PB97-964612
                                EPA/541/R-97/200
                                April 1998
EPA Superfund
      Record of Decision:
       Boomsnub/Airco
       Site-Wide Ground Water OU
       Vancouver, WA
       9/29/1997

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      RECORD OF DECISION

            FOR

   INTERIM REMEDIAL ACTION
BOOMSNUB/AIRCO SUPERFUND SITE
   VANCOUVER, WASHINGTON


        SEPTEMBER 1997

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                             RECORD OF DECISION
                                       FOR
                          INTERIM REMEDIAL ACTION
                 SITE-WIDE GROUND-WATER OPERABLE UNIT

                          Boomsnub/Airco Superfund Site
                              Vancouver, Washington

                              THE DECLARATION
Site Name and Location
Boomsnub/Airco Superfund Site
Site-Wide Ground-Water Operable Unit
Vancouver, Washington

Statement of Basis and Purpose

This decision document presents the selected interim remedial action for the Boomsnub/Airco
Superfund Site (the Site), located north of Vancouver in Hazel Dell, Washington.  This remedy
was developed in accordance with the requirements of the Comprehensive Environmental
Response, Compensation, and Liability Act of 1980,42 USC §9601 et seq. (CERCLA), as
amended by Superfund Amendments and Reauthorization Act of 1986 (SARA), and, to the
extent practicable, the National Oil and Hazardous Substances Pollution Contingency Plan
(NCP), 40 CFR Part 300. This decision is based on the Administrative Record for this Site.

The State of Washington concurs with the selected remedy.

Assessment of the Site

Actual or threatened releases of hazardous substances from the Site, if not addressed by
implementing the response actions selected in this Record of Decision (ROD), may present an
imminent and substantial endangerment to public health, welfare, or the environment.

Description of the Selected Remedy

This interim action ROD addresses only the Site-Wide Ground-Water Operable Unit (OU) and
the ground-water contamination at the Site. A final ROD is planned for the Site to fully address
the threats  posed by conditions at this OU.
       *
The selected remedy is to continue operation and maintenance of the existing ground-water

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 for Clark County. The remedy includes the following actions:

       •      operation and maintenance (O & M ) of the existing extraction/treatment system;
       •      installation of additional monitoring wells near the leading edge of the plume to
              determine the need for more extraction wells, and connection of additional wells
              to the extraction network, if necessary;
       •      upgrading some extraction wells and .vaults as necessary to prevent infiltration of
              water during storm events, and
       •      acquisition or construction of office and storage space for the extraction/treatment
              and telemetry systems, new and used resin, as well as for tools, parts and
              equipment needed for 0 & M of the system.

Statutory Determination

This interim action is protective of human health and the environment, attains federal and state
requirements that are legally applicable or relevant and appropriate for this interim action, and is
cost effective.  Although this interim action is not intended to address fully the statutory mandate
for permanence and treatment to the maximum extent practicable, it does include treatment and
thus is in furtherance of that statutory nwvkte  Because this action does not constitute the final
remedy for the Site-Wide Ground-Water OU, the statutory preference for remedies that employ
treatment to reduce toxiciry, mobility, or volume of waste as a principal element will be
addressed fully by the final response action.

Since this interim remedy will result in hazardous substances above health-based levels
remaining on-site, a review will be conducted within five yean after commencement of remedial
action to ensure that the remedy continues to provide adequate protection of human health and
the environment In addition, because this is an interim action ROD, review of this Site and this
remedy will be ongoing as EPA continues to develop final remedial alternatives for this OU.
Chuck Clarke                                                Date
Regional Administrator
United States Environmental Protection Agency
Region 10

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         RECORD OF DECISION

                FOR

      INTERIM REMEDIAL ACTION
SITE-WIDE GROUND-WATER OPERABLE UNIT
   BOOMSNUB/AIRCO SUPERFUND SITE
       VANCOUVER, WASHINGTON
         DECISION SUMMARY
           SEPTEMBER 1997

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                            RECORD OF DECISION
                     BOOMSNUB/AIRCO SUPERFUND SITE
                         VANCOUVER, WASHINGTON

                             DECISION SUMMARY


                            TABLE OF CONTENTS


SECTION                                                                 PAGE

1.0    Site Name, Location, and Description	1

      1.1   Site Name and Location	1
      1.2   Site Description	1

2.0    Site History and Enforcement Activities	1
      2.1    Boomsnub Corporation	1
            2.1.1   State Enforcement Actions	4
            2.1.2   United States Criminal Proceedings	'.	4
            2.1.3   EPA Enforcement Actions	5
            2.1.4   EPA Removal Actions	5
      2.2    BOC Gases	6
            2.2.1   State Enforcement Actions	6
            2.2.2   EPA Enforcement Actions	:	6

3.0    Highlights of Community Participation	6

      3.1    Ecology Relations Activities	6
      3.2    EPA Community Relation Activities	7

4.0    Scope and Role of Operable Unit ..:	8

5.0    Summary of Site Characteristics	9
      5.1    Geology/Hydrogeology	9
      5.2    Nature and Extent of Contamination	9
            5.2.1   Boomsnub Facility	9
            5.2.2   BOC Gases Facility 	10
      5.3    Current Extraction/Treatment System and Site Operations	10

6.0    Risk Assessment  	18

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7.0    Goals and Objectives of Remedial Action	 18

8.0    Description of Remedial Action Alternatives	19

       8.1    Alternative 1: No Action	19
       8.2    Alternative 2: Operate Existing System and Improve the
             Extraction/Treatment System and Plant Facilities	 19

9.0    Comparative Analysis of Alternatives	20

       9.1    Overall Protection of Human Health and the Environment	20
       9.2    Compliance with ARARs 	20
       9.3    Long-Term Effectiveness and Permanence	:	20
       9.4    Reduction in Toxicity, Mobility, or Volume Through Treatment	22
       9.5    Short-Term Effectiveness 	22
       9.6    Impiementability	22
       9.7    Cost	'.	22
       9.8    State Acceptance	23
       9.9    Community Acceptance	23

10.0   The Selected Remedy	23

11.0   Statutory Determinations	24
       11.1   Protection of Human Health and the Environment	24
       11.2   Compliance with Applicable or Relevant and Appropriate
             Requirements	25
       11.3   Utilization of Permanent Solutions and Alternative Treatment
             Technologies or Resource Recovery Technologies to the Maximum
             Extent Practical	27
       11.4   Cost Effectiveness	27
       11.5   Preference for Treatment as a Principal Element	27

12.0   Documentation of Significant Changes	27

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List of Figures

1     Site Location Map	2
2     Operable Units	3
3     Site-Wide Groundwater Chromium Concentrations, May 1995	12
4     Site-Wide Gtoundwater TCE Concentrations, May 1995 	.13
5     Site-Wide Groundwater Chromium Concentrations, May 1997	14
6     Site-Wide Groundwater TCE Concentrations, May 1997	15
7     Chromium Concentrations in Site Wells	16
6     TCE Concentrations in Site Wells	17

List of Tables

1     Boomsnub/BOC Gases Superfund Site Operable Unit Description  	8
2     Evaluation Criteria	21

Appendices

A     Responsiveness Summary

B     Administrative Record Index
                                         in

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                       ABBREVIATIONS AND ACRONYMS

ARAR       applicable or relevant and appropriate requirement
CERCLA     Comprehensive Environmental Response, Compensation and Liability Act
CFR         Code of Federal Regulations
CPU         Clark Public Utilities
CWA        Clean Water Act
EPA         U.S. Environmental Protection Agency
gpm         gallons per minute
NCP         National Oil and Hazardous Substances Pollution Contingency Plan
NPDES       National Pollutant Discharge Elimination System
NPL         National Priorities List
OU          Operable Unit
ppb          parts per billion
ppm         parts per million
RCRA       Resource Conservation and Recovery Act
RC W        Revised Code of Washington
RAO         remedial action objective
RI/FS        Remedial investigation/feasibility study
ROD         Record of Decision
SARA       Superfund Amendments and Reauthorization Act
WAC        Washington Administrative Code
                                        IV

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                              RECORD OF DECISION
                       BOOMSNUB/AIRCO SUPERFUND SITE
                           VANCOUVER, WASHINGTON

                               DECISION SUMMARY
                 1.0  SITE NAME, LOCATION, AND DESCRIPTION

1.1    Site Name and Location

The Boomsnub/Airco Site (the Site) is located north of Vancouver in Hazel Dell, Washington
(see Figure 1). The Site is approximately two miles east of Interstate 5 and one mile west of
Interstate 205, near NE 78th Street and NE 47th Avenue.  The Site is bordered by a mixture of
residential, commercial, and light industrial properties.

1.2    Site Description

The Boomsnub property is approximately 0.75 acres and is located at 760.8 NE 47th Avenue (see
Figure 2). The property is vacant except for a machine shop building unrelated to Site activities
and the ground-water treatment system. The Boomsnub Corporation and its predecessor
company, Pioneer Plating, conducted chrome plating operations at this location from 1967 until
1994, when Boomsnub moved its business to its current location at 3611 NE 68th Street.

The BOC Gases facility (formerly known as Airco) is an 11-acre, active gas production facility.
It is located across the street (47th) from the Boomsnub property at 4758 NE 78th Street The
company manufactures and distributes compressed and liquefied gas products including nitrogen,
oxygen, and argon. The company also stores and distributes other gases such as hydrogen,
acetylene, and helium.  The BOC Gases plant has been in operation since 1964.

The Site also encompasses a plume of ground-water contamination that emanates from beneath
the two facilities and extends in a west/northwest direction to approximately NE 30th Avenue.

There are no known flood plains, endangered species, historical landmarks, or structures with
historical significance identified at the Site. Designated wetlands have been identified along the
south side of NE 78th Street just west of St. Johns Road, in the vicinity of extraction well
MW-19D.
                   •

              2.0 SITE HISTORY AND ENFORCEMENT ACTIVITIES

2.1    Boomsnub Corporation

       The Boomsnub Corporation has been in business since 1952. Pacific Northwest Plating,
formerly known as Pioneer Plating Company, is a division of the Boomsnub Corporation.
Pacific Northwest Plating operated an industrial hard chrome facility on the Boomsnub property

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K»
                                                                      Fifurel
                                                                    Site Location
                                                            Boomsnub/Aireo Superfund Site

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                                          ««•***
                                               SITE-WIDE GROUNDWATER
                                                    OPERABLE UNIT 3
      Legend
(TJ Ext«cttooW«is
[o] EjrtstJng Monftortng Wate
^ ExtracflooUnB
Q Porcal BoundMtas
fwl ApproxkiwtA Extant ol
   OroumtwMr Contamination
BOOMSNUBSOIL
OPERABLE UNIT 1
 i  " '  .'             BOC GASES SOIL
                    OPERABLE UNIT 2
                           3000
                                               Flfarel
                                             Operable Uniu
                                       Boomsnub/Ainx> Superfund Site
                                 (Note: only selected monitoring wells are shown)

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from 1978 to 1994, Prior to 1978, the Pioneer Plating Company operated on the Site between
1 967 and 1978.  The_electroplating process used by Boomsnub involved the use of a chromic
acid solution containing hexavalent chromium.

2.1.1   State Enforcement Actions

In 1982, the Washington State Department of Ecology (Ecology) issued an Administrative Order
to the Boomsnub Corporation. The Order required the corporation to line the vault underneath
the plating tanks with an acid-proof coating to eliminate leaks and protect the concrete from
corrosion. In response, the corporation installed a steel plate liner in the vault beneath the tanks.

In 1987, Ecology required the Boomsnub Corporation to install monitoring wells to detect the
presence of chromium in the ground water that might nave resulted from leaks, spills, and other
practices over the years.  Sampling results indicated levels of chromium in the soils and ground
water at the facility in the thousands of parts per billion (ppb) range. In March  1990, Boomsnub
reported to Ecology a significant (four orders of magnitude) increase in hexavalent chromium
levels in one monitoring well at the Site. The company also stated that a break in its drinking
water main released approximately 300,000 gallons of water to soil beneath the facility, which
may have contributed to this increase. In May 1990, Ecology issued an enforcement order,
pursuant to the Model Toxics Control Act (RCW 70.105D), to the Boomsnub Corporation. The
Order required the company to extract and treat  contaminated ground water, monitor existing on-
site wells, and conduct ground-water studies. Boomsnub installed pumping wells and began the
extraction and treatment of ground water.
By August 1990, Boomsnub ann^nyrd that it did not have die financial resources to meet the
requirements of the Ecology order. Ecology assumed financial responsibility for operating the
extraction/treatment system, expanding ">d upgrading die system installed by Boomsnub, and
for ground-water monitoring. These activities included upgrading the treatment system from
reverse osmosis to ion exchange, and expanding the extraction network and treatment system to
handle increased volumes of water. Ecology also constructed a pressure sewer line to the City of
Vancouver's sanitary sewer system for the discharge of treated ground water. The Boomsnub
Corporation provided some in-kind services, such as the treatment plant operator, however,
Ecology paid for the majority of the Site work.

In 1993, Ecology requested that EPA list the Site on the National Priorities List (NPL) since
Ecology did not have the financial resources to continue the cleanup at the Site.  EPA proposed
the Site for inclusion on the NPL on January 1 8, 1994. The Site was listed on the NPL on April
25, 1995 (60 Fed. Reg.  20330).

2.1.2   United States Criminal Proceedings

EPA conducted initial sampling of the Boomsnub property in conjunction with a criminal search
warrant in April  1994.  This sampling indicated that extremely high levels of chromium were

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present at the facility and in the soil on the property.  In 199S, a federal grand jury issued a
criminal indictment against the Boomsnub Corporation and three of its principal officers for
illegal disposal and storage of hazardous waste.  In late 1995, the U. S. Attorney entered into a
plea agreement with the Boomsnub Corporation in which the company pleaded guilty to
knowingly storing and disposing of hazardous waste without a Resource Conservation and
Recovery Act (RCRA) permit, and knowingly violating the Clean Water Act by discharging
waste water to the City of Vancouver sanitary sewer system without prior authorization. Two
officers of the company pleaded guilty to one count each. The Company was sentenced to five
years probation and payment of restitution in the amount of $ 150,000, to be paid in equal
amounts to EPA and Ecology. One officer of the company was sentenced to five years
probation, home confinement, and payment of restitution in the amount of $60,000, in equal
amounts of $30,000 each to EPA and Ecology.  The second officer received one year probation,
and a fine of $ 1,000. Charges were not pursued against a third officer of the company due to his
illness.

The criminal settlement is independent of the action EPA is currently taking against the
Boomsnub Corporation and its officers to recover the Superfund money spent to investigate and
clean up the chromium contamination at the Site.

2.13   EPA Administrative Orders

In May 1994, EPA issued a Unilateral Administrative Order (UAO) to the Boomsnub
Corporation and two officers of the company requiring the corporation to cease operations and
provide EPA with access to perform response actions. The UAO was temporarily extended for a
short period during which the company attempted to abate the continuing release of chromium
and to document that there were no continuing releases. This action was \mdnmkm while the
company was in the process of moving its operations to a new location.

2.1.4   EPA Removal Activities

In June 1994, EPA's Removal Program took over lead-agency activities at the Site. The
Boomsnub Corporation ceased operations at the Site shortly thereafter. They reopened several
months later at their current location at 3611 SE 68th Street

EPA began a removal operation that included the off-site disposal of more than 400 drums of
waste, demolition and removal of buildings and plating tanks,  and removal and off-site disposal
of more than 6,000 tons of chromium-contaminated soil. The removal action also included
converting two monitoring wells (at the leading edge of the ground-water contaminant plume) to
extraction wells and connecting them to the extraction network, increasing the pumping rate to
100 gallons per minute (gpm), and upgrading the ion exchange system to improve treatment
efficiency and to handle the increased extraction rate. EPA's Remedial Program took over
operation of the extraction/treatment system in January  1995, but has continued to rely on
removal funding to support the ongoing O  & M effort.

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2.2    BOC Gases Facility

In 1991, during the course of the cleanup at Boomsnub, Ecology discovered volatile organic
compounds (VOCs) in the ground water. The VOCs detected included trichlorocthene (TCE),
perchJorocthene (PCE), 1,1,1-trichloroethane (1,1,1-TCA), and trichJorofluoromethane (Freon-
11).  Based on the concentrations and types of chemicals found in ground water, Ecology
suspected BOC Gases as the source of the contamination.  In August 1991, Ecology sent a letter
to BOC Gases requesting the company to conduct an investigation. In response to this request,
BOC Gases voluntarily conducted a two-phase investigation in 1992 that included subsurface
soil borings and installation of monitoring wells along the perimeter of the property.  Ground-
water sampling results showed the presence of a variety of VOCs at various wells on the
property.

2.2.1   State Enforcement Actions

In March 1993, BOC and Ecology signed an Agreed Order under MTCA requiring BOC Gases
to install additional ground-water monitoring wells, sample ground water, investigate potential
sources of the VOC contamination, and sample sediment and water in two on-site dry wells.
Results of this investigation showed extremely high levels of TCE and Freon-11 in the sediment
of the south dry well.

In December 1993, Ecology issued an Enforcement Order requiring BOC Gases to install several
off-site monitoring wells, further investigate potential sources of the VOC contamination on the
BOC Gases property, and remove contaminated Kidimrm from the south dry well. The Order
also required BOC Gases to assume responsibility for operating the VOC removal portion (air
stripper and carbon adsorption) of the extraction/treatment system. BOC complied with these
requirements.

2.2.2   EPA Enforcement Actions

EPA and BOC Gases signed an Administrative Order on Consent (AOC) in January 1997
requiring BOC Gases to conduct a site evaluation at its facility.  The purpose of the site
evaluation is to determine if a source (or sources) of VOC contamination remains in soil at the
Site that warrants a removal action. This investigation is ongoing.

               3.0  HIGHLIGHTS OF COMMUNITY PARTICIPATION

This section summarizes the community relations activities performed by Ecology and EPA both
prior to and after listing of the Site on the NPL.

3.1     Ecology Community Relations Activities

Ecology prepared a community relations plan in 1990. Under this plan, Ecology published

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 several fact sheets in 1990 through. 1994 that summarized project activities and investigation
 results. These fact sheets were mailed to approximately 250 interested individuals and
 companies. Ecology also provided the public with opportunities to comment on Orders issued to
 both Boorhsnub and BOC Gases and held periodic meetings with interested citizens and local
 officials to provide updates on Site activities.

 Ecology also awarded a public participation grant to the Clark County Citizens Hazardous Waste
 Task Force. The Task Force conducted informational meetings on hazardous waste activities in
 Clark County that included updates on Site activities.

 3.2    EPA Community Relations Activities

 EPA prepared an initial community relations plan in 1994 for the removal activities. Several fact
 sheets were distributed and information OK'rings were held during the removal action to keep
 interested citizens apprised of site cleanup activities. A press release on the listing of the Site on
 the National Priorities List was sent to the news media, including the local newspaper, and a
 mailing list was compiled using the Ecology data base. The Fort Vancouver Regional Library
 was established as a local information repository where technical documents and reports were
 housed for public review. EPA created an Administrative Record file for the removal action and
 placed this file in the local library as well.

 Currently, the mailing list consists of approximately 238 interested citizens, companies, public
 officials and news media. Periodic fact sheets are distributed to keep the public informed of Site
activities.  When requested, EPA has provided briefings on Site activities for the Clark County
 Citizens Hazardous Waste Task Force, and other community groups.  Technical documents on
current Site investigation plans have been placed in the repository and sent to local officials and
 interested citizens to provide an opportunity for comment on Site activities. The Community
 Relations Plan was updated in May 1997 to reflect upcoming investigations and other site
 activities.

 In July 1997, the Proposed Plan for the Interim Action on the Ground-Water OU was published
 and a fact sheet distributed to the mailing list An Administrative Record file for the proposed
 Interim Action was placed in the library in July 1997.  A thirty-day public comment period began
 July 30,1997 and ended August 29,1997.  EPA published a public notice of the comment
 period in the local newspaper. Since the interim action is primarily an administrative procedure
 tc secure long-term funding, EPA did not automatically hold a public meeting, but notified the
 public that one would be held if there was sufficient public interest. Since no calls were received
 requesting a public meeting, none was held.  EPA received one comment on the proposed plan
that supported EPA's preferred alternative.

This decision document presents the selected interim remedial action for the Site-Wide Ground-
 Water OU, chosen in accordance with CERCLA, as amended by SARA, and, to the extent
practicable, the NCP. This decision is based on the Administrative Record for the Site.

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                   4.0 SCOPE AND ROLE OF OPERABLE UNIT

For purposes of managing Site activities, EPA has divided the Site into three projects or
Operable Units (OUs):

       1.  TheBoomsnub SoilOU
       2  The BOC Gases Soil OU
       3.  The Site-Wide Ground-Water OU

Figure 2 and Table 1 provide further information on the location and description of these OUs.
                                       Table 1
                         Boomsnub/Airco Gases Superfund Site
                              Operable Unit Description

 OU1- Boomsnub Soil
 Includes the Boomsnub property and investigation of die remaining chromium contamination in the
 soil on the property.  Results of the soil investigation will be included in the site-wide remedial
 investigation/feasibility study (RI/FS).

 OU2- BOC Gases Soil
 Includes the  investigation of the extent of VOC contamination on BOC Gases Property and
 installation of ground-water monitoring wells in the Alluvial and Upper Troutdale Aquifers. EPA
 and BOC Gases have signed an Administrative Order on Consent for the implementation of this
 work.  Results of this work will be summarized in the site-wide RI/FS.

 OU3 - Site-Wide Ground-Water
 Includes the contaminated ground water beneath both properties and the contamination extending
 approximately 4,000 feet west/northwest of the properties.  Site activities include the operation and
 maintenance  of the existing ground-water extraction/treatment system Hn^ enhancements to the
 system. One RI/FS for both the Boomsnub Soil and Site-Wide Ground-Water OUs will be prepared.
 A Risk Assessment will be included in this effort.
This interim ROD for the Site-Wide Ground-Water OU is limited in scope and addresses only
actions necessary to contain and remove contaminated ground water through the continued
operation of the extraction/treatment system. Other activities associated with operation of the
extraction/treatment system, such as installation of additional monitoring wells and

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improvements to the system, have also been incorporated in this ROD. These interim actions
will be consistent with any future actions and will be reviewed and incorporated, to the extent
practical, into the final ROD for this OU.

                    5.0 SUMMARY OF SITE CHARACTERISTICS

5.1    Geology/Hydrogeology

There are two principal hydrogeologic units of concern in the general area of the Site. These are
the Pleistocene Alluvial deposits and the Upper Troutdale formation. The Pleistocene Alluvial
deposits are the near surface material and overlie the Upper Troutdale formation. The Alluvial
deposits consist of an unsaturated zone, an upper permeable aquifer (in which the chromium and
VOC contamination extends down gradient approximately 4000 feet) and a lower, low-
permeability silty/clayey aquitard. This aquitard separates the Alluvial aquifer from the Upper
Troutdale, which is the source of drinking water for approximately 65,000 residents in Clark
County. The aquitard varies from approximately 5 to 20 feet in thickness, and there are known
breaches in the aquitard in the vicinity of the Site. There are several private wells in the Alluvial
aquifer in the general area of the Site. Some of these wells are still used for drinking water.
Those residents whose wells have been affected by the ground-water contamination in the
Alluvial aquifer or are within the path of the ground-water contaminant plume have been
connected to an alternate water supply provided by Clark Public Utilities (CPU). CPU is the
local water purveyor for the residents in this area of Clark County. CPU also has several water
supply wells in the Upper Troutdale. The closest of these wells is within 2000 feet of the
contamination in the Alluvial aquifer.

The ground-water flow direction in the Upper Alluvial aquifer is in a west/northwest direction.
The ground-water flow direction in Upper Troutdale may be in a west/southwest direction. This
flow direction, however, is in question because it is based on wells of unknown construction:
EPA plans to install additional wells in the Upper Troutdale as part of the Boomsnub Soil and
Site-Wide Ground-Water RI/FS to confirm the actual flow direction.

5.2    Nature and Extent of Contamination

Several Site studies have been completed since 1987 on behalf of Ecology, EPA, and BOC Gases
that provide o partial picture of the extent of contamination at the Site. These studies are
summarized below and are included  in the Administrative Record for the Site. A complete
characterization of the Site, including studies completed by BOC Gases, will be contained in the
Site-Wide Ground-Water and Boomsnub Soil RI/FS, scheduled for completion in 1999.

5.2.1   Boomsoub Facility

In 1986, Ecology conducted a site inspection at Boomsnub. Shallow soil samples showed
chromium concentrations ranging from 163 to 3,140 parts per million (ppm) chromium. Lead

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concentrations ranged from 119 to 2,985 ppm.  In 1989, ground-water samples collected from
wells on the Boomsnub property showed chromium concentrations ranging from 1,300 to 5,800
ppb.

Ground-water samples collected from 1990 through 1994 at on and off-property monitoring
wells in the Alluvial aquifer showed that the highest chromium concentrations ranged from
2,400,000 ppb (at MW-11 on the Boomsnub property, now removed) to 89,000 ppb at MW-19D
(located in the field west of St. Johns Road). Sampling results from private wells and CPU
monitoring wells during this period showed no chromium in the Upper Troutdale. Low
concentrations of TCE were found in one private well and one CPU well, as discussed further
below.

In 1994, sampling conducted as part of the EPA removal at the Boomsnub property showed
chromium  concentrations greater than 9,000 ppm in subsurface soil. While the bulk of this
contaminated soil was removed from the property, post-removal sampling indicated that some
chromium-contaminated soil remains on the property. Additional sampling will be conducted
during the  RI/FS to determine whether the volume and areas of remaining contamination warrant
further cleanup.

5.2.2   BOC Gases Facility

In response to the discovery of VOCs in ground water in 1991, BOC Gases conducted several
limited on-site investigations from 1992 to 1994. Results of the investigations showed low
levels of VOCs in a few samples from on-site soils. The highest concentrations of VOCs were
found in a sediment sample from the south dry well.  The south dry well sample contained TCE
at 250,000 ppb, Freon-11 at 800,000 ppb and TCA at 9,900 ppb.  Ground-water simples from
wells in the Alluvial aquifer snowed a variety of VOCs including TCE at concentrations up to
9,200 ppb, 1,1,1-TCA at 390 ppb, PCE at 110 ppb, and Freon -11 at 220 ppb. In addition,.
sampling results from one private well and one CPU monitoring well in the Upper Troutdale
aquifer showed low levels of TCE; however,  the construction of the private well is unknown,
and the CPU well was not constructed according to state regulations. Therefore, it is unclear
whether the TCE'has penetrated the aquitard at just these locations due to the well construction,
or whether it has migrated down to the Upper Troutdale through another breach in the aquitard in
the area. Additional wells and sampling, as discussed further below, will be conducted during
the Site-Wide Ground-Water RI/FS to determine the source and pathway of the TCE.

BOC Gases is currently conducting a Site Evaluation on its property to determine if a source (or
sources) of the VOC contamination remains in the soil that warrants cleanup. The results of the
Site Evaluation will be available in early 1998.

5.3    Current Extraction/Treatment Operations and Site Monitoring

Through its contractor, ICF Kaiser, EPA continues to operate and maintain the  ground-water

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extraction network consisting of fifteen extraction wells. The extraction system is containing
most of the chromiumjind VOC contamination in the ground water, except for an unknown
amount at the farthest down gradient (western) edge that has moved beyond the capture zone of
the outermost extraction wells.  Currently, EPA is extracting water from nine of the fifteen
extraction wells in order to optimize the efficient removal of contamination. EPA also operates
and maintains the ion exchange system that removes the chromium from the ground water. BOC
Gases operates the air stripping portion of the treatment system, which removes the VOCs from
the ground water. After the water is treated, it is then discharged to the sanitary sewer, where it
is further treated at the City of Vancouver waste water treatment plant.

EPA samples the operating ground-water extraction wells on a monthly basis.  EPA also samples
the influent and effluent from the treatment plant for compliance with its permit limits for
discharge to the sanitary sewer. Twice a year, in the spring and fall, EPA samples selected wells
in the ground- watCi monitoring network. The purpose of this twice-yearly monitoring is to
determine the effectiveness of the cleanup in removing ground-water contamination and to assist
EPA in deciding whether changes need to be made in operation of the system.

Figures 3 and 4 show the concentrations of chromium and TCE in the ground water when EPA
conducted its first major sampling event in April/May of 1995. Figures 5 and 6 show the
chromium and TCE concentrations in ground water from the most recent (May 1997) sampling
event  These figures show the reduction in the highest chromium concentrations along the
centerline of the plume. Figure 7 further illustrates the generally downward trend (with the
exception of (MW-14E) in chromium concentrations along the center line of the plume.  Figure 8
shows the trends in the TCE data. These data show that some wells, in particular AMW-12A and
MW-14E, have increasing TCE concentrations over the last two years.

EPA has determined through its monitoring program that, although the majority of the
contamination is being controlled and significant volumes of contaminated water have been
extracted and treated, it could take an additional ten to fifteen years to reduce chromium to
below the federal drinking water standard (100 parts per billion) at the current pumping rate of
approximately 100 gallons per minute (gpm). A similar calculation has not yet been made for
removal of the VOCs;  however, EPA expects that removal of the VOC contamination will take
at least this long at current rates.

In 1996, EPA installed additional temporary and permanent monitoring wells near the leading
edge of the plume and along NB 30th Street. The purpose of installing these wells was to
determine if contaminated ground water had moved beyond the capture zone of the last two
extraction wells. Data collected from the wells on ME 30th Avenue in October 1996 indicate that
chromium and VOCs have reached these wells, but at levels below  drinking water standards.  In
the May 1997 sampling event, chromium and VOCs were not detected.  This may be the result of
an unusually high water table caused by heavy rains during the winter of 1996-1997.  EPA will
sample these wells in October 1997, during the low water table season, to see if contaminant
concentrations seen in the October 1996 sampling will be replicated. Additional monitoring

                                          11

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                                                                                                BOC GASES
                                                                                                SOIL OU
      LEGEND
    t  = 1

  250  = 250

 5000  - 5.000

20.000  - 20.000
               (ppb) TOTAL CHROMIUM

                 (ppb) TOTAL CHROMIUM

                  (ppb) TOTAL CHROMIUM

                   (PPb) TOTAL CHROMIUM
       FIGURE NO. 3
Report  BOOMSNUB/AIRCO (BOC CASES)
Dome     INTERIM ACflOH ROD
I If owing  No
            CHR -0595
                                     SITE-WIDE  GROUNDWATER OU
                                CHROMIUM  CONCENTRATIONS  MAY  1995
ENVIRONMENTAL
  PROTECTION
    AGENCY
   Region  10

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                                               SITE-WIDE GROUNOWATER OU
tRiCHiOROETHENE

 TRiCHlOROETHENE
    = i  ^q/L

 10  = 10

MX)  - 500 M9/L

    = 5.000
                                                                              ENVIRONMENTAL
                                                                                PROTECTION
                                                                                  AGENCY
                                                                                 Region 10
                   SITE-WIDE GROUNDWATER  OU
           TRICHLOROETHENE CONCENTRATIONS MAY  1995
     BCX)MSHUB/AIRCO (BOC GASES)
Nome     INTERIM ACtlON ROD

-------
        .
        NO
        /MW-29,
        «ND    !
        A MW - 78
        NO
      LEGEND


      I  = t Mq/L (ppb) TOTAL CHROMIUM

    100  = 100 ftq/i (ppb) TOTAi CHROMIUM

     IK  -- I.OOOM g A  (ppb) TOTAL CHROMIUM

    I OK  = 10.000 pq A (ppb) TOTAi CHROMIUM

     NO  = COMPOUND NOT DETECTED
        FIGURE  NO. 5

Report BOOMSNUB/AIRCO (80C GASES)
Nome     INTERIM ACTION ROD
       No
CHR-0597
                                              SITE-WIDE GROUNDWATER OU
                         SITE-WIDE GROUNDWATER  OU
                    CHROMIUM CONCENTRATIONS MAY  1997
                                                                                   eoc CASES
                                                                                   SOIL OU
                                                                                       PW-IB I
                                                                                       1500    ~~
ENVIRONMENTAL
  PROTECTION
    AGENCY
   Region  10

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                                                        SITE-WIDE GROUNDWATER OU
      .MW-JO
       NO
       ,UW-?9 .
      • HO
       >Mw-?a
       NO
      LEGEND


      1  - I  M9A (PPb) TRICHLOROETHENE

    If  =10^9/1 (opb) TRlCHI OROOHENE

    bOO  = 500,u9A (PP") IK"CMLORO£THENE

    5K  = 5,000 M9/1  (PPb) IRiCHLOROCTHENE

    NO  = COMPOUND NOT DETECTED

      J  = ESTIMATED VALUE
                                                                                                    ANW-I2A   '
                                                                                                    19JOOJ
                                                         BOOMSNUB-
                                                         SOIL 5u
        FIGURE NO. 6
      BOOMSNUB/AIRCO (BOC GASCS)
Nome     INTERIM ACTION ROD
(Vowing No
TCE-0597
                         SITE-WIDE GROUNDWATER  OU
                TRICHLOROETHENE CONCENTRATIONS MAY  1997
ENVIRONMENTAL
  PROTECTION
     AGENCY
   Region  10

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120.000
    Apr-93
                                         FIGURE 7
                         CHROMIUM CONCENTRATIONS IN SITE WELLS
                                                                                       -PW-1B
                                                                                       -MW-14E
                                                                                       -MW-18D
                                                                                       -MW-20D
                                                                                       -MW-21D
                                                                                       -MW-25D
Nov-93
                                                               May-97

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             FIGURE 8
TCE CONCENTRATIONS IN SITE WELLS
                                                          AMW-12AI
                                                          PW-1B
                                                          MW-14E
                                                          MW-18D
                                                          MW-20D
                                                          MW-21D
                                                          MW-25D
                                                May-97

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wells, however, are needed between this last set of monitoring wells and extraction wells MW-25
and MW-26 to determine if this portion of the ground-water contaminant plume warrants
extraction and treatment.

                               6.0 RISK ASSESSMENT

Since a Risk Assessment has not yet been completed for this Site, EPA is unable to characterize
the combined risk from the contaminants in soil and ground water at this time.  As part of the
Site Evaluation at the BOC Gases Soil OU, HOC Gases will complete a streamlined risk
evaluation.  Data collected during the Site Evaluation will be combined with data collected
during the RI for the Boomsnub Soil and Site-Wide Ground-Water OUs and used to prepare a
site-wide baseline Risk Assessment.

The most recent (May 1997) monitoring data show that average concentrations of chromium and
TCE are far in excess of the federal drinking water standard of 100 ppb and 5 ppb, respectively.
The average chromium concentration in the untreated ground water entering the treatment plant
is 4,360 ppb. The average TCE concentration is 2,020 ppb.

Actual or threatened releases of hazardous substances from the Site, if not addressed by
implementing the response actions selected in this Record of Decision (ROD), may present an
imminent and substantial endangerment to public health, welfare, or the environment.

            7.0 GOALS AND OBJECTIVES OF THE INTERIM ACTION

The goal of the interim action is to contain contaminated ground water in  the Alluvial aquifer and
prevent its spread into the Upper Troutdale aquifer, the regional water supply, which lies below
the Alluvial aquifer. The nearest public water supply well for CPU, the local water purveyor in
the area, is in the Upper Troutdale aquifer and is within 2,000 feet of the leading edge of the
contaminant plume. CPU provides water to more than 60,000 customers. Even though the
contamination to date is found in the Alluvial aquifer, which is not the regional water supply,
there are known breaches in the aquitard separating the two aquifers, and TCE has been found in
at least one private well and one monitoring well in the Upper Troutdale aquifer.

This action is an administrative procedure needed to secure long-term  funding, called Remedial
Action Funds, for site cleanup  For the past two and one half years, EPA  has used funds from its
Removal Program to pay for the operation and maintenance of the ground-water
extraction/treatment system. Since operation of the system will continue  for a number of years.
EPA believes it is appropriate to secure long-term funding for operation of the system and
discontinue using Removal Program funds.  The interim action ROD will allow EPA to  access a
more appropriate source of cleanup money called Remedial Action funds. In order to obtain
these funds, EPA must document the decision to continue treating ground water in an interim
action ROD.
                                          18

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            8.0 DESCRIPTION OF REMEDIAL ACTION ALTERNATIVES

This section describes alternatives only for the interim action for the Ground-Water OUat the
Site. This is the only OU being addressed in this interim action.

Two alternatives were under consideration: (1) no action, and (2) operate the current ground-
water extraction/treatment system and make improvements to the extraction and monitoring
network to more efficiently clean up the contaminated ground water.

8.1    Alternative 1: No Action

EPA is required to consider the "no-action" alternative to compare risks and benefits of other
cleanup approaches. Under this alternative, both the treatment plant and the ground-water
extraction system would be abandoned, and treatment of contaminated ground water would
cease. This action has no capital or operations and maintenance costs, but would have some shut
down costs.

This action, however, has significant environmental costs.  Abandonment of the system would
result in the plume migrating unchecked with the potential to reach the Upper Troutdale aquifer,
the regional water supply, and the CPU well field.

8.2    Alternative 2: Operate Existing System and Improve the Extraction/Treatment
       System and Plant Facilities

Under this alternative, EPA would keep the existing ground-water extraction/treatment plant in
operation and make routine repairs as needed. EPA would also make improvements to the
extraction and monitoring, network and plant facilities. These improvements would include
installing additional monitoring wells near the leading edge of the plume to determine the need
for more extraction wells, and connection of the wells to the extraction network, if necessary. In
addition, some extraction, wells and vaults would be upgraded as necessary to prevent infiltration
of water during storm events. Finally, additional space would be built or acquired for office use
and for storage of-new and used resin, tools, parts and equipment, the telemetry system, and other
O & M items.

The approximate cost of Alternative 2 is shown below.

O & M of Existing System: $800,000/year

Improvements to the System: $300,000

It is expected that this interim action would operate for two to three years until implementation
of the final remedial action for the Site.
                                          19

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                9.0  COMPARATIVE ANALYSIS OF ALTERNATIVES

Each remedial alternative under consideration must be evaluated according to specific criteria.
The purpose of this evaluation is to promote consistent identification of the relative advantages
and disadvantages of each alternative. There are nine criteria by which feasible remedial
alternatives are evaluated. Although all nine criteria are important, they are weighted differently
in the decision-making process. The nine criteria are summarized in Table 2. The following is
EPA's evaluation of the alternatives.

9.1     Overall Protection of Human Health and the Environment

Alternative 2 is protective of public health and the environment. Operation of the
extraction/treatment system will ensure that contamination is contained. Installation of
additional monitoring  wells will assist EPA to determine the concentration of contaminants in
the portion of the ground-water plume that has moved beyond the capture zone of the extraction
system, and extract and treat this water, if necessary.  Other  system improvements will allow
EPA to operate and maintain the extraction/treatment system with lower costs and fewer
shutdowns.

The No-Action alternative is not protective. It would allow  the contaminant plume to advance
and potentially reach the CPU water supply wells in the Upper Troutdale aquifer.

9.2     Compliance with ARARs

Implementation of Alternative 2 is an interim action that will achieve the objective of controlling
the migration of contaminated ground water in the Alluvial aquifer. The alternative proposed is
an interim measure and will become part of the final cleanup action that will attain the
"applicable or relevant and appropriate requirements" (ARARs). ARARs relating to the wastes
generated from the operation of the ground-water extraction/treatment system apply while this
interim action is implemented. These ARARs will be met during operation of this alternative.
Final ARAR-compliant actions will be identified as part of the site-wide RI/FS and final Record
of Decision.

The No-Action alternative does not comply with state ARARs for protection of ground water.

9.3    Long-Term Effectiveness and Permanence

Alternative 2 provides the greatest potential for minimizing risks from contaminated ground
water over the long term. The ground-water extraction/treatment system will continue to operate,
which will control and clean up the contaminant plume, thus protecting the Upper Troutdale
aquifer. The improvements to the existing extraction and monitoring network will allow EPA to
optimize the operation of the system and better understand and control the movement of ground-
water contamination.  Installation of additional monitoring  wells will assist EPA in determining
                                          20

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                                           Table 2
                                    Evaluation Criteria
EPA uses nine criteria to evaluate and compare alternatives for a given site. With the exception of the
no-action alternative, all alternatives must meet the first two "threshold" criteria. EPA uses the next five
criteria as "balaxing" criteria for comparing alternatives and seiectirg a preferred alternative. After public
comment. EPA may alter its preference on the basis of the last two  "modifying" criteria.

Threshold Criteria

1. Overall Protection of Human Health and the Environment - How well does the alternative protect
human health and the environment?

2. Compliance with Regulations - Does the alternative meet all applicable or relevant and appropriate state
and federal environmental laws (ARARs), or if not, is a waiver justified?

Balancing Criteria

3. Long-term Effectiveness and Permanence • How well does the alternative protect human health and the
environment after cleanup goals have been reached? What, if any, risks will remain at the site? What is the
adequacy and reliability of controls?

4. Reduction of Toxicity, Mobility, or Volume - Is the toxicity, mobility, and volume of the hazardous
substance significantly reduced through treatment? What are the type and quantity of residuals?

5. Short-term Effectiveness - Are there potential adverse effects to either the community, site workers, or
the envirounent during cc«stru<3ic« or mplem«tatk»                 How fast does the alternative reach
the cleanup goal?

6. Implementability - Is the alternative bom technically and administratively feasible? Has the technology
been used successfully on other similar sites?

Modifying Criteria

7. Cost - What are the estimated  present worth costs of the alternative?

8. State Acceptance - What are the state's comments or concerns about the alternatives considered and about
the preferred alternative? Does the state support or oppose the preferred alternative?

9. Community Acceptance - What are the community's comments or concerns about the alternatives
considered and about the preferred.alternative? Does the community generally support or oppose the
preferred alternative?
                                             21

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the concentration of contaminants in the portion of the ground-water plume that has moved
beyond the capture of the extraction network. These wells could then be converted to extract this
water, if necessary. Other improvements will allow EPA to operate and maintain the
extraction/treatment system with lower costs and fewer shutdowns.

The No-Action alternative would not minimize risks from contaminated ground water. It would
result in the contamination moving unchecked, potentially reaching the CPU water supply wells
in the Upper Troutdale aquifer.

9.4    Reduction in Toxicity, Mobility, or Volume Through Treatment

Alternative 2 is designed to reduce the toxicity, mobility, or volume of contaminants in the
ground water. It would also address the potential problems associated with the portion of the
plume that has moved beyond the capture of the existing system. The No-Action alternative
would not reduce the toxicity, mobility, or volume of contamination.

9.5    Short-Term Effectiveness

Alternative 2 provides the most protectiveness in the short term. Control of the ground-water
contamination would continue through extraction and treatment of contaminated ground water.
Installation of additional monitoring and/or extraction wells under this alternative would cause
some short-term disruptions and inconvenience during construction.

The No-Action alternative falls short of achieving the goals established for this interim action
(containment of ground-water contamination), causing potentially adverse effects in the short
term. If no action is taken, ground-water contamination will move unchecked until a final action
is taken at the Site.

9.6    Implementability

Both alternatives considered can be completed successfully with varying degrees of difficulty.
Alternative 2 is more difficult to implement because, in addition to current Site activities and
planned improvements, it requires negotiation with land owners for access for construction
activities. The No-Action Alternative is less difficult to implement since it would result in shut
down of the extraction/treatment system.

9.7     Cost

The estimated costs for the two alternatives are summarized below:

Alternative 1 No Action

No capita] or O & M costs
                                          22

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Alternative 2 Operate and Make Improvements to the Existing System

$300,000 capital costs and $800,000 annual O & M costs

Alternative 2 is the more costly of the two to implement. System improvements would cost
approximately $300,000 and annual O & M costs are approximately $800,000.  O & M costs are
projected only for the next two to three years until a final remedy for the Site is selected and
implemented.

The No-Action alternative is the less costly alternative.  This "no cost," however, ignores the
larger environmental impact that would be potentially absorbed by the local community if the
contamination reaches the Upper Troutdale aquifer and contaminates the well fields operated by
CPU. Likewise, it does not include the loss of any private water  supply wells that could be
impacted by this action.

9.8    State Acceptance

The Washington State Department of Ecology evaluated the alternatives presented in the
proposed plan, supported the preferred alternative identified by EPA, and concurs with the
selected remedy for this interim action.

9.9    Community Acceptance

EPA received one comment on the proposed plan. This comment was in support of EPA's
preferred alternative to continue extraction/treatment at the Site, and is discussed in the attached
responsiveness summary.

                           10.0 THE SELECTED REMEDY

Based upon the evaluation of the above alternatives, EPA's selected remedy is Alternative 2.
This remedy meets the threshold criteria of protecting human health and the environment and
meets ARARs. It also achieves optimum compliance with the five balancing criteria: long-term
effectiveness, short-term effectiveness, implementability, reduction in toxicity, mobility, or
volume through treatment, and cost. It also best satisfies the modifying criteria of state and
community acceptance. The selected remedy includes the following actions:

       • operation and maintenance of the existing extraction/treatment system;

       • installation of additional monitoring wells near the leading edge of the plume to
          determine the need for more extraction wells, and connection of additional wells to
          the extraction netwoik, if necessary;

       • upgrading some extraction wells and vaults as necessary to prevent infiltration of
          water during storm events, and
                                          23

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          acquisition or construction of office and storage space for the extraction/treatment
          and telemetry systems, new and used resin, as well as for tools, parts and equipment
          needed fox O & M of the system.

EPA will continue to operate and maintain the existing treatment plant pending the final remedial
action at the Site. The repairs and improvements to the extraction system and plant facilities
should reduce long term O & M costs and periodic shutdowns of the system. Off-site disposal of
hazardous waste from this remedial action (e.g., the resin used to remove chromium from ground
water) will go to a facility acceptable under EPA's Off-Site Disposal Rule.

EPA will routinely sample selected ground-water extraction and monitoring wells and conduct
other studies to optimize the efficient extraction of contaminated ground water. The ongoing
operation and maintenance of the extraction/treatment system will be conducted in conjunction
with the RI/FS for the Boomsnub Soil and Site-Wide Ground-Water OUs, and the Site
Evaluation at the HOC Gases Soil OU.  Data collected during ongoing activities will be used in
the development of the RI/FS and the final remedial action at the Site.

EPA believes that additional monitoring and/or extraction wells are needed to reduce the
potential risk from that portion of the ground-water contamination that has migrated beyond the
current capture zone of the leading edge extraction wells. At the time these wells were
connected to the extraction network (December 1994), significant chromium contamination was
immediately detected in them. EPA increased the pumping rate of these wells to create a
hydraulic barrier and prevent the majority of the contamination from advancing. However,
modeling indicates, and  monitoring verifies, that an unknown quantity of contamination has
moved beyond the capture of the two furthermost extraction wells and is migrating in a
west/northwest direction. Additional wells are needed between EPA's monitoring wells (MW-
28, MW-29, and MW-30) and the last line of extraction wells (MW-25 and MW-26, as depicted
in Figure 2). The new monitoring wells will be used to determine the concentration of
contamination in the portion of the plume that has moved beyond the capture of the outermost
extraction wells. The data collected will assist EPA to determine whether the contaminant
concentrations warrant extraction and treatment The new monitoring wells will be sized for
conversion to extraction wells, should conversion become necessary.

The cost (+50 to -30%) of the selected remedy is approximately $300,000 in capital costs for
monitoring and extraction well installation and other system improvements and $800,000 in
annual O & M costs.

                       11.0 STATUTORY DETERMINATIONS

11.1   Protection of Human Health and the Environment

The selected interim action protects human health and the environment.  The No-Action
alternative does not ensure long-term protection of human health or the environment because it
does not contain the contaminated ground water.  Protection of human health and the
environment is obtained by containing, extracting and treating contaminated ground water.

                                         24

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Long-term operation and maintenance will be required for the selected remedy. The
effectiveness of the interim remedy will be evaluated as part of the final RI/FS for the Site to
determine if additional source control and/or ground-water treatment actions are required.

11.2   Compliance with Applicable or Relevant and Appropriate Requirements

The selected remedy will be designed and implemented to attain all action specific, chemical
specific, and location specific ARARs identified in this section. Because this is an interim
remedial action, ground-water cleanup standards are not being established in the ROD.

Clean Air Act, 42 U.S.C. §§ 7412, 766l(a); General Regulations for Air Pollution Sources, WAC
173-400; Emission Standards and Controls for Emitting Volatile Organic Compounds, WAC
173-490; Southwest Washington Air Pollution Control Agency Regulations I. II & III

The VOCs in the contaminated ground water are removed by an air stripper. Air stripping
removes the VOCs from ground water and transfers them to the air in a gaseous state. The air is
treated using carbon adsorption to remove the VOCs. BOC Gases operates and maintains this
portion of the treatment system. BOC Gases obtained a permit from the Southwest Washington
Air Pollution Control Agency to operate the air stripper prior to the Site being listed on the NPL.
Operation of this portion of the treatment system does and will continue to comply with the
substantive requirements of the WAC 173^00 as implemented by SWAPCA.  Further,
Washington Emission Standards and Controls for Emitting Volatile Organic Compounds (WAC
Chapter 173-490) establishes standards for specific VOC source emissions. These standards
establishing emission standards for the air stripping system and the granular activated carbon unit
are incorporated into the permit being met at the Site.

Clean Water Act, 33 U.S.C § 1311; 40 CFR 403.5; Water Pollution Control Act, RCW 90.48;
Water Resources Act, RCW 90.54; Grant of Authority Sewerage Systems, WAC 173-208

These regulations apply to the off-site disposal of the treated ground water and technically are
not an ARAR at this site. ARARs apply to those actions which occur on-site.  Since this is an
off-site disposal action, EPA has a permit for its discharge to the City of Vancouver's
wastewater treatment system and will meet the requirements set forth  in the permit EPA will
also meet the requirements of 40 CFR 403.5, that prohibit dischargers into publicly owned
treatment works from introducing pollutants that pass through the  facility without treatment or
that interfere with the treatment works.

Resource Conservation and Recovery Act, 42 U.S.C. §§ 6921-22; 40 CFR Part 262 Subparts A,
B, C, andD; 40 CFR Part 265, Subparts I, AA, BB. and CC; Washington State Dangerous Waste
Regulations, WAC 173-303-070, 173-303-170 to-200, 173-303-630.

The hazardous waste generated by the operation of the groundwater treatment system includes
the chromium-contaminated resin used to remove chromium from the ground water. This waste
is characterized and stored temporarily prior to off-site shipment for disposal at a permitted

                                          25

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facility. EPA has installed a storage area to meet the substantive requirements of these
regulations for the proper on-site storage of hazardous waste prior to off-site disposal.  EPA will
meet the federal and state regulations requiring identification of hazardous wastes and proper
handling of these wastes prior to disposal.

Executive Order 11990, Executive Order for Protection of Wetlands

This Executive Order requires EPA to avoid long- and short-term adverse impacts associated
with the destruction or modification of wetlands and avoid direct or indirect support of new
construction in wetlands whenever there is a practicable alternative.

Some of the extraction system's wells and vaults are either within or adjacent to designated
wetlands. This interim action includes the continued operation of these wells and modification to
some extraction wells and vaults to prevent infiltration of water during storm events. Operation
of and improvements to the extraction system are necessary to maintain control of and clean up
the ground-water contamination at the Site.  While there is no practical alternative to these
actions, care will be taken to minimize damage to these wetlands during construction activities.

Solid Waste Management-Reduction & Recycling Act, RCW 70.95;  Minimum Functional
Standards for Solid Waste Handling, WAC173-304.

These requirements apply to the disposal of non-hazardous waste. All non-hazardous waste
generated will be disposed off-site in accordance with these regulations. Since disposal occurs
off-site, this law and regulations technically are not ARARs. Operation of the
extraction/treatment system will comply with these regulations.

Pollution Disclosure Act of 1971, RCW 90.52.040.

This law requires that wastes are to be provided with all known, available, and reasonable
methods of treatment prior to their discharge or entry into waters of the state, and apply to the
disposal of the treated ground water generated by the extraction/treatment system.

The contaminated ground water will be treated, using ion exchange and air stripping, prior to
discharge to the City of Vancouver sanitary sewer. This treatment of ground water prior to
discharge will comply with the requirements of this Act.

Water Well Construction Act. RCW 18.104; Minimum Standards for Construction and
Maintenance of Wells. WAC 173-160- 500 to -560

These regulations are applicable to the construction of additional monitoring and extraction wells
at the Site. The construction of new monitoring and extraction wells will meet the standards set
for proper construction of resource protection wells.
                                           26

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113   Utilization of Permanent Solutions and Alternative Treatment Technologies or
       Resource Recovery Technologies to the Maximum Extent Practical

Extracting and treating ground water to remove contaminants is a permanent solution. Overall,
the interim actions selected represent the best balance of alternatives with respect to the selection
criteria, given the limited scope of the action.

11.4   Cost Effectiveness

The continued operation of the ground-water extraction/treatment system provides overall
effectiveness proportionate to its costs, such that it represents a reasonable value for the money to
be spent

11.5   Preference for Treatment as a Principal Element

The objective of the selected interim remedy includes containing the migration of the
contamination. It is achieved through extraction and treatment of contaminated ground water.
The selected remedy meets the statutory preference for using treatment as a principal element.

               12.0  DOCUMENTATION  OF SIGNIFICANT CHANGES

The selected remedy does not contain any significant changes from the preferred alternative
originally presented in the Proposed Plan.
                                         27

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                                     Appendix
A     Responsiveness Summary
B     Administrative Record Index

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       APPENDIX A




RESPONSIVENESS SUMMARY

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                          RESPONSIVENESS SUMMARY

Introduction

The purpose of this responsiveness summary is to summarize and respond to public comments
submitted on the Proposed Plan for Interim Action at the Boomsnub/Airco Superfund Site. In
the Proposed Plan, issued July 28, 1997, the U.S. Environmental Protection Agency (EPA)
described alternatives considered for the cleanup of the ground water at the Site. These
alternatives were based on information in the Administrative Record.  The public comment
period for the Proposed Plan was held from July 30, 1997 to August 29, 1997. This
responsiveness summary meets the requirements of Section 117 of the Comprehensive
Environmental Response, Compensation, and Liability Act of 1980 (CERCLA) as amended by
the Superfund Amendments and Reauthorization Act of 1986 (SARA).

Since the interim action is primarily an administrative procedure to secure long-term funding,
EPA did not automatically hold a public meeting, but notified the public that one would be held
if there was sufficient public interest. Since no calls were received requesting a public meeting,
none was held. EPA received one written comment on the proposed plan.

Response to Comments Received During the Public Comment  Period

Comment: EPA received one comment on the proposed plan,  from the N.E. Hazel Dell
Neighborhood Association. The Neighborhood Association supported EPA's preferred
alternative to continue extraction/treatment of the contaminated ground water and make
improvements to the system.

Response:  EPA is appreciative of the Neighborhood Association's support and thanks them for
their comment.

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         APPENDIX B




ADMINISTRATIVE RECORD INDEX

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                                TABLE OF CONTENTS
             BOOMSNUB/AIRCO - INTERIM ACTION AOMIN. RECORD (BIAAR)
                                 September 23,1997
0.  0 TABLE OF CONTENTS/INDEX
1.  0 SITE IDENTIFICATION
   1. 1 Correspondence
   1. 2 Preliminary Assessment
   1. 3 Site Inspection Report
   1. 4 RCRA Compliance Evaluation Inspection
   1. 5 Sampling & Well Log Data
   1. 6 NPL Documentation
   1. 7 Treatment Technology Alternatives Evaluation
   1. 8 Groundwater Monitoring Reports
   1. 9 State of Washington Reports
     1.  9. 1 Hydrogeologic Investigations
     1.  9. 2 Interim Actions & Work  Plans
     1.  9. 3 Groundwater Well Installation
   1.11  Removal Activities
     1.11.  2 Action Memoranda
     1.11.  3 Operation Observations/Sump Lining Reports
     1.11.  6 Sampling Activities  (3 Volumes)
     1.11.  9 OSC Report
2.  0 REMEDIAL INVESTIGATION/FEASIBILITY STUDY (RI/FS)
   2. 2 RI/FS Scoping
     2.  2. 1 Correspondence
     2.  2. 2 Meetings/Agenda
   2. 3 Sampling and Analysis Plans
   2. 4 Sampling Data  (3 Volumes)
                                                                          Page  1

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                                TABLE OF CONTENTS
              BOOMSNUB/AIRCO - INTERIM ACTION ADMIN. RECORD (BIAAR)
                                 September 23,1997
     2. 4.  1  Noticed Improper Sample Submitted
3. 0 RECORD OF DECISION (ROD)
   3. 1 Record of Decision
   3. 2 Proposed Plan for Interim Action
   3. 3 Memos Relating to ROD
4. 0 AIRCO/(BOC GASES) SITE EVALUATION
   4. 1 Correspondence
   4. 2 Reports - Pre-EE/CA  (6 Volumes)
6. 0 REMEDIAL ACTION
   6. 1 Correspondence
   6. 2 Sampling Data  (7 Volumes)
     6. 2. 1 Sampling & Analysis Plans
     8. 2. 2 Monthly Monitoring Reports
     6. 2. 3 QA Completeness Check
     6. 2. 4 Geoprobe/Data Validation
   6. 3 Step Drawdown Test
   8. 4 Operation and Maintenance
     8. 4. 1 Systems Operation Report
     6. 4. 2 Emergency Actions
   6. 5 Disposal Information
   6. 6 Extraction System Modeling
8. 0 STATE INVOLVEMENT/COORDINATION
   8. 1  Correspondence
     8. 1. 1 Formal Correspondence
     8.1.2 Handwritten Correspondence
                                                                          Page  2

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                              TABLE OF CONTENTS
             BOOMSNUB/AIRCO - INTERIM ACTION AOMIN. RECORD (BIAAR)
                               September 23,1997
9. 0 MUNICIPAL/LOCAL GOVERNMENT INVOLVEMENT
   9. 1 Correspondence
   9. 2 Discharge Permits
   9. 3 PGG Report
13. 0 HEALTH ASSESSMENTS
  13. 1 Correspondence
  13. 2 ATSDR Hearth Assessment
14. 0 NATURAL RESOURCE TRUSTEES
  14. 1 Correspondence
16. 0 PUBLIC PARTICIPATION
  16. 2 Community Relations Plan
  16. 3 Public Notices
  16. 5 Fact Sheets/Press Releases
  16. 9 Newspaper Articles
  16.10 Comments on Interim Action Proposed Plan
16. 0 GUIDANCE/REFERENCE MATERIAL
  18. 3 Technical Reference Material
                                                                      Page  3

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(BIAAR) BOOMSNUB/AIRCO - INTERIM ACTION ADMIN. RECORD INDEX



HEADING:   0. 0. .  .        TABLE OF CONTENTS/INDEX
9/23/97                     U.S. Environmental Protection Aoencv. ReotenlO

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(BIAAR) BOOMSNUB/AJRCO - (INTERIM ACTION ADMIN. RECORD INDEX

HEADING:   1.0.  .  .        SITE IDENTIFICATION

SUB-HEAD:   1. 1. . .   Vol. 1 -    Correspondence

 1. 1. . .  Vol. 1  -   1037001    DOC ID:  40843  IMAGED
      DATE:                    PAGES:      1
AUTHOR(S):                                           ADDRESSEE(S):
      Unknown                                        Unknown
DESCRIPTION: Historical description of site.

 1. 1. . .  Vol.1  -   1037002    DOC ID:  40844  WAGED
      DATE:  5/12/81            PAGES:      1
ALTTHOR(S):                                           ADORESSEE(S):
      Southwest Air Pollution Control Authority               State of Washington Dept of Ecology
DESCRIPTION: Complaint form.

 1. 1. . .  Vol.1  -   1037003    DOC ID:  40845  IMAGED
      DATE:  6/10/82            PAGES:      2
AUTHOR(S):                                           ADDRESSEE(S):
      Howard Steeley/State of Washington                  State of Washington Dept of Ecology
DESCRIPTION: Recommendation for Enforcement Action.

 1. 1. . .  Vd.1  -   1037004    DOC ID:  40846  IMAGED
      DATE:  6/11/82            PAGES:      1
ALTTHOR(S):                                           ADORESSEE(S):
      Jon Neel/State of Washington Dept of Ecology          Gal Keyes/State of Washington
DESCRIPTION: Memo regarding Recommendation for Enforcement Action.

 1. 1. . .  Vol.1  -   1037005    DOCK):  35164  WAGED
      DATE:  6/18/82            PAGES:      2
AUTHOR(S):                                           ADORESSEE(S):
      Jon NeeVState of Washington Dept of Eooiogy          Gal Keyes/State of Washington
DESGRPTION: Memo clarifying 6/11/82 memo reganflng enforcement action.

 1. 1. . .  Vol.1  -   1037006    DOC ID:  35165  WAGED
      DATE:  6/24/82            PAGES:      2
AUTHOR(S):                                           ADORESSEE(S):
      Bruce A. Cameron/State of Washington                Jason MMett/Boomsnub Corp.
DESCRIPTION: Order Docket No. DE82-375 ordering Boomsnub to take appropriate action.

 1.1...  Vol.1-   1037007    DOC ID:  35166  IMAGED
      DATE:  8/24/82            PAGES:      2
AUTHOR(S):                                           ADDRESSEE(S):
      Gal Keyes/State of Washington                      Jason Ntofett/Boomsnub Corp.
DESCRIPTION: Letter regarding Docket No. DE 82-375 and response letter from attorney.

 1.1...  Vol.1-   1037008    DOC ID:  35167  WAGED
      DATE:  8/25/82            PAGES:      2
ALTTHOR(S):                                           ADDRESSEE(S):
      Howard Zenier/Zenier & Associates                   Ed Takttch/Pacfflc Northwest Plating
DESCRIPTION: Letter suggesting ideas for dealing with groundwater pollution abatement order from Dept of
              Ecology.

 1. 1.  .  .  Vol.1  -   1037009    DOC ID:  35168  WAGED
      DATE:  8/27/82            PAGES:      2
AUTHOR(S):                                           ADDRESSEE(S):
      Edward TaWtch/Padflc NW Plating                    Gal Keyes/State of Washington
9/23/97                       U.S. Environmental Protection Agency, Region 10     Page

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(BIAAR) BOOMSNUB/AJRCO - INTERIM ACTION AOMIN. RECORD INDEX

DESCRIPTION:  Letter describing engineering plans and specifications for complying with Dept of Ecology's order
               on wastewater containment

 1.1...  Vol.1-   1037010    DOC ID:   35169 IMAGED
      DATE:   12/15/82           PAGES:      2
AUTHOR(S):                                           ADDRESSEE(S):
      Jonathan Neel/State of Washington Dept of Ecology      Edward Takitch/Pacific NW Plating
DESCRIPTION:  Letter outlining Dept of Ecology's concerns about wastewater engineering plans and specifications.

 1. 1.  .  .  Vol.1 •   1037011    DOC ID:   35170 IMAGED
      DATE:   12/23/82           PAGES:      2
AUTHOR(S):                                           ADDRESSEE(S):
      Jason Niblett/Pacific NW Plating                      Jonathan Neel/Washington State Department of
                                                      Ecology
DESCRIPTION:  Letter requesting more time to comply with Dept of Ecology's requests.

 1. 1.  .  .  Vol.1 -   1037012    DOC ID:  35171  IMAGED
      DATE:   1/12/83            PAGES:       1
AUTHOR(S):                                           ADDRESSEE(S):
      WDOE                                           Washington State Department of Ecology
DESCRIPTION:  Phone conversation record of conversation with Ed Takttch and Jason Nibiett regarding plating
              tanks.

 1. 1. .  .  Vol.1 -   1037013    DOC ID:   35172  IMAGED
      DATE:   1/31/83            PAGES:       2
AUTHOR(S):                                           ADDRESSEE(S):
      Jason Niblett/Pacific NW Plating                      Jon Neel/Washington State Department of
                                                      Ecology
DESCRIPTION: Submittal of wastewater plans and specifications.

 1. 1. .  .  Vol.1 -   1037014    DOC ID:   35173  WAGED
      DATE:   2/25/83            PAGES:       1
AUTHOR(S):                                           ADDRESSEE(S):
      Jonathan Neel/State of Washington Dept of Ecology      Jason Niblett/Pacific NW Plating
DESCRIPTION: Letter allowing two months to complete Installation of wastewater collection system, and request
              for submittal of a revised plan.

 1. 1. .  .  Vol.1 -   1037015    DOC ID:   35174  IMAGED
      DATE:   3/9/83             PAGES:       2
AUTHOR(S):                                           ADDRESSEE(S):
      Jason Niblett/Pacific NW Plating                      Jon Neel/Washington State Department of
                                                      Ecology
DESCRIPTION: Submittal of revisions to wastewater treatment plans.

 1. 1. .  .  Vol.1 -   103701*    DOC ID:   35175  IMAGED
      DATE:   3/11/83            PAGES:       2
AUTHOR(S):                                           ADDRESSEE(S):
      Ed TaUtcn/Pacific Northwest Plating                   Jon Neel/State of Washington Dept. of Ecology
DESCRIPTION: Submittal of Spill Prevention Control and Counter Measure plans.

 1.1. .  .  Vol.1 -   1037018    DOC ID:  35176  IMAGED
      DATE:   4/25/85            PAGES:       1
AUTHOR(S):                                           ADDRESSEE(S):
      M. A. Olczak/ScJence Applications International          Unknown
      Corporation
DESCRIPTION:  Phone contact report of call to Assessor's office regarding ownership/taxpayer of Pacific NW
              Plating property.
9/23/97                        LI.8. Environmental Protection Ananrv Roninn 1ft

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(BIAAR) BOOMSNUB/AIRCO - INTERIM ACTION ADMN. RECORD INDEX

 1. 1.  . .  Vo<.1  -    1037019    DOC ID:   35177  WAGED
      DATE:   4/25/85            PAGES:      1
AUTHOR(S):       '                                    ADORESSEE(S):
      M. A. Otczak/Sdence Applications International          Unknown
      Corporation       -
DESCRIPTION: Phone contact report of conversation with Howard Steeley of Dept of Ecology about site
              Inspection.

 1. 1.  . .  Vol.1  -    1037020    DOC ID:   35178  WAGED
      DATE:   4/27/85            PAGES:      1
AUTHOR(S):                                           ADORESSEE(S):
      M. A. Otezak/Science Applications International          Unknown
      Corporation
DESCRIPTION: Phone contact report of conversation with Gary Bfckett of Clark County Environmental Health Dept

 1. 1.  . .  Vol.1  -    1037021    DOC ID:   35179  IMAGED
      DATE:   5/23/88            PAGES:      1
AUTHOR(S).                                           ADDRESSEE(S):
      Mark A. Ader/Ecology & Environment Inc.              John Osbom/EPA
DESCRIPTION: Memo stating that a Preliminary Assessment was not necessary as Dept of Ecology had already
              completed a site Inspection.

 1. 1.  . .  Vol.1  -    1037022    DOC ID:   35180  IMAGED
      DATE:   7/20/88            PAGES:      1
AUTHOR(S):                                           ADDRESSEE(S):
      Barrett Tookey/Ecology & Environment Inc.             Unknown
DESCRIPTION: Contact report with Paul Curtis at Pacific NW Plating stating that well sampling was completed
              4/88.

 1.1...  Vo(.1  -    1037023    DOC ID:   35181  IMAGED
   -  DATE:   7/22/88            PAGES:      1
AUTHOR(S):                                           ADDRESSEE(S):
      Barrett Tookey/Ecology & Environment Inc.             Unknown
DESCRIPTION: Contact report wRh Beth Roland at Dept of Ecology regarding monitoring wed samples.

 1. 1.  . .  Vol.1  -    1037024    DOCK):   35182  WAGED
      DATE:   8/9/88             PAGES:      1
AUTHOR(S):                                           ADDRESSEE(S):
      Barrett Tookey/Ecotogy & Environment Inc.            Unknown
DESCRIPTION: Contact report with Paul Stash at Dept of Ecology regarding condition of site.

 1. 1.  .  .  Vol.1  -    1037025    DOC ID:   35183  WAGED
      DATE:   8/9/88            PAGES:      1
AUTHOR(S):                                           ADDRESSEE(S):
      Barrett Tookey/Ecology & Environment Inc.            Unknown
DESCRIPTION: Contact report with Ed TaWteh at Pacific NW Plating regarding hiring Riedel Environmental to
              conduct well sampflng.

 1.  1.  .  .  Vol. 1  -    1037026    DOCD:   35184  WAGED
       DATE:   12/20/88           PAGES:      8
AUTHOR(S):                                           ADDRESSEE(S):
      Thomas Eaton/State of Washington                   Boomsnub Corp.
DESCRIPTION: Letter and Order No. DE 88-S238 advising Boomsnub to take appropriate action regarding
              dangerous wastes.

 1.  1.  .  .  Vol.1  -    1037027    DOC ID:   35165  IMAGED
       DATE:   12/20/88           PAGES:      7
AUTHOR(S):                                           ADDRESSEE(S):


9/23/97                        U.S. Environmental Protection Agency, Region 10    Page       4

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(BIAAR) BOOMSNUB/AIRCO - INTERIM ACTION ADMN. RECORD INDEX

      Thomas Eaton/State of Washington                  Boomsnub Corp.
DESCRIPTION:  Latter and Order No. DE 88-S239 notice of Penalty Incurred and Due.

 1.  1. . .   VoJ. 1 -    1037028    DOC ID:  35186 IMAGED
      DATE:   5/11/91 "          PAGES:      5
ALTTHOR(S):                      .                    ADDRESSEE(S):
      Elizabeth McManus/EPA                           Dave Davies/Washington State Department of
                                                    Ecology
DESCRIPTION:  Memo regarding RCRA violations and description of inspection at Airco on 5/6/92.

 1.  1. . .   Vol. 1 -    1037029    DOC ID:  35187 IMAGED
      DATE:   1/13/93            PAGES:     10
AUTHOR(S):                                          AODRESSEE(S):
      Unknown                                       Unknown
DESCRIPTION:  Group of worksheets describing sampling events done at Boomsnub.

SUB-HEAD:  1.2...  Vol. 1  -    --Preliminary Assessment

 1.  2. . .   Vol.1 -    1037044    DOC ID:  35194 WAGED
      DATE:                    PAGES:      2
AUTHOR(S):                                          ADDRESSEE(S):
      Shapiro & Associates                             JRB Asodates
DESCRIPTION:  Attachment B, RCRA Section 3012 Preliminary Assessment Program Land Use and Demography.

 1.  2. . .   Vol. 1 -    1037045    DOC ID:  35195 WAGED
  1   DATE:                    PAGES:      3
AUTHOR(S):                                          ADDRESSEE(S):
      Shapiro & Associates                             JRB Asociates
DESCRIPTION:  Attachment B, RCRA Section 3012 PreHmbiaiy Assessment Program Surface and Groundwater
              Hydrology.

 1.  2. . .   Vol.1 -    1037046    DOC ID:  35196 MAGED
      DATE:                    PAGES:      1
AUTHOR(S):                                          ADORESSEE(S):
      Engineering Technician Services                     Unknown
DESCRIPTION:  Well grid map.

 1.2...   Vol. 1 -    1037047    DOC ID:  35197 IMAGED
      DATE:                    PAGES:      1
AUTHOR(S):                                          ADDRESSEE(S):
      Unknown                                       Unknown
DESCRIPTION:  Page from 'Geology and Groundwater, Clark County, Washington' with cross-section illustrations
              showing location of groundwater.

 1.  2. . .   Vol.1 -    1037048    DOC ID:  35198 IMAGED
      DATE:   3/19/81            PAGES:      2
AUTHOR(S):                                          ADORESSEE(S):
      State of Washington Dept of Ecology                 Brett Unknown/Unknown
DESCRIPTION:  Inspection Report

 1.  2. . .   Vol.1-    1037049    DOC ID:  35199 IMAGED
      DATE:   6/22/81            PAGES:      5
AUTHOR(S):                                          ADORESSEE(S):
      Brett Betts/State of Washington                     Jon Unknown/Unknown
DESCRIPTION:  Inspection Report with attached memorandum and data sheets.
9/23/97                       U.S. Environmental PrntAcHnn Arranrv Roninn m

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(BIAAR) BOOMSNUB/AJRCO - INTERIM ACTION ADMN. RECORD INDEX

 1. 2. . .   Vol.1 -   1037050    DOC ID:  35200  WAGED
      DATE:  6/22/81            PAGES:      1
AUTHOR(S):                                          ADDRESSEE(S):
      Brett BeOs/State of Washington                      Unknown
DESCRIPTION:  Photo looking east at back of PNW Plating bufldJng.

 1. 2. . .   Vol.1-   1037051    DOC ID:  35201  WAGED
      DATE:  4/28/82            PAGES:      1
AUTHOR(S):                                          ADDRESSEE(S):
      Erie Egbers/Washington State Department of Ecology     Jim Unknown/Unknown
DESCRIPTION:  Inspection Report.

 1. 2. . .   Vol.1 -   1037052    DOC ID:  35202  IMAGED
      DATE:  6/7/82             PAGES:      4
ALTTHOR(S):                              .            ADDRESSEE(S):
      Eric Egbers/Washington State Department of Ecology     Unknown
DESCRIPTION:  Inspection Report with attached Environmental Laboratory Data Summary reports.

 1. 2. . .   Vol.1 -   1037053    DOC ID:  35203  MAGED
      DATE:  9/1/83             PAGES:      2
AUTHOR(S):                                          ADDRESSEE(S):
      Eric Egbers/Washington State Department of Ecology     Frank Unknown/Unknown
DESCRIPTION:  Inspection Report.

 1. 2. . .   Vol.1 -   1037039    DOC ID:  35189  MAGED
      DATE:  5/24/85            PAGES:      1
AUTHOR(S):                                          ADDRESSEE(S):
      EPA                                          Unknown
DESCRIPTION:  Potential Hazardous Waste Ste Preimlnan/ Assessment Summary Memorandum.

 1. 2. . .   Vol.1 -   1037040    DOC ID:  35190  MAGED
      DATE:  5/24/85            PAGES:      1
ALTTHOR(S):                                          ADORESSEE(S):
      EPA                                          Unknown
DESCRIPTION:  Potential Hazardous Waste SKe Preliminary Assessment Part 1 - Site Information and Assessment

 1. 2.  . .   Vol.1-   1037041    DOC ID:  35191  MAGED
      DATE:  5/24/85            PAGES:      1
AUTHOR(S):                                          ADORESSEE(S):
      EPA                                          Unknown
DESCRIPTION:  Potential Hazardous Waste StoPrettrr^ery Assessment Part 2 -Waste Information.

 1. 2.  . .   Vol.1 -   1037042    DOC ID:  35192  MAGED
      DATE:  5/24/85            PAGES:      2
AUTHOR(S):                                          ADDRESSEE(S):
      EPA                                          Unknown
DESCRIPTION:  Potential Hazardous Waste Site Preliminary Assessment Part 3 - Description of Hazardous
              Conditions & Incidents.

 1. 2.  . .   Vol.1 -   1037043    DOC ID:  35193  MAGED
      DATE:  5/24/85            PAGES:       1
AUTHOR(S):                                          ADDRESSEE(S):
      Unknown                                       Unknown
DESCRIPTION:  USGS quadrant map of site assessment area.
 9/23/97                       U.S. Environmental Protection Agency, Region 10     Page

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(BIAAR) BOOMSNUB/A1RCO - INTERIM ACTION ADMN. RECORD INDEX

 1.2. .  .   Vol.1 -   1037038    DOC ID:   35188 WAGED
      DATE:  8/9/85            PAGES:      2
AUTHOR(S):  .                                        ADDRESSEE(S):
      Robert E. Wevft/EPA                              EPA
DESCRIPTION:  Potential Hazardous Waste Site disposition form assigning medium priority to sampling soil and
              groundwater.

SUB-HEAD:  1.3...   Vol. 1  -    Site Inspection Report

 1. 3. .  .   Vol.1-   1037055    DOC ID:   35204 IMAGED
      DATE:  3/1/87            PAGES:     127
AUTHOR(S):                                          ADDRESSEE(S):
      Michael J. Spencer/WDOE                         Unknown
DESCRIPTION:  Phase I & II Site Inspection Report; contains material indexed in Sections 1.1 and 12

 1. 3. .  .   Vol.1-   1037348    DOC ID:   35721  IMAGED
      DATE:  4/1/94            PAGES:     47
AUTHOR(S):                                          ADDRESSEE(S):
      Ann Williamson/EPA                              Chris Field/EPA
DESCRIPTION:  Quality Assurance Sampling Plan.

 1. 3. .  .   Vol.1-   1030276    DOC ID:   67471  IMAGED
      DATE:  11/30/95           PAGES:    379
AUTHOR(S):                                          ADDRESSEE(S):
      William L Carberry/Ecology & Environment, Inc.          Chris D. Field/EPA
DESCRIPTION:  Site Assessment Report

SUB-HEAD:  1. 4.  . .   Vol.1  -    RCRA Compliance Evaluation Inspection

 1. 4. .  .   Vol.1 -   1037054    DOC ID:   35205 WAGED
      DATE:  12/1/88            PAGES:    115
AUTHOR(S):                                          ADDRESSEE(S):
      Jacobs Engineering                               EPA
DESCRIPTION:  Final Report. RCRA CompBance Evaluation Inspection.

              NOTE: Document b located In Boomsnub Removal Administrative Record, Section 12.

SUB-HEAD:  1. 5.  . .   Vol.1  -    Sampling ft Well Log Data

 1. 5. .  .   Vol. 1-   1037056    DOC ID:   35206 IMAGED
      DATE:                    PAGES:     13
AUTHOR(S):                                          ADDRESSEE(S):
      Washington Department of Conservation               Unknown
DESCRIPTION:  Well logs dated 1939 through 10/7/68.

 1. 5. .  .   Vol. 1 -   1037057    DOC ID:   35207 IMAGED
      DATE:                    PAGES:     30
AUTHOR(S):                                          ADDRESSEE(S):
      State of Washington                              Unknown
DESCRIPTION:  Water well reports dated 2/10/71 through 8/13/82.

 1.5. .  .   Vol.1 -   1037058    DOC ID:   35208 IMAGED
      DATE:   2/9/83            PAGES:      2
AUTHOR(S):                                          ADDRESSEE(S):
      State of Washington De^t of Ecology                 Unknown
9/23/97                       U.S. Environmental Protection Aaencv. Reaton 10     Paoe

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(BIAAR) BOOMSNUB/AIRCO - INTERIM ACTION AOMIN. RECORD INDEX

DESCRIPTION:  Olympia Environmental Laboratory Data Summary Report

 1. 5. .  .   Vol.1 -   1037059    DOC ID:   35209 WAGED
      DATE:  3/20/85            PAGES:      4
AUTHOR(S):           -                              ADDRESSEE(S):
      State of Washington                              Unknown
DESCRIPTION:  Pubflc Water Supply System Listing.

 1.5. .  .   Vol.1 -   1037062    DOC ID:   35212 IMAGED
      DATE:  1/1/87            PAGES:      1
AUTHOR(S):                                          ADDRESSEE(S):
      Riedel Environmental Services                      Unknown
DESCRIPTION:  Table 2 Total Chromium In Sol.*

 1. 5. .  .   Vol.1 -   1037060    DOC ID:   35210 WAGED
      DATE:  7/10/87            PAGES:     44
AUTHOR(S):                                          ADDRESSEE(S):
      Riedel Environmental Services                      Unknown
DESCRIPTION:  FJeM Investigation Report for Padflc Northwest Platfng.

              NOTE: Document is located in Boomsnub Removal Administrative Record, Section 12.

 1. 5. .  .   Vol.1 -   1037061    DOC ID:   35211  IMAGED
      DATE:  5/2/88            PAGES:      4
AUTHOR(S):                                          ADDRESSEE(S):
      Ecology & Environment. Inc.                         Unknown
DESCRIPTION:  Logbook of phone corrvereatJons regardrhg sRe.

 1. 5. .  .   Vol.1 -   1037063    DOC ID:   35213  WAGED
      DATE:  1/30/30            PAGES:     11
AUTHOR(S):                                          ADORESSEE(S):
      Dames & Moore                                 Unknown
DESCRIPTION:  Report InstanafionafidSampIng of Mentoring WeHMW-5.

 1. 5. .  .   Vol.1 -   1037064    DOC ID:   35214 WAGED
      DATE:  8/10/90            PAGES:     12
AUTHOR(S):                                          ADDRESSEE(S):
      Dames & Moore                                 Unknown
DESCRIPTION:  Report Installation and Sampling of Mentoring Well MW-5B.

 1. 5. .  .   Vol.1-   1037066    DOC ID:   35216 WAGED
      DATE:  5/31/91            PAGES:      2
ALTTHOR(S):                                          ADDRESSEE(S):
      PTI Environmental Services                         Unknown
DESCRIPTION:  Tabto 15 Sol Analysis Summary.

 1. 5. .  .   Vol. 1 -   1037065    DOC ID:   35215 IMAGED
      DATE:  7/11/91            PAGES:      1
AITTHOR(S):                                          ADDRESSEE(S):
      PTI Environmental Services                         Unknown
DESCRIPTION:  Figure 3: Total chromium.

 1. 5. .  .   Vol.1-   1037067    DOC ID:   35217 IMAGED
      DATE:  1/1/92            PAGES:      1
AUTHOR(S):                                          ADDRESSEE(S):
      Science Applications International Corporation           Unknown
9/23/97                       U.S. Environmental Protection Agency, Region 10     Page

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(BIAAR) BOOMSNUB/AJRCO - INTERIM ACTION AOMIN. RECORD INDEX

DESCRIPTION: Table 4-2 Summary of Soil Sampling Analytical Results.

 1. 5. . .   Vol.1  -    1037068    DOC ID:  35218  IMAGED
      DATE:   1/1/93            PAGES:      2
AUTHOR(S):        .   "~                               ADDRESSEE(S):
      Science Applications International Corporation           Unknown
DESCRIPTION: Table 3 Total Chromium Concentrations in Sofl Samples Collected During Drilling.

 1. 5. . .   Vol.1  -    1037069    DOC ID:  35219  IMAGED
      DATE:   1/20/95            PAGES:      4
AUTHOR(S):                                           ADDRESSEE(S):
      Mary Beth Hayes/State of Washington Dept of Ecology    Harold Anderson/Unknown
DESCRIPTION: Letter regarding results of testing of well water for Chromium and VOCs.

SUB-HEAD:   1. 6. . .  Vol.1  -    NPL Documentation

 1.6. . .   Vol.1  -    1037070    DOC ID:  35220  IMAGED
      DATE:   1/1/94            PAGES:      6
AUTHOR(S):                                           ADDRESSEE(S):
      EPA                                           Unknown
DESCRIPTION: National Priorities List letters requesting addition of Boomsnub to NPL, and Fact Sheet on
              Boomsnub.

 1. 6. . .   Vol. 1  -    1037071    DOC ID:  35222  IMAGED
      DATE:   1/18/94            PAGES:      7
AUTHOR(S):                                           ADDRESSEE(S):
      EPA                                           Unknown
DESCRIPTION:  Federal Register Vol. 59. No. 11: National Priorities List for Uncontrolled Hazardous Waste Sites,
              Proposed Rule No. 16.

 1. 6. . .   Vol.1-    1037072    DOC ID:  35223  MAGED
      DATE:   3/17/94            PAGES:     10
AUTHOR(S):                                           ADDRESSEE(S):
      James Merriam/Alrco Gases                         EPA
DESCRIPTION: Letter to EPA Docket Office requesting that Airco and Boomsnub be considered separately on the
              NPL listing.

 1. 6. . .   Vol. 1  -    1037073    DOC ID:  35224  MAGED
      DATE:   5/9/94            PAGES:      3
AUTHOR(S):                                           ADDRESSEE(S):
      David B. Jansen/State of Washington Dept of Ecology     EPA
DESCRIPTION: Letter to EPA Docket Office disagreeing with Airco's letter and stating why it should be included on
              the NPL listing.

 1. 6. . .   Vol.1  -    1037074    DOC ID:  35225  IMAGED
      DATE:   4/1/95            PAGES:      1
AUTHOR(S):                                           ADDRESSEE(S):
      EPA                                           Unknown
DESCRIPTION: NPL listing for Boomsnub/Airco.

 1.6. . .   Vol.1  -    1037075    DOC ID:  35227  IMAGED
      DATE:   4/1/95            PAGES:     17
AUTHOR(S):                                           ADDRESSEE(S):
      EPA         .                                  Unknown
DESCRIPTION: Support Document for the Revised Naoonal Priorities List Final Rule.
9/23/97                       U.S. Environmental Protection Aoencv. Reoton 10     Paoe

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(BIAAR) BOOMSNUB/AJRCO - (INTERIM ACTION ADMN. RECORD INDEX

 1. 6. . .   Vol.1 -    1037076    DOC ID:  35230  WAGED
      DATE:  4/17/95            PAGES:      1
AUTHOR(S):                                           ADDRESSEE(S):
      MBce Lowiy/State of Washington                      Carol Browner/EPA
DESCRIPTION:  Letter supporting NPL toting for Boomsnub/Arrco.

 1. 6. . .   Vol.1-    1037077    DOC ID:  35231  IMAGED
      DATE:  4/25/95            PAGES:     25
ALTTHOR(S):                                           ADDRESSEE(S):
      EPA                                           Unknown
DESCRIPTION:  Federal Register. National Priorities List for Uncontrolled Hazardous Waste Sites - Final Rule.

SUB-HEAD:  1.7.  . .  Vol. 1 -    Treatment Technology Alternatives Evaluation

 1. 7. . .   Vol.1 -    1037078    DOC ID:  35232  WAGED
      DATE:  5/1/94            PAGES:     22
AUTHOR(S):                                           ADDRESSEE(S):
      Ecology & Environment Inc.                         Chris D. Field/EPA
DESCRIPTION:  Report Evaluation of Treatment Technology Alternatives for the Removal/Remediation of
              Chromium Contaminated Sol.

 1. 7. . .   Vol.1-    1037097    DOC ID:  35251  WAGED
      DATE:  5/20/94            PAGES:      1
AUTHOR(S):                                           ADDRESSEE(S):
      WflRam L Carberry/Ecology & Environment, Inc.          Chris D. FteM/EPA
DESCRIPTION:  Letter regarding Treatment Technologies Evaluation Report for treatment of contaminated softs.

 1. 7. . .   Vol.1 -    1037099    DOC ID:  35253  WAGED
      DATE:  7/20/94            PAGES:      3
ALfTHOR(S):                                           ADDRESSEE(S):
      Sherwood T. Cutter/EPA                            Ann WUBamson/EPA
DESCRIPTION:  Pros and cons of water treatment options.

 1. 7. . .   Vol.1 -    1037100    DOCK):  35254  WAGED
      DATE:  7/21/94            PAGES:      3
AUTHOR(S):                                           ADDRESSEE(S):
      Sherwood T. Cutter/EPA                            Ann WBRamson^PA
DESCRIPTION:  Cost Estimates for water treatment options.

 1. 7. . .   Vol.1 -    1037101    DOC ID:  35255  IMAGED
      DATE:  7/25*4            PAGES:     21
AUTHOR(S):                                           ADDRESSEE(S):
      Rick Roehl/Ecology & Environment, Inc.                Chris D. Field/EPA
DESCRIPTION:  Report Evaluation of Treatment Alternatives for Removal of Hexvalent Chromium and Volatile
              Organic Compounds from Groundwater at the Boomsnub Site.

 1. 7.  . .   Vol. 1 -    1037102    DOC ID:  35256  WAGED
      DATE:  7/26/94            PAGES:     13
AUTHOR(S):                                           ADDRESSEE(S):
      GET Environmental Services                        Thor Cutler/EPA
DESCRIPTION:  Report Design Development, 100 GPM Ion Exchange System for Removal of Hexvalent Chrome
              from Groundwater at the Boomsnub Site.

 1.7.  . .   Vol.1 -    1030133    DOC ID:  42607  IMAGED
      DATE:   8/1/94            PAGES:     23
AUTHOR(S):                                           ADORESSEE(S):
      WHHam L. Carberry/Ecology & Environment, Inc.          Chris D. ReM/EPA
9/23/97                       U.S. Environmental Protection Agency, Region 10     Page       10

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(BIAAR) BOOMSNUB/AJRCO - INTERIM ACTION AOMIN. RECORD INDEX

DESCRIPTION: Cover letter and Engineering Evaluation and Cost Analysis of Boomsnub Groundwater Treatment
              System.

 1. 7. . .  Vol.1 -    1037103    DOC ID:   35257  IMAGED
      DATE:   8/31/34-          PAGES:      11
AUTHOR(S):                                          ADDRESSEE(S):
      Rick Roehl/Ecology & Environment, Inc.                Unknown
DESCRIPTION: Memorandum regarding Boomsnub treatabilrty studies and attached sampling results from Andco
              Environmental Processes, Inc.

 1. 7. . .  Vol.1-    1037098    DOC ID:   35252  IMAGED
      DATE:   10/14/94           PAGES:       7
ALTTHOR(S):                                          ADDRESSEE(S):
      Ecology & Environment. Inc.                         Unknown
DESCRIPTION: Proposed plans and Cost Analysis, Groundwater Extraction Network Expansion.

SUB-HEAD:   1. 8. . .  Vol.1 •    Groundwater Monitoring Reports

 1. 8. . .  Vol.1-    1037597    DOC ID:   40507  IMAGED
      DATE:   4/1/92             PAGES:      19
AUTHOR(S):                                          ADDRESSEE(S):
      Science Applications International Corporation           State of Washington Dept of Ecology
DESCRIPTION: 4/92 Groundwater Monitoring Report.

              NOTE: Document is located In Boomsnub Removal Administrative Record. Section 1.3

 1.8. . .  Vol.1-    1037598    DOC ID:   40508  IMAGED
      DATE:   3/16/94            PAGES:      53
AUTHOR(S):                                          ADDRESSEE(S):
      SderK» App«catk>n« Wemattonal CorpofatJon           State of Washington Dept of Ecology
DESCRIPTION: 1/B4 Groundwater Mentoring Report

 1. 8. . .  Vol.1-    1037599    DOC ID:   40509  WAGED
      DATE:   4/7/94             PAGES:      51
AUTHOR(S):                                          ADDRESSEE(S):
      Science AppBcations International Corporation           State of Washington Dept of Ecology
DESCRIPTION: 2/94 Groundwater Monitoring Report

              NOTE: Document is located In Boomsnub Removal Administrative Record, Section 1.3.

 1. 8. . .  Vol.1-    1037600    DOC ID:   40510  MAGED
      DATE:   4/26/94            PAGES:      59
AUTHOR(S):                                          ADDRESSEE(S):
      Science AppBcations International Corporation           State of Washington Dept of Ecology
DESCRIPTION: 3/94 Groundwater Monitoring Report.

 1. 8. . .  Vol.1-    1037601    DOC ID:   40511  MAGED
      DATE:   6/22/94            PAGES:      47
AUTHOR(S):                                          ADDRESSEE(S):
      Science Applications International Corporation           Slate of Washington Dept of Ecology
DESCRIPTION: 4/94 Groundwater Monitoring Report

 1. 8. . .  Vol.1 -    1037602    DOC ID:   40512  MAGED
      DATE:   8/5/94             PAGES:      38
AUTHOR(S):                                          ADDRESSEE(S):
      Science Applications International Corporation           State of Washington Dept of Ecology
9/23/97                       US FmdrnnnrwMital Pr«tAc««n

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(B1AAR) BOOMSNUB/A1RCO - INTERIM ACTION ADMN. RECORD INDEX

DESCRIPTION:  8/94 Groundwater Monttoiing Report.

 1. 8. . .   Vot.1 -    1037603    DOC ID:  40513 WAGED
      DATE:   9/12/94            PAGES:     27
AUTHOR(S):             -                            ADDRESSEE(S):
      Science Applications International Corporation          State of Washington Dept of Ecology
DESCRIPTION:  7/94 Groundwater Monitoring Report.

 1. 8. . .   Vol.1-    1037604    DOC ID:  40514 WAGED
      DATE:   10/10/94           PAGES:     49
AUTHOR(S):                                          ADDRESSEE(S):
      Science Applications International Corporation          State of Washington Dept of Ecology
DESCRIPTION:  8/94 Groundwater Monitoring Report.

 1. 8. . .   Vol.1-    1037605    DOC ID:  41051 IMAGED
      DATE:   11/1/94           PAGES:     27
AUTHOR(S):                                          ADDRESSEE(S):
      SAIC, Inc.                                      EPA
DESCRIPTION:  9/10 Groundwater Monitoring Report

 1. 8. . .   Vol.1-    1037608    DOC ID:  40516 IMAGED
      DATE:   12/5/94           PAGES:     51
AUTHOR(S):                                          ADDRESSEE(S):
      Science Applications International Corporation          State of Washington Dept of Ecology
DESCRIPTION:  10/94 Groundwator Monitoring Report

 1. 8. . .   Vol.1 -    1037607    DOC ID:  40517 WAGED
      DATE:   1/1/95            PAGES:      26
AUTHOR(S):                                          ADORESSEE(S):
      Science Appfications International Corporation          Slate of Washington Dept of Ecology
DESCRIPTION:  11/94 Groundwater Monitoring Report

 1. 8. . .   Vol. 1 -    1037608    DOC ID:  40518 WAGED
      DATE:   2/21/9S            PAGES:     27
ALTTHOR(S):                                          ADDRESSEE(S):
      Science Applications International Corporation          Slate of Washington Dept of Ecology
DESCRIPTION:  12/94 Groundwater Monitoring Report

SUB-HEAD:  1. «...  Vol.1  -     State of Washington Reports

SUB-HEAD:  1. t. 1.  .   Vol.1 -    Hydrogeologte Investigations

 1. 9. 1.  .  Vol.1 -    1037610    DOC ID:  40519 IMAGED
      DATE:   4/1/91            PAGES:     71
AUTHOR(S):                                          ADDRESSEE(S):
      ICF Technology, Inc.                              State of Washington Dept of Ecology
DESCRIPTION:  Recommended Expedited Interim Actions.

              NOTE: Document is located In Boomsnub Removal Administrative Record. Section 12.

SUB-HEAD:  1. t. 2.  .   Vol.1 -    Interim Actions & Work Plans

 1.9.2.  .  Vol.1-   1037612    DOC ID:  40520 IMAGED
      DATE:   4/1/91            PAGES:     88
AUTHOR(S):                                          ADORESSEE(S):
      ICF Technology, Inc.                              State of Washington Dept of Ecology
9/23/97                       U.S. Environmental Protection Agency, Region 10     Page      12

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(BIAAR) BOOMSNUB/A1RCO - INTERIM ACTION ADMIN. RECORD INDEX

DESCRIPTION- Results of Hydrogeologic Investigations, Vol. 1 of 2.

              NOTE: Document is located in Boomsnub Removal Administrative Record, Section 12.

 1.  9. 2.  .   Vol.1-  -1037613    DOC ID:  40521  IMAGED
      DATE:   5/1/91             PAGES:     30
AUTHOR(S):                                           ADDRESSEE(S):
      ICF Technology. Inc.                               State of Washington Dept of Ecology.
DESCRIPTION: Performance Specifications and Statement of Work for Packed Tower Air Stripper with
              Vapor-phase Carbon Unit and Air Delivery System.

              NOTE: Document is located in Boomsnub Removal Administrative Record, Section 12.

 1.9.2.  .   Vol.1-   1037611    DOC ID:  40522  IMAGED
      DATE:   7/14/92            PAGES:    153
AinHOR(S):                                           ADDRESSEE(S):
      Science Applications International Corporation           State of Washington Dept of Ecology
DESCRIPTION: Final Project Report on Interim Action on Monitoring Well Installation.

              NOTE: Document is located in Boomsnub Removal Administrative Record. Section 1.3.

 1.9.2.  .   Vol.1-   1037614    DOC ID:  40523  WAGED
      DATE:   1/18/94            PAGES:      4
AUTHOR(S):                                           ADDRESSEE(S):
      Unknown                                        Unknown
DESCRIPTION: Scope of Work for Continuation of Groundwater Monitoring.


 1.9.2.  .   Vol.1-   1037615    DOCK):  40524  IMAGED
      DATE:   2/22/94            PAGES:     24
AUTHOR(S):                                           ADDRESSEE(S):
      Science Applications International Corporation           State of Washington Dept of Ecology
DESCRIPTION: Fkwl Work Plan for Soil Boring Installations.

 1.9.2.  .   Vol.1-   1037503    DOC ID:  40227  WAGED
      DATE:   6/27/94            PAGES:     10
AUTHOR(S):                                           ADDRESSEE(S):
      State of Washington Dept of Ecology                  City of Vancouver
DESCRIPTION: Boomsnub Ground Water Treatment System Engineering Report

SUB-HEAD:   1.9.3.  .  Vol.1*    Groundwater Well Installation

 1.  9. 3.  .   Vol.1-   1037616    DOC ID:  40525  IMAGED
      DATE:   3/1/93             PAGES:    107
AUTHOR(S):                                           ADDRESSEE(S):
      Science Applications International Corporation           State of Washington Dept of Ecology
DESCRIPTION: Draft Three-Dimensional Groundwater Flow Modeling to Optimize Extraction System Efficiency
              Report.

 1.9.3.  .   Vol.1-   1037617    DOC ID:  40526  IMAGED
      DATE:   5/14/93            PAGES:    619
AUTHOR(S):                                           ADDRESSEE(S):
      Science Applications International Corporation           State of Washington Dept of Ecology
DESCRIPTION: Summary Report on Groundwater Monitoring Well Installations.

              NOTE: Document is located in Boomsnub Removal Administrative Record, Section 1.3.
9/23/87                        U.S Environmental Protection Aaancv. Realon 10     Pana       n

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(BIAAR) BOOMSNUB/AJRCO - INTERIM ACTION ADMIN. RECORD INDEX

 1.9.3.  .   Vol.1-   1037618   DOC ID:  40527  WAGED
      DATE:   11/5/93           PAGES:    227
AUTHOR(S):                                           ADDRESSEE(S):
      Sdenc« Appficatfonsjiitematfonal Corporation           State of Washington Dept of Ecology
DESCRIPTION: Summary Report on Groundwater Monitoring Well Installations.

              NOTE: Document to located in Boomsnub Removal Administrative Record, Section 1.3.

 1.9.3.  .   Vol.1-   1037619   DOC ID:  40528  WAGED
      DATE:   2/11/94           PAGES:    205
AlfTHOR(S):                                           ADDRESSEE(S):
      Science Applications International Corporation           State of Washington Dept of Ecology
DESCRIPTION: Groundwater Treatment System Engineering Report and Operation Manual.

 1.9.3.  .   Vol.1-   1037620   DOC ID:  40529  IMAGED
      DATE:   9/28/94           PAGES:      9
Al/THOR(S):                                           ADDRESSEE(S):
      Dan Alexanian/WDOE                              Thor Cutter/EPA
DESCRIPTION: Draft proposal for suggested pump rates for network wells.*

 1. 9. 3.  .   Vol.1-   1037621   DOC ID:  40530  IMAGED
      DATE:   9/30/94           PAGES:      7
AUTHOR(S):                                           ADDRESSEE(S):
      Bruce Wilson/Ecology & Environment                  John Roland/Ecology & Environment, Inc.
DESCRIPTION: Analytical flow models.

 1. 9. 3.  .   Vol.1-   1037622   DOC ID:  40531  IMAGED
      DATE:   9/30/94           PAGES:     10
AUTHOR(S):                                           ADORESSEE(S):
      Mary Beth Hayes/State of Washington Dept of Ecology    Thor Cutter/EPA
DESCRIPTION: Letter and three pumping scenarios and associated capture plots.

 1. 9. 3.  .   Vol.1 -   1037623   DOCK):  40532  WAGED
      DATE:   9/30/94           PAGES:      6
AUTHOR(S):                                           ADDRESSEE(S):
      Bruce Wflson/Ecology & Environment                  Jeff Fowlow/Ecology & Environment, Inc.
DESCRIPTION: Revised well models.

SUB-HEAD:   1.11.  .  .   Vd.1  -   Removal Activities

SUB-HEAD:   1.11.2..  Vol. 1  -   Action Memoranda

 1.11. 2.  .  Vol.1-  1037156   DOC ID:  35313  IMAGED
      DATE:   5/13*4           PAGES:     51
AUTHOR(S):                                           ADDRESSEE(S):
      Sherwood T. Cutter/EPA                            Chuck Clarke/EPA
DESCRIPTION: Action Memorandum requesting approval for a proposed removal action and exemption from the 2
              million dollar statutory HmH


 1.11.2.  .  Vol. 1 -  1037157   DOC ID:  35314  WAGED
       DATE:  9/9/94            PAGES:      17
AUTHOR(S):                                           ADDRESSEE(S):
       Sherwood T. Cutler/EPA                            Randall F. Smith/EPA
DESCRIPTION: Action memorandum requesting a ceiling increase and exemption to the 2 mfllter, dollar KmK.
9/23/97                        U.S. Environmental Protection Agency, Region 10     Page      14

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(BIAAR) BOOMSNUB/A1RCO - INTERIM ACTION AOMIN. RECORD INDEX

 1.11.2.  .  Vol.1-   1030631    DOC ID:  70601  IMAGED
      DATE:   9/14/94           PAGES:      2
AUTHOR(S):                                         ADDRESSEE(S):
      Mary B. Hayes/Washington Dept of Ecology            Thor Cutler/EPA
DESCRIPTION: Comments regarding Draft GET Report • Boomsnub Treatment System Evaluation.

 1.11.2.  .  Vol 1  -   1037158    DOC ID:  35315  IMAGED
      DATE:   9/22/94           PAGES:     16
AUTHOR(S):                                         ADDRESSEE(S):
      Sherwood T. Cutler/EPA                           Chuck Clarke/EPA
DESCRIPTION: Action memorandum requesting a ceding increase and exemption to the 2 million dollar limit

 1.11. 2.  .  Vol.1-   1037159    DOC ID:  35316  IMAGED
      DATE:   8/7/95            PAGES:     17
AUTHOR(S):                                         ADDRESSEE(S):
      Ann WUIiamson/EPA                              Chuck Clarke/EPA
DESCRIPTION: Action memorandum requesting a combined ceiling increase and 12-month limit extension.

SUB-HEAD:   1.11.3. .   Vol. 1 •   Operation Observations/Sump Uning Reports

 1.11.3.  .  Vol.1-   1037160    DOC ID:  35317 IMAGED
      DATE:   6/5/94            PAGES:      1
AUTHOR(S):                                         ADDRESSEE(S):
      Mtehael A. Stanaszek/Landau Associates, Inc.           Unknown
DESCRIPTION: Sump fining hydrotest report


 1.11.3. .  Vol.1-   1037161    DOC ID:  35318 IMAGED
      DATE:   6/7/94            PAGES:      2
AUTHOR(S):                                         ADDRESSEE(S):
      Mtehael A. Stanaszek/Landau Associates, Inc.           Unknown
DESCRIPTION: Sump Ining hydrotest report.


 1.11.3. .  Vol.1-   1037162    DOC ID:  35319 WAGED
      DATE:   6/13/94            PAGES:      4
AUTHOR(S):                                         ADDRESSEE(S):
      Kris Hendrickson/Landau Associates. Inc.              Thor Cutter/EPA
DESCRIPTION: Operations Observation Reports for sump lining project

 1.11. 3. .  Vol.1  -   1037163    DOC ID:  35320 IMAGED
      DATE:   6/17/94            PAGES:      2
AUTHOR(S):                                         ADDRESSEE(S):
      Todd J. Ketthahn/Landau Associates, Inc.              Thor Cutler/EPA
DESCRIPTION: Operations Observation Reports for sump fining project

 1.11. 3.  .  Vol.1-   1037164    DOC ID:  35321  IMAGED
      DATE:   6/21/94            PAGES:      2
AUTHOR(S):                                         ADDRESSEE(S):
      Kris Hendrickson/Landau Associates. Inc.              Thor Cutier/EPA
DESCRIPTION: Operations Observation Reports for sump lining project

 1.11.3. .  Vol.1-   1037165    DOC ID:  35322  IMAGED
      DATE:   6/22/94            PAGES:      2
AUTHOR(S):                                         ADDRESSEE(S):
      Kris Hendrickson/Landau Associates, Inc.              Thor Cutler/EPA
9/23/97                       U.S. Environmental Protection Aoencv Reoion 10     Pun

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(BIAAR) BOOMSNUB/AIRCO - INTERIM ACTION AOMIN. RECORD INDEX

DESCRIPTION: PVC Pipeline and Fitting Observation Report.

 1.11.  3. .  Vol.1-  1037166    DOCK):   35323 WAGED
      DATE:   6/22/94            PAGES:       2
ALTTHOR(S):           -                              ADDRESSEE(S):
      Kris Hendrickson/Landau Associates, Inc.               Thor Cutler/EPA
DESCRIPTION: Operations Observation Reports for sump lining project

 1.11.3. .  Vol.1-  1037167    DOC ID:   35325 IMAGED
      DATE:   6/23/94            PAGES:       2
ALTTHOR(S):                                          ADDRESSEE(S):
      Kris Hendrickson/Landau Associates, Inc.               Thor Cutler/EPA
DESCRIPTION: Operations Observation Report for sump lining project

 1.11.3. .  Vol.1-  1037168    DOC ID:   35326 IMAGED
      DATE:   6/24/94            PAGES:       2
AUTHOR(S):                                          ADDRESSEE(S):
      Kris Hendrickson/Landau Associates, Inc.               Thor Cutler/EPA
DESCRIPTION: Operations Observation Report for sump fining project
                                                 f
 1.11.3. .  Vol.1-  1037169    DOC ID:   35327 WAGED
      DATE:   6/27/94            PAGES:       3
AUTHOR(S):                                          ADDRESSEE(S):
      MBce Stanaszek/Landau Associates, Inc.               Thor Cutler/EPA
DESCRIPTION: Operations Observation Report for sump Rntng project

 1.11.3. .   Vol.1-  1037170    DOC ID:   35328 IMAGED
      DATE:   6/28/94            PAGES:       2
AUTHOR(S):                                          ADDRESSEE(S):
      Kris Hendrickson/Landau Associates, Inc.               Thor Cutter/EPA
DESCRIPTION: Operations Observation Report for sump fining project

 1.11.3. .  Vol.1-  1037171    DOCK):   35329 IMAGED
      DATE:   6/29/94            PAGES:       2
AITTHOR(S):                                          ADDRESSEE(S):
      Kris Hendrickson/Landau Associates, Inc.               Thor Cuter/EPA
DESCRIPTION: Operations Observation Report for sump Rning project

 1.11.3. .  Vol.1-  1037172    DOC ID:   35330 WAGED
      DATE:   6/30/94            PAGES:       2
AUTHOR(S):                                          ADDRESSEE(S):
      Kris Hendrickson/Landau Associates, Inc.               Thor Cutler/EPA
DESCRIPTION: Operations Observation Report for sump fining project

 1.11.3. .  Vol.1-  1037173    DOC ID:   35331 WAGED
      DATE:   7/1/94             PAGES:       2
AirmOR(S):                                          ADDRESSEE(S):
      Kris Hendrickson/Landau Associates, Inc.               Thor Cutler/EPA
DESCRIPTION: Operations Observation Report for sump Rnrng project

 1.11.  3. .  Vol.1-  1037174    DOC ID:   35332 WAGED
      DATE:   7/6/94             PAGES:       2
AUTHOR(S):                                          ADDRESSEE(S):
      Kris Hendrickson/Landau Associates, Inc.               Thor Cutler/EPA
DESCRIPTION: Operations Observation Report for sump Bning project
9/23/97                        U.S. Environmental Protection Agency, Region 10      Page      16

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(BIAAR) BOOMSNUB/AIRCO - INTERIM ACTION AOMN. RECORD INDEX

 1.11. 3. .   Vol.1-   1037175    DOC ID:  35333  WAGED
      DATE:  7/7/94            PAGES:      2
AUTHOR(S):                                          ADDRESSEE(S):
      Kris Hendrickson/Landau Associates, Inc.              Thor Cutler/EPA
DESCRIPTION:  Operations Observation Report for sump lining project

 1.11. 3. .   Vol. 1  -   1037176    DOC ID:  35334  WAGED
      DATE:  7/8/94            PAGES:      3
AUTHOR(S):                                          ADDRESSEE(S):
      Kris Hendrickson/Landau Associates, Inc.              Thor CutJer/EPA
DESCRIPTION:  Operations Observation Report for sump fining project

 1.11.3. .   Vol.1-   1037177    DOC ID:  35335  IMAGED
      DATE:  7/11/94            PAGES:      3
AUTHOR(S):                                          ADDRESSEE(S):
      Kris Hendrickson/Landau Associates, Inc.              Thor Cutler/EPA
DESCRIPTION:  Operations Observation Report for sump lining project

 1.11.3. .   Vol.1-   1037178    DOC ID:  35336  IMAGED
      DATE:  7/12/94            PAGES:      2
AUTHOR(S):                                          ADDRESSEE(S):
      Kris Hendrickson/Landau Associates, Inc.              Thor CutJer/EPA
DESCRIPTION:  Operations Observation Report for sump lining project

 1.11. 3. .   Vol.1-   1037179    DOC ID:  35337  WAGED
      DATE:  7/13/94            PAGES:      2
AUTHOR(S):                                          ADDRESSEE(S):
      Mke Stanaszek/Landau Associates, Inc.              Thor Cutler/EPA
DESCRIPTION:  Operations Observation Report for sump Ining project

 1.11. 3. .   Vol.1  -   1037180    DOC ID:  35338  WAGED
      DATE:  7/14794            PAGES:      2
Al/THOR(S):                                          ADDRESSEE(S):
      Mke Stanaszek/Landau Associates, Inc.              Thor Cutler/EPA
DESCRIPTION:  Operations Observation Report for sump Ining project

 1.11.3. .   Vol.1-   1037181    DOC ID:  35339  WAGED
      DATE:  7/14/94            PAGES:      2
AUTHOR(S):                                          ADDRESSEE(S):
      Mke Stanaszek/Landau Associates. Inc.              Thor Cutter/EPA
DESCRIPTION:  Operations Observation Report for sump Ining project

 1.11.3. .   Vol.1-   1037182    DOC ID:  35340  IMAGED
      DATE:  7/15/94            PAGES:      2
AUTHOR(S):                                          ADDRESSEE(S):
      Mke Stanaszek/Landau Associates. Inc.              Thor Cutler/EPA
DESCRIPTION:  Operations Observation Report for sump lining project

 1.11.3. .   Vol.1-   1037183    DOC ID:  35341  WAGED
      DATE:  7/18/94            PAGES:      3
ALTTHOR(S):                                          ADDRESSEE(S):
      Mike Stanaszek/Landau Associates, Inc.              Thor Cutler/EPA
DESCRIPTION:  Operations Observation Report for sump lining project

 1.11.3. .  Vol.1-   1037184    DOC ID:  35342  IMAGED
      DATE:  7/19/94            PAGES:      2
AUTHOR(S):                                          ADDRESSEE(S):
9/23/97                        U.S. Environmental Protection Anancv RAnkwt 1O     P«n»       17

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(BIAAR) BOOMSNUB/AIRCO • INTERIM ACTION ADMIN. RECORD INDEX

     . Mike Stanaszek/Landau Associates, Inc.                Thor Cutler/EPA
DESCRIPTION: Operations Observation Report for sump Mng project

 1.11.3.  .  Vol. 1  -   1037185   DOC ID:  35343  WAGED
      DATE:   7/20/94  -        PAGES:      2
AITTHOR(S):                                           ADDRESSEE(S):
      Mflce Stanaszek/Landau Associates, Inc.                Thor Cutler/EPA
DESCRIPTION: Operations Observation Report for sump Mng project

 1.11.3.  .  Vol.1-   1037186   DOC ID:  35344  IMAGED
      DATE:   7/21/94           PAGES:      2
AUTHOR(S):                                           ADDRESSEE(S):
      MHce Stanaszek/Landau Associates, Inc.                Thor Cutler/EPA
DESCRIPTION: Operations Observation Report for sump Mng project

 1.11.3.  .  Vol.1-   1037187   DOC ID:  35345  IMAGED
      DATE:   7/22/94           PAGES:      2
AUTHOR(S):                                           ADDRESSEE(S):
      MBce Stanaszek/Landau Associates, Inc.                Thor Cutler/EPA
DESCRIPTION: Operations Observation Report for sump lining project

 1.11. 3.  .  Vol.1  -   1037188   DOC ID:  35346  IMAGED
      DATE:   7/25/94           PAGES:      2
AUTHOR(S):                                           ADORESSEE(S):
      MHce Stanaszek/Landau Associates, Inc.                Thor Cutler/EPA
DESCRIPTION: Operations Observation Report for sump Mng project

 1.11.3.  .  Vol.1-   1037189   DOC ID:  35347  WAGED
      DATE:   7/25/94           PAGES:      2
AUTHOR(S):                                           ADORESSEE(S):
      MBce Stanaszek/Landau Associates, Inc.                Thor Cutler/EPA
DESCRIPTION: Operations Observation Report for sump Mng project

 1.11.3.  .  Vol.1-   1037190   DOC ID:  35348  WAGED
      DATE:   7/27/94           PAGES:      2
AUTHOR(S):                                           ADDRESSEE(S):
      MBce Stanaszek/Landau Associates, Inc.               Thor Cutler/EPA
DESCRIPTION: Operations Observation Report for sump Mng project

 1.11. 3.  .  Vol.1-   1037191   DOC ID:  35349 IMAGED
      DATE:   7/28/94           PAGES:      2
AUTHOR(S):                                           ADDRESSEE(S):
      MBce Stanaszek/Landau Associates, Inc.               Thor Cutler/EPA
DESCRIPTION: Operations Observation Report for sump Hning project

 1.11.  3.  .   Vol.1-   1037192    DOC ID:  35350 IMAGED
      DATE:   7/29/94            PAGES:      2
AUTHOR(S):                                          AODRESSEE(S):
      MHce Stanaszek/Lendau Associates, Inc.               Thor Cutler/EPA
DESCRIPTION: Operations Observation Report for sump Mng project

 1.11.  3.  .   Vol.1-   1030297    DOC ID:  41039 WAGED
      DATE:   4/24/95            PAGES:       3
AUTHOR(S):                                     .     ADDRESSEE(S):
      M. T. DeBettencourt/U. S. Coast Guard                Thor Cutler/EPA
 9/23/97                       U.S. Environmental Protection Agency. Region 10     Page       18

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(BIAAR) BOOMSNUB/AJRCO - INTERIM ACTION ADMIN. RECORD INDEX

DESCRIPTION: Incident Summary Report Caw # 02444 carried out by Pacific Strike Team.

SUB-HEAD:   1.11.6. .   Vol. 1 -    Sampling Activities

 1.11. 6. .  Vol.1-  4030194    DOC ID:   42790 IMAGED
      DATE:   3/31/94            PAGES:      16
ALTTHOR(S):                                          ADDRESSEE(S):
      Marie Woodke/Ecology & Environment. Inc.             Ula A. Transue/Sound Analytical Services
DESCRIPTION: Transmittal forms for information regarding TAT sampling and costs.

 1.11. 6. .  Vol.1-  1037320    DOC ID:   35551 IMAGED
      DATE:   4/28/94            PAGES:      17
AUTHOR(S):                                          ADDRESSEE(S):
      William L. Carberry/Ecology & Environment             Chris Reid/EPA
DESCRIPTION: Draft maps and preliminary data tables to assist in preparing removal action memorandum.
              NOTE: A/R includes first two pages only (cover letter and document list).  Maps and tables are with
              document #35313, Section 1.11.2.

 1.11. 6. .  Vol.1-  1030594    DOC ID:   70352 IMAGED
      DATE:   5/17/94            PAGES:       8
AUTHOR(S):                                          ADDRESSEE(S):
      Marie Woodke/Ecology & Environment, Inc.             Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION: Memorandum regarding TDD #10-9403-009. Inorganic Data Quality Assurance Review of 1 water
              and 5 soil samples.

 1.11. 6. .  Vol.1-  1030595    DOC ID:   70353 IMAGED
      DATE:   5/17/94            PAGES:      18
AUTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment. Inc.             Jeff Fowlow/Ecology & Environment. Inc.
DESCRIPTION: Memorandum regarding TDD #10-9403-009, Organic Data Quality Assurance Review of 1 water
              and 6 soil samples.

 1.11.6. .  Vol.1-  1030596    DOCK):   70354 IMAGED
      DATE:   5/27/94            PAGES:      53
AUTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment. Inc.             Jeff Fowlow/Ecology & Environment, Inc.
DESCRIPTION: Memorandum regarding TDD #10-9403-009, Organic Data Quality Assurance Review of 1 water
              and 24 soil samples.

 1.11. 6. .  Vol.1-  1030597    DOC ID:   70355 WAGED
      DATE:   5/31/94            PAGES:      17
AUTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment, Inc.             Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION: Memorandum regarding TDD #10-9403-009, Inorganic Data Quality Assurance Review of 1 sludge
              and 6 product samples.

 1.11.6. .  Vol.1-  1030598    DOC ID:   70356 IMAGED
      DATE:   6/2/94             PAGES:      16
AITTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.             Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION: Memorandum regarding TDD #10-9403-009, Inorganic Data Quality Assurance Review of 7 acid
              and 12 soil samples.

 1.11.6. .  Vol.1-   1030599    DOC ID:   70357 IMAGED
      DATE:   6/8/94             PAGES:     163
AUTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment, Inc.             Jeff Fowlow/Ecology & Environment Inc
9/23/97                        U.S. Environmental Protection Aoencv Ranlnn 10     PIMM       10

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(BIAAR)BOOMSNUB/AJRCO-INTERIM ACTION ADMIN. RECORD INDEX

DESCRIPTION: Memorandum regarding TDD fl 04403-009. Inorganic Data Quality Assurance Review of 3 water
              and 77 soft samples.

 1.11.6. .   Vol.1-   1030600   DOC ID:  70358  IMAGED
      DATE:   6/8/94            PAGES:     21
AUTHOR(S):                                         ADORESSEE(S):
      Mark Woodke/Ecology & Environment, Inc.             Jeff Fowtow/Ecology & Environment. Inc.
DESCRIPTION: Memorandum regarding TDD fl 0-9403-009. Inorganic Data Quality Assurance Review of 1 water
              and 18 soil samples.

 1.11.6. .   Vol.1-   1030601    DOC ID:  70359  WAGED
      DATE:   6/8/94            PAGES:     42
AUTHOR(S):                                         ADDRESSEE(S):
      Mark Woodke/Ecology & Environment, Inc.             Jeff Fowlow/Ecology & Environment, Inc.
DESCRIPTION: Memorandum regarding TDD fl 0-9403-009, Organic Data Quality Assurance Review of 1 water
              and 18 soil samples.

 1.11. 6. .   Vol. 1-   1037349    DOC ID:  35722  WAGED
      DATE:   6/16/94           PAGES:     40
AUTHOR(S):                                         ADDRESSEE(S):
      WRHam Carberry/Ecology & Environment              Chris Field/EPA
DESCRIPTION: Quality Assurance Sampling Plan.

 1.11.6. .   Vol.1-   1030527    DOC ID:  70277  IMAGED
      DATE:   7/29/94           PAGES:      9
AUTHOR(S):                                         ADDRESSEE(S):
      Mark Woodke/Ecology & Environment, Inc.             Jeff Fowlow/Ecology & Environment, Inc.
DESCRIPTION: Memorandum regarding TDD 10-9406-008 Organic Data Quality Assurance Review of 3 water
              samples.

 1.11.6. .   Vol.1-   1030528    DOC ID:  70278  WAGED
      DATE:   8/1/94            PAGES:      3
AUTHOR(S):                                         ADORESSEE(S):
      Mark Woodke/Ecology & Environment, Inc.             Jeff Fowtow/Ecology & Environment, Inc.
DESCRIPTION: Memorandum regarding TDD 10-9406-008 Organic Data Quality Assurance Review of 1 water
              sample.

 1.11.6. .   Vol.1-   1030529    DOC ID:  70279  WAGED
      DATE:   8/1/94            PAGES:     15
AUTHOR(S):                                         ADDRESSEE(S):
      Mark Woodke/Ecology & Environment, Inc.             Jeff Fowlow/Ecology & Environment, Inc.
DESCRIPTION: Memorandum regarding TDD 10-9406-008, Organic Data Quality Assurance Review of 6 sol
              samples.

 1.11.6. .   Vol.1  -   1030530    DOC ID:  70280  WAGED
      DATE:   8/1/94            PAGES:      4
AUTHOR(S):                                         ADDRESSEE(S):
      Mark Woodke/Ecology & Environment, Inc.             Jeff Fowlow/Ecology. & Environment, Inc.
DESCRIPTION: Memorandum regarding TDD 10-9406-008, Organic Data Quality Assurance Review of 2 water
              samples.

 1.11. 6. .   Vol.1-   1030531    DOC ID:  70281  IMAGED
      DATE:   8/1/94            PAGES:      4
AUTHOR(S):                                         ADDRESSEE(S):
      Mark Woodke/Ecology & Environment, Inc.             Jeff Fowlow/Ecology & Environment, Inc.
9/23/97                       U.S. Environmental Protection Agency, Region 10     Page      20

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(BIAAR) BOOMSNUB/AJRCO - INTERIM ACTION AOMIN. RECORD INDEX

DESCRIPTION: Memorandum regarding TDD 10-9406-008, Inorganic Data Quality Assurance Review of 2 water
              samples.

 1.11.6.  .  Vol.1 -   1030532    DOC ID:   70282 WAGED
      DATE:   8/11/94-           PAGES:       7
ALTTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.             Jeff Fowtow/Ecology & Environment Inc.
DESCRIPTION: Memorandum regarding TDD 10-9406-008. Organic Data Quality Assurance Review of 2 water
              samples.

 1.11. 6.  .  Vol.1 •   1030533    DOC ID:   70283 IMAGED
      DATE:   8/11/94            PAGES:       5
AUTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.             Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION: Memorandum regarding TDD 10-9406-008, Inorganic Data Quality Assurance Review of 3 water
              samples.

 1.11.6.  .  Vol.1-   1030534    DOC ID:   70284 WAGED
      DATE:   8/11/94            PAGES:       9
AUTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.             Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION: Memorandum regarding TDD 10-9406-008, Inorganic Data Quality Assurance Review of 3 water
              samples.

 1.11. 8.  .  Vol.1-   1030535    DOC ID:   70285 IMAGED
      DATE:   9/2/94             PAGES:       4
AUTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.             Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION: Memorandum regarding TDD 10-9406-001, Inorganic Data Quality Assurance Review of 2 water
              samples.

 1.11.6.  .  Vol.1-   1030536    DOC ID:   70286 MAGED
      DATE:   9/6/94             PAGES:       3
AUTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.             Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION: Memorandum regarding TDD 10-94064)01, Inorganic Data Quality Assurance Review of 1 water
              sample.

 1.11. 6.  .  Vol.1-   1030537    DOC ID:   70287 MAGED
      DATE:   9/12/94            PAGES:       4
AUTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.             Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION: Memorandum regarding TDD 10-9406-008, Inorganic Data Quality Assurance Review of 1 water
              sample.

 1.11. 6.  .  Vol.1-   1030538    DOC ID:   70288 IMAGED
      DATE:   9/22/94            PAGES:      11
AUTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.             Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION: Memorandum regarding TDD 10-9406-008, Inorganic Data Quality Assurance Review of 9 filter
              samples.

 1.11.6.  .  Vol.1-   1030539    DOC ID:   70289 IMAGED
      DATE:   9/22/94            PAGES:      10
AUTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.             Jeff Fowlow/Ecology & Environment Inc.
8/23/97                       U.8, Environmental ProtacttonAaancvRwIon 10     Pan*       91

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(BIAAR) BOOMSNUB/AIRCO - INTERIM ACTION ADMN. RECORD INDEX

DESCRIPTION:  Memorandum regarding TDD 10-9406408, Inorganic Data Quality Assurance Review of 6 filter
              samples.

 1.11.6. .   Vol.1-   1030540    DOC ID:  70280  IMAGED
      DATE:   9/22/94    _       PAGES:     11
AUTHOR(S)                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment. Inc.             Jeff Fowlow/Ecology & Environment, Inc.
DESCRIPTION:  Memorandum regarding TDD 10-9406-008. Inorganic Data Quality Assurance Review of 9 (Rter
              samples.

 1.11.6. .   Vol.1-   1030541    DOC ID:  70291  IMAGED
      DATE:   9/22/94            PAGES:     11
AUTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment. Inc.             Jeff Fowlow/Ecology & Environment, Inc.
DESCRIPTION:  Memorandum regarding TDD 10-9406408. Inorganic Data Quality Assurance Review of 9 filter
              samples.

 1.11.6. .   Vol.1-   1030542    DOC ID:  70292  WAGED
      DATE:   9/22/94            PAGES:     11
AUTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment, Inc.             Jeff Fowlow/Ecology & Environment, Inc.
DESCRIPTION:  Memorandum regarding TDD 10-9406-008, Inorganic Data Quality Assurance Review of 9 fitter
              samples.

 1.11.6. .   Vol.1-   1030543    DOC ID:  70294  WAGED
      DATE:   9/22/94            PAGES:     11
AUTHOR(S):                    .                     ADDRESSEE(S):
      Mark Woodke/Ecology & Environment. Inc.             Jeff Fowlow/Ecology & Environment, Inc.
DESCRIPTION:  Memorandum regarding TDD 10-9406-008, Inorganic Data Quality Assurance Review of 9 fitter
              samples.

 1.11.6. .   Vol.1-   1030544    DOCID:  70295  WAGED
      DATE:   9/23/94            PAGES:      3
AUTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment. Inc.             Jeff Fowlow/Ecology & Environment, Inc.
DESCRIPTION:  Memorandum regarding TDD 10-9406-008, Inorganic Data Quality Assurance Review of 1 water
              sample.

 1.11. 6. .  Vol.1-   1030545    DOCID:  70296  IMAGED
      DATE:   9/23*4            PAGES:      5
AUTHOR(S):                                          ADDRESSEE(S):
      .Mark Woodke/Ecology & Environment, Inc.             Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION:  Memorandum regarding TDD 10-9406408, Organic Data Quality Assurance Review of 1 water
              sample.

 1.11.6. .  Vol.1-   1030546    DOCID:  70297  IMAGED
      DATE:   9/28/94            PAGES:      6
AirmOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment, Inc.             Jeff Fowiow/Ecotogy & Environment, Inc.
DESCRIPTION:  Memorandum regarding TDD 10-9406408. Inorganic Data Quality Assurance Review of 4 filter
              samples.

 1.11. 6. .  Vol.1-   1030547    DOCID:  70299  IMAGED
      DATE:   9/28/94            PAGES:      4
AUTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.             Jeff Fowlow/Ecology & Environment Inc.
 9/23/97                        U.S. Environmental Protection Agency, Region 10     Page       22

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(BIAAR) BOOMSNUB/AIRCO - INTERIM ACTION ADMIN. RECORD INDEX

DESCRIPTION:  Memorandum regarding TDD 10-94064)08, Inorganic Data Quality Assurance Review of 2 filter
              samples.

 1.11.6. .  Vol.1-   1030548    DOC ID:  70300 IMAGED
      DATE:  9/30/94-          PAGES:      8
AUTHOR(S):                                          ADDRESSEE(S):
      Marie Woodke/Ecology & Environment, Inc.             Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION:  Memorandum regarding TDD 10-9408-008, Organic Data Quality Assurance Review of 2 water
              samples.

 1.11.6. .  Vol.1-   1030549    DOC ID:  70301 WAGED
      DATE:  9/30/94            PAGES:      5
AUTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.             Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION:  Memorandum regarding TDD 10-9406-008, Inorganic Data Quality Assurance Review of 3 water
              samples.

SUB-HEAD:  1.11.1.  .   Vol.2 -   Sampling Activities

 1.11.6. .  Vol.2-   1030456    DOC ID:  70190 WAGED
      DATE:  10/17/94           PAGES:      3
AUTHOR(S):                                          ADORESSEE(S):
      Mark Woodke/Ecology & Environment Inc.             Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION:  Memorandum regarding TDD 10-9410-022, Inorganic Data Quality Assurance Review.

 1.11.6. .  Vol.2-   1030457    DOC ID:  70191 WAGED
      DATE:  10717/94           PAGES:      5
AUTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.             Jeff Fowlow/Ecology ft Environment, Inc.
DESCRIPTION:  Memorandum regarding TDD 10-4910-022, Inorganic Data Quality Assurance Review of 3 sol
              samples.

 1.11.6. .  Vol.2-   1030458    DOC ID:  70192 WAGED
      DATE:  10717/94           PAGES:      5
AUTHOR(S):                                  ,       ADORESSEE(S):
      Mark Woodke/Ecology & Environment Inc.             Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION:  Memorandum regarding TDD 10-9410-022. Inorganic Data Quality Assurance Review of 3 solid
              samples.

 1.11.6. .  Vol.2-   1030459    DOC ID:  70202 WAGED
      DATE:  10717/94           PAGES:      9
AUTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.             Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION:  Memorandum regarding TDD 10-9410-022, Inorganic Data Quality Assurance Review of 5 filter
              samples.

 1.11.6. .  Vol.2-   1030460    DOC ID:  70205 WAGED
      DATE:  10717/94          PAGES:     14
AUTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc:             Jeff Fowtow/Ecology & Environment Inc.
DESCRIPTION:  MemorandunVregarding TDD 10-9410-022, Inorganic Data Quality Assurance Review of 6 filter
              and 4 soil samples.

 1.11. 6. .  Vol.2-   1030461    DOC ID:  70207 WAGED
      DATE:  10717/94          PAGES:      7
AUTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.             Jeff Fowlow/Ecology & Environment, Inc.
9/23/97                       U.S. Environmental Pmtncflnn Annnrv Rnninn m     Dona

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(BIAAR) BOOMSNUB/A1RCO - INTERIM ACTION ADMM. RECORD INDEX

DESCRIPTION: Memorandum regarding TDD 10-9410-022, Organic Data Quality Assurance Review of 2 water
              samples.

 1.11.6. .  Vol.2-   1030550    DOC ID:  70303  WAGED
      DATE:   10/17/94           PAGES:      4
AUTHOR(S):                                          ADORESSEE(S):
      Mark Woodke/Ecology & Environment, Inc.              Jeff Fowfow/Ecotogy & Environment, Inc.
DESCRIPTION: Memorandum regarding TDD 10-8410-022, Inorganic Data Quality Assurance Review of 2 Squid
              samples.

 1.11. 6. .  Vol.2-   1030551    DOC ID:  70304  WAGED
      DATE:   10/17/94           PAGES:      4
AUTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment, Inc.              Jeff Fowlow/Ecotogy & Environment, Inc.
DESCRIPTION: Memorandum regarding TDD 10-9410-022, Inorganic Data Quality Assurance Review of 2 water
              samples.

 1.11. 6. .  Vol. 2-   1030552    DOC ID:  70305  WAGED
      DATE:   10/17/94           PAGES:      4
AUTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment, Inc.              Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION: Memorandum regarding TDD 10-9410-022, Inorganic Data Quality Assurance Review of 2 water
              samples.

 1.11. 6. .  Vol.2-   1030553    DOC ID:  70308  WAGED
      DATE:   10717/94           PAGES:      9
AUTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment, Inc.              Jeff Fowlow/Ecology & Environment, Inc.
DESCRIPTION: Memorandum reganJng TDD 10-8410-022, Inorganic Data Quafty Assurance Review of 3 water
              samples.

 1.11.6. .  Vol.2.   1030554    DOC ID:  70307  WAGED
      DATE:   10/17/94           PAGES:     13
AUTHOR(S):                                          AODRESSEE(S):
      Mark Woodke/Ecology & Environment, Inc.              Jeff Fowlow/Ecology & Environment, Inc.
DESCRIPTION: Memorandum regarding TDD 10-9410-022, Inorganic Data QuaRty Assurance Review of 2 ftquid
              and 6 Mar samples.

 1.11.6. .  Vol. 2-   1030555    DOC ID:  70308  IMAGED
      DATE:   10/18/94           PAGES:      6
ALTTHOR(S):                                          ADORESSEE(S):
      Mark Woodke/Ecology & Environment me.              Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION: Memorandum regarding TDD 10-9410-022, Organic Data Quality Assurance Review of 2 water
              samples.

 1.11. 6. .  Vol.2-   1030556    DOC ID:  70309  IMAGED
      DATE:   10/19/94           PAGES:      6
ALTTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment, Inc.              Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION: Memorandum regarding TDD 10-9410-022, Inorganic Data Quality Assurance Review of 1 water
              and 3 sofl samples.

 1.11. 8. .  Vol.2-   1030557    DOC ID:  70310  IMAGED
      DATE:   10/19/94           PAGES:      3
ALTTHOR(S):                                          ADORESSEE(S):
      Mark Woodke/Ecology & Environment Inc.              Jeff Fowlow/Ecology & Environment Inc.
9/23/97                        U.S. Environmental Protection Agency, Region 10     Page       24

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(BIAAR) BOOMSNUB/AJRCO - INTERIM ACTION AOMIN. RECORD INDEX

DESCRIPTION: Memorandum regarding TDD 10-9410-022, Inorganic Data Quality Assurance Review of 1 water
              sample.

 1.11.  6. .  Vol.2-   1030462    DOC ID:   70209 IMAGED
      DATE:   10/20/94           PAGES:       8
AirTHOR(S):          ""                               ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.              Jeff Fowtow/EcoJcgy & Environment Inc.
DESCRIPTION: Memorandum regarding TDD 10-9410-022, Organic Data Quality Assurance Review of 2 water
              samples.

 1.11.6. .  Vol.2-   1030558    DOC ID:   70311 MAGED
      DATE:   10720/94           PAGES:       4
ALTTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.              Jeff Fowtow/Ecology & Environment Inc.
DESCRIPTION: Memorandum regarding TDD 10-9410-022. Inorganic Data Quality Assurance Review of 2 water
              samples.

 1.11.  6. .  Vol.2-   1030559    DOC ID:   70312 MAGED
      DATE:   10/20/94           PAGES:       8
AUTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.              Jeff Fowiow/Ecology & Environment Inc.
DESCRIPTION: Memorandum regarding TDD 10-9406-006, Organic Data Quality Assurance Review of 2 water
              samples.

 1.11.6. .  Vol. 2-   1030463    DOC ID:   70210 MAGED
      DATE:   10/24/04           PAGES:     15
AtJTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.              Jeff Fowiow/Ecology & Environment Inc.
DESCRIPTION: Memorandum regarding TDD 10-9410-022, Inorganic Data Quafty Assurance Review of 2 sol and
              8 filter samples.

 1.11.6. .  Vol.2-   1030560    DOC ID:   70313 MAGED
      DATE:   10/24/94           PAGES:       7
ALTTHOR(S):                                          ADORESSEE(S):
      Mark Woodke/Ecology & Environment, Inc.         .     Jeff Fowiow/Ecology & Environment Inc.
DESCRIPTION: Memorandum regarding TDD 10-9410-022. Organic Data QuaBty Assurance Review of 2 water
              samples.

 1.11.6. .  Vol.2-   1030464    DOC ID:   70211 MAGED
      DATE:   10/26/94           PAGES:       5
AUTHOR(S):                                          ADORESSEE(S):
      Mark Woodke/Ecology & Environment. Inc.              Jeff Fowiow/Ecology & Environment Inc.
DESCRIPTION: Memorandum regarding TDD 10-9410-022. Inorganic Data Quality Assurance Review of 2 water
              samples.

 1.11.  6. .  Vol. 2-   1030465    DOC ID:   70212 IMAGED
      DATE:   11/1/94            PAGES:     10
AirTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.              Jeff Fowiow/Ecology & Environment, Inc.
DESCRIPTION: Memorandum regarding TDD 10-9410-022. Organic Data Quality Assurance Review of 3 water
              samples.

 1.11.6. .  Vol.2-   1030466    DOC ID:   70213 IMAGED
      DATE:   11/1/94            PAGES:       7
AUTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.              Jeff Fowiow/Ecology & Environment, Inc.
9/23/97                       U.S. Environmental Protection Aaencv Reolon 10      Paae      75

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(BIAAR) BOOMSNUB/AJRCO - INTERIM ACTION ADMW. RECORD INDEX

DESCRIPTION:  Memorandum regarding TDD 10-9410422, Organic Data Quality Assurance Revtew of 2 wcter
              samples.

 1.11. 6. .   Vol.2-   1030561    DOC ID:  70314 WAGED
      DATE:   11/1/94           PAGES:      8
AUTHOR(S):            ~                             ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.             Jeff Fowtow/Ecotogy & Environment, Inc.
DESCRIPTION:  Memorandum regarding TDD 10-9410-022, Inorganic Data Quality Assurance Review of 6 soft
              samples.

 1.11. 6. .   Vol.2-   1030562    DOC ID:  70315 MAGED
      DATE:   11/1/94           PAGES:     11
AUTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment, Inc.             Jeff Fowtow/Ecology & Environment Inc.
DESCRIPTION:  Memorandum regarding TDD 10-9410-022, Inorganic Data Quality Assurance Review of 4 air fitter
              samples.

 1.11.6. .   Vol.2-   1030563    DOC ID:  70316 MAGED
      DATE:   11/1/94           PAGES:      5
AUTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.             Jeff Fowtow/Ecology & Environment Inc.
DESCRIPTION:  Memorandum rsganing TDD 10-9410-022. Inorganic Data Quality Assurance Review of 3 water
              samples.

 1.11.6. .   Vol.2-   1030564    DOC ID:  70317 MAGED
      DATE:   11/1/94           PAGES:       4
AirmOR(S):                                          ADDRESSEE(S):
      Mark Woodke^ootogy & Environment, Inc.             Jeff Fowtow/Ecology & Environment, Inc.
DESCRIPTION:  Memorandum rsganing TDD 10-9410-022, Inorganic Data Quaflty Assurance Review of 2 sol
              samples.

 1.11.6. .   Vol.2-   1030565    DOC ID:  70318 MAGED
      DATE:   11/1/94           PAGES:     12
AUTHOR(S):                                          ADORESSEE(S):
      Mark Woodke/Ecology & Environment, Inc.             Jeff Fowtow/Ecotogy & Environment, Inc.
DESCRIPTION:  Memorandum regarding TDD 10-9410-022, Inorganic Data Quality Assurance Review of 9 air fitter
              samples.

 1.11.6. .   Vol.2-   1030S66    DOC ID:  70319 MAGED
      DATE:   11/1/94           PAGES:      4
AUTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.             Jeff Fowtow/Ecotogy & Environment Inc.
DESCRIPTION:  Memorandum regarding TDD 10-9410-022, Inorganic Data Quality Assurance Review of 2 water
              samples.

 1.11.6. .   Vol.2-   1030567    DOC ID:  70320 IMAGED
      DATE:   11/1/94           PAGES:      5
AUTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.             Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION:  Memorandum regarding TDD 10-9410-022, Inorganic Data Quality Assurance Review of 3 water
              samples.

 1.11.6. .   Vol.2-   1030568    DOC ID:  70321 MAGED
      DATE:   11/1/94           PAGES:     14
AUTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.       .      Jeff Fowtow/Ecology & Environment Inc.
9/23/97                       U.S. Environmental Protection Agency. Region 10     Page      26

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(BIAAR) BOOMSNUB/AIRCO - INTERIM ACTION ADMIN. RECORD INDEX

DESCRIPTION:  Memorandum regarding TDD 10-0410-022. Inorganic Data Quality Assurance Review of 9 air finer
              samples.

 1.11.6. .   Vol.2-   1030467    DOC ID:  70214  WAGED
      DATE:   11/2/94           PAGES:      3
AUTHOR(S).                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.             Jeff Fowlow/Ecology & Environment. Inc.
DESCRIPTION:  Memorandum regarding TDD 10-9410-022. Inorganic Data Quality Assurance Review of 1 fitter
              sample.

 1.11.6. .   Vol.2-   1030468    DOC ID:  70215  WAGED
      DATE:   11/2/94           PAGES:      5
AUTHOR(S):                                          ADORESSEE(S):
      Mark Woodke/Ecology & Environment Inc.             Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION:  Memorandum regarding TDD 10-9410-022. Inorganic Data Quality Assurance Review of 3 water
              samples.

 1.11. 6. .   Vol.2-   1030469    DOC ID:  70216  WAGED
      DATE:   11/2/94           PAGES:      7
AUTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.             Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION:  Memorandum regarding TDD 10-9410-022, Organic Data Quality Assurance Review of 2 water
              samples.

 1.11. 6. .   Vol.2-   1030714    DOC ID:  70322  WAGED
      DATE:   11/2/94           PAGES:      17
AUTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.             Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION:  Memorandum ragarfng TDD 10-9410422. Organic Data Quality Assurance Review of 4 air filter
              samples.

 1.11.6. .   Vol.2-   1030569    DOCK):  70323  WAGED
      DATE:   11/2/94           PAGES:       8
AUTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.             Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION:  Memorandum regarding TDD 10-9410422, Inorganic Data Quality Assurance Review of 1 sol and
              2 water samples.

 1.11.6. .   Vol.2-   1030570    DOC ID:  70324  WAGED
      DATE:   11/2*4           PAGES:      22
AUTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.             Jeff Fowlow/Ecology 4 Environment, Inc.
DESCRIPTION:  Memorandum regarding TDD 10-9410-022, Inorganic Data Quality Assurance Review of 10 soil
              and 5 water samples.

 1.11.6. .   Vol.2-   1030571    DOC ID:  70325  IMAGED
      DATE:   11/2*4           PAGES:      10
AUTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.             Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION:  Memorandum regarding TDD 10-9410-022, Inorganic Data Quality Assurance Review of 8 fitter
              samples.

 1.11.6. .   Vol.2-   1030572    DOC ID:  70326  IMAGED
      DATE:   11/2/94           PAGES:.      5
AUTHOR(S):                                   -       ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.             Jeff Fowlow/Ecology & Environment Inc.
9/23/97                       U.S. Environmental Protection Aoencv. Reaton 10     Paae       27

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(BIAAR) BOOMSNUB/AJRCO - INTERIM ACTION AOMIN. RECORD INDEX

DESCRIPTION:  Memorandum regarding TDD 10-9410-022, Inorganic Data QuaOty Assurance Review of 3 water
              samples.

 1.11.6.  .  Vol. 2-   1030470    DOC ID:  70217  IMAGED
      DATE:   11/4/94  -        PAGES:      8
AUTHuR(S):                                          ADORESSEE(S):
      Mark Woodke/Ecology & Environment, Inc.             Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION:  Memorandum regarding TDD 10-9410-022, Inorganic Data Quality Assurance Review of 6
              sediment samples.

 1.11.6.  .  Vol.2-   1030573    DOC ID:  70327  MAGED
      DATE:   11/4/94           PAGES:      5
AUTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment, Inc.             Jeff Fowlow/Ecology & Environment, Inc.
DESCRIPTION:  Memorandum regarding TDD 10-9410-022, Organic Data Quality Assurance Review of 3 water
              samples.

 1.11. 6.  .  Vol.2-   1030574    DOC ID:  70328  MAGED
      DATE:   11/4/94           PAGES:     13
AUTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment, Inc.             Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION:  Memorandum regarding TDD 10-9410-022, Inorganic Data Quality Assurance Review of 1 water
              and 10 soil samples.

 1.11.6.  .  Vol.2-   1030575    DOC ID:  70329  MAGED
      DATE:   11/4/94           PAGES:     34
AUTHOR(S):                                          AODRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.             Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION:  Memorandum regarolng TDD 10-9410-022, Inorganic Data Quality Assurance Review of 4
              concrete and 28 sol samples.

 1.11.6.  .  Vol.2-   1030576    DOCK):  70330  MAGED
      DATE:   11/4*4           PAGES:     12
AirmOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.             Jeff Fowtow/Ecotogy & Environment Inc.
DESCRIPTION:  Memorandum regarolng TDD 10-9410-022, Inorganic Data Quality Assurance Review of 10
              concrete samples.

 1.11.6.  .  Vol.2-   1030577    DOC ID:  70331  MAGED
      DATE:   11/4/94           PAGES:      7
AUTHOR(S):                                          AODRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.             Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION:  Memorandum regarding TDD 10-9410-022, Inorganic Data Quality Assurance Review of 5 water
              samples.

 1.11.6.  .  Vol.2-   1030471    DOC ID:  70218  MAGED
      DATE:   11/6/94           PAGES:     14
AUTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke^cology & Environment Inc.             Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION:  Memorandum regarding TDD 10-9410-022, Inorganic Data Quality Assurance Review of 9 air fitter
              samples.

 1.11.6.  .  Vol.2-   1030472    DOC ID:  70219  MAGED
      DATE:   11/6/94           PAGES:     14
AirTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.             Jeff Fowlow/Ecology & Environment Inc.
9/23/97                       U.S. Environmental Protection Agency, Region 10     Page       28

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(B1AAR) BOOMSNUB/AIRCO • INTERIM ACTION AOMIN. RECORD INDEX

DESCRIPTION:  Memorandum regarding TDD 10-8410-022. Inorganic Data Quality Assurance Review of 9 air fitter
              samples.

 1.11.6. .   Vol.2-   1030473    DOC ID:  70220  WAGED
      DATE:   11/6/94           PAGES:     17
ALJTHOR(S):           ~                               ADDRESSEE(S):
      Mark Woodka/Ecology & Environment Inc.              Jeff Fowlow/EcoJogy & Environment, Inc.
DESCRIPTION:  Memorandum regarding TDD 10-9410-022. Inorganic Data Quality Assurance Review of 1 water,7
              air fitter and 5 solid/soU/sediment samples.

 1.11.6. .   Vol.2-   1030578    DOC ID:  70333  WAGED
      DATE:   11/6/94           PAGES:      6
AUTHOR(S):                                           ADDRESSEE(S):
      Mark Woodka/Ecology & Environment, Inc.              Jeff Fowtow/Ecology & Environment Inc.
DESCRIPTION:  Memorandum regarding TDD 10-9410-022, Organic Data Quality Assurance Review of 2 sorbent
              tube samples.

 1.11.6. .   Vol.2-   1030570    DOC ID:  70334  WAGED
      DATE:   11/6/94           PAGES:     16
AUTHOR(S):                                           ADDRESSEE(S):
      Mark Woodka/Ecology A Environment Inc.              Jeff Fowlow/Eoology & Environment Inc.
DESCRIPTION:  Memorandum regards^) TDD 10-0410-022, Inorganic Data Quality Assurance Review of 7 sir fitter
              and 4 soH samples.

 1.11.6. .   Vol.2-   1030580    DOC ID:  70335  WAGED
      DATE:   11/6/94           PAGES:     10
AUTHOR(S):                                           ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.              Jeff Fowtow/Ecology & Environment Inc.
DESCRIPTION:  Memorandum reoardng TDD 10-94104)22, Inorganic Data Quasty Assurance Review of 8 sir filter
              samples.

 1.11.6. .   Vol.2-   1030581    DOC ID:  70337  WAGED
      DATE:   11/16/94           PAGES:     14
AJTHOR(S):                                           ADDRESSEE(S):
      Mark Woodka/Ecology ft Environment Inc.              Jeff Fowtow/Ecology & Environment inc.
DESCRIPTION:  Memorandum reganJng TDD 10-9410422, Inorganic Data Quafity Assurance Review of 9 fitter
              and 3 water .samples.

 1.11.6. .   Vol.2-   1030582    DOC ID:  70339  WAGED
      DATE:   11/16/94           PAGES:     16
AUTHORS):                                           ADORESSEE(S):
      Mark Woodke/Ecology & Environment Inc.              Jeff Fowtow/Ecology & Environment Inc.
DESCRIPTION:  Memorandum regarding TDD 10-9410-022. Inorganic Data Quality Assurance Review of 9 air fitter
              samples.

 1.11.6. .   Vol.2-   1030583    DOC ID:  70340  WAGED
      DATE:   11/16/94           PAGES:     17
AUTHOR(S):                                           ADDRESSEE(S):
      Mark Woodke/Ecology A Environment, Inc.              Jeff Fowtow/Ecology & Environment Inc.
DESCRIPTION:  Memorandum'regarding TDD 10-9410-022, lnorgan
-------
(BIAAR) BOOMSNUB/AJRCO - INTERIM ACTION ADMIN. RECORD INDEX

DESCRIPTION: (Memorandum regarding TDD 10-9410-022. Organic Data Quality Assurance Review of 2 water
              samples.

 1.11. 6. .   Vol.2-   1030475    DOC ID:   70222  IMAGED
      DATE:   11/21/94 -         PAGES:      12
Al/THOR(S):                                           ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.             Jeff Fowlow/Ecology & Environment, Inc.
DESCRIPTION: Memorandum regarding TDD 10-9410-022, Inorganic Data Quality Assurance Review of 10 sofl
              samples.

 1.11. 6. .   Vol.2-   1030476    DOC ID:   70223  WAGED
      DATE:   11/21/94           PAGES:      4
AUTHOR(S):                                           ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.             Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION: Memorandum regarding TDD 10-9410-022, Inorganic Data Quality Assurance Review of 1 water
              •ample.

 1.11.6. .   Vol.2-   1030477    DOC ID:   70224  WAGED
      DATE:   11/21/94           PAGES:      5
ALTTHOR(S):                                           ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.             Jeff Fowlow/Ecology & Environment inc.
DESCRIPTION: Memorandum regarding TDD 10-9410-022, Organic Data Quality Assurance Review of 3 air fHter
              samples.

 1.11.6. .   Vol.2-   1030478    DOC ID:   70225  WAGED
      DATE:   11/21/94           PAGES:      19
AUTHOR(S):                                           ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.             Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION: Memorandum regarding TDD 10-9410-022. Organic Data Quatty Assurance Review of 8 son
              samples.

 1.11.6. .   Vol.2-   1030479    DOCK):   70226  WAGED
      DATE:   11/21/94           PAGES:      11
At/THOR(S):                                           ADORESSEE(S):
      Mark Woodke/Ecology & Environment Inc.             Jeff Fowlow/Ecology A Environment Inc.
DESCRIPTION: Memorandum regarding TDD 10-9410-022. Inorganic Data QuaHty Assurance Review of 8 soi
              samples.

 1.11.6. .   Vol.2-   1030460    DOC ID:   70227  WAGED
      DATE:   11/21/94           PAGES:      19
AUTHOR(S):                                           ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.             Jeff Fowlow/Ecology & Environment, Inc.
DESCRIPTION: Memorandum regarding TDD 10-9410-022, Organic Data Quality Assurance Review of 8 soH
              samples.

 1.11.6. .   Vol.2-   1030481    DOC ID:   70228  IMAGED
      DATE:   11/21/94           PAGES:      19
AUTHOR'S):                                           ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.             Jeff Fowlow/Ecology & Environment, Inc.
DESCRIPTION: Memorandum regarding TDD 10-9410-022. Organic Data Quality Assurance Review of 6 soil
              samples.

 1.11.6. .   Vol.2-   1030482    DOC ID:   70229  WAGED
      DATE:   12/8/94           PAGES:      24
AirTHOR(S):                                    •       ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.             Jeff Fowlow/Ecology & Environment Inc.
9/23/97                        U.S. Environmental Protection Agency, Region 10     Page      30

-------
(BIAAR) BOOMSNUB/AIRCO - INTERIM ACTION ADMIN. RECORD INDEX

DESCRIPTION: Memorandum regarding TDD 10-0410-022, Inorganic Data Quality Assurance Review of 8 fitter, 6
              soil and 3 water samples.

 1.11.6. .   Vol.2-   1030584    DOC ID:   70342 MAGED
      DATE:   12/8794            PAGES:      6
AUTHOR(S):                                           ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.              Jeff Fowlow/Ecology & Environment, Inc.
DESCRIPTION: Memorandum regarding TDD 10-9410-022, Organic Data Quality Assurance Review of 2 soil
              samples.

 1.11.6. .   Vol.2-   1030585    DOC ID:   70343 MAGED
      DATE:   12/8/94            PAGES:      6
ALTTHOR(S):                                           ADDRESSEE(S):
      Mark Woodke/Ecology & Environment, Inc.              Jeff Fowlow/Ecology & Environment, Inc.
DESCRIPTION: Memorandum regarding TDD 10-9410-022, Organic Data Quality Assurance Review of 2 sod
              samples.

 1.11.6. .   Vol.2-   1030586    DOC ID:   70344  IMAGED
      DATE:   12/8/94            PAGES:       7
AUTHOR(S):                                           ADDRESSEE(S):
      Mark Woodke/Ecology & Environment, Inc.              Jeff Fowlow/Ecology & Environment, Inc.
DESCRIPTION: Memorandum regarding TDD 10-9410-022, Inorganic Data Quality Assurance Review of 1 fitter
              and 2 water samples.

 1.11.6. .   Vol.2-   1030587    DOC ID:    70345  MAGED
      DATE:   12/8/94            PAGES:       6
AUTHOR(S):                                           ADDRESSEE(S):
      Mark Woodke/Ecology & Environment, Inc.              Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION: Memorandum ragardkig TDD 10-9410-022, Inorganic Data Quality Assurance Review of 1 water
              and 2 sol samples.

 1.11.6. .   Vol.2-   1030588    DOC ID:    70346  MAGED
      DATE:   12/8/94            PAGES:       7
AUTHOR(S):                                           ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.              Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION: Memorandum regarding TDD 10-9410-022, Organic Data Quality Assurance Review of 2 water
              and 3 air filter samples.

 1.11.6. .   Vol.2-   1030589    DOC ID:    70347  MAGED
      DATE:   12/8/94            PAGES:       9
AUTHOR(S):                                           ADORESSEE(S):
      Mark Woodke/Ecology & Environment Inc.              Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION: Memorandum regarding TDD 10-9410-022. Organic Data Quality Assurance Review of 1 soil and
              2 water samples.

 1.11.6. .   Vol.2-   1030590    DOC ID:   70348  IMAGED
      DATE:   12/8/94            PAGES:      13
AUTHOR(S):                                           ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.              Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION: Memorandum regarding TDD 10-9410-022, Inorganic Data Quality Assurance Review of 9 fitter
              samples.

 1.11.6. .   Vol.2-   1030591     DOC ID:   70349  IMAGED
      DATE:   12/12/94            PAGES:     19
ALTTHOR(S):                                           ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.              Jeff Fowlow/Ecology & Environment Inc.
9/23/97                       U.S. Environmental Protection Aaencv Reoton 10     Paoe       31

-------
 (BIAAR) BOOMSNUB/AJRCO • INTERIM ACTION AOMIN. RECORD INDEX

 DESCRIPTION: Memorandum regarding TDD 1 r>9410-022, Inorganic Data Quality Assurance Review of 3 air filter
              and 12 soil samples.

 SUB-HEAD:   1.11. f. .   Vol.3-   Sampling Activities

 1.11.6.  .  Vol.3-   1030483   DOC ID:  70230  WAGED
      DATE:   12/18/94           PAGES:      4
 AUTHOR(S):                                           ADDRESSEE(S):
      Mark WoodkeriEcofogy & Environment Inc.              Jeff Fowtow/Ecology & Environment Inc.
 DESCRIPTION: Memorandum regarding TDD 10-9410-022. Organic Data Quality Assurance Review of 2 water
              samples.

 1.11. 6.  .  Vol. 3-   1030484   DOC ID:  70231  WAGED
      DATE:   12/16794           PAGES:      8
 ALTTHOR(S):                                           ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.              Jeff Fowfow/Ecology & Environment Inc.
 DESCRIPTION: Memorandum regarding TDD 10-9410-022, Inorganic Data Quality Assurance Review of 5 water
              samples.

 1.11. 6.  .  Vol.3-  1030485   DOC ID:  70232  IMAGED
      DATE:   12/16/94           PAGES:       6
 AUTHOR(S):                                           ADORESSEE(S).
      Mark Woodke/Ecology & Environment Inc.              Jeff Fowlow/Ecoiogy & Environment Inc.
 DESCRIPTION: Memorandum regarding TDD 10-9410-022, Inorganic Data Quality Assurance Review of 3 water
              samples.

 1.11. 6.  .  Vol.3-  1030486   DOC ID:  70233  WAGED
      DATE:   12/16*4           PAGES:       4
ALTTHOR(S):                                           ADORESSEE(S):
      Mark Woodke/Ecology & Environment hie.              Jeff Fowfow/Ecology A Environment Inc.
DESCRIPTION: Memorandum reganfng TDD 10-9410-022, Inorganic Data Quality Assurance Review of 1 water
              sample.

 1.11.6.  .  Vol.3-  1030487   DOC ID:  70234  IMAGED
      DATE:   12/18/94           PAGES:       4                    .
AUTHOR(S):                                           ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.              Jeff Fowfow/Ecology & Environment Inc.
DESCRIPTION: Memorandum regarding TDD 10-9410-022, Inorganic Data Quality Assurance Review of 1 water
              sample.

 1.11. 6.  .  Vol.3-  1030488   DOC ID:  70235  IMAGED
      DATE:   12/16/94           PAGES:       4
AUTHOR(S):                                           ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.              Jeff Fowlow/Ecoiogy & Environment, Inc.
DESCRIPTION: Memorandum regarding TDD 10-9410-022, Organic Data Quality Assurance Review of 2 water
              samples.

 1.11. 6.  .  Vol.3-  1030489   DOC ID:  70236  IMAGED
      DATE:   12/16*4           PAGES:      7
AUTHOR(S):                                           ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.              Jeff Fowlow/Ecoiogy & Environment Inc.
DESCRIPTION: Memorandum regarding TDD 10-9410-022, Organic Data Quality Assurance Review of 2 water
              samples.

 1.11. 6.  .  Vol.3-  1030490   DOC ID:  70237  IMAGED
      DATE:   12/20/94           PAGES:     15
AUTHOR(S):                                           ADDRESSEE(S):
9/23/97                       U.S. Environmental Protection Agency, Region 10     Page      32

-------
(BIAAR) BOOMSNUB/A1RCO - INTERIM ACTION ADMIN. RECORD INDEX

      Mark Woodke/Ecoiogy A Environment Inc.             Jeff Fowlow/Ecotogy & Environment, Inc.
DESCRIPTION: Memorandum regarding TDD 10-0410-022, Inorganic Data Quality Assurance Review of 8 soil and
              3 water samples.

 1.11.6. .  Vol.3-   1030491    DOC ID:   70238 IMAGED
      DATE:   12/20/94"          PAGES:      12
AUTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecoiogy & Environment Inc.             Jeff Fowlow/Ecotogy & Environment Inc.
DESCRIPTION: Memorandum regarding TDD 10-9410-022. Inorganic Data Quality Assurance. Review of 4 soil and
              4 filter samples.

 1.11.6. .  Vol.3-   1030482    DOC ID:   70239 WAGED
      DATE:   12/20/94           PAGES:       4
AITTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecoiogy & Environment Inc.             Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION: Memorandum regarding TDD 10-9410-022, Organic Data Quality Assurance Review of 2 water
              samples.               .

 1.11.6. .  Vol.3-   1030493    DOC ID:   70240 WAGED
      DATE:   12/22/94           PAGES:       6
A(JTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecoiogy & Environment Inc.              Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION: Memorandum regarding TDD 10-9410-022, Inorganic Data Quality Assurance Review of 4 wipe
              samples.

 1.11.6. .   Vol.3-   1030494    DOC ID:   70241  WAGED
      DATE:   12/22/94           PAGES:       6
AUTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecoiogy A Environment Inc.              Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION: Memorandum regarolng TDD 10-9410-022, Inorganic Data Quality Assurance Review.

 1.11.6. .   Vol.3-   1030495    DOC ID:   70242 WAGED
      DATE:   12/27/94           PAGES:      11
AUTHOR(S):                                          ADDRESSEE(S):
      Marie Woodke/Ecoiogy ft Environment Inc.              Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION: Memorandum regarding TDD 10-0410-022. Inorganic Data Quality Assurance Review of 9 filter
              samples.

 1.11.6. .   Vol.3-   1030496    DOC ID:   70243 WAGED
      DATE:   12/27/94           PAGES:       5
ALTTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecoiogy ft Environment Inc.             Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION: Memorandum regarding TDD 10-9410-022. General Chemistry Data Quality Assurance Review of
              4 W-vol filter samples.

 1.11. 6. .   Vol.3-   1030497    DOC ID:   70244 IMAGED
      DATE:   12)27/94           PAGES:      12
AUTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecoiogy ft Environment Inc.             Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION: Memorandum regarding TDD 10-9410-022. Organic Data Quality Assurance Review of 1 water
              and 3 soil samples.

 1.11.6. .   Vol.3-   1030498    DOC ID:   7024S IMAGED
      DATE:   12/27/94           PAGES:       9
AUTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecoiogy & Environment Inc.             Jeff Fowiow/Ecology ft Environment Inc.
9/23/97                       U.S. Environmental Protection Aaencv Reaion 10      Paa*

-------
(BIAAR) BOOMSNUB/A1RCO - INTERIM ACTION ADMIN. RECORD INDEX

DESCRIPTION:  Memorandum regarding TDD 10-9410-022. Organic Data Quality Assurance Review of 3 soil
              camples.

 1.11.6. .   Vol.3-   1030499    DOC ID:  70246  WAGED
      DATE:   12/27/94          PAGES:      8
AJTHOR(S):                                           ADDRESSEE(S):
      Mark Woodke/Ecology & Environment. Inc.              Jeff Follow/Ecology & Environment Inc.
DESCRIPTION:  Memorandum regarding TDD 10-9410-022, Organic Data Quality Assurance Review of 3 so*
              samples.

 1.11.6. .   Vol.3-   1030500    DOC ID:  70247  IMAGED
      DATE:   12/27/94          PAGES:      6
AUTHOR(S):                                           ADDRESSEE(S):
      Mark Woodke/Ecology & Environment, Inc.              Jeff Fowiow/Ecotogy & Environment Inc.
DESCRIPTION:  Memorandum regarding TDD 10-9410-022. Inorganic Data Quality Assurance Review of 3 soH
              samples.

 1.11.6. .   Vol.3-   1030501    DOC ID:  70248  IMAGED
      DATE:   12/29/94          PAGES:      9
AUTHOR(S):                                           ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.              Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION:  Memorandum regarding TDD 10-9410-022, Inorganic Data Quafity Assurance Review of 5 sol
              samples.

 1.11. 6. .   Vol.3-   1030502    DOC ID:  70249  WAGED
      DATE:   1/9/95            PAGES:      3
ALfTHOR(S):                                           ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.              Jeff Fowlow/Ecoiogy & Environment Inc.
DESCRIPTION:  Memorandum regarding TDD 10-9410-022. General Chemistry Data Qualty Assurance Review of
              1 water sample.

 1.11.6. .   Vol.3-   1030503    DOC ID:  70250  WAGED
      DATE:   1/9/95            PAGES:      7
AUTHOR(S):                                           ADORESSEE(S):
      Mark Woodke/Ecology & Environment Inc.              Jeff Fowlow/Ecoiogy & Environment Inc.
DESCRIPTION:  Memorandum regarding TDD 10-9410-022, Inorganic Data Quaflty Assurance Review of 4 water
              samples.

 1.11. 6. .  Vol.3-   1030504    DOC ID:  70251  WAGED
      DATE:   1/10/95           PAGES:      9
AUTHOR(S):                                           ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.              Jeff Fowlow/Ecoiogy & Environment Inc.
DESCRIPTION:  Memorandum regarding TDD 10-9410-022. Inorganic Data Quality Assurance Review of 4 water
              and 2 soil samples.

 1.11.6. .  Vol.3-   1030505    DOC ID:  70252  IMAGED
      DATE:   1/10/95           PAGES:      6
AUTHOR(S):                                           ADORESSEE(S):
      Mark Woodke/Ecology & Environment Inc.              Jeff Fowlow/Ecoiogy & Environment Inc.
DESCRIPTION:  Memorandum regarding TDD 10-9410-022, Organic Data Quality Assurance Review of 3 water
              samples.

 1.11.6.  .  Vol. 3-  1030506    DOC ID:  70253  IMAGED
      DATE:   1/10/95           PAGES:      9
AUTHOR(S):                                           ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.              Jeff Fowlow/Ecoiogy & Environment, Inc.
 9/23/97                        U.S. Environmental Protection Agency. Region 10     Page      34

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(BIAAR) BOOMSNUB/AJRCO - INTERIM ACTION AOMIN. RECORD INDEX

DESCRIPTION:  Memorandum regarding TDD 10-9410-022. Organic Data Quality Assurance Review of 3 water
              samples.

 1.11.6. .   Vol.3-   1030592    DOC ID:   70350 IMAGED
      DATE:   1/10/95             PAGES:       8
AUTHOR(S):           -                               ADDRESSEE(S):
      Mark Woodke/Ecoiogy & Environment, Inc.             Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION:  Memorandum regarding TDD 10-9410-022, Inorganic Data Quality Assurance Review of 3 water
              samples.

 1.11.6. .   Vol.3-   1030514    DOC ID:   70264 WAGED
      DATE:   2/16/95             PAGES:'     22
AUTHOR(S):                                           ADDRESSEE(S):
      Mark Woodke/Ecoiogy & Environment Inc.             Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION:  Memorandum regarding TDD 10-9410-022, Inorganic Data Quality Assurance Review of 20 water
              samples.

 1.11.6. .   Vol.3-   1030515    DOC ID:   70265 WGED
      DATE:   2/16/95             PAGES:     45
AUTHOR(S):                                           ADDRESSEE(S):
      Mark Woodke/Ecotogy & Environment Inc.             Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION:  Memorandum regardlng-TDD10-04104)22, Organic Data Quality Assurance Review of 21. water
              samples.

 1.11.6. .   Vol.3-   1030516    DOC ID:   70266 WAGED
      DATE:   2/22/95             PAGES:       8
AUTHOR(S):                                           ADDRESSEE(S):
      Mark Woodke/Ecoiogy & Environment Inc.             Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION:  MamorandunTfeganJng TDD 10-0410-022, Organic Data Quality Assurance Review of 2 water
              samples and three charcoal tube samples.

 1.11.6. .   Vol.3-   1030507    DOC ID:   70254 MAOEO
      DATE:   2/27*5             PAGES:     21
AUTHOR(S):                                           ADORESSEE(S):
      "Mark Woodke/Ecoiogy & Environment Inc.             Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION:  Memorandum regarolng TDD 10-9410-022, Inorganic Data dually Assurance Review of 8 soil
              samples.

 1.11.6. .   Vol.3-   1030506    DOC ID:   70255 MAGED
      DATE:   2/27/95             PAGES:     22
AUTHOR(S):                                           ADDRESSEE(S):
      Mark Woodke/Ecoiogy & Environment, Inc.             Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION:  Memorandum regarding TDD 10-9410-022. Inorganic Data Quality Assurance Review of 18 water
              samples.

 1.11.6. .   Vol. 3-   1030517    DOC ID:   70267 IMAGED
      DATE:   228/95             PAGES:     13
AUTHOR(S):                                           AODRESSEE(S):
      Mark Woodke/Ecoiogy & Environment. Inc.             Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION:  Memorandum regarding TDD 10-9410-022, Inorganic Data Quality Assurance Review of 3 water
              samples and 6 soil samples.

 1.11.6. .   Vol.3-   1030511    DOC ID:   70258 IMAGED
      DATE:   3/1/95             PAGES:     13
AUTHOR(S):                                           AODRESSEE(S):
      Mark Woodke/Ecoiogy & Environment Inc.             Jeff Fowlow/Ecology & Environment Inc.
9/23/97                        US f-nvlfonmanhil PrntiwrNnn An*nrv Poninn m     Don*

-------
(BIAAR) BOOMSNUB/AJRCO - INTERIM ACTION ADMIN. RECORD INDEX

DESCRIPTION: Memorandum regarding TDD 10-9410-022, Organic Data Quality Assurance Review of S air finer
              samples.

 1.11.6. .   Vol.3-   1030509   DOC ID:  70256  IMAGED
      DATE:   3/2/95   ~        PAGES:      6
AUTHOR(S):                                           ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.             Jeff Powtow/Ecology & Environment, Inc.
DESCRIPTION: Memorandum regarding TDD 10-9410-022, Inorganic Data Quality Assurance Review of 3 water
              samples.

 1.11.6. .   Vol.3-   1030518   DOC ID:  70268  WAGED
      DATE:   3/2/95            PAGES:     23
AUTHOR(S):                                           ADDRESSEE(S):
      Mark Woodke/Ecology & Environment, he.             Jeff Fowiow/Ecotogy & Environment, Inc.
DESCRIPTION: Memorandum regarding TDD 10-9410-022, Inorganic Data Quality Assurance Review of 20 water
              samples.

 1.11.6. .   Vol.3-   1030593   DOClD:  70351  MAGED
      DATE:   3/2/95            PAGES:      4
AUTHOR(S):                                           ADDRESSEE(S):
      Mark Woodke/Ecology & Environment, Inc.             Jeff Fowlow/Ecology A Environment Inc.
DESCRIPTION: Memorandum regarding TDD f10-9410-022B, Organic Data QuaRty Assurance Review of 2 water
              samples.

 1.11. 6. .   Vol.3-   1030512   DOC ID:  70259  MAGED
      DATE:   3/3/95            PAGES:     41
AUTHOR(S):                                           ADDRESSEE(S):
      Mark Woodke£cology & Environment Inc.              Jeff Fowtow/Ecology & Environment Inc.
DESCRIPTION: Memorandum reganSng TDD 10-9410422. Organic Data Quality Assuranc* Review of 18 water
              samples.

 1.11.6. .   Vol.3-   1030519   DOCK):  70269  MAGED
      DATE:   3/3/95            PAGES:     19
AUTHOR(S):                                           ADORESSEE(S):
      Mark Woodke/Ecology & Environment Inc.             Jeff Fowiow/Ecotogy a\ Environment inc.
DESCRIPTION: Memorandum reganlng TDD 10-9410-022, Inorganic Data Quality Assurance Review of 17 water
              samples.

 1.11.6. .   Vol.3-   1030510   DOC ID:  70257  MAGED
      DATE:   3/13/95            PAGES:      3
ALTTHOR(S):    .                                       ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.             Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION: Memorandum regarding TDD 10-9410-022, Inorganic Data Quality Assurance Review of 1 soM
              samples.

 1.11.6. .   Vol.3-   1030606   DOC ID:  70407  MAGED
      DATE:   3/13/95            PAGES:     13
AUTHOR(S):                                           ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.             Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION: Memorandum regarding TDD 10-9410-022, Organic Data Quality Assurance Review of 3 filter and
              2 soH samples.

 1.11. 6. .   Vol.3-   1030520   DOC ID:  70270  MAGED
      DATE:   3/15/95            PAGES:      7
AUTHOR(S):                                           ADDRESSEE(S):
      Mark Woodke/Ecology & Environment, Inc.             Jeff Fowlow/Ecology & Environment Inc.
9/23/97                       U.S. Environmental Protection Agency. Region 10     Page       36

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(BIAAR) BOOMSNUB/A1RCO - INTERIM ACTION ADMIN. RECORD INDEX

DESCRIPTION: Memorandum regarding TDD 10-0410-022, Inorganic Data Quality Assurance Review of 3 water
              samples.

 1.11.6. .   Vol.3-   1030521    DOC ID:  70271  IMAGED
      DATE:   3/15/95            PAGES:      5
AUTHOR(S):           -                               ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.              Jeff Fowlow/Ecoiogy & Environment, Inc.
DESCRIPTION: Memorandum regarding TDD 10-9410-022. Inorganic Data Quality Assurance Review of 2 water
              samples.

 1.11.6. .   Vol.3-   1030524    DOC ID:  70274  IMAGED
      DATE:   3/15/95            PAGES:     11
AUTHOR(S):                                           ADDRESSEE(S):
      Mark Woodke/Ecology & Environment, Inc.              Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION: Memorandum regarding TDD 10-0410-022, Organic Data Quality Assurance Review of 3 water
              samples.

 1.11.6. .   Vol.3-   1030513    DOC ID:  70260  MAGED
      DATE:   3/16/95            PAGES:     13
AUTHOR(S):                                           ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.              Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION: Memorandum regarding TDD 10-0410-022, Total Petroleum Hydrocarbons Data Quality
              Assurance Review.

 1.11.6. .   Vol.3-   1030103    DOC ID:  42780  IMAGED
      DATE:   3/23/95            PAGES:      1
AUTHOR(S):                                           ADDRESSEE(S):
      William L. Carberry/Ecology & Environment Inc.          Chris Field/EPA
DESCRIPTION: TAT TOO *10-0410-022C.

 1.11.6. .   Vol.3-   1030453    DOC ID:  70182  MAGED
      DATE:   3/24/05            PAGES:     21
AUTHOR(S):                                           ADDRESSEE(S):
      Mark Woodke/Ecology A Environment Inc.              Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION: Memorandum reganJng TDD 10-0410-022, Inorganic Data Quality Assurance Review of 18 water
              samples.

 1.11.6. .   Vol.3-   1030454    DOC ID:  70184  MAGED
      DATE:   3/24/05            PAGES:     41
AUTHOR(S):                                           ADDRESSEE(S):
      Mark Woodke/Ecology & Environment Inc.              Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION: Memorandum regarding TDD 10-0410-021, Organic Data Quality Assurance Review of 19 water
              samples.

 1.11.6. .   Vol.3-   1030455    DOC ID:  70185  IMAGED
      DATE:   3/24/95            PAGES:     10
AUTHOR(S):                                           ADDRESSEE(S):
      Mark Woodke/Ecology & Environment, Inc.              Jeff Fowlow/Ecology & Environment Inc.
DESCRIPTION: Memorandum regarding TDD 10-0412-021. Inorganic Data Quality Assurance Review of 17 water
              samples.

 1.11.6. .   Vol.3-   1030522    DOC ID:  70272  IMAGED
      DATE:   4/26/95            PAGES:      6
AUTHOR(S):                                           ADDRESSEE(S):
      Mark Woodke/Ecology & Environment, Inc.              Jeff Fowlow/Ecology & Environment Inc.
9/23/97                       U.S. Environmental Protection Aaencv. Reoton 10     Paoe       37

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       dOUMSNUB/AJRCO - INTERIM ACTION AOMN. RECORD INDEX
                                               k
 DESCRIPTION: Memorandum regarding TDD 10-0501-005, Inorganic Data Quality Assurance Review of 3 water.
              aamples.

 1.11. 6. .   Vol. 3-   1030523    DOC ID:  70273 WAGED
      DATE:   4/26/95            PAGES:      6
 AUTHOR(Sy.           _                               ADDRESSEE(S):
      Mark Woodke/Ecoiogy A Environment Inc.             Jeff Fowtow/Ecotegy A Environment Inc.
 DESCRIPTION: Memorandum regarding TDD 10-9501-005, Organic Data Quality Assurance Review of 3 water
              samples.

 1.11. 6. .   Vol.3-   1030525    DOC ID:  70275 WAGED
      DATE:   5/8/95            PAGES:      6
 ALTTHOR(S):                                          ADDRESSEE(S):
      Mark Woodke/Ecology A Environment Inc.             Jeff Fowlow/Ecofogy A Environment Inc.
 DESCRIPTION: Memorandum regarding TDD 10-9410-022, Organic Data Quality Assurance Review of 4,water
              samples.

 1.11.6. .   Vol.3-   1030526    DOC ID:  70276 WAGED
      DATE:   5/8/95            PAGES:     10
 AUTHOR(S):                                          ADORESSEE(S):
      Mark Woodke/Ecology A Environment Inc.             Jeff Fowtow/Ecofogy A Environment Inc.
 DESCRIPTION: Memorandum regaiiing TDD 10-9501-005. Inorganic Data QuaWy Assurance Review of 4 water
              samples.

 SUB-HEAD:    1.11. t.  .   Vol. 1  -   OSC Report

 1.11. 9. .   Vol.1-   1030277    DOC ID:   67472 WAGED
      DATE:   8/1/94            PAGES:       3
AUTHOR(S):                                          ADORESSEE(S):
      GET Environmental Services, Inc.                    EPA
 DESCRIPTION: Oversize drawings of Boofrwwbdernoflfonptan.

 1.11.9. .   Vol.1-   1037918    DOCK):   41219 WAGED
      DATE:   4/1/95            PAGES:    325
 AUTHOR(S):                                          ADORESSEE(S):
      Jeff Fowtow/Ecology & Environment Inc.               Chris D. Field/EPA
 DESCRIPTION: Final Removal/OSC Report
0/23/97                       U.S. Environmental Protection Agency, Region 10     Page      38

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(BIAAR) BOOMSNUB/AIRCO - INTERM ACTION AOMIN. RECORD INDEX

HEADING:   2. 0. .  .         REMEDIAL INVESTIGATION/FEASIBILITY STUDY (Rl/FS)

SUB-HEAD:  2. 2.  .  .   Vol.1 •     Rl/FS Scoping

SUB-HEAD:  2. 2. 1. . - Vol. 1 •    Correspondence

 2. 2. 1.  .  Vol.1-   1037985    DOC ID:  41767 IMAGED
      DATE:   6/5/96            PAGES:       2
AUTHOR(S):                                          ADORESSEE(S):
      Deborah J. Yamamoto/EPA                        Jim Merriam/BOC Gates
      Deborah J. Yamamoto/EPA                        MDce Resh/Atrco Gases
DESCRIPTION:  Letter inviting participation in an Rl/FS scoping meeting.

 2. 2. 1.  .  Vol.1 -   1037987    DOC ID:   41768 IMAGED
      DATE:   6/5/96            PAGES:       2
AUTHOR(S):                                          ADDRESSEE(S):
      Deborah J. Yamamoto/EPA                        Glen A. Hayman/EA Engineering. Science &
                                                    Technology
DESCRIPTION:  Letter inviting participation in an Rl/FS scoping meeting.

 2. 2. 1.  .  Vol.1-   1037988    DOC ID:   41770 IMAGED
      DATE:   6/5/96            PAGES:       2
AUTHOR(S):                                          ADDRESSEE(S):
      Deborah J. Yamamoto/EPA                        Clartc County Public Utilities
DESCRIPTION:  Letter inviting participation in an Rl/FS scoping meeting.

 2.2.1.  .  Vol.1-   1037989    DOCK):   41771  MAGED
      DATE:  6/5/96            PAGES:       2
AUTHOR(S):                                          ADORESSEE(S):
      Deborah J. Yamamoto/EPA                        Samuel Giese/Ctaffc County Pubic Works
DESCRIPTION:  Letter inviting psrtfcspetion In an Rl/FS scoping meeting.

 2.2.1.  .  Vol.1-   1037990    DOCK):   41772 MAGED
      DATE:  6/5/96            PAGES:       2
AUTHOR(S):                                          ADORESSEE(S):
      Deborah J. Yamamoto/EPA                        Charles S. PolitykaAJ. S. Department of Interior
      Deborah J. Yamamoto/EPA                        Preston Sleeger/USDOl
DESCRIPTION:  Letter inviting psrtfdpation in an Rl/FS scoping meeting.

 2. 2. 1.  .  Vol. 1 -   1037991    DOC ID:   41773 MAGED
      DATE:   6/5/96            PAGES:       2
AUTHOR(S):                                          ADDRESSEE(S):
      Deborah J. Yamamoto/EPA                        John Ostrowski/City of Vancouver
DESCRIPTION:  Letter inviting participation in an Rl/FS scoping meeting.

 2. 2. 1.  .  Vol.1 -   1037992    DOC ID:  41774 MAGED
      DATE:   6/5/96            PAGES:       2
AUTHOR(S):                                          ADDRESSEE(S):
      Deborah J. Yamamoto/EPA                        Mary Beth Hayes/State of Washington Dept of
                                                    Ecology
DESCRIPTION:  Letter inviting participation in an Rl/FS scoping meeting.

 2.2.1.  .  Vol.1-   1037993    DOC ID:  41776 IMAGED
      DATE:   6/5/96            PAGES:       2
AUTHOR(S):                                          ADDRESSEE(S):
      Deborah  J. Yamamoto/EPA                        U. S. Fsh & Wildlife Service
9/23/97                       U.S. Environmental Protection Aaencv Reaion 10     P«a«

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(BIAAR) BOOMSNUB/AIRCO - INTERIM ACTION AOMIN. RECORD INDEX

DESCRIPTION: Letter Inviting participation in in RI/FS scoping meeting.

 2.2.1.  .   Vol. 1 -   1037994    DOC ID:   41777 WAGED
      DATE:  6/5/96             PAGES:      2
ALTTHOR(S):           -                              ADDRESSEE^):
      Deborah J. Yamamoto/EPA                         Tina Masterson/Washington State Department of
                                                     Ecology
DESCRIPTION: Letter Inviting participation In an RI/FS scoping meeting.

 2. 2. 1.  .   Vol.1-   1037995    DOC ID:   41779 WAGED
      DATE:  6/5/96             PAGES:      2
ALTTHOR(S):                                          ADDRESSEE(S):
      Deborah J. Yamamoto/EPA                         Dan Alexantan/WDOE
DESCRIPTION: Letter Inviting participation In an RI/FS scoping meeting.

 2. 2. 1.  .   Vol.1-   1037996    DOC ID:   41780 IMAGED
      DATE:  6/5/96             PAGES:      2
ALTTHOR(S):                                          ADDRESSEE(S):
      Deborah J. Yamamoto/EPA                         Greg Thomas/Agency for Toxic Substances and
                                                     Disease Registry
DESCRIPTION: Letter inviting partfdpatton In an R¥FS scoping meeting.

 2. 2. 1.  .   Vol.1-   1037997    DOC ID:   41782 IMAGED
      DATE:  6/5/96             PAGES:      2
AUTHOR(S):                                          ADDRESSEE(S):
      Deborah J. Yamamoto/EPA                         John Louderback/Soutnwest Washington Health
                                                     District
DESCRIPTION: Letter inviting participation In an RI/FS scoping meeting.

 2. 2. 1.  .   Vol.1 -   1037998    DOC ID:   41783 MAGED
      DATE:  6/S/96             PAGES:      2
AUTHOR(S):                                          ADORESSEE(S):
      Deborah J. Yamamoto/EPA                         Rodney Swanaon/Ctark County, Washington
DESCRIPTION: Latter InvtJng participation In an RVFS scoping meeting.

 2. 2. 1.  .   Vol.1 -   1037999    DOC ID:   41784 MAGED
      DATE:  6/5/96             PAGES:      2
AUTHOR(S):                                          ADORESSEE(S):
      Deborah J. Yamamoto/EPA                         Terry Reddish/dark County Citizens Hazardous
                                                     Waste Task Force
DESCRIPTION: Letter inviting participation In an RI/FS scoping meeting.

 2. 2. 1.  .   Vol.1 -   1038000    DOC ID:   41785 IMAGED
      DATE:  6/5/96             PAGES:      2
AUTHOR(S):                                          ADDRESSEE(S):
      Deborah J. Yamamoto/EPA                         John FrericMCF Technology Inc.
DESCRIPTION: Letter inviting participation in an RI/FS scoping meeting.

 2. 2. 1.  .   Vol.1-   1030001    DOC ID:   41789 IMAGED
      DATE:  6/5/96             PAGES:      2
AUTHOR(S):                                          ADDRESSEE(S):
      Deborah J. Yamamoto/EPA                         Bob Poss/State of Washington
DESCRIPTION: Letter inviting participation in an RI/FS scoping meeting.

 2. 2. 1.  .   Vol.1 -   1030002    DOC ID:   41790 WAGED
      DATE:  6/5/96             PAGES:      2
ALTTHOR(S):                                          ADDRESSEE(S):
      Deborah J. Yamamoto/EPA                         Douglas Ballou/NE Hazel Dell Neighborhood


9/23/97                        U.S. Environmental Protection Agency. Region 10     Page       40

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(BIAAR) BOOMSNUB/AIRCO - INTERIM ACTION AOMIN. RECORD INDEX

                                                   Association
DESCRIPTION:  Letter Inviting participation In in RI/FS scoping meeting.

SUB-HEAD:  2. 2. 2. .   Vol.1 -    Meetings/Agenda

 2. 2. 2.  .  Vol. 1  -   1030006    DOC ID:  41803  IMAGED
      DATE:  6/17/96            PAGES:      8
AUTHOR(S):                                         ADDRESSEE(S):
      EPA                                          Unknown
DESCRIPTION:  Agenda for RI/FS Scoping meeting.

SUB-HEAD:  2. 3. .  .   Vol.1 -    Sampling and Analysis Plans

 2. 3. .  .   Vol. 1 -   1037350    DOC ID:  35723  IMAGED
      DATE:  4/10795            PAGES:     40
AUTHOR(S):                                         ADDRESSEE(S):
      William Carters/Ecology & Environment              Chris Field/EPA
DESCRIPTION:  QuaOty Assurance Sampang Plan.

 2. 3. .  .   Vol.1 -   1037351    DOC ID:  35724  WAGED
      DATE:  4/11/95            PAGES:      2
AUTHOR(S):                                         ADORESSEE(S):
      Laura Castrilli/EPA                               Unknown
DESCRIPTION:  Sample Analysis request

 2. 3. .  .   Vol. 1 •   1037352    DOC ID:  35725  WAGED
      DATE:  4/11/95            PAGES:      1
AUTHOR(S):                                         ADORESSEE(S):
      Donald Matheny/EPA                             Ann Williamson/EPA
DESCRIPTION:  Review of Sampang Plan.

 2. 3. .  .   Vol. 1 -   1037353    DOC ID:  35726  WAGED
      DATE:  6/14/95            PAGES:      2
ALTrHOR(S):                                         ADORESSEE(S):
      Bernb Zavala/EPA                               Unknown
DESCRIPTION:  Sample Afternoon Cheddbt

 2. 3. .  .   Vol. 1 -   1037354    DOC ID:  35727  WAGED
      DATE:  6/15/95            PAGES:      1
AUTHOR(S):                                         ADDRESSEE(S):
      Patrick Newingham/EPA                           Unknown
DESCRIPTION:  Sample Analysis Request

 2. 3. .  .   Vol. 1 -   1037355    DOC ID:  35728  IMAGED
      DATE:  9/28/95            PAGES:      1
AUTHOR(S):                                         ADDRESSEE(S):
      Patrick Newingham/EPA                           Unknown
DESCRIPTION:  Sample Analysis Request

 2. 3.      Vol.1 -   1037357    DOC ID:  35731  WAGED
      DATE:  10/2/95          .PAGES:      3
AUTHOR(S):                                         ADDRESSEE(S):
      Unknown                                      Unknown
DESCRIPTION:  Sampling Schedule 10/2/95-10/22/95.
9/23/97                      U.S. Environmental Protection Aoencv Peaion 10     Pan*

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(B1AAR) BOOMSNUB/AJRCO - INTERIM ACTION ADMIN. RECORD INDEX

 2. 3.  .  .   Vol.1 -   1037356   DOC ID:  35729  MAGED
      DATE:  10/4/95           PAGES:     49
AUTHOR(S):                                         ADDRESSEE(S):
      Donald Matheny/EPA _                           Ann WUIiamson/EPA
DESCRIPTION:  Review of Quality Assurance Project Plan and recommendation for approval.

SUB-HEAD:  2.  4.  . .   Vol. 1 •    Sampling Data

 2.4.  .  .   Vol.1 -   1030139   DOC ID:  42613  IMAGED
      DATE:                   PAGES:      2
AUTHOR(S):                                         ADDRESSEE(S):
      Unknown                                      Unknown
DESCRIPTION:  Boomsnub Water Treatment System Bl-Weekly CheckRst

 2. 4.  .  .   Vol.1 -   1037368   DOC ID:  35827  IMAGED
      DATE:  5/8/95            PAGES:     47
AITHOR(S).                                         ADDRESSEE(S):
      Gerald H. Dodo/EPA                              Arm WWamson/EPA
DESCRIPTION:  QA data validation of BNA results.

 2. 4.  .  .   Vol. 1 -   1037369   DOC ID:  35828  WAGED
      DATE:  5/15/95           PAGES:     54
AUTHOR(S):                                         ADDRESSEE(S):
      Gerald H. Dodo/EPA                              Ann WUIiamson/EPA
DESCRIPTION:  QA data validation of BNA results.

 2. 4.  .  .   Vol.1 -   1037370   DOC ID:  35829  IMAGED
      DATE:  5/18/95           PAGES:    149
AUTHOR(S):                                         ADDRESSEE(S).
      Gerald H. Dodo/EPA                              Ann WMwnson/EPA
DESCRIPTION:  QA data validation of BNA results.

 2. 4.  .  .   Vol. 1 -   1037371   DOC ID:  35830  MAGED
      DATE:  5/30*5           PAGES:     58
AUTHOR(S):                                         ADDRESSEE(S):
      Martda M. Alforque/EPA                           Ann Wltemson/EPA
DESCRIPTION:  QA data vaHdatfon of BNA results.

 2. 4.  . .   Vol. 1 -   1037372   DOC ID:  35831  MAGED
      DATE:  6/1/95           PAGES:     49
AUTHOR(S):                                         ADORESSEE(S):
      Martda M. Alforque/EPA                           Ann Williamson/EPA
DESCRIPTION:  QA data validation of BNA results.

 2.4.  . .   Vol.1-   1037373   DOC ID  35832  MAGED
      DATE:  6/1/95           PAGES:     34
AUTHOR(S):                                         ADDRESSEE(S):
      Manoa M. Alforque/EPA                           Ann Williamson/EPA
DESCRIPTION.  QA data validation of BNA results.

 2. 4.  . .   Vol. 1  -   1037374   DOC ID:  35833  MAGED
      DATE:  6/2/95           PAGES:     36
AUTHOR(S):                                         ADDRESSEE(S):
      Gerald H. Dodo/EPA                             Ann Williamson/EPA
DESCRIPTION.  QA data validation of pentachlorophenol results.
 9/23/97                       U.S. Environmental Protection Agency. Region 10     Page      42

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 (BIAAR) BOOMSNUB/AIRCO • INTERIM ACTION ADMIN. RECORD INDEX

 24...  Vol.1  -    1037375    DOC ID:  35834  WAGED
      DATE:   6/7/95            PAGES:     05
 AUTHOR(S):                                          ADDRESSEE(S):
      Gerald H. Dodo/EPA                              Ann Williamson/EPA
 DESCRIPTION: QA data validation of VOA results.

 2. 4.  .  .  Vol. 1  -    1037376    DOC ID:  35835  IMAGED
      DATE:   6/7/05            PAGES:     12
 AUTHOR(S):                                          ADDRESSEE(S):
      Marida M. Alforque/EPA                           Ann Williamson/EPA
 DESCRIPTION: QA data validation of metals results.

 2. 4.  .  .  Vol. 1  -    1037420    DOC ID:  40256  IMAGED
      DATE:   6/8/95            PAGES:     18
 AUTHOR(S):                                          ADDRESSEE(S):
      Ginna Grepo-Grove/EPA                           Ann WaiiamsorvEPA
 DESCRIPTION: Data validation report for Volatile Organic and Inorganic analyses.

 2. 4.  .  .  Vol. 1  -    1037377    DOC ID:  35836  WAGED
      DATE:   6/14/95            PAGES:     41
 AUTHOR(S):                                          ADDRESSEE(S):
      Randy Cummings/EPA                            Ann Williamson/EPA
 DESCRIPTION: QA data validation of Pesticides and Per/chlorinated Biphenyls results.

 SUB-HEAD:   2. 4. .  .  Vol.2  -    Sampling Data

 2. 4. .  .  Vol.2-    1037378    DOC ID:  40051  WAGED
      DATE:   6/26/95            PAGES:    166
 AUTHOR(S):                                          ADDRESSEE(S):
      Gerald H. Dodo/EPA                              Ann Williamson/EPA
 DESCRIPTION: QA date valdaflon of VOA results.

 2. 4. .  .  Vol. 2  -    1037370    DOC ID:  40052  WAGED
      DATE:   6/26/95            PAGES:     80
 AUTHOR(S):                                          ADDRESSEE(S):
      Gerald H. Dodo/EPA                              Ann Williamson/EPA
 DESCRIPTION: QA data validation of VOA results.

 2. 4. .  .  Vol. 2  -    1037380    DOC ID:  40053  WAGED
      DATE:   7/3/95            PAGES:     33
 AUTHOR(S):                                          ADDRESSEE(S):
      Randy Cummings/EPA                            Ann Williamson/EPA
 DESCRIPTION: QA data validation of pesticides and polychlorlnated biphenyls.

 2. 4. .  .  Vol.2  -    1037381    DOC ID:  40054  IMAGED
      DATE:   7/26/95            PAGES:     29
AUTHOR(S):                                          ADDRESSEE(S):
      Marida M. AJforque/EPA                           Ann Williamson/EPA
 DESCRIPTION:  QA data validation of metals results.

 2. 4. .  .  Vol.2-    1037382    DOC ID:  40055  IMAGED
      DATE:   7/31/95            PAGES:     23
AUTHOR(S):                                          ADDRESSEE(S):
      Gerald H. Dodo/EPA                              Ann Williamson/EPA
 DESCRIPTION: QA data validation of pesticides and polychlorinated biphenyls results.
9/23/97                       U S. Environmental Protection Aoencv Runinn 10      Pan*      41

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(BIAAR) BOOMSNUB/AIRCO - INTERIM ACTION ADMIN. RECORD INDEX

 2. 4. .  .   Vol.2-   1037383    DOC ID:   40056 WAGED
      DATE:  8/7/95            PAGES:      30
AUTHOR(S):                                          ADDRESSEE(S):
      Gerald H. Dodo/EPA                              Ann WHIiamson/EPA
DESCRIPTION:  QA data validation of BNA results.

 2. 4. .  .   Vol.2-   1037384    DOC ID:   40057 WAGED
      DATE:  8/9/95            PAGES:      25
AUTHOR(S):                                          ADDRESSEE(S):
      Gerald H. Dodo/EPA                              Ann VMJIiamson/EPA
DESCRIPTION:  QA data validation of VOA results.

 2. 4. .  .   Vol.2-   1037385    DOC ID:   40058 WAGED
      DATE:  8/29/95            PAGES:      13
AUTHOR(S):                                          ADDRESSEE(S):
      Gerald H. Dodo/EPA                              Ann Williamson/EPA
DESCRIPTION:  QA data validation of pentachlorophenol results.

 2. 4. .  .   Vol. 2 -   1037386    DOC ID:   40059 WAGED
      DATE:  11/14/95           PAGES:      49
AUTHOR(S):                                          ADDRESSEE(S):
      Mahda M. Afforque/EPA                            Ann Wil8amson/EPA
DESCRIPTION:  QA review of total metals analysis

 2. 4. .  .   Vol. 2 -   1037387    DOC ID:   40060 WAGED
      DATE:  11/15/95           PAGES:      36
AUTHOR(S):                                          ADDRESSEE(S):
      Martcfc M. Alforque/EPA                            Ann WUNamson/EPA
DESCRIPTION:  QA review of total metals analysts.

 2. 4. .  .   Vol. 2 -   1037388    DOC ID:   40061  WAGED
      DATE:  11/15/95           PAGES:      52
ALTTHOR(S):                                          ADORESSEE(S):
      Marida M. Alforque/EPA                            Ann WHRamson/EPA
DESCRIPTION:  QA review of total metals analysis.

 2. 4. .  .   Vol. 2 -   1037403    DOC ID:   40062 WAGED
      DATE:  11/17/95           PAGES:      31
AUTHOR(S):                                          ADDRESSEE(S):
      Ginna Grepo-Grove/EPA                           Ann WHItomson/EPA
DESCRIPTION:  QA review of total metals analysis.

 2.4. .  .   Vol.2-   1037404    DOC ID:   40063 WAGED
      DATE:   11/17/95           PAGES:      29
AUTHOR(S):                                          ADORESSEE(S):
      Ginna Grepo-Grove/EPA                           Ann Williamson/EPA
DESCRIPTION:  QA review of total metals anarysis.

 2. 4. . .   Vol. 2 -   1037405    DOC ID:   40065 WAGED
      DATE:   11/17/95           PAGES:      23
AUTHOR(S):                                          ADDRESSEE(S):
      Ginna Grepo-Grove/EPA                           Deborah J. Yamamoto/EPA
DESCRIPTION:  QA review of total metals analysts.

 2. 4. .    Vol. 2  -   1037506    DOC ID:   40245 IMAGED
      DATE:   11/28/95           PAGES:     200
AUTHOR(S):                                         ADDRESSEE(S):
 9/23/97                       U.S. Environmental Protection Agency, Region 10     'Page

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(BIAAR) BOOMSNUB/A1RCO - INTERIM ACTION AOMIN. RECORD INDEX

      Gerald H. Dodo/EPA                              Ann WUUamson/EPA
DESCRIPTION:  Data validation of VOA results.

 2. 4. . .   Vol.2-   1037507    DOC ID:   40246 IMAGED
      DATE:  12/14/95-          PAGES:     45
AUTHOR(S):                                          ADDRESSEE(S):
      Gerald H. Dodo/EPA                              Ann Williamson/EPA
DESCRIPTION:  Data validation of VOA results.

SUB-HEAD:  2.  4.  .  .   Vol. 3  •    Sampling Data

 2. 4. . .   Vol.3-   1037609    DOC ID:   40506 IMAGED
      DATE:  1/30/96            PAGES:     192
AUTHOR(S):                                          ADDRESSEE(S):
      Gerald H. Dodo/EPA                              Ann Williamson/EPA
DESCRIPTION:  Report of data validation of VOA results.

SUB-HEAD:  2.4.1. .   Vol.1-    Notice of Improper Sample SubmittaJ

 2. 4. 1. .  Vol.1-   1037389    DOC ID:   40069 IMAGED
      DATE:  4/20/95        °   PAGES:      2
AUTHOR(S):                                          ADDRESSEE(S):
      Teresa Booth/EPA                                Ann Williamson/EPA
DESCRIPTION:  Notice of improper sample submittal.

 2.4.1. .  Vol.1-   1037390    DOC ID:   40070 WAGED
      DATE:  4/21/95            PAGES:      2
ALTTHOR(S):                                          ADDRESSEE(S):
      Candy Patterson/EPA                             Katie Adams/ICF Technology Incorporated
DESCRIPTION:  Notice of improper sample submittal.

 2. 4. 1. .  Vol.1-   1037391    DOC ID:   40071 MAGED
      DATE:  6/9/95            PAGES:      3
AUTHOR(S):                                          ADDRESSEE(S):
      William L Carbeny/Ecology & Environment Inc.         Chris D. Field/EPA
DESCRIPTION:  Corrections to Boomsnub sampling event chain of custody forms.

 2. 4. 1. .  Vol.1-   1037392    DOC ID:   40072 MAGED
      DATE:  10/6/95           PAGES:      1
AUTHOR(S):                                          ADDRESSEE(S):
      Karen Phillips/City of Vancouver                     Unknown UnknovmAJnknown
DESCRIPTION:  City of Vancouver  report of Industrial Violation of permitted discharge limits.

 2.4.1. .  Vol.1-   1037393    DOC ID:   40073 IMAGED
      DATE:  10/11/95           PAGES:      1
AUTHOR(S):                                          ADDRESSEE(S):
      Linda Rosa/EPA                                 Ann Williamson/EPA
DESCRIPTION:  Notice of improper sample submittal.

 2.4.1. .  Vol.1-   1037394    DOC ID:   40074 IMAGED
      DATE:  10/13/95           PAGES:      1
AUTHOR(S):                                          ADDRESSEE(S):
      Unda Rosa/EPA                                 Ann Williamson/EPA
DESCRIPTION:  Notice of improper sample submittal.
9/23/97                       U.S. Environmental Protection Aoencv. Realon 10     PBM       45

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(BIAAR) BOOMSNUB/AIRCO - INTERIM ACTION ADMN. RECORD INDEX

 2. 4. 1.  .  Vol. 1  -   1037395   DOC ID:  40076 'WAGED
      DATE:  10/17/95          PAGES:      1
AUTHOR(S):                                         ADORESSEE(S):
      Unda Rosa/EPA                                 Ann Williamson/EPA
DESCRIPTION:  Notice of improper sample submittal.

 2. 4. 1.  .  Vol.1-   1037398   DOC ID:  40077 WAGED
      DATE:  10/18/95          PAGES:      1
AITTHOR(S):                                         ADDRESSEE(S):
                                                   Arm WIIRamson/EPA
DESCRIPTION:  Notice of Improper sample submfflal.

 2.4.1.  .  Vol.1-   1030709   DOC ID:  70863 WAGED
      DATE:  5/8/97            PAGES:      1
AUTHOR(S):                                         ADDRESSEE(S):
      EPA Manchester Lab                             Deborah J. Yamamoto/EPA
DESCRIPTION:  Notice of Improper sample submittal.

 2.4.1.  .  Vol.1-   1030710   DOC ID:  70864 WAGED
      DATE:  5/12/97            PAGES:      1
AUTHOR(S):                                         ADDRESSEE(S):
      EPA Manchester Lab                             Deborah J. Yamamoto/EPA
DESCRIPTION:  Notice of improper sample submittal.

 2. 4. 1.  .  Vol.1-   1030711    DOC ID:  70865 WAGED
      DATE:  5/13/97            PAGES:      2
AUTHOR(S):                                         ADDRESSEE(S):
      EPA Manchester Lab                             Deborah J. Yamamoto/EPA
DESCRIPTION:  Notice of Improper sample submittal.
9/23/97                      U.S. Environmental Protection Agency, Region 10     Page      46

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(B1AAR) BOOMSNUB/A1RCO - INTERIM ACTION AOMIN. RECORD INDEX

HEADING:   3. 0.  .  .        RECORD OF DECISION (ROD)

SUB-HEAD:  3. 1. . .   Vol. 1 •    Record of Decision

 3. 1. . .  Vol.1 -   1030936    DOC ID:  91127
      DATE:  9/29/97            PAGES:    138
AUTHOR(S):                                         ADDRESSEE(S):
      EPA                                          Unknown
DESCRIPTION:  Record of Decision for Interim Remedial Action at Boomsnub/Airco Superfund Site.

SUB-HEAD:  3. 2. . .   Vol.1 -    Proposed Plan for Interim Action

 3. 2. . .  Vol. 1 -   1030822    DOC ID:  71628  WAGED
      DATE:  7/28/97            PAGES:     11
AUTHOR(S):                                         ADDRESSEE(S):
      EPA                                          Unknown
DESCRIPTION:  Proposed Plan for Interim Action at Boomsnub/Airco Superfund Stte.

SUB-HEAD:  3. 3. . .   Vol. 1 -    Memos Relating to ROD

 3. 3. . .  Vol. 1 -   1030926    DOC ID:  72708  IMAGED
      DATE:  9/19/97            PAGES:      7
AUTHOR(S):                                         ADORESSEE(S):
      Deborah J. Yamamoto/EPA                        Site Fie/EPA
DESCRIPTION:  Memo to file regarding figures for inclusion in Interim Action ROD.

 3. 3. . .  Vol. 1 -   1030925    DOC ID:  72709  IMAGED
      DATE:  9/19/97            PAGES:      1
AUTHOR(S):                                         AOORESSEE(S):
      Deborah J. Yamamoto/EPA                        SB* Re/EPA
DESCRIPTION:  Memo to (Be regarding documentation of conversation win Dan Alexanian of Washington Dept of
              Ecology on geology/hvdrogeology in the vfcWly of Boomsnub.
10/2/87                       U.S. Environmental Protection Agency, Region 10     Pagt      47

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(B1AAR) BOOMSNUB/AIRCO - INTERIM ACTION AOMIN. RECORD INDEX

HEADING:   4.  0.  .  .        AIRCO/(BOC GASES) SITE EVALUATION

SUB-HEAD:  4. 1. . .  Vol.1 -    Correspondence

 4.  1. . .  Vol.1  •    1030128    DOC ID:   42591  IMAGED
      DATE:   11/2/93            PAGES:      4
AUTHOR(S):                                           ADDRESSEE(S):
      Una Masterson/Washington State Department of Ecology  James Merriam/Airco Gases
DESCRIPTION:  Notice of potential lability for the release of Hazardous Substances under the Model Tories Control
              Act

 4.  1. . .  Vol.1  -    1030129    DOC ID:   42592  IMAGED
      DATE:   12/20/93           PAGES:      16
AUTHOR(S):                                           ADDRESSEE(S):
      Megan White/State of Washington                    James Merriam/Airco Gases
DESCRIPTION:  Cover letter and Enforcement Order/Remedial Action Order * DE93TC-S335 for the remediation of
              the VOC contamination.

 4.  1. . .  Vol.1  -    1037104    DOC ID:   35258  IMAGED
      DATE:   2/1/94             PAGES:      63
AUTHOR(S):                                           ADDRESSEE(S):
      EA Engineering, Science, & Technology               Airco Gases
DESCRIPTION:  Work Plan for Aquifer Ahr Sparging/Soil Vapor Extraction Treatability Study for Airco Gases.

 4.  1. . .  Vol.1-    1037105    DOC ID:   35259  IMAGED
      DATE:   3/7/94             PAGES:      3
AUTHOR(S):                                           ADDRESSEE(S):
      Chris V. Pflre/Pacffic Groundwater Group               Tina Masterson/Washington State Department of
                                                     Ecology.
DESCRIPTION:  Letter regarding review and comments of Draft Work Plan for Sofl Vapor Survey.

 4.  1. . .  VoM  .    1037108    DOC ID:   35260  WAGED
      DATE:   3/15/94            PAGES:      5
AlfmOR(S):                                           ADDRESSEE(S):
      Glenn A. Hayman/EA Engineering, Science, &           Tina Masterson/Washington State Department of
      Technology                                      Ecology
DESCRIPTION:  Letter regarding final work plan for South Dry Well Sediment Remedial Action.

 4.  1.  .  .  Vol.1  -    1037107    DOC ID:   35261  IMAGED
      DATE:   3/16/94            PAGES:       1
AUTHOR(S):                                           ADDRESSEE(S):
      Tina Masterson/WDOE                             James Merriam/Airco Gases
DESCRIPTION:  Letter regarding final work plan approval.

 4.  1.  .  .  Vol.1  -   1037109    DOC ID:   35263 IMAGED
      DATE:   3/22/94            PAGES:       5
AUTHOR(S):                                           ADDRESSEE(S):
      Chris V. Pltre/Padfte Groundwater Group              Tina Masterson/Washington State Department of
                                                     Ecology
DESCRIPTION:  Letter regarding review of Work Plan for Aquifer Air Sparging/Soil Vapor Extraction Treatability
               Study for Airco.

 4.  1.  .  .  Vol.1  -   1037110    DOC ID:   35264 IMAGED
      DATE:   4/6/94             PAGES:       7
AUTHOR(S):                                          ADDRESSEE(S):
      Ttna Masterson/WDOE                             James Merriam/Airco Gases
 10/2/97                       U.S. Environmental Protection Agency. Region 10     Page      48

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(BIAAR) BOOMSNUB/AJRCO - INTERIM ACTION AOMIN. RECORD INDEX

DESCRIPTION:  Letter regarding review and comments on Work Plan for Aquifer Air Sparging/Sou Vapor Extraction
               Treatability Study for Airco.

 4. 1.  .  .  Vol.1 -   1037111    DOC ID:  35265  IMAGED
       DATE:   4/6/94  ~          PAGES:      2
AUTHOR(S):                                           ADDRESSEE(S):
       Tina Masterson/WDOE                             James Merriam/Alrco Gases
DESCRIPTION:  Letter regarding review and approval of the final plan for the Boomsnub VOC Removal System.

 4. 1.  .  .  Vol.1 -   1037113    DOC ID:  35267  MAGED
       DATE:   4/21/94            PAGES:      4
AUTHOR(S):                                           ADDRESSEE(S):
       Tina Masterson/WDOE                             Jim Merriam/Alrco Gases
DESCRIPTION:  Review and comments on the Draft Work Plan for Installation and Sampling of Five Downgradient
               Monitoring Wells, Airco Gases.

 4. 1,  .  .  Vol.1 -   1037112    DOC ID:  35266  IMAGED
       DATE:   4/26/94            PAGES:      9
ALJTHOR(S):                                           ADDRESSEE(S):
       Glenn A. Hayman/EA Engineering, Science, &           Tina Masterson/Washington State Department of
       Technology                                      Ecology
DESCRIPTION:  Response to Ecology's comments on the work plan for Aquifer Air Sparging/Soil Vapor Extraction
               Treatability Study.

 4. 1.  .  .  Vol.1 -   1037114    DOC ID:  35268  IMAGED
       DATE:   5/6/94             PAGES:     12
ALfTHOR(S):                                           ADDRESSEE(S):
       Glenn Hayman/EA Engineering, Science, & Technology    Tina Masterson/Washington State Department of
                                                      Ecology
DESCRIPTION:  Analytical narrative and lab data sheets for samples collected from south dry well at Airco.

 4. 1.  .  .  Vol.1 •   1037115    DOC ID:  35269  WAGED
       DATE:   5/12/94            PAGES:      8
ALTTHOR(S):                                           ADDRESSEE(S):
       Glenn Hayman/EA Engineering, Science, & Technology    Tina Masterson/Washington State Department of
                                                      Ecology
DESCRIPTION:  Submittal of Revised Final Work Plan for Soil Vapor Survey at Airco.

 4. 1.  .  .  Vol. 1 -   1037116    DOC ID:  35270  IMAGED
       DATE:   5/17/94            PAGES:      2
AUTHOR(S):                                           ADDRESSEE(S):
      Tina Masterson/WDOE                             James Merriam/Alrco Gases
DESCRIPTION:  Letter regarding Airco's response to the work plan for Aquifer Air Sparging/Soil Vapor Extraction
               Treatability Study.

 4. 1.  .  .  Vol.1 -   1037117    DOC ID:  35271  MAGED
       DATE:   5/19/94            PAGES:      9
AUTHOR(S):                                           ADDRESSEE(S):
       Glenn A. Hayman/EA Engineering, Science, &           Tina Masterson/Washington State Department of
       Technology                                      Ecology
DESCRIPTION:  Revised work plan for Installation and Sampling of Five Downgradient Monitoring Wells.

 4. 1.  .  .  Vol. 1 -   1037118    DOC ID:  35272  IMAGED
       DATE:   5/20/94            PAGES:      1
AUTHOR(S):                                           ADDRESSEE(S):
       Tina Masterson/WDOE                             Jim Merriam/Airco Gases
9/23/07                        U.S. Environmental Protection Aaencv. ReataniO     Pan*

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(BIAAR) BOOMSNUB/AIRCO - INTERIM ACTION AOMIN. RECORD INDEX

DESCRIPTION:  Latter regarding Ecology's approval of Final Work Plan for Installation and Sampling of Five
               Downgradtent Monitoring Wells.

 4. 1.  .  .  Vol.1-   1037121    DOC ID:   3527S MAGED
       DATE:   8/14/94  -        PAGES:       2
AUTHOR(S):                                          ADDRESSEE(S):
       Tina Mastorson/WDOE                            Jim MerrlanVAirco Oases
DESCRIPTION:  Letter approving Final Work Plan, Revision fl. for the Sol Vapor Survey.

 4. 1.  .  .  Vol.1-   1037122    DOC ID:   35276 MAGED
       DATE:   6/28/94            PAGES:       5
AUTHOR(S):                                          ADDRESSEE(S):
       Glen A. Hayman/EA Engineering, Science, & Technology  Tina Masterson/Washington State Department of
                                                     Ecology
DESCRIPTION:  Response Letter to comments on approved soil vapor work plan.

 4. 1.  .  .  Vol.1 -   1037123    DOC ID:   35277 MAGED
       DATE;   8/17/94            PAGES:       8
AUTHOR^):                                           ADORESSEE(S):
       Glen A. Hayman/EA Engineering, Science, & Technology  Tina Masterson/Washington State Department of
                                                     Ecology
DESCRIPTION:  Work Plan for Additional Subsurface Soil Sampling at BOC Gases.

 4. 1.  .  .  Vol.1 -   1037124    DOC ID:  35278 MAGED
       DATE:   8/17/94            PAGES:       2
AUTHOR(S):                                           ADDRESSEE(S):
       Mfchael S. Resh/Airco Gases                        Tina Masterson/Washington State Department of
                                                     Ecology
DESCRIPTION:  Cover letter regarding Work Plan for addttonal subsurface soft sampling.

 4. 1.  .  .  Vol.1 -   1037125    DOC ID:  35279 MAGED
       DATE:   8/29/94            PAGES:       8
AUTHOR(S):                                           ADORESSEE(S):
       Glenn A. Hayman/EA Engineering, Science, &           Una Masterson/Washington State Department of
       Technology                                     Ecology
DESCRIPTION:  Phial Work Plan for Additional Subsurface Sol Sampling.

 4. 1.  .  .  Vol. 1 -   1037126    DOC ID:  35280 MAGED
       DATE:   8/30/94            PAGES:       1
AUTHOR(S):                                           ADDRESSEE(S):
       Tina Masterson/WDOE                             James Merriam/BOC Gases
DESCRIPTION:  Letter regarding WDOE*s approval of Final Work Plan for Additional Subsurface Sod Sampling.

 4. 1.  .  .  Vol.1 -   1037129    DOC ID:  35283 IMAGED
       DATE:   1/9/95             PAGES:       1
AUTHOR(S):                                           ADDRESSEE(S):
       Glenn A. Hayman/EA Engineering, Science, &           Tina Masterson/Washington State Department of
       Technology                                     Ecology
DESCRIPTION:  Letter regarding Phase IV Groundwater Investigation Final Report

 4. 1.  .  .  Vol. 1 -   1037130    DOC ID:   35284 MAGED
       DATE:   2/3/95             PAGES:      38
AUTHOR(S):                                           ADDRESS6E(S):
       Glenn A. Hayman/EA Engineering, Sdence, &           Scott Inloes/Southwest Air Pollution Control
       Technology                                     Authority
DESCRIPTION:  Summary Report. 9/94 -12/94, Boorranub VOC Treatment System.
9/23/97                        U.S. Environmental Protection Agency, Region 10      Page      50

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(BIAAR) BOOMSNUB/AIRCO - INTERIM ACTION AOMIN. RECORD INDEX

 4. 1. . .   Vol.1-    1030213    DOC ID:  66054  WAGED
      DATE:   3/16/95            PAGES:      5
AUTHOR(S):           _                              ADDRESSEE(S):
      Glenn A. Hayman/EA Engineering, Science, &           John FeWer/Ecotogy & Environment Inc.
      Technology
DESCRIPTION: Survey locations for BOC wells and site plan showing well locations.

 4. 1. . .   Vol.1  -    1037131    DOC ID:  35285  IMAGED
      DATE:   5/12/95            PAGES:      3
AUTHOR(S):                                           ADDRESSEE(S):
      Glenn A. Hayman/EA Engineering, Science, &           Scott Inloes/Southwest Air Pollution Control
      Technology                                      Authority
DESCRIPTION: Comments on Order of Authorization to Operate, Boomsnub VOC Treatment System.

 4. 1. . .   Vol.1  -    1037132    DOC ID:  35286  IMAGED
      DATE:   7/31/95            PAGES:      1
AUTHOR(S):                                           ADDRESSEE(S):
      Glenn A. Hayman/EA Engineering, Science, &           Tina Masterson/Washington State Department of
      Technology                                      Ecology
DESCRIPTION: Cover letter for Final Phase IV Soil Vapor Survey Report

 4. 1.  . .   Vol.1  -    1037133    DOC ID:  35287  WAGED
      DATE:   8/3/95            PAGES:      1
AUTHOR(S):                                           ADDRESSEE(S):
      Glenn A. Hayman/EA Engineering, Science. &           Tina Masterson/Washington State Department of
      Technology                                      Ecology
DESCRIPTION: Cover letter for Fmal Phase IV Subsurface SoB Investigation Report, Vol. I.

 4. 1.  . .   Vol.1  -    1037135    DOC ID:  35289  IMAGED
      DATE:   8/31/95            PAGES:      2
AUTHOR(S):                                          ADORESSEE(S):
      TtaMasterson/WDOE                             James Merriam/BOC Gases
DESCRIPTION: Letter advising that reporting requirement* stated hi Enforcement Order DE 93TC-S335 have been
              satisfied.

 4.  1.  . .  Vol.1  -    1030790   DOC ID:  71266  WAGED
      DATE:   10/20/95          PAGES:      1
AUTHOR(S):                                          ADDRESSEE(S):
      Glenn A. Hayman/EA Engineering, Science, &           Mfchael S. Resh/BOC Gases
      Technology
DESCRIPTION: Cover letter for Data Summary Report for BOC Gases.

SUB-HEAD:   4. 2.  .  .   Vol. 1  -    Reports - Pre-EE/CA

 4. 2.  . .  Vol. 1 -    1037080    DOC ID:   35234 WAGED
       DATE:   4/1/92             PAGES:     109
AUTHOR(S):                                          ADDRESSEE(S):
       EA Engineering, Science & Technology               Airco Industrial Gases
 DESCRIPTION: Report of Investigation Airco Industrial Gases.

 4. 2.  .  .  Vol. 1 -    1037081    DOC ID:  35235  WAGED
       DATE:   10/1/92           PAGES:     198
 AUTHOR(S):                                          ADDRESSEE(S):
       EA Engineering, Science & Technology               Airco Industrial Gases
 DESCRIPTION: Phase  II Investigation Airco Industrial Gases.
                              U.S. Environmental Protection Ananrv Raninn 10     Dana

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(BIAAR) BOOMSNUB/AJRCO - INTERIM ACTION ADMN. RECORD INDEX

 4.2...  Vol. 1-    1037083   DOC ID:  35237  MAGED
      DATE:   7/1/93            PAGES:    300   .
ALfTHOR(S):                                          ADORESSEE(S):
      EA Engineering, Science & Technology               Alrco Gases
DESCRIPTION: Phase III Soil and Groundwater Investigation, AJrco Gases.

 4.2...  Vol.1-    1037082   DOC ID:  35238  WAGED
      DATE:   8/26/93           PAGES:      8
AUTHOR(S):                                          ADDRESSEE(S):
      Tina Masterson/WDOE                            MBce Resh/Alrco Gases
DESCRIPTION: Letter regarding comments and overall concerns regarding Phase III report

SUB-HEAD:   4. 2. . .  Vol. 2 -    Reports - Pre-EE/CA

 4. 2. .  .  Vol. 2 -    1037084   DOC ID:  35238  MAGED
      DATE:   3/25/94           PAGES:     33
AUTHOR(S):                                          ADDRESSEE(S):
      Glen A, Hayman/EA Engineering, Science & Technology  Tina Masterson/Washlngton State Department of
                                                    Ecology
DESCRIPTION: Report Plan for VOC Removal System Under Enforcement Order.

 4.2...  Vol.2-    1037085   DOC ID:  35239  MAGED
      DATE:   8/1/94            PAGES:     23
AUTHOR(S):                                          ADDRESSEE(S):
      EA Engineering. Science & Technology               BOC Gases
DESCRIPTION: Report Groundwater Monitoring Results May 1994. Vol. I of IV. Letter, Tables & Figures.

 4. 2. .  .  Vol. 2 -    1037086   DOC ID:  35240  MAGED
      DATE:   8/1/94            PAGES:    157
AIFTHOR(S):                                          ADORESSEE(S):
      EA Engineering. Science & Technology               BOC Gases
DESCRIPTION: Report Groundwater Monitoring Results May 1994. Vol. H of IV. Laboratory Reports.

 4. 2. .  .  Vol.2-    1037087   DOC ID:  35241  MAGED
      DATE:   8/1/94            PAGES:    347
AUTHOR(S):                                          ADORESSEE(S):
      EA Engineering, Science & Technology               BOC Gases
DESCRIPTION: Report Groundwater Monitoring Resulte May 1994, Vol. Ill of tV, Laboratory Reports.

SUB-HEAD:   4. 2.  . .  Vol. 3 -    Reports - Pre-EE/CA

 4. 2.  .  .  Vol.3-    1037088   DOC ID:  35242  IMAGED
      DATE:   8/1/94            PAGES:    365
Aim-IOR(S):                                          ADDRESSEE(S):
      EA Engineering, Science & Technology               BOC Gases
DESCRIPTION:  Report Groundwater Monitoring Results May 1994, Vol. IV of IV, Laboratory Reports.

SUB-HEAD:   4.  2.  .  .   Vol. 4-    Reports - Pre-EE/CA

 4. 2.  .  .  Vol.4 -    1037091    DOC ID:   35245  MAGED
      DATE:   12/1/94            PAGES:    113
AUTHOR(S):                                          ADDRESSEE(S):
      EA Engineering, Science, & Technology               BOC Gases
DESCRIPTION:  Report: Phase IV Groundwater Investigation Final Report Vol. I
 9/23/97                       U.S. Environmental Protection Agency, Region 10     Page      52

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(BIAAR) BOOMSNUB/AJRCO - INTERIM ACTION ADMIN. RECORD INDEX

 4. 2.  . .  Vol.4-    1037092    DOC ID:  35246  IMAGED
      DATE:   12/1/94           PAGES:    354
AUTHOR(S):                                         ADDRESSEE(S):
      EA Engineering. Science, & Technology               BOG Gases
DESCRIPTION: ReportrPhase IV Groundwater Investigation Final Report; Vol. II, Appendix B.

SUB-HEAD:   4. 2.  . .  Vol.5-    Report* - Pre-EE/CA

 4. 2.  . .   Vol.5-    1037093    DOC ID:  35247  IMAGED
      DATE:   12/1/94           PAGES:    241
AUTHOR(S):                                         ADDRESSEE(S):
      EA Engineering, Science, & Technology               BOC Gases
DESCRIPTION: Report Phase IV Groundwater Investigation Final Report; Vol. Ill, Appendix B, confd.

 4. 2.  . .   Vol. 5 -    1037094    DOC ID:  35248  IMAGED
      DATE:   7/1/95            PAGES:    116
ALTTHOR(S):                                         ADDRESSEE(S):
      EA Engineering, Science, & Technology               BOC Gases
DESCRIPTION: Report Phase IV Soil Vapor Survey Report.

 4. 2. . .   Vol. 5 -    1030712    DOC ID:  70897  IMAGED
      DATE:   7/1/95            PAGES:     18
AUTHOR(S):                                         ADDRESSEE(S):
      EA Engineering, Science, and Technology              BOC Gases
DESCRIPTION: Report Phase (V Soulh'Dry Well Remedial Action. Vol. I.

 4.2...   Vol.5-    1037095    DOC ID:  35249  IMAGED
      DATE:   8/1/95            PAGES:     57
AUTHOR(S):                                         ADORESSEE(S):
      EA Engineering, Science, & Technology               BOC Gases
DESCRIPTION: Report: Phase IV Subsurface Sofl Investigation Report, Vol. I.

SUB-HEAD:   4. 2.  . .  Vol. 6 -    Reports - Pre-€E/CA

 4. 2. . .   Vol.6-    1037096    DOC ID:  35250  MAGED
      DATE:   10/1/95           PAGES:     105
AUTHOR(S):                                         ADDRESSEE(S):
      EA Engineering, Science, & Technology               BOC Gases
DESCRIPTION: Final Boomsnub Air Stripper Operation and Maintenance Plan.

 4. 2. . .   Vol.6-    1030789    DOC ID:  71265  MAGED
      DATE:   10/1/95           PAGES:     128
ALJTHOR(S):                                         ADDRESSEE(S):
      EA Engineering, Science, and Technology              BOC Gases
DESCRIPTION: Environmental Investigation Data Report.

 4.2. . .   Vol.6-    1030019    DOC ID:  41818  IMAGED
      DATE:   3/5/96            PAGES:    130
AUTHOR(S):                                         ADDRESSEE(S):
      Glen A. Hayman/EA Engineering, Science & Technology   Scott Inloes/Soutnwest Air Pollution Control
                                                    Authority
DESCRIPTION: Report Boomsnub VOC Treatment System, 1995 Summary Report.

 4. 2. . .   Vol.6-    1030020    DOC ID:  41819  IMAGED
      DATE:   5/16/96            PAGES:     40
AUTHOR(S):                                          ADDRESSEE(S):
      Glen A. Hayman/EA Engineering, Science & Technology   Mike Resn/Airco Gases
9/23/97                       U.S. Environmental Protection Aaenrv R«n«       «;•»

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(BIAAR) BOOMSNUB/AJRCO - INTERIM ACTION ADMIN. RECORD INDEX

DESCRIPTION:  Summary of April-May 1995 Groundwttor Mentoring Data, BOC Gases.

 4. 2. . .   Vol.6-    1030242    DOC ID:   67236 WAGED
      DATE:   10/17/96          PAGES:       4
AUTHORfS):            -                              ADDRESSEE(S):
      Glenn A. Haymtn/EA Engineering, Science, &           Mfchael S. Resh/Airco Gases
      Technology
DESCRIPTION:  Summary of Boomsnub air stripper temporary leak detection and containment measures
              construction oversight.
9/23/97                       U.S. Environmental Protection Agency, Region 10     Page       54

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(BIAAR) BOOMSNUB/A1RCO - INTERIM ACTION AOMIN. RECORD INDEX

HEADING:   6. 0. . .        REMEDIAL ACTION

SUB-HEAD:  I. 1.  .  .   Vol. 1 -     Correspondence

 6.  1. . .  Vol.1-   T037406    DOC ID:  40249 IMAGED
      DATE:  7/1/94            PAGES:      2
AUTHOR(S):                                          ADDRESSEE(S):
      Thor Cutler/EPA                                 Bub Loiselle/EPA
DESCRIPTION:  Requirements for city discharge permit

 6.  1. . .  Vol. 1 -   1037407    DOC ID:  40249 IMAGED
      DATE:  7/13794            PAGES:      3
AUTHOR(S):                                          ADDRESSEE(S):
      Thor Cutler/EPA                                 Bub Loiselle/EPA
DESCRIPTION:  Follow up letter to Thomas Boyer at City of Vancouver.

 6.  1. . .  Vol.1 -   1037408    DOC ID:  40250 IMAGED
      DATE:  7/20/94            PAGES:       2
AUTHOR(S):                                          ADDRESSEE(S):
      Bub Loiselle/EPA                                 Thomas Boyer/City of Vancouver
DESCRIPTION:  Follow up letter to Thomas Boyer at City of Vancouver.

 6.  1. . .  Vol.1 -   1037409    DOC ID:  40251  IMAGED
      DATE:  8/16/94            PAGES:       4
AUTHOR(S):                                          ADDRESSEE(S):
      Bub Loiselle/EPA                                 Thomas Boyer/City of Vancouver
DESCRIPTION:  Letter requesting waiver of city's development charge.

 6.  1. . .  Vol.1 -   1037410    DOC ID:  40252 WAGED
      DATE:  9/2/94            PAGES:       2
AUTHOR(S):                                          ADDRESSEE(S):
      Bub Loiselle/EPA                                 Victor Ehrlich/Cfty of Vancouver
DESCRIPTION:  Letter requesting waiver of city's system charge and user fee.

 6.  1. . .  Vol.1.   1037411    DOC ID:  40253 WAGED
      DATE:  8/25/95            PAGES:       1
AUTHOR(S):                                          ADDRESSEE(S):
      Kenneth V. Jennings/ICF Kaiser Engineers Group, Inc.    Ann Williamson/EPA
DESCRIPTION:  Enclosure letter for extended data packages.

 6.  1. . .  Vol.1 -   1037932    DOC ID:  41558 WAGED
      DATE:  3/18/96            PAGES:       1
AUTHOR(S):                                          ADDRESSEE(S):
      Kenneth V. Jennings/ICF Kaiser Engineers Group, Inc.    Ann WilliamsonflEPA
DESCRIPTION:  Data package cover letter.

 6.  1. . .  Vol.1 -   1030295    DOC ID:  68009 WAGED
      DATE:  8/7/96            PAGES:      4
AUTHOR(S):                                          ADDRESSEE(S):
      Bemie Zavala/EPA                                Deborah J. Yamamoto/EPA
DESCRIPTION:  Memorandum regarding ground water flow direction for Boomsnub/BOC tested In March and
              October 1995 and May 1996.

 6.  1. . .  Vol. 1 -   1^30296    DOC ID:  68010 IMAGED
      DATE:  8/30/96            PAGES:      2
AUTHOR(S):                                          ADDRESSEE(S):
      John P. FrericMCF Technology Inc.                  Bemie Zavala/EPA
9/23/97                       U.S. Environmental Protection Aoencv Reolon 10     Pan-

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 (BIAAR) BOOMSNUB/AiRCO - INTERIM ACTION AOMIN. RECORD INDEX

 DESCRIPTION: Memo regarding Installation of wells at Boomsnub.

  6. 1.  .  .  Vol. 1 -   1030198   DOC ID:  66031  WAGED
       DATE   9/17/96           PAGES:      2
 ALTTHOR(S):          -                             ADDRESSEE(S):
       Deborah J. Yamamoto/EPA                        Jufie Rose/Bonnevftle Power Administration
. DESCRIPTION: Letter regarding installation of monitoring weds on BPA property.

  6. 1.  .  .  Vol.1 -   1030199   DOC ID:  66033  IMAGED
       DATE:   9/17/96           PAGES:      2
 AUTHOR(S):                                         ADDRESSEE(S):
       Deborah J. Yamamoto/EPA                        Lowell Weiss/Clark County Public Works
 DESCRIPTION: Letter regarding installation of monitoring wells near Clark County's road right-of-way.

  6. 1.  .  .  Vol.1 -   1030675   DOC ID:  70677  WAGED
       DATE:   3/7/97            PAGES:      3
 AUTHOR(S):                                         ADDRESSEE(S):
       John P. Frerich/lCF Technology Inc.                  Anne Dafley/EPA
 DESCRIPTION: Corrective Action Memorandum for FMd Sampling Activities.

  6. 1.  .  .  Vol.1 -   1030876   DOC ID:  70678  WAGED
       DATE:   3/27/97           PAGES:      2
 AITTUOR(S):                                         ADDRESSEE(S):
       John P. Frerich/lCF Technology Inc.                  Anne Dailey/EPA
 DESCRIPTION: Corrective Actions for the O & M of the Groundwater Treatment System.

  6. 1.  .  .  Vol.1 -   1030671   DOC ID:  70674  WAGED
       DATE:   4/15/97           PAGES:      2
 AUTHOR(S):                                         ADDRESSEE(S):
       John P. Frerich/lCF Technology Inc.                  Deborah J. Yamamoto/EPA
 DESCRIPTION: Letter regardtag audt of operations and maintenance activities.

  6. 1.  .  .  Vol.1 -   1030674   DOC ID:  70676  WAGED
       DATE:   4/22/97           PAGES:      1
 ALTTHOR(S):                                         ADDRESSEE(S):
       Anne Daley/EPA                                Deborah J. Yamamoto/EPA
 DESCRIPTION: Memo regarding conversation with John Frerich..

  6. 1.  .  .  Vol.1 -   1030700   DOC ID:  70779  WAGED
       DATE:  4/30/97           PAGES:      1
 AUTHOR(S):                                         ADDRESSEE(S):
       Melody Walker/EPA                             Anne Dafley/EPA
 DESCRIPTION: EPA Region 10 RAP Report

  6. 1.  .  .  Vol.  1 -   1030673   DOC ID:  70675  IMAGED
       DATE:  5/5/97            PAGES:       1
 AUTHOR(S):                                         ADDRESSEE(S):
       Anne DaRey/EPA                                Deborah J. Yamamoto/EPA
 DESCRIPTION:  Memo regarding conversation wtth John Frerich.

  6. 1. .  .   Vol.1  -   1030755    DOC ID:   71083 IMAGED
       DATE:  5/29/97            PAGES:       9
 AUTHOR(S):                                         ADDRESSEE(S):
       Anne Dafley/EPA                                Polly M. QuIck/lCF Technology
 DESCRIPTION:  Technical Direction Memorandum.
 9/23/97                       U.S. Environmental Protection Agency, Region 10     Page       56

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(BIAAR) BOOMSNUB/AIRCO - INTERIM ACTION ADMN. RECORD INDEX

 6.  1. . .   Vol.1  -    1030601    DOC ID:  71296  WAGED
      DATE:   6/27/97            PAGES:      5
AUTHOR(S):                                           ADDRESSEE(S):
      John P. FrericMCF Technology Inc.                   Deborah J. Yamamoto/EPA
DESCRIPTION: Technical memorandum evaluating the estimated pumping duration to obtain groundwater cleanup
              levels for chromium.

 6.  1. . .   Vol.1  -    1030802    DOC ID:  71297  IMAGED
      DATE:   6/27/97            PAGES:      5
AUTHOR(S):                                           ADDRESSEE(S):
      John P. Frerich/lCF Technology inc.                   Deborah J. Yamamoto/EPA
DESCRIPTION: Cost estimate for expanding the extraction system and repairing or replacing system components.

 6.  1. . .   Vol.1-    1030804    DOC ID:  71310  IMAGED
      DATE:   7/1/97            PAGES:      2
AUTHOR(S):                                           ADDRESSEE(S):
      Deborah J. Yamamoto/EPA                         Site File/EPA
DESCRIPTION: Memorandum regarding cost estimate for Operation and Maintenance and Improvements to the
              Boomsnub/Alrco Extraction/Treatment System.

SUB-HEAD:   6. 2. .  .  Vol. 1 -    Sampling Data

 6.  2. . .   Vol.1-    1037419    DOC ID:  40254  IMAGED
      DATE:   5/26/95            PAGES:     79
AUTHOR(S):                                           ADDRESSEE(S):
      Andrew J. Riddell/Sound Analytical Services             Peter Battuello/ICF Kaiser Engineers
DESCRIPTION: Sample analysis package.

 6.  2. . .   Vol.1  -    1037418    DOC ID:  40255  IMAGED
      DATE:   6/6/95            PAGES:    422
AUTHOR(S):                                           ADORESSEE(S):
      Wendy MCLeod/OnStte Environmental, Inc.             Kenneth V. Jennings/JCF Kaiser Engineers Group,
                                                     Inc.
DESCRIPTION: Sample analysis results.

SUB-HEAD:   6. 2. .  .  Vol. 2 •    Sampling Data

 6.  2. . .   Vol.2-    1037509    DOC ID:  40259  IMAGED
      DATE:   6/16/95            PAGES:    202
AlfTHOR(S):                                           ADDRESSEE(S):
      Wendy MCLeod/OnStta Environmental. Inc.             Kenneth V. Jennings/ICF Kaiser Engineers Group,
                                                     Inc.
DESCRIPTION: Sample analysis results.

 6.  2. . .   Vol.2-    1037508    DOC ID:  40261  IMAGED
      DATE:   6/29/95            PAGES:    361
ALTTHOR(S):                                           ADORESSEE(S):
      Wendy MCLeod/OnSfte Environmental, Inc.             Kenneth V. Jennings/ICF Kaiser Engineers Group.
                                                     Inc.
DESCRIPTION: Sample Analysis results.

 6.2. . .   Vol.2-    1037510    DOC ID:  40262  IMAGED
      DATE:   7/19/95            PAGES:    218
AUTHOR(S):                                           ADDRESSEE(S):
      Wendy MCleod/OnSite Environmental, Inc.             Kenneth V. Jennings/ICF Kaiser Engineers Group.
                                                     Inc.
9/23/87                       U.S. Environmental Protection Aaencv. Reaton 10     Pao«       R7

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(BIAAR) BOOMSNUB/AIRCO - INTERIM ACTION ADMN. RECORD INDEX

DESCRIPTION:  Sample analysts results.

SUB-HEAD:  I. 2.  .  .  Vol.3 -    Sampling Data

 6. 2. . .   Vol.3-    1037513    DOC ID:  40274 IMAGED
      DATE:   8/7/95            PAGES:    413
AUTHOR(S):                                          ADDRESSEE(S):
      Unknown                                      Kenneth V. Jennings/ICF Kaiser Engineers Group,
                                                    Inc.
DESCRIPTION:  Sample analysis results.

 8. 2. . .   Vol. 3 -    1037514    DOC ID:  40275 MAGED
      DATE:   8/24/95            PAGES:    232
AUTHOR(S):                                          ADDRESSEE(S):
      Unknown                                      Kenneth V. Jennings/ICF Kaiser Engineers Group.
                                                    Inc.
DESCRIPTION:  Sample analysis results.

SUB-HEAD:  €. 2.  .  .  Vol. 4-    Sampling Data

 6. 2. . .   Vol. 4 -    1030632    DOC ID:  70607 MAGED
      DATE:   9/14/95            PAGES:    423
AUTHOR(S):                                          ADDRESSEE(S):
      Wendy MCLeod/OnSJte Environmental, Inc.             Kenneth V. Jennings/ICF Kaiser Engineers Group,
                                                    Inc.
DESCRIPTION:  Sample analysis results.

 6. 2. . .   Vol. 4 -    1030635    DOC ID:  70609 MAGED
      DATE:   9/21/95            PAGES:      4
Aim-IOR(S):                                          ADORESSEE(S):
      Sound Analytical Services                          Wendy MCLeod/OnSto Environmental. Inc.
DESCRIPTION:  Sample analyst* results.

 6. 2. . .   Vol.4-    1030636    DOCK):  70610 MAGED
      DATE:   9/28/95            PAGES:    268
AUTHOR(S):                                          ADORESSEE(S):
      Wendy MCLeod/OnSlte Environmental, Inc.             Kenneth V. Jennings/ICF Kaiser Engineers Group,
                                                    Inc.
DESCRIPTION:  Sample analysis results.

 6. 2. . .   Vol.4-    1030637    DOC ID:  70613 MAGED
      DATE:   10/3/95           PAGES:    374
AUTHOR(S):                                          ADDRESSEE(S):
      Wendy MCLecd/OnSfte Environmental, Inc.             Kenneth V. Jennings/ICF Kaiser Engineers Group,
                                                    Inc.
DESCRIPTION:  Sample analysis results.

SUB-HEAD:  I. 2.  .  .  Vol. 8 -    Sampling Data

 6. 2.  . .   Vol.5-    1030638    DOC ID:  70615 IMAGED
      DATE:   10/12/95          PAGES:    186
AUTHOR(S):                                          ADDRESSEE(S):
      Wendy MCLeod/OnSKe Environmental, Inc.            Kenneth V. Jennings/ICF Kaiser Engineers Group.
                                                    Inc.
DESCRIPTION:  Sample analysis results.
9/23/97                       U.S. Environmental Protection Agency, Region 10     Pege       58

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(BIAAR) BOOMSNUB/A1RCO - INTERIM ACTION AOMIN. RECORD INDEX

 6.  2.  . .   Vol.5-    1030639    DOC ID:   70616  WAGED
      DATE:   11/3/95            PAGES:     187
AUTHOR(S):                                          ADDRESSEE(S):
      Wendy MCLeod/OnSite Environmental. Inc.             Kenneth V. Jennings/lCF Kaiser Engineers Group
                                                     Inc.
DESCRIPTION: Sample analysis results.

 6.  2.  . .   Vol.5-    1030640    DOC ID:   70617  IMAGED
      DATE:   11/20/95            PAGES:     403
AUTHOR(S):                                          ADDRESSEE(S):
      Wendy MCLeod/OnSite Environmental, Inc.             Kenneth V. Jennings/lCF Kaiser Engineers Group,
                                                     inc.
DESCRIPTION: Sample analysis results.

 6.  2.  . .   Vol.5-    1030641     DOC ID:   70619  IMAGED
      DATE:   11/30/95            PAGES:     199
AUTHOR(S):                                          ADDRESSEE(S):
      Wendy MCLeod/OnSite Environmental. Inc.             Kenneth V. Jennings/lCF Kaiser Engineers Group,
                                                     Inc.
DESCRIPTION: Sample analysis results.

 6.  2.  . .   Vol. 5 -    1030643    DOC ID:   70620  MAGED
      DATE:   12/7/95            PAGES:     228
AUTHOR(S):                                          ADDRESSEE(S):
      Wendy MCLeod/OnSite Environmental. Inc.             Kenneth V. Jennings/lCF Kaiser Engineers Group.
                                                     Inc.
DESCRIPTION: Sample analysis results.

 6.  2.  . .   Vol.5-    1030644    DOC ID:   70621  IMAGED
      DATE:   12/14/95            PAGES:    214
AUTHOR(S):                                          ADDRESSEE(S):
      Wendy MCLeod/OnSfte Environmental, Inc.             Kenneth V. Jennings/lCF Kaiser Engineers Group,
                                                     Inc.
DESCRIPTION: Sample analysis results.

SUB-HEAD:   6. 2.  .  .   Vol. I -    Sampling Data

 6.  2.  . .   Vol. 6 -    1030645    DOC ID:   70622  IMAGED
      DATE:   12/15/95            PAGES:     556
ALTTHOR(S):                                          ADDRESSEE(S):
      Wendy MCLeooVOnStte Environmental, Inc.             Kenneth V. Jennings/lCF Kaiser Engineers Group,
                                                     Inc.
DESCRIPTION: Sample analysis results.

 6.  2.  . .   Vol.6-    1030646    DOC ID:   70623  IMAGED
      DATE:   12/29/95            PAGES:     185
AUTHOR(S):                                          ADDRESSEE(S):
      Wendy MCLeod/OnSite Environmental, Inc.             Kenneth V. Jennings/lCF Kaiser Engineers Group.
                                                     Inc.
DESCRIPTION: Sample analysis results.

 6.  2.  . .   Vol.6-    1030648    DOC ID:   70626  IMAGED
      DATE:   1/4/96             PAGES:    -296
AUTHOR(S):                                          ADDRESSEE(S):
      Wendy MCLeod/OnSite Environmental. Inc.             Kenneth V. JennlngsflCF Kaiser Engineers Group.
                                                     Inc.
9/23/97                       U.S. Environmental Protection Aaenev Rnnlnn m     Pan*

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(BIAAR) BOOMSNUB/AJRCO - INTERIM ACTION AOMIN. RECORD INDEX

DESCRIPTION: Sample analysis results.

 6.2...  Vol.6-    1030649   DOC ID:  70827  WAGED
      DATE-   1/5/96            PAGES:    128
AUTHOR(S):           -                              ADDRESSEE(S):
      Wendy MCLeooVOnSfte Environmental, Inc.            Kenneth V. Jennhgs/ICF Kaiser Engineers Group
                                                    Inc.
DESCRIPTION: Sample analysis results.

 6.2. . .  Vol.6-    1030650   DOC ID:  70628  IMAGED
      DATE:   1/10/96            PAGES:    182
AUTHOR(S):                                          ADDRESSEE(S):
      Wendy MCLeod/OnSfte Environmental, Inc.            Kenneth V. Jennhgs/ICF Kaiser Engineers Group,
                                                    Inc.
DESCRIPTION: Sample analysis results.

SUB-HEAD:   6. 2.  .  .  Vol. 7 -    Sampling Data

 6. 2. . .  Vol. 7 -    1030651    DOC ID:  70629  WAGED
      DATE:   1/16/96            PAGES:      7
AUTHOR(S):                                          ADDRESSEE(S):
      Wendy MCLeod/OnSite Environmental, Inc.            Kenneth V. Jenntngs/ICF Kaiser Engineers Group,
                                                    Inc.
DESCRIPTION: Sample analysis results.

 6. 2. . .  Vol.7-    1030652   DOC ID:  70630  IMAGED
      DATE:   1/23/96            PAGES:    124
AirmOR(S):                                          ADORESSEE(S):
      Wendy MCLeod/OnSKe Environmental, Inc.            Kenneth V. JennfeigsflCF Kaiser Engineers Group,
                                                    Inc.
DESCRIPTION: Sample analysis results.

 6. 2. . .  Vol. 7 -    1030653   DOC ID:  70631  WAGED
      DATE:   1/30/96            PAGES:    287
AUTHOR(S):                                          ADORESSEE(S):
      Wendy MCLeod/OnSite Environmental, Inc.            Kenneth V. Jenninga/ICF Kaiser Engineers Group,
                                                    Inc.
DESCRIPTION: Sample analysis results.

 6. 2. . .  Vol.7-    1030654   DOC ID:  70632  WAGED
      DATE:   2/15/96            PAGES:    185
AUTHOR(S):                                          ADDRESSEE(S):
      Wendy MCLeod/OnSite Environmental, Inc.            Kenneth V. Jennings/ICF Kaiser Engineers Group,
                                                    Inc.
DESCRIPTION: Sample analysis results.

 6. 2.  .  .  Vol.7-    1030200   DOC ID:  66034  IMAGED
      DATE:   8/6/96            PAGES:    303
AUTHOR(S):                                          ADDRESSEE(S):
      China Grepo-Grove/EPA                          Ann Williamson/EPA
DESCRIPTION: Data Validation Report for Volatile Organic Analysis of Samples from Boomsnub.

 6. 2.  .  .  Vol. 7 -    1030201   DOC ID:  66039  WAGED
      DATE:   8/8/96            PAGES:     76
AUTHOR(S):                                          ADDRESSEE(S):
      China Grepo-Grove/EPA                          Ann WilllamsonriEPA
9/23/97                       U.S. Environmental Protection Agency, Region 10     Page       60

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(BIAAR) BOOMSNUB/A1RCO - INTERIM ACTION AOMN. RECORD INDEX

DESCRIPTION:  Data Validation Report for Inorganic Analysis of Sample* from Boomsnub.

 6. 2. . .  Vol.7-    1030341    DOC ID:  68239  WAGED
      DATE:   12/23/96          PAGES:     96
AUTHOR(S):           ~                              ADDRESSEE(S):
      John P. FrericMCF Technology Inc.                  Ann Williamson/EPA
DESCRIPTION:  Formatting of May 1996 Ground Water Data.

 6. 2. . .  Vol. 7 -    1030342    DOC ID:  68251  IMAGED
      DATE:   12/23/96          PAGES:    287
AUTHOR(S):                                          ADDRESSEE(S):
      Ginna Grepo-Grove/EPA                           Ann Williamson/EPA
DESCRIPTION:  Data Validation Report for Volatile Organic Analysis.

SUB-HEAD:  C. 2. 1.  .  Vol. 1 -    Sampling & Analysis Plans

 6. 2. 1.  .  Vol.1 -   1037504    DOC ID:  40237  IMAGED
      DATE:   1/27/95            PAGES:     69
AUTHOR(S):                                          ADDRESSEE(S):
      William L Carbeny/Ecotogy & Environment, Inc.         Chris D. Field/EPA
DESCRIPTION:  Quality Assurance Sampling Plan (QASP) for groundwater treatment operation.

 6. 2. 1.  .  Vol.1 -   1037505    DOC ID:  40240  WAGED
      DATE:   5/25/95            PAGES:     10
AUTHOR(S):                                          ADDRESSEE(S):
      Kenneth V. Jennings/ICF Kaiser Engineers Group, Inc.    Ann Williamson/EPA
DESCRIPTION:  Review of Quafty Assurance Sampling Plan (QASP) for groundwater treatment operation.

 6.2.1.  .  Vol. 1 -   1037516    DOC ID:  40294  WAGED
      DATE:   1/1/96            PAGES:     34
AUTHOR(S):                                          ADDRESSEE(S):
      BemisZavala/EPA                               Deborah J. Yairamoto/EPA
DESCRIPTION:  Quality Assurance Sampling Plan - Groundwater Sampling through Temporary Wells.

 6.2. 1.  .  Vol.1 -   1030096    DOC ID:  41963  WAGED
      DATE:   1/31/96            PAGES:      1
AUTHOR(S):                                          ADDRESSEE(S):
      Donald Matheny/EPA                              Ann Williamson/EPA
DESCRIPTION:  Memo regarding review of Quality Assurance Sampling Plan.

 6.2.1.  .  Voi. 1 -   1030097    DOC ID:  41964  WAGED
      DATE:   2/5/96            PAGES:      1
AUTHOR(S):                                          ADDRESSEE(S):
      Donald Matheny/EPA                              Ann Williamson/EPA
DESCRIPTION:  Memo regarding review of Quality Assurance Sampling Plan.

 6. 2. 1.  .  Vol.1 -   1037981    DOC ID:  41729  WAGED
      DATE:   5/30/96            PAGES:      1
AUTHOR(S):                                          ADDRESSEE(S):
      Ann Williamson/EPA                              John FrericMCF Technology Inc.
DESCRIPTION:  Transmtttal of Quality Assurance Sampling Plan.

 6.2.1.  .  Vol.1-   1037976    DOC ID:  41724  IMAGED
      DATE:   6/4/96            PAGES:     21
AUTHOR(S):                                          ADDRESSEE(S):
      John P. Frerich/ICF Technology Inc.                  Ann Williamson/EPA
9/23/97                       U.S. Environmental Protection Aaencv. Reaton 10     Paae      61

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(BIAAR) BOOMSNUB/A1RCO - INTERIM ACTION AOMIN. RECORD INDEX

DESCRIPTION:  Quality Assurance Sampling Plan - Groundwater SampBng of Ion Exchange/Air Stripper Treatment
              System.

 6. 2. 1.  .  Vol.1-   1030259    DOC ID:   67301  IMAGED
      DATE:   10/25/96  -        PAGES:      15
AUTHOR(S):                                          ADDRESSEE(S):
      Bemte Zavala/EPA                                Ann Williamson/EPA
DESCRIPTION:  Quality Assurance Sampling Plan Addendum for Boomsnub/BOC Gases Ground Water Sampfing
              Event October 21-25,1996.

 6.2.1.  .  Vol.1-   1030608    DOC ID:   70417  IMAGED
      DATE:   4/8/97            PAGES:      12
AUTHOR(S):                                          ADDRESSEE(S):
      Bemto Zavala/EPA                                Deborah J. Yamamoto/EPA
DESCRIPTION:  Quality Assurance Sampling Plan Addendum for Boomsnub/BOC Gases Ground Water SampHng
              Event Spring - Week of May 4,1997.

SUB-HEAD:  I. 2. 2. .   Vol.1 -    Monthly Monitoring Reports

 6.2.2.  .  Vol.1-   1037517    DOC ID:   40295  IMAGED
      DATE:   4/10/95            PAGES:     117
AUTHOR(S):                                          ADDRESSEE(S):
      WHHam L. Carbeny/Ecology & Environment Inc.         Chris D. Reid/EPA
DESCRIPTION:  1/95 Monthly Monitoring Report

              NOTE: A/R Includes only 6 pages, up to Appendte A.

 6.2.2..  Vol.1-   1037518    DOC ID:   40296  WAGED
      DATE:   5/12)95            PAGES:     123
AUTHOR(S):                                          ADORESSEE(S):
      WUamL Carbeny/Ecology & Environment Inc.         Chris D. ReW/EPA
DESCRIPTION:  2/95 Monthly Monitoring Report

              NOTE: A/R Includes flrst 9 pages, up to Appendbt A.

 6.2.2.  .  Vol.1-   1037519    DOC ID:   40297  WAGED
      DATE:   5/19/95            PAGES:     113
ALTTHOR(S):                                          ADORESSEE(S):
      William L Carbeny/Ecology & Environment Inc.         Chris D. Field/EPA
DESCRIPTION:  3/95 Monthly Monitoring Report

              Note: A/R Includes only flrst 6 pages, up to Appendix A.

 6.2.2.  .  Vol.1-   1037520    DOC ID:   40298  IMAGED
      DATE:   6/9/95            PAGES:      21
AUTHOR(S):                                          ADDRESSEE(S):
      WIIHam L Carbeny/Ecology & Environment Inc.         Chris D. Reid/EPA
DESCRIPTION:  4/95 Monthly Monitoring Report

              NOTE: A/R includes only flrst 4 pages, up to Appendix A.

 6.2.2.  .  Vol.1-   1037521    DOC ID:  40299 IMAGED
      DATE:   6/29/95            PAGES:     143
AUTHOR(S):                                          ADDRESSEE(S):
      WHHam L. Carbeny/Ecology & Environment Inc.         Chris D. ReW/EPA
DESCRIPTION:  5/95 Monthly Monitoring Report.

              NOTE: A/R includes only first 6 pages, up to Appendix A.


9/23/97                       U.S. Environmental Protection Agency, Region 10     Page      62

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(BIAAR) BOOMSNUB/AIRCO - INTERIM ACTION AOMIN. RECORD INDEX
 6. 2. 2.  .   Vol. 1 -   1037522    DOC ID:  40300  WAGED
      DATE:   7/17/95            PAGES:    106
AUTHOR(S):           _                               ADDRESSEE(S):
      William L Carbeny/Ecotogy & Environment, Inc.         Chris D. Field/EPA
DESCRIPTION:   6/95 Monthly Monitoring Report

               NOTE: A/R includes only first 6 pages, up to Appendix A.

 6. 2. 2.  .   Vol. 1 -   1037523    DOC ID:  40301  MAGED
      DATE:   8/25/95            PAGES:    164
AUTHOR(S):                                           ADDRESSEE(S):
      Kenneth V. Jennings/ICF Kaiser Engineers Group, Inc.    Ann Williamson/EPA
DESCRIPTION:   7/95 Monthly Monitoring Report

               NOTE: A/R includes first 6 pages only, up to Appendix A.

 6.2.2.  .   Vol.1-   1037524    DOC ID:  40302  MAGED
      DATE:   9/27/95            PAGES:    170
AUTHOR(S):                                           ADDRESSEE(S):
      Kenneth V. Jennings/ICF Kaiser Engineers Group, Inc.    Ann Williamson£PA
DESCRIPTION:   8/95 Monthly Monitoring Report

               NOTE: A/R includes first 6 pages only, up to Appendix A.

 6.2.2.  .   Vol.1-   1037525    DOC ID:  40303  IMAGED
      DATE:   10/30/95           PAGES:    159
ALTTHOR(S):                                           ADDRESSEE(S):
      Kenneth V. Jennings/ICF Kaiser Engineer* Group, Inc.    Ann Wttliamson/EPA
DESCRIPTION:   9/95 Monthly Monitoring Report

               NOTE: A/R Includes first 7 pages only, up to Appendix A.

 6. 2.2..   Vol. 1 -   1037526    DOC ID:  40304  MAGED
      DATE:   1/10/96            PAGES:    156
AUTHOR(S):                                           ADDRESSEE(S):   .
      Kenneth V. Jennings/ICF Kaiser Engineers Group, Inc.    Ann Williamson/EPA
DESCRIPTION:   11/95 Monthly Monitoring Report

               NOTE: A/R includes first 7 pages only, up to Appendix A.

 6. 2. 2.  .   Vol. 1 -   1037921    DOC ID:  40787  IMAGED
      DATE:  2/8/96            PAGES:     54
AUTHOR(S):                                           ADDRESSEE(S):
      Kenneth Jennings/ICF Technology Inc.                Ann Wiltiamson/EPA
DESCRIPTION:  12/95 Monthly Extraction Well and System Monitoring Report and cover letter.

               NOTE: A/R includes first 6 pages only, up to Appendix A.

 6.2.2.  .   Vol.1-   1037850    DOC ID:  40788  IMAGED
      DATE:   2/19/96            PAGES:    140
AUTHOR(S):                                            ADDRESSEE(S):
      Kenneth Jennings/ICF Technology Inc.                 Ann Williamson/EPA
DESCRIPTION:  1/96 Monthly Extraction Well and System Monitoring Report

               NOTE: A/R includes only first 8 pages, up to Appendix A.
 9/23/97                        U.S. Environmental Protection Aaencv. Realon 10     Pan*

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(BIAAR) BOOMSNUB/AJRCO - INTERIM ACTION AOMN. RECORD INDEX

 6. 2. 2.  .   Vol. 1  •   1037851    DOC ID:  40769  WAGED
      DATE:  3/6/96             PAGES:    102
AUTHOR(S):                                          ADDRESSEE(S):
      Kenneth Jennings/ICF Technology Inc.                Ann WHBarnson/EPA
DESCRIPTION:  10/95 Monthly Extraction Well and System Monitoring Report and cover letter.

               NOTE: A/R Includes first 6 pages only, up to Appendix A.

 6. 2. 2.  .   Vol. 1  -   1037852    DOC ID:  40850  WAGED
      DATE:  3/27/96            PAGES:    153
AUTHOR(S):                                          ADDRESSEE(S):
      Kenneth Jennings/ICF Technology Inc.                Ann VWIHamson/lEPA
DESCRIPTION:  2/96 Monthly Extraction Well and System Monitoring Report

               NOTE: A/R Includes first 7 pages only, up to Appendix A.

 6. 2. 2.  .   Vol. 1  -   1037844    DOC ID:  41046  IMAGED
      DATE:  4/23/98            PAGES:    140
AUTHOR(S):                                          ADDRESSEE(S):
      Kenneth V. Jennings/ICF Kaiser Engineers Group, Inc.    Ann Williamson/EPA
DESCRIPTION:  3/96 Monthly Extraction Well and System Monitoring Report

               NOTE: A/R Includes first 7 pages, up to Apprendbr A.

 6. 2. 2.  .   Vol. 1  -   1037925    DOC ID:  41401  IMAGED
      DATE:  5/20/96            PAGES:    136
AUTHOR(S):                                          ADDRESSEE(S):
      John French/ICF Technology Inc.                    Ann Wilfiamson/lEPA
DESCRIPTION:  4/96 Monthly Extraction Well and System Monitoring Report

               NOTE: A/R includes first 7 pagew, up to Appendk A.

 6. 2. 2.  .   Vol. 1  -   1030148    DOC ID:  42744  WAGED
      DATE:  8/1/98             PAGES:    109
AUTHOR(S):                                          ADDRESSEE(S):
      John Frertch/ICF Technology Inc.                    Ann Williamson/EPA
DESCRIPTION:  6/98 Extraction Well and System Monitoring Report

               NOTE: A/R Includes first 6 pages, up to Appendix A.

 6.2.2.  .   Vol. 1  -   1030149    DOC ID:  42745  IMAGED
      DATE:'  8/21/96            PAGES:    190
AUTHOR(S):                                          ADDRESSEE(S):
      John Frerfch/ICF Technology Inc.                    Ann Williamson/EPA
DESCRIPTION:  7/96 Extraction Well and System Monitoring Report

               NOTE: A/R Includes first 6 pages, up to Appendix A.

 6.2.2.  .   Vol.1-   1030261    DOC ID:  67303  IMAGED
       DATE:  9/23/96            PAGES:    144
AUTHOR(S):                                           ADDRESSEE(S):
       John Frertch/ICF Technology Inc.                     Ann Williamson/EPA
DESCRIPTION:  8/96 Monthly Extraction Well and System Monitoring Report

               NOTE: A/R includes first 8 pages, up to Appendix A.
 9/23/97                       U.S. Environmental Protection Agency, Region 10     Page       64

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(BIAAR) BOOMSNUB/A1RCO - INTERIM ACTION ADMIN. RECORD INDEX

 6. 2. 2.  .   Vol. 1 -   1030262    DOC ID:  67304  IMAGED
      DATE:  9/26*6            PAGES:    117
ALTTHOR(S):                                           ADDRESSEE(S):
      John Frerich/ICF Technology Inc.                     Ann Williamson/EPA
DESCRIPTION: 5/96 Monthly Extraction Well and System Monitoring Report

              NOTE: A/R includes first 6 pages, up to Appendix A.

 6.2.2.  .   Vol. 1 -   1030260    DOC ID:  67302  IMAGED
      DATE:  10/31/96           PAGES:    146
AUTHOR(S):                                           ADDRESSEE(S):
      John Frerich/ICF Technology Inc.                     Ann Williamson/EPA
DESCRIPTION: 9/96 Monthly Extraction Well and System Monitoring Report.

              NOTE: A/R includes first 6 pages, up to Appendix A.

 6.2.2.  .   Vol. 1-   1030298    DOC ID:  68011  IMAGED
      DATE:  11/25/96           PAGES:    107
AUTHOR(S):                                           ADDRESSEE(S):
      John P. Frerich/ICF Technology Inc.                   Ann Williamson/EPA
DESCRIPTION: 10/96 Monthly Extraction Well and System Monitoring Report

              NOTE: A/R includes first 5 pages, up to Appendix A.

 6.2.2.  .   Vol. 1-   1030299    DOC ID:  68012 IMAGED
      DATE:  12/18/96           PAGES:     57
AUTHOR(S):                                           ADDRESSEE(S):
      John P. Frerich/ICF Technology Inc.                   Ann Williamson^PA
DESCRIPTION: 11/96 Monthly Extraction Well and System Monitoring Report

              NOTE: A/R Include* firsts page*. uptoAppendbA.

 6. 2. 2.  .   Vol. 1 -   1030300    DOC ID:  68013 WAGED
      DATE:  1/17/97            PAGES:    209
ALTTHOR(S):                                           ADDRESSEE(S):
      John P. Frerich/ICF Technology Inc.                   Ann Williamson/EPA
DESCRIPTION: 12/96 Monthly Extraction Well and System Monitoring Report

              NOTE: A/R includes first 10 pages, up to Appendix A.

 6:2.2.  .   Vol.1-   1030625    DOC ID:  70457 IMAGED
      DATE:  3/27/97            PAGES:    129
AUTHOR(S):                                           ADDRESSEE(S):
      John P. Frerich/ICF Technology Inc.                   Anne Dailey/EPA
DESCRIPTION: 2/97 Monthly Extraction Well and System Monitoring Report

              NOTE: A/R includes first 9 pages only, up to Appendix A.

 6. 2. 2.  .   Vol. 1 -   1030626    DOC ID:  70465  WAGED
      DATE:  4/16/97            PAGES:    140
AUTHOR(S):                                           ADDRESSEE(S):
      John P. Frerich/ICF Technology Inc.                   Anne Dailey/EPA
DESCRIPTION: 3/97 Monthly Extraction Well and System Monitoring Report

              NOTE? A/R includes first 9 pages only, up to Appendix A.
9/23/97                        U.S. Environmental Protection Aaencv.Reaton 10     P«n«

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(BIAAR) BOOMSNUB/AIRCO - INTERIM ACTION ADMIN. RECORD INDEX

 6. 2. 2.  .   Vol. 1 -   1030748    DOC ID:  71058  IMAGED
      DATE:   5/19/97            PAGES:    129
AUTHOR(S):                                          ADDRESSEE(S):
      John P. Frerich/lCF Technology Inc.                  Anne Dafley/EPA
DESCRIPTION: 41*7 Monthly Extraction Well and System Monitoring Report.

              NOTE: A/R includes first 8 pages onty, up to Appendix A.

 6. 2. 2.  .   Vol. 1 -   1030867    DOC ID:  72096
      DATE:   7/21/97            PAGES:    133
AUTHOR(S):                                          ADDRESSEE(S):
      John P. Frerich/lCF Technology Inc.                  Anne Dailey/EPA
DESCRIPTION: 6/97 Monthly Extraction Well and System Monitoring Report

              NOTE: A/R includes only first 7 pages, up to Appendix A.

 6. 2. 2.  .   Vol. 1 •   1030887    DOC ID:  72267
      DATE:   8/21/97            PAGES:    132
AUTHOR(S):                                          ADDRESSEE(S):
      John P. Frerich/lCF Technology Inc.                  Anne Dailey/EPA
DESCRIPTION: 7/97 Monthly Extraction Well and System Monitoring Report

              NOTE: A/R includes first 8 pages, up to Appendix A.

SUB-HEAD:   6. 2.  3.  .  Vol.1  -    QA Completeness Check

 6.2.3.  .   Vol.1-   1030862    DOC ID:  72078  IMAGED
      DATE:   6/20/97            PAGES:    280
AUTHOR(S):                                          ADDRESSEE(S):
      Ginna Grepo-Grove/EPA                           Deborah J. Yamamoto/EPA
DESCRIPTION: Data validation report for Volatile Organic Ana(ysis(VOA) of Samples from Boomsnub.

 6. 2. 3.  .   Vol. 1 -   1030863    DOC ID:  72085  WAGED
      DATE:   6/24/97            PAGES:     14
AUTHOR(S):                                          ADDRESSEE(S):
      Donald Matheny/EPA                             Deborah J. Yamamoto/EPA
DESCRIPTION: Data Validation for Boomsnub Service Request «K9703043, Metals Analysis.

 6. 2. 3.  .   Vol. 1 -   1030864    DOC ID:  72086  WAGED
      DATE:   6/24/97            PAGES:     12
AUTHOR(S):                                          ADDRESSEE(S):
      Donald Matheny/EPA                             Deborah J. Yamamoto/EPA
DESCRIPTION: Data Validation for Boomsnub Service Request fK9703064, Metals Analysis.

 6. 2. 3.  .   Vol. 1 -   1030865    DOC ID:  72087  IMAGED
      DATE:   6/24/97            PAGES:     27
AUTHOR(S):                                          ADDRESSEE(S):
      Donald Matheny/EPA                             Deborah J. Yamamoto/EPA
DESCRIPTION:  Data Validation for  Boomsnub Service Request 0K9703142. Metals Analysis.

 6. 2. 3.  .   Vol. 1 -   1030866    DOC ID:  72088  IMAGED
      DATE:  6/24/97            PAGES:     27
AUTHORCS):                                          ADDRESSEE(S):
      Donald Matheny/EPA                              Deborah J. Yamamoto/EPA
DESCRIPTION:  Data Validation for  Boomsnub Service Request «K9703159, Metals Analysis.

SUB-HEAD:   6.2.4.  .   Vol.1-   Geoprobe/Data Validation



9/23/97                        U.S. Environmental Protection  Agency, Region 10     Page       66

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(BIAAR) BOOMSNUB/A1RCO - INTERIM ACTION AOMIN. RECORD INDEX


 6.2.4.  .  Vol.1-   1037862    DOC ID:  41097  WAGED
      DATE:  2/29/96            PAGES:    685
AUTHOR(S):           _                              ADDRESSEE(S):
      Glnna Grepo-Grove/EPA                           Ann WUIiamson/EPA
DESCRIPTION:  Data validation Report for Volatile Organic and Total Chromium Analysis of Samples.

SUB-HEAD:  6. 3.  .  .  Vol.1 -    Step Drawdown Ta«t

 6. 3. . .  Vol. 1 -    1037530    DOC ID:  40335  WAGED
      DATE:  9/21/95            PAGES:      8
AUTHOR(S):                                          ADDRESSEE(S):
      Kenneth V. Jennings/ICF Kaiser Engineers Group, Inc.    Ann Williamson/EPA
DESCRIPTION:  Transmfttal of data from step drawdown test

SUB-HEAD:  6. 4.  .  .  Vol. 1 -    Operation and Maintenance^

 6. 4. . .  Vol.1 -    1033975    DOC ID:  40336  WAGED
      DATE:  4/5/95            PAGES:    221
AUTHOR(S):                                          ADDRESSEE(S):
      William L Carberry/Ecotogy & Environment, Inc.         Chris D. Field/EPA
DESCRIPTION:  Operations and Maintenance Manual for groundwater extraction and treatment system.

SUB-HEAD:  6. 4.  1.  .   Vol.1 -    Systems Operation Report

 6.4.1.  .  Vol.1-   1037532    DOC ID:  40338  IMAGED
      DATE:  3/24/95            PAGES:      5
AUTHOR(S):         .                                 ADDRESSEE(S):
      William L Carberry/Ecotogy & Environment. Inc.         Chris D. Field/EPA
DESCRIPTION:  2/95 System Operation Report

 6. 4. 1.  .  Vol. 1 -   1037533    DOC ID:  40339  WAGED
      DATE:  4/11/95            PAGES:      4
AUTHOR(S):                                          ADDRESSEE(S):
      William L Carbeny/Ecology & Environment Inc.         Chris D. Field/EPA
DESCRIPTION:  3/95 System Operation Report

 6.4.1.  .  Vol.1-   1037534    DOC ID:  40340  WAGED
      DATE:  5/12/95            PAGES:      5
AUTHOR(S):                                          ADDRESSEE(S):
      William L Carberry/Ecotogy & Environment Inc.         Chris D. Field/EPA
DESCRIPTION:  4/95 System Operation Report.

 6.4.1.  .  Vol.1-   1037535    DOC ID:  40341  WAGED
      DATE:  6/9/95            PAGES:      7
AUTHOR(S):                                          ADDRESSEE(S):
      Kenneth V. Jennings/ICF Kaiser Engineers Group, Inc.    Ann WUIiamson/EPA
DESCRIPTION:  5/95 System Operation Report

 6.4.1.  .  Vol.1-   1037536   DOC ID:  40342  IMAGED
      DATE:   7/10/95            PAGES:      6
AUTHOR(S):                                          ADDRESSEE(S).
      Kenneth V. Jennings/ICF Kaiser Engineers Group, Inc.    Ann Williamson/EPA
DESCRIPTION:  6/95 System Operation Report
9/23/97                       U.S. Environmental Protection Aaencv. Reaton 10     Paaa       87

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(BIAAR) BOOMSNUP/A1RCO - INTERIM ACTION ADMIN. RECORD INDEX

 6.4.1.  .  Vol.1-   1037537    DOC ID:  40343  IMAGED
      DATE:  8/7/95            PAGES:      4
AITTHOR(S):                                          ADDRESSEE(S):
      Kenneth V. Jennings/ICF Kaiser Engineers Group, Inc.    Ann Williamson/EPA
DbSCRIPTION: 7/95 System Operation Report

 6.  4. 1.  .  Vol.1 -   1037538    DOC ID:  40344  IMAGED
      DATE:  9/11/95            PAGES:      7
AUTHOR(S):                                          ADDRESSEE(S):
      Kenneth V. Jennings/ICF Kaiser Engineers Group, Inc.    Ann Williamson/EPA
DESCRIPTION: 8/95 System Operation Report

 6.4.1.  .  Vol.1-   1037539    DOC ID:  40345  IMAGED
      DATE:  10/30/95          PAGES:      7
AirmOR(S):                                          ADDRESSEE(S):
      Kenneth V. Jennings/ICF Kaiser Engineers Group, Inc.    Ann Williamson/EPA
DESCRIPTION: 9/95 System Operation Report

 6.4.1.  .  Vol.1-   1037540    DOC ID:  40346  IMAGED
      DATE:  11/7/95           PAGES:      7
AUTHOR(S):                                          ADDRESSEE(S):
      Kenneth V. Jennings/ICF Kaiser Engineers Group, Inc.    Ann Williamson/EPA
DESCRIPTION: 10/95 System Operation Report

 6.4.1.  .  Vol.1-   1037541    DOC ID:  40347  IMAGED
      DATE:  1/10/96            PAGES:      7
AirmOR(S):                                          ADDRESSEE(S):
      Kenneth V. Jennings/ICF Kaiser Engineers Group, Inc.    Ann WilliamsonftEPA
DESCRIPTION: 11/95 System Operation Report

 6.4.1.  .  Vol.1-   1037542    DOC ID:  40348  WAGED
      DATE:  1/16/96            PAGES:      5
AUTHOR(S):                                          ADORESSEE(S):
      Kenneth V. Jennings/ICF Kaiser Engineers Group, Inc.    Ann WnHamson/EPA
DESCRIPTION: 12/95 System Operation Report

 6.  4. 1.  .  Vol.1 -   1037853    DOC ID:  40851  IMAGED
      DATE:  2/9/96            PAGES:     14
AUTHOR(S):                                          ADDRESSEE(S):
      Kenneth Jennings/ICF Technology Inc.                Ann Williamson/EPA
DESCRIPTION: 1/96 System Operation Report

 6.  4. 1.  .  Vol. 1 -   1037854    DOC ID:  40852  IMAGED
      DATE:  3/11/96            PAGES:     12
AUTHOR(S):                                          ADDRESSEE(S):
      Kenneth Jennings/ICF Technology Inc.                Ann Williamson/EPA
DESCRIPTION: 2/98 System Operation Report

 6.4. 1.  .   Vol.1  -   1037915   DOC ID:  41212  IMAGED
      DATE:  4/11/96            PAGES:      6
AUTHOR(S):                                          ADDRESSEE(S):
      Kenneth V. Jennings/ICF Technology Incorporated      Ann Williamson/EPA
DESCRIPTION:  3/96 System Operation Report.

 6.4. 1.  .   Vol.1  -   1037916    DOC ID:  41213  IMAGED
      DATE:   5/9/96             PAGES:      10
AITTHOR(S):                                          ADDRESSEE(S):
 9/23/97                        U.S. Environmental Protection Agency, Region 10     Page      68

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(BIAAR) BOOMSNUB/AIRCO - INTERIM ACTION ADMIN. RECORD INDEX

      Kenneth V. Jennings/ICF Technology Incorporated       Ann WBBamson/EPA
DESCRIPTION:  4/96 System Operation Report.

 6. 4. 1.  .  Vol.1 -   4030018    DOC ID:   41815 IMAGED
      DATE:  6/10/96            PAGES:       9
ALTTHOR(S)-                                          ADDRESSEES):
      John FrericMCF Technology Inc.                     Ann WnUamson/EPA
DESCRIPTION:  S/96 System Operation Report.

 6. 4. 1.  .  Vol.1 -   1030656    DOC ID:   70646 IMAGED
      DATE:  7/12/96            PAGES:       6
AUTHOR(S):                                          AODRESSEE(S):
      John P. Frerich/lCF Technology Inc.                  Ann Williamson/EPA
DESCRIPTION:  6/96 System Operation Report.

 6. 4.-rr.  Vol.1-   1030657    DOC ID:   70647 WAGED
      DATE:  8/9/96            PAGES:       6
AUTHOR(S):                                          ADDRESSEE(S):
      John P. Frerich/lCF Technology Inc.                  Ann Williamson/EPA
DESCRIPTION:  7/96 System Operation Report

 6. 4. 1.  .  Vol.1 -   1030658    DOC ID:   70648 IMAGED
      DATE:  9/10/96            PAGES:       7
AUTHOR(S):                                          ADDRESSEE(S):
      John P. Frerich/lCF Technology Inc.                  Ann Williamson/EPA
DESCRIPTION:  8/96 System Operation Report.

 6. 4. 1.  .  Vol.1 -   1030659    DOC ID:   70649 WAGED
      DATE:  10/8/96            PAGES:       9
AUTHOR(S):                                          ADDRESSEE(S):
      John P. Frerich/lCF Technology Inc.                  Ann WDBamson/EPA
DESCRIPTION;  9/96 System Operation Report

 6.4.1.  .  Vol.1-   1030660    DOC ID:   70650 WAGED
      DATE:  11/11/96           PAGES:       8
AUTHOR(S):                                          ADDRESSEE(S):
      John P. Frerich/lCF Technology Inc.                  Ann Williamson/EPA
DESCRIPTION:  10/96 System Operation Report

 6. 4. 1.  .  Vol.1-   1030661    DOC ID:   70651 IMAGED
      DATE:  12/10/96           PAGES:       6
AUTHOR(S):                                          ADDRESSEE(S):
      John P. FrericMCF Technology Inc.                  Ann Williamson/EPA
DESCRIPTION:  11/96 System Operation Report.

 6. 4. 1.  .   Vol.1 -  1030662    DOC ID:  70652 IMAGED
      DATE:   1/10/97            PAGES:       9
AUTHOR(S):                                          ADDRESSEE(S):
      John P. Frerich/lCF Technology Inc.                  Ann Williamson/EPA
DESCRIPTION:  12/96 System Operation Report.

 6.4.1.  .   Vol.1 -  1030820    DOC ID:  71584 IMAGED
      DATE:   2/11/97            PAGES:     11
AUTHOR(S):                                          ADDRESSEE(S):
      John P. FrericMCF Technology Inc.                  Ann Williamson/EPA
 9/23/97                       U.S. Environmental Protection Agency. Region 10     Paoe       69

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(BIAAR) BOOHSNUB/AIRCO - INTERIM ACTION ADMIN. RECORD INDEX

DESCRIPTION:  1/97 System Operation Report

 6. 4. 1.  .  Vol.1-   1030441    DOC ID:  69879 IMAGED
      DATE:  3/7/97            PAGES:      9
AUTHOR(S):           -                              ADDRESSEE(S):
      John P. FrertcMCF Technology Inc.                  Anne Dafley/EPA
DESCRIPTION:  2/97 System Operation Report

 6.4.1.  .  Vol.1-   1030623    DOC ID:  70455 IMAGED
      DATE:  4/14/97            PAGES:      9
AUTHOR(S):                                          ADDRESSEE(S):
      John P. Frerich/ICF Technology Inc.                  Anne Dafley/EPA
DESCRIPTION:  3/97 System Operation Report

 6. 4. 1.  .  Vol. 1 -   1030794    DOC ID:  71270 IMAGED
      DATE:  5/72/97            PAGES:      9
AUTHOR(S):                                          ADDRESSEE(S):
      John P. Frerich/ICF Technology Inc.                  Anne Dailey/EPA
DESCRIPTION:  4/97 System Operation Report

 6. 4. 1.  .  Vol.1-   1030795    DOC ID:  71271 IMAGED
      DATE:  6/11/97            PAGES:      9
AUTHOR(S):     .                                     ADDRESSEE(S):
      John P. Frerich/ICF Technology Inc.                  Anne Dailey/EPA
DESCRIPTION:  5/97 System Operation Report

SUB-HEAD:  6.  4. 2. .  Vol.1 -    Emergency Actions

 6.4.2.  .  Vol.1-   1037543    DOC ID:  40349 IMAGED
      DATE:  12/1/95            PAGES:     19
AUTHOR(S):                                          ADDRESSEE(S):
      Bemle Zavala/EPA                               Ann WDIamson/EPA
DESCRIPTION:  Report of emergency shutdown due to equipment faflure on 11/23/95.

 6.4.2.  .  Vol.1 -   1030182    DOC ID:  42779 IMAGED
      DATE:  12/20/95           PAGES:     16
AUTHOR(S):                                          ADDRESSEE(S):
      Rick Roehl/Ecology & Environment, Inc.               EPA
DESCRIPTION:  Log book, photos and slides regarding water treatment repairs from 12/12/95 to 12/20/95.

 6. 4. 2.  .  Vol. 1 -   1030183    DOC ID:  42780 IMAGED
      DATE:  12/20/95           PAGES:      1
Al/THOR(S):                                          ADDRESSEE(S):
      Bemle Zavala/EPA                               Deborah J. Yamamoto/EPA
DESCRIPTION:  Memo regarding need for Boomsnub sludge analysis by x-ray diffraction and micro probe.

 6. 4. 2.  .   Vol. 1 -   1030184    DOC ID:  42782 WAGED
      DATE:   12/21/95           PAGES:      4
AUTHOR(S):                                          ADDRESSEE(S):
      Bart Cannon/Cannon Mtoroprobe                    Mark Woodke/Ecology & Environment, Inc.
DESCRIPTION:  Realization of costs for sludge sampling.

 6. 4. 2.  .   Vol. 1 -   1037544    DOC ID:  40350 IMAGED
      DATE:   1/22/96            PAGES:     20
ALTTHOR(S):                                          ADDRESSEE(S):
      William L. Carberry/Ecology & Environment, Inc.        Chris D. Ftekl/EPA
 9/23/97                       U.S. Environmental Protection Agency, Region 10     Page      70

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(BIAAR) BOOMSNUB/AJRCO - INTERIM ACTION ADMIN. RECORD INDEX

DESCRIPTION: Trip report of repairs to groundwater treatment.

 6.4.2.  .   Vol.1-   1037860    DOC ID:   40793 IMAGED
      DATE:  1/27/96            PAGES:       2
AUTHOR(S):         ~                                ADDRESSEES):
      Ann WBlamson/EPA                              Unknown
DESCRIPTION: Temporary well locations and summary of ground water analytical results.

 6.4.2.  .   Vol.1-   1037845    DOC ID:   41047 IMAGED
      DATE:  4/24/96            PAGES:      14
AUTHOR(S):                                          ADDRESSEE(S):
      Ann Williamson/EPA                              Richard Cyr/Claric County Public Utilities
      Ann WdUamson/EPA                              Rick Roehl/Ecotogy & Environment, Inc.
      Ann Williamson/EPA                              Elaine Spray/Cfty of Vancouver
DESCRIPTION: Letter and enclosed copy of ICF Technology's "Report on the Boomsnub System Upset and
              Corrective Actions Taken* (December, 1995), describing treatment process used at site.

 6. 4. 2.  .   Vol. 1 -   1037926    DOC ID:   41402 IMAGED
      DATE:  5/20/96            PAGES:       4
AUTHOR(S):                                          ADDRESSEE(S):
      Ann WilRamson/EPA                              John Frerich/ICF Technology Inc.
DESCRIPTION: Letter regarding need to Increase pumping rates of extraction wells.

 6. 4. 2.  .   Vol. 1 -   1037977    DOC ID:   41725 IMAGED
      DATE:  5/30/96            PAGES:       2
AUTHOR(S):                                          ADDRESSEE(S):
      Ann WUUamson/EPA                              John Frerich/ICF Technology Inc.
DESCRIPTION: Quality Assurance Sampling Plan - Groundwater Sampling of Ion Exchange/Air Stripper Treatment
              System.

 6.4.2.  .   Vol.1-   1030017    DOC ID:   41814 WAGED
      DATE:  6/7/96             PAGES:       3
AUTHOR(S):                                          ADDRESSEE(S):
      John Frerich/ICF Technology Inc.                     Ann WUDamson/EPA
DESCRIPTION: Pump rate test results.

 6.4.2.  .   Vol.1-   1030121     DOC ID:   42444 IMAGED
      DATE:  7/30/96            PAGES:       3
AUTHOR(S):                                          ADDRESSEE(S):
      Deborah J. Yamamoto/EPA                         Bill Gleeson/Ui Valley Industries, Inc.
DESCRIPTION: Letter advising of spill which occurred on 7/26/96 that may have overflowed onto La Valley
              property; prevention methods are also outlined.

 6.4.2.  .   Vol.1-   1030301     DOC ID:   68015 IMAGED
      DATE:  8/1/96             PAGES:       6
AUTHOR(S):                                          ADDRESSEE(S):
      John P. Frerich/ICF Technology Inc.                  Ann WUBamson/EPA
DESCRIPTION: Memo and photos regarding spill at Boomsnub site.
              NOTE: Original photos are in site file.

SUB-HEAD:   6. 5. .  .   Vol. 1  -     Disposal Information

 6. 5.  .  .   Vol.1  -    1037546    DOC ID:   40351 IMAGED
      DATE:                    PAGES:       3
AUTHOR(S):                                          ADDRESSEE(S):
      Unknown                                       Unknown
9/23/97                       U.8. Environmental Protection Aoencv. Reakxi 10     Paae       71

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(BIAAR) BOOMSNUB/A1RCO - INTERIM ACTION AOMIN. RECORD INDEX

DESCRIPTION: Infiltration Basin Composition - hand drawing*.

 6. 5.  . .   Vol. 1  -    1037548   DOC ID:  40352 WAGED
      DATE:   7/15/94            PAGES:      1
AUTHOR(S):           -                               ADDRESSEE(S):
      City of Vancouver                                 State of Washington Dept of Ecology
DESCRIPTION: Wastewater engineering statement of account

 6. 5.  . .   Vol. 1  -    1037547   DOC ID:  40353  MAGED
      DATE:   0/9/94            PAGES:      3
ALTTHOR(S):                                           ADDRESSEE(S):
      Thor Cutler/EPA                                  Victor Ehrflch/Cfty of Vancouver
DESCRIPTION: Quarterly monitoring report for third quarter 1994.

 6. 5.  . .   Vol.1  -    1037549   DOC ID:  40354  IMAGED
      DATE:   12/1/94           PAGES:    -4
AUTHOR(S):                                           ADDRESSEE(S):
      Rick Roehl/Ecology & Environment, Inc.                Unknown
DESCRIPTION: Weekly well walk log/dally monitoring reports.

 6. 5.  . .   Vol. 1  -    1037550   DOC ID:  40355  IMAGED
      DATE:   12/1/94           PAGES:      1
AUTHOR(S):                                           ADDRESSEE(S):
      Beth Feeley/EPA                                  Thomas Boyer/Cfty of Vancouver
DESCRIPTION: Monthly now data for November.

 6. 5.  . .   Vol. 1  -    1037551    DOC ID:  40358  IMAGED
      DATE:   3/1/95            PAGES:      3
AUTHOR(S):                                           ADDRESSEE(S):
      AnnWIBamson/EPA                               Victor Ehriich/Cly of Vancouver
DESCRIPTION: Quarterly monitoring report for first quarter1995.

 6. 5.  . .   Vol. 1  -    1037552   DOC ID:  40360  IMAGED
      DATE:   3/3/95            PAGES:      1
AUTHOR(S):                                           ADDRESSEE(S):
      Ann WOHamson/EPA                               Thomas Boyer/Cfty of Vancouver
DESCRIPTION: Letter regarding monthly flow data for February, 1995.

 6. 5.  . .   Vol. 1  -    1037553   DOC ID:  40362  IMAGED
      DATE:   4/17/95            PAGES:      1
AUTHOR(S):                                           ADDRESSEE(S):
      Ann Williamson/EPA                               Mary White/City of Vancouver
DESCRIPTION: Letter advising of change in contractors from E & E to ICF Kaiser.

 6. 5.  . .  Vol. 1  -    1037554   DOC ID:  40363 IMAGED
       DATE:   5/8*5            PAGES:      1
AUTHOR(S):                                           ADDRESSEE(S):
      Ann WIIHamson/EPA                               City of Vancouver
DESCRIPTION: Letter advising of monthly flow data for April 1995.

 6. 5.  . .  Vol. 1  -    1037555   DOC ID:  40364 MAGED
       DATE:   6/5/95            PAGES:      2
AUTHOR(S):                                           ADDRESSEE(S):
       Kenneth V. Jennings/ICF Kaiser Engineers Group, Inc.    Ann WIHiamsordEPA
DESCRIPTION: Evaluation of options for disposal method and disposal facility for spent resin.
 9/23/97                        U.S. Environmental Protection Agency, Region 10     Page       72

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(B1AAR) BOOMSNUB/AIRCO - INTERIM ACTION ADMIN. RECORD INDEX

 6. 5. . . •  VoLI -   1037556   DOC ID:  40365 IMAGED
      DATE:  6/8/95            PAGES:      1
AUTHOR(S):           _                             ADDRESSEE(S):
      Ann Williamson/EPA   '                          Thomas Boyer/Ctty of Vancouver
DESCRIPTION:  Monthly flow data for May, 1995.

 6. 5. . .   Vol.1-   1037557   DOC ID:  40366 IMAGED
      DATE:  7/6/95            PAGES:      1
AUTHOR(S):                                         ADDRESSEE(S):
      Ann Williamson/EPA                             Thomas Boyer/Ctty of Vancouver
DESCRIPTION:  Monthly flow data for June, 1995.

 6. 5. . .   Vol. 1 -   1037558   DOC ID:  40367 IMAGED
      DATE:  8/1/95            PAGES:      1
AUTHOR(S):                                         ADDRESSEE(S):
      Ann WUHamson/EPA                             Thomas Boyer/Cfly of Vancouver
DESCRIPTION:  Monthly flow data for July, 1995.

 6. 5. . .   Vol.1 -   1037559   DOC ID:  40369 IMAGED
      DATE:  9/1/95            PAGES:      1
AUTHOR(S):                                         ADDRESSEE(S):
      Ann Williamson/EPA                             Thomas Boyer/Ctty of Vancouver
DESCRIPTION:  Monthly flow data for August  1995.

 6. 5.  . .   Vol. 1 -   1037560   DOC ID:  40370 IMAGED
      DATE:  9/29/95           PAGES:      3
AUTHOR(S):                                         ADDRESSEE(S):
      Ann Williamson/EPA                             Victor Ehrtich/City of Vancouver
DESCRIPTION:  Third quarter 1995 monitoring report.

 6. 5.  . .   Vol.1 -   1037561   DOC ID:  40371 WAGED
      DATE:   10/2/95          PAGES:      1
AUTHOR(S):                                         ADDRESSEE(S):
      AnnWUBamson/EPA                             Thomas Boyer/Ctty of Vancouver
DESCRIPTION:  Monthly flow data for Sept 1995.

 6. 5.  . .   Vol. 1 •   1037397    DOC ID:  40075 IMAGED
      DATE:   10/16/95           PAGES:     12
AUTHOR(S):                                        ADDRESSEE(S):
      Ann WUUamson/EPA                             City of Vancouver
DESCRIPTION:  Revised third quarter permit monitoring report.

 6.  5.  . .  Vol.1  -    1037562    DOC ID:  40469 IMAGED
       DATE:   11/2/95           PAGES:      1
AUTHOR(S):                                        ADDRESSEE(S):
       Ann WUUamson/EPA                             Thomas Boyer/Ctty of Vancouver
DESCRIPTION:  10/95 flow data.

 6.  5.  . .  Vol. 1  -    1037563    DOC ID:  40373  IMAGED
       DATE:   12/4/95           PAGES:      12
AUTHOR(S):                                        ADDRESSEE(S):
       Ann Williamson/EPA                              Elaine Spray/City of Vancouver
 DESCRIPTION:  Letter regarding discharge violation.

 6. 5.  .  .  Vol. 1  -    1037565    DOC ID:   40374 IMAGED
       DATE:   12/19/95          PAGES:       7
 AUTHOR(S):                                         ADDRESSEE(S):
                             us F environmental Protection Agency. Reolori 10     Paoe      73

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(BIAAR) BOOMSNUB/AIRCO - INTERIM ACTION AOMIN. RECORD INDEX

      Ann WHBamson/EPA                              Elaine Spray/Cfty of Vancouver
DESCRIPTION:  EPA's response to violations of chromium levels in effluent samples.

 8. 5. . .   Vol. 1 -    1037564    DOC ID:  40375  IMAGED
      DATE   12/21/95-          PAGES:     11
AUTHOR(S):                                          ADDRESSEE(S):
      Ann WHBamson/EPA                              Cfty of Vancouver
DESCRIPTION:  Fourth quarter 1995 monitoring report

 6. 5. . .   Vol. 1 -    1037566    DOC ID:  40376  IMAGED
      DATE:   1/4/96            PAGES:      1
ALfTHOR(S):                                          ADDRESSEE(S):
      Ann Williamson/EPA                              Thomas Boyer/Cfty of Vancouver
DESCRIPTION:  12/95 monthly flow data.

 6. 5. . .   Vo<.1-    1030099    DOC ID:  41966  IMAGED
      DATE:   2/1/96            PAGES:      1
AUTHOR(S):                                          ADDRESSEE(S):
      Ann WUBamson/EPA                              Thomas Boyer/Cfty of Vancouver
DESCRIPTION:  1/96 flow data report

 6. 5. . .   Vol.1-    1030098    DOC ID:  41965  IMAGED
      DATE:   2/9/96            PAGES:      1
Aim-IOR(S):                                          ADDRESSEE(S):
      Unknown                                      Unknown
DESCRIPTION:  Statement regarding requirements for chemical analyses of samples obtained from groundwater
              treatment system.

 6. 5. . .   Vol. 1 -    1037846    DOC ID:  40795  IMAGED
      DATE:   3/4/96            PAGES:      2
AUTHOR(S):                                          ADDR£SSEE(S):
      Thor Cutler/EPA                                 Victor Ehrfch/Cfty of Vancouver
DESCRIPTION:' Letter and quarterly water treatment monitoring report for fourth quarter of 1994.

 6. 5. . .   Vol. 1 -    1037847    DOC ID:  40798  WAGED
      DATE:   3/4/96            PAGES:      1
AUTHOR(S):                                          ADDRESSEE(S):
      Ann Williamson/EPA                              Thomas Boyer/Cfty of Vancouver
DESCRIPTION:  Flow data for Boomsnub water treatment system for February 1996.

 6. 5. . .   Vol. 1 -    1037848    DOC ID:  40794  IMAGED
      DATE:   3/2096            PAGES:      3
ALTTHOR(S):                                          ADDRESSEE(S):
      Ann Williamson/EPA                              Thomas Boyer/Cfty of Vancouver
DESCRIPTION:  Letter advWng of violation of PH discharge Hmfts.

 6. 5.  . .   Vol. 1 -    1037849    DOC ID:  40853  IMAGED
      DATE:   3/21/96            PAGES:     16
AUTHOR(S):                                          ADDRESSEE(S):
      Ann Williamson/EPA                              Victor Ehrtteh/Clty of Vancouver
DESCRIPTION:  First quarter 1996 monitoring report for ground water treatment system.

 6. 5.  . .   Vol.1-    1037876    DOC ID:  41134  IMAGED
      DATE:   5/1/96            PAGES:       1
AUTHOR(S):                                          ADDRESSEE(S):
      Ann Williamson/EPA                              Thomas Boyer/Cfty of Vancouver
 9/23/97                        U.S. Environmental Protection Agency, Region 10     Page       74

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(B1AAR) BOOMSNUB/AIKCO - INTERIM AC11ON ADMIN. RECORD INDEX

DESCRIPTION:  4/96 flow data.

 6. 5. . .   Vol.1-   1037877    DOC ID:  41136  IMAGED
      DATE:  5/2/96  _          PAGES:      2
AUTHOR(S):                                         ADDRESSEE(S):
      Ann WUUamson/EPA                             Thomas Boyer/Ctty of Vancouver
DESCRIPTION:  Letter advising of excess ph levels.

 6. 5. . .   Vol.1 -   1037975    DOC ID:  41723  IMAGED
      DATE:  6/3/96             PAGES:      1
AUTHOR(S):                                         ADDRESSEE(S):
      Ann Williamson/EPA                             Thomas Boyer/Ctty of Vancouver
DESCRIPTION:  5/96 flow data.

 6. 5. . .   Vol.1 -   1030100    DOC ID:  42042  IMAGED
      DATE:  7/W96             PAGES:      1
AITTHOR(S):                                         ADDRESSEE(S):
      Ann Williamson/EPA                             Thomas Boyer/Ctty of Vancouver
DESCRIPTION:  6/96 flow data for water treatment system.
                               4
 6. 5. . .   Vol.1-   1030143    DOC ID:  42716  IMAGED
      DATE:  8/1/96             PAGES:      1
AUTHOR(S):                                         ADDRESSEE(S):
      Ann Williamson/EPA                             Thomas Boyer/City of Vancouver
DESCRIPTION:  7/96 flow data for Boomsnub water treatment system.

 6. 5. . .   Vol.1-   1030202    DOC ID:  66040  IMAGED
      DATE:  9/9/96             PAGES:      1
AUTHOR(S):                                         ADDRESSEE(S):
      Ann Williamson/EPA                             Thomas Boyer/Ctty of Vancouver
DESCRIPTION:  8/96 flow data.

 6. 5. . .   Vol. 1 -   1030245    DOC ID:  67256  WAGED
      DATE:  9/27/98            PAGES:     24
AUTHOR(S):                                         ADDRESSEE(S):
      Ann Williamson/EPA                             Victor Ehrttch/Ctty of Vancouver
DESCRIPTION:  Third quarter 1996 monitoring report

 6. 5.  . .   Vol.1-   1030244    DOC ID:  67253  IMAGED
      DATE:  10/1/96           PAGES:      1
AUTHOR(S):                                         ADDRESSEE(S):
      Ann WUUamson/EPA                             Thomas Boyer/Ctty of Vancouver
DESCRIPTION:  9/96 flow data.

 6. 5.  . .   Vol.1 -   1030263    DOC ID:  67305  WAGED
      DATE:   11/1/98           PAGES:      1
AUTHOR(S):                                         ADDRESSEE(S):
      Ann Williamson/EPA                             Thomas Boyer/Ctty of Vancouver
DESCRIPTION:  10/96 Boomsnub Water Treatment System flow data.

 6. 5.  . .   Vol. 1 -   1030281    DOC ID:  67475 IMAGED
      DATE:   12/2/96           PAGES:       1
AUTHOR(S):                                         ADDRESSEE(S):
      Ann Williamson/EPA                             Thomas Boyer/Ctty of Vancouver
DESCRIPTION:  11/96 flow data.
9/23/97                       U.S. Environmental Protection Aoencv. Reoion 10     Pane       75

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(BIAAR) BOOMSNUB/AIRCO - INTERIM ACTION AOMN. RECORD INDEX

 6. 5. .  .   Vol. 1 -   1030302    DOC ID:  68020  WAGED
      DATE:  1/2/97            PAGES:     15
AUTHOR(S):                                         AODRESSEE(S):
      Ann WDBamson/EPA                             Victor Ehrfich/CHy of Vancouver
DESCRIPTION:  Fourth quarter 1996 monitoring report

 6. 5. .  .   Vol. 1 -   1030303    DOC ID:  68021  IMAGED
      DATE:  1/6/97            PAGES:      1
ALTTHOR(S):                                         ADDRESSEE(S):
      Ann WRRamson/EPA                             Thomas Boyer/Cfty of Vancouver
DESCRIPTION:  December 1996 flow data report.

 6. 5. .  .   Vol. 1 -   1030334    DOC ID:  68204  IMAGED
      DATE:  2/3/97            PAGES:      1
ALrTHOR(S):               _.                         ADDRESSEE(S):
      Ann WHKamson/EPA  —                        Thomas Boyer/Cfty of Vancouver
DESCRIPTION:  1/97 flow data.

 6. 5. .  .   Vol. 1 -   1030390    DOC ID:  69010  MAGED
      DATE:  3/3/97            PAGES:      1
AUTHOR(S):                                         ADDRESSEE(S):
      John P. Frerich/ICF Technology Inc.                  Thomas Boyer/Cfty of Vancouver
DESCRIPTION:  2/97 flow data.

 6. 5. .  .   Vol. 1 -   1030749    DOC ID:  710S7  IMAGED
      DATE:  3/21/97            PAGES:      4
ALTTHOR(S):                                         ADDRESSEE(S):
      John P. Frerich/ICF Technology Inc.                  Anne Dailey/EPA
DESCRIPTION:  First quarter 1997 mentoring report      ,

 6. 5. .  .   Vol. 1 -   1030624    DOC ID:  70456  IMAGED
      DATE:  3/31/97            PAGES:     13
AUTHOR(S):                                         ADDRESSEE(S):
      Anne Dafley/EPA                                Victor EhrficMCfty of Vancouver
DESCRIPTION:  First quarter 1997 monitoring report

 6. 5. .  .   Vol. 1 •   1030607    DOC ID:  70416  IMAGED
      DATE:  4/1/97            PAGES:      1
AUTHOR(S):                                         ADDRESSEE(S):
      Anne Dafley/EPA                                Thomas Boyer/Cfty of Vancouver
DESCRIPTION:  3/97 flow data.

 6. 5. .  .   Vol. 1 -   1030677    DOC ID:  70679  IMAGED
      DATE:  5/1/97            PAGES:      1
AUTHOR(S):                                         ADDRESSEE(S):
      John P. Frerich/ICF Technology Inc.                  Thomas Boyer/Cfty of Vancouver
DESCRIPTION:  4/97 flow data.

 6. 5. .  .   Vol. 1 -   1030782    DOC ID:  71190  MAGED
      DATE:  8/3/97            PAGES:      1
AUTHOR(S):                                         ADDRESSEE(S):
      John Frerich/ICF Technology Inc.                   Thomas Boyer/Cfty of Vancouver
DESCRIPTION:  5/97 flow data.

 6. 5. .  .   Vol. 1 -   1030814    DOC ID:  71444  IMAGED
      DATE:  6/27/97            PAGES:     15
AUTHOR(S):                                         ADDRESSEE(S):
9/23/97                       U.S. Environmental Protection Agency, Region 10     Page       76

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(BIAAR) BOOMSNUB/A1RCO - INTERIM ACTION ADMIN. RECORD INDEX

      Anno Daley/EPA                                 Victor EhrHch/Ctty of Vancouver
DESCRIPTION:  Second quarter 1997 mentoring report.

 6. 5. . .   Vol.1-   1030815    DOC ID:   71445  IMAGED
      DATE:  7/1/97            PAGES:       1
AUTHOR(S):                                          ADDRESSEE(S):
      Anne DaOey/EPA                                 Thomas Boyer/Ctty of Vancouver
DESCRIPTION:  6/97 now data.

SUB-HEAD:  6. 6.  .  .   Vol.1  -   ' Extraction System Modeling

 6. 6. . .   Vol.1-   1030016    DOC ID:   41813  IMAGED
      DATE:                    PAGES:       2
AUTHOR(S):                                          ADDRESCEE(S):
      Bemie Zavala/EPA                            --  Ann Williamson/EPA
DESCRIPTION:  Handwritten notes and drawings on extractMg-Yystem.

 6. 6. . .   Vol. 1 -   1037567    DOC ID:   40475  WAGED
      DATE:  10731/95           PAGES:       3
AUTHOR(S):                                          ADDRESSEE(S):
      ICF Technology, Inc.                              Unknown
DESCRIPTION:  Topography maps of capture zones; figure 1, figure 2, Option A, figure 3, Option B.

 6. 6. . .   Vol.1 -   1037828    DOC ID:   41522  IMAGED
      DATE:  5/31/96            PAGES:       7
AUTHOR(S):                                          ADDRESSEE(S):
      ICF Technology, Inc.                              Ann Williamson/EPA
DESCRIPTION:  Final Groundwater Flow and Particle Tracking Modeling.
                             U.S. Environmental Protection Agency. Region 10     Paoe       77;

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(BIAAR) BOOMSNUB/A1RCO - INTERIM ACTION AOMIN. RECORD INDEX

HEADING:   8. 0. .  .        STATE INVOLVEMENT/COORDINATION

SUB-HEAD:  8. 1.  .  .   Vol.1 -    Correspondent*

SUB-HEAD:  8. 1. 1. . ~ Vol. 1  •    Formal Correspondence

 8.  1. 1.  .   Vol.1 -   103756S   DOC ID:  40476  WAGED
      DATE:  3/11/93           PAGES:      2
AUTHOR(S):                                          ADDRESSEE(S):
      Carol L Fleskes/State of Washington                 Randall F. SmHh/EPA
DESCRIPTION:  Letter requesting that EPA expedite ranking of site as hazardous.

 8.  1. 1.  .   Vol.1 -   1037S69   DOC ID:  40477  IMAGED
      DATE:  7/21/93           PAGES:      2
AUTHOR(S):                                          ADDRESSEE(S):
      Randall F. Smith/EPA                             Carol L Ffeskes/State of Washington
DESCRIPTION:  Response letter advising that site does not quaBfy for NPL feting based on HRS score.

 8.  1. 1.  .   Vol.1 -   1037570   DOC ID:  40478  IMAGED
      DATE:  3/2/94            PAGES:      4
AUTHOR(S):                                          ADDRESSEE(S):
      Megan White/State  of Washington                    James Merriam/Airco Gases
DESCRIPTION:  First Amendment to Enforcement Order DE 93TC-S335.

 8.  1. 1.  .   Vol. 1 -   1037571    DOC ID:  40479  IMAGED
      DATE:  4/8/94            PAGES:      2
AUTHOR(S):                                          ADDRESSEE(S):
      Mary Beth Hayes/State of Washington Dept of Ecology   Thor Cutter/EPA
DESCRIPTION:  Letter regarding sofl data and chromium cleanup level (no data attached).
 6.  1. 1.  .   Vol.1 -   1037572    DOC ID:  40480  WAGED
      DATE:   4/27/94            PAGES:      2
AUTHOR(S):                                          ADDRESSEE(S):
      Mfke Blum/State of Washington Dept of Ecology        James Merriam/Alrco Gases
DESCRIPTION: Letter advising of Airco's responsibility for wastawater discharge pern*.

 8.  1. 1.  .   Vol.1 -   1037573    DOC ID:  40481  IMAGED
      DATE:   4/29/94            PAGES:      7
AUTHOR(S):                                          ADORESSEE(S):
      Mary Beth Hayes/State of Washington Dept. of Ecology   Thor Cutler/EPA
DESCRIPTION: Transmfttal of Sept 1993 Fact Sheet on Boomsnub, and March 1994 Groundwater and Treatment
              System Report

 8.  1. 1.  .   Vol. 1 -   1037574    DOC ID:  40482  IMAGED
      DATE:  5/9/94            PAGES:      3
AUTHOR(S):                                          ADDRESSEE(S):
      David B. Jansen/State of Washington Dept of Ecology   EPA
DESCRIPTION: Letter regarding proposed listing of Alrco Gases on NPL.

 8. 1. 1.  .  Vol.1  -   1037575   DOC ID:  40483  IMAGED
      DATE:  5/24/94           PAGES:      1
AUTHOR(S):                                          ADDRESSEE(S):
      Elaine Spray/City of Vancouver                     Mary Bath Hayes/State of Washington Dept. of
                                                     Ecology
 9/23/97                       U.S. Environmental Protection Agency, Region 10     Page       78

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(BIAAR) BOOMSNUB/A1RCO - INTERIM ACTION ADMIN. RECORD INDEX

DESCRIPTION: Letter regarding transfer of dty discharge permft.

 8.  1. 1.  .   Vol.1 -   1037576    DOC ID:  40484 WAGED
      DATE:  5/26/94             PAGES:      2
AUTHOR(S):          -                               ADDRESSEE(S):
      Richard Cyr/Ctark County Public Utilities               Thor Cutler/EPA
DESCRIPTION: Letter advising of utilities' willingness to cooperate In cleanup.

 8.  1. 1.  .   Vol.1 -   1037577    DOC ID:  40485 WAGED
      DATE:  5/31/94             PAGES?      1
AJTHOR(S):                                          ADDRESSEE(S):
      Tina Masterson/Washlngton State Department of Ecology Ann Williamson/EPA
DESCRIPTION: Cover letter transmitting enforcement information and approved work plans (not attached).

 8.  1. 1   .   Vol. 1 -   1037576    DOC ID:  40486 WAGED
      DATE:  6/14/94             PAGES:      5
AUTHOR(S):                                          ADDRESSEE(S):  •
      Dan Alexanten/WDOE                             Ann Williamson/EPA
DESCRIPTION: Letter expressing concern about chromium plume.

 8.  1. 1.  .   Vol. 1 -   1037579    DOC ID:  40487  IMAGED
      DATE:  7/7/94             PAGES:      1
AUTHOR(S):                                          ADDRESSEE(S):
      Mike  Blum/State of Washington Dept of Ecology        State of Washington
DESCRIPTION: Letter advising not to sell property adjacent to Boomsnub.

 8.  1. 1.  .   Vol.1 -   1037580    DOC ID:  40488  WAGED
      DATE:  7/15/94             PAGES:      3
AUTHOR(S):                                          ADDRESSEE(S):
      K. SeBer/Washington State Department of Ecology       Jason Niblett/Boomsnub Corp.
DESCRIPTION: Letter advising of need to aubmtt an engineering report, plans and specifications and an operations
              and maintenance manual for new construction.

 8.  1. 1.  .   Vol.1 -   1037581     DOC ID:  40489  WAGED
      DATE:  7/22/94             PAGES:      1
AUTHOR(S):                                          ADDRESSEE(S):
      Mary Beth Hayes/State of Washington Dept of Ecology   Elaine Spray/City of Vancouver
DESCRIPTION: June 1994 flow data for groundwater cleanup project

 8.  1. 1.  .   Vol.1 -   1037582    DOC ID:  40490 WAGED
      DATE:  7/26/94             PAGES:      1
AUTHOR(S):                                          ADDRESSEE(S):
      Mary Beth Hayes/State of Washington Dept of Ecology   Elaine Spray/City of Vancouver
DESCRIPTION: Letter regarding discharge permit

 8.  1. 1.  .   Vol.1-   1037583    DOC ID:  40491  IMAGED
      DATE:  8/8/94             PAGES:      5
AUTHOR(S):                                          ADDRESSEE(S):
      Tina Masteraon/Washington State Department of Ecology Ann Williamson/EPA
DESCRIPTION: Transmittal of agreement for Wastewater Discharge Fees.

 8.  1. 1.  .   Vol.1 -   1037584    DOC ID:  40492 WAGED
      DATE:  8/8/94             PAGES:      3
AUTHOR(S):                                          ADDRESSEE(S):
      Mary Beth Hayes/State of Washington Dept. of Ecology   Juanita Fitzgerald/Unknown
9/23/B7                        U.S. Environmental Protection Aaencv. Radon 10     Pada       70

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(BIAAR) BOOMSNUB/AJRCO - INTERIM ACTION ADMM. RECORD INDEX

DESCRIPTION:  Well sampling results.

 8.1.1.  .  Vol.1-   1037585    DOC ID:  40493  MAGED
      DATE:   9/8/94            PAGES:      2
AUTHOR(S):           _                              ADDRESSEE(S):
      Mary Betti Hayes/State of Washington DepL of Ecology   Robert WDOams/Unknown
DESCRIPTION:  Well sampling results.

 8.1.1.  .  Vol.1-   1037589    DOC ID:  40494  IMAGED
      DATE:   9/9/94            PAGES:      3
AirTHOR(S):                                          ADDRESSEE(S):
      Mary Beth Hayes/State of Washington DepL of Ecology   Robert Crockford/Unknown
DESCRIPTION:  Well sampling results.

 8. 1. 1.  .  Vol.1 -   1037586    DOC ID:  40495  MAGED
      DATE:   9/14/94            PAGES:      1
AUTHOR(S):                                          ADDRESSEE(S):
      Tina Masterson/Washington State Department of Ecology James Merriam/BOC Gases
DESCRIPTION:  Letter advising company to negotiate an agreement wfth EPA for payment of wastewater discharge
              fee.

 8. 1. 1.  .  Vol.1-   1037587    DOC ID:  40496  IMAGED
      DATE:   10/19/94           PAGES:      3
AUTHOR(S):                                          ADDRESSEE(S):
      Ann Williamson/EPA                              Mary Beth Hayes/State of Washington Dept of
                                                    Ecology
DESCRIPTION:  Statement of Work for agency assistance between EPA and DepL of Ecology.

 8.1.1.  .  Vol.1-   1037588    DOC ID:  40497  MAGED
      DATE:   11/9/94           PAGES:      1
AUTHOR(S):                                          ADDRESSEE(S):
      Tina Masterson/Washlngton State Department of Ecology James Merriam/BOC Gases
DESCRIPTION:  Letter regarding concurrence on disposal of sol that has not been treated tor contaminants.

 8. 1. 1.  .  Vol.1-   1037590    DOC ID:  40498  MAGED
      DATE:   3/3/95            PAGES:     15
AUTHOR(S):                                          ADDRESSEE(S):
      Mary Beth Hayes/State of Washington DepL of Ecology   Ann WHIlamsoMEPA
DESCRIPTION:  Memo wfth attached letters sent to individuals in Jufy-Aug. 1993 requesting contributions for
              cleanup.

 8.1.1.  .  Vol.1-   1030140    DOC ID:  42614  IMAGED
      DATE:   4/25/95            PAGES:      1
AUTHOR(S):                                          ADDRESSEE(S):
      Mary Beth Hayes/State of Washington Dept. of Ecology   EPA
DESCRIPTION:  Quarterly Report for 1/1/95 - 03/31/95.

 8. 1. 1.  .  Vol.1 -   1037591    DOC ID:  40499  IMAGED
      DATE:   6/20/95           PAGES:       1
AUTHOR(S):                                          ADDRESSEE(S):
      David B. Jansen/State of Washington DepL of Ecology    State of Washington
DESCRIPTION:  Letter regarding release of state property on NE 78th St., Vancouver.

 8. 1. 1.  .  Vol.1 -   1037592    DOC ID:  40500  IMAGED
      DATE:   9/7/95            PAGES:      13
AUTHOR(S):                                          ADDRESSEE(S):
      Mary Beth Hayes/State of Washington Dept of Ecology   Mark McLoud/Whrffield-Bemhardt Realtors
9/23/97                       U.S. Environmental Protection Agency, Region 10     Page       80

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       dUOMSNUB/AJRCO - INTERIM ACTION ADMN. RECORD INDEX

DESCRIPTION: Reply to inquiry regarding groundwater plunw.

 6.  1. 1.  .   Vd.1 -   1037593    DOC ID:  40501  MAGED
      DATE:   10/2/95           PAGES:      1
AUTHOR(S):                                           ADDRESSEE(S):
      Mary Bath Hayes/State of Washington Dept of Ecology    Robert Crockford/Unknown
DESCRIPTION: Reply to inquiry; advisement that well is still tainted with chromium.

 8.  1. 1.  .   Vol.1 -   1037929    DOC ID:  41547  MAGED
      DATE:   4/30/96         '   PAGES:      2
ALTTHOR(S):                                           ADDRESSEE(S):
      Mary Beth Hayes/State of Washington Dept of Ecology    EPA
DESCRIPTION: Washington State MSCA Quarterly Report

 8.  1. 1.  .   Vol.1 -   1030203    DOC ID:  66041  IMAGED
      DATE:   8/7/96            PAGES:      1
AUTHOR(S):                                           ADDRESSEE(S):
      Mary Beth Hayes/State of Washington Dept of Ecology    John Frerich/lCF Technology Inc.
DESCRIPTION: Letter of transmlttal regarding Boomsnub groundwater extraction information.

 8.  1. 1.  .   Vol.1 -   1030315    DOC ID:  68024  IMAGED
      DATE:   8/12/96            PAGES: .    8
AUTHOR(S):                                           ADDRESSEE(S):
      Ann Williamson/EPA                               Mary B. Hayes/Washington State Department of
                                                     Ecology
DESCRIPTION: Response to Ecology's request for ground water data.

 8.  1. 1.  .   Vol.1 •   1030271    DOC ID:  67433  IMAGED
      DATE:   10/21/96          PAGES:      2
AUTHOR(S):                                           ADDRESSEE(S):
      Dan Alexanian/WDOE                              EPA
DESCRIPTION: 10/96 Quarterly progress report from Dept of Ecology.

 8.  1. 1.  .   Vol.1 -   1030272    DOC ID:  67435  IMAGED
      DATE:   11/12/96          PAGES:      2
AUTHOR(S):                                           ADDRESSEE(S):
      Truman Beeler/EPA                               Mary Burg/Washington Dept of Ecology
DESCRIPTION: Letter regarding audit of Ecology's daim for cost share credit at Boomsnub.

 8.  1. 1.  .   Vol.1 -   1030786    DOC ID:  71195  IMAGED
      DATE:   2/28/97            PAGES:      3
AUTHOR(S):                                           ADDRESSEE(S):
      Washington State Department of Ecology
DESCRIPTION: Washington State Quarterly Report, 4th quarter, 1996.

 8.  1. 1.  .   Vol.1 •   1030679    DOC ID:  70681  IMAGED
      DATE:   4/10/97            PAGES:      2
AUTHOR(S):                                           ADDRESSEE(S):
      Deborah J. Yamamoto/EPA                         Dan Alexanian/WDOE
DESCRIPTION: Request for ARARs for the Boomsnub/Airco Superfund Site.

 8.  1. 1.  .   Vol.1 •   1030812    DOC ID:  71439  MAGED
      DATE:   6/30/97            PAGES:      1
AUTHOR(S):                                           ADDRESSEE(S):
      Dan Alexanian/WDOE                             Deborah J. Yamamoto/EPA
9/23/97                       U.S. Environmental Protection Agency. Region 10     Paaa       81

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       ouuMSNUB/AIRCO - INTERIM ACTION ADMIN. RECORD INDEX

DESCRIPTION:  Concurrence letter to EPA's Proposed Plan.

SUB-HEAD:  8. 1. 2. .   Vol.1 -    Handwritten Correspondence

 8.1.2.  .  Vol.1.   1037595    DOC ID:   40503  IMAGED
      DATE:   12/9*4-           PAGES:       1
AUTHOR(S):                               .           ADDRESSEE(S):
      Mary Beth Hayes/State of Washington Dept of Ecology    Ann Wttamson/EPA
DESCRIPTION:  Letter of transmittal itemizing 4 reports sent to Ann WiBamson.

 8.  1. 2.  .  Vol.1.   1030204    DOC ID:   06042  WAGED
      DATE:   8/13/96            PAGES:      6
AUTHOR(S):                                          ADDRESSEE(S):
      Sean Sheldrake/EPA                             Ann WHfiamson/EPA
      Sean Sheldrake/EPA                           .  Deborah J. Yamamoto/EPA
      Sean Sheldrake/EPA                             Bemie Zavala/EPA
DESCRIPTION:  E-mafl correspondence discussing reinjedton of treated groundwater.
 9/23/97                       U.S. Environmental Protection Agency, Region 10     Page      82

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(BIAAR) BOOMSNUB/AIRCO - INTERIM ACTION ADMIN. RECORD INDEX

HEADING:   9. 0.  .  .        MUNICIPAL/LOCAL GOVERNMENT INVOLVEMENT

SUB-HEAD:  9. 1.  . .  Vol.1 -    Correspondence

 9. 1. . .Vol.1 -    1037625   DOC ID:  40537 IMAGED
      DATE:  4/13/94           PAGES:      3
AUTHOR(S):                                           ADDRESSEE(S):
      Dan Mattock/Pacific Groundwater Group               Thor Cutler/EPA
DESCRIPTION:  Letter with table attached showing locations of mentoring wells and water supply wells.

 9. 1. . .  Vol.1 -    1037626   DOC ID:  40541  IMAGED
      DATE:  5/26/94           PAGES:      2
AUTHOR(S):                                           ADDRESSEE(S):
      Richard Cyr/Ctark County Public Utilities               Thor Cutler/EPA
DESCRIPTION:  Letter expressing utilities' Interest in Involvement in cleanup project

 9. 1. . .  Vol.1 -    1037627   DOC ID:  40538 WAGED
      DATE:  6/27/94           PAGES:      1
AUTHOR(S):                                           ADDRESSEE(S):
      Elaine Spray/Ctty of Vancouver                       John Roland/Ecology & Environment, Inc.
DESCRIPTION:  Requirements for city discharge permit #90-7.

 9. 1. . .  Vol.1-    1037628   DOC ID:  40542 IMAGED
      DATE:  7/18/94           PAGES:      8
AUTHOR(S):                                           ADDRESSEE(S):
      Mary Beth Hayes/State of Washington Dept of Ecology    Thor Cutler/EPA
DESCRIPTION:  Fax transmittal of information from city of Vancouver including water quality sampling results from
              June 94.
              Note: Original document is a copy, transmittal sheet covers top of page.

 9. 1. . .  Vol.1 -    1037629   DOC ID:  40539 WAGED
      DATE:  7/20/94           PAGES:      2
AUTHOR(S):                                           ADDRESSEE(S):
      Mary Beth Hayes/State of Washington Dept of Ecology    Thor Cutter/EPA
DESCRIPTION:  Letter regarding cleanup activities and proposed action at Boomsnub.

 9. 1. . .  Vol.1 -   1037630   DOC ID:  40540 IMAGED
      DATE:  7/26/94           PAGES:      1
AUTHOR(S):                                           ADDRESSEES):
      Mary Beth Hayes/State of Washington Dept of Ecology    Elaine Spray/City of Vancouver
DESCRIPTION:  Letter regarding discharge permit modification.

 9. 1.  .  .  Vol.1 -   1037631   DOC ID:  40543 IMAGED
      DATE:  7/27/94           PAGES:      2
AUTHOR(S):                                           ADDRESSEE(S):
      Mary White/City of Vancouver                       Mary Beth Hayes/State of Washington Dept of
                                                     Ecology
DESCRIPTION:  Revised sewer discharge permit

 9. 1.  .  .  Vol.1  -   1037632    DOC ID:  40544 IMAGED
      DATE:   8/11/94            PAGES:       1
AUTHOR(S):                                          ADDRESSEE(S):
      Randall F. Smith/EPA                             Thor Cutler/EPA
DESCRIPTION: Memo regarding phone conversation with city manager of Vancouver.
                              U.S. Environmental Protection Aaencv. Reaion 10     Pane      83

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(BIAAR) BOOMSNUB/AJRCO - INTERIM ACTION ADMIN. RECORD INDEX

 9. 1.  . .  Vol. 1 -    1037633    DOC ID:   40545 IMAGED
      DATE:   8/17)94            PAGES:      2
AUTHOR(S):                                          ADDRESSEE(S):
      Victor Ehrfich/Cfty of Vancouver                      L S. Lobelia/EPA
DESCRIPTION: Letter regarding cleanup activities.

 9. 1.  . .  Vol.1-    1037634    DOC ID:   40546 IMAGED
      DATE:   11/1/94            PAGES:      2
AUTHOR(S):                                          ADDRESSEE(S):
      Aaron A. Odegard/Cfty of Vancouver                  Richard Cyr/Clark County Pubfic Utilities
DESCRIPTION: Letter regarding tire department response incident that occurred about 15 years ago.

 9. 1.  . .  Vol.1 -    1037635    DOC ID:   40547 IMAGED
      DATE:   11/3/94            PAGES:      1
AUTHOR(S):                                          ADDRESSEE(S):
      Mary Beth Hayes/State of Washington Dept. of Ecology    Ann Williamson/EPA
DESCRIPTION: Copy of memo regarding storm water discharge.

 9. 1.  . .  Vol.1 -    1037636    DOC ID:   40548 IMAGED
      DATE:   11/4/94            PAGES:      7
AUTHOR(S):                                          ADDRESSEE(S):
      Clark County Public Works                          EPA
DESCRIPTION: Pubfic works permit to install a conduit across NE 47th Ave.

 9. 1.  . .  Vol.1 -    1037637    DOC ID:   40549  IMAGED
      DATE:   12/15/94            PAGES:      1
AUTHOR(S):                                          ADDRESSEE(S):
      Mary Beth Hayes/State of Washington Dept of Ecology    Jeff Fowfow/Ecotogy & Environment Inc.
DESCRIPTION: Cover letter for drawings of groundwater extraction network.

 9. 1.  . .  Vol.1 -    1037638    DOC ID:   40550  WAGED
      DATE:   1/18/95             PAGES:      5
AUTHOR(S):                                          ADDRESSEE(S):
      Mary Beth Hayes/State of Washington Dept of Ecology    Ann Williamson/EPA
DESCRIPTION: Letter and Information regarding CPU welb installed by PGG.

 9. 1.  . .  Vol.1 •    1037639    DOC ID:   40551  IMAGED
      DATE:   1/19/95             PAGES:      2
ALTTHOR(S):                                          ADDRESSEE(S):
      Ann WItHamson/EPA                               Richard Cyr/Clark County Public Utilities
DESCRIPTION: Request to be added to bimonthly meetings of advisory group.

 9. 1.  . .  Vol.1 •    1037640    DOC ID:   40552 IMAGED
      DATE:   1/31/95             PAGES:      4
AUTHOR(S):                                          ADDRESSEE(S):
      Thomas Boyer/Cfty of Vancouver                     Ann WIHiamsorriEPA
DESCRIPTION: 1995 update on Industrial pretreatment program.

 9. 1.  . .  Vol.1 -    1037641    DOC ID:   40553 IMAGED
      DATE:   2/6/95             PAGES:      3
AUTHOR(S):                                          ADDRESSEE(S):
      Clark County Pubfic Utilities                         Ann Williamson/EPA
DESCRIPTION: Invitation to informational open house on Feb. 7.1995 regarding road improvement project

 9. 1.  .  .  Vol.1 -    1CJ7642    DOC ID:   40554 IMAGED
      DATE:   2/8/95             PAGES:      1
AUTHOR(S):                                          ADDRESSEE(S):
9/23/97                        U.S. Environmental Protection Agency, Region 10      Page      64

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(BIAAR) BOOMSNUB/AIRCO - INTERIM ACTION AOMIN. RECORD INDEX

      Ann Williamson/EPA                              Thomas Boyer/CRy of Vancouver
DESCRIPTION: Cover letter for monthly flow data for January 1895.

 9. 1. . .   Vol.1  -    1037643    DOC ID:  40555 WAGED
      DATE:   3/14/95  -          PAGES:       1
AUTHOR(S):                                           ADDRESSEE(S):
      Rtt Environmental                                Gordon Dawson/Clark County Public Works
DESCRIPTION: Diagram of well construction and unit description.

 9. 1. . .   Vol.1  -    1037644    DOC ID:  40556 IMAGED
      DATE:   5/9/95             PAGES:     17
ALTTHOR(S):                                           ADDRESSEE(S):
      Ann WURamson/EPA                              Samuel Giese/dark County Public Works
DESCRIPTION: Comments on revised environmental Determination of Non Significance.

 9. 1. . .   Vol.1  •    1037645    DOC ID:  40557 IMAGED
      DATE:   5/12/95             PAGES:       1
AUTHOR(S):                                           ADDRESSEE(S):
      Samuel Giese/dark County Public Works              Ann Waiiamson/EPA
DESCRIPTION: Transmittal letter of preliminary construction plans for construction of roadways and storm drains.

 9. 1. . .   Vol.1  -    .1037646    DOC ID:  40558 IMAGED
      DATE:   6/7/95             PAGES:       1
AirTHOR(S):                                           ADDRESSEE(S):
      Ann WflBamson/EPA                              Aaron A, Odegard/City of Vancouver
DESCRIPTION: Cover letter for copies of revisions to O & M manual for groundwater extraction and treatment
              system.

 9. 1. . .   Vol.1  -    1037647    DOC ID:  40559 IMAGED
      DATE:   6/12/95             PAGES:       1
AUTHOR(S):                                           ADDRESSEE(S):
      Elaine Spray/City of Vancouver                       Arm WUBamson/EPA
DESCRIPTION: Ctty pretreatment program personnel update.

 9. 1. . .   Vol.1  -    1037646    DOC ID:  40560 IMAGED
      DATE:   7/7/95             PAGES:       3
AUTHOR(S):                                           ADDRESSEE(S):
      Kimberly Armstrong/Clark County Public Works          Ann Williamson/EPA
DESCRIPTION: Transmittal of GIS data license agreement

 9. 1.  . .  Vol.1  -    1030309    DOC ID:   68027 IMAGED
      DATE:   8/28/95            PAGES:     54
AirrHOR(S):                                           ADDRESSEE(S):
      Btt Environmental                                Charlie Masco/Clark County Public Works
DESCRIPTION: Report titled -Hydraulic Lift Removal at Clark County Public Works".

 9. 1.  . .  Vol.1-    1037649    DOC ID:   40561 WAGED
      DATE:   10/5/95           PAGES:     20
AUTHOR(S):                                           ADDRESSEE(S):
      Elaine Spray/City of Vancouver                      Ann Williamson/EPA
DESCRIPTION: Letter and response letter regarding pretreatment site inspection.

 9. 1.  . .  Vol.1  -    1037650    DOC ID:  40562 IMAGED
      DATE:   10/11/95           PAGES:       3
AUTHOR(S):                                           ADDRESSEE(S):
      Norman Harker/Harker Engineering                  Ann Williamson/EPA
9/23/97                        U.S. Environmental Protection Aaencv. Reaion 10      Paae      85

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(B1AAR) BOOMSNUB/AIRCO - INTERIM ACTION ADMIN. RECORD INDEX

DESCRIPTION:  Infiltration proposals.

 9. 1. . .   Vol.1 -   1037654    DOC ID:  40564 WAGED
      DATE:  1/24/96            PAGES:      5
At/THOR(S):        __                                 ADDRESSEE(S):
      Nancy Hamey/EPA                               Ann WnOamson/EPA
DESCRIPTION:  Memo and December 1094 BPA groundwater monitoring Information.

 9. 1. . .   Vol.1-   1030196    DOC ID:  40797 WAGED
      DATE:  2/2206            PAGES:     39
AUTHOR(S):                                          ADDRESSEE(S):
      Unknown                                       Ann Williamson/EPA
DESCRIPTION:  Transmittal letter wfth attached Storm Water Technical Information Report and six pages of plans.

 9. 1. . .   Vol.1 -   1030205    DOC ID:  66043 IMAGED
      DATE:  9/9/96            PAGES:     78
AUTHOR(S):                                          ADDRESSEE(S):
      Thomas Boyer/Cfty of Vancouver                    Ann Williamson/EPA
DESCRIPTION:  Notice of Intent to Adopt New City Ordinance.

 9. 1. . .   Vol.1.   1030264    DOC ID:  67418 IMAGED
      DATE:  10/15/96           PAGES:      3
AUTHOR(S):                                          ADDRESSEE(S):
      Greg Shafer/Clartc County Public Works               Bemte Zavala/EPA
DESCRIPTION:  Proposal for stormwater management facility.

 9. 1. . .   Vol. 1 -   1030243    DOC ID:  67238 IMAGED
      DATE:  10/22/96           PAGES:    159
AUTHOR(S):                                          ADDRESSEE(S):
      Ann WHRamson/EPA                              Bryan Halbert/Schlecht Construction, Inc.
DESCRIPTION:  Letter regarding revised drainage plans, for Schtocht Commercial Budding and package of
              Information to aid in correspondence with the county.

 9. 1. . .   Vol.1 -   1030307    DOC ID:  68025 WAGED
      DATE:  11/7/96           PAGES:      2
AUTHOR(S):                                          AODRESSEE(S):
      Greg Shafer/Clartc County Public Works               Unknown
DESCRIPTION:  Memorandum regarding NE 78th St stormwater detention fadtty.

 9. 1.  . .   Vol.1 -   1030308     DOC ID:  68026 IMAGED
      DATE:  11/26/96            PAGES:      1
AUTHOR(S):                                  .        ADDRESSEE(S):
      Otto Gatther/Unknown                             Deborah J. Yamamoto/EPA
DESCRIPTION:  Map regarding stormwater infiltration system.

 9. 1.  . .   Vol.1  -   1030701     DOC ID:  70780 IMAGED
      DATE:  4/18/97            PAGES:      7
AUTHOR(S):                                          ADDRESSEE(S):
      PhHtp Gaddis/Clark County Public Works              Unknown
DESCRIPTION: Wetland Assessment and Delineation for NE 78th St at SI Johns Road.

SUB-HEAD:   9. 2.  . .   Vol. 1 -    Discharge Permits

 9. 2.  . .   Vol.1  -    1037652     DOC ID:  40565  IMAGED
      DATE:   5/1/92             PAGES:     21
AUTHOR(S):                                          ADDRESSEE(S):
      Victor Ehnteh/Ctty of Vancouver                     State of Washington Dept of Ecology
 9/23/97                       U.S. Environmental Protection Agency, Region 10     Page      86

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(BIAAR) BOOMSNUB/AIRCO - INTERIM ACTION ADMIN. RECORD INDEX

DESCRIPTION:  Ctty of Vancouver Wastewater Discharge Perm*.

 9. 2. . .   Vol. 1 -    1037653    DOC ID:  40566 WAGED
      DATE:  9/6/94            PAGES:     20
AUTHOR(S):           ~                              ADDRESSEE(S):
      Victor EhrBoh/Cfty of Vancouver                     EPA
DESCRIPTION:  Ctty of Vancouver Wastewater Discharge Permit (transferred from WDOE to EPA).

SUB-HEAD:  9. J.  .  .  Vol. 1 -    PGQ Report

 9. 3. . .   Vol.1-    1037090    DOC ID:  40567 IMAGED
      DATE:  8/31/94            PAGES:    264
AUTHOR(S):                                          ADDRESSEE(S):
      Pacific Groundwater Group                         Clark County Public Utilities
DESCRIPTION:  Results of Hydrogeologte Investigations near Boomsnub/Airco Facilities.    -
9/23/97                       U.S. Environmental Protection Agencv. Reoton 10     Paae      87

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(BIAAR) BOOMSNUB/A1RCO - INTERIM ACTION ADMIN. RECORD INDEX

HEADING:   13. 0. . .       HEALTH ASSESSMENTS

SUB-HEAD:  13. 1.  .  .   Vol.1  -    Correspondence

 13. 1. .  .   Vol.1 -   1037890    DOC ID:  41156  WAGED
      DATE:  2/24/95             PAGES:      3
AUTHOR(S):                                           ADDRESSEE(S):
      Ann WBIlamson/EPA                               Richard Robinson/Agency for Toxic Substances
                                                     and Disease Registry
DESCRIPTION:  EPA comments on draft pubOc health assessment for Boomsnub sfte.

 13. 1. .  .   Vol.1 -   1037891     DOC ID:  41157  IMAGED
      DATE:  3/2/95             PAGES:      8
AUTHOR(S):                                           ADDRESSEE(S):
      Mary B. Hayes/Washington State Department of Ecology   Richard Robinson/Agency for Toxic Substances
                                                     and Disease Registry
DESCRIPTION:  Ecology comments on draft public health assessment for Boomsnub site.

 13. 1. .  .   Vol.1 -   1037892     DOC ID:  41158  IMAGED
      DATE:   3/23/95             PAGES:      1
AUTHOR(S):                                           ADDRESSEE(S):
      Cindy Wind/Washington Department of Health           Ann Williamson/EPA
DESCRIPTION:  Letter requesting information for educational plan being devised by state Dept of Health.

 13. 1. .  .   Vol.1 -   1030206     DOC ID:  66044  IMAGED
      DATE:   8/15/96             PAGES:      2
AUTHOR(S):                                           ADDRESSEE(S):
      Gregory D. Thomas/Agency for Toxic Substances and     Ann Williamson/EPA
      Disease Registry
DESCRIPTION:  E-mail correspondence regarding Boomsnub health education activities.

SUB-HEAD:  13. 2.  .  .  Vol. 1 -    ATSDR Hearth Assessment

 13.2. .  .   Vol.1 -   1037894     DOC ID:  41160  IMAGED
      DATE:   8/3/95             PAGES:     40
AUTHOR(S):                                           ADDRESSEE(S):
      State of Washington Dept of Health                   Ann Williamson/EPA
      Richard Robinson/Agency for Toxic Substances and       Ann WilHamson/EPA
      Disease Registry
DESCRIPTION:  Pubflc Health Assessment for Boomsnub/AJrco.
9/23/97                       U.S. Environmental Protection Agency, Region 10     Page       88

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(BIAAR) BOOMSNUB/AIRCO - INTERIM ACTION ADMIN. RECORD INDEX

HEADING:  14. 0.  .  .        NATURAL RESOURCE TRUSTEES

SUB-HEAD:  14. 1. .  .  Vol. 1 -    Correspondence

 14. 1.  .  .  Vol.1  -   T037896    DOC ID:   41177 IMAGED
      DATE:  2/23/95            PAGES:       1
AUTHOR(S):                                          ADDRESSEES):
      Thor Cutler/EPA                                  Chris Beaverson/NOAA
DESCRIPTION:  Notification of potential damages to natural resources.

 14. 1.  .  .  Vol.1  -   1037897    DOC ID:   41178 WAGED
      DATE:  2/23/95            PAGES:       1
AUTHOR(S):                                          ADDRESSEE(S):
      Thor Cutler/EPA                                  Charles S. PoGtyka/U. S. Department of Interior
DESCRIPTION:  Notification of potential damages to natural resources.

 14. 1.  .  .  Vol.1  -   1037898    DOC ID:   41180 IMAGED
      DATE:  4/7/95             PAGES:       2
AUTHOR(S):                                          ADDRESSEE(S):
      Russell D. PetersonAJSFWS                        Thor Cutler/EPA
DESCRIPTION:  Acknowledgement of receipt of notice of potential damages to natural resources.

 14. 1.  .  .  Vol.1  -   1037899    DOC ID:   41183 IMAGED
      DATE:  5/12795            PAGES:       1
AUTHOR(S):                                          ADDRESSEE(S):
      Ron Eggers/Bureau of Indian Affiars                  Thor Cutler/EPA
DESCRIPTION:  Response to potential damages notice.
9/23/97                       U.S. Environmental Protection Aaencw Rnninn 10     Pono

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(BIAAR) BOOMSNUB/AIRCO - INTERIM ACTION ADMIN. RECORD INDEX

HEADING:  16.  0.  .  .        PUBUC PARTICIPATION

SUB-HEAD:  U. 2. . .  Vol. 1 -   Community Relations Plan

 16. 2.  .  .  Vol. 1 •   1037945    DOC ID:  41665  IMAGED
      DATE:  10/18/94"          PAGES:     15
AimHOR(S):                                         ADDRESSEE(S):
      Jean Baker/EPA                                Unknown
DESCRIPTION:  Community Relations Plan.

 16.2.  .  .  Vol.1-   1030897    DOC ID:  72411  IMAGED
      DATE:  5/12/97            PAGES:      3
AUTHOR(S):                                         ADDRESSEE(S):
      EPA                                         Unknown
DESCRIPTION:  Revised Community Relations Plan.

SUB-HEAD:  16. 3. . .  Vol.1 -   Public Notices

 16.3.  .  .  Vol.1 -   1037946    DOC ID:  41666  IMAGED
      DATE:                    PAGES:      1
AUTHOR(S):                                         ADDRESSEE(S):
      Clark County Citizen's Hazardous Waste Task Force     Unknown
DESCRIPTION:  Notice requesting public involvement In protecting drinking water.

SUB-HEAD:  16. 6. . .  Vol. 1 -   Fact Sheets/Press Releases

 16.5.  .  .  Vol.1 -   1037947    DOC ID:  41667  IMAGED
      DATE:  5/1/90            PAGES:      2
AUTHOR(S):                                         ADDRESSEE(S):
      State of Washington Dept of Ecology                Unknown
DESCRIPTION:  Dept of Ecology Fact Sheet

 16. 5.  .  .  Vol. 1 -   1037948    DOC ID:  41668  IMAGED
      DATE:  7/1/92            PAGES:      3
AITTHOR(S):                                         ADDRESSEE(S):
      State of Washington Dept of Ecology                 Unknown
DESCRIPTION:  Dept of Ecology Fact Sheet

 16.5.  .  .  Vol.1-   1037949    DOC ID:  41669 IMAGED
      DATE:   3/1/93            PAGES:      4
ALTTHOR(S):                                          ADDRESSEE(S):
      State of Washington Dept of Ecology                 Unknown
DESCRIPTION:  Dept. of Ecology Fact Sheet on Alrco Gases.

 16.5.  .  .  Vol.1-   1037950    DOC ID:  41670 IMAGED
      DATE:   9/1/93            PAGES:      5
AITTHOR(S):                                          ADDRESSEE(S):
      State of Washington Dept of Ecology                 Unknown
 DESCRIPTION:  Boomsnub/Pacffic Northwest Plating Fact sheet

 16. 5.  .  .  Vol. 1 -   1037951    DOC ID:   41671 IMAGED
      DATE:  12/1/93           PAGES:       4
 AUTHOR(S):                                          ADDRESSEE(S):
      State of Washington Dept of Ecology                 Unknown
 DESCRIPTION:  Dept of Ecology Fact Sheet regarding Alrco Gases.
 9/23/97                      U.S. Environmental Protection Agency, Region 10     Page       90

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       BOOMSNUB/AIRCO - INTERIM ACTION ADMIN. RECORD INDEX

 16. 5.  . .  Vol. 1 -   1037952   DOC ID:  41672  IMAGED
      DATE:  12/21/93          PAGES:      1
AUTHOR(S):                                         ADDRESSEE(S):
      State of WttNngtmfDept of Ecology                 Unknown
DESCRIPTION:  Envlro-News Tips: "Alrco In Vancouver to conduct Hazardous Waste Cleanup".

 16. 5.  . .  Vol. 1 -   1037953   DOC ID:  41673  IMAGED
      DATE:  1/1/94            PAGES:      1
AUTHOR(S):                                         ADDRESSEE(S):
      EPA                                          Unknown
DESCRIPTION:  National Priorities List Identifying Boomsnub as a top priority.

 16. 5.  . .  Vol.1 -   1037954   DOC ID:  41674  IMAGED
      DATE:  1/18/94           PAGES:      7
AUTHOR(S):                                         ADDRESSEE(S):
      EPA                                        - Unknown
DESCRIPTION:  EPA News Release regarding proposal to add Boomsnub to NPL.

 16. 5.  . .  Vol. 1 -   1037955   DOC ID:  41675  WAGED
      DATE:  4/12/94           PAGES:      2
AUTHOR(S):                                         ADDRESSEE(S):
      U. S. Attorneys Office                            Unknown
DESCRIPTION:  Memorandum regarding EPA and DOE response to press inquiries regarding Boomsnub
              investigation.

 16. 5.  . .  Vol. 1 -   1037956   DOC ID:  41676  IMAGED
      DATE:  5/18/94           PAGES:      2
AUTHOR(S):                                         ADDRESSEE(S):
      EPA                                          Unknown
DESCRIPTION:  Superfund Fact Sheet on Boomsnub/Alrco site.

 16. 5.  . .  Vol. 1 -   1037957   DOC ID:  41677  WAGED
      DATE:  5/20/94           PAGES:      1
AirmOR(S):                                         ADDRESSEE(S):
      EPA                                          Unknown
DESCRIPTION:  EPA News Release regarding order to cease operations at Boomsnub.

 16. 5.  .  .  Vol. 1 •   1037958   DOC ID:  41678  IMAGED
      DATE:  6/17/94           PAGES:      1
AUTHOR(S):                                         ADDRESSEE(S):
      EPA                                          Unknown
DESCRIPTION:  EPA News Release regarding briefing about removal operation.

 16. 5.  .  .  V«L 1 -   1037959   DOC ID:  41679  IMAGED
      DATE:  6/20/94           PAGES:      2
AUTHOR(S):                                         ADDRESSEE(S):
      EPA                                          Unknown
 DESCRIPTION:  Superfund Fact Sheet about Boomsnub removal action.

 16.5.  .  .  Vol.1-   1037960    DOC ID:  41680  IMAGED
      DATE:   7/28/94            PAGES:      2
 AUTHOR(S):                                .        ADDRESSEE(S):
      EPA                                         Unknown
 DESCRIPTION:  Superfund Fact Sheet about Boomsnub removal activities.
                             U.S. Environmental Protection Aaencv. Realon 10    Pane       01

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(BIAAR) BOOMSNUB/AJRCO - INTERIM ACTION ADMIN. RECORD INDEX

 16.5.  .  .  VoU -   1037961    DOC ID:  41681  WAGED
      DATE:  8/30/94            PAGES:      2
ALTTHOR(S):                                         ADDRESSEE(S):
      EPA                                          Unknown
DESCRIPTION:  Superfund Fact Sheet about progress of Boomsnub removal activates.


 16. 5.  .  .  Vol. 1 -   1037962    DOC ID:  41682  IMAGED
      DATE:  1/25/95            PAGES:      2
AUTHOR(S):                                         ADDRESSEE(S):
      EPA                                          Unknown
DESCRIPTION:  Superfund Fact Sheet about completion of Boomsnub removal activities.


 16. 5.  .  .  Vol. 1 -   1037964    DOC ID:  41684  IMAGED
      DATE:  2/17/95            PAGES:      4
AUTHOR(S):                                         ADDRESSEE(S):
      Helen J. Bainner/U. S. Department of Justice           Unknown
DESCRIPTION:  Press Release regarding indictment of Boomsnub Corporation and corporate officials.


 16.5.  .  .  Vol.1-   1037965    DOC ID:  41685  IMAGED
      DATE:  4/1/95            PAGES:      1
AUTHOR(S):                                         ADDRESSEE(S):
      EPA                                          Unknown
DESCRIPTION:  Update to National Priorities Ust


 16. 5.  .  .  Vol.1 -   1037963    DOC ID:  41683  IMAGED
      DATE:  4/6/95            PAGES:      2
AUTHOR(S):                                         ADDRESSEE(S):
      EPA                                          Unknown
DESCRIPTION:  Superfund Fact Sheet about start of RI/FS phase.


 16.5.  .  .  Vol.1-   1037966    DOC ID:  41686  IMAGED
      DATE:  4/25/95            PAGES:      3
AUTHOR(S):                                         ADDRESSEE(S):
      EPA                                          Unknown
DESCRIPTION:  Fact Sheet advising of addition of Boomsnub to National Priorities Ust


 16.5.  .  .  Vol. 1 -   1037967    DOC ID:  41687  IMAGED
      DATE:  4/25/95            PAGES:      2
AUTHOR(S):                                         ADDRESSEE(S):
      EPA                                          Unknown
DESCRIPTION:  EPA News Release regarding addition of sites to National Priorities Ust

 16.5.  .  .  Vol.1 -   1037968    DOC ID:  41688 IMAGED
      DATE:   8/29/95            PAGES:       1
AUTHOR(S):                                         ADDRESSEE(S):
      Bob Jacobson/EPA                               Unknown
DESCRIPTION:  Press Release regarding court appearances of Boomsnub defendants.

 16.5.  .  .  Vol.1 -   1037969    DOC ID:  41689 IMAGED
      DATE:   10/6/95           PAGES:       2
AUTHOR(S):                                          ADDRESSEE(S):
 9/23/97                       U.S. Environmental Protection Agency. Region 10     Page      92

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(BIAAR) BOOMSNUB/AIRCO - INTERIM ACTION AOMIN. RECORD INDEX

      EPA                                           Unknown
DESCRIPTION:  Superfund Fact Sheet regarding second phase of ground water sampling at Boomsnub.

 16. 5.  .  .  Vol. 1 -   1030091    DOC ID:   41958 IMAGED
      DATE:  6/27/96            PAGES:      2
AUTHOR(S):                                          ADDRESSEE(S):
      EPA                                           Unknown
DESCRIPTION:  Superfund Fact Sheet for Boomsnub/BOC Gases.

 16. 5.  .  .  Vol. 1 -   1030440    DOC ID:   69669 IMAGED
      DATE:  3/24/97            PAGES:      2
AUTHOR(S):                                          ADORESSEE(S):
      EPA                                           Unknown
DESCRIPTION:  Fact Sheet regarding Boomsnub/BOC Gases site evaluation.

SUB-HEAD:  16.9. .  .   Vol.1 -   Newspaper Articles

 16. 9.  .  .  Vol. 1 -   1037970    DOC ID:   41702 IMAGED
      DATE:  1/19/94            PAGES:      1
AUTHOR(S):                                          ADDRESSEE(S):
      The Seattle Times                                Unknown
      Tacoma News Tribune                             Unknown
DESCRIPTION:  Articles about Boomsnub nomination for Superfund.

 16. 9.  .  .  Vol. 1 -   1037971    DOC ID:   4170S IMAGED
      DATE:  1/19/94            PAGES:      1
AUTHOR(S):                                          ADDRESSEE(S):
      The Seattle Times                                Unknown
DESCRIPTION:  Seattle Times/AP article about about Boomsnub nomination for Superfund.

 16. 9.  .  .  Vol.1 -   1037972    DOC ID:   41706 IMAGED
      DATE:  1/18/94            PAGES: -     1
AUTHOR(S):                                          ADDRESSEE(S):
      Bruce Westfall/The Columbian                      Unknown
DESCRIPTION:  Article regardtog Superfund designation.

 16. 9.  .  .  Vol. 1 -   1037973    DOC ID:   41707 IMAGED
      DATE;  1/20/94            PAGES:      3
AUTHOR(S):                                          ADDRESSEE(S):
      Loretta CaUaharvThe Columbian                     Unknown
DESCRIPTION:  Arflde: -Boomsnub Cleanup Gets RolDng.-

 16. 9.  .  .  Vol. 1 -   1037974    DOC ID:   41710 IMAGED
      DATE:  5/28(94            PAGES:      1
AUTHOR(S):                            ,              ADDRESSEE(S):
      Shlrleen Hott/Oregonian     .        '     .        Unknown
DESCRIPTION:  Article: -EPA Flexing Its Muscles'

 16. 9.  .  .  Vol. 1 -   1030009    DOC ID:   41806 IMAGED
      DATE:  7/22/94            PAGES:      1
AUTHOR(S):                              .            ADDRESSEE(S):
      Michael Rose/The Business Journal                  Unknown
DESCRIPTION: Article: EPA Orders Boomsnub to Evacuate Contaminated Site.

 16.9.  .  .   Vol.1-   1030011    DOC ID:   4t608 IMAGED
      DATE:   8/25/94            PAGES:      2
AUTHOR(S):                                          ADDRESSEE(S):
 9/23/97                       U.S. Environmental Protection Aoencv. Reoion 10     PMM      03

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(BIAAR) BOOMSNUB/AIRCO - INTERIM ACTION ADMIN. RECORD INDEX

      Loretta Callahan/The Columbian                    Unknown
DESCRIPTION:  Article. -Who WHI Pick up Tab for Boomsnub Cleanupr

 16.9.  .  .  Vol.1 -   1030010   DOC ID:   41807 IMAGED
      DATE:  9/30/94            PAGES:       3
AUTHOR(S):           ~                             ADDRESSEE(S):
      Thor Cutler/EPA                                 Bub Lobelle/EPA
DESCRIPTION:  Faxed copy of The Columbian article "Chemicals Uncovered at Boomsnub."

 16.9.  .  .  Vol.1 -   1030012   DOC ID:   41809 IMAGED
      DATE:  1/25/95            PAGES:       2
AUTHOR(S):                                          ADDRESSEE(S):
      Richard Cyr/Clark County Public Utilities               Ann Williamson/EPA
DESCRIPTION:  Faxed article, "Hazardous-waste Case Plea: Gutty".

 16.9.  .  .  Vol.1 -   1030013   DOC ID:   41810 IMAGED
      DATE:  4/5/95            PAGES:       1
AUTHOR(S):-                                         ADDRESSEE(S):
      Oregonian                                      Unknown
DESCRIPTION:  Article, "Sink Size Stirs Storm".

 16.9.  .  .  Vol.1-   1030014    DOC ID:   41811  IMAGED
      DATE:  10/13/95           PAGES:       1
AUTHOR(S):                                          ADDRESSEE(S):
      Loretta Callahan/The Columbian                    Unknown
DESCRIPTION:  Article, "New Fears Surface at Boomsnub".

 16.9.  .  .  Vol.1 -   1030015    DOC ID:   41812  IMAGED
      DATE:  3/17/96          .  PAGES:       1
AUTUOR(S):                                          ADORESSEE(S):
      Loretta Callahan/The Columbian                    Unknown
DESCRIPTION:  Artde, "Boomsnub Officials WBI Serve No JaJ Time'.

 16.9.  .  .  Vol.1 -   1030375   DOC ID:   68772  IMAGED
      DATE:  2/16/97            PAGES:       3
AUTHOR(S):                                          ADDRESSEE(S):
      Susan Farmer/The Columbian                       Unknown
DESCRIPTION:  Newspaper article, "A Flair Wtth Air" regarding expansion efforts at BOC Gases.

SUB-HEAD:  16.10.  .  .   Vol.1 •   Comments on Interim Action Proposed Plan

 16.10. .  .  Vol.1 -  1030860   DOC ID:   72076 IMAGED
      DATE:  7/30/97            PAGES:       1
AUTHOR(S):                                          ADDRESSEE(S):
      Douglas BaHou/NE Hazel Dell Neighborhood Association  Deborah J. Yamamoto/EPA
DESCRIPTION:  Letter regarding Proposed Plan for Interim Action.
9/23/97                       U.S. Environmental Protection Agency. Region 10     Page       94

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(BIAAR) BOOMSNUB/A1RCO - INTERIM ACTION AOMIN. RECORD INDEX

HEADING:  18. 0.  .  .        GUIDANCE/REFERENCE MATERIAL

SUB-HEAD:  11. 3. . .  Vol. 1 -   Technical Reference Materitl

 18. 3.  .  .  Vol. 1  -  "1030077    DOC ID:  41935  IMAGED
      DATE:                    PAGES:     216
AUTHOR(S):                                          ADDRESSEE(S):
      OnStte Environmental. Inc.                         Unknown
DESCRIPTION:  Material Safety Data Sheets (MSDS) Organizer Glossary of Temrw. MSDS Request Form, Sample
              MSD Sheet

 18. 3.  .  .  Vol.1-  1030078    DOC ID:  41936  WAGED
      DATE:   9/26/85            PAGES:      3
AUTHOR(S):                                          ADDRESSEE(S):
                                                    Unknown
DESCRIPTION:  Material Safety Data Sheet on Trichloroethane.

 18. 3.  .  .  Vol. 1  -  1030080    DOC ID:  41938  WAGED
      DATE:   1/1/91             PAGES:     16
AUTHOR(S):                                          ADDRESSEE(S):
      Robert S. Kerr Environmental Research Lab             Unknown
DESCRIPTION:  A/tide: "Processes Affecting the Remediation of Chromium-Contaminated Sites".

 18. 3.  .  .  Vol.1  -  1030082    DOC ID:  41941  IMAGED
      DATE:   3/22/94            PAGES:      1
AUTHOR(S):                                          ADDRESSEE(S):
      ResinTech, Inc.                                  Unknown
DESCRIPTION:  Material Safety Data Sheet regarding resins.

 18.3.  .  .  Vol.1-  1030270    DOC ID:  67430  MAGED
      DATE:   5/1/95            PAGES:      3
AUTHOR(S):                      '                    ADORESSEE(S):
      Northwest Cone Exploration                         EPA
DESCRIPTION:  Brochure regarding cone penetrometer testing truck.
9/23/97                       U.S. Environmental Protection Aoencv. Reaion 10     Paaa      05

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                                  STATE OF WASHINGTON

                           DEPARTMENT OF ECOLOGY
                        P.O. Box 47600 • Olympia. Washington 98504-7600
                   (360) 407-6000 •  TOO Only (Hearing Impaired) (360) 4O7-6006
September 24, 1997


Mr. Chuck Clarke
Regional Administrator
United States Environmental Protection Agency, Region 10
1200 Sixth Avenue
Seattle, Washington 981Q1

Dear

The Washington State Department of Ecology has reviewed the Interim Record of Decision
(ROD) for the Site-Wide Ground Water Operable Unit of the Boomsnub/Airco (BOC Gases)
Supertund Site located in Clark County, Vancouver, Washington.  We understand that this action
is an administrative procedure needed to secure long-term funding (Remedial Action Funds). We
concur with the following selected remedies, described in Section  10 of the document:

•  Operation and maintenance of the existing extraction/treatment system;

•  Installation of additional monitoring wells near the leading edge of the plume to determine the
   need for more extraction wells, and connection of additional wells to the extraction network, if
   necessary;

•  Upgrade some extraction wells and vaults as necessary to prevent infiltration of water during
   storm events; and

•  Acquisition or construction of office space and storage area for the extraction/treatment and
   telemetry systems, new and used resin, as well as for tools, parts and equipment needed for
   operation and maintenance of the system.

We recognize that this is an interim measure which does not address the soil operable units and
that contaminants will remain on-site. The selected remedies are consistent with the Model Toxics
Control Act Regulation (Chapter 173-340 WAC); however, revised and/or additional Applicable
or Relevant ana Appropriate Requirements (ARARs) will be identified by the Department of
Ecology  for the final ROD.

We are looking forward to continued cleanup activities at this site.

Sincerely,
Mary E. Burg, Program Manager
Toxics Cleanup Program

MEB:cp

cc:     Dan Alexanian, Toxics Cleanup Program, SW Regional Office, Ecology
        Site file

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