REMEDIATION, INC.
                                   ENVIRONMENTAL REMEDIATION, INC.
                                   ENVIRONMENTAL REMEDIATION, INC.
                                   ENVIRONMENTAL REMEDIATION, INC.
                                   ENVIRONMENTAL REMEDIATION, INC.
                                   ENVIRONMENTAL REMEDIATION, INC.
                                   ENVIROSAFE  TECHNOLOGIES,  INC.
                                   GENERAL PHYSICS  CORPORATION
                                   GENERAL PHYSICS  CORPORATION
                                   GENERAL PHYSICS  CORPORATION
                                   GENERAL PHYSICS  CORPORATION
                                   GENERAL PHYSICS  CORPORATION
                                   HARMON ENVIRONMENTAL  SERVICES,  INC.
                                   HARMON ENVIRONMENTAL  SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                    HUNTER SERVICES,  INC.
                                    HUNTER SERVICES,  INC.
                                    HUNTER SERVICES,  INC.
                                    HUNTER SERVICES,  INC.
                                    HUNTER SERVICES,  INC.
                                    I IT RESEARCH INST
                                    I IT RESEARCH INST
                                    IIT RESEARCH INST
                                    I IT RESEARCH INST
                                    I IT RESEARCH INST
                                    I IT RESEARCH INST
                                    I IT RESEARCH INST
                                    I IT RESEARCH INST
                                    IIT RESEARCH INST
                                    I IT RESEARCH INST
                                    I IT RESEARCH INST
                                    I IT RESEARCH INST
                                    I IT RESEARCH INST
                                    I IT RESEARCH INST
                                    IIT RESEARCH INST
LIQUID-LIQUID EXTRACTION
LOU TEMP THERMAL STRIPPING
OZONATION
REVERSE OSMOSIS
SOLVENT RECOVERY
STABILIZATION
STRIPPING
VITRIFICATION
WET AIR OXIDATION
INCINERATION
ACTIVATED SLUDGE
AEROBIC BIOLOGICAL
BIODEGRADATION-COMPOST ING
BIODEGRADATION-SLURRY PHASE
BIODEGRADATION-SOLID PHASE
CHEMICAL TREATMENT
IN SITU BIODEGRADATI ON
SOIL WASHING
STABILIZATION
ACTIVATED SLUDGE
ADSORPTION
IN SITU BIODEGRADATION
LIQUID-LIQUID EXTRACTION
STRIPPING
SOIL WASHING
STABILIZATION/SOLIDIFICATION
ACTIVATED SLUDGE
ADSORPTION
ADSORPTION
CHEMICAL OXIDATION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL PRECIPITATION
COAGULATION/FLOCCULATION
COAGULATION/FLOCCULATION
LOU  TEMP THERMAL  STRIPPING
STABILIZATION/SOLIDIFICATION
STRIPPING
ACTIVATED CARBON
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
ADSORPTION
CATALYSIS
CHEMICAL  EXTRACTION
 CHEMICAL  OXIDATION
 CHEMICAL  PRECIPITATION
 CHEMICAL  REDUCTION
 CHEMICAL  TREATMENT
 CHLORINATION
 CRYSTALLIZATION
 FILTRATION
 IN SITU RADIO FREQUENCY HEATIN
                                                 IV- 73

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
PCBs
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   IIT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   IT CORPORATION
                                   IT CORPORATION
                                   IT CORPORATION
                                   IT CORPORATION
                                   IT CORPORATION
                                   KIBER ASSOCIATES, INC.
                                   KIBER ASSOCIATES, INC.
                                   MARINE POLUTION CONTROL
                                   MARINE POLUTION CONTROL
                                   MARINE POLUTION CONTROL
                                   MIDWEST RESEARCH  INSTITUTE
                                   MIDWEST RESEARCH  INSTITUTE
                                   O'BRIEN AND GERE  ENGINEERS,  INC.
                                   O'BRIEN AND GERE  ENGINEERS,  INC.
                                   O'BRIEN AND GERE  ENGINEERS,  INC.
                                   O'BRIEN AND GERE  ENGINEERS,  INC.
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                    OHM CORPORATION
                                    OHM CORPORATION
                                    OHM CORPORATION
                                    OHM CORPORATION
                                    OHM CORPORATION
                                    OHM CORPORATION
                                    OHM CORPORATION
                                    OHM CORPORATION
                                    OHM CORPORATION
                                    OHM CORPORATION
                                    OHM CORPORATION
IN SITU SOIL FLUSHING
IN SITU VACUUM & STEAM EXTRACT
ION EXCHANGE
ION EXCHANGE
LOW TEMP THERMAL STRIPPING
OZONATION
SOIL WASHING
SOLVENT RECOVERY
STABILIZATION/SOLIDIFICATION
STRIPPING
UV/OZONATION
CHEMICAL TREATMENT
LIQUID-LIQUID EXTRACTION
LOW TEMP THERMAL STRIPPING
STABILIZATION/SOLIDIFICATION
WET AIR OXIDATION
ACTIVATED CARBON
CHEMICAL PRECIPITATION
FILTRATION
NEUTRALIZATION
STABILIZATION/SOLIDIFICATION
BIODEGRADATION-NOS
INCINERATION
ACTIVATED CARBON
ADSORPTION
STABILIZATION/SOLIDIFICATION
UV/PHOTOLYSIS
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
BIODEGRADATION-NOS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
CRYSTALLIZATION
DEWATERING
 IN  SITU BIODEGRADATION
 IN  SITU BIODEGRADATION
 IN  SITU SOIL  FLUSHING
 IN  SITU VACUUM &  STEAM  EXTRACT
 INCINERATION
 ION EXCHANGE
 LOW TEMP THERMAL  STRIPPING
 NEUTRALIZATION
OIL-WATER SEPARATION
 SOIL WASHING
 SOLVENT RECOVERY
 STABILIZATION/SOLIDIFICATION
                                                 IV-  74

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
PCBs
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   PETROLEUM TESTING SERVICE, INC.
                                   QUALTEC, INC.
                                   OUALTEC, INC.
                                   QUALTEC, INC.
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGY, INC.
                                   RMC ENV & ANALYTICAL LABORATORIES
                                   RMC ENV & ANALYTICAL LABORATORIES
                                   RMC ENV & ANALYTICAL LABORATORIES
                                   RMC ENV & ANALYTICAL LABORATORIES
                                   RMC ENV & ANALYTICAL LABORATORIES
                                   RMC ENV & ANALYTICAL LABORATORIES
                                   RMC ENV & ANALYTICAL LABORATORIES
                                   RODNEY  KINNEY  ASSOCIATES
                                   RODNEY  KINNEY  ASSOCIATES
                                   RODNEY  KINNEY  ASSOCIATES
                                   RODNEY  KINNEY  ASSOCIATES
                                   RODNEY  KINNEY  ASSOCIATES
                                   RODNEY  KINNEY  ASSOCIATES
                                   RODNEY  KINNEY  ASSOCIATES
                                   ROY F. UESTON,  INC.
                                   ROY F. WESTON,  INC.
                                   ROY F.  UESTON,  INC.
                                   ROY F.  UESTON,  INC.
                                   ROY F.  UESTON,  INC.
                                   ROY F.  UESTON,  INC.
                                   ROY F.  UESTON,  INC.
                                   ROY F.  UESTON,  INC.
                                   ROY F.  UESTON,  INC.
                                   ROY F.  UESTON,  INC.
                                   ROY F.  UESTON,  INC.
                                   ROY F.  UESTON,  INC.
                                   ROY F.  UESTON,  INC.
                                             STRIPPING
                                             THERMAL COMBUSTION
                                             IN SITU VACUUM & STEAM EXTRACT
                                             CHEMICAL PRECIPITATION
                                             ION EXCHANGE
                                             STABILIZATION/SOLIDIFICATION
                                             ACTIVATED CARBON
                                             ACTIVATED SLUDGE
                                             ANAEROBIC BIOLOGICAL
                                             CHEMICAL EXTRACTION
                                             CHEMICAL OXIDATION
                                             CHEMICAL PRECIPITATION
                                             CHLORINATION
                                             ELECTRODIALYSIS
                                             INCINERATION
                                             ION EXCHANGE
                                             OZONATION
                                             REVERSE OSMOSIS
                                             STABILIZATION/SOLIDIFICATION
                                             STRIPPING
                                             BIODEGRADATION-SOLID PHASE
                                             IN SITU BIODEGRADATION
                                             IN SITU SOIL FLUSHING
                                             IN SITU VACUUM & STEAM EXTRACT
                                             STABILIZATION/SOLIDIFICATION
                                             LOU ENERGY EXTRACTION PROCESS
                                             CHEMICAL EXTRACTION
                                             CHEMICAL TREATMENT
                                             IN SITU VACUUM & STEAM EXTRACT
                                             IN SITU VITRIFICATION
                                             INCINERATION
                                             SOIL UASHING
                                             STABILIZATION/SOLIDIFICATION
                                             AEROBIC BIOLOGICAL
                                             ANAEROBIC BIOLOGICAL
                                             CHEMICAL OXIDATION
                                             CHEMICAL PRECIPITATION
                                             CHEMICAL REDUCTION
                                             CHLORINATION
                                             STABILIZATION/SOLIDIFICATION
                                             ACTIVATED CARBON
                                             ACTIVATED SLUDGE
                                             AEROBIC BIOLOGICAL
                                             ANAEROBIC BIOLOGICAL
                                             BIODEGRADATION-COMPOSTING
                                             BIOOEGRADATION-SLURRY PHASE
                                             BIOOEGRADATION-SOLID PHASE
                                             CENTRIFUGATION
                                             CHEMICAL EXTRACTION
                                             CHEMICAL OXIDATION
                                             CHEMICAL REDUCTION
                                             CHEMICAL TREATMENT
                                             CHLORINATION
                                                 IV-  75

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
PCBs
                                   ROY F. WESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. WESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON. INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   S-CUBED
                                   SOUTHERN RESEARCH  INSTITUTE
                                   THORNE ENVIRONMENTAL,  INC.
                                   THORNE ENVIRONMENTAL,  INC.
                                   THORNE ENVIRONMENTAL,  INC.
                                   THORNE ENVIRONMENTAL,  INC.
                                   TREATEK, INC.
                                   TREATEK, INC.
                                   TREATEK, INC.
                                   TREATEK, INC.
                                   TREATEK, INC.
                                   ULTROX INTERNATIONAL
                                   ULTROX INTERNATIONAL
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   UESTERN RESEARCH  INSTITUTE
                                   UESTERN RESEARCH  INSTITUTE
                                   UESTINGHOUSE  SCIENCE  & TECHNOLOGY
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
COAGULAT ION/F LOCCULAT I ON
FILTRATION
FILTRATION
FLOTATION THICKENING
GRAVITY THICKENING
IN SITU BIODEGRAOATION
IN SITU RADIO FREQUENCY HEAT1N
IN SITU SOIL FLUSHING
IN SITU VACUUM & STEAM EXTRACT
INCINERATION
ION EXCHANGE
LOU TEMP THERMAL STRIPPING
NEUTRALIZATION
OZONATION
SEDIMENTATION
SOIL UASHING
STABILIZATION/SOLIDIFICATION
STRIPPING
LIQUID-LIQUID EXTRACTION
IN SITU BI ODE GRADATION
BIOOEGRADAT10N-SOLID PHASE
IN SITU BIODEGRADATION
IN SITU SOIL FLUSHING
UV/DEEP TREATMENT
ADSORPTION
AEROBIC BIOLOGICAL
CHEMICAL PRECIPITATION
SOIL UASHING
STRIPPING
UV/HYDROGEN PEROXIDE
UV/OZONATION
ANAEROBIC BIOLOGICAL
INCINERATION
ION EXCHANGE
LIQUID-LIQUID EXTRACTION
NEUTRALIZATION
REVERSE OSMOSIS
STABILIZATION/SOLIDIFICATION
ACTIVATED CARBON
SOIL UASHING
SOIL UASHING
ACTIVATED CARBON
ACTIVATED SLUDGE
BIODEGRADATION-NOS
CHEMICAL PRECIPITATION
REVERSE  OSMOSIS
STABILIZATION/SOLIDIFICATION
 PESTICIDES
                                    AAA  CSI
                                    AAA  CSI
                                    AAA  CSI
                                    AAA  CSI
                                    AAA  CSI
 ACTIVATED  CARBON
 ADSORPTION
 CATALYSIS
 CENTRIFUGATION
 CHEMICAL EXTRACTION
                                                 IV-  76

-------
CONTAMINANT GROUP
                                TABLE # 4 (CONTINUED)

                                   COMPANY NAME
TREATMENT TECHNOLOGY
PESTICIDES
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AEA TECHNOLOGY
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CAA BIOREMEDIATION SYSTEMS
                                   CYTO  CULTURE  ENVIRON.  BIOTECH.
                                   CYTO  CULTURE  ENVIRON.  BIOTECH.
                                   CYTO  CULTURE  ENVIRON.  BIOTECH.
                                   CYTO  CULTURE  ENVIRON.  BIOTECH.
                                   CYTO  CULTURE  ENVIRON.  BIOTECH.
                                   CYTO  CULTURE  ENVIRON.  BIOTECH.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CRYSTALLIZATION
FILTRATION
IN SITU VACUUM & STEAM EXTRACT
INCINERATION
INCINERATION
LIQUID-LIQUID EXTRACTION
LOU TEMP THERMAL STRIPPING
NEUTRALIZATION
SOLVENT RECOVERY
STABILIZATION/SOLIDIFICATION
STRIPPING
THERMAL PROCESSING
UET AIR OXIDATION
WET AIR OXIDATION
ELECTROCHEMICAL  INCINERATION
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
BIODEGRADATION-SOLID PHASE
CHEMICAL EXTRACTION
IN SITU BICOEGRADATION
IN SITU SOIL  FLUSHING
IN SITU VACUUM & STEAM EXTRACT
LIQUID-LIQUID EXTRACTION
LOU TEMP THERMAL STRIPPING
NEUTRALIZATION
NEUTRALIZATION
SOIL UASHING
STRIPPING
AEROBIC BIOLOGICAL
BIODEGRADATION-COMPOST ING
BIODEGRADATION-NOS
BIODEGRADATION-SOLID PHASE
IN SITU SOIL  FLUSHING
SOIL WASHING
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
ANAEROBIC BIOLOGICAL
81ODEGRADATION-COMPOST ING
BIODEGRADATION-SLURRY  PHASE
BIODEGRADATION-SOLID PHASE
CHEMICAL  EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL  TREATMENT
                                                 IV- 77

-------
CONTAMINANT GROUP
                                TABLE # 4 (CONTINUED)

                                   COMPANY NAME
TREATMENT TECHNOLOGY
PESTICIDES
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   ENERGY&ENVIRONMENTAL RESEARCH CORP.
                                   ENVIRONMENTAL REMEDIATION, INC.
                                   ENVIRONMENTAL REMEDIATION, INC.
                                   ENVIRONMENTAL REMEDIATION, INC.
                                   ENVIRONMENTAL REMEDIATION, INC.
                                   ENVIRONMENTAL REMEDIATION, INC.
                                   ENVIRONMENTAL REMEDIATION, INC.
                                   ENVIRONMENTAL REMEDIATION, INC.
                                   ENVIRONMENTAL REMEDIATION, INC.
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
CHLORINATION
IN SITU BIODEGRADATION
IN SITU SOIL FLUSHING
IN SITU VACUUM & STEAM EXTRACT
IN SITU VITRIFICATION
OZONATION
SOIL WASHING
SOLVENT RECOVERY
STRIPPING
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
BIODEGRADATION-NOS
CATALYSIS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
CRYSTALLIZATION
IN SITU SOIL FLUSHING
INCINERATION
ION EXCHANGE
LIQUID-LIQUID EXTRACTION
LOU TEMP THERMAL STRIPPING
NEUTRALIZATION
OZONATION
REVERSE OSMOSIS
SOLVENT RECOVERY
STABILIZATION
STRIPPING
VITRIFICATION
WET AIR OXIDATION
INCINERATION
ACTIVATED SLUDGE
AEROBIC BIOLOGICAL
BIODEGRADATI ON -COMPOST I NO
BIODEGRADATION-SLURRY  PHASE
BIODEGRADATION-SOLID PHASE
CHEMICAL TREATMENT
IN SITU BIODEGRADATION
SOIL WASHING
ACTIVATED SLUDGE
ADSORPTION
IN SITU BIODEGRADATION
STRIPPING
ACTIVATED SLUDGE
ADSORPTION
ADSORPTION
CHEMICAL OXIDATION
                                                 IV-  78

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
TREATMENT TECHNOLOGY
PESTICIDES
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                   I IT RESEARCH INST
                                    I IT RESEARCH INST
                                    I IT RESEARCH INST
                                    IT CORPORATION
                                    IT CORPORATION
                                    IT CORPORATION
                                    IT CORPORATION
                                    IT CORPORATION
                                    IT CORPORATION
                                   KIBER ASSOCIATES,  INC.
                                   KIBER ASSOCIATES,  INC.
                                   KIBER ASSOCIATES,  INC.
                                   O'BRIEN  AND GERE ENGINEERS,  INC.
                                   O'BRIEN  AND GERE ENGINEERS,  INC.
                                   OHM CORPORATION
                                   OHM CORPORATION
                                    OHM CORPORATION
                                    OHM CORPORATION
                                    OHM CORPORATION
                                   OHM CORPORATION
                                    OHM CORPORATION
                                    OHM CORPORATION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL PRECIPITATION
COAGULATION/FLOCCULATI ON
COAGULATION/FLOCCULATI ON
LOW TEMP THERMAL STRIPPING
STABILIZATION/SOLIDIFICATION
STRIPPING
ACTIVATED CARBON
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
ADSORPTION
CATALYSIS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
CRYSTALLIZATION
FILTRATION
IN SITU RADIO FREQUENCY  HEAT IN
IN SITU SOIL FLUSHING
IN SITU VACUUM & STEAM EXTRACT
ION EXCHANGE
ION EXCHANGE
LOU TEMP THERMAL STRIPPING
OZONATION
SOIL WASHING
SOLVENT RECOVERY
STABILIZATION/SOLIDIFICATION
STRIPPING
UV/OZONATION
CATALYSIS
CHEMICAL REDUCTION
LOW TEMP THERMAL STRIPPING
STABILIZATION/SOLIDIFICATION
STRIPPING
WET AIR OXIDATION
STABILIZATION/SOLIDIFICATION
STABILIZATION/SOLIDIFICATION
STABILIZATION/SOLIDIFICATION
ACTIVATED  CARBON
ADSORPTION
ACTIVATED  CARBON
ACTIVATED  SLUDGE
ADSORPTION
AEROBIC  BIOLOGICAL
ANAEROBIC  BIOLOGICAL
BIODEGRADATION-NOS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
                                                 IV- 79

-------
CONTAMINANT GROUP
                                TABLE # 4 (CONTINUED)

                                   COMPANY NAME
TREATMENT TECHNOLOGY
PESTICIDES
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   PETROLEUM  TESTING SERVICE,  INC.
                                   RADIAN  CORPORATION
                                   RADIAN  CORPORATION
                                   RADIAN  CORPORATION
                                   RADIAN  CORPORATION
                                   RADIAN  CORPORATION
                                   RADIAN  CORPORATION
                                   RADIAN  CORPORATION
                                   RADIAN  CORPORATION
                                   RADIAN  CORPORATION
                                   RADIAN  CORPORATION
                                   RADIAN  CORPORATION
                                   RADIAN  CORPORATION
                                   RADIAN  CORPORATION
                                   RADIAN  CORPORATION
                                   REMEDIATION  TECHNOLOGIES
                                   REMEDIATION  TECHNOLOGIES
                                   REMEDIATION  TECHNOLOGIES
                                   REMEDIATION  TECHNOLOGIES
                                   RMC ENV &  ANALYTICAL  LABORATORIES
                                   RMC ENV &  ANALYTICAL  LABORATORIES
                                   RMC ENV &  ANALYTICAL  LABORATORIES
                                   RMC ENV &  ANALYTICAL  LABORATORIES
                                   RMC ENV &  ANALYTICAL  LABORATORIES
                                   RMC ENV &  ANALYTICAL  LABORATORIES
                                   RMC ENV &  ANALYTICAL  LABORATORIES
                                   ROY F.  UESTON,  INC.
                                   ROY F.  WESTON,  INC.
                                   ROY f.  WESTON,  INC.
                                   ROY F.  UESTON,  INC.
                                   ROY F.  UESTON,  INC.
                                   ROY F.  UESTON,  INC.
                                   ROY F.  UESTON,  INC.
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
CRYSTALLIZATION
DEUATERING
IN SITU BIOOEGRADATION
IN SITU BIOOEGRADATION
IN SITU SOIL FLUSHING
IN SITU VACUUM & STEAM EXTRACT
INCINERATION
ION EXCHANGE
LOU TEMP THERMAL STRIPPING
NEUTRALIZATION
OIL-UATER SEPARATION
SOIL UASHING
SOLVENT RECOVERY
STABILIZATION/SOLIDIFICATION
STRIPPING
THERMAL COMBUSTION
IN SITU VACUUM & STEAM EXTRACT
ACTIVATED CARBON
ACTIVATED SLUDGE
ANAEROBIC BIOLOGICAL
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHLORINATION
ELECTROOIALYSIS
INCINERATION
ION EXCHANGE
OZONATION
REVERSE OSMOSIS
STABILIZATION/SOLIDIFICATION
STRIPPING
IN SITU BIOOEGRADATION
IN SITU SOIL  FLUSHING
IN SITU VACUUM & STEAM EXTRACT
STABILIZATION/SOLIDIFICATION
CHEMICAL EXTRACTION
CHEMICAL TREATMENT
IN SITU VACUUM & STEAM EXTRACT
IN SITU VITRIFICATION
INCINERATION
SOIL UASHING
STABILIZATION/SOLIDIFICATION
ACTIVATED CARBON
ACTIVATED SLUDGE
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
BIOOEGRADATION-COMPOST ING
BIOOEGRADATION-SLURRY PHASE
BIOOEGRADATION-SOLID PHASE
                                                 IV- 80

-------
CONTAMINANT GROUP
                                TABLE # 4 (CONTINUED)

                                   COMPANY NAME
TREATMENT TECHNOLOGY
PESTICIDES
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   S-CUBED
                                   SOUTHERN RESEARCH  INSTITUTE
                                   THORNE ENVIRONMENTAL,  INC.
                                   THORNE ENVIRONMENTAL,  INC.
                                   THORNE ENVIRONMENTAL,  INC.
                                   THORNE ENVIRONMENTAL,  INC.
                                   THORNE ENVIRONMENTAL,  INC.
                                   TREATEK,  INC.
                                   TREATEK,  INC.
                                   TREATEK,  INC.
                                   TREATEK,  INC.
                                   TREATEK,  INC.
                                   ULTROX  INTERNATIONAL
                                   ULTROX  INTERNATIONAL
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   VERSAR  INC.
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
CENTRIFUGATION
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
COAGULATION/F LOCCULATION
FILTRATION
FILTRATION
FLOTATION THICKENING
GRAVITY THICKENING
IN SITU 8IOOEGRADATION
IN SITU RADIO FREQUENCY HEATIN
IN SITU SOIL FLUSHING
IN SITU VACUUM & STEAM EXTRACT
INCINERATION
ION EXCHANGE
LOU TEMP THERMAL STRIPPING
NEUTRALIZATION
OZONATION
SEDIMENTATION
SOIL UASHING
STABILIZATION/SOLIDIFICATION
STRIPPING
LIQUID-LIQUID EXTRACTION
IN SITU BIODEGRADATION
BIODEGRADATION-SLURRY PHASE
BIODEGRADATION-SOLID PHASE
IN SITU BIODEGRADATION
IN SITU SOIL  FLUSHING
UV/DEEP TREATMENT
ADSORPTION
AEROBIC BIOLOGICAL
CHEMICAL PRECIPITATION
SOIL UASHING
STRIPPING
UV/HYDROGEN PEROXIDE
UV/OZONATION
ANAEROBIC  BIOLOGICAL
 INCINERATION
 ION  EXCHANGE
LIQUID-LIQUID EXTRACTION
NEUTRALIZATION
REVERSE  OSMOSIS
STABILIZATION/SOLIDIFICATION
ACTIVATED  CARBON
ACTIVATED  SLUDGE
BIODEGRADATION-NOS
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
REVERSE  OSMOSIS
STABILIZATION/SOLIDIFICATION
                                                 IV- 81

-------
CONTAMINANT GROUP
                                TABLE if 4 (CONTINUED)

                                   COMPANY NAME
                                             TREATMENT TECHNOLOGY
PESTICIDES
RADIOACTIVE MATERIALS
AEA TECHNOLOGY
AEA TECHNOLOGY
AEA TECHNOLOGY
AEA TECHNOLOGY
AEA TECHNOLOGY
AEA TECHNOLOGY
AEA TECHNOLOGY
AEA TECHNOLOGY
AEA TECHNOLOGY
AUC INCORPORATED
DIVERSIFIED ENGINEERING, INC.
DIVERSIFIED ENGINEERING, INC.
ENWRIGHT ENVIRONMENTAL, INC.
ENWRIGHT ENVIRONMENTAL, INC.
ENWRIGHT ENVIRONMENTAL, INC.
ENURIGHT ENVIRONMENTAL, INC.
ENURIGHT ENVIRONMENTAL, INC.
ENWRIGHT ENVIRONMENTAL, INC.
ENWRIGHT ENVIRONMENTAL, INC.
ENWRIGHT ENVIRONMENTAL, INC.
ENWRIGHT ENVIRONMENTAL, INC.
ENWRIGHT ENVIRONMENTAL, INC.
ENWRIGHT ENVIRONMENTAL, INC.
ENWRIGHT ENVIRONMENTAL, INC.
ENWRIGHT ENVIRONMENTAL, INC.
GENERAL PHYSICS CORPORATION
GENERAL PHYSICS CORPORATION
I IT RESEARCH  INST
I IT RESEARCH  INST
I IT RESEARCH  INST
I IT RESEARCH  INST
I IT RESEARCH  INST
I IT RESEARCH  INST
I IT RESEARCH  INST
I IT RESEARCH  INST
I IT RESEARCH  INST
I IT RESEARCH  INST
I IT RESEARCH  INST
I IT RESEARCH  INST
I IT RESEARCH  INST
I IT RESEARCH  INST
I IT RESEARCH  INST
I IT RESEARCH  INST
I IT RESEARCH  INST
I IT RESEARCH  INST
I IT RESEARCH  INST
I IT RESEARCH  INST
I IT RESEARCH  INST
I IT RESEARCH  INST
IT CORPORATION
IT CORPORATION
IT CORPORATION
AEROBIC BIOLOGICAL
CHEMICAL PRECIPITATION
CHEMICAL TREATMENT
INCINERATION
ION EXCHANGE
STABILIZATION/SOLIDIFICATION
ULTRAFILTRATION
VITRIFICATION
WASHING
PHYSICAL SEPARATION
INCINERATION
VITRIFICATION
ACTIVATED CARBON
ACTIVATED SLUDGE
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
B10DEGRADATION-SLURRY PHASE
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
LIQUID-LIQUID EXTRACTION
NEUTRALIZATION
OZONATION
STABILIZATION/SOLIDIFICATION
STRIPPING
STABILIZATION/SOLIDIFICATION
VITRIFICATION
ACTIVATED CARBON
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
ADSORPTION
CATALYSIS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHLORINATION
CRYSTALLIZATION
IN  SITU RADIO  FREQUENCY  HEATIN
IN  SITU SOIL FLUSHING
IN  SITU VACUUM &  STEAM EXTRACT
ION EXCHANGE
ION EXCHANGE
LOW TEMP THERMAL  STRIPPING
OZONATION
SOLVENT RECOVERY
STRIPPING
UV/OZONATION
CHEMICAL PRECIPITATION
ION EXCHANGE
LOW TEMP THERMAL  STRIPPING
                                                 IV-  82

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
RADIOACTIVE MATERIALS
                                   IT CORPORATION
                                   IT CORPORATION
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   THORNE ENVIRONMENTAL, INC.
                                   WESTERN RESEARCH INSTITUTE
                                   WESTERN RESEARCH INSTITUTE
                                   WESTINGHOUSE SCIENCE & TECHNOLOGY
                                    REVERSE OSMOSIS
                                    VITRIFICATION
                                    ACTIVATED CARBON
                                    ADSORPTION
                                    CHLORINATION
                                    CRYSTALLIZATION
                                    ELECTROOIALYSIS
                                    ION EXCHANGE
                                    NEUTRALIZATION
                                    NEUTRALIZATION
                                    OZONATION
                                    STRIPPING
                                    BIODEGRADATION-SLURRY  PHASE
                                    CHEMICAL PRECIPITATION
                                    CHEMICAL REDUCTION
                                    SOIL WASHING
REDUCERS
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   E M & C
                                   E M & C
                                   E M & C
                                   E M & C
                                   E M & C
                                   E M & C
                                   E M & C
                                   E M & C
                                   E M & C
                                   E M & C
                                   E M & C
                                   E M & C
                                   E M & C
ENGINEERING
ENGINEERING
ENGINEERING
ENGINEERING
ENGINEERING
ENGINEERING
ENGINEERING
ENGINEERING
ENGINEERING
ENGINEERING
ENGINEERING
ENGINEERING
ENGINEERING
ASSOCIATES
ASSOCIATES
ASSOCIATES
ASSOCIATES
ASSOCIATES
ASSOCIATES
ASSOCIATES
ASSOCIATES
ASSOCIATES
ASSOCIATES
ASSOCIATES
ASSOCIATES
ASSOCIATES
ACTIVATED CARBON
ADSORPTION
CATALYSIS
CENTRIFUGATION
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CRYSTALLIZATION
FILTRATION
IN SITU VACUUM & STEAM EXTRACT
INCINERATION
INCINERATION
LIQUID-LIQUID EXTRACTION
LOU TEMP THERMAL STRIPPING
NEUTRALIZATION
SOLVENT RECOVERY
STABILIZATION/SOLIDIFICATION
STRIPPING
THERMAL PROCESSING
WET AIR OXIDATION
WET AIR OXIDATION
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
BIOOEGRADATION-NOS
CATALYSIS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
CRYSTALLIZATION
                                                 IV- 83

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
REDUCERS
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   ENERGY&ENVIRONMENTAL RESEARCH CORP.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   ENSOTECH, INC.
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                   HUNTER SERVICES,  INC.
                                    INTERNATIONAL PROCESS RESEARCH  CORP
                                    INTERNATIONAL PROCESS RESEARCH  CORP
                                    INTERNATIONAL PROCESS RESEARCH  CORP
                                    INTERNATIONAL PROCESS RESEARCH  CORP
IN SITU SOIL FLUSHING
INCINERATION
ION EXCHANGE
LIQUID-LIQUID EXTRACTION
LOW TEMP THERMAL STRIPPING
NEUTRALIZATION
OZONATION
REVERSE OSMOSIS
SOLVENT RECOVERY
STABILIZATION
STRIPPING
VITRIFICATION
WET AIR OXIDATION
INCINERATION
ACTIVATED SLUDGE
ADSORPTION
8IOOEGRADATION-NOS
BIODEGRADATION-NOS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
FILTRATION
IN SITU BIOOEGRADATION
IN SITU SOIL FLUSHING
IN SITU VACUUM & STEAM EXTRACT
INCINERATION
ION EXCHANGE
LOW TEMP THERMAL STRIPPING
NEUTRALIZATION
SOIL WASHING
STABILIZATION/SOLIDIFICATION
STABILIZATION/SOLIDIFICATION
STRIPPING
VITRIFICATION
ACTIVATED CARBON
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
CHEMICAL OXIDATION
ION EXCHANGE
NEUTRALIZATION
OZONATION
CHLORINATION
LOW TEMP THERMAL STRIPPING
NEUTRALIZATION
OZONATION
STRIPPING
ACTIVATED CARBON
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
                                                 IV- 84

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
REDUCERS
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   INTERNATIONAL PROCESS RESEARCH CORP
                                   IT  CORPORATION
                                   HCNAMEE  ADVANCED  TECHNOLOGY,  INC.
                                   MCNAMEE  ADVANCED  TECHNOLOGY,  INC.
                                   MCNAMEE  ADVANCED  TECHNOLOGY,  INC.
                                   MCNAMEE  ADVANCED  TECHNOLOGY,  INC.
                                   MCNAMEE  ADVANCED  TECHNOLOGY,  INC.
                                   MCNAMEE  ADVANCED  TECHNOLOGY,  INC.
                                   MCNAMEE  ADVANCED  TECHNOLOGY,  INC.
                                   MCNAMEE  ADVANCED  TECHNOLOGY,  INC.
                                   MCNAMEE  ADVANCED  TECHNOLOGY,  INC.
                                   MCNAMEE  ADVANCED  TECHNOLOGY,  INC.
                                   MCNAMEE  ADVANCED  TECHNOLOGY,  INC.
                                   MCNAMEE  ADVANCED  TECHNOLOGY,  INC.
                                   MCNAMEE  ADVANCED  TECHNOLOGY,  INC.
                                   MCNAMEE  ADVANCED  TECHNOLOGY,  INC.
                                   MCNAMEE  ADVANCED  TECHNOLOGY,  INC.
                                   MCNAMEE  ADVANCED  TECHNOLOGY,  INC.
                                   MCNAMEE  ADVANCED  TECHNOLOGY,  INC.
                                   MCNAMEE  ADVANCED  TECHNOLOGY,  INC.
                                   MCNAMEE  ADVANCED  TECHNOLOGY,  INC.
                                   MCNAMEE  ADVANCED  TECHNOLOGY,  INC.
                                    MCNAMEE  ADVANCED  TECHNOLOGY,  INC.
                                    MCNAMEE  ADVANCED  TECHNOLOGY,  INC.
                                    MCNAMEE  ADVANCED  TECHNOLOGY,  INC.
                                    MCNAMEE  ADVANCED  TECHNOLOGY,  INC.
                                    MCNAMEE ADVANCED  TECHNOLOGY,  INC.
                                    MCNAMEE ADVANCED  TECHNOLOGY,  INC.
                                    MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                    MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                    MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                    MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                    HCNAMEE ADVANCED TECHNOLOGY,  INC.
                                    MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                    MCNAMEE ADVANCED TECHNOLOGY,  INC.
BIODEGRADATION-NOS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLOR I NAT ION
CRYSTALLIZATION
IN SITU BIODEGRADATION
INCINERATION
ION EXCHANGE
LIQUID-LIQUID EXTRACTION
NEUTRALIZATION
OZONATION
SOIL WASHING
SOLVENT RECOVERY
STABILIZATION/SOLIDIFICATION
STRIPPING
WET AIR OXIDATION
CHEMICAL OXIDATION
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
BIODEGRADATION-COMPOST ING
BIOOEGRADATION-SLURRY PHASE
BIODEGRADATION-SOLID PHASE
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
COAGULATION/FLOCCULATION
CRYSTALLIZATION
DEWATERING
 FILTRATION
 INCINERATION
 ION EXCHANGE
 LIQUID-LIQUID EXTRACTION
 NEUTRALIZATION
OZONATION
 PACT
 REVERSE OSMOSIS
 SOLVENT RECOVERY
 STABILIZATION
 STABILIZATION/SOLIDIFICATION
 STRIPPING
 THERMAL COMBUSTION
 UV/OXIDATION
 VITRIFICATION
 WET AIR OXIDATION
                                                 IV- 85

-------
                                TABLE * 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
REDUCERS
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   O'BRIEN AND GERE ENGINEERS,  INC.
                                   O'BRIEN AND GERE ENGINEERS,  INC.
                                   O'BRIEN AND GERE ENGINEERS,  INC.
                                   O'BRIEN AND GERE ENGINEERS,  INC.
                                   O'BRIEN AND GERE ENGINEERS,  INC.
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RODNEY KINNEY ASSOCIATES
                                   RODNEY KINNEY ASSOCIATES
                                   RODNEY KINNEY ASSOCIATES
                                   RODNEY KINNEY ASSOCIATES
                                   RODNEY KINNEY ASSOCIATES
                                   RODNEY KINNEY ASSOCIATES
                                   RODNEY KINNEY ASSOCIATES
                                   THORNE ENVIRONMENTAL, INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   ZENON ENVIRONMENTAL
                                   ZENON ENVIRONMENTAL
WET AIR OXIDATION
ACTIVATED SLUDGE
AEROBIC BIOLOGICAL
CHEMICAL OXIDATION
CHLORI NAT ION
OZONATION
ACTIVATED CARBON
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHLORINATION
ELECTRODIALYSIS
ION EXCHANGE
OZONATION
REVERSE OSMOSIS
STABILIZATION/SOLIDIFICATION
STRIPPING
ACTIVATED CARBON
ADSORPTION
CHLORINATION
CRYSTALLIZATION
ELECTROOIALYSIS
ION EXCHANGE
NEUTRALIZATION
NEUTRALIZATION
STRIPPING
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHLORINATION
STABILIZATION/SOLIDIFICATION
UV/DEEP TREATMENT
ACTIVATED SLUDGE
ADSORPTION
CHEMICAL EXTRACTION
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
VITRIFICATION
WET AIR OXIDATION
ACTIVATED CARBON
CHEMICAL REDUCTION
VOLATILE METALS
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
ACTIVATED CARBON
ADSORPTION
CATALYSIS
CENTRIFUGATION
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
                                                IV- 86

-------
CONTAMINANT GROUP
                                TABLE # 4 (CONTINUED)

                                   COMPANY NAME
                        TREATMENT TECHNOLOGY
VOLATILE METALS
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   AAA CSI
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   DETOX, INC.
                                   E  M & C  ENGINEERING
                                   E  M & C  ENGINEERING
                                   E  M & C  ENGINEERING
                                   E  M & C  ENGINEERING
                                   E  M & C  ENGINEERING
                                   E  M & C  ENGINEERING
                                   E  M & C  ENGINEERING
                                   E  M & C  ENGINEERING
                                   E  M & C  ENGINEERING
                                   E  M & C  ENGINEERING
                                   E  M & C  ENGINEERING
                                   E  M & C  ENGINEERING
                                   E  M & C  ENGINEERING
                                   E  M & C  ENGINEERING
                                   E  M & C  ENGINEERING
                                   E  M & C  ENGINEERING
                                   E  M & C  ENGINEERING
ASSOCIATES
ASSOCIATES
ASSOCIATES
ASSOCIATES
ASSOCIATES
ASSOCIATES
ASSOCIATES
ASSOCIATES
ASSOCIATES
ASSOCIATES
ASSOCIATES
ASSOCIATES
ASSOCIATES
ASSOCIATES
ASSOCIATES
ASSOCIATES
ASSOCIATES
CHEMICAL TREATMENT
CRYSTALLIZATION
FILTRATION
IN SITU VACUUM & STEAM EXTRACT
INCINERATION
INCINERATION
LIQUID-LIQUID EXTRACTION
LOW TEMP THERMAL STRIPPING
NEUTRALIZATION
SOLVENT RECOVERY
STABILIZATION/SOLIDIFICATION
STRIPPING
THERMAL PROCESSING
WET AIR OXIDATION
WET AIR OXIDATION
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
ANAEROBIC BIOLOGICAL
BIOOEGRAOATION-COMPOST ING
BIODEGRADATION-SLURRY PHASE
BIODEGRADATION-SOLID PHASE
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
IN SITU BIOOEGRADATION
IN SITU SOIL  FLUSHING
IN SITU VACUUM &  STEAM EXTRACT
IN SITU VITRIFICATION
OZONATION
SOIL WASHING
SOLVENT RECOVERY
STRIPPING
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
BICOEGRADATION-NOS
CATALYSIS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
CRYSTALLIZATION
 IN  SITU SOIL  FLUSHING
 INCINERATION
 ION  EXCHANGE
                                                 IV- 87

-------
CONTAMINANT GROUP
TABLE # 4 (CONTINUED)

   COMPANY NAME
TREATMENT TECHNOLOGY
VOLATILE METALS
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   E M & C ENGINEERING ASSOCIATES
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   GENERAL PHYSICS CORPORATION
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   HUNTER SERVICES, INC.
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   IIT RESEARCH  INST
                                   I IT RESEARCH  INST
                                   I IT RESEARCH  INST
                                                LIQUID-LIQUID EXTRACTION
                                                LOU TEMP THERMAL STRIPPING
                                                NEUTRALIZATION
                                                OZONATION
                                                REVERSE OSMOSIS
                                                SOLVENT RECOVERY
                                                STABILIZATION
                                                STRIPPING
                                                VITRIFICATION
                                                UET AIR OXIDATION
                                                ADSORPTION
                                                CATALYSIS
                                                CHEMICAL PRECIPITATION
                                                CHEMICAL TREATMENT
                                                ION EXCHANGE
                                                LIQUID-LIQUID EXTRACTION
                                                NEUTRALIZATION
                                                STABILIZATION/SOLIDIFICATION
                                                ACTIVATED SLUDGE
                                                ADSORPTION
                                                ADSORPTION
                                                CHEMICAL OXIDATION
                                                CHEMICAL OXIDATION
                                                CHEMICAL PRECIPITATION
                                                CHEMICAL PRECIPITATION
                                                COAGULATION/FLOCCULAT I ON
                                                COAGULATION/FLOCCULATI ON
                                                STABILIZATION/SOLIDIFICATION
                                                ACTIVATED CARBON
                                                ACTIVATED CARBON
                                                ACTIVATED SLUDGE
                                                ADSORPTION
                                                ADSORPTION
                                                CATALYSIS
                                                CHEMICAL EXTRACTION
                                                CHEMICAL OXIDATION
                                                CHEMICAL PRECIPITATION
                                                CHEMICAL REDUCTION
                                                CHEMICAL TREATMENT
                                                CHLORINATION
                                                CRYSTALLIZATION
                                                FILTRATION
                                                IN SITU  RADIO FREQUENCY HEATIN
                                                IN SITU  SOIL FLUSHING
                                                IN SITU  VACUUM & STEAM EXTRACT
                                                ION EXCHANGE
                                                ION EXCHANGE
                                                LOU TEMP THERMAL STRIPPING
                                                OZONATION
                                                SOIL WASHING
                                                SOLVENT  RECOVERY
                                                STABILIZATION/SOLIDIFICATION
                                                STRIPPING
                                                 IV-  88

-------
CONTAMINANT GROUP
                                TABLE # 4 (CONTINUED)

                                   COMPANY NAME
TREATMENT TECHNOLOGY
VOLATILE METALS
                                   I IT RESEARCH INST
                                   IT CORPORATION
                                   JACOBS ENGINEERING GROUP, INC.
                                   JACOBS ENGINEERING GROUP, INC.
                                   JACOBS ENGINEERING GROUP, INC.
                                   KIBER ASSOCIATES, INC.
                                   KIBER ASSOCIATES, INC.
                                   KIBER ASSOCIATES, INC.
                                   KIBER ASSOCIATES, INC.
                                   KIBER ASSOCIATES, INC.
                                   KSE, INC.
                                   KSE, INC.
                                   KSE, INC.
                                   KSE, INC.
                                   KSE, INC.
                                   KSE, INC.
                                   KSE, INC.
                                   MAECORP, INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   MCNAMEE ADVANCED TECHNOLOGY,  INC.
                                   O'BRIEN AND GERE ENGINEERS,  INC.
UV/OZONATION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
PHYSICAL SEPARATION
STABILIZATION/SOLIDIFICATION
ACTIVATED CARBON
CHEMICAL PRECIPITATION
STABILIZATION/SOLIDIFICATION
STABILIZATION/SOLIDIFICATION
STABILIZATION/SOLIDIFICATION
ACTIVATED CARBON
ADSORPTION
CATALYSIS
CHEMICAL EXTRACTION
LOW TEMP THERMAL STRIPPING
STRIPPING
ULTRAFILTRATION
STRIPPING
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
BIODEGRADATION-COMPOSTING
BIOOEGRADATION-SLURRY PHASE
BIODEGRADATION-SOLID PHASE
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
COAGULATION/F LOCCULAT1ON
CRYSTALLIZATION
DEWATERING
FILTRATION
INCINERATION
ION EXCHANGE
LIQUID-LIQUID EXTRACTION
NEUTRALIZATION
OZONATION
PACT
REVERSE OSMOSIS
SOLVENT RECOVERY
STABILIZATION
STABILIZATION/SOLIDIFICATION
STRIPPING
THERMAL COMBUSTION
UV/OXIDATION
VITRIFICATION
WET AIR OXIDATION
WET AIR OXIDATION
ADSORPTION      '
                                                 IV-  89

-------
CONTAMINANT GROUP
                                TABLE * 4 (CONTINUED)

                                   COMPANY NAME
TREATMENT TECHNOLOGY
VOLATILE METALS
                                   O'BRIEN AND GERE ENGINEERS, INC.
                                   O'BRIEN AND GERE ENGINEERS, INC.
                                   O'BRIEN AND GERE ENGINEERS, INC.
                                   O'BRIEN AND GERE ENGINEERS, INC.
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   OHM CORPORATION
                                   PITTSBURGH MIN&ENV.TECH.,  INC.
                                   PITTSBURGH MIN&ENV.TECH.,  INC.
                                   PITTSBURGH MIN&ENV.TECH.,  INC.
                                   PITTSBURGH MIN&ENV.TECH.,  INC.
                                   PYROGENICS, INC.
                                   PYROGENICS, INC.
                                   PYROGENICS, INC.
                                   PYROGENICS, INC.
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                   RADIAN CORPORATION
                                    RADIAN CORPORATION
                                    RADIAN CORPORATION
                                    RADIAN CORPORATION
                                    RADIAN CORPORATION
                                    RADIAN CORPORATION
                                    REMEDIATION TECHNOLOGIES
ION EXCHANGE
NEUTRALIZATION
SOIL WASHING
STABILIZATION/SOLIDIFICATION
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
BIODEGRADATION-NOS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
CRYSTALLIZATION
DEUATERING
IN  SITU BIODEGRADATION
IN  SITU BIODEGRADATION
IN  SITU SOIL  FLUSHING
IN  SITU VACUUM &  STEAM EXTRACT
INCINERATION
ION EXCHANGE
LOW TEMP THERMAL  STRIPPING
NEUTRALIZATION
OIL-WATER SEPARATION
SOIL WASHING
SOLVENT RECOVERY
STABILIZATION/SOLIDIFICATION
STRIPPING
THERMAL COMBUSTION
CHEMICAL EXTRACTION
CHEMICAL PRECIPITATION
PHYSICAL SEPARATION
SOIL WASHING
DEWATERING
STABILIZATION/SOLIDIFICATION
THERMAL DESTRUCTION
VITRIFICATION
ACTIVATED  CARBON
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHLORINATION
ELECTROOIALYSIS
 INCINERATION
 ION EXCHANGE
OZONATION
 REVERSE  OSMOSIS
 STABILIZATION/SOLIDIFICATION
 STRIPPING
 CHEMICAL EXTRACTION
                                                 IV- 90

-------
CONTAMINANT GROUP
                                TABLE # 4 (CONTINUED)

                                   COMPANY NAME
                                            TREATMENT TECHNOLOGY
VOLATILE METALS
                                   REMEDIATION TECHNOLOGIES
                                   REMEDIATION TECHNOLOGIES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   RIVER OAK ASSOCIATES
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   ROY F. UESTON, INC.
                                   THORNE ENVIRONMENTAL,  INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                   VERSAR INC.
                                            IN SITU BIOOEGRADATION
                                            SOIL UASHING
                                            ACTIVATED CARBON
                                            ADSORPTION
                                            CHLORINATION
                                            CRYSTALLIZATION
                                            ELECTRODIALYSIS
                                            ION EXCHANGE
                                            NEUTRALIZATION
                                            NEUTRALIZATION
                                            OZONATION
                                            STRIPPING
                                            IN SITU RADIO  FREQUENCY  HEAT IN
                                            INCINERATION
                                            LOU TEMP THERMAL  STRIPPING
                                            PHYSICAL TREATMENTS
                                            THERMAL TREATMENT-NOS
                                            STABILIZATION/SOLIDIFICATION
                                            ACTIVATED SLUDGE
                                            ADSORPTION
                                            CHEMICAL EXTRACTION
                                            CHEMICAL EXTRACTION
                                            CHEMICAL OXIDATION
                                            CHEMICAL PRECIPITATION
                                             INCINERATION
                                            PACT
                                            REVERSE OSMOSIS
                                            STRIPPING
                                            VITRIFICATION
                                            UET  AIR OXIDATION
 NOT  SPECIFIED
AEA TECHNOLOGY
AEA TECHNOLOGY
AEA TECHNOLOGY
ANDCO ENVIRONMENTAL PROCESSES, INC.
ANDCO ENVIRONMENTAL PROCESSES, INC.
ANDCO ENVIRONMENTAL PROCESSES, INC.
ANDCO ENVIRONMENTAL PROCESSES, INC.
ANDCO ENVIRONMENTAL PROCESSES, INC.
ANDCO ENVIRONMENTAL PROCESSES, INC.
ANDCO ENVIRONMENTAL PROCESSES, INC.
BIOSCIENCE MANAGEMENT, INC.
CAMBRIDGE SCIENTIFIC, INC.
CHEMENCO, INC.
CHEMENCO, INC.
CHEMENCO, INC.
CHEMENCO, INC.
CHEMENCO, INC.
CHEMENCO, INC.
CHEMENCO, INC.
CHEMENCO, INC.
CHEMENCO, INC.
CHEMENCO, INC.
                                                                                 CRYSTALLIZATION
                                                                                 LIQUID-LIQUID  EXTRACTION
                                                                                 LIQUID-SOLID SEPARATION
                                                                                 ACTIVATED  CARBON
                                                                                 CHEMICAL OXIDATION
                                                                                 FILTRATION
                                                                                 ION  EXCHANGE
                                                                                 STABILIZATION
                                                                                 STABILIZATION/SOLIDIFICATION
                                                                                 STRIPPING
                                                                                 BIODEGRADATION-NOS
                                                                                 CHEMICAL OXIDATION
                                                                                 ACTIVATED  CARBON
                                                                                 ACTIVATED  SLUDGE
                                                                                 ADSORPTION
                                                                                 AEROBIC BIOLOGICAL
                                                                                 ANAEROBIC  BIOLOGICAL
                                                                                 BIOOEGRADATION-NOS
                                                                                 CATALYSIS
                                                                                 CHEMICAL EXTRACTION
                                                                                 CHEMICAL PRECIPITATION
                                                                                 CHEMICAL TREATMENT
                                                 IV- 91

-------
                                TABLE # A (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
NOT SPECIFIED
                                   CHEMENCO. INC.
                                   CHEMENCO, INC.
                                   CHEMENCO, INC.
                                   CHEMENCO, INC.
                                   CHEMENCO, INC.
                                   CHEMENCO, INC.
                                   CHEMENCO, INC.
                                   CHEMENCO, INC.
                                   CHEMENCO, INC.
                                   CHEMENCO, INC.
                                   CHEMENCO, INC.
                                   CHEMENCO, INC.
                                   CHEMENCO, INC.
                                   CHEMENCO, INC.
                                   CHEMENCO, INC.
                                   CHEMFIX ENVIRONMENTAL SERVICES, INC
                                   CHEMFIX ENVIRONMENTAL SERVICES, INC
                                   COMBUSTION ENGINEERING, INC.
                                   COMBUSTION ENGINEERING, INC.
                                   COMBUSTION ENGINEERING, INC.
                                   COMBUSTION ENGINEERING, INC.
                                   COMBUSTION ENGINEERING, INC.
                                   COMBUSTION ENGINEERING, INC.
                                   COMBUSTION ENGINEERING, INC.
                                   COMBUSTION ENGINEERING, INC.
                                   COMBUSTION ENGINEERING, INC.
                                   COMBUSTION ENGINEERING, INC.
                                   COMBUSTION ENGINEERING, INC.
                                   COMBUSTION ENGINEERING, INC.
                                   COMBUSTION ENGINEERING, INC.
                                   COMBUSTION ENGINEERING, INC.
                                   DIVERSIFIED ENGINEERING,  INC.
                                   DIVERSIFIED ENGINEERING,  INC.
                                   DIVERSIFIED ENGINEERING,  INC.
                                   DIVERSIFIED ENGINEERING,  INC.
                                   DIVERSIFIED ENGINEERING,  INC.
                                   DIVERSIFIED ENGINEERING,  INC.
                                   EARTH  TECHNOLOGY CORP.
                                   EARTH  TECHNOLOGY CORP.
                                   EARTH  TECHNOLOGY CORP.
                                   EARTH  TECHNOLOGY CORP.
                                   EARTH  TECHNOLOGY CORP.
                                   EARTH  TECHNOLOGY CORP.
                                   EARTH  TECHNOLOGY CORP.
                                   EARTH  TECHNOLOGY CORP.
                                   EARTH  TECHNOLOGY CORP.
                                   EARTH  TECHNOLOGY CORP.
                                   EARTH  TECHNOLOGY CORP.
                                   EARTH  TECHNOLOGY CORP.
                                   EARTH  TECHNOLOGY CORP.
                                   EARTH  TECHNOLOGY CORP.
                                   EARTH  TECHNOLOGY CORP.
                                   EARTH  TECHNOLOGY CORP.
CRYSTALLIZATION
IN SITU VACUUM & STEAM EXTRACT
INCINERATION
INCINERATION
ION EXCHANGE
LIQUID-LIQUID EXTRACTION
LOU TEMP THERMAL STRIPPING
NEUTRALIZATION
OZONATION
REVERSE OSMOSIS
SOIL WASHING
SOLVENT RECOVERY
STABILIZATION/SOLIDIFICATION
STRIPPING
VITRIFICATION
FIXATION
STABILIZATION/SOLIDIFICATION
ACTIVATED CARBON
ADSORPTION
ADSORPTION
AEROBIC BIOLOGICAL
BIODEGRADATION-SLURRY PHASE
CHEMICAL DECHLORINATION
CHEMICAL DECHLORINATION
CHEMICAL EXTRACTION
CHEMICAL PRECIPITATION
IN SITU VACUUM & STEAM EXTRACT
INCINERATION
SOLIDIFICATION
THERMAL FIXATION
VITRIFICATION
ACTIVATED CARBON
ADSORPTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
STABILIZATION/SOLIDIFICATION
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
BIODEGRADATION-COMPOSTING
BIODEGRADATION-SOLID  PHASE
CHEMICAL EXTRACTION
CHEMICAL PRECIPITATION
CHEMICAL TREATMENT
CHLORINATION
ELECTRODIALYSIS
IN SITU SOIL  FLUSHING
IN SITU VACUUM & STEAM EXTRACT
INCINERATION
ION  EXCHANGE
LOU  TEMP THERMAL STRIPPING
NEUTRALIZATION
                                                 IV-  92

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
NOT SPECIFIED
                                   EARTH TECHNOLOGY CORP.
                                   EARTH TECHNOLOGY CORP.
                                   EARTH TECHNOLOGY CORP.
                                   EARTH TECHNOLOGY CORP.
                                   EARTH TECHNOLOGY CORP.
                                   ENRICO TECHNOLOGIES
                                   ENRICO TECHNOLOGIES
                                   ENSR - CELGENE
                                   ENSR - CELGENE
                                   ENSR - CELGENE
                                   ENSR - CELGENE
                                   ENSR - CELGENE
                                   ENSR - CELGENE
                                   ENSR - CELGENE
                                   FORMULA  ENVIRONMENTAL COMPANY
                                   FORMULA  ENVIRONMENTAL COMPANY
                                   GENERAL  PHYSICS CORPORATION
                                   GROUNDUATER  & ENVIRONMENTAL  SERVICE
                                   GROUNDUATER  & ENVIRONMENTAL  SERVICE
                                   GROUNDUATER  & ENVIRONMENTAL  SERVICE
                                   GROUNDUATER  & ENVIRONMENTAL  SERVICE
                                   GROUNDUATER  & ENVIRONMENTAL  SERVICE
                                   GROUNDUATER  & ENVIRONMENTAL  SERVICE
                                   GROUNDUATER  & ENVIRONMENTAL  SERVICE
                                   GROUNDUATER  & ENVIRONMENTAL  SERVICE
                                   GROUNDUATER  & ENVIRONMENTAL  SERVICE
                                   GROUNDUATER  & ENVIRONMENTAL  SERVICE
                                   GROUNDUATER  & ENVIRONMENTAL  SERVICE
                                   HARMON  ENVIRONMENTAL SERVICES,  INC.
                                   HARMON  ENVIRONMENTAL SERVICES,  INC.
                                   HARMON  ENVIRONMENTAL SERVICES,  INC.
                                   HARMON  ENVIRONMENTAL SERVICES,  INC.
                                   HAZANSUERS,  INC.
                                   HAZANSUERS,  INC.
                                   HAZCON  ENGINEERING,  INC.
                                    IT CORPORATION
                                    JACOBS  ENGINEERING GROUP,  INC.
                                   KEYSTONE ENVIRONMENTAL  RESOURCES
                                   KEYSTONE ENVIRONMENTAL  RESOURCES
                                   MAECORP, INC.
                                   MAECORP, INC.
                                   MAECORP, INC.
                                   MAECORP, INC.
                                   MAECORP, INC.
                                    MAECORP, INC.
                                    MAECORP, INC.
                                    MAECORP, INC.
                                    MAECORP, INC.
                                    MAECORP, INC.
                                    MAECORP, INC.
                                    MAECORP, INC.
                                    MAECORP, INC.
                                    MAECORP, INC.
OZONATION
REVERSE OSMOSIS
SOIL UASHING
STABILIZATION/SOLIDIFICATION
STRIPPING
CHEMICAL EXTRACTION
STABILIZATION/SOLIDIFICATION
ACTIVATED SLUDGE
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
BIODEGRADATION-COMPOSTING
BIODEGRADATION-SLURRY PHASE
BIODEGRADATION-SOLID PHASE
IN SITU BIODEGRADATION
BIODEGRADATION-COMPOSTING
CHEMICAL TREATMENT
CHLORINATION
ACTIVATED CARBON
ACTIVATED SLUDGE
BIODEGRADATION-NOS
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
IN SITU BIOOEGRADATION
IN SITU SOIL  FLUSHING
REVERSE OSMOSIS
SOIL UASHING
STRIPPING
BIODEGRADATION-NOS
CHEMICAL PRECIPITATION
CHEMICAL TREATMENT
NEUTRALIZATION
INCINERATION
STABILIZATION
STABILIZATION/SOLIDIFICATION
CRYSTALLIZATION
INCINERATION
UV/OXIDATION
UV/OZONATION
ACTIVATED  CARBON
CATALYSIS
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
CRYSTALLIZATION
 FILTRATION
 FREEZE CONCENTRATION
 IN SITU VACUUM &  STEAM EXTRACT
 ION EXCHANGE
 LIQUID-LIQUID EXTRACTION
 LOU TEMP THERMAL  STRIPPING
                                                 IV- 93

-------
                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
                                   COMPANY NAME
                                                                                TREATMENT  TECHNOLOGY
NOT SPECIFIED
                                   MAECORP,  INC.
                                   MAECORP,  INC.
                                   MAECORP,  INC.
                                   MAECORP,  INC.
                                   MAECORP,  INC.
                                   NATIONAL  SANITATION  FOUNDATION
                                   NATIONAL  SANITATION  FOUNDATION
                                   O'BRIEN AND GERE ENGINEERS,  INC.
                                   O'BRIEN AND GERE ENGINEERS,  INC.
                                   OGDEN ENVIRONMENTAL  SERVICES,  INC.
                                   POLYBAC CORPORATION
                                   RMT, INC.
                                   RMT, INC.
                                   RMT, INC.
                                   RMT, INC.
                                   RMT, INC.
                                   RMT, INC.
                                   RMT, INC.
                                   RMT, INC.
                                   RMT, INC.
                                   RMT, INC.
                                   RMT, INC.
                                   RMT, INC.
                                   RMT, INC.
                                   RMT, INC.
                                   RMT, INC.
                                   RMT, INC.
                                   RMT, INC.
                                   RMT, INC.
                                   RMT, INC.
                                   RMT, INC.
                                   RMT, INC.
                                   RMT, INC.
                                   RMT, INC.
                                   RMT, INC.
                                   RMT, INC.
                                   RMT, INC.
                                   RMT, INC.
                                   RMT, INC.
                                   RMT, INC.
                                   RMT, INC.
                                   RMT, INC.
                                   RMT, INC.
                                   RMT, INC.
                                   RMT, INC.
                                   RNK ENVIRONMENTAL, INC.
                                   RNK ENVIRONMENTAL, INC.
                                   RNK ENVIRONMENTAL, INC.
                                   RNK ENVIRONMENTAL, INC.
                                   RNK ENVIRONMENTAL, INC.
                                   RNK ENVIRONMENTAL, INC.
                                   RNK ENVIRONMENTAL, INC.
                                   RNK ENVIRONMENTAL, INC.
NEUTRALIZATION
SEDIMENTATION
SOLVENT RECOVERY
STABILIZATION/SOLIDIFICATION
VITRIFICATION
ACTIVATED CARBON
STRIPPING
LIQUID-LIQUID EXTRACTION
MIXED MEDIA FILTRATION
INCINERATION
IN SITU BIODEGRADATION
ACTIVATED CARBON
ACTIVATED SLUDGE
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
BIODEGRADATION-COMPOST ING
BIODEGRADATION-SLURRY PHASE
BIODEGRADATION-SOLID PHASE
CATALYSIS
CHEMICAL EXTRACTION
CHEMICAL OXIDATION
CHEMICAL PRECIPITATION
CHEMICAL REDUCTION
CHEMICAL TREATMENT
CHLORINATION
CRYSTALLIZATION
ELECTRODIALYSIS
IN SITU BIOOEGRADATION
IN SITU SOIL FLUSHING
IN SITU VACUUM & STEAM EXTRACT
INCINERATION
INCINERATION
ION EXCHANGE
LIQUID-LIQUID EXTRACTION
LOW TEMP THERMAL STRIPPING
NEUTRALIZATION
OZONATION
REVERSE OSMOSIS
SOIL WASHING
SOLVENT RECOVERY
STABILIZATION/SOLIDIFICATION
STRIPPING
VITRIFICATION
UET AIR OXIDATION
ACTIVATED CARBON
ACTIVATED SLUDGE
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
BIODEGRADATION-COMPOST ING
BIODEGRADATION-NOS
BI ODEGRADATION-NOS
CHEMICAL OXIDATION
                                                IV- 94

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                                TABLE # 4 (CONTINUED)
CONTAMINANT GROUP
COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
NOT SPECIFIED
                                   RNK ENVIRONMENTAL, INC.
                                   RNK ENVIRONMENTAL, INC.
                                   RNK ENVIRONMENTAL, INC.
                                   RNK ENVIRONMENTAL, INC.
                                   RNK ENVIRONMENTAL, INC.
                                   RNK ENVIRONMENTAL, INC.
                                   RNK ENVIRONMENTAL, INC.
                                   RNK ENVIRONMENTAL, INC.
                                   UNITED STATES TESTING COMPANY, INC.
                                   UNITED STATES TESTING COMPANY, INC.
                                   UNITED STATES TESTING COMPANY, INC.
                                   UNITED STATES TESTING COMPANY, INC.
                                   WASTE STREAM TECHNOLOGY, INC.
                                   WASTE STREAM TECHNOLOGY, INC.
                                   WASTE STREAM TECHNOLOGY, INC.
                                   WASTE STREAM TECHNOLOGY, INC.
                                   WASTE STREAM TECHNOLOGY, INC.
                                   WASTE STREAM TECHNOLOGY, INC.
                                   WASTE STREAM TECHNOLOGY, INC.
                                   WASTE STREAM TECHNOLOGY, INC.
                                   WASTE STREAM TECHNOLOGY, INC.
                                   WASTE STREAM TECHNOLOGY, INC.
                                   WESTERN RESEARCH  INSTITUTE
                                   WESTERN RESEARCH  INSTITUTE
                                   WOODWARD  CLYDE  CONSULTANTS
                                   WOODWARD  CLYDE  CONSULTANTS
                                   WOODWARD  CLYDE  CONSULTANTS
                                   WOODWARD  CLYDE  CONSULTANTS
                                   WOODWARD  CLYDE  CONSULTANTS
                                   WOODWARD  CLYDE  CONSULTANTS
                                   WOODWARD  CLYDE  CONSULTANTS
                                   WOODWARD  CLYDE  CONSULTANTS
                                   WOODWARD  CLYDE  CONSULTANTS
                                   WOODWARD  CLYDE  CONSULTANTS
                                   WOODWARD  CLYDE  CONSULTANTS
                                   WOODWARD  CLYDE  CONSULTANTS
                                   WOODWARD  CLYDE  CONSULTANTS
                                   WOODWARD  CLYDE  CONSULTANTS
                                   WOODWARD  CLYDE  CONSULTANTS
                                   WOODWARD  CLYDE  CONSULTANTS
                                   YEC INC
                                   YEC INC
                                   YEC INC
                                   YEC INC
                                   YEC INC
                                   YEC INC
                                   YEC INC
                                   YEC INC
                                   YEC INC
                                   YEC INC
                                   YEC INC
                                   YEC INC
                                    YEC INC
                                             CHEMICAL PRECIPITATION
                                             CHEMICAL REDUCTION
                                             CHLORINATION
                                             ION EXCHANGE
                                             NEUTRALIZATION
                                             REVERSE OSMOSIS
                                             SOIL WASHING
                                             STABILIZATION/SOLIDIFICATION
                                             ACTIVATED SLUDGE
                                             ANAEROBIC BIOLOGICAL
                                             BIOOEGRADATION-COMPOSTING
                                             BIODEGRADATION-NOS
                                             AEROBIC BIOLOGICAL
                                             ANAEROBIC BIOLOGICAL
                                             BIOOEGRADATION-COMPOSTING
                                             BIODEGRADATION-SLURRY PHASE
                                             BIODEGRADATION-SOLID PHASE
                                             CHEMICAL EXTRACTION
                                             CHEMICAL TREATMENT
                                             IN SITU BIODEGRADATION
                                             IN SITU SOIL  FLUSHING
                                             SOIL WASHING
                                             EMULSION REMOVAL
                                             EVAPORATION
                                             ADSORPTION
                                             AEROBIC BIOLOGICAL
                                             BIODEGRADATION-SLURRY PHASE
                                             CATALYSIS
                                             CHEMICAL OXIDATION
                                             CHEMICAL PRECIPITATION
                                             CHEMICAL REDUCTION
                                             IN SITU BIODEGRADATION
                                             IN SITU VACUUM  &  STEAM  EXTRACT
                                             INCINERATION
                                             ION EXCHANGE
                                             NEUTRALIZATION
                                             SOIL WASHING
                                             SOLVENT RECOVERY
                                             STABILIZATION/SOLIDIFICATION
                                             STRIPPING
                                             ACTIVATED  CARBON
                                             ADSORPTION
                                             ADSORPTION
                                             AEROBIC BIOLOGICAL
                                             ANAEROBIC  BIOLOGICAL
                                             CHEMICAL OXIDATION
                                             CHEMICAL PRECIPITATION
                                             CHEMICAL TREATMENT
                                             CHLORINATION
                                             COAGULATION/FLOCCULAT ION
                                             DISSOLVED  AIR FLOTATION
                                              IN SITU BIODEGRADATION
                                              ION  EXCHANGE
                                                 IV- 95

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CONTAMINANT GROUP
                                TABLE # 4 (CONTINUED)
                                   COMPANY NAME
                                                                                TREATMENT TECHNOLOGY
NOT SPECIFIED
                                   YEC INC
                                   YEC INC
                                   YEC INC
                                   YEC INC
                                   ZENON ENVIRONMENTAL
                                   ZIMPRO PASSAVANT
                                   ZIMPRO PASSAVANT
                                   ZIMPRO PASSAVANT
                                   ZIMPRO PASSAVANT
                                   ZIMPRO PASSAVANT
                                   ZIMPRO PASSAVANT
                                   ZIMPRO PASSAVANT
                                   ZIMPRO PASSAVANT
                                   ZIMPRO PASSAVANT
                                   ZIMPRO PASSAVANT
                                   ZIMPRO PASSAVANT
NEUTRALIZATION
OZONATION
STABILIZATION/SOLIDIFICATION
STRIPPING
CHLORINATION
ACTIVATED SLUDGE
ADSORPTION
AEROBIC BIOLOGICAL
ANAEROBIC BIOLOGICAL
CHEMICAL PRECIPITATION
COAGULATION/FLOCCULATION
FILTRATION
ROTATING BIOLOGICAL CONTACTORS
SOLIDIFICATION
STRIPPING
WET AIR OXIDATION
                                                   IV-96

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COMPANY NAME
                                                   TABLE # 5: TREATABILITY STUDY VENDORS





                                     STREET ADDRESS                CITY                STATE ZIP CODE  PHONE NUMBER
CONTACT
AAA CSI
AEA TECHNOLOGY
ANDCO ENVIRONMENTAL PROCESSES. INC.
APPLIED SURFACE TECHNOLOGY
AUC INCORPORATED
BIO- RECOVERY SYSTEMS, INC.
BIOSCIENCE MANAGEMENT, INC.
BIOTROL, INC.
CAA BIOREMEOIATION SYSTEMS
CAMBRIDGE SCIENTIFIC, INC.
CHEMENCO, INC.
CHEMFIX ENVIRONMENTAL SERVICES, INC
COMBUSTION ENGINEERING, INC.
CYTO CULTURE ENVIRON. BIOTECH.
D D ENVIRONMENTAL
DETOX, INC.
DIVERSIFIED ENGINEERING, INC.
E M ft C ENGINEERING ASSOCIATES
EARTH TECHNOLOGY CORP.
ENERGY&ENVIRONMENTAL RESEARCH CORP.
ENRICO TECHNOLOGIES
ENSOTECH, INC.
ENSR - CELGENE
ENVIRONMENTAL REMEDIATION, INC.
ENVIRONMENTAL RESOURCE ASSOCIATES
ENVIRONMENTAL TECHNOLOGY SOUTHEAST
ENVIROSAFE TECHNOLOGIES, INC.
ENWRIGHT ENVIRONMENTAL, INC.
FORMULA ENVIRONMENTAL COMPANY
FRANCIS A. MCLOUGHLIN, INC.
FREEZE TECHNOLOGIES CORPORATION
GENERAL PHYSICS CORPORATION
GROUNDUATER & ENVIRONMENTAL SERVICE
HARMON ENVIRONMENTAL SERVICES. INC.
HAZANSUERS, INC.
HAZCON ENGINEERING, INC.
HUNTER BIOSCIENCES, INC.
HUNTER SERVICES, INC.

P.O. BOX 5067
HARWELL LABORATORY
595 COMMERCE DRIVE
957- R INDUSTRIAL ROAD
4335 W TROPICANA
P.O. BOX 3982
1530 VALLEY CTR PKUY/120
11 PEAVEY RD.
1106 COMMONWEALTH AVE.
195 COMMON STREET
5736 N TRYON ST
2424 EDENBORN AVE, # 620
261 COMMERCIAL/BOX 7050
124 WASHINGTON AVENUE
243 PLYMOUTH DRIVE
561 CONGRESS PARK DRIVE
7600 GEORGIA AVE., NW
1665 SCENIC AVE., STE 104
100 W. BROADWAY/STE. 5000
18 MASON
THE FISK BLDG/PO BOX 9838
7949 A JAY DRIVE
3000 RICHMOND AVE
P.O. BOX 45212-210
144 BIGNALL STREET
1819 ALBERT ST
P.O. BOX 833
P.O. BOX 17467
1306 N.W. MIRAGE #K301
P.O. BOX 182
2539-C TIMBERLAKE
6700 ALEXANDER BELL DRIVE
PEMBROKE ONE BLDG/STE.320
2066 WEST PARK PLACE
2300 N. YELLOWSTONE
P.O. BOX 1274
3208 SPRING FOREST ROAD
P.O. BOX 1703

NOVATO
OXFORDSHIRE, UK
AMHERST
SAN CARLOS
LAS VEGAS
LAS CRUCES
BETHLEHEM
CHASKA
BOSTON
BELMART
CHARLOTTE
METAIRIE
PORTLAND
PORT WASHINGTON
ROANOKE
DAYTON
WASHINGTON
COSTA MESA
LONG BEACH
IRVINE
AMARILLO
SUN VALLEY
HOUSTON
BATON ROUGE
WARWICK
JACKSONVILLE
VALLEY FORGE
GREENVILLE
SILVERDALE
WELLESLY HILLS
RALEIGH
COLUMBIA
VIRGINIA BEACH
STONE MOUNTAIN
IDAHO FALLS
BROOKSHIRE
RALEIGH
GAINESVILLE
V- 1
CA

NY
CA
NV
NM
PA
MN
MA
MA
NC
LA
ME
CA
VA
OH
DC
CA
CA
CA
TX
CA
TX
LA
RI
FL
PA
SC
WA
MA
NC
HD
VA
GA
ID
TX
NC
FL

94948 415-883-6380
OX 11 OR A 0235-24141
14150 716-691-2100
94070 415-594-9797
89103 702-871-7733
88003 505-646-5888
18017 215-974-9693
55318 612-448-2515
02215 617-232-2207
02178 617-484-3184
28213 704-596-4844
70001 800-992-3443
04112 207-775-5401
94801 415-233-6660
24019 703-362-9661
45459 513-433-7394
20012-1616 202-726-7676
92626 714-957-6429
90802-5785 213-495-4449
92718 714-859-8851
79105-9838 806-379-6424
91352 818-767-2222
77098 713-520-9900
70895 504-667-1226
02888 401-781-7422
32202 800-334-7456
19482-0833 215-962-0800
26606 803-235-0707
98383-0341 206-698-1905
02181 617-237-5262
27629-0968 919-850-0600
21046 301-290-2300
23450 804-490-4653
30087 404-469-3077
83401 208-522-5526
77422 800-227-6543
27604 919-872-9686
32602-1703 904-332-3318

G.F. KRONEBERGER
L.R. FELLINGHAM
GARY A. PECK
S. MOGHADDAH
TERRY WENSTRAND
DENNIS DARNALL
T.G. ZITRIDES
MICHAEL MARTINSON
SAMUEL FOGEL
DONALD WISE
WILLIAM KLOTZ
PHILLIP N. BALDWIN, JR.
AVI JIT DASGUPTA, PhD
RANDALL VON WEDEL
S. DOBORAH OYLER
DIANE KROPLIN
MARION C. THOMAS
MOHAMED I. ELGAFI
GEOFFREY MARTIN
RANDY SEEKER
DWRIGHT M. RUETER
DR. INDERJIT H. SUBHERWAL
JAMES B. WORTHINGTON
JOHN CHRISTIANSEN
ALVIN SNYDER
H.W. COX, JR.
ROBERT A. WEST
ED WANNEMACHER
PAUL LAUTERBACH
FRANCIS A. MCLAUGHLIN
JAMES HEIST
DESMOND W. CHAN
S. KUMAR
MARK SNEARON
MILO LARSEN
RAY FUNDERBURK
MIKE WILLIAMS
PAUL J. FAVARA


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     COMPANY  NAME
                        TABLE  # 5  (CONTINUED)

     STREET ADDRESS                 CITY
                                                                                          STATE ZIP CODE  PHONE NUMBER
                                                                                                                                 CONTACT
 I IT  RESEARCH  INST
 INTERNATIONAL PROCESS RESEARCH CORP
 IT CORPORATION
 JACOBS ENGINEERING GROUP.  INC.
 KEYSTONE  ENVIRONMENTAL RESOURCES
 KIBER ASSOCIATES. INC.
 KSE, INC.
 MAECORP.  INC.
 MARINE POLUTION CONTROL
 MCNAMEE ADVANCED TECHNOLOGY,  INC.
 MEMBRANE  TECHNOLOGY & RESEARCH, INC
 MIDWEST RESEARCH INSTITUTE
 NATIONAL  SANITATION FOUNDATION
 O'BRIEN AND GERE ENGINEERS, INC.
 OGDEN ENVIRONMENTAL SERVICES, INC.
 OHM CORPORATION
 PETROLEUM TESTING SERVICE, INC.
 PITTSBURGH MIN&ENV.TECH., INC.
 POLYBAC CORPORATION
 PROCEDYNE CORPORATION
 PYROGENICS. INC.
 QUALTEC,  INC.
 RADIAN CORPORATION
 REMEDIATION TECHNOLOGIES
 REMEDIATION TECHNOLOGY,  INC.
 RIVER OAK ASSOCIATES
 RMC ENV & ANALYTICAL LABORATORIES
 RMT.  INC.
 RNK ENVIRONMENTAL,  INC.
 RODNEY KINNEY ASSOCIATES
 ROY F.  UESTON, INC.
 S-CUBED
 SOUTHERN RESEARCH INSTITUTE
 SYBRON  CHEMICALS, INC.
 THORNE  ENVIRONMENTAL,  INC.
 TREATEK,  INC.
ULTROX  INTERNATIONAL
UNITED  STATES TESTING COMPANY. INC.
VAPEX
 10 WEST 35TH ST
 5906 MCINTYRE STREET
 304  DIRECTORS DRIVE
 1234 NATIONAL PRESS BLDG.
 3000 TECH CENTER DRIVE
 2185 MEDFIELD TRAIL
 P.O. BOX 368
 155  NO. UACKER DR..STE400
 8631 WEST JEFFERSON
 3135 S STATE ST/SUITE 301
 1360 WILLOW RD/SUITE 103
 425 VOLKER BLVD
 3475 PLYMOUTH RD.
 1304 BUCKLEY ROAD
 10955 JOHN JAY HOPKINS OR
 16406 ROUTE 224 EAST
 12051 RIVIERA ROAD
 390 FRANKFORT ROAD
 954 MARION BLVD.
 221 SOMERSET ST
 2424 BRIDGE AVE
 11300 US HWY #1,SUITE 500
 8501 MO PAC BLVD.
 22419 72ND AVE S
 273 FRANKLIN ROAD
 C/0 ESC INC.,P.O. BOX 366
 214 WEST MAIN PLAZA
 744 HEARTLAND TRAIL
 P.O. BOX 17325
 P.O. BOX 1102
 WESTON WAY
 P.O. BOX 1620
 2000 9TH AVE. SOUTH
 111  KESLER MILL ROAD
 4887 E.  LAPALMA AVE
 2801 LONG ROAD
 2435 SOUTH ANNE STREET
 1415 PARK AVENUE
480 NEPONSET STREET
CHICAGO
GOLGEN
KNOXVILLE
WASHINGTON
MONROEVILLE
ATLANTA
AMHERST
CHICAGO
DETROIT
ANN ARBOR
MENLO PARK
KANSAS CITY
ANN ARBOR
SYRACUSE
SAN DIEGO
FINDLAY
SANTA FE SPRINGS
MONACA
ALLENTOWN
NEW BRUNSWICK
POINT PLEASANT
PALM BEACH GARDENS
AUSTIN
KENT
RANDOLPH
WINFIELD
WEST PLAINS
MADISON
COVINGTON
EAGLE RIVER
WEST CHESTER
LA JOLLA
BIRMINGHAM
SALEM
ANAHEIM
GRAND ISLAND
SANTA ANA
HOBOKEN
CANTON
      V-  2
 IL  60616-3799
 CO  80403
 TN  37923
 DC  20045
 PA  15146
 GA  30345-3009
 MA  01004
 IL  60606
 MI  48209
 MI  48108
 CA  94025
 MO  64110
 MI  48106
 NY  13221
 CA  92121
 OH  45840
 CA  90670-2289
 PA  15061
 PA  18103
 NJ  08901
 NJ  08742
 FL  33408
 TX  78720-1088
 WA  98032
 NJ  07869
 IL  60190
MO  65775
WI  53717-1934
 KY  41017
AK  99577
 PA  19380
 CA  92038
AL  35255
VA  24153
CA  92807
NY  14072
CA  92704
NJ  07030
MA  02021
-1620
-5305
312-567-4000    I.B. FIELDHOUSE
303-279-2581    CULLY MARSHALL
615-690-3211    RICHARD MILLER
202-783-1560    MR. RAMESH MARAJ
412-825-9600    RICHARD DeCESAR, PhD
404-633-0313    NEVILLE W. KINGHAM
413-549-5506    DR. CHARLES W. OUINLAN
312-372-3300    JAMES MILLER
800-521-8232    MICHAEL E. SNYOER
313-665-5553    DR. JOH KANG
415-328-2228    VICKI SIMMONS
816-753-7600    BRUCE A. BOOMER
313-769-8010    MARC ANDERSON
315-451-4700    STEVEN CARVER
619-455-3045    ROBERT HANEY
800-231-7031    SAM INSALACO
213-698-0081    MICHAEL D. MITCHELL
412-774-4900    WILLIAM F. SUTTON
800-523-9385    JOHN VINSON FORSYTH
201-249-8347    JOHN R. WHYTE, JR.
201-295-0800    DR. J. MICHAEL BURKE
800-247-9871    R.A. "PETE" DRAKE
512-454-4797    DOROTHY A. STEWART
206-872-0247    HANS P. STROO
201-361-8840    WERNER STEINER
312-231-7915    JAMES 0. LYNCH
417-256-1101    DR. R. SOUNDARAJAN
608-831-4444    PAUL KNOPP
606-344-0966    DAVID NUTINI
907-694-2332    RODNEY KINNEY. SR.
215-692-3030    M. RAMANATHAN
619-453-0060    GREG SWANSON
205-581-2000    DOUGLAS B. RIVERS
800-654-6952    LOIS DAVIS
714-693-1818    SUZANNE LARSON
716-773-8661    ANTHONY YING
714-545-5557    MAX FEIBLEMAN
201-792-2400    DANIEL DROZDOWSKI
617-821-5560    SCOTT D. RICHTER

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    COMPANY NAME
                        TABLE # S (CONTINUED)

    STREET ADDRESS                CITY
                                                                                          STATE ZIP CODE  PHONE NUMBER
                                                                                                                                 CONTACT
VERSAR INC.
WASTE STREAM TECHNOLOGY, INC.
WESTERN RESEARCH INSTITUTE
WESTINGHOUSE SCIENCE & TECHNOLOGY
WOODWARD CLYDE CONSULTANTS
YEC INC
ZENON ENVIRONMENTAL
ZIMPRO PASSAVANT
6850 VERSAR CENTER
661 WYOMING AVENUE
365 N NINTH STREET
1310 BEULAH ROAD
500 12TH ST., SUITE 100
10 PINE CREST ROAD
845 HARRINGTON COURT
301 W. MILITARY ROAD
SPRINGFIELD              VA
BUFFALO                  NY
LARAMIE                  WY
PITTSBURGH               PA
OAKLAND                  CA
VALLEY COTTAGE            NY
BURLINGTON, ONTARIO
ROTHSCHILD               WI
22151-0549 703-750-3000
14215      716-838-1044
82071      307-721-2276
15235      412-256-1000
94607-4014 415-893-3600
10989      914-268-3203
L7N3P3     416-639-6320
54474      715-359-7211
GAYANEH CONTOS
MIKE BARNHART
TERRENCE 0. CHATWIN
DIANA L. TESLA
SATISH ALMAULA
Y.S. ED CHEN
R. PHILIP CANNING
WILLIAM COPA
                                                                         V-3

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