EPA/ROD/R01-98/131
                                    1998
EPA Superfund
     Record of Decision:
     BENNINGTON MUNICIPAL SANITARY LANDFILL
     EPA ID: VTD981064223
     OU01
     BENNINGTON, VT
     09/29/1998

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EPA 541-R98-131

                               DECLARATION FOR THE
                                RECORD OF DECISION

SITE NAME AND LOCATION

Bennington Landfill
Bennington, Vermont
CERCLIS ID No. VDT981064223

STATEMENT OF PURPOSE

This decision document presents the selected No Further Action decision for the Bennington Landfill Site
(the "Site"), located in Bennington, Vermont. This document was developed in accordance with the
Comprehensive Environmental Response, Compensation, and Liability Act of 1980  (CERCLA) ,  as amended by the
Superfund Amendments and Reauthorization Act of 1986  (SARA), and to the extent practicable, the National
Contingency Plan  (NCP); 40 CFR Part 300 et seg. (1990).  The Director of the Office of Site Remediation
and Restoration for Region I of the United States Environmental Protection Agency  (EPA)  has been
delegated the authority to approve this Record of Decision  (ROD).

The State of Vermont has concurred with the No Further Action decision.

STATEMENT OF BASIS

This decision is based on the administrative record compiled for the Site which was developed in
accordance with Section 113(k)  of CERCLA. The administrative record is available for public review at the
Office of the Town Manager in Bennington, Vermont and at the EPA Region I Office of Site Remediation and
Restoration Record Center in Boston, Massachusetts. The administrative record index (attached as Appendix
G to the ROD) identifies each of the items which comprise the administrative record upon which the
selection of the remedial action is based.

DESCRIPTION OF THE SELECTED REMEDY

EPA has determined that No Further Action is necessary to address the contamination at the Site. EPA will
perform 10 years of additional monitoring of the groundwater, surface water, and sediments starting with
the completion of the NTCRA.

DECLARATION

EPA has determined that no further remedial action is necessary at this Site. Previous response actions
implemented as part of a non-time-critical (NTCRA) removal action have adeguately controlled the
principle and low-level threats at the Site.  The NTCRA controls include: excavation and placement of PCB
contaminated soils and sediments in the landfill;  a multi-barrier landfill cap over the entire area of
solid waste disposal; diversion of upgradient groundwater using an interceptor trench; collection and
treatment of leachate; and institutional controls preventing future Site use. A consent decree has been
entered into between EPA and the PRPs that will assure the long-term operation and maintenance of the
NTCRA. In addition, the groundwater at the Site has been reclassified by the State of Vermont to further
restrict future use.

As this is a decision for No Action, the statutory reguirements of CERCLA Section 121 for remedial
actions are not applicable. However, EPA does intend to perform 5-year reviews of the protectiveness of
the cleanup actions taken at the Site as a policy five year review.

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                                      NEW ENGLAND REGION

                                 RECORD OF DECISION SUMMARY

                                            FOR THE

                              BENNINGTON LANDFILL SUPERFUND SITE

                                        September 1998

                                        TABLE  OF CONTENTS

Contents                                                                    Page Number

I.    SITE NAME, LOCATION AND DESCRIPTION	      1

II.   SITE HISTORY & ENFORCEMENT ACTIVITIES	      1

     A. Land Use & Response History	      1
     B. Enforcement History	      2

III.  COMMUNITY PARTICIPATION	      3

IV.   SCOPE & ROLE OF OPERABLE UNIT OR RESPONSE ACTION	      4

V.   SUMMARY OF SITE CHARACTERISTICS	      4

VI.  SUMMARY OF SITE RISKS	      10

VIII.  DESCRIPTION OF NO FURTHER ACTION DECISION	      19

VIII.  DOCUMENTATION OF NO SIGNIFICANT CHANGES	      19

VI11.  STATE ROLE	      20

    APPENDIX A - Tables and Figures
    APPENDIX B - 1995 Risk Assessment Statistical Summary Tables and Risk Calculations
    APPENDIX C - 1997 Risk Assessment Statistical Summary Tables and Risk Calculations
    APPENDIX D - State Concurrence Letter
    APPENDIX E - Public Hearing Transcript
    APPENDIX F- Responsiveness Summary
    APPENDIX G- Administrative Record Index

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                                    ROD DECISION SUMMARY
                                       September 1998

I. SITE NAME, LOCATION AND DESCRIPTION

The Site is the Bennington Municipal Landfill Superfund Site and will hereafter be referred to as the
"Site". The Site is located on the north side of Houghton Lane in the Town of Bennington, Vermont. The
surrounding area is mixed rural undeveloped land and residential.

The Site consists of a 15 acre solid waste landfill and the surrounding areas impacted by the landfill.
The impacted areas include the overburden ground water, surface water, and sediments. There is an active
transfer station located on Town property in the southeastern portion of the Site. An active sand and
gravel pit is located north of the Site, a wetlands serving as the headwaters for Hewitt Brook is located
east of the Site, and residential areas are south, and U.S. Route 7 to the west. See Figures 1 and 2 of
this ROD for the Site location and general Site features.

A more complete description of the Site can be found in the 1997 Remedial Investigation Report at pages
1-1 and 1-2.

II. SITE HISTORY AND ENFORCEMENT ACTIVITIES

A. Land Use and Response History

The Site consists primarily of a 15 acre municipal solid waste landfill and associated drainage pond
situated in an 85 acre parcel owned by the Town of Bennington, Vermont. Prior to the landfill, the
location of the Site was a sand and gravel pit. The areas to the north and east of the Site are still
actively mined for soil materials. The area directly east of the Site is wetland/woodland that is
unlikely to be developed. The others areas surrounding the Site are residential.

The landfill began operation in 1969 and received commercial, residential, and industrial solid and
liguid wastes. The Town of Bennington leased the property for use as a landfill until 1985, when it
purchased the property. In April 1987, the landfill was closed and the Town established a transfer
station adjacent to the location of the landfill.

Throughout the entire period of operation (1969-1987)  residential, industrial, and commercial waste was
disposed in the landfill. One portion of the landfill was used for the disposal of liguid wastes from
1969 - 1975. This area, know as the "lagoon", was covered with debris and is within the limits of the
current solid waste mass. A drainage system was constructed within the landfill in 1976 to lower the
groundwater level in the waste. The outlet for this drainage system was a pipe whose discharge was
responsible for the creation of the drainage pond. The Town of Bennington performed a solid waste closure
of the landfill in 1990 in accordance with the Vermont Solid Waste Program. Collection of the underdrain
discharge was not included in the solid waste closure.

There were no zoning or other land use restrictions in place at the start of the remedial investigation/
feasibility study (RI/FS) that would preclude future residential use of the Site area. A solid waste
transfer station and recycling facility are located adjacent to the landfill. The remaining area was used
periodically by recreational off-road vehicles.

In December 1994, EPA signed an Action Memorandum to initiate a non-time-critical removal action
(NTCRA) at the Site to address the source of contamination. The major components of the NTCRA are:

       •      construction of a multi-barrier landfill cap over the entire waste mass;

       •      construction of an upgradient  interceptor trench to divert groundwater upgradient of the
              landfill around the waste;

       •      construction of a leachate collection and treatment system to collect the discharge from
              the underdrain discharge pipe  and treat  that water prior to discharge;  and

       •      excavation and consolidation of sediments and soils with PCB concentrations above 1 mg/kg.

The NTCRA also included institutional controls to prevent future use of the Site. EPA entered into an
Administrative Order with the potentially responsible parties  (PRPs) for the design of the NTCRA in 1996.
A Consent Decree was entered in August 1997 that covers the construction and long-term operation and
maintenance of the NTCRA. The institutional controls reguired by the NTCRA were established and
implemented in early 1998. To date, the interceptor trench, leachate collection and treatment system,

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institutional controls, and the PCB excavation have been completed. All construction activities for the
NTCRA are expected to be completed by November 1998.

A more detailed description of the Site history can be found in the Remedial Investigation Report at
pages 1-2 through 1-8. A more detailed description of the work performed under the NTCRA can be found in
the Summary Assessment Report.

B. Enforcement History

In March 1991 EPA notified approximately 25 parties of their potential liability with respect to the
Site, such parties either owned or operated the Site, generated wastes that were shipped to the Site,
arranged for the disposal of wastes at the Site,  or transported wastes to the Site. Negotiations
commenced with these PRPs in March 1991 regarding the settlement of the PRP's liability and
responsibility for costs at the Site.

These PRPs formed a steering committee and substantive negotiations occurred with respect to the
performance of the RI/FS. EPA entered into an Administrative Order by Consent with 12 PRPs in June 1991.
An Administrative Agreement for Cost Recovery was also reached with the same 12 PRPs.

An additional 16 PRPs were issued a notice of potential liability in November 1994. Negotiations with
respect to the PRP performance of the NTCRA began in July 1995. The PRPs formed a steering  committee and
additional substantive negotiations took place. In November 1996, EPA reached agreement with 5 PRPs
regarding the performance of the NTCRA design. In August 1997, EPA finalized a Consent Decree with EPA,
Vermont, and 19 PRPs regarding the construction activities, long term operation and maintenance, and
institutional controls reguired by the Action Memorandum for the NTCRA.

The PRPs have been active in the remedy selection process for this Site. The PRPs have prepared all of
the major Site documents and substantive discussions have been held between EPA and the PRPs regarding
numerous technical issues. EPA responded to all PRP comments submitted regarding the NTCRA. No PRP
comments were received regarding the current action.

III. COMMUNITY PARTICIPATION

Throughout the Site's history, community concern and involvement has been low. EPA has kept the community
and other interested parties apprized of the Site activities through informational meetings, fact sheets,
press releases and public meetings.

During April 1992, EPA released a community relations plan which outlined a program to address community
concerns and keep citizens informed about and involved in activities during remedial activities.

On July 14, 1994, EPA released a fact sheet describing a proposed early cleanup action at the Site. On
July 21, 1994 EPA held a public meeting to present a proposed early response action at the Site and to
provide an update with respect to the results of the RI/FS. The early response action involved the use of
EPA NTCRA authority to control the source of the contamination at the Site. EPA held a 30-day public
comment period regarding the proposed NTCRA from August 15,1994 to September 15, 1994. EPA held a public
hearing on September 13, 1994. An Action Memorandum documenting the selection of the NTCRA, including a
Response to Comments, was signed December 19, 1994. A public information fact sheet was released in
September 1997 to describe the NTCRA after completion of the design phase and in anticipation of the
construction activities The September 1997 fact sheet also provided an update of the RI/FS. A public
meeting was held in September 1997 to answer any guestions regarding Site activities. Another fact sheet
was released in May 1998 to further update the NTCRA construction program and the RI/FS activities.

On July 20, 1998, EPA made the administrative record available for public review at EPA's offices in
Boston and at the Bennington Town Manager's Office. EPA published a notice and brief analysis of the
Proposed Plan in the Bennington Banner on July 8, 1998, and made the plan available to the public at the
Bennington Town Manager's Office.

On July 21, 1998, EPA held an informational meeting to discuss the results of the Remedial Investigation
and to present the Agency's Proposed Plan. Also during this meeting, the Agency answered guestions from
the public. From July 22, 1998 to August 21, 1998, the Agency held a 30-day public comment period to
accept public comment on the alternatives presented in the Proposed Plan and on any other documents
previously released to the public. On August 11,  1998 the Agency held a public meeting to discuss the
Proposed Plan and to accept any oral comments. A transcript of this meeting is included as Appendix E.

No public comments were received at the public hearing or during the comment period. The State of Vermont
indicated an intent to concur with the proposed action during the August 11 public hearing.

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IV. SCOPE AND ROIiE OF OPERABLE UNIT OR RESPONSE ACTION

The selected remedy is the second and final cleanup decision by EPA for the Site. The first cleanup
decision was the Action Memorandum for the NTCRA. The NTCRA was designed to control the source of the
groundwater, surface water, and sediment contamination. The Action Memorandum selecting the NTCRA was
signed December 1994. A Consent Decree to implement the NTCRA was signed by EPA, VT DEC, and 19 PRPs in
August 1997. The sediment excavation and consolidation, up-gradient interceptor trench, and leachate
collection and treatment system components of the NTCRA were completed in 1997. Construction of the
multi-barrier landfill cap was initiated in May 1998 and should be completed in November 1998.
Institutional controls restricting future use of the Site are in place. These restrictions prohibit
future use of the groundwater at the Site and restrict future development. The Consent Decree also
requires the PRPs to maintain the landfill cap and leachate treatment system as well as the institutional
controls.

The action  (No Further Action) selected by this ROD represents the final Site action and assumes the
successful implementation and maintenance of the NTCRA. Assuming the NTCRA is complete, an analysis of
the risk for the pathways not addressed by the NTCRA indicates that no additional action was necessary at
the Site.  As a result, a Feasibility Study Report was not prepared. In place of the Feasibility Study
Report, a Summary Assessment Report was prepared to provide supporting information for the selected
action. The Summary Assessment Report is part of the Administrative Record and was made available for
public review as part of the comment period. See Figure 3 of this ROD for a flow chart of the Site
activities.

V. SUMMARY OF SITE CHARACTERISTICS

A remedial investigation (RI) was performed at the Site from 1991 to 1997. The RI Report received final
approval from EPA in December 1997. Most of the field work and data collection occurred from 1991 - 1994
A pre-RI field investigation program was performed in December 1991. This program included the use of
geophysical techniques, field observations, and field screening using a mobile laboratory to better focus
the RI Work Plan. From September 1992 to August 1993, the first major RI field program  (Phase 1A of the
RI) was performed to characterize the Site. Using the data collected from the Phase 1A investigations, a
Phase IB investigations was performed from April 1994 to June 1994, A total of 387 groundwater samples,
31 leachate and associated soil samples, 69 sediment samples, 70 soil samples, 46 surface water samples,
and 33 ambient air samples were obtained as part of the RI.

The first draft of the RI Report was prepared in 1994 based upon the data collected in these three field
programs,  Following the 1994 decision to initiate the NTCRA and based upon concerns regarding the
groundwater data, low-flow sampling was performed at the Site from 1994-1997. The low-flow data collected
from 1994-1997 was not included in the final RI Report released in December 1997. The low-flow
groundwater data and additional surface water sampling data was documented in a series of monitoring
reports. This data was summarized in the Summary Assessment Report and the June 1997 Risk Assessment. The
significant findings of the Remedial Investigation are summarized below.

A.     Soil

The Presumptive Remedy for Municipal Landfill Sites was used at this Site. Therefore, EPA did not
require sampling of the surface or subsurface soils within the landfill limits. Surface sod samples were
obtained from areas surrounding the landfill and leachate outbreaks within the landfill limits. See
Figure 4 of this ROD for the location of surface soil and sediment samples.

Low levels of volatile organic compounds (xylene and toluene), pesticides  (gamma-chlordane, 4,4'-DDE,
endosulfan II, and dieldrin), semi-volatile organic compounds (DEHP) , PCBs (up to 11 mg/kg), and metals
were detected in the soils surrounding the landfill. As described later in the risk section, PCBs were
the only constituents of concern based upon the risk assessment. The highest levels of PCBs were detected
in the soils at the edge of the drainage pond. As required by the Action Memorandum, all soils and
sediments with PCB concentrations above 1 mg/kg were excavated as part of the NTCRA and have been placed
under the cap. The 1 mg/kg cleanup level was based upon protection of human health and the environment.
All non-PCB constituents were detected at very low concentrations. See section 2.2.7 of the RI for a
detailed discussion of the soil sampling activities and section 4.2 for a discussion of the nature and
extent of contamination.

B.     Groundwater

There are two groundwater systems at the Site. The shallow system is comprised of a surficial sand and
gravel unit that ranges in thickness from 7 to 29 feet. The saturated thickness of the sand and gravel
unit increases with the thickness of the unit. See Figure 5 of this ROD for a cross-section of the Site

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geology. The surficial sand and gravel unit is underlain by a dense till. This unit was consistently dry
during drilling and has been characterized as a confining layer. The till layer thickness ranges from 0
feet west of the landfill to 530 feet east of the landfill.

The bedrock and a deep sand and gravel unit represent the second water bearing formation at the Site.
This unit is separated from the surficial sand and gravel unit by the till layer. Bedrock is exposed in
several locations upgradient of the landfill limiting the horizontal extent of the surficial sand and
gravel unit.

Groundwater flow in the surficial sand and gravel unit is predominantly west to east with the headwaters
of Hewitt Brook serving as a discharge zone for the groundwater. This is confirmed by the pattern of
groundwater contamination. See Figure 6 of this ROD for the area of groundwater contamination and Figure
7 for the location of monitoring wells.

The surficial sand and gravel unit has been impacted by the landfill. Volatile organic compounds,
including vinyl chloride, chloroethane, 1,1 dichloroethene, 1,2 dichloroethene, 1,1,1 trichloroethane,
trichloroethene, methylene chloride, and benzene, and several metals (barium and manganese) have been
detected at elevated levels.

The surficial contamination extends from under the landfill to area east of the landfill where the
groundwater recharges into a wetland that serves as the headwaters for Hewitt Brook. The concentrations
of contaminants is very high in wells abutting the landfill and drop significantly within several hundred
feet from the landfill. Table 1 lists the highest concentrations detected across all Site monitoring
wells and with the wells that are within the NTCRA cap removed  (B-6 and B-14), Table 1 demonstrates the
significant decrease in concentrations within the plume with increasing distance from the landfill for
all contaminants except arsenic, barium,  and PCBs.  The increase in arsenic with distance from the
landfill is likely a result of the mobilization of arsenic from the natural soil materials due to the
reducing environment created by the presence of landfill leachate. The detection of the higher PCB
concentrations with distance is due to the underdrain discharge pipe that had previously discharged high
concentrations of PCBs into the ground at the location of the drainage pond in close proximity to the
wells where the PCBs were detected. The barium is only elevated at one location and the reason for the
elevated levels in not clear.

                                                 Table 1
Contaminant
1,1,1-TCA
1,1-DCE
1,2 DCE
benzene
methylene chloride
PCE
Toluene
TCE
Vinyl Chloride
PCBs
Arsenic
Barium
Beryllium
Chromium
Cadmium
Lead
Manganese
Nickel
  Maximum Concentration
including wells adjacent to
landfill  (B-6, B-14)
(ug/1)

 660
30
4,050
25
180
70
1,650
53
95
7
17
4,270
5.4
145
not detected
120
2,300
                      247
  Maximum Concentration
excluding B-6 and B-14
(ug/1)
 nd
 nd
 14
 4
 2
 nd
 0.8
 nd
 11
 12
 31
4,040
 nd
 24
 6
 11
 1,480
                                                     50
MCL/VT Standard
 (ug/1)
   200
   7
   70
   5
   5
   5
   1000
   5
   2
   0.5
   50
  2,000
   4
   100
   5
   20
   no MCL or state standard
   840 based upon hazard
   guotient of 1
   100

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Low levels of volatile organic compounds have also been detected in the bedrock monitoring wells
adjacent to the landfills. These levels have been consistently below drinking water standards,  There is
no good explanation for the presence of this contamination in the bedrock. It may be a result of the
installation of the monitoring wells or a very small guantity of contamination may have migrated into the
bedrock over time. The contaminated bedrock monitoring well location is within the limits of the landfill
cap.

C.     Surface Water

There are several surface water features at the Site. A drainage pond formed as a result of the
underdrain discharge pipe. Three small unnamed ponds, known as Pond A,  Pond B, and Pond C, are also
located at the Site. In addition, a large wetland area that serves as the headwaters for Hewitt Brook is
located east of the landfill.

The three Ponds are small surface water bodies that formed as a result of the sand and gravel excavation
activities. The Ponds are essentially pits dug to the top of the water table. A drainage channel also
exists just south of the transfer station to drain water from a small wetland into the larger wetland.
The wetland that serves as the headwaters to Hewitt Brook and Hewitt Brook are natural features. Ponds A
and B are within 500 feet of the landfill and 300 feet of the drainage pond. Ponds A and B are isolated
from Pond C and the wetland during significant portions of the year. Only when the water table is high
due to precipitation and snowmelt does water flow from Ponds A and B towards the wetland and Pond C.
Ponds A and B are approximately 0.25 acres in size and have water depths ranging from a few inches to 2
feet. During dry periods these ponds are significantly reduced in size. Water does flow from Pond A to
Pond B during periods of high water. Pond B contains areas of iron staining indicating the presence of
landfill impacted water. Pond C is larger (0.5 acre) and further downgradient of the landfill.

Hewitt Brook, in the stretch from the wetland headwaters to Houghton Lane, is approximately three feet in
width with water depths ranging from one to six inches. Hewitt Brook flows south and southwest and
eventually discharges to the Walloomsac River 2.5 miles from the landfill. The headwaters of Hewitt Brook
is a forested swamp. The headwaters of Hewitt Brook are classified as Class II (high guality wetland)  by
the State of Vermont.

Samples were obtained from all surface water bodies adjacent to the landfill including the drainage pond,
unnamed ponds & B, and C, and Hewitt Brook.  See Figure 4 for the location of surface water samples. The
drainage pond was the most significantly impacted water body at the Site. However, the drainage pond no
longer exists as a result of the NTCRA excavation of the sediments of the pond and the collection and
treatment of the underdrain discharge that was the source of water for the drainage pond.

Several pesticides and elements were detected in most of the surface water samples as well as the
background samples. The surface water samples obtained from Hewitt Brook from 1994-1996 do not indicate a
significant impact to the surface water. All of the elements were below ambient water guality criteria.
Earlier samples from the headwaters indicated significant concentrations of several metals, especially
iron. These samples contained very high levels of aluminum suggesting a possible turbidity related
influence. Mono-, di-, and tri-chlorinated biphenyls (PCBs) were also detected in one surface water
sample in Hewitt Brook at part per trillion concentrations. See Figure 8 for the locations of elevated
levels of constituents during the 1991-1994 sampling program.

The leachate collection system and landfill cap are expected to prevent any further degradation of the
surface water and sediment guality.

D.     Air

Ambient air sampling was performed as part of the RI/FS. Ambient air was sampled at four locations
including upwind. Trichloroethene, benzene,  xylene, chlorobenzene, ethyl benzene, and PCBs were detected
in the ambient air samples at all four locations. The concentrations detected were within the range of
concentrations detected in an ambient air guality study for Burlington, VT. See Figure 9 for the location
of the air samples.

E.     Sediments

Sediment samples were obtained from the drainage pond,  Ponds A, B, and C, and Hewitt Brook. Significant
PCB contamination was detected in the samples obtained from the drainage pond. Low levels of PCBs  (below
1 mg/kg) were detected in Ponds B and C and no PCBs were detected in the sediments of Hewitt Brook. The
area of the drainage pond adjacent to the underdrain discharge pipe contained PCBs up to 14,000,000
ug/kg. Concentrations decreased rapidly with distance from the underdrain discharge pipe. Elevated
concentrations of some metals (iron and manganese) were detected in the headwaters of Hewitt Brook.

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Manganese was the only element detected above reference criteria in Hewitt Brook. See Figure 4 for the
location of the sediment samples and Figure 10 for the location of elevated constituents in the,
sediments.

F.  Landfill

The 15 acre solid waste landfill, is considered the source of the contamination at the Site. The landfill
received both municipal and industrial waste from 1969 - 1987. In particular, a portion of the landfill
was used for open dumping of liguid industrial wastes from 1969-1975. Significant guantities of
industrial chemicals including PCBs, 1,1,1 -TCA, TCE, and PCE were disposed into the lagoon. The exact
location of the lagoon is not known, as it was filled with waste and covered. Aerial photos and
groundwater concentrations support that the lagoon was located in the southwestern portion of the
landfill near the location of monitoring well MW-6. In addition to the lagoon, an underdrain system was
also installed at the landfill to dewater certain portions of the waste that were in contact with the
water table. The underdrain discharged to a depression on the east side of the landfill. This depression
is referred to as the drainage pond. The underdrain served as a conduit for contaminated leachate to flow
out of the landfill.

It is possible that some non-agueous phase liguid  (NAPL) contamination is located within the debris mass
or under the landfill. Monitoring wells at the landfill perimeter do not suggest the presence of NAPL,
however, the nature of the disposal strongly suggests the potential for NAPL to be present.

Based upon the drilling work performed during the Rl, it is believed that the majority of the landfill
waste is above the water table. After completion of the NTCRA, all of the landfill waste will be above
the water table. Therefore, significant reduction in the generation of leachate will occur as a result of
the NTCRA.  This reduction is already evident in the flow into the leachate collection and treatment
system.

Historical data for the underdrain discharge recorded a flow ranging from less than 1 gallon per minute
(gpm) to 6 gpm. The flow of water from the underdrain system into the leachate collection and treatment
system has been below 1 gpm with no significant fluctuations since the installation of the interceptor
trench and leachate collection system in December 1997. Once the NTCRA is complete, contaminant levels in
groundwater should steadily decline and will likely approach drinking water standards within 5-10 years
of the completion of the NTCRA.

A complete discussion of site characteristics can be found in the Remedial Investigation Report in
Sections 4.0 and 5.0.

VI. SUMMARY OF SITE RISKS

A Risk Assessment (RA) was performed to estimate the probability and magnitude of potential adverse human
health and environmental effects from exposure to contaminants associated with the Site. The public
health risk assessment followed a four step process: 1) contaminant identification, which identified
those hazardous substances which, given the specifics of the site were of significant concern; 2)
exposure assessment, which identified actual or potential exposure pathways, characterized the
potentially exposed populations, and determined the extent of possible exposure; 3) toxicity assessment
which considered the types and magnitude of adverse health effects associated with exposure to hazardous
substances, and 4) risk characterization, which integrated the three earlier steps to summarize the
potential and actual risks posed by hazardous substances at the site, including carcinogenic and
non-carcinogenic risks. The results of the public health risk assessment for the Bennington Landfill Site
are discussed below followed by the conclusions of the environmental risk assessment.

An initial baseline Human Health and Ecological Risk Assessment was prepared in 1995. Two additional risk
assessments were performed for the groundwater in June 1997 and February 1998. The initial Risk
Assessment was prepared concurrently with the development of the NTCRA using the RI data collected from
1991-1994.

To document the risk assessment activities performed by EPA at the Site, the Human Health Risk Assessment
discussion will be presented in two parts. First, this ROD will address the exposure pathways,
contaminants of concerns, and risk estimates contained in the original baseline risk assessment prepared
in 1995. Following this discussion, the ROD will focus on those pathways that were not resolved by the
NTCRA and that were evaluated to determine the need for any additional action beyond the NTCRA.

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1995 Risk Assessment

Appendix B contains the summary tables of the data and risk calculations performed on all pathways as
part of the original 1995 Risk Assessment. All of the compounds and elements detected during the sampling
activities were evaluated in the risk assessment, therefore, there is no subset of contaminants in the
1995 Risk Assessment that are considered the contaminants of concern.

Potential human health effects associated with exposure to the contaminants of concern were estimated
guantitatively or gualitatively through the development of several hypothetical exposure pathways. These
pathways were developed to reflect the potential for exposure to hazardous substances based on the
present uses, potential future uses, and location of the Site. A current drinking water use scenario was
not included as a water line provides water to residents down gradient of the landfill and no
contamination was detected in any of the residential wells near the landfill. The area surrounding the
landfill is mixed woodland and residential. While future residential use of the land adjacent to the
landfill is possible, several factors make the potential for future residential use of the land above the
groundwater contamination very unlikely. The areas where contamination is located are adjacent to the
landfill and within the parcel of land  (including the landfill) owned by the Town of Bennington. Most of
the area of groundwater contamination outside the edge of the landfill is in a wetland.
There are, however, several residences in very close proximity to the landfill and the Site area is often
used by dirt bikes.

The original 1995 Risk Assessment also evaluated the risk from present and future exposure to surface
water, sediments, soils, and ambient air. The following is a brief summary of the exposure pathways
evaluated. A more thorough description can be found Chapter 3 of the 1995 Human Health Risk Assessment. A
brief summary of the 8 exposure pathways guantitatively evaluated in the Human Health Risk Assessment is
presented below.

1995 Human Health Risk Assessment Exposure Pathways

1. Future ingestion of overburden groundwater. This pathway assumes that a future water supply well could
be installed up to the edge of the pre-NTCRA landfill boundary. It was also assumed that a user of that
water supply would consume 2 liters of water per day, 350 days per year, for 30 years. All contaminants
detected at the Site were assumed to be located at the Site of the water supply well and the arithmetic
average was used to determine the average risk estimate. The maximum concentration of a compound or
element detected was used to estimate the reasonable maximum exposure scenario.

2. Future ingestion of bedrock groundwater. Same exposure assumptions as for pathway 1 above.

3. Ingestion of and dermal contact with, surface soils and dry, exposed sediments. The present scenario
pathway assumes a trespasser or recreational user of the Site. Under the present scenario it was assumed
that this individual would visit the Site 39 days per year for a period of 10 years. The 9-18 age group
was targeted as the most likely category of Site visitors. It was also assumed that these individuals
would ingest 100 mg of soil per visit. For the future scenario, residential development up to the edge of
the landfill was assumed. Under the future scenario, 150 days per year of exposure for 30 years was
assumed. An ingestion rate of 200 mg per visit was assumed for the first 6 years and 100 mg per visit for
the remaining 24 years. All contaminants detected at the Site were assumed to located at the Site of
contact with the soil or sediments. The arithmetic average was used to determine the average risk
estimate. The maximum concentration of a compound or element detected was used to estimate the reasonable
maximum exposure scenario.

4. Ingestion of, and dermal contact with, Brook and Pond submerged sediments. The present scenario
pathway assumes a trespasser or recreational user of the Site. Under the present scenario it was assumed
that this individual would visit the Site 13 days per year for a period of 10 years. The 9-18 age group
was targeted as the most likely category of Site visitors. It was also assumed that they would ingest 100
mg of soil per visit. For the future scenario, residential development up to the edge of the landfill was
assumed. Under the future scenario, 26 days per year of exposure for the first 6 years and 13 days per
year of exposure for the remaining 24 years old was assumed. An ingestion rate of 200 mg of soil per
visit was assumed for the first 6 years and ingestion of 100 mg of soil per visit was assumed for the
remaining 24 years. All contaminants detected at the Site were assumed to located at the Site of contact
with the sediments. The arithmetic average was used to determine the average risk estimate. The
maximum concentration of a compound or element detected was used to estimate the reasonable
maximum exposure scenario.

5. Ingestion of and dermal contact with Underdrain submerged sediments. The present scenario pathway
assumes a trespasser or recreational user of the Site. Under the present scenario it was assumed that
this individual would visit the Site 13 days per year for a period of 10 years. The 9-18 age group was
targeted as the most likely category of Site visitors. It was also assumed that they would ingest 100 mg

-------
of soil per visit. For the future scenario, residential development up to the edge of the landfill was
assumed. Under the future scenario,  26 days per year of exposure for the first 6 years and 13 days per
year of exposure for the remaining 24 years was assumed. An ingestion rate of 200 mg of soil per visit
was assumed for the first 6 years and 100 mg per visit for the remaining 24 years. All contaminants
detected at the Site were assumed to located at the Site of contact with the sediments. The arithmetic
average was used to determine the average risk estimate. The maximum concentration of a compound or
element detected was used to estimate the reasonable maximum exposure scenario.

6. Ingestion of and dermal contact with, Underdrain submerged sediments. The present scenario pathway
assumes a trespasser or recreational user of the Site. Under the present scenario it was assumed that
this individual would visit the Site 13 days per year for a period of 10 years. The 9-18 age group was
targeted as the most likely category of Site visitors. It was also assumed that they would ingest 100 mg
of soil per visit. For the future scenario, residential development up to the edge of the landfill was
assumed. Under the future scenario,  26 days per year of exposure for the first 6 years and 13 days per
year of exposure for the remaining 24 years was assumed. An ingestion rate of 200 mg of soil per visit
was assumed for the first 6 years and 100 mg per visit for the remaining 24 years. All contaminants
detected at the Site were assumed to located at the Site of contact with the sediments. The arithmetic
average was used to determine the average risk estimate. The maximum concentration of a compound or
element detected was used to estimate the reasonable maximum exposure scenario.

7. Dermal contact with Pond and Brook Surface Water. The present scenario pathway assumes a trespasser or
recreational user of the Site. Under the present scenario it was assumed that this individual would visit
the Site 13 days per year for a period of 10 years. The 9-18 age group was targeted as the most likely
category of Site visitors. It was also assumed that they would come into contact with Site contaminants
on the hands, arms, legs, and feet during a 1 hour wading event in the surface water bodies.

The surface water bodies were too shallow for swimming, therefore ingestion or inhalation of contaminants
was not evaluated. For the future scenario, residential development up to the edge of the landfill was
assumed. Under the future scenario,  26 days per year of exposure the first 6 years and 13 days per year
of exposure for the remaining 24 years was assumed. The same 1 hour duration event was assumed. Hands,
arms, legs, and feet were the exposed areas. Ingestion and inhalation were not evaluated for the future
pathway. All contaminants detected at the Site were assumed to located at the Site of contact with the
sediments. The arithmetic average was used to determine the average risk estimate. The maximum
concentration of a compound or element detected was used to estimate the reasonable maximum exposure
scenario.

8. Inhalation of ambient air by a transfer station employee. For this pathways it was assumed that an
individual working at the transfer station located at the edge of the landfill would ingest 20 cubic
meters of air per day for 60 days per year over a 25 year period. All contaminants detected at the Site
were assumed to be located at the Site of inhalation and the arithmetic average was used to determine the
average risk estimate and the maximum concentration of a compound or element detected was used to
estimate the reasonable maximum exposure scenario.

For each pathway evaluated, an average and a reasonable maximum exposure estimate was generated
corresponding to exposure to the average and the maximum concentration detected in that particular
medium.

Excess lifetime cancer risks were determined for each exposure pathway by multiplying the exposure level
with the chemical specific cancer factor. Cancer potency factors have been developed by EPA from
epidemiological or animal studies to reflect a conservative "upper bound" of the risk posed by
potentially carcinogenic compounds.  That is, the true risk is unlikely to be greater than the risk
predicted. The resulting risk estimates are expressed in scientific notation as a probability  (e.g. 1 x,
10-6 for 1/1,000,000) and indicate (using this example), that an average individual is not likely to have
greater that a one in a million chance of developing cancer over 70 years as a result of site-related
exposure at the define exposure assumptions. Current EPA practice considers carcinogenic risks to be
additive when assessing exposure to a mixture of hazardous substances.

The hazard index was also calculated for each pathway as EPA measure of the potential for
non-carcinogenic health effects. A hazard guotient is calculated by dividing the exposure level by the
reference dose (RfD) or other suitable benchmark for non-carcinogenic health effects for an individual
compound. Reference doses have been developed by EPA to protect sensitive individuals over the course of
a lifetime and they reflect a daily exposure level that is likely to be without an appreciable risk of an
adverse health effect. RfDs are derived from epidemiological or animal studies and incorporate
uncertainty factors to help ensure that adverse health effects will not occur. The hazard guotient is
often expressed as a single value (e.g., 0.3) indicating the ratio of the stated exposure as defined to
the reference dose value  (in this example, the exposure as characterized is approximately one third of an
acceptable exposure level for the given compound). The hazard guotient is only considered additive for

-------
compounds that have the same or similar toxic endpoint and the sum is referred to as the hazard index
(HI).   (For example: the hazard quotient for a compound known to produce liver damage should riot be added
to a second whose toxic endpoint is kidney damage)

Table 2 depicts the carcinogenic and noncarcinogenic risk summary for the pathways evaluated in the 1995
Human Health Risk Assessment. Appendix B of this ROD contains the compound-specific risk estimates and
exposure factors used to calculate the risks summarized below.

                                            Table 2
Exposure Pathway
Present or    Hazard Index  Hazard Index
 Future         average       reasonable
Overburden Groundwater                F

Bedrock Groundwater                  F

Surface soils and exposed             P
sediments  (Ingestion and dermal)

Surface soils and exposed             F
sediments  (Ingestion and dermal)

Brook and Pond submerged              P
sediments

Brook and Pond submerged              F
sediments

Underdrain Exposed Sediments          P

Underdrain Exposed Sediments          F

Drainage Pond submerged               P
sediments

Drainage Pond submerged               F
sediments

Pond and Brook Surface Water          P

Pond and Brook Surface Water          F

Ambient Air at Transfer Station       P
              scenario


                  20



                  0.2


                  0.3


                  0.008


                  0.1


                  30

                  300

                  0.2


                  1


                  0.02

                  0.06

                  0.0001
maximum scenario


       200

      10

       0.1


       3.0


       0.03


       0.4


       30

       300

       0.2


       1


       0.08

       0.3

       0.0001
Cancer Risk       Cancer Risk
average scenario  reasonable
                  maximum
                  scenario

                 4x10-3

                  1x10-4

                  1x10-5


                  2x10-4


                  1x10-6


                  1x10-5


                  2x10-3

                  2x10-2

                  2x10-5


                  1x10-4


                  4x10-7

                  2x10-6

                  3x10-7
4x10-4



 1x10-6


 2x10-5


4x10-7


 4x10-6


 2x10-3

 2x10-2

 1 xlO-5


 1x10-4


 1x10-7

5x10-7

 3x10-7
Based upon the results of the 1995 Human Health Fisk Assessment summarized above, EPA implemented a non
time-critical removal action (NTCRA) The primary threats upon which the NTCRA was based were the exposure
to contaminated underdrain sediments and future ingestion of overburden groundwater.

PCBs were the only constituent contributing to the risk levels in any of the soils and sediments
scenarios The NTCRA required all PCBs above 1 mg/kg to be excavated and placed under the cap. In
groundwater, Vinyl chloride was the major contributor to the cancer risk with significant contributions
from 1,1-dichloroethene, PCBs,  arsenic, and beryllium. Manganese represented the majority (50%)  of the
non-cancer groundwater risk with arsenic, barium, 1,2-dichloroethene, and PCBs all with hazard quotients
above 1,

Revised Human Health Risk Assessments  (June 1997 and February 1998)

The NTCRA completely addressed the unacceptable risks represented by present and future potential
exposure to contaminated soils and sediments. The 1995 Human Health Risk Assessment documented that the
surface water and sediments of the Ponds and the soils in areas outside of the PCB contamination were not
considered an unacceptable threat. Therefore, the only pathway not completely addressed by the NTCRA was
exposure to contaminated overburden groundwater.

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In addition, upon review of the 1995 Human Health Risk Assessment, EPA had concerns regarding the
possible effect of turbidity on the presence and concentration of several elements that were evaluated in
the 1995 Risk Assessment. EPA reguired the collection of additional data using the low-flow (or
low-stress) sampling protocol to better assess groundwater quality. During the same time period two other
factors changed: EPA completed a re-evaluation of the toxicity information relating to PCBs; and the
final design of the NTCRA revealed that several wells used in the 1995 Risk Assessment would be within
the limits of the landfill cap and should not be included in the risk estimates.

EPA completed an initial revised risk assessment for groundwater in June 1997. The same exposure
assumptions of 350 days per year for 30 years at 2 liters of water per day were used. A revised toxicity
value was used for PCBs and the data from wells 6 and 14, which are within the limits of the NTCRA cap,
were excluded. Also, only the data collected from 1994-1997 using the low-flow sampling technique was
used to estimate the risk As shown in Tables 3 and 4 below, a the 1997 revised Risk Assessment documents
a significantly lower risk.

                                               Table 3
                                   June 1997 Revised Cancer Risks
                                        Groundwater Ingestion
Contaminant
Benzene
chloroethane
1,4-Dichlorobenzene
Methylene Chloride
Vinyl Chloride
PCBs
Arsenic
                      MCL    Average  Cone.
                     (mg/1)        (mg/1)
                         Maximum Cone.  Slope factor
                           (mg/1)
0.005
0.008
0.075
0.005
0.002
0.0005
0.05
0.002
0.05
0.002
0.0009
0.002
0.004
0.15
0.004
0.0029
0.003
0.002
0.011
0.012
0.31
0.029

0.024
0.0075
1.9
0.07
1.75
  Average
Cancer Risk

  1x10-7
  1x10-8
  7x10-8
  2x10-8
  1x10-5
  6x10-7
  7x10-5
  Maximum
Cancer Risk

      2x10-6
      2x10-6
      8x10-7
      2x10-7
      1x10-5
      1x10-5
      6x10-4
Total Risk

Exposure factor for cancer risks = 00117
                                                      8x10-5
                                                                            9x10-4

-------
                                            Table 4
                              June 1997 Revised Non-Cancer Risks
                                    Groundwater Ingestion
Contaminant
Benzene
Chlorobenzene
chloroethane
1,2-Dichlorobenzene
1,4 Dichlorobenzene
1,1 Dichloroethane
1,2 Dichloroethene
Ethylbenzene
Methylene Chloride
Napthalene
Toluene
1,2,4
Trimethylbenze
PCBs
Arsenic
Barium
Cadmium
Chromium
Manganese
Nickel
Vanadium
Zinc
 MCL   Average Cone.
(mg/1)     (mg/1)
0.005
0.1
0.008
0.6
0.075
0.005
0.07
0.7
0.005
0.001
1

0.002
0.002

0.0007
0.002

0.003
0.0005
0.001
0.006
0.0001
0.0008
0.0005
0.05
2
0.005
0.05
0.783
100
0.006
0.72
0.004
0.015
1.68
0.003
0.003

0.024


Maximum Cone.
   (mg/1)
                           0.004
                           0.005
                           0.05
                           0.0007
                           0.003
                           0.017
                           0.014
                           0.0005
                           0.002

                           0.006
                           0.002

                           0.012
                           0.031
                           4.04
                           0.007
                           0.06
                           1.48
                            0.05
                            0.006
                            0.323
Reference
  Dose
               0.0017
               0.02
               0.4
               0.09
               0.23
               0.1
               0.01
               0.1
               0.06
               0.04
               0.2
               0.05
 Average
 Hazard
Quotient
Maximum
Hazard Quotient
0.02
0.02
0.0004
0.0001
0.0001
0.001
0.006
0.0001
0.0003
0.0005
0.00007
0.0003
0.07
0.006
0.003
0.0002
0.0003
0.005
0.04
0.0001
0.001
0.004
0.0001
0.001
>
0.0003
0.07
0.0005
0005
0.024
0.02
0.007
0.3
0.0000007
1
0.5
0.1
0.03
0.6
0.02
0.02
0.005
0.00
3
2
0.4
0.3
2
0.07
0.02
0.03
exposure factor for non-cancer risks = 0.0274
Of the 29 contaminants of concern, only 5 of the 29  (vinyl chloride, PCBs, arsenic, barium, and
manganese) had a cancer risk above 10-6 or a non-cancer hazard guotient above 1. The elimination of wells
B-6 and B-14 greatly reduced the contaminant concentrations used to estimate the risks. In addition, the
low-flow sampling eliminated several elements and provided a more realistic estimate of the other
elements The result of these changes was a significant decrease in the estimated risk from future
ingestion of the overburden groundwater The cancer risk was at the upper end of the acceptable risk range
and the maximum hazard index was 3
A further evaluation of the risk from groundwater ingestion was warranted given that the sole risk
drivers at the Site were arsenic at a concentration well below the MCL and vinyl chloride just above the
MCL. During the most recent sampling event  (Spring 1997) vinyl chloride was only detected in one well
outside the perimeter of the NTCRA cap at a concentration of 2.8 ug/1 as compared to the MCL of 2 ug/1.  A
recent revision to the method for estimating the concentration term for the reasonable maximum exposure
was used to develop a final and more realistic estimate of future risk from ingestion of groundwater. The
average concentration per monitoring well location is calculated and the maximum of the average
concentrations per location is used as the concentration term in the reasonable maximum exposure. This
method is only appropriate when there is a significant data base of groundwater data. The risk estimates
using the revised method is presented in Table 5.

-------
Contaminant
Arsenic

Barium
Manganese
Total Risk
                      Table 5
        February 1998 Revised Cancer Risks
               Groundwater Ingestion

   MCL      Average        Maximum       Slope
    (mg/1)   Concentration  Average       factor/
           (mg/1)         Concentration   RFD
                           (mg/1)
Vinyl Chloride   0.002
PCBs             0.0005
0.05

2
0.002
0.004

0.15

1.68
0.78
0.06
0.08

021

3.462
1.114
                                           Maximum
                                           Hazard
                                           Quotient
1.9
0.07/
2
15/
0.0003
0.07
0.024



2

1
2





.4

                                        Maximum
                                        Cancer Risk
                                                                     1.2x10-4
                                                                     7x10-6

                                                                     3.7x10-4
                                                                    4.9x10-4
Exposure factor for cancer risks = 0.0117
Exposure factor of non-cancer = 0.0274
As shown in Table 5, the maximum potential carcinogenic risk is 4.9 x 10-4 and the maximum hazard Index
is 2 The non-cancer risk is within the range of risk considered acceptable by EPA Region I. The
carcinogenic risk is at the upper end of the range of cancer risk considered acceptable by EPA Region I.
Other factors regarding the nature of the threat and the potential for exposure are considered when the
risk is at the upper end of the cancer risk range. The Institutional Controls preventing future use of
the groundwater, the low probability of any future development of the area above the groundwater
contamination, the fact that the most significant contaminant  (responsible for 80% of the cancer risk) is
at a concentration well below the MCL, and the availability of a water line all support the conclusion
that no additional risk reduction is reguired at the Site

Therefore, EPA has determined that no unacceptable human health risk was remaining after the NTCRA. As
such, a Feasibility Study Report was not prepared and a Summary Assessment Report was developed to
synthesis all of the supporting documentation for the Record of Decision.

Ecological Risk Assessment

The June 1995 Risk Assessment also included an Ecological Risk Assessment. The Site includes several
wetlands and the headwaters for Hewitt Brook which were evaluated as part of the Ecological Risk
Assessment Samples obtained during the RI were compared with applicable ecological toxicity benchmark
values to develop an estimate of potential ecological impact from the Site. Visual observations and
surveys of the area show that most of the areas away from the landfill have not been significantly
impacted.

The soils at the end of the underdrain and the adjacent drainage pond contain PCBs levels that would not
be acceptable from an ecological perspective. The PCBs at these locations were removed as part of the
NTCRA and placed under the cap. The surface water of Hewitt Brook has not been significantly impacted by
the Site. Some samples from Hewitt Brook and the Ponds have contained metals above ambient water guality
criteria. However, data collected from 1994-1997 did not show an exceedance of water guality criteria in
Hewitt Brook.

Sediment concentrations of iron and barium were significantly above background at several locations. The
Ponds closest to the landfill do shown signs of iron precipitation and may experience a diminishment of
function and value as a result of the iron floe. The landfill cap will gradually reduce the iron loading
into Pond B.
The actions implemented as part of the NTCRA were considered to have resolved the ecological concerns at
the Site by removing PCB contaminated soils and sediments and collecting and treating the leachate
discharge from the landfill underdrain pipe. Therefore, no additional remedial objectives were
established with respect to ecological risks following the NTCRA. In addition, recent sampling
(1994-1996) of Hewitt Brook confirmed that the surface water currently meets ambient water guality
criteria.

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VIII. DESCRIPTION OF NO FURTHER ACTION ALTERNATIVE

As detailed in the discussion and tables presented in this ROD, the NTCRA completely resolved all of the
exposure pathways with the exception of groundwater. The NTCRA will significantly contribute to the
restoration of groundwater and the prevention of groundwater use. The NTCRA institutional controls,
including, among other measures, a Deed Restriction preventing future groundwater use over the entire
area of contamination and the re-classification of the groundwater by the State of Vermont to class IV,
non-potable, will effectively prevent any use of the contaminated groundwater at the Site. On this basis
alone, EPA could support that the groundwater pathway has been completely addressed. In addition, EPA
evaluated the remote risk that would result from future use of the groundwater between the edge of the
NTCRA components and the wetlands The risk estimates in Table 5 of this ROD are at the upper end of the
EPA acceptable risk range. Given the low probability of future use, the actions completed and to be
performed as part of the NTCRA, and the lack of a compelling significant risk, EPA has determined that
there is no risk basis for any further action at the Site.

The No Further Action alternative includes 30 years of monitoring of the groundwater, surface water, and
sediments to document that conditions do not change. EPA will perform years 1-10 of the monitoring and
the State of Vermont will perform years 11 - 30. The estimated cost for 30 years of long-term monitoring
is $1,499,000 assuming a 7% discount factor.

All other long-term activities at the Site are covered by the NTCRA. Under the consent decree for the
NTCRA, the PRPs are obligated to perform all long term operation, inspection, and maintenance activities
for the NTCRA components  (landfill cap, interceptor trench, and leachate collection and treatment
system). In addition, the consent decree obligates the PRPs to maintain institutional controls over the
area of groundwater contamination.

IX. DOCUMENTATION OF NO SIGNIFICANT CHANGES

EPA presented a proposed plan  (preferred alternative)  for No Further Action to the public on 21, 1998. A
public comment period was held from July 22, 1998 to August 21, 1998 during which EPA held a public
hearing in August 11, 1998. No public comment was received during the public comment period or at the
public hearing The only comment received by EPA was a statement by the VT DEC at the public hearing
expressing support for the proposed No Further Action decision. As such, no changes were made to the
action included in the Proposed Plan. The transcript for the August 11, 1998 public hearing is included
as Appendix E.

X. STATE ROLE

The Vermont Department of Environmental Conservation has been significantly involved in the Site and has
indicated its support for the selected remedy. The State has also reviewed the Remedial Investigation,
Risk Assessment and Summary Assessment Report to determine if the selected remedy is in compliance with
applicable or relevant and appropriate State Environmental laws and regulations. The State of Vermont
concurs with the selected remedy for the Bennington Landfill Superfund Site. A copy of the declaration of
concurrence is attached as Appendix D.

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                              APPENDIX A
                                Figures
                               APPENDIX B

                        1995 Risk Assessment Tables

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                 APPENDIX Al

    BENNINGTON LANDFILL SUMMARY  STATISTICS.
     FOR THE HUMAN HEALTH RISK ASSESSMENT

Background Data  (Ground Water, Surface/Subsurface Soil, Sediments, Surface Water, and Air)

Overburden Ground Water Data

Bedrock Ground Water Data

Surface Soil/Exposed Sediment Data

Sediment Underdrain Data

Leachate/Landfill Underdrain  (Aqueous) Data\

Drainage Pond Sediment Data

Pond/Brook Submerged Sediments

Surface Water Data

Air Data

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                               APPENDIX A2

                    BENNINGTON LANDFILL SUMMARY STATISTICS
                       FOR THE ECOLOGICAL RISK ASSESSMENT

                                                 SUMMARY STATISTICS FOR THE BENNINGTON SITE
                              ALL  RESULTS IN UG/L OR UG/KG,  EXCEPT INORGANIC SOIL RESULTS IN MG/KG AND AIR RESULTS  IN  UG/M3

                                                        TYPE-BACKGROUND SURFACE SOIL
Class

VOCs
RNAs
Pest/PCBs
Inor.
NAME

1,1, 1-TRICHLOROETHANE
2, 4-DIMETHYLPHENOL
BIS(2-ETHYLHEXYL)PHTHALATE
DI-N-BUTYLPHTHALATE
4,4'-DDE
DIELDRIN
ENDOSULFAN II
ENDOSULFAN SULFATE
ENDRIN
HEPTACHLOR EPOXIDE
ALUMINUM
ARSENIC
BARIUM
CALCIUM
CHROMIUM
COBALT
COPPER
CYANIDE
IRON
MAGNESIUM
MANGANESE
MERCURY
NICKEL
POTASSIUM
SILVER
SODIUM
VANADIUM
ZINC
Num.
Times
Detected
1
1
'E 1
1
1
2
1
1
1
2
3
3
3
3
3
3
3
1
3
3
3
1
3
3
1
3
3
3
Num. Lowest
Samples Detected
Analyzed
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
9
57
40
40
1

0
0
0
0
3980
2
43
169
4
10
6
0
11400
243
626
0
5
401
0
10
9
24
Cone.
.0000
.0000
.0000
.0000
.1000
0.720
.4500
.1200
.3000
.0570
.0000
.7000
.1000
.0000
.5000
.2000
.7000
.5000
.0000
.0000
.0000
.0900
.6000
.0000
.7100
.9000
.0000
.9000
Highest
Detected

9.
57
60
40
1
0
0
0
0
0
8430
4
370
15700
10
18
15
0
21800
5890
5930
0
14
541
0
39
14
74
Cone.
0000
.0000
.0000
.0000
.1000
.6900
.4500
.1200
.3000
.1800
.0000
.9000
.0000
.0000
.2000
.0000
.5000
.5000
.0000
.0000
.0000
.0900
.4000
.0000
.7100
.6000
.7000
.9000
Highest
Cone.
Locat .
BQS-01RE (0-1
BQS-03 (0-1 '
BQS-03 (0-1 '
BQS-03 (0-1 '
BQS-03 (0-1 '
BQS-03 (0-1 '
BQS-03 (0-1 '
BQS-03 (0-1 '
BQS-03 (0-1 '
BQS-03 (0-1 '
BQS-03 (0-1 '
BQS-03 (0-1 '
BQS-03 (0-1 '
BQS-03 (0-1 '
BQS-03 (0-1 '
BQS-03 (0-1 '
BQS-03 (0-1 '
BQS-03 (0-1 '
BQS-03 (0-1 '
BQS-03 (0-1 '
BQS-03 (0-1 '
BQS-03 (0-1 '
BQS-03 (0-1 '
BQS-03 (0-1 '
BQS-03 (0-1 '
BQS-03 (0-1 '
BQS-03 (0-1 '
BQS-03 (0-1 '


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) 9/28/92
)_9/28/92
) 9/28/92
) 9/28/92
)_9/28/92
) 9/28/92
Arithmetic
Mean
Cone.
7.33
155.67
47.33
160.00
1.88
1.02
1.62
1.51
1.53
0.46
6313.33
3.77
155.63
5559.67
7.40
14.83
11.83
0.19
17000.00
2497.67
2406.00
0.05
10.07
472.00
0.40
23.87
11.23
47.07
Lowest
Observed
Detect. Limit
12.
400

420
4
4
4
4
4
2







0



0


0



000
.000

.000
.500
.600
.200
.200
.000
.300







.060



.060


.480



Highest
Observed
Detect. Limit
14.00
420.00

460.00
4.60
4.60
4.60
4.60
4.60
2.30







0.06



0.06


0.50

-------
                  SUMMARY  STATISTICS  FOR THE BENNINGTON SITE
ALL RESULTS IN UG/L OR UG/KG,  EXCEPT  INORGANIC SOIL RESULTS IN MG/KG AND AIR RESULTS  IN UG/M3

                           TYPE-BACKGROUND SEDIMENTS

Class NAME
VOCs METHYLENE CHLORIDE
TOLUENE
Pest/PCBs 4, 4 '-DDE
4, 4 '-DDT
DIELDRIN
ENDOSULFAN II
ENDRIN
GAMMA- BHC (LI NDANE )
Inor. ALUMINUM
ANTIMONY
ARSENIC
BARIUM
CADMIUM
CALCIUM
CHROMIUM
COBALT
COPPER
IRON
LEAD
MAGNESIUM
MANGANESE
MERCURY
NICKEL
POTASSIUM
SODIUM
VANADIUM
ZINC
Num.
Times
Detected
1
1
1
1
1
1
1
1
2
1
1
2
1
2
2
2
2
2
1
2
2
2
2
2
1
2
2
Num. Lowest
Samples Detected
Analyzed
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
17,
28,
0,
0,
0,
0,
0,
0,
7120,
4,
4,
61.
2,
4250,
12,
5,
6,
13500,
14,
1750,
566,
0,
11,
416,
1600,
12,
40,
Cone.
.0000
.0000
.1500
.9700
.3500
.1100
.2500
.0820
.0000
.7000
.2000
.0000
.0000
.0000
.3000
.7000
.5000
.0000
.4000
.0000
.0000
.0900
.7000
.0000
.0000
.3000
.7000
Highest
Detected

17,
28,
0,
0,
0,
0,
0,
0,
16000,
4,
4,
105,
2,
10200,
19,
12,
17,
27200,
14,
3920,
754,
0,
19,
753,
1600,
26,
75,
Cone.
.0000
.0000
.1500
.9700
.3500
.1100
.2500
.0820
.0000
.7000
.2000
.0000
.0000
.0000
.9000
.9000
.1000
.0000
.4000
.0000
.0000
.1500
.0000
.0000
.0000
.2000
.3000
Highest
Cone.
Locat .
BQSED-01 (0-6'
BQSED-01(0-6'
BQSED-01 (0-6'
BQSED-02 (0-6'
BQSED-02 (0-6'
BQSED-02 (0-6'
BQSED-02 (0-6'
BQSED-02 (0-6'
BQSED-01 (0-6'
BQSED-01 (0-6'
BQSED-01 (0-6'
BQSED-01 (0-6'
BQSED-01 (0-6'
BQSED-01 (0-6'
BQSED-01 (0-6'
BQSED-01 (0-6'
BQSED-01 (0-6'
BQSED-01 (0-6'
BQSED-01 (0-6'
BQSED-01 (0-6'
BQSED-01 (0-6'
BQSED-01 (0-6'
BQSED-01 (0-6'
BQSED-01 (0-6'
BQSED-01 (0-6'
BQSED-01 (0-6'
BQSED-01 (0-6'


') 9/28/92
')_9/28/92
') 9/28/92
')_9/28/92
') 9/28/92
') 9/28/92
')_9/28/92
') 9/28/92
')_9/28/92
') 9/28/92
')_9/28/92
') 9/28/92
') 9/28/92
')_9/28/92
')_9/28/92
') 9/28/92
')_9/28/92
') 9/28/92
')_9/28/92
') 9/28/92
')_9/28/92
') 9/28/92
') 9/28/92
')_9/28/92
') 9/28/92
')_9/28/92
') 9/28/92
Arithmetic
Mean
Cone.
12.50
18.00
1.42
1.91
1.60
1.48
1.55
0.77
11560.00
3.25
2.43
83.00
1.40
7225.00
16.10
9.30
11.80
20350.00
7.36
2835.00
660.00
0.12
15.35
584.50
802.60
19.25
58.00
Lowest
Observed
Detect. Limit
16.
16.
5.
5.
5.
5.
5.
2.

3.
1.

1.





0.





10.


,000
,000
,400
,700
,700
,700
,700
,900

,600
,300

,600





,650





,400


Highest
Observed
Detect. Limit
16,
16,
5,
5,
5,
5,
5,
2,

3,
1,

1,





0,





10,


.00
.00
.40
.70
.70
.70
.70
.90

.60
.30

.60





.45





.40

-------
                                                                          TABLE  I
                           SUMMARY STATISTICS FOR THE BENNINGTON SITE
ALL RESULTS IN UG/L OR  UG/KG,  EXCEPT INORGANIC SOIL RESULTS IN MG/KG AND AIR  RESULTS  IN UG/M3
	 i irzj
— oj-i^ mj^u u IN
Num.
Times
Class Name Detected
BNAs BIS (2-ETHYLHEXYL) PHTHALATE
DI-N-BUTYLPHTHALATE
Pest/PCBs 4, 4 '-DDE
DIELDRIN
ENDRIN
Inor. ALUMINUM
ARSENIC
BARIUM
CALCIUM
CHROMIUM
COBALT
COPPER
IRON
LEAD
MAGNESIUM
MANGANESE
NICKEL
POTASSIUM
SODIUM
VANADIUM
ZINC
3
1
1
1
1
3
3
3
3
3
3
3
3
1
3
3
3
3
3
3
3
u ouoou±\r -M<~nj ouj.j_io 	
Num. Lowest
Samples Detected
Analyzed Cone.
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
34,
35,
0,
0,
0,
3070,
2,
33,
236,
5,
15,
6,
10900,
8,
360,
691,
7,
199,
20,
6,
18,
.0000
.0000
.3900
.1000
.0720
.0000
.3000
.8000
.0000
.9000
.3000
.1000
.0000
.9000
.0000
.0000
.8000
.0000
.2000
.1000
.8000
Highest
Detected
Cone.
45,
35,
0,
0,
0,
8980,
4,
81,
1490,
12,
21,
24,
25600,
8,
2250,
756,
18,
686,
24,
12,
50,
.0000
.0000
.3900
.1000
.0720
.3000
.3000
.8000
.0000
.4000
.1000
.8000
.0000
.9000
.0000
.0000
.2000
.0000
.3000
.6000
.6000
Highest
Cone.
Locat .
BOS-02 (2-31
BOS-01 (2-31
BOS-01 (2-31
BOS-01 (2-31
BOS-01 (2-31
BOS-02 (2-31
BOS-03 (2-31
BOS-01 (2-31
BOS-03 (2-31
BOS-02 (2-31
BOS-02 (2-31
BOS-02 (2-31
BOS-02 (2-31
BOS-03 (2-31
BOS-02 (2-31
BOS-03 (2-31
BOS-02 (2-31
BOS-02 (2-31
BOS-02 (2-31
BOS-02 (2-31
BOS-02 (2-31
Arithmetic
Mean
Cone.
) 9/28/92
)_9/28/92
) 9/28/92
)_9/28/92
) 9/28/92
) 9/28/92
)_9/28/92
) 9/28/92
)_9/28/92
) 9/28/92
)_9/28/92
) 9/28/92
) 9/28/92
)_9/28/92
)_9/28/92
) 9/28/92
)_9/28/92
) 9/28/92
)_9/28/92
) 9/28/92
)_9/28/92
40.
136.
1.
1.
1.
5436.
3.
55.
656.
8.
18.
14.
18000.
6.
1253.
731.
11.
426.
22.
9.
33.
00
67
38
28
27
67
43
70
67
77
67
47
00
77
33
00
87
00
67
23
67
Lowest Highest
Observed Observed
Detect. Limit Detect. Limit
.
370.000 380.00
3.700 3.80
3.700 3.80
3.700 3.80
.
.
.
.
.
.
.
.
8.500 14.30
.
.
.
.
.
.
.

-------
                           SUMMARY STATISTICS FOR THE BENNINGTON SITE
ALL RESULTS IN UG/L OR  UG/KG,  EXCEPT INORGANIC SOIL RESULTS IN MG/KG AND AIR  RESULTS  IN UG/M3

Class Name
Pest/PCBs 4, 4 '-DDT
ALDRIN
DIELDRIN
ENDRIN
GAMMA- BHC (LINDANE)
HEPTACHLOR
Inor. ALUMINUM
BARIUM
CALCIUM
IRON
LEAD
MAGNESIUM
MANGANESE
POTASSIUM
SODIUM
ZINC
L j.±r£j oj-i^r\\jr\wui\i
Num.
Times
Detected
I
I
I
I
I
I
I
2
2
2
I
2
2
2
2
2
u ouoour\r^
Num.
Sample:
Analyzec
2
2
2
2
2
1
2
2
2
2
2
2
2
2
2
2
-i1— Hj vv.rt.-L.Cjr
Lc
3 Dete
i C
0.
0.
0.
0.
0.
0.
1740.
16.
26100.
72.
5.
11500.
32.
794.
708.
7.
\
swest
;cted
'one.
,0310
,0010
,0070
,0070
,0030
,0030
,0000
,0000
,0000
,8000
,8000
,0000
,4000
,0000
,0000
,6000
I

0.
0.
0.
0.
0.
0.
1740.
35.
69300.
2190.
5.
17100.
230.
1520.
18500.
12.
Highest
Detected
Cone.
,0310
,0010
,0070
,0070
,0030
,0030
,0000
,6000
,0000
,0000
,8000
,0000
,0000
,0000
,0000
,0000
Highest
Cone.
Locat .
BOSWAT-02
BOSWAT-02
BOSWAT-02
BOSWAT-02
BOSWAT-02
BOSWAT-02
BOSWAT-02
BOSWAT-02
BOSWAT-02
BOSWAT-02
BOSWAT-02
BOSWAT-02
BOSWAT-02
BOSWAT-02
BOSWAT-02
BOSWAT-02


_5/26/93
5/26/93
_5/26/93
5/26/93
_5/26/93
5/26/93
5/26/93
_5/26/93
5/26/93
_5/26/93
5/26/93
_5/26/93
5/26/93
5/26/93
_5/26/93
5/26/93
Arithmet
Mean
Cone.
0.
0.
0.
0.
0.
0.
871.
25.
47700.
1131.
3.
14300.
131.
1157.
9604.
9.
ic Lowest
Observed
Detect. Limit I
04 0.100
01 0.050
03 0.100
03 0.100
01 0.050
00
75 7.000
80
00
40
65 3.000
00
20
00
00
80
Highest
Observed
Detect. Limit
0.10
0.05
0.10
0.10
0.05
.
7.00
.
.
.
3.00
.
.
.
.
.

-------
                           SUMMARY STATISTICS FOR THE BENNINGTON SITE
ALL RESULTS IN UG/L OR  UG/KG,  EXCEPT INORGANIC SOIL RESULTS IN MG/KG AND AIR  RESULTS  IN UG/M3
-L -L±r£j
xjiLj-i^jru-ix £j /
Num.
Times
Class Name Detected
VOCs ACETONE
BENZENE
CHLOROBENZENE
CHLOROETHANE
ETHYLBENZENE
TOLUENE
XYLENE (TOTAL)
BNAs 1,2,4-TRICHLOROBENZENE
1, 4-DICHLOROBENZENE
2 -METHYLNAPHTHALENE
BENZO (A) ANTHRACENE
BENZO (B) FLUORANTHENE
BENZO (K) FLUORANTHENE
BIS (2-ETHYLHEXYL) PHTHALATE
BUTYLBENZYLPHTHALATE
CHRYSENE
DI-N-BUTYLPHTHALATE
NAPHALENE
Pest/PCBs 4,4-DDE
ALDRIN
AROCLOR 1248
ENDOSULFAN II
GAMMA- CHLORDANE
ALUMINUM
ARSENIC
BARIUM
CALCIUM
CHROMIUM
COBALT
COPPER
IRON
LEAD
MAGANESIUM
MANGANESE
NICKEL
POTASSIUM
SODIUM
VANADIUM
ZINC
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
j_i^-u\iur x j_i.i_i ui\iu£jr\ur
-------
                           SUMMARY STATISTICS FOR THE BENNINGTON SITE
ALL RESULTS IN UG/L OR  UG/KG,  EXCEPT INORGANIC SOIL RESULTS IN MG/KG AND AIR  RESULTS  IN UG/M3
-L -L±r£j
LJ± V £jI\O ± WIN
Num.
Times
Class Name Detected
VOCs METHYLENE CHLORIDE
BNAs 2, 4-DIMETHYLPHENOL
4-METHYLPHENOL
BIS (2-ETHYLHEXYL) PHTHALATE
DIETHYLPHALATE
Pest/PCBs 4, 4 '-ODD
4, 4 '-DDE
ALDRIN
DIELDRIN
ENDOSULFAN I
ENDOSULFAN II
ENDRIN ALDEHYDE
GAMMA- CHLORDANE
Inor. ALUMINUM
ARSENIC
BARIUM
CALCIUM
CHROMIUM
COBALT
COPPER
CYANIDE
IRON
LEAD
MAGNESIUM
MANGANESE
MERCURY
NICKEL
POTASSIUM
SILVER
SODIUM
VANADIUM
ZINC
2
1
1
2
1
1
2
2
1
1
1
1
2
3
3
3
3
3
3
3
2
3
3
3
3
2
2
3
2
2
3
3
U-L-L^n O£jU-l_rl£jl\l -L O
Num. Lowest
Samples Detected
Analyzed Cone.
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
2
3
3
3
3
3
3,
420,
420,
60,
420,
0,
0,
0,
0,
0,
0,
0,
0,
1770,
2,
10,
70400,
2,
4,
7,
0,
6840,
4,
25000,
258,
0,
6,
101,
2,
29,
2,
18,
.0000
.0000
.0000
.0000
.0000
.2600
.1100
.0670
.3400
.1000
.2200
.6200
.0290
.0000
.0000
.9000
.0000
.3000
.3000
.4000
.1300
.0000
.5000
.0000
.0000
.3200
.4000
.0000
.6000
.0000
.4000
.3000
Highest
Detected
Cone.
4,
420,
420,
770,
420,
0,
0,
0,
0,
0,
0,
0,
0,
4720,
2,
62,
99500,
4,
5,
33,
0,
12800,
34,
30300,
318,
0,
9,
478,
7,
63,
6,
38,
.0000
.0000
.0000
.0000
.0000
.2600
.8900
.1400
.3400
.1000
.2200
.6200
.3200
.0000
.3000
.5000
.0000
.8000
.6000
.5000
.1400
.0000
.2000
.0000
.0000
.3900
.2000
.0000
.4000
.2000
.4000
.7000
Highest
Cone.
Locat .
SED-15 (0-61
SED-16 (0-61
SED-16(0-6'
SED-11 (0-61
SED-16(0-6'
SED-11 (0-61
SED-11 (0-61
SED-11 (0-61
SED-11 (0-61
SED-11 (0-61
SED-11 (0-61
SED-11 (0-61
SED-11 (0-61
SED-16(0-6'
SED-15 (0-61
SED-11 (0-61
SED-15 (0-61
SED-11 (0-61
SED-16 (0-61
SED-11 (0-61
SED-11 (0-61
SED-16(0-6'
SED-11 (0-61
SED-15 (0-61
SED-16(0-6'
SED-11 (0-61
SED-16(0-6'
SED-16 (0-61
SED-11 (0-61
SED-15 (0-61
SED-16(0-6'
SED-11 (0-61
Arithmetic
Mean

')_4/29/93
') 4/29/93
')_4/29/93
') 10/6/92
')_4/29/93
') 10/6/92
') 10/6/92
')_10/6/92
') 10/6/92
')_10/6/92
') 10/6/92
')_10/6/92
') 10/6/92
') 4/29/93
')_4/29/93
')_10/6/92
') 4/29/93
')_10/6/92
') 4/29/93
')_10/6/92
') 10/6/92
')_4/29/93
') 10/6/92
') 4/29/93
')_4/29/93
') 10/6/92
')_4/29/93
') 4/29/93
')_10/6/92
') 4/29/93
') 4/29/93
')_10/6/92
Cone.
4.67
281.67
281.67
345.00
281.67
1.47
1.02
0.40
0.85
0.72
1.46
1.59
0.45
3120.00
2.10
36.83
81500.00
3.60
4.90
20.10
0.11
9590.00
16.00
28500.00
291.33
0.24
7.80
288.00
3.42
33.10
4.30
31.50
Lowest
Observed
Detect. Limit
14.000
410.000
410.000
410.000
410.000
4.100
4.100
2.000
0.310
2.000
4.100
4.100
2.000
.
.
.
.
.
.
.
0.120
.
.
.
.
0.010
.
.
0.490
14.200
.
.
Highest
Observed
Detect. Limit
14.00
440.00
440.00
410.00
440.00
4.20
4.10
2.00
4.10
2.10
4.20
4.20
2.00
.
.
.
.
.
.
.
0.12
.
.
.
.
0.01
.
.
0.49
14.20
.
.
-------
                           SUMMARY STATISTICS FOR THE BENNINGTON SITE
ALL RESULTS IN UG/L OR  UG/KG,  EXCEPT INORGANIC SOIL RESULTS IN MG/KG AND AIR  RESULTS  IN UG/M3
-L -L±r£j
±rwi\iuo/ or\w
Num.
Times
Class Name Detected
VOCs 2-BUTANONE
ACETONE
BNAs BIS(2-ETHYLhEXYL)PHTHALATE
Pest/PCBs 4, 4 '-ODD
4, 4 '-DDE
4, 4 '-DDT
ALDRIN
ALPHA-CHLORDANE
BETA-BHC
DIELDRIN
ENDOSULFAN I
ENDOSULFAN II
HEPTACHLOR
HEPTACHLOR EPOXIDE
Inor. ALUMINUM
ANTIMONY
ARSENIC
BARIUM
CALCIUM
CHROMIUM
COBALT
COPPER
CYANIDE
IRON
LEAD
MAGNESIUM
MANGANESE
NICKEL
POTASSIUM
SELENIUM
SILVER
VANADIUM
ZINC
3
3
6
2
3
3
1
1
2
3
1
1
2
2
9
1
9
9
9
9
9
9
3
9
9
9
9
8
9
2
1
9
8
wi\ o£jU-i_rmi\i J. o
Num. Lowest
Samples Detected
Analyzed Cone.
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
160.
480.
36
0.
0.
0.
0.
11.
0.
0.
0.
0.
0.
0.
1440.
9.
1.
27.
11200.
2.
7.
5.
0.
8400.
2.
3720.
426.
6.
94.
1.
1.
3.
14.
0000
0000
.000
1390
0770
3050
0630
0000
4700
0640
0430
7300
0170
0400
0000
4000
6000
8000
0000
9000
8000
4000
2700
0000
7000
0000
0000
3000
9000
3000
6000
7000
2000
Highest
Detected
Cone.
530.
2000.
260.
0.
3.
0000
0000
0000
2600
2000
0.38000
0.
11.
0.
0.
0.
0.
0.
0.
4490.
9.
64.
4170.
123000
17.
121.
26.
1.
182000
55.
53900.
13300.
21.
519.
4.
1.
15.
87.
0630
0000
5500
6700
0430
7300
0740
8100
0000
4000
2000
0000
.000
2000
0000
1000
0000
.000
3000
0000
0000
9000
0000
8000
6000
1000
4000
Highest
Cone.
Locat .
SED-06(0-6'
SED-06 (0-6'
SED-06(0-6'
SED-01 (0-6'
SED-06(0-6'
SED-09 (0-6'
SED-02 (0-6'
SED-06(0-6'
SED-07 (0-6'
SED-06(0-6'
SED-04 (0-6'
SED-06(0-6'
SED-02 (0-6'
SED-06(0-6'
SED-07 (0-6'
SED-07 (0-6'
SED-08 (0-6'
SED-06(0-6'
SED-03 (0-6'
SED-06(0-6'
SED-08 (0-6'
SED-02 (0-6'
SED-08 (0-6'
SED-04 (0-6'
SED-06(0-6'
SED-03 (0-6'
SED-08 (0-6'
SED-07 (0-6'
SED-06(0-6'
SED-06 (0-6'
SED-08 (0-6'
SED-06(0-6'
SED-06 (0-6'
Arithmetic
Mean

')_10/l/92
' ) 10/1/92
')_10/l/92
' ) 9/30/92
')_10/l/92
' ) 10/1/92
' ) 9/30/92
')_10/l/92
' ) 10/1/92
')_10/l/92
' ) 10/1/92
')_10/l/92
' ) 9/30/92
') 10/1/92
')_10/l/92
')_10/l/92
' ) 10/1/92
')_10/l/92
' ) 10/1/92
')_10/l/92
' ) 10/1/92
')_9/30/92
' ) 10/1/92
' ) 10/1/92
')_10/l/92
' ) 10/1/92
')_10/l/92
' ) 10/1/92
')_10/l/92
' ) 10/1/92
') 10/1/92
')_10/l/92
' ) 10/1/92
Cone.
115.42
345.42
139.89
2.01
2.46
1.37
1.81
2.52
1.61
2.16
1.80
2.68
1.71
1.28
2376.67
3.17
18.56
880.15
58083.33
7.12
33.22
13.12
0.25
39836.67
13.23
21180.00
3035.44
10.30
241.82
1.19
0.57
6.71
29.73
Lowest
Observed
Detect. Limit
11.000
11.000
380.000
0.460
3.800
0.160
1.900
1.900
1.900
3.800
1.900
3.800
2.000
1.900
.
2.500
.
.
.
.
.
.
0.60
.
.
.
.
14.400
.
0.460
0.460
.
26.400
Highest
Observed
Detect. Limit
17.00
17.00
420.00
11.00
11.00
11.00
11.00
5.40
11.00
11.00
11.00
11.00
11.00
5.40
.
14.40
.
.
.
.
.
.
0.44
.
.
.
.
14.40
.
6.20
2.60
.
26.40
-------
                               SUMMARY STATISTICS FOR THE BENNINGTON  SITE
    ALL RESULTS IN UG/L OR UG/KG, EXCEPT INORGANIC SOIL RESULTS  IN MG/KG AND AIR  RESULTS  IN UG/M3
                                   -TYPE-FIELD AREA SURFACE  SOIL
Class
VOCs
          Name
          ACETONE
          XYLENE  (TOTAL)
BNAs      BENZO(A)ANTHRACENE
          BIS(2-ETHYLHEXYL)PHTHALATE
          BUTLBENZYLPHALATE
          DI-NBUTYLPHTHALATE
          FLUORANTHENE
          PHENANTHRENE
          PYRENE
Pest/PCBS 4,4'-ODD
          4,4'-DDE
          4,4'-DDT
          ALDRIN
          AROCLOR 1016
          AROCLOR 1248
          DIELDRIN
          ENDOSULFAN I
          ENDOSULFAN II
          ENDRIN
          ENDRIN KETONE
          GAMMA-CHLORDANE
          HEPTACHLOR EPOXIDE
          METHOXYCHLOR
Inor.     ALUMINUM
          ARSENIC
          BARIUM
          BERYLLIUM
          CADMIUM
          CALCIUM
          CHROMIUM
          COBALT
          COPPER
          IRON
          LEAD
          MAGNESIUM
          MANGANESE
          MERCURY
          NICKEL
          POTASSIUM
          THALLIUM
          VANADIUM
          ZINC
  Num.          Num.       Lowest
  Times       Samples    Detected
Detected     Analyzed       Cone.
    1            5
    1            5
    1            5
    3            5
    1            5
    1            5
    1            5
    1            5
    2            5
    1            5
    3            5
    2            5
    1            4
    2           10
    3           10
    1            4
    1            5
    4            5
    1            5
    1            5
    1            3
    1            3
    2            5
    5            5
    3            5
    5            5
    1            5
    1            5
    5            5
    5            5
    5            5
    5            5
    5            5
    5            5
    5            5
    5            5
    1            5
    5            5
    5            5
    1            5
    5            5
    5            5
                                                                                Highest
                                                                               Detected
                                                                                  Cone.
Highest
Cone.
Locat.
Arithmetic
   Mean
   Cone.
   Lowest        Highest
  Observed       Observed
Detect. Limit  Detect. Limit
27,
14,
44,
100,
540,
49,
120,
73,
70,
0,
0,
0,
1,
4000,
67,
2,
8,
0,
0,
9,
2,
2,
2,
3220,
1,
23,
0,
1,
8270,
2,
6,
11,
13100,
6,
4830,
344,
0,
8,
161,
0,
5,
28,
.0000
.0000
.0000
.0000
.0000
.0000
.0000
.0000
.0000
.1700
.2500
.9800
.9000
.0000
.0000
.7000
.9000
.1300
.0610
.5000
.4000
.4000
.9000
.0000
.7000
.4000
.7400
.4000
.0000
.7000
.6000
.8000
.0000
.2000
.0000
.0000
.0700
.8000
.0000
.7500
.7000
.1000
27.
14.
44.
1100.
540.
49.
120.
73.
500.
0.
3.
6.
1.
6400.
11000.
2.
8.
3.
0.
9.
2.
2.
14.
8080.
4.
109.
0.
1.
119000
9.
62.
53.
39600.
52.
44300
1140.
0.
20.
834.
0.
10.
84.
0000
0000
0000
0000
0000
0000
0000
0000
0000
1700
9000
8000
9000
0000
0000
7000
9000
9000
0610
5000
4000
4000
0000
0000
5000
0000
7400
4000
.000
7000
8000
4000
0000
1000
.000
0000
0700
8000
0000
7500
9000
1000
LEACH(SS)-03(0-l')_10/2/92    10.30
SS-01(0-1')9/30/92             7.80
LEACH(SS)-03(0-l')_10/2/92   331.80
SS-01DL(0-1')_9/30/92        371.00
SS-01DL(0-l')_9/30/92        273.00
LEACH(SS)-04(0-1')_10/2/92   332.80
LEACH(SS)-04(0-1')_10/2/92   347.00
LEACH(SS)-04(0-l')_10/2/92   337.60
SS-01DL(0-1')_9/30/92        237.00
SS-150NNW(0-l')_10/5/92        1.54
SS-01(0-1')_9/30/92            1.64
SS-01(0-1')_9/30/92            2.01
SS-01(0-1')_9/30/92            0.97
SS-75NNW35W(0-l')_4/28/93   1079.30
SS-75NNW(0-l')_4/28/93      1348.15
SS-01(0-1')_9/30/92            1.86
SS-01(0-1')_9/30/92            2.34
SS-01(0-1')_9/30/92            1.57
SS-50E(0-1')_10/5/92           1.13
SS-01(0-1')_9/30/92            4.92
SS-01(0-1')_9/30/92            1.40
SS-01(0-1')_9/30/92            1.42
SS-01(0-1')_9/30/92            8.98
LEACH(SS)-03(0-1')_10/2/92  4766.00
SS-01(0-1')_9/30/92            2.10
LEACH(SS)-03(0-1')_10/2/92    50.74
LEACH(SS)-03(0-l')_10/2/92     0.27
SED-10 (0-6' ')_10/2/92          0.78
LEACH(SS)-03(0-1')_10/2/92 55794.00
LEACH(SS)-03(0-1')_10/2/92     6.48
SED-10(0-6'')_10/2/92         19.18
SED-10 (0-6' ')_10/2/92         27.46
LEACH(SS)-03(0-1')_10/2/92 22720.00
SS-01(0-1')_9/30/92           21.38
LEACH(SS)-04(0-1')_10/2/92 19804.00
SED-10 (0-6' ')_10/2/92        599.80
SED-10(0-6'')_10/2/92          0.04
LEACH(SS)-03(0-l')_10/2/92    13.70
LEACH(SS)-03(0-1')_10/2/92   457.80
LEACH(SS)-03(0-1')_10/2/92     0.44
LEACH(SS)-03(0-1')_10/2/92     7.52
LEACH(SS)-03(0-l')_10/2/92    59.40
                     12.000
                     12.000
                    390.80
                    390.000
                    390.000
                    390.000
                    390.000
                    390.000
                    390.000
                      3.600
                      3.600
                      0.320
                      0.330
                     36.000
                     36.000
                      1.900
                      0.140
                      3.900
                      0.250
                      3.600
                      1.800
                      1.800
                     18.000
                      1.000

                      0.230
                      1.200
                      0.060
                      0.700
                    13.00
                    13.00
                  2000.00
                   420.00
                   420.00
                  2000.00
                  2000.00
                  2000.00
                   420.00
                     3.90
                     3.70
                     3.60
                     1.80
                   370.00
                   430.00
                     3.90
                     1.90
                     3.90
                     3.90
                    19.00
                     1.80
                     1.90
                    19.00

                     1.00

                     0.45
                     1.30
                                    0.06
                                    0.76
-------
                           SUMMARY STATISTICS FOR THE BENNINGTON SITE
ALL RESULTS IN UG/L OR  UG/KG,  EXCEPT INORGANIC SOIL RESULTS IN MG/KG AND AIR  RESULTS  IN UG/M3
-L -L±r£j
rxiLXju J-IT\£J
Num.
Times
Class Name Detected
VOCs TOLUENE
BNAs BENZO (G, H, I ) PERYLENE
BIS (2-ETHYLHEXYL) PHTHALATE
BUTYLBENZYLPHTHALATE
NAPHTHALENE
PHENANTHRENE
PYRENE
Pest/PCBs 4, 4 '-ODD
4, 4 '-DDE
ALDRIN
ALPHA-CHLORDANE
AROCLOR 1248
DELTA-BHC
ENDOSULFAN I
ENDOSULFAN II
ENDOSULFAN SULFATE
ENDRIN
ENDRIN ALDEHYDE
ENDRIN KETONE
GAMMA- CHLORDANE
Inor. ALUMINUM
ARSENIC
BARIUM
CALCIUM
CHROMIUM
COBALT
COPPER
CYANIDE
IRON
LEAD
MAGNESIUM
MANGANESE
MERCURY
NICKEL
POTASSIUM
SELENIUM
SILVER
VANADIUM
ZINC
3
1
5
1
1
1
1
1
5
3
2
4
2
1
4
1
3
2
2
4
5
5
5
5
5
5
5
5
5
4
5
5
4
4
5
2
1
5
5
f\ our\rj-i^iL
Num.
Samples
Analyzed
5
5
5
5
5
5
5
5
5
4
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
4
5
5
5
4
5
5
1
5
5
OW-L J_l
Lowest
Detected

5
66
47
55
96
75
75
0
0
0
0
42
0
0
0
0
0
0
0
0
1170
1
11
4560
3
5
6
0
5250
9
1760
226
0.
3.
88
0
0
1
41
Cone.
.0000
.0000
.0000
.0000
.0000
.0000
.0000
.1900
.2700
.3400
.18
.0000
.1600
.0740
.1360
.2400
.0440
.2600
.2000
.0350
.0000
.6000
.9000
.0000
.8000
.1000
.5000
.1100
.0000
.0000
.0000
.0000
07000
1000
.3000
.6100
.7200
.8000
.9000
Highest
Detected
Cone.
9,
66,
85,
55,
96,
75,
75,
0,
2,
1,
0,
200,
0,
0,
0,
0,
0,
0,
1,
0,
6195,
4,
100,
73200,
7,
15,
13,
0,
26200,
41,
2480,
2380,
0,
8,
305,
0,
0,
8,
513,
.0000
.0000
.0000
.0000
.0000
.0000
.0000
.1900
.0000
.7000
.44
.00
.2700
.0740
.5200
.2400
.5400
.3700
.7000
.7900
.0000
.5000
.0000
.0000
.5000
.5000
.9000
.6200
.0000
.1000
.0000
.0000
.2000
.5000
.0000
.7800
.7200
.2000
.0000
Highest
Cone.
Locat .
SS-02 (O-l1 )
SS-05 (O-l1 )
SS-05 (O-l1 )
SS-03 (O-l1 )
SS-05 (O-l1 )
SS-05 (O-l1 )
SS-05 (O-l1 )
SS-02 (O-l1 )
SS-04 (O-l1 )
SS-04 (O-l1 )
SS-03 (O-l1 )
SS-03 (O-l1 )
SS-02 (O-l1 )
SS-02 (O-l1 )
SS-04 (O-l1 )
SS-02 (O-l1 )
SS-03 (O-l1 )
SS-02 (O-l1 )
SS-04 (O-l1 )
SS-04 (O-l1 )
SS-02 (O-l1 )
SS-05 (O-l1 )
SS-05 (O-l1 )
SS-04 (O-l1 )
SS-05 (O-l1 )
SS-05 (O-l1 )
SS-05 (01-' )
SS-05 (O-l1 )
SS-05 (O-l1 )
SS-05 (O-l1 )
SS-05 (O-l1 )
SS-05 (O-l1 )
SS-05 (O-l1 )
SS-05 (O-l1 )
SS-05 (O-l1 )
SS-02 (O-l1 )
SS-03 (O-l1 )
SED-12 (0-61
SS-04 (O-l1 )


_10/5/92
10/6/92
_10/6/92
10/5/92
_10/6/92
10/5/92
10/6/92
_10/5/92
10/6/92
_10/6/92
10/7/92
_10/7/92
10/5/92
10/5/92
_10/6/92
_10/5/92
10/7/92
_10/5/92
10/6/92
_10/6/92
10/5/92
_10/6/92
10/6/92
10/6/92
_10/6/92
10/6/92
_10/6/92
10/6/92
_10/6/92
10/6/92
10/6/92
_10/6/92
_10/6/92
10/6/92
_10/6/92
10/5/92
_10/5/92
) 10/6/92
10/6/92
Arithmetic
Mean
Cone.
6.90
189.60
61.60
207.00
195.20
191.00
191.00
1.92
1.05
1.17
0.89
111.80
0.82
0.95
0.87
1.93
1.25
1.59
1.84
0.39
3929.00
3.06
65.78
34103.00
5.59
8.90
10.90
0.31
13270.00
22.08
1224.00
968.40
0.11
5.72
219.96
0.45
0.72
5.86
150.70
Lowest
Observed
Detect. Limit
12.000
420.000
.
420.000
420.000
420.000
420.000
4.200
.
2.500
2.100
50.000
2.100
2.100
6.200
4.200
4.200
4.200
4.200
0.290
.
.
.
.
.
.
.
.
.
.
.
•
0.060
.
.
0.500
.
.
.
Highest
Observed
Detect. Limit
19.00
500.00
.
620.00
500.00
500.00
500.00
6.20
.
2.50
3.10

3.10
3.10
6.20
6.20
6.20
6.20
6.20
0.29
.
.
.
.
.
.
.
.
.
.
.
•
0.06
.
.
0.75
.
.
.
-------
                             SUMMARY STATISTICS FOR THE BENNINGTON SITE
ALL RESULTS IN UG/L OR UG/KG,  EXCEPT INORGANIC SOIL RESULTS IN MG/KG AND AIR RESULTS  IN UG/M3


Class Name
Pest/PCBs AROCLOR 1248
ALL RESULTS IN UG/L OR UG/KG,


Class Name
Inor. ALUMINUM
BARIUM
CALCIUM
CHROMIUM
IRON
MAGNESIUM
MANGANESE
POTASSIUM
SODIUM
Num.
Times
Detected
2
^£j ow-L-Ljo owuj.n wr j_i^-u\iur x j_ii
Num. Lowest
Samples Detected
Analyzed Cone.
8 60.0000
_i
Highest
Detected
Cone.
310.0000
SUMMARY STATISTICS FOR THE BENNINGTON SITE
EXCEPT INORGANIC SOIL RESULTS IN MG/KG AND AIR RESULTS
Num.
Times
Detected
1
2
2
1
2
2
2
2
2
*£* ow-L-Ljo U-L-L^n our\rj-i^iL vw-i±£jr
Num. Lowest
Samples Detected
Analyzed Cone.
2 73.0000
2 20.9000
2 61300.0000
2 7.6000
2 66.2000
2 13900.0000
2 15.5000
2 1680.0000
2 5720.0000
\
Highest
Detected
Cone.
73.0000
74.4000
96900.0000
7.6000
589.0000
22300.0000
380.0000
2630.0000
8340.0000
Highest
Cone.
Locat.
SS9-12_04/10/94
IN UG/M3
Highest
Cone.
Locat.
SWAT-12 4/30/93
SWAT-ll_4/30/93
SWAT-ll_4/30/93
SWAT-12_4/30/93
SWAT- 11 4/30/93
SWAT-ll_4/30/93
SWAT- 11 4/30/93
SWAT-12_4/30/93
SWAT-12 4/30/93
Arithmetic
Mean
Cone.
52.625

Arithmetic
Mean
Cone.
42.48
47.65
79100.00
5.55
327.60
18100.00
197.75
2155.00
7030.00
Lowest Highest
Observed Observed
Detect. Limit Detect. Limit
17.000 17.000

Lowest Highest
Observed Observed
Detect. Limit Detect. Limit
23.900 23.90


7.000 7.00





-------
SUMMARY STATISTICS FOR THE  BENNINGTON SITE
   ALL RESULTS IN UG/L OR UG/KG,  EXCEPT INORGANIC SOIL RESULTS IN MG/KG AND AIR  RESULTS IN UG/M3
±j.±r£j our\rj-i^iL owx j_io/ o£jU-i_rmi\i± ur\rt.xi\ij-i^riL r
Num. Num. Lowest
Times Samples Detected
Class Name Detected Analyzed Cone.
Pest/PCBs AROCLOR 1248 3 3 35.0000
SUMMARY STATI
ALL RESULTS IN UG/L OR UG/KG, EXCEPT IN
rn^TiTTi — T\r^


Class NAME
VOCs ACETONE
CARBON DISULFIDE
Pest/PCBs 4'4 -ODD
DIELDRIN
GAMMA-CHLORIDE
METHOXYCHLOR
Inor. ALUMINUM
ARSENIC
BARIUM
CALCIUM
CHROMIUM
COBALT
COPPER
CYANIDE
IRON
LEAD
MAGNESIUM
MANGANESE
NICKEL
ORGANIC CARBON, TOTAL
POTASSIUM
SILVER
SODIUM
TOTAL HARDNESS AS CAC03
VANADIUM
ZINC
Num.
Times
Detected
1
1
3
2
2
1
3
3
6
6
1
3
2
1
6
2
6
6
2
4
6
2
6
4
2
2
Num.
Samples
Analyzed
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
4
6
6
6
4
6
6
J. L rni — r*^
Low
W1MU
Highest Highe
Detected Cone,
Cone. Local
19000.0000 SS11-
STICS FOR THE BENNINC
"ORGANIC SOIL RESULTS
iNDS /BROOK SURFACE WA^
rest Highest
Detected
Cone.
10.
13.
0.
0.
0.
0.
39.
25.
227.
78400.
10.
5.
13.
2.
158.
16.
21700.
32.
14.
2.
4040.
2.
7500.
271.
11.
43.
0000
0000
0020
0010
0010
0090
2000
3000
0000
0000
3000
0000
7000
7000
0000
0000
0000
7000
0000
9000
0000
0000
0000
0000
6000
6000
Detected
Cone.
10.0000
13.0000
0.0065
0.0010
0.0020
0.0090
4490.0000
116.4000
9170.0000
178000.000
10.3000
154.0000
17.5000
2.7000
388500.000
39.5000
34300.0000
28200.0000
30.3000
10.2000
35100.000
3.4000
53500.0000
370.0000
12.5000
81.9000
sst Arithmetic
Mean
; . Cone .
- 04/18/94 9078.333
JTON SITE
IN MG/KG AND AIR RESULTS IN UG/M3
pfTl-p
L ILK
Highest
Cone.
Locat.
SWAT-07_
SWAT- 07
SWAT-06_
SWAT- 01
SWAT-01_
SWAT-06_
SWAT-07_
SWAT- 06
SWAT-06_
SWAT- 06
SWAT-07_
SWAT- 07
SWAT-07_
SWAT- 06
SWAT- 06
SWAT-06_
SWAT- 06
SWAT-07_
SWAT- 07
SWAT-06_
SWAT- 02
SWAT-07_
SWAT-02_
SWAT- 06
SWAT-06_
SWAT- 06



10/1/92
10/1/92
10/1/92
9/30/92
9/30/92
10/1/92
10/1/92
10/1/92
10/1/92
10/1/92
10/1/92
10/1/92
10/1/92
10/1/92
10/1/92
10/1/92
10/1/92
10/1/92
10/1/92
10/1/92
9/30/92
10/1/92
9/30/92
10/1/92
10/1/92
10/1/92
Arithmetic
Mean
Cone.
5.83
5.75
0.01
0.04
0.02
0.18
853.87
30.62
2262.50
108500.00
5.47
40.82
6.20
0.97
79348.00
10.58
29883.33
5929.62
11.05
5.92
15230.00
6.57
27633.33
329.25
5.35
23.58
Lowest Highest
Observed Observed
Detect. Limit Detect. Limit
Lowest
Observed
Detect
10.
3.
0.
0.
0.
0.
37.
4.
.
.
9.
4.
3.
1.
.
2.
.
.
11.
.
.
2.
.
.
4.
8.
. Limit
000
000
004
100
050
050
000
000


000
000
000
000

000


000


000


000
000
Highest
Observed
Detect. Limit.
10.00
10.00
0.12
0.12
0.06
0.62
37.00
4.00
.
.
9.00
4.00
3.00
2.30
.
10.00
.
.
11.00
.
.
62.00
.
.
4.00
8.00
-------
                 SUMMARY  STATISTICS  FOR THE BENNINGTON SITE - PHASE IB RESULTS
ALL RESULTS IN UG/L OR UG/KG,  EXCEPT INORGANIC SOIL RESULTS IN MG/KG AND AIR RESULTS IN UG/M3

Class NAME
Inor. ALUMINUM
BARIUM
CALCIUM
CYANIDE
IRON
MAGNESIUM
MANGANESE
POTASSIUM
SODIUM
Num.
Times
Detected
1
2
2
1
2
2
2
2
2
Num.
Samples
Analyzed
2
2
2
2
2
2
2
2
2
-L -L±r£j — ITJTLrtOIL
Lowest
Detected
Cone.
108.
36.
74900.
2.
141.
18700.
14.
3300.
5580.
0000
0000
0000
0000
0000
0000
5000
0000
0000
.to o ur\r j-i1— Hj M-rt..
Highest
Detected
Cone.
108
762.
91900
2.
344
24600.
92.
22600.
20700.
.000
0000
.000
0000
.000
0000
0000
0000
0000
L Hjl\
Highest
Cone.
Locat.
SW-16T-05
SW-15T-05
SW-16T-05
SW-16T-05
SW-15T-05
SW-15T-05
SW-15T-05
SW-15T-05
SW-15T-05
Arithmetic Lowest
Mean Observed
Cone. Detect. Limit
_05/19/94
05/19/94
_05/19/94
05/19/94
_05/19/94
05/19/94
05/19/94
_05/19/94
05/19/94
56,
399,
83400,
1,
242,
21650,
53,
7450,
13140,
.750 11.000
.400
.000
.500 2.000
.500
.000
.250
.000
.000
Highest
Observed
Detect. Limit.
11.000


2.000





                 SUMMARY  STATISTICS  FOR THE BENNINGTON SITE - PHASE IB RESULTS
ALL RESULTS IN UG/L OR UG/KG,  EXCEPT INORGANIC SOIL RESULTS IN MG/KG AND AIR RESULTS IN UG/M3

Class NAME
Inor. ALUMINUM
BARIUM
CALCIUM
IRON
MAGNESIUM
MANGANESE
POTASSIUM
SODIUM
ZINC
Num.
Times
Detected
2
2
2
2
2
2
2
2
2
Num.
Samples
Analyzed
2
2
2
2
2
2
2
2
2
	 1 !?£,— fJTLrtiHj
Lowest
Detected
Cone.
13.
37.
75100.
8.
18800.
6.
3430.
5640.
7.
7000
9000
0000
3000
0000
7000
0000
0000
4000
ID SUKrAUH WA.
Highest
Detected
Cone.
15.
757.
91800.
68.
24600.
69.
11600.
20800.
8.
6000
0000
0000
6000
0000
2000
0000
0000
3000
LUK - riljl£ji<
Highest
Cone.
Locat.
SW-16D-05
SW-15D-05
SW-16D-05
SW-15D-05
SW-15D-05
SW-15D-05
SW-15D-05
SW-15D-05
SW-15D-05
J1JJ 	
Arithmetic
Mean
Cone.
_05/19/94
05/19/94
05/19/94
_05/19/94
05/19/94
_05/19/94
05/19/94
_05/19/94
05/19/94
14.
397.
83450.
38.
21700.
37.
7515.
13220.
7.
,650
,450
,000
,450
,000
,950
,000
,000
,850
Lowest Highest
Observed Observed
Detect. Limit Detect. Limit

.
.
.
.
.
.
.
.
-------
                           SUMMARY STATISTICS FOR THE BENNINGTON SITE
ALL RESULTS IN UG/L OR UG/KG,  EXCEPT INORGANIC SOIL RESULTS IN MG/KG AND AIR RESULTS  IN UG/M3


Class NAME
VOCs ACETONE
TOLUENE
BNAs 1 , 4 - D I CHLOROBENZ ENE
2 -METHYLNAPHTHALENE
BENZO ( A) ANTERACENE
BENZO (A) PYRENE
BENZO (B) FLUORANTHENE
CHRYSENE
DI-N-BUTYLPETHALATE
FLUORANTHENE
N-NITROSO-DI-N-PROPYLAMINE
NAPHTHALENE
PYRENE
Pest/PCBs 4'4 -DDE
AROCLOR 1242
Inor. ALUMINUM
ARSENIC
BARIUM
BERYLLIUM
CALCIUM
CHROMIUM
COBALT
COPPER
CYANIDE
IRON
LEAD
MAGNESIUM
MANGANESE
MERCURY
NICKEL
POTASSIUM
SODIUM
VANADIUM
ZINC
Num.
Times
Detected
2
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
1
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
Num.
Samples
Analyzed
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
-L -L±r£j — Ur\rt.Xl\lJ-l^rI
Lowest
Detected
Cone.
115.0000
6.0000
110.0000
91.0000
120.0000
100.0000
230.0000
140.0000
78.0000
260.0000
310.0000
140.0000
268.0000
78.0000
72500.0000
5600.0000
12.9000
508.0000
0.3950
37400.0000
12.7000
7.0000
32.2000
0.2000
26400.0000
118.5000
10700.0000
338.0000
0.2300
12.3000
1930.0000
632.5000
13.7000
212.5000
LJ JT WIN.U onjUxriUjiM _L .,
Highest
Detected
Cone.
1100.0000
6.0000
110.0000
91.0000
120.0000
100.0000
230.0000
140.0000
78.0000
260.0000
310.0000
140.0000
260.0000
93.0000
100000.0000
9610.0000
27.5000
508.0000
0.3950
70300.0000
16.5000
12.1500
32.7000
0.4100
47500.0000
169.0000
17500.0000
806.5000
0.2400
16.9000
2000.0000
1110.0000
15.3000
221.0000
D
Highest
Cone.
Locat.
SED-24
SED-21
SED-24
SED-24
SED-24
SED-24
SED-24
SED-24
SED-21
SED-24
SED-24
SED-24
SED-24
SED-24
SED-24
SED-21
SED-24
SED-21
SED-21
SED-21
SED-21
SED-21
SED-24
SED-24
SED-21
SED-24
SED-21
SED-21
SED-21
SED-21
SED-21
SED-24
SED-21
SED-24
Arithmetic
Mean
Cone.
607.500
33.000
203.750
194.250
208.750
198.750
263.750
218.750
236.500
278.750
303.750
218.750
278.750
85.500
86250.000
7645.000
20.200
508.000
0.318
53850.000
14.600
9.575
32.450
0.305
36950.000
143.750
14100.000
572.250
0.235
14.600
1965.000
871.250
14.500
216.750
Lowest
Observed
Detect. Limit

120.000
595.000
595.000
595.000
595.000
595.000
595.000
790.000
595.000
595.000
595.000
595.000
.
.
.
.
.
0.480
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
Highest
Observed
Detect. Limit

120.000
595.000
595.000
595.000
595.000
595.000
595.000
790.000
595.000
595.000
595.000
595.000
.
.
.
.
.
0.480
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
-------
                                                  SUMMARY STATISTICS FOR THE BENNINGTON SITE -  PHASE  IB  RESULTS
                                  ALL RESULTS IN UG/L OR UG/KG, EXCEPT INORGANIC SOIL RESULTS IN MG/KG AND AIR RESULTS  IN UG/M3

Class NAME
Inor. ALUMINUM
ARSENIC
BARIUM
CALCIUM
CHROMIUM
COBALT
COPPER
IRON
LEAD
MAGNESIUM
MANGANESE
NICKEL
POTASSIUM
VANADIUM
ZINC
Num.
Times
Detected
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Num.
Samples
Analyzed
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
j. j.±r£j — ±rjru-io
Lowest
Detected
Cone.
2080.
5.
84.
37550.
4.
10.
7.
12100.
6.
17950.
1235.
8.
246.
3.
21.
0000
2500
4500
0000
6000
8000
6500
0000
3000
0000
0000
6500
5000
9000
7500
Hj -L j_> o u oi'iiLj r\o-Hj u
Highest
Detected
Cone.
2080.
5.
84.
37550.
4.
10.
7.
12100.
6.
17950.
1235.
8.
246.
3.
21.
0000
2500
4500
0000
6000
8000
6500
0000
3000
0000
0000
6500
5000
9000
7500
OHjUXriUjlM -L O
Highest
Cone.
Locat.
SED_
SED
SED_
SED
SED_
SED
SED
SED_
SED
SED_
SED
SED_
SED
SED_
SED
PC_
PC
PC_
PC
PC_
PC
PC
PC_
PC
PC_
PC
PC_
PC
PC_
PC
05/04/94
05/04/94
05/04/94
05/04/94
05/04/94
05/04/94
05/04/94
05/04/94
05/04/94
05/04/94
05/04/94
05/04/94
05/04/94
05/04/94
05/04/94
Arithmetic Lowest Highest
Mean Observed Observed
Cone. Detect. Limit Detect. Limit.
2080,
5,
84,
37550,
4,
10,
7,
12100,
6,
17950,
1235,
8,
246,
3,
21,
.000
.250
.450
.000
.600
.800
.650
.000
.300
.000
.000
.650
.500
.900
.750

98131M>
98131N>
981310>
98131P>
98131P1>
98131P2>
98131P3>
98131P4>
98131P5>
98131P6>
98131P7>
98131P8>
98131P9>
98131Q>
98131Q1>
98131Q2>
98131Q3>
98131Q4>
98131Q5>
-------
TABIiE E-15. ESTIMATED DIETARY CONTAMINANT CONCENTRATIONS FOR MUSKRAT AND STAR-NOSED MOIiE,AQUATIC HABITATS. BENNINGTON LANDFIIiL.
  Contaminant of Concern
Diversion Ditch
Copper
Cyanide
Lead
Mercury
Silver
Drainage Pond
N-Nitrosodi-n-propylamine
4,4-DDE
Aroclor 1242
Arsenic
Barium
Beryllium
Copper
Cyanide
Iron
Lead
Manganese
Mercury
Nickel
Zinc
Ponds B and C/Hewitt Brook
Acetone
Alpha-Chlordant
Endosulfan II
Antimony
Arsenic
Barium
Cobalt
Copper
Cyanide
Iron
Lead
Manganese
Nickel
Selenium
Silver
Sediment Cone.      Muskrat
 Mean    Maximum    Diet
(mg/kg)   (mg/kg)    Portion

2.01E+01  3.35E+01   0.01
1.10E-01  1.40E-01   0.01
1.60E+01  3.42E+01   0.01
2.40E-01  3.90E-01   0.01
3.42E+00  7.40E+00   0.01
                   Mole    Plant Concentration  Muskrat
                   Diet     Mean    Maximum      Diet
                  Portion  (mg/kg)   (mg/kg)      Portion
3.04E.01
8.55E-02
8.63E+01
2.02E+01
5.08E+02
3.18E-01
3.25E+01
3.05E-01
3.69E+04
1.44E+02
5.72E+02
2.35E-01
1.46E+01
3.10E-01
9.30E-02
l.OOE+02
 .75E+01
 .08E+02
 .95E-01
 .27E+01
 .10E-01
4.75E+04
  69E+02
  07E+02
  40E-01
  69E+01
2.17E+02  2.21E+02
3.45E-01
2.52E-03
7.30E-04
3.17E+00
1.96E+01
8.80E+02
3.32E+01
1.31E+01
2.50E-01
3.98E+04
1.32E+01
3.04E+03
  03E+01
  19E+00
2.00E+00
1.10E-02
7.30E-04
9.40E+00
 .42E+01
 .17E+03
 .21E+02
 .61E+01
 .OOE+00
1.82E+05
5.53E+01
1.33E+04
2.19E+01
4.80E+00
                           5.70E-01  1.60E+00
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01

0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.51
0.05
0.05
0.05
0.05

0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05

0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
                           8.04E-01  1.34E+00
                           0.OOE+00  0.OOE+00
                           7.20E-02  1.54E-01
                           2.16E-02  3.51E-02
                           1.37E-01  2.96E-01
2.21E-02
1.23E-05
3.98E-03
8.08E-02
7.62E+00
3.95E-04
1.30E+00
2.26E-02
1.34E-05
4.62E-03
1.10E-01
7.62E+00
3.18E-04
1.31E+00
                           0.OOE+00  0.OOE+00
 .48E+01
 .47E-01
 .43E+01
 .12E-02
8.76E-02
3.25E+01
                                     1.90E+01
                                     7.61E-01
  02E+01
  16E-02
  01E-01
5.08E-03
7.48E-05
1.02E-05
6.34E-02
7.42E-02
1.32E+01
6.64E-02
5.25E-01
0.OOE+00
1.59E+01
5.95E-02
7.59E+01
6.18E-02
2.98E-03
3.31E+01

2.94E-02
3.27E-04
1.02E-05
1.88E-01
2.57E-01
6.26E+01
2.42E.01
1.04E+00
0.OOE+00
7.28E+01
2.49E-01
3.33E+02
1.31E-01
1.20E-02
                                                                2.28E-02  6.40E-02
0.99
0.99
0.99
0.99
0.99

0.99
0.99
0.99
0.99
0.99
0.99
0.99
0.99
0.99
0.99
0.99
0.99
0.99
0.99

0.99
0.99
0.99
0.99
0.99
0.99
0.99
0.99
0.99
0.99
0.99
0.99
0.99
0.99
0.99
Worm Concentration
Mean Maximum
(mg/kg)
3.62E+00
2.75E-02
2.27E+00
6.48E-02
8.55E-01
1.79E-01
3.42E-01
2.02E+02
1.51E+00
4.66E+00
7.95E-02
5.80E+00
7.62E-02
4.57E+02
2.04E+01
6.32E+00
6.35E-02
3.65E+00
5.07E+02
1.50E-01
3.55E-03
1.13E-03
5.19E-02
1.39E+00
8.08E+00
3.16E+00
2.36E+00
6.25E-02
4.93E+02
1.88E+00
3.35E+01
2.58E+00
1.75E+00
1.42E.01
(mg/kg)
6.
3.
4.
1.
1.
1.
3.
2.
2.
4.
9.
5.
1.
5.
2.
8.
6.
4.
5.
8.
1.
1.
1.
4.
3.
1.
4.
2.
2.
7.
1.
5.
7.
4.
03E+00
50E-02
86E+00
05E-01
85E+00
83E-01
72E-01
34E+02
06E+00
66E+00
88E-02
89E+00
02E-01
88E+02
40E+01
92E+00
48E-02
22E+00
17E+02
70E-01
55E-02
13E-03
54E-01
82E+00
83E+01
15E+01
70E+00
50E-01
25E+03
85E+00
47E+02
47E+00
06E+00
OOE-01
Mole
Diet
Portion
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
.95
.95
.95
.95
.95
.95
.95
.95
.95
.95
.95
.95
.95
.95
.95
.95
.95
.95
.95
.95
.95
.95
.95
.95
.95
.95
.95
.95
.95
.95
.95
.95
.95
.95
Muskrat
Mean
(mg/kg)
9.
1.
2.
2.
1.
2.
8.
8.
2.
1.
3.
1.
3.
3.
2.
1.
2.
2.
3.
8.
9.
1.
9.
2.
2.
3.
6.
2.
4.
1.
1.
1.
1.
2.
, 97E-01
, 10E-03
.31E-01
,38E-02
.70E-01
, 49E-02
, 67E-04
, 66E-01
.82E-01
,26E+01
,57E-03
, 61E+00
, 05E-03
, 84E+02
, 08E+00
, 99E+01
,33E-02
.33E-01
,44E+01
,48E-03
, 93E-05
,74E-05
,45E-02
.59E-01
, 19E+01
.98E-01
.51E-01
,50E-03
, 14E+02
, 91E-01
, 05E+02
, 64E-01
,48E-02
, 83E-02
Diet 1
Maximum
(mg/kg)
1.
1.
4.
3.
3.
2.
9.
1.
3.
1.
4.
1.
4.
4.
2.
2.
2.
2.
3.
4.
4.
1.
2.
8.
1.
1.
1.
1.
1.
7.
4.
3.
5.
7.
66E+00
40E-03
94E-01
86E-02
67E-01
54E-02
43E.04
OOE+00
84E-01
26E+01
26E.03
62E+00
10E-03
94E+02
44E+00
80E+01
38E-02
69E-01
50E+01
91E-02
33E-04
74E-05
80E-01
96E-01
04E+02
45E+00
29E+00
OOE-02
89E+03
99E-01
62E+02
49E-01
99E-02
94E-02
4,
3,
2,
7,
9,
1,
3,
1,
2,
2,
9,
7,
1,
2,
2,
3,
7,
4,
4,
1,
3,
1,
2,
2,
5,
4,
2,
7,
2,
2,
1,
2,
1,
1,
Mole Diet 2
Mean Maximum
(mg/kg)
. 44E+00
. 16E-02
. 96E+00
.36E-02
. 83E-01
.86E-01
.29E-01
. 96E+02
. 45E+00
. 98E+01
. 14E-02
. 13E+00
. 18E-02
.28E+03
. 66E+01
. 46E+01
.20E-02
.20E+00
. 93E-02
. 60E-01
.50E-03
. HE-OS
.08E-01
.25E+00
. 17E+01
. 66E+00
. 90E+00
. 19E-02
. 46E+03
. 45E+00
. 84E+02
. 96E+00
.72E+00
. 64E-01
(mg/kg)
7.40E+00
4.03E-02
6.32E+00
1.20E-01
2.13E+00
1.89E-01
3.58E-01
2.27E+02
3.33+00
2.98E+01
1.14E-01
7.23E+00
1.18E-01
2.93E+03
3.12E+01
4.88E+01
7.36E-02
4.86E+00
5.02E+02
9.26E-01
1.53E-02
1.11E-03
6.16E-01
7.78E+00
2.45E+02
1.70E+01
5.77E+00
2.87E-01
1.12E+01
1.02E+01
8.05E+02
6.30E+00
6.94E+00
4.60E-01
  1  (Sediment Concentration)(Sediment Diet Portion for Muskrat) +  (Plant Concentration)(Plant Diet Portion for Muskrat)
  2  (Sediment Concentration)(Sediment Diet Portion for Mole) +(Worm Concentration)(Worm Diet Portion for Mole)
-------
TABIiE E-16. PCB CONCENTRATIONS OF BIOTA, BENNINGTON LANDFILL.
                            1.08E-02

                            2.45E+00
         Biota Species

         Araclor 1016

Field Habitat

      White-footed Mouse

      Short-tailed Shrew

         Aroclor 1242

Drainage Pond

          Muskrat

      Star-nosed Mole

          Crayfish 3

         Aroclor 1248

Field Habitat

      White-footed Mouse   1.35E-02

      Short-tailed Shrew   3.06E+00
                            Dietary Concentration
                             Mean       Maximum
                             (mg/kg)       (mg/kg)
              Biota PCB
           Bioaccumulation
               Factor 1
6.43E-02

1.45E+01
                                          1.11E-01

                                          2.50E+01
1.41E+00 a

1.41E+00 a
8.66E-01
1.96E+02
9.57E-03
l.OOE+00
2.27E+02
1.11E-02
5.25E+00 a
5.25E+00 a
2.40E+03 b
                5.25E+00 a

                5.25E+00 a
                 Biota Concentration 2
                 Mean            Maximum
                (mg/kg)           (mg/kg)
2.29E-03          1.36E-02

5.19E-01          3.07E+00
                                                                          6.82E-01          7.87E-01

                                                                          1.54E+02          1.79E+02

                                                                          2.30E+01          2.66E+01
                1.06E-02

                2.41E+00
Wooded Habitat

      White-footed Mouse   1.13E-03       2.01E-03        5.25E+00 a      8.90E-04

      Short-tailed Shrew   2.54E-01       4.54E-01        5.25E+00 a      2.00E-01

1 BAF from a) Garten and Trabalka  (1983) or b) Jorgensen et al.  (1991).

2 Biota concentration = Dietary Concentration x Biota, Bioaccumulation Factor.

      Note: Biota concentrations assume a 15% fat content for mammalian species.

3 Crayfish concentration = Pore Water Concentration  (mg/L) x Bioaccumulation Factor.

     Pore Water Concentration = Sediment Concentration/(Koc)(foe)
                  8.74E-02

                  1.97E+01




                  1.58E-03

                  3.57E-01
-------
    TABIiE E-17. ESTIMATED DIETARY CONTAMINANT CONCENTRATIONS FOR MINK AND  SCREECH OWL, BENNINGTON LANDFILL
                Mouse Concentration
Contaminant
                Mean      Maximum
                (mg/kg)     (mg/kg)

Field Habitat

Aroclor 1016   2.29E-03    1.36E-02

Aroclor 1248   1.06E-02    8.74E-02

Total PCBs     1.29E-02    1.01E-01

Wooded Habitat

Aroclor 1248   8.90E-04    1.58E-03
 Shrew Concentration

 Mean    Maximum
(mg/kg)   (mg/kg)
5.19E-01  3.07+00

2.41E+00  1.97E+01

2.93E+00  2.28E+01



2.00E-01  3.75E-01
Mink
Home
Range %
0.40
0.40
0.40
Owl Hoi
Range
0.03
0.03
0.03
                                                                0.10
                                                                            0.01
    Mink Diet

 Mean       Maximum
(mg/kg)      (mg/kg)
1.04E+01  6.17E-01

4.84E-01  3.96E+00

5.88E-01  4.57E+00



l.OOE-02  1.79E-02
    Owl Diet

 Mean     Maximum
(mg/kg)   (mg/kg)
7.82E-03  4.63E-02

3.63E-02  2.97E-01

4.41E-02  3.43E-01



l.OOE-02  1.79E-03
                Muskrat Concen.    Mole Concentration     Crayfish Concen.
Contaminant

                Mean     Maximum     Mean     Maximum     Mean     Maximum
                (mg/kg)    (mg/kg)     (mg/kg)    (mg/kg)     (mg/kg)    (mg/kg)

Drainage Pond

Aroclor 1242    6.82E-01  7.87E-01    1.54E+02  1.79E+02    2.30E+01    2.66E+01
                                          Mink      Owl
                                          Home      Home
                                          Range   Range %
                                                                Mink Diet
                  Mean     Maximum
                 (mg/kg)   (mg/kg)
                                          Owl Diet
               Mean     Maximum
              (mg/kg)    (mg/kg)
                                                                                  0.02      0.002     1.17E+00   1.36E+00    1.77E-01   2.06E-01
                                        TOTAL MINK DIETARY PCB  INTAKE  (MEAN)=  1.77 mg/kg
                                         TOTAL OWL DIETARY PCB  INTAKE  (MEAN)=  0.22 mg/kg

Note.  Mink diet assumes egual consumption  (weight basis) of small mammals,  muskrat  and crayfish  within each habitat.
Owl diet assumes egual consumption of small mammals and  crayfish  (drainage pond  only) within  each habitat.
-------
           SUMMARY STATISTICS  FOR THE  BENNINGTON SITE - PHASE 1A AND IB RESULTS
ALL RESULTS IN UG/L OR UG/KG,  EXCEPT INORGANIC SOIL RESULTS IN MG/KG AND AIR RESULTS IN UG/M3

Class NAME
VOCs CARBON DISULFIDE
METHYLENE CHLORIDE
Inor. ALUMINUM
ARSENIC
BARIUM
BERYLLIUM
CALCIUM
CHROMIUM
COBALT
COPPER
CYANIDE
IRON
LEAD
MAGNESIUM
MANGANESE
MERCURY
NICKEL
POTASSIUM
SILVER
SODIUM
VANADIUM
ZINC
Num.
Times
Detected
1
1
4
1
4
1
4
2
3
3
1
4
3
4
4
2
3
4
1
4
2
2
Num.
Samples
Lowest
Detected
Analyzed
5
5
4
3
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
3
1.
1.
229,
1.
25,
2,
53100,
17,
3,
3,
10,
608,
3,
15300,
55,
0,
5,
876,
2,
1660,
14,
78,
Cone.
.0000
.0000
.0000
.6000
.9000
.8000
.0000
.2000
.2000
.5000
.0000
.0000
.6000
.0000
.5000
.2000
.7000
.0000
.6000
.0000
.7000
.2000
-L J. r Hj J_> J-i1^ .
Highest
Detected
Cone.
1.
1.
45700.
1.
471.
2.
0000
0000
0000
6000
0000
8000
559000.000
89.
121.
143.
10.
167000
49.
226000
8120.
0.
98.
8460.
2.
5240.
69.
297.
7000
0000
0000
0000
.000
0000
.000
0000
4400
4000
0000
6000
0000
0000
0000
L\OT\WUI\I.U w v HjiMjurvunjiN o-
Highest
Cone.
Locat .
B-3-l_
B-3-1
B-3-1T
B-3-1T
B-3-1T
B-3-1T
4/28/93
01/25/94
_01/25/94
01/25/94
_01/25/94
01/25/94
B-3-1T 01/25/94
B-3-1T
B-3-1T
B-1-1T
B-3-1T
B-3-1T
B-3-1T
B-3-1T
B-3-1T
B-3-1T
B-3-1T
B-2-1T
B-3-1T
B-3-1T
B-3-1T
B-3-1T
_01/25/94
01/25/94
_01/25/94
01/25/94
_01/25/94
01/25/94
01/25/94
_01/25/94
_01/25/94
01/25/94
_01/25/94
01/25/94
_4/24/93
01/25/94
01/25/94
Arithmetic
Mean
Cone.
1.500
1.300
14434.750
1.533
166.415
1.075
20.475
36.525
47.000
3.313
51837.000
16.525
85475.000
2547.125
0.176
32.350
3416.500
1.400
2955.000
21.675
126.747
Lowest
Observed
Detect. Limit
1.000
1.000
.
2.000
.
1.000
7.000
2.000
3.000
2.000
.
3.000
.
.
0.040
5.000
.
2.000
.
3.000
10.200
Highest
Observed
Detect. Limit
10.000
7.000
.
4.000
.
1.000
7.000
2.000
3.000
2.500
.
3.000
.
.
0.090
5.000
.
2.000
.
3.000
10.200
-------
           SUMMARY STATISTICS  FOR THE  BENNINGTON SITE - PHASE 1A AND IB RESULTS
ALL RESULTS IN UG/L OR UG/KG,  EXCEPT INORGANIC SOIL RESULTS IN MG/KG AND AIR RESULTS IN UG/M3

Class NAME
Inor. ANTIMONY
BARIUM
CALCIUM
LEAD
MAGNESIUM
MANGANESE
MERCURY
POTASSIUM
SODIUM
Num.
Times
Detected
1
4
4
1
4
2
1
4
4
Num.
Samples
Lowest
Detected
Analyzed
4
4
4
4
4
4
4
4
4
3,
21.
53800,
1.
15100,
4,
0,
704,
1550,
Cone.
.8000
.4400
.0000
.0000
.0000
.3000
.2000
.0000
.0000
-L J. r Hj oj-i1— r\\
Highest
Detected
Cone.
3.
29.
88400.
1.
24200.
10.
0.
1030.
3070.
8000
7000
0000
0000
0000
2000
2000
0000
0000
JI\WU1M.U W V HjIMJUrvUHjlN '
Highest
Cone.
Locat
B-3-lD_
B-3-1D
B-3-lD_
B-3-1D
B-3-lD_
B-3-1D
B-3-1D
B-3-lD_
B-3-1D
•
11/2/93
11/2/93
11/2/93
11/2/93
11/2/93
4/26/93
11/2/93
11/2/93
4/21/93
Arithmetic
Mean
Cone.
3.450
24.300
71025.000
1.125
19975.000
3.875
0.085
818.500
2310.000
Lowest
Observed
Detect. Limit
2.000
.
.
2.000
.
1.000
0.040
.
.
Highest
Observed
Detect. Limit
9.000
.
.
3.000
.
1.000
0.200
.
.
-------
           SUMMARY STATISTICS  FOR THE  BENNINGTON SITE - PHASE 1A AND IB RESULTS
ALL RESULTS IN UG/L OR UG/KG,  EXCEPT INORGANIC SOIL RESULTS IN MG/KG AND AIR RESULTS IN UG/M3


Class NAME
Pest/PCBs 4, 4 '-DDE
ENDRIN
METHOXYCHLOR
Inor. ALUMINUM
ANTIMONY
ARSENIC
BARIUM
BERYLLIUM
CALCIUM
CHROMIUM
COBALT
COPPER
CYANIDE
IRON
LEAD
MAGNESIUM
MANGANESE
MERCURY
NICKEL
POTASSIUM
SODIUM
THALLIUM
VANADIUM
ZINC
Num.
Times
Detected
1
1
1
2
1
2
3
2
3
3
2
3
1
3
3
3
1
2
3
3
3
1
2
4
Num.
Samples
Analyzed
4
4
4
4
1
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
2
4
4
Lowest
Detected
Cone.
0.0030
0.0060
0.0100
2960.0000
3.0000
2.8000
17.6000
1.1000
8600.0000
7.0000
23.9000
3.0000
4.2000
49.7000
1.0000
2760.0000
7.2000
0.0900
9.0000
1050.0000
2970.0000
2.0000
6.7000
6.5000
-L -L.tr.Cj .EU-IV- r\o-i\v,
Highest
Detected
Cone.
0.0030
0.0060
0.0100
19600.0000
3.0000
3.0000
334.0000
1.5000
24500.0000
159.0000
55.8000
41.9000
4.2000
3490.0000
59.4000
10800.0000
1180.0000
0.2000
158.0000
5670.0000
4920.0000
2.0000
32.50000
142.0000
JU1M.U J_)ILjUI\W— J
Highest
Cone.
Locat .
B-4-3_0:
B-4-3 1:
B-4-3_0:
B-4-3T (
B-4-3T_
B-4-3T :
B-4-3T (
B-4-3TJ
B-4-3T (
B-4-3TJ
B-4-3T (
B-4-3T-I
B-4-3T :
B-4-3TJ
B-4-3TJ
B-4-3TJ
B-4-3T (
B-4-3T_
B-4-3T (
B-4-3TJ
B-4-3T •
B-4-3T_
B-4-3T (
B-4-3T (
Arithmetic
Mean
Cone.
0.
0.
0.
5647.
4.
2.
122.
0.
13429.
74.
20.
14.
4.
10138.
18.
4974.
440.
0.
65.
2360.
3034.
2.
10.
59.
038
039
190
750
000
200
275
900
837
125
550
975
425
050
525
250
675
122
250
250
875
500
425
400
Lowest
Observed
Detect. Limit
0,
0,
0,
7,
9,
2,
1,
1,
38,
7,
2,
3,
2,
5,
2,
14,
1,
0,
5,
62,
119,
6,
2,

.100
.100
.500
.000
.000
.000
.000
.000
.700
.000
.000
.000
.000
.000
.000
.000
.000
.200
.000
.000
.000
.000
.000

Highest
Observed
Detect. Limit
0.
0.
0.
55.
9.
4.
1.
1.
38.
7.
3.
3.
21.
5.
20.
14.
1.
0.
5.
62.
119.
6.
3.

100
100
500
000
000
000
000
000
700
000
000
000
000
000
000
000
000
200
000
000
000
000
000

-------
           SUMMARY STATISTICS FOR THE BENNINGTON SITE - PHASE 1A AND IB RESULTS
ALL RESULTS IN UG/L OR UG/KG, EXCEPT INORGANIC SOIL RESULTS IN MG/KG AND AIR RESULTS IN UG/M3


Class NAME
Inor. ALUMINUM
ANTIMONY
BARIUM
CALCIUM
COBALT
IRON
LEAD
MAGNESIUM
MANGANESE
MERCURY
NICKEL
POTASSIUM
SODIUM
THALLIUM
ZINC
Num.
Times
Detected
1
1
4
4
1
1
1
4
4
1
1
4
4
1
1
Num.
Samples
Analyzed
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
Lowest
Detected
Cone.
12.6000
3.0000
13.2000
7760.0000
3.0000
13.6000
1.0000
2670.0000
6.3000
0.2000
6.7000
1090.0000
3000.0006
2.0000
30.2000
-L J. r Hj OJ-i1— i\o-.
Highest
Detected
Cone.
12.6000
3.0000
1.4000
12000.0000
3.0000
13.6000
1.0000
3140.0000
133.0000
0.2000
6.7000
1360.0000
4670.0000
2.0000
30.2000
r\wui\i.u oiLjUi\w— 1\ o-tfv r
Highest
Cone.
Locat .
B-4-3D_6/ll/93
B-4-3D 11/4/93
B-4-3D_ll/4/93
B-4-3D 01/27/94
B-4-3D_4/29/93
B-4-3D 11/4/93
B-4-3D 11/4/93
B-4-3D 01/27/94
B-4-3D 02/27/94
B-4-3D_ll/4/93
B-4-3D 4/20/93
B-4-3D_4/29/93
B-4-3D-4/29/93
B-4-3D-11/4/93
B-4-3D 11/4/93
                                                                          Arithmetic       Lowest
                                                                            Mean          Observed
                                                                            Cone.      Detect. Limit
                                                                           18.000
                                                                            3.250
                                                                           16.425
                                                                         9565.000
                                                                            1.875
                                                                           16.038
                                                                            1.125
                                                                       2897.500
                                                                           58.825
                                                                            0.105
                                                                            4.425
                                                                         1202.500
                                                                         3687.500
                                                                            2.375
                                                                           10.413
28.600
 2.000
 2.000
11.900
 2.000
 0.040
 5.000
 3.000
 5.900
  Highest
  Observed
Detect. Limit

  55.000
   9.000
   4.000
  59.300
   3.000
   0.200
   9.000
   6.000
   9.000
-------
                     SUMMARY STATISTICS FOR THE BENNINGTON SITE
ALL RESULTS IN UG/L  OR UG/KG,  EXCEPT INORGANIC SOIL RESULTS IN MG/KG AND AIR RESULTS  IN  UG/M3

Num.
Times
Class NAME Detected
VOCs 1,1,1-TRICHLOROETHANE
BNAs 2, 4-DIMETHYLPHENOL
BIS (2-ETHYLHEXYL) PHTHALATE
DI-N-BUTYLPHTHALATE
Pest/PCBs. 4, 4 '-DDE
DIELDRIN
ENDOSULFAN II
ENDOSULFAN SULFATE
ENDRIN
HEPTACHLOR EPOXIDE
Inor. ALUMINUM
ARSENIC
BARIUM
CALCIUM
CHROMIUM
COBALT
COPPER
CYANIDE
IRON
MAGNESIUM
MANGANESE
MERCURY
NICKEL
POTASSIUM
SILVER
SODIUM
VANADIUM
ZINC
1
1
3
1
1
2
1
1
1
2
3
3
3
3
3
3
3
1
3
3
3
1
3
3
1
3
3
3
Num.
Samples
Analyzed
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
Lowest
Detected
Cone.
9.0000
57.0000
40.0000
40.0000
1.1000
0.0720
0.4500
0.1200
0.3000
0.0570
3980.0000
2.7000
43.1000
169.0000
4.5000
10.2000
6.7000
0.5000
11400.0000
243.0000
626.0000
0.0900
5.6000
401.0000
0.7100
10.9000
9.0000
24.9000
-L J. r Hj OJ-i1— IXO-JA
Highest
Detected
Cone.
9.
57.
60.
40.
1.
0.
0.
0.
0.
0.
8430.
4.
370.
15700.
10.
18.
15.
0.
21800.
5890.
5930.
0.
14.
541.
0.
39.
14.
74.
0000
0000
0000
0000
1000
6900
4500
1200
3000
1000
0000
9000
0000
0000
2000
0000
5000
5000
0000
0000
0000
0900
4000
0000
7100
6000
7000
9000
.WUIN.U o ur\r j-i1— Hj ow
Highest
Cone.
Locat .
BGS-01RE(0-
BGS-03 (0-1 '
BGS-03 (0-1 '
BGS-01 (0-1 '
BGS-02 (0-1 '
BGS-01 (0-1 '
BGS-01 (0-1 '
BGS-01 (0-1 '
BGS-02 (0-1 '
BGS-01 (0-1 '
BGS-03 (0-1 '
BGS-03 (0-1 '
BGS-03 (0-1 '
BGS-03 (0-1 '
BGS-03 (0-1 '
BGS-02 (0-1 '
BGS-03 (0-1 '
BGS-03 (0-1 '
BGS-03 (0-1 '
BGS-03 (0-1 '
BGS-03 (0-1 '
BGS-03 (0-1 '
BGS-03 (0-1 '
BGS-03 (0-1 '
BGS-03 (0-1 '
BGS-03 (0-1 '
BGS-03 (0-1 '
BGS-03 (0-1 '
-LJ_i

l')_9/28/92
) 9/28/92
)_9/28/92
) 9/28/92
)_9/28/92
) 9/28/92
) 9/28/92
)_9/28/92
) 9/28/92
)_9/28/92
) 9/28/92
)_9/28/92
) 9/28/92
) 9/28/92
)_9/28/92
)_9/28/92
) 9/28/92
)_9/28/92
) 9/28/92
)_9/28/92
) 9/28/92
)_9/28/92
) 9/28/92
) 9/28/92
)_9/28/92
) 9/28/92
)_9/28/92
) 9/28/92
Arithmetic
Mean
Cone.
7.333
155.667
47.333
160.000
1.883
1.021
1.617
1.507
1.533
0.462
6313.333
3.767
155.633
5559.667
7.400
14.833
11.833
0.187
17000.000
2497.667
2406.000
0.050
10.067
472.000
0.400
23.867
11.233
47.067
Lowest
Observed
Detect. Limit
12,
400,

424,
4,
4,
4,
4,
4,
2,







0,



0,


0,



.000
.000

.000
.500
.600
.200
.200
.000
.300







.060



.060


.480



Highest
Observed
Detect. Limit
14.000
420.000
.
440.000
4.600
4.600
4.600
4.600
4.600
2.300
.
.
.
.
.
.
.
0.060
.
.
.
0.060
.
.
0.500
.
.
.
-------
                     SUMMARY STATISTICS FOR THE BENNINGTON SITE
ALL RESULTS IN UG/L  OR UG/KG,  EXCEPT INORGANIC SOIL RESULTS IN MG/KG AND AIR RESULTS  IN  UG/M3

Num.
Times
Class NAME Detected
VOCs BIS (2-ETHYLHEXYL) PETHALATE
DI-N-BUTYLPHTHALATE
Pest/PCBs 4, 4 '-DDE
DIELDRIN
ENDRIN
Inor. ALUMINUM
ARSENIC
BARIUM
CALCIUM
CHROMIUM
COBALT
COPPER
IRON
LEAD
MAGNESIUM
MANGANESE
NICKEL
POTASSIUM
SODIUM
VANADIUM
ZINC
3
1
1
1
1
3
3
3
3
3
3
3
3
1
3
3
3
3
3
3
3
Num.
Samples
Analyzed
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
Lowest
Detected
Cone.
34.
35.
0.
0.
0.
3070.
2.
33.
236.
5.
15.
6.
10900.
8.
360.
691.
7.
199.
20.
6.
18.
0000
0000
3900
1000
0720
0000
3000
8000
0000
9000
3000
1000
0000
9000
0000
0000
8000
0000
2000
1000
8000
-L -L.tr.Cj .EU-IV- r\o-i\v,
Highest
Detected
Cone.
45.
35.
0.
0.
0.
8980.
4.
81.
1490.
12.
21.
24.
25600.
8.
2250.
756.
18.
66.
24.
12.
50.
0000
0000
3900
1000
0720
0000
3000
8000
0000
4000
1000
8000
0000
9000
0000
0000
2000
0000
3000
6000
6000
JUIM.U ouoo ur\r j-i1— Hj
Highest
Cone.
Locat .
BGS-02(2-3'
BGS-01 (2-3 '
BGS-01(2-3'
BGS-01 (2-3 '
BGS-01 (2-3 '
BGS-02 (2-3 '
BGS-03 (2-3 '
BGS-01 (2-3 '
BGS-03 (2-3 '
BGS-02 (2-3 '
BGS-02 (2-3 '
BGS-02 (2-3 '
BGS-02 (2-3 '
BGS-03 (2-3 '
BGS-02 (2-3 '
BGS-03 (2-3 '
BGS-02 (2-3 '
BGS-02 (2-3 '
BGS-02 (2-3 '
BGS-02 (2-3 '
BGS-02 (2-3 '
OW-L J_lO
Arithmetic Lowest
Mean Observed
Cone. Detect. Limit
)_9/28/92
) 9/28/92
)_9/28/92
) 9/28/92
)_9/28/92
) 9/28/92
) 9/28/92
)_9/28/92
) 9/28/92
)_9/28/92
) 9/28/92
)_9/28/92
) 9/28/92
) 9/28/92
)_9/28/92
)_9/28/92
) 9/28/92
)_9/28/92
) 9/28/92
)_9/28/92
) 9/28/92
40.
136.
1.
1.
1.
5436.
3.
55.
656.
8.
18.
14.
18000.
6.
1253.
731.
11.
426.
22.
9.
33.
000
667 370.000
380 3.700
283 3.700
274 3.700
667
433
700
667
767
667
467
000
767 8.500
333
000
867
000
667
233
667
Highest
Observed
Detect. Limit
.
380.000
3.800
3.800
3.800
.
.
.
.
.
.
.
.
14.300
.
.
.
.
.
.
.
-------
                     SUMMARY STATISTICS FOR THE BENNINGTON SITE
ALL RESULTS IN UG/L  OR UG/KG,  EXCEPT INORGANIC SOIL RESULTS IN MG/KG AND AIR RESULTS  IN  UG/M3


Class NAME
VOCs METHYLENE CHLORIDE
TOLUENE
Pest/PCBs 4, 4 '-DDE
4, 4 '-DDT
DIELDRIN
ENDOSULFAN II
ENDRIN
GAMMA- BHC (LINDANE)
Inor. ALUMINUM
ANTIMONY
ARSENIC
BARIUM
CADMIUM
CALCIUM
CHROMIUM
COBALT
COPPER
IRON
LEAD
MAGNESIUM
MANGANESE
MERCURY
NICKEL
POTASSIUM
SODIUM
VANADIUM
ZINC
Num.
Times
Detected
1
1
1
1
1
1
1
1
1
1
1
2
1
2
2
2
2
2
1
2
2
2
2
2
1
2
2
Num.
Samples
Analyzed
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
Lowest
Detected
Cone.
17.0000
28.0000
0.1500
0.9700
0.3500
0.1100
0.2500
0.0820
7120.0000
4.7000
4.2000
61.0000
2.0000
4250.0000
12.3000
5.7000
6.5000
13500.0000
14.4000
1750.0000
566.0000
0.0900
11.7000
416.0000
1600.0000
12.3000
40.7000
-L -L.tr.Cj .EU-IV- r\o-i\v,
Highest
Detected
Cone.
17.0000
28.0000
0.1500
0.970
0.3500
0.1100
0.2500
0.0820
16000.0000
4.7000
4.2000
105.0000
2.0000
10200.0000
19.9000
12.9000
17.1000
27200.0000
14.4000
3920.0000
754.0000
0.1500
19.0000
753.0000
1600.0000
26.2000
75.3000
JU1M.U OHjUXriUjlM -L O
Highest
Cone.
Locat .
BGSED-01(0-6' '
BGSED-01 (0-6' '
BGSED-01(0-6' '
BGSED-02 (0-6' '
BGSED-02 (0-6' '
BGSED-02 (0-6' '
BGSED-02 (0-6' '
BGSED-02 (0-6' '
BGSED-01 (0-6' '
BGSED-01 (0-6' '
BGSED-01 (0-6' '
BGSED-01 (0-6' '
BGSED-01 (0-6' '
BGSED-01 (0-6' '
BGSED-01 (0-6' '
BGSED-01 (0-6' '
BGSED-01 (0-6' '
BGSED-01 (0-6' '
BGSED-01 (0-6' '
BGSED-01 (0-6' '
BGSED-01 (0-6' '
BGSED-01 (0-6' '
BGSED-01 (0-6' '
BGSED-01 (0-6' '
BGSED-01 (0-6' '
BGSED-01 (0-6' '
BGSED-01 (0-6' '



)_9/28/92
) 9/28/92
)_9/28/92
) 9/28/92
)_9/28/92
) 9/28/92
) 9/28/92
)_9/28/92
) 9/28/92
)_9/28/92
) 9/28/92
)_9/28/92
) 9/28/92
) 9/28/92
)_9/28/92
)_9/28/92
) 9/28/92
)_9/28/92
) 9/28/92
)_9/28/92
) 9/28/92
)_9/28/92
) 9/28/92
) 9/28/92
)_9/28/92
) 9/28/92
)_9/28/92
Arithmetic
Mean
Cone.
12.500
18.000
1.425
1.910
1.600
1.480
1.550
0.766
11560.000
3.250
2.425
83.000
1.400
7225.000
16.100
9.300
11.800
20350.000
7.362
2835.000
660.000
0.120
15.350
584.500
802.600
19.250
58.000
Lowest
Observed
Detect. Limit
16.000
16.000
5.400
5.700
5.700
5.700
5.700
2.900
.
3.600
1.300
.
1.600
.
.
.
.
.
0.650
.
.
.
.
.
10.400
.
.
Highest
Observed
Detect. Limit
16.000
16.000
5.400
5.700
5.700
5.700
5.700
2.900
.
3.600
1.300
.
1.600
.
.
.
.
.
0.650
.
.
.
.
.
10.400
.
.
-------
                     SUMMARY STATISTICS FOR THE BENNINGTON SITE
ALL RESULTS IN UG/L  OR UG/KG,  EXCEPT INORGANIC SOIL RESULTS IN MG/KG AND AIR RESULTS  IN  UG/M3

Class NAME
Pest/PCBs 4, 4 '-DDE
ALDRIN
DIELDRIN
ENDRIN
GAMMA- BBC (LINDANE)
HEPTACHLOR
Inor. ALUMINUM
BARIUM
CALCIUM
IRON
LEAD
MAGNESIUM
MANGANESE
POTASSIUM
SODIUM
ZINC
Num.
Times
Detected
1
1
1
1
1
1
1
2
2
2
1
2
2
2
2
2
Num.
Samples
Analyzed
2
2
2
2
2
1
2
2
2
2
2
2
2
2
2
2
Lowest
Detected
Cone.
0.
0.
0.
0.
0.
0.
1740.
16.
26100.
72.
5.
11500.
32.
794.
708.
7.
0310
0010
0070
0070
0030
0030
0000
0000
0000
8000
8000
0000
4000
0000
0000
6000
-L J. r Hj OJ-i1— ixo-i
Highest
Detected
Cone.
0
0
0
0
0
0
1740
35
69300
2190
5
17100
230
1520
18500
12
.0310
.0010
.0070
.0070
.0030
.0030
.0000
.6000
.0000
.0000
.8000
.0000
.0000
.0000
.0000
.0000
\wui\iu o ur\r j-i1— Hj
Highest
Cone.
Locat .
BGSWAT-02
BGSWAT-02
BGSWAT-02
BGSWAT-02
BGSWAT-02
BGSWAT-02
BGSWAT-02
BGSWAT-02
BGSWAT-01
BGSWAT-02
BGSWAT-02
BGSWAT-02
BGSWAT-02
BGSWAT-01
BGSWAT-01
BGSWAT-02
vv.rt.±£jr\
Arithmetic Lowest
Mean Observed
Cone. Detect. Limit
_5/26/93
5/26/93
_5/26/93
5/26/93
_5/26/93
5/26/93
5/26/93
_5/26/93
5/26/93
_5/26/93
5/26/93
_5/26/93
5/26/93
5/26/93
_5/26/93
5/26/93
0,
0,
0,
0,
0,
0,
871,
25,
47700,
1131,
3,
14300,
131,
1157,
9604,
9,
.041 0.100
.013 0.050
.029 0.100
.029 0.100
.014 0.050
.003
.750 7.000
.800
.000
.400
.650 3.000
.000
.200
.000
.000
.800
Highest
Observed
Detect. Limit
0.100
0.050
0.100
0.100
0.050
.
7.000
.
.
.
3.000
.
.
.
.
.
-------
           SUMMARY STATISTICS  FOR THE  BENNINGTON SITE - PHASE 1A AND IB RESULTS
ALL RESULTS IN UG/L OR UG/KG,  EXCEPT INORGANIC SOIL RESULTS IN MG/KG AND AIR RESULTS IN UG/M3

Class NAME
VOCs 1,1,1-TRICHLOROETHANE
1, 1-DICHLOROETHANE
1, 1-DICHLOROETHENE
1, 2-DICHLOROETHANE
1,2-DICHLOROETHENE (TOTAL)
1, 2-DICHLOROPROPANE
2-BUTANONE
ACETONE
BENZENE
CARBON DISULFIDE
CHLOROBENZENE
CHLOROETHANE
ETHYLBENZENE
METHYLENE CHLORIDE
TETRACHLOROETHENE
TOLUENE
TRI CHLOROETHENE
VINYL CHLORIDE
XYLENE (TOTAL)
BNAs 1,2, 4-TRIMETHYLBENZENE
1, 2-DICHLOROBENZENE
1, 3, 5-TRIMETHYLBENZENE
1, 4-DICHLOROBENZENE
2-CHLOROTOLUENE
2-METHYLPHENOL
4-CHLORO-3-METHYLPHENOL
4 - I SOPROPYLTOLUENE
4-METHYLPHENOL
BIS (2-ETHYLHEXYL) PHTHALATE
DI-N-BUTYLPHTHALATE
DIETHYLPHTHALATE
ISOPROPYLBENZENE
N-PROPYLBENZENE
NAPHTHALENE
PHENOL
SEC-BUTYLBENZENE
Num.
Times
Detected
5
19
3
1
8
1
2
14
14
2
10
21
5
11
5
6
4
7
2
2
2
2
6
1
3
1
2
3
6
4
1
2
2
1
2
2
Num.
Samples
Analyzed
55
56
55
55
55
55
55
55
55
55
55
55
55
55
55
55
55
55
41
34
55
34
55
34
45
45
34
45
45
45
45
34
34
55
45
34
Lowest
Detected

200,
0,
4,
0,
0,
1.
4,
2,
0,
1.
1.
2,
0,
1.
0,
4,
7,
0,
1.
16,
0,
5,
0,
1,
7,
5,
1,
32,
1,
1,
7,
1,
1,
7,
4,
0,
Cone.
.0000
.9000
.0000
.9000
.6000
.0000
.0000
.0000
.8000
.0000
.0000
.0000
.5500
.0000
.7000
.5000
.0000
.7000
.0000
.0000
.5000
.0000
.6000
.0000
.0000
.0000
.0000
.0000
.0000
.0000
.0000
.0000
.0000
.0000
.0000
.5000
-L J. JT Hj .cu-iv- r\\
Highest
Detected
Cone.
660.
1800.
30.
0.
4050.
1.
6.
180.
25.
1.
7.
150.
200.
180.
70.
1650.
53.
95.
49.
20.
3.
12.
2.
1.
62.
5.
2.
115.
3.
1.
7.
2.
2.
7.
10.
0.
0000
0000
0000
9000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
5000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
9000
JI\WU1M.U VV.rt.-L Hj.T\/ WVHjIMJ
Highest
Cone.
Locat .
B-6-1
B-6-1
B-6-1
B-5-2
B-6-1
B-14
B-5-1
B-5-1
B-6-1
B-l-2
B-14
B-14_
_05/17/94
4/30/93
_05/17/94
05/16/94
_4/30/93
05/20/94
6/8/93
_4/27/93
4/30/93
_01/24/94
05/20/94
05/20/94
B-6-1DL 6/9/93
B-6-1
B-6-1
B-6-1
B-6-1
B-14_
B-6-1
B-14_
B-14
B-6-1
B-14
B-6-1
B-6-1
B-14
B-14_
B-6-1
B-14_
B-l-1
B-14
B-14_
B-6-1
B-14_
B-5-1
B-6-1
4/30/93
_05/17/94
_4/30/93
4/30/93
05/20/94
4/30/93
05/20/94
05/20/94
_05/17/94
05/20/94
05/17/94
_4/30/93
05/20/94
05/20/94
4/30/93
05/20/94
4/26/92
05/20/94
05/20/94
05/17/94
05/20/94
4/27/93
05/17/94
Arithmetic
Mean
Cone.
43.473
132.766
5.073
4.407
192.267
4.409
7.045
13.823
5.315
4.336
4.491
16.673
6.901
12.986
6.104
56.309
6.045
8.398
6.817
2.265
2.355
1.706
2.260
1.250
7.233
5.000
1.294
8.867
5.122
4.072
4.967
1.294
1.294
2.427
5.089
1.247
Lowest
Observed
Detect. Limit
1.000
1.000
1.000
1.000
1.000
1.000
5.000
5.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
10.000
10.000
1.000
10.000
6.000
1.000
3.000
1.000
1.000
1.000
10.000
1.000
Highest
Observed
Detect. Limit
10.000
10.000
200.000
200.000
10.000
200.000
200.000
200.000
200.000
200.000
200.000
200.000
50.000
150.000
50.000
50.000
200.000
200.000
200.000
50.000
10.000
50.000
10.000
50.000
10.000
10.000
50.000
10.000
28.000
10.000
10.000
50.000
50.000
10.000
10.000
50.000
-------
Pest/PCBs
Inor.
4,4'-DDD
4,4'-DDT
ALDRIN
AROCLOR 1221
DIELDRIN
ENDOSULFAN II
ENDOLSULFAN SULFATE
ENDRIN
ENDRIN ALDEHYDE
ENDRIN KETONE
GAMMA-BHC  (LINDANE)
GAMMA-CHLORDANE
HEPTACHLOR
ALUMINUM
ARSENIC
BARIUM
2
3
3
10
6
2
1
3
2
1
1
1
5
40
27
42
44
43
43
51
43
43
43
43
42
42
43
21
37
44
38
43
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
114,
1.
26,
.0040
.0040
.0010
.5600
.0010
.0080
.0050
.0010
.0050
.0010
.0010
.0020
.0020
.0000
.2000
.7000
0.0100
0.0190
0.0020
7.3000
0.0100
0.0090
0.0050
0.0040
0.0340
0.0010
0.0010
0.0020
0.0050
102000.000
17.1000
4270.0000
B-17_05/18/94
B-5-2_ll/2/93
B-17_05/18/94
B-5-2U_05/16/94
B-12_6/9/93
B-15_05/18/94
B-15_05/18/94
B-6-l_ll/2/93
PZ-SOL_4/30/93
B-12_6/9/93
B-6-l_ll/2/93
PZ-SOL_4/30/93
B-l-2_4/26/92
B-7-lT_01/26/94
B-5-lT_6/8/93
B-5-2T 01/25/94
0.047
0.032
0.023
1.122
0.041
0.045
0.045
0.043
0.048
0.054
0.023
0.142
0.017
11476.952
5.033
845.327
0.010
0.004
0.050
0.500
0.003
0.003
0.002
0.001
0.050
0.100
0.003
0.050
0.001
44.300
2.000
24.100
0.100
0.100
0.050
2.000
0.100
0.100
0.100
0.100
0.100
0.500
0.050
5.000
0.050
351.000
4.000
24.100
-------


Class NAME
BERYLLIUM
CALCIUM
CHROMIUM
COBALT
COPPER
CYANIDE
IRON
LEAD
MAGNESIUM
MANGANESE
MERCURY
NICKEL
POTASSIUM
SODIUM
VANADIUM
ZINC
Num.
Times
Detected
10
44
21
40
34
10
44
26
44
43
18
32
44
44
27
26
Num.
Samples
Analyzed
44
44
44
44
44
44
44
44
44
43
44
44
44
44
44
44
]
De

1.
39100,
7,
6,
3,
2,
586,
1,
20100,
78,
0,
6,
677,
1130,
2,
3,
Lowest
stected
Cone.
.3000
.0000
.1000
.5000
.0000
.0000
.0000
.0000
.0000
.6000
.0500
.2000
.0000
.0000
.7000
.1000
-L J. Jr Hj J_> f\\~, J
Highest
Detected
Cone.
5.4000
2350000.00
145.0000
290.0000
322.0000
5.0000
286000.000
120.0000
1020000.00
23000.0000
0.5200
247.0000
37800.0000
975000.000
143.0000
614.0000
           SUMMARY STATISTICS FOR THE BENNINGTON SITE -  PHASE  1A AND  IB  RESULTS
ALL RESULTS IN UG/L OR UG/KG, EXCEPT INORGANIC SOIL RESULTS  IN MG/KG  AND AIR RESULTS  IN UG/M3

                              TYPE-BACKGROUND WATER/OVERBURDEN
                                            (continued)

                                             Highest
                                             Cone.
                                             Locat.

                                           B-16T_05/18/94
                                           B-7-lT_01/26/94
                                           B-16T_05/18/94
                                           B-S-lT_01/25/94
                                           B-S-lT_01/25/94
                                           B-14T_05/20/94
                                           B-5-lT_01/25/94
                                           B-5-lT_01/25/94
                                           B-7-lT_01/26/94
                                           B-14T_05/20/94
                                           B-6-lT_ll/2/93
                                           B-5-lT_01/25/94
                                           B-5-lT_02/25/94
                                           B-l-lT_01/24/94
                                           B-7-lT_01/26/94
                                           B-7-1T-01/26/94
Arithmetic
Mean
Cone.
1.
260768.
24.
46.
37.
1.
40382.
15.
100425.
2750.
0.
38.
8937.
45880.
19.
76.
023
182
849
843
382
674
114
580
000
653
114
931
114
341
880
840
Lowest
Observed
Detect. Limit
1.000

7.000
2.000
3.000
2.000

1.000


0.040
5.000


3.000
2.000
Highest
Observed
Detect. Limit
1.000
.
10.000
3.000
3.000
5.000
.
3.000
.
.
0.200
9.000
.
.
3.000
140.000
-------


Class NAME
Past/PCBs AROCLOR 1221
Inor. ALUMINUM
ANTIMONY
ARSENIC
BARIUM
CALCIUM
CHROMIUM
COBALT
COPPER
IRON
LEAD
MAGNESIUM
MANGANESE
MERCURY
NICKEL
POTASSIUM
SELENIUM
SODIUM
THALLIUM
VANADIUM
ZINC
Num.
Times
Detected
5
7
6
27
43
43
3
29
1
30
7
44
36
14
17
44
4
43
1
2
7
Num.
Samples
Analyzed
7
44
44
44
43
44
44
44
44
44
44
44
43
44
44
44
44
44
44
44
44
± j. r Hj ^jr\
Lowest
Detected
Cone.
0.7250
7.1000
3.0000
1.0000
11.0000
17100.0000
7.0000
3.0000
3.2000
4.6000
1.0000
5630.0000
2.0000
0.0400
5.5000
599.0000
2.0000
1650.0000
10.0000
2.0000
2.4000
      SUMMARY STATISTICS FOR THE BENNINGTON SITE - PHASE 1A AND IB RESULTS
ALL RESULTS IN UG/L OR UG/KG, EXCEPT INORGANIC SOIL RESULTS IN MG/KG AND AIR RESULTS IN UG/M3

                        TYPE-GROUND WATER/OVERBURDEN - FILTERED
                                       Highest
                                    Detected
                                         Cone.
    32.
     3.
    18.
 3700.
165000
     8.
    64.
     3.
 17400.
     2.
 50300.
 21600.
     0.
    56.
 34100.
    10.
 70200.
    10.
     3.
    64.
                                          1000
                                          0000
                                          2000
                                          5000
                                          0000
                                          .000
                                          1000
                                          7000
                                          2000
                                          0000
                                          1000
                                          0000
                                          0000
                                          3600
                                          5000
                                          0000
                                          0000
                                          0000
                                          0000
                                          3000
                                          8000
 Highest
 Cone.
 Locat.

 B-5-2F_05/16/94
 B-6-lD_01/26/94
 B-6-lD_ll/2/93
 B-2-2D_ll/4/93
 B-5-2D_01/25/94
 B-6-lD_01/26/94
 B-l-2D_ll/l/93
 B-5-2D_01/25/94
 B-l-2D_4/26/92
 B-5-2D_4/27/93
B-2-2D_01/24/94
 B-12D_01/25/94
 B-14D_05/20/94
 B-12D_01/25/94
 B-14D_05/20/94
 B-5-2D_4/27/93
 B-5-lD_ll/2/93
 B-5-2D_4/27/93
 B-2-2D_ll/4/93
 B-7-lD_ll/4/93
 B-1-1D  01/24/94
Arithmetic
Mean
Cone.
94 2.332
94 12.703
i3 3.005
i3 5.091
94 716. 777
94 105965.909
i3 4.216
94 18.830
i2 1.785
i3 4286.251
34 1.048
i4 32930.227
i4 1277.598
i4 0.092
i4 10.322
i3 7518.977
i3 1.386
i3 24141.841
i3 2.545
i3 1.507
94 4.649
Lowest
Observed
Detect. Limit
0.500
7.000
2.000
1.000
.
73200.000
7.000
2.000
3.000
5.000
1.000
.
1.000
0.040
5.000
.
1.000
982.000
2.000
2.000
2.000
Highest
Observed
Detect. Limit
0.500
55.000
10.000
4.000
.
73200.000
10.000
17.500
11.150
135.000
3.000
.
5.000
0.200
14.700
.
5.000
982.000
15.000
4.000
21.700
-------
                       SUMMARY  STATISTICS  FOR THE BENNINGTON SITE
ALL RESULTS IN UG/L OR UG/KG, EXCEPT  INORGANIC SOIL RESULTS IN MG/KG AND AIR RESULTS IN UG/M3

± j. r £1 w
Num.
Times
Class NAME Detected
VOCs 1,1, 1-TRICHLOROETHANE
1, 1-DICHLOROETHANE
1, 1-DICHLOROETHENE
1, 2-DICHLOROETHANE
1,2-DICHLOROETHENE (TOTAL)
1, 2-DICHLOROPROPANE
2-BUTANONE
ACETONE
BENZENE
CHLOROBENZENE
CHLOROETHANE
ETHYLBENZENE
METHYLENE CHLORIDE
TETRACHLOROETHENE
TOLUENE
TRICHLOROETHENE
VINYL CHLORIDE
XYLENE (TOTAL)
BNAs 1,2, 4-TRIMETHYLBENZENE
1, 2-DICHLOROBENZENE
1,3, 5-TRIMETHYLBENZENE
1, 4-DICHLOROBENZENE
2-CHLOROTOLUENE
2-METHYLPHENOL
4 -CHLORO- 3 -METHYLPHENOL
4-1 SOPROP YLTOLUENE
4 -METHYLPHENOL
BIS (2-ETHYLHEXYL) PHTHALATE
DI-N-BUTYLPHTHALATE
DIETHYLPHTHALATE
ISOPROPYLBENZENE
N-PROPYLBENZENE
NAPHTHALENE
PHENOL
SEC-BUTYLBENZENE
5
19
3
1
8
1
2
8
14
10
21
5
10
5
6
4
7
2
2
2
2
8
1
2
1
2
3
5
2
1
2
2
1
1
2
v £jr\our\u£ji\i
Num.
Samples
Analyzed
27
28
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
20
17
27
17
27
17
22
22
17
22
22
22
22
17
17
27
22
17
rj_iuri£j ^vvcj-j.^ o ^
Lowest
Detected
Cone.
200,
0,
4,
0,
0,
1.
4,
3,
0,
1.
2,
0,
1.
0,
4,
7,
0,
1.
16,
0,
5,
0,
1,
46,
5,
1,
32,
1,
1,
7,
1,
1,
7,
10,
0,
.0000
.9000
.0000
.9000
.6000
.0000
.0000
.0000
.8000
.0000
.0000
.5500
.0000
.7000
.5000
.0000
.7000
.0000
.0000
.5000
.0000
.6000
.0000
.0000
.0000
.0000
.0000
.0000
.0000
.0000
.0000
.0000
.0000
.0000
.5000
1 , D -J f O V f J_>
Highest
Detected
Cone.
660.
1800.
30.
0.
4050.
1.
6.
180.
25.
7.
150.
200.
180.
70.
1650.
53.
95.
49.
20.
3.
12.
2.
1.
62.
5.
2.
115.
3.
1.
7.
2.
2.
7.
10.
0.
0000
0000
0000
9000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
5000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
9000
xi, cu ita o ± -j ;
Highest Arithmetic Lowest
Cone. Mean Observed
Locat. Cone. Detect. Limit
B-6-1 05/17/94
B-6-l_4/30/93
B-6-1 05/17/94
B-5-2_05/16/94
B-6-1 4/30/93
B-14 05/20/94
B-5-1 6/8/93
B-5-1 4/27/93
B-6-1 4/30/93
B-14 05/20/94
B-14 05/20/94
B-6-1DL 6/9/93
B-6-1 4/30/93
B-6-l_05/17/94
B-6-l_4/30/93
B-6-1 4/30/93
B-14_05/20/94
B-6-1 4/30/93
B-14_05/20/94
B-14 05/20/94
B-6-l_05/17/94
B-14 05/20/94
B-6-1 05/17/94
B-4-1 4/30/93
B-14 05/20/94
B-14 05/20/94
B-6-1 4/30/93
B-14 05/20/94
B-5-2 4/27/93
B-14 5/20/94
B-14_05/20/94
B-4-1 05/17/94
B-14_05/20/94
B-5-1 4/27/93
B-6-1 05/17/94
86.204
263.264
7.981
6.626
389.304
6.630
10.741
22.102
8.474
6.796
31.611
11.706
25.250
10.081
112.352
9.963
14.756
10.975
4.029
2.444
2.912
2.252
2.000
9.477
5.000
2.088
12.909
4.864
4.443
5.091
2.088
2.088
2.593
5.227
1.994
1
1
1
1
1
1
5
5
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
10
10
1
10
10
1
10
1
1
1
10
1
Highest
Observed
Detect. Limit
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.500
.000
.000
.000
.000
.000
.000
10.000
10.000
200.000
200.000
10.000
200.000
200.000
200.000
200.000
200.000
200.000
50.000
150.000
50.000
50.000
200.000
200.000
200.000
50.000
10.000
50.000
10.000
50.000
10.000
10.000
50.000
10.000
21.000
10.000
10.000
50.000
50.000
10.000
10.000
50.000
-------
Post/PCBs
Inor.
4,4'-DDT
  ALDRIN
 AROCLOR 1221
  DIELDRIN
ENDOSULFAN II
 ENDOSULFAN SULFATE
  ENDRIN
  ENDRIN ALDEHYDE
GAMMA-BHC  (LINDANE)
 HEPTACHLOR
ALUMINUM
  ARSENIC
BARIUM
  BERYLLIUM
  CALCIUM
  CHROMIUM
  COBALT
2
1
9
3
1
1
3
1
1
3
20
19
21
5
22
10
21
21
22
26
22
22
22
22
22
21
17
22
21
21
22
22
22
22
0
0
0
0
0
0
0
0
0
0
114
1
130
1
84200.
.0080
.0010
.5600
.0020
.0090
.0050
.0010
.0050
.0010
.0020
.0000
.6000
.0000
.3000
0000
11.3000
6
.8000
0.0190
0.0010
7.3000
0.0050
0.0090
0.0050
0.0040
0.0050
0.0010
0.0040
74000.0000
17.1000
4270.0000
4.6000
1210000.00
110.0000
290.0000
  B-5-2_ll/2/93
  B-6-l_ll/2/93
  B-5-20_05/14/94
  B-5-2_ll/2/93
B-15_05/18/94
  B-15_05/18/94
  B-6-l_ll/2/93
  B-14_05/20/94
  B-6-l_ll/2/93
  B-5-2_ll/2/93
  B-5-lT_01/25/94
  B-5-lT_6/8/93
  B-5-2T_01/25/94
  B-5-lT_01/25/94
  B-5-lT_01/25/94
  B-5-lT_01/25/94
  B-5-1T 01/25/94
0.031
0.024
1.577
0.041
0.046
0.046
0.041
0.047
0.024
0.020
9105.461
7.671
1506.333
0.959
213890.909
23.743
67.782
0.004
0.050
0.500
0.003
0.005
0.002
0.002
0.050
0.050
0.002
44.300
2.000

1.000
.
7.000
2.000
0.100
0.050
2.000
0.100
0.100
0.100
0.100
0.100
0.050
0.050
351.000
3.000

1.000
.
10.000
2.000
-------
                         SUMMARY STATISTICS FOR THE BENNINGTON SITE
ALL RESULTS IN UG/L OR UG/KG,  EXCEPT INORGANIC SOIL RESULTS IN MG/KG AND AIR RESULTS  IN  UG/M3

Class NAME
COPPER
CYANIDE
IRON
LEAD
MAGNESIUM
MANGANESE
MERCURY
NICKEL
POTASSIUM
SODIUM
VANADIUM
ZINC
± j. ±r£j wx
Num.
Times
Detected
17
8
22
15
22
21
9
18
22
22
13
15
' £jr\our\u£ji\
Num.
Samples
Analyzed
22
22
22
22
22
21
22
22
22
22
22
22
±rj_iuri£j ^vvcj-j.^ o
Lowest
Detected
Cone.
3.0000
2.0000
586.0000
1.0000
23500.0000
147.0000
0.0500
9.9000
2000.0000
3200.0000
2.7000
3.1000
sL f D -J f O V f J_>
Highest
Detected
Cone.
322.0000
5.0000
286000.000
120.0000
583000.000
23000.0000
0.5200
247.0000
37800.0000
7110.0000
138.0000
490.0000
± i f cu ita o ± -j ;
Highest Arithmetic
Cone. Mean
Lowest
Observed
Highest
Observed
Locat. Cone. Detect. Limit Detect. Limit
B-5-1T
B-14T_
B-5-1T
B-5-1T
B-5-1T
B-14T
B-6-1T
B-5-1T
B-5-1T
B-5-2T
B-5-1T
B-5-1T
01/25/94
05/20/94
01/25/94
_01/25/94
01/25/94
05/20/94
11/2/93
01/25/94
01/25/94
01/25/94
01/25/94
01/25/94
43
1
41741
20
82559
3658
0
49
13810
39050
17
64
.159
.982
.636
.905
.091
.500
.115
.332
.909
.227
.773
.369
3.000
2.000
2.000
•
0.040
5.000
•
3.000
2.000
3
4
3
•
0
9
•
3
140
.000
.700
.000

.200
.000

.000
.000
-------
             SUMMARY STATISTICS  FOR THE  BENNINGTON SITE - PHASE 1A AND IB RESULTS
ALL RESULTS IN UG/L OR UG/KG,  EXCEPT INORGANIC SOIL RESULTS IN MG/KG AND AIR RESULTS IN UG/M3

Class NAME
VOCs 1,1, 1-TRICHLOROETHANE
1, 1-DICHLOROETHANE
1,2-DICHLOROETHENE (TOTAL)
ACETONE
BENZENE
CHLOROETHANE
CHLOROFORM
D I CHLOROD I FLUOROMETHANE
METHYLENE CHLORIDE
TETRACHLOROETHENE
TOLUENE
TRI CHLOROETHENE
VINYL CHLORIDE
BNAs 1,4-DICHLOROBENZENE
BIS (2-ETHYLHEXYL) PHTHALATE
DI-N-OCTYLPHTHALATE
DIETHYLPHTHALATE
PHENOL
Past/PCBs DELTA-BHC
ENDOSULFAN I
ENDOSULFAN II
HEPTACHLOR EPOXIDE
Inor. ALUMINUM
ANTIMONY
BARIUM
BERYLLIUM
CALCIUM
CHROMIUM
COBALT
COPPER
CYANIDE
IRON
LEAD
MAGNESIUM
MANGANESE
MERCURY
NICKEL
POTASSIUM
SODIUM
THALLIUM
VANADIUM
ZINC
± j. r £1 ^
Num.
Times
Detected
4
4
5
1
5
3
6
4
3
5
1
6
1
1
3
2
3
2
1
1
1
2
8
1
12
1
12
7
2
4
2
10
3
12
12
5
8
12
11
3
3
5
' v £jr\our\u£ji\i
Num.
Samples
Analyzed
15
15
15
15
15
15
15
9
15
15
15
15
15
15
12
12
12
12
10
11
12
12
12
10
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
10
12
12
±rj_iuri£j ^vvcj-j.^ o
Lowest
Detected
Cone.
1
7
2
5
3
9
0
0
2
2
1
1.
1
1
1
16
3
14
0
0
0
0
81
2
30
1
42600.
10
3
4
4
48
1
19850.
15
0
6
731
1780
2
1
22
.0000
.0000
.0000
.0000
.0000
.0000
.8000
.9000
.0000
.0000
.0000
0000
.0000
.0000
.0000
.0000
.0000
.0000
.0030
.0040
.0020
.0010
.4000
.0000
.0000
.6000
0000
.3000
.6000
.0000
.2000
.9000
.0000
0000
.2000
.0500
.6000
.0000
.0000
.0000
.4000
.3000
sL f D -J f O V f J_> .
Highest
Detected
Cone.
2.0000
8.0000
3.0000
5.0000
5.0000
10.0000
2.0000
40.0000
3.0000
4.0000
1.0000
4.0000
1.0000
1.0000
28.0000
21.0000
4.0000
17.0000
0.0030
0.0040
0.0020
0.0020
3980.0000
2.0000
292.0000
1.6000
124500.0000
29.5000
7.3000
15.2000
11.0000
21300.0000
9.1000
59800.0000
1460.0000
0.2000
25.8000
1410.0000
13100.0000
4.0000
5.8000
93.4000
-L 1 f CL1 1U. J_> -L -J j
Highest
Cone.
Locat .
B-7-3 4/29/93
B-7-3_ll/3/93
B-7-3 6/10/93
B-7-3_05/19/94
B-7-3 11/3/93
B-7-3 11/3/93
B-2-3 4/30/93
B-7-3 11/3/93
B-2-3 6/9/93
B-7-3 6/10/93
B-2-3 4/30/93
B-2-3 4/30/93
B-7-3 01/29/94
B-7-3_01/29/94
B-7-3_4/29/93
B-2-3 4/30/93
B-7-3_6/10/93
B-7-3 4/29/93
B-6-3_4/28/93
B-7-3 4/29/93
B-7-3_6/10/93
B-7-3 4/29/93
B-6-3T 01/29/94
B-7-3T 01/29/94
B-6-3T 01/29/94
B-6-3T 01/29/94
B-7-3T 01/29/94
B-7-3T 4/29/93
B-6-3T 01/29/94
B-7-3T 4/29/93
B-7-3T_01/29/94
B-6-3T 01/29/94
B-6-3T_01/29/94
B-6-3T 01/29/94
B-6-3T_01/29/94
B-2-3T 01/4/93
B-6-3T_01/29/94
B-6-3T 01/29/94
B-6-3T 4/28/93
B-6-3T 01/29/94
B-6-37 6/10/93
B-6-3T 01/29/94
Arithmetic
Mean
Cone.
2.
3.
2.
3.
2.
4.
1.
6.
1.
2.
2.
1.
2.
2.
7.
7.
4.
6.
0.
0.
0.
0.
508.
3.
96.
0.
77270.
10.
2.
3.
2.
2144.
1.
33825.
219.
0.
9.
972.
4762.
2.
2.
20.

000
800
360
833
867
067
753
211
233
467
067
967
367
367
708
250
625
750
018
023
046
021
467
250
446
592
833
825
063
917
979
944
917
000
233
118
208
042
917
430
075
946
Lowest
Observed
Detect.
1
1
1
5
1
1
1
1
1
1
1
1
1
1
7
10
10
10
0
0
0
0
12
2
.
1
.
7
2
3
2
25
1
.
.
0
5.
.
4120
2
2
3
Limit
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.000
.001
.050
.100
.050
.000
.000

.000

.000
.000
.000
.000
.450
.000


.040
000

.000
.000
.000
.600
Highest
Observed
Detect. Limit
10.000
10.000
10.000
10.000
10.000
10.000
10.000
1.000
4.000
10.000
10.000
10.000
10.000
10.000
10.000
10.000
10.000
10.000
0.050
0.050
0.100
0.050
55.000
9.000
.
1.000
.
10.000
4.000
3.000
8.000
33.400
3.000
.
.
0.300
9.000
.
4120.000
6.000
3.000
39.600
-------
             SUMMARY STATISTICS  FOR THE  BENNINGTON SITE - PHASE 1A AND IB RESULTS
ALL RESULTS IN UG/L OR UG/KG,  EXCEPT INORGANIC SOIL RESULTS IN MG/KG AND AIR RESULTS IN UG/M3


Class NAME
Inor. ALUMINUM
ANTIMONY
ARSENIC
BARIUM
CALCIUM
CHROMIUM
COPPER
IRON
LEAD
MAGNESIUM
MANGANESE
MERCURY
NICKEL
POTASSIUM
SODIUM
THALLIUM
VANADIUM
ZINC
Num.
Times
Detected
4
4
2
10
12
1
1
7
3
12
11
3
4
12
12
1
3
5
j. j. r £1
Num.
Samples
Analyzed
12
12
12
12
12
12
12
12
12
12
12
12
12
22
12
12
12
12
i^rr\wui\iu vvj-ix £jr\/ oj
Lowest
Detected
Cone.
92.1000
3.0000
3.0000
19.2000
40600.0000
11.9000
4.1000
40.1000
1.0000
18450.0000
2.3000
0.2000
5.9000
796.0000
1710.0000
2.0000
3.4000
9.3000
ij.u.r\w— 1\ £ x±j±Hji\j
Highest
Detected
Cone.
299.0000
13.7000
3.0000
124.0000
118000.000
11.9000
4.1000
1460.0000
1.0000
280000.000
152.0000
0.2000
12.7000
1210.0000
13600.0000
2.0000
5.0000
29.1000
lj.U
Highest
Cone.
Locat .
B-6-3D_6/10/93
B-6-3D 4/28/93
B-6-3D_ll/3/93
B-6-3D 6/10/93
B-7-3D 01/29/94
B-6-3D 6/10/93
B-7-3D 4/29/93
B-6-3D 6/10/93
B-2-3D 11/4/93
B-6-3D 6/10/93
B-6-3D 6/10/93
B-2-3D 11/4/93
B-6-3D 6/10/93
B-6-3D_4/28/93
B-4-3D_4/28/93
B-2-3D 11/4/93
B-6-3D_01/29/94
B-2-3D 6/9/93
Arithmetic
Mean
Cone.
56.883
4.508
1.583
64.710
71383.333
4.575
1.717
204.473
1.125
50954.167
54.521
0.105
5.300
948.250
4897.083
2.208
2.008
12.446
Lowest
Observed
Detect. Limit
7.000
2.000
1.000
32.050
.
7.000
3.000
7.650
2.000
.
2.000
0.040
5.000
.
.
2.000
2.000
6.100
Highest
Observed
Detect. Limit
55.000
9.000
4.000
68.600
.
10.000
3.000
122.000
3.000
.
2.000
0.200
9.000
.
.
6.000
3.000
53.300
-------
                                                          SUMMARY  STATISTICS  FOR THE  BENNINGTON SITE
                                 ALL RESULTS IN UG/L OR UG/KG,  EXCEPT  INORGANIC SOIL RESULTS  IN MG/KG AND AIR RESULTS IN UG/M3
                                	 TYPE-SURFACE SOIL/EXPOSED  SEDIMENTS  (0-21)* 	
Class

VOCs



BNAs
Past/PCBs
 NAME

 ACETONE
 METHYLENE CHLORIDE
 TOLUENE
 XYLENE  (TOTAL)
 2,4-DIMETHYLPHENOL
 4-METHYLPHENOL
 BENZO(A)ANTERACENE
 BENZO(G,H,I)PERYLENE
 BIS (2-ETHYLHEXYL)PHTHALATE
 BUTYLBENZYLPHTHALATE
 DI-N-BUTYLPHTHALATE
 DIETHYLPHTHALATE
 FLUORANTHENE
 NAPHTHALENE
 PHENANTHRENE
 PYRENE
4,4'-ODD
 4,4,-DDE
 4,4'-DDT
 ALDRIN
 ALPHA-CHLORDANE
 AROCLOR 1016
 AROCLOR 1248
 DELTA-BHC
 DIELDRIN
 ENDOSULFAN I
 ENDOSULFAN II
 ENDOSULFAN SULFATE
 ENDRIN
 ENDRIN ALDEHYDE
 ENDRIN KETONE
 GAMMA-CHLORDANE
 HEPTACHLOR
 HEPTACHLOR EPOXIDE
 METHOXYCHLOR
    Num.
   Times
Detected

    1
    2
    3
     1
     1
    1
     1
     1
    11
    2
     1
    1
     1
    1
    2
     3
     4
    11
     3
     6
     2
     2
     7
     2
     4
     3
     9
     1
     4
     3
     3
     7
     1
      1
      2
  Num.
Samples
Analyzed

   15
   15
   15
   15
   15
   15
   15
   15
   15
   15
   15
   15
   15
   15
   15
   15
   15
   15
   15
   13
   13
   20
   20
   14
   14
   15
   15
   15
   15
   15
   15
   13
   13
   13
   15
 Lowest
 Detected
  Cone.

  27.0000
   3.0000
   5.0000
  14.0000
 420.0000
 420.0000
  44.0000
  66.0000
  40.0000
 55.0000
  49.0000
 420.0000
 120.0000
  96.0000
  73.0000
  70.0000
   0.1390
   0.0770
   0.3050
   0.0670
  0.1800
4000.0000
  42.0000
   0.1600
   0.0640
   0.0740
   0.1300
   0.2400
   0.0440
   0.2600
   4.2000
   0.0290
   0.0170
   2.4000
   2.9000
   Highest
Detected
     Cone.

   27.0000
    4.0000
    9.0000
   14.0000
  420.0000
  420.0000
   44.0000
   66.0000
 1100.0000
  540.0000
   49.0000
  420.0000
  120.0000
   96.0000
   75.0000
  500.0000
   0.2600
    3.9000
    6.8000
    1.9000
    0.4400
 6400.0000
11000.0000
    0.2700
    2.7000
    8.9000
    3.9000
    0.2400
    0.5400
    0.6200
    9.5000
    2.4000
    0.0170
    2.4000
   14.0000
    Highest
     Cone.
     Locat.

 LEACH(SS-03(O-l1)_10/2/92
 SED-15(0-6'')_4/29/93
 SS-02(0-l')_10/5/92
SS-01(0-l')_9/30/92
 SED-16(0-6'')_4/29/93
 SED-16(0-6''_4/29/93
 LEACH(SS)-04(0-1')_10/2/92
 SS-05(O-l1)_10/6/92
 SS-01DL(0-1')_9/30/92
SS-01DL(0-1')_9/30/92
LEACH(SS)-04(0-1')_10/2/92
 SED-16(0-6'')_4/29/93
 LEACH(SS)-04(0-1')_10/2/92
 SS-05(O-l1)_10/6/92
 SS-05(O-l1)_10/6/92
SS-01DL(0-l')_9/30/92
 SED-ll(0-6'')_10/6/92
 SS-01(0-l')_9/30/92
 SS-01(0-l')_9/30/92
 SS-01(0-l')_9/30/92
 SS-03(0-l')_10/7/92
 SS-75NNW35W(0-l')_4/28/93
 SS-75NNW(0-1')_4/25/93
 SS-02 (O-l1)_10/5/92
 SS-01(O-l1)_9/30/92
 SS-01(O-l1)_9/30/92
 SS-01 (O-l1)_9/30/92
 SS-02(O-l1)_10/5/92
 SS-03 (O-l1)_10/7/92
 SED-11(0-61')_10/6/92
SS-01 (O-l1)_9/30/92
 SS-01(O-l1)_9/30/92
 SED-05(0-6'')_9/30/92
 SS-01(0-l')-)_9/30/92
 SS-01 (O-l1)  9/30/92
                                                                                                                              Arithmetic
                                                                                                                                  Mean
                                                                                                                                 Cone.
                                                                                                                                    Lowest
                                                                                                                                   Observed
                                                                                                                                 Detect.  Limit
7.883
5.617
6.450
7.050
283.040
283.060
257.933
252.733
228.533
228.000
258.267
283.000
263.000
254.733
244.200
210.667
1.469
1.234
1.030
0.901
0.955
550.700
707.125
0.916
1.574
1.373
1.362
1.710
1.338
1.737
2.933
0.728
0.990
1.177
8.319
11.500
4.000
11.500
11.500
380.000
380.000
380.000
380.000
380.000
380.000
380.000
380.000
380.000
380.000
380.000
380.000
0.350
3.600
0.140
0.330
1.800
36.000
36.000
1.800
0.310
0.140
3.800
0.057
0.160
3.600
3.600
0.290
1.800
1.800
0.620
 Highest
Observed
Detect. Limit

       19.000
       19.000
       19.000
       19.000
     2000.000
     2000.000
     2000.000
     2000.000
      420.000
      620.000
     2000.000
     2000.000
     2000.000
      2000.000
     2000.000
      500.000
        6.200
         .100
         .700
         .500
                                                                                                                                                                            100
                                                                                                                                                                        370.000
                                                                                                                                                                        430.000
                                                                                                                                                                          3.100
                                                                                                                                                                          6.200
                                                                                                                                                                          3.100
                                                                                                                                                                          6.200
                                                                                                                                                                          6.200
                                                                                                                                                                          6.200
                                                                                                                                                                          6.200
                                                                                                                                                                         19.000
                                                                                                                                                                          2.000
                                                                                                                                                                          3.100
                                                                                                                                                                          3.100
                                                                                                                                                                         31.000
-------
Inor.          ALUMINUM
              ARSENIC
              BARIUM
              BERYLLIUM
              CADMIUM
              CALCIUM
              CHROMIUM
              COBALT
              COPPER
              CYANIDE
              IRON
              LEAD
              MAGNESIUM
•       All samples collected from 0-2'  interval except one sample from 2-3'  interval.
15
13
15
1
1
15
15
15
15
7
15
14
15
15
15
15
9
9
15
15
15
15
15
15
14
15
1170
1.
10
0
1
4560
2
4
6
0
5250
4
1760
.0000
6000
.9000
.7400
.4000
.0000
.3000
.3000
.5000
.1100
.0000
.5000
.0000
8080
4
188
0
1
119000.
9
62
53
0
39600
52
44300
.0000
.5000
.0000
.7400
.4000
000
.7000
.8000
.4000
.6200
.0000
.1000
.0000
LEACH (SS)
SS-01 (0-1
SS-05 (O-l1
LEACH (SS)
SED-10 (0-
LEACH(SS)
LEACH (SS)
SED-10 (0-
SED-10 tO-
SS-OS (0-1
LEACH (SS)
SS-01 (0-1
LEACH (SS)
-03(O-l1)_10/2/92
1)_9/30/92
)_10/6/92
-03(O-l1)_10/2/92
6'')_10/2/92
-04(O-l1)_10/2/92
-03(0-l')_10/2/92
6')_10/2/92
6'')_10/2/92
 )_10/6/92
-03(0-l')_10/2/92
 )_9/30/92
-04(0-l')_10/2/92
  3795.667
     2.657
    51.410
    0.215
     0.671
50069.000
    5.277
   11.367
   17.973
    0.148
15256.667
   18.839
17911.333
 1.000

 0.230
0.980
 0.060
1.000

0.450
1.300
                   0.220
-------
                                                  SUMMARY STATISTICS FOR THE BENNINGTON SITE
                         ALL RESULTS  IN  UG/L OR UG/KG,  EXCEPT INORGANIC SOIL RESULTS IN MG/KG AND AIR RESULTS IN UG/M3



Class NAME
MANGANESE
MERCURY
NICKEL
POTASSIUM
SELENIUM
SILVER
SODIUM
THALLIUM
VANADIUM
ZINC

Num.
Times
Detected
15
7
13
15
2
3
2
1
15
15
±j.±r£j tD
-------
                                                 SUMMARY STATISTICS FOR THE BENNINGTON SITE - PHASE  IB RESULTS
                                 ALL RESULTS IN UG/L OR UG/KG, EXCEPT INORGANIC SOIL RESULTS IN MG/KG AND AIR RESULTS  IN  UG/M3

                                	 TYPE-SURFACE SOIL/SEDIMENTS - DRAINAGE POND  	
                                                Num.       Num.        Lowest          Highest     Highest                     Arithmetic      Lowest              Highest
                                               Times     Samples       Detected     Detected       Cone.                          Mean        Observed            Observed
Class         NAME                          Detected    Analyzed       Cone.            Cone.      Locat.                        Cone.      Detect.  Limit       Detect. Limit

Past/PCBs      AROCLOR 1248                        3        3          35.0000     19008.0000     SS11-6 04/18/94                9078.333
-------
                SUMMARY STATISTICS  FOR  THE  BENNINGTON SITE - PHASE IB RESULTS
ALL RESULTS IN UG/L OR UG/KG, EXCEPT  INORGANIC  SOIL RESULTS IN MG/KG AND AIR RESULTS IN UG/M3


Class NAME
Num.
Times
Detected
± j. ±r£j >D>
Num.
Samples
Analyzed
jr\r^-i^iL OW-L.L
Lowest
Detected
Cone.
i owuj.n wr j_i^-ii\iu
Highest
Detected
Cone.
r ± j_i.i_i
Highest
Cone.
Locat .
Arithmetic
Mean
Cone.
Lowest
Observed
Detect. Limit
Highest
Observed
Detect. Limit
                                      60.0000
                                                    310.0000
SS9-12 04/18/94
                                                                                               52.625
                                                                                                              17.000
                                                                                                                                 17.000
-------
                SUMMARY STATISTICS  FOR  THE  BENNINGTON SITE - PHASE IB RESULTS
ALL RESULTS IN UG/L OR UG/KG, EXCEPT  INORGANIC  SOIL RESULTS IN MG/KG AND AIR RESULTS IN UG/M3


Class NAME
Past/PCBs AROCLOR 1248
Num.
Times
Detected
6
± j. ±r£j >D>
Num.
Samples
Analyzed
8
jr\r^-i^iL OW-L.L
Lowest
Detected
Cone.
25.0000
i -U.TXrt.-L lN.rt.0-.Cj JT WIN U
Highest
Detected
Cone.
940.0000
Highest
Cone.
Locat .
SUB11-3 04/19/94
Arithmetic
Mean
Cone.
218.750
Lowest
Observed
Detect. Limit
17.000
                                                                                                                               Highest
                                                                                                                               Observed
                                                                                                                               Detect. Limit

                                                                                                                              17.000
-------
                            SUMMARY STATISTICS FOR THE BENNINGTON SITE
ALL RESULTS IN UG/L OR UG/KG,  EXCEPT  INORGANIC SOIL RESULTS IN MG/KG AND AIR RESULTS IN UG/M3
Class NAME
VOCS ACETONE
TOLUENE
BNAs 1 , 4 - D I CHLOROBENZ ENE
2 -METHYLNAPHTHALENE
BENZO (A) ANTHRACENE
BENZO (A) PYRENE
BENZO (B) FLUORANTHENE
CHRYSENE
DI-N-BUTYLPHTHALATE
FLUORANTHENE
N-NITROSO-DI-N-PROPYLAMINE
NAPHTHALENE
PYRENE
Pest/PCBs 4, 4 '-DDE
AROCLOR 1242
Inor. ALUMINUM
ARSENIC
BARIUM
BERYLLIUM
CALCIUM
CHROMIUM
COBALT
COPPER
CYANIDE
IRON
LEAD
MAGNESIUM
MANGANESE
MERCURY
NICKEL
POTASSIUM
SODIUM
VANADIUM
ZINC
Num.
Times
Detected
2
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
1
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
±
Num.
Samples
Analyzed
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
. -L±r£j — UrV-l-Ll\I.M<^r£j ±TW1\1
Lowest
Detected
Cone.
115.0000
6.0000
110.0000
91.0000
120.0000
100.0000
230.0000
140.0000
78.0000
260.0000
310.0000
140.0000
260.0000
78.0000
72500.0000
5680.0000
12.9000
508.0000
0.3950
37400.0000
12.7000
7.0000
32.2000
0.2000
26400.0000
118.5000
10700.0000
338.0000
0.2300
12.3000
1930.0000
632.5000
13.7000
212.5000
u o£jU-i_rmi\i j. o
Highest Highest
Detected Cone.
Cone. Locat.
1100.0000
6.0000
110.0000
91.0000
120.0000
100.0000
230.0000
140.0000
78.0000
260.0000
310.0000
140.0000
260.0000
93.0000
100000.000
9610.0000
27.5000
508.0000
0.3950
70300.0000
16.5000
12.1500
32.7000
0.4100
47500.0000
169.0000
17500.0000
806.5000
0.2400
16.9000
2000.0000
1110.0000
15.3000
221.0000
SED-24
SED-21
SED-24
SED-24
SED-24
SED-24
SED-24
SED-24
SED-21
SED-24
SED-24
SED-24
SED-24
SED-24
SED-24
SED-21
SED-24
SED-21
SED-21
SED-21
SED-21
SED-21
SED-24
SED.24
SED-21
SED-24
SED-21
SED-21
SED-21
SED-21
SED-21
SED-24
SED-21
SED-24
Arithmetic
Mean
Cone.
607.500
33.000
203.750
194.250
208.750
198.750
263.750
218.750
236.500
278.750
303.750
218.750
278.750
85.500
86250.000
7645.000
20.200
508.000
0.318
535850.000
14.600
9.575
32.450
0.305
36950.000
143.750
14100.000
572.250
0.235
14.600
1965.000
871.250
14.500
216.750
Lowest Highest
Observed Observed
Detect. Limit Detect. Limit
120.000 120.000
595.000 595.000
595.000 595.000
595.000 595.000
595.000 595.000
595.000 595.000
595.000 515. Oho
790.000 790.000
595.000 595.000
595.000 595.000
595.000 595.000
595.000 595.000










-------
                            SUMMARY STATISTICS FOR THE BENNINGTON SITE
ALL RESULTS IN UG/L OR UG/KG,  EXCEPT  INORGANIC SOIL RESULTS IN MG/KG AND AIR RESULTS IN UG/M3


Class
VOCS

BNAs
Pest/PCBs









Pest/PCBs
Inor .




















NAME
2-BUTANONE
ACETONE
BIS (2-ETHYLEEXYL) PETHALATE
4,4' -ODD
4,4' -DDE
4,4' -DDT
ALDRIN
ALPHA-CHLORDANE
BETA-BHC
DIELDRIN
ENDOSULFAN I
ENDOSULFAN II
HEPTACHLOR
HEPTACHLOR EPOXIDE
ALUMINUM
ANTIMONY
ARSENIC
BARIUM
CALCIUM
CHROMIUM
COBALT
COPPER
CYANIDE
IRON
LEAD
MAGNESIUM
MANGANESE
NICKEL
POTASSIUM
SELENIUM
SILVER
VANADIUM
ZINC
Num.
Times
Detected
3
3
6
1
2
2
1
1
2
2
1
1
1
2
8
1
8
8
8
8
8
8
3
8
8
8
8
7
8
2
1
8
7
± j.
Num.
Samples
Analyzed
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
r £1 — ±rwi\iu/ or\wwi\ 01
Lowest
Detected
Cone.
160.000
480.000
36.0000
0.2600
0.2000
0.3500
0.0630
11.0000
0.4700
0.0840
0.0430
0.7300
0.7400
0.0400
1440.0000
9.4000
1.6000
27.8000
11200.0000
2.9000
8.7000
5.4000
0.2700
8400.0000
2.7000
3720.0000
426.0000
6.3000
94.9000
1.3000
1.6000
3.7000
14.2000
jormr\<^r£ju OILU.L
Highest
Detected
Cone.
530.0000
2000.0000
260.0000
0.2600
3.2000
0.3800
0.0630
11.0000
0.5500
0.6700
0.0430
0.7300
0.0740
0.8100
4490.0000
9.4000
64.2000
4170.0000
123000.000
17.2000
121.0000
26.1000
1.0000
182000.000
55.3000
53900.0000
13300.0000
21.9000
519.0000
4.8000
1.6000
15.1000
87.4000
.ri£ji\i j. o
Highest
Cone.
Locat .
SED-06(0-6'
SED-06(0-6'
SED-06(0-6'
SED-01 (0-61
SED-06(0-6'
SED-09 (0-61
SED-02 (0-61
SED-06 (0-61
SED-07 (0-61
SED-06 (0-61
SED-04 (0-61
SED-06 (0-61
SED-02 (0-61
SED-06(0-6'
SED-07 (0-61
SED-07 (0-61
SED-08 (0-61
SED-06(0-6'
SED-03 (0-61
SED-06(0-6'
SED-08 (0-61
SED-02 (0-61
SED-08 (0-61
SED-04 (0-61
SED-06 (0-61
SED-03 (0-61
SED-08 (0-61
SED-07 (0-61
SED-06 (0-61
SED-06 (0-61
SED-08 (0-61
SED-06(0-6'
SED-06(0-6' '



')_10/l/92
1 )_10/l/92
') 10/1/92
')_9/30/92
') 10/1/92
') 10/1/92
') 9/30/92
') 10/1/92
') 10/1/92
') 10/1/92
') 10/1/92
') 10/1/92
') 9/30/92
1 ) 1 0 / 1 / 92
1 ) 1 0 / 1 / 92
')_10/l/92
1 )_10/l/92
')_10/l/92
1 )_10/l/92
')_10/l/92
1 )_10/l/92
') 9/30/92
') 10/1/92
') 10/1/92
') 10/1/92
') 10/1/92
') 10/1/92
') 10/1/92
') 10/1/92
') 10/1/92
1 ) 1 0 / 1 / 92
1 ) 1 0 / 1 / 92
) 10/1/92
Arithmetic
Mean
Cone.
129.125
387.875
133.625
2.249
2.756
1.501
1.920
2.719
1.690
2.426
1.912
2.773
1.922
1.325
2430.000
3.406
20.462
984.550
59550.000
7.475
36.400
13.500
0.275
43562.500
13.750
21490.000
3356.750
10.675
252.612
1.315
0.609
7.025
31.350
Lowest
Observed
Detect. Limit
11.000
11.000
410.000
0.460
3.800
0.160
2.000
1.900
1.900
3.800
1.900
3.800
2.000
1.900

2.500






0.060




14.400

0.460
0.460
.
26.400
Highest
Observed
Detect. Limit
17.000
17.000
420.000
11.000
11.000
11.000
11.000
5.400
11.000
11.000
11.000
11.000
11.000
5.400

14.400






0.440




14.400

6.200
2.600
.
26.400
-------
                  SUMMARY  STATISTICS FOR THE BENNINGTON SITE
ALL RESULTS IN UG/L OR UG/KG,  EXCEPT INORGANIC SOIL RESULTS IN MG/KG AND AIR RESULTS  IN  UG/M3

Class NAME
Inor. ALUMINUM
ARSENIC
BARIUM
CALCIUM
CHROMIUM
COBALT
COPPER
IRON
LEAD
MAGNESIUM
MANGANESE
NICKEL
POTASSIUM
VANADIUM
ZINC
Num.
Times
Detected
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
i
Num.
Samples
Analyzed
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
. -L±r£j — ±rjTU-lO£j -LO OUC
Lowest
Detected
Cone.
2080.0000
5.2500
84.4500
37550.0000
4.6000
10.8000
7.6500
12100.0000
6.3000
17950.0000
1235.0000
8.6500
246.5000
3.9000
21.7500
irmr\i^r£ju o£jU-i_rmi\i± o
Highest Highest
Detected Cone.
Cone.
2080.0000
5.2500
84.4500
37550.0000
4.6000
10.8000
7.6500
12100.000
6.3000
17950.0000
1235.0000
8.6500
246.5000
3.9000
21.7500
Locat .
SED-PC_05/04/94
SED-PC_05/04/94
SED-PC_05/04/94
SED-PC_05/04/94
SED-PC_05/04/94
SED-PC 05/04/94
SED-PC 05/04/94
SED-PC 05/04/94
SED-PC 05/04/94
SED-PC 05/04/94
SED-PC 05/04/94
SED-PC 05/04/94
SED-PC 05/04/94
SED-PC_05/04/94
SED-PC 05/04/94
Arithmetic Lowest
Mean Observed
Highest
Observed
Cone. Detect. Limit Detect. Limit
2080.000
5.250
84.400
37550.000
4.600
10.800
7.650
12100.000
6.300
17950.000
1235.000
8.650
246.500
3.900
21.750

.
.
.
.
.
.
.
.
.
.
.
.
.

-------
                           SUMMARY STATISTICS FOR THE BENNINGTON SITE
ALL RESULTS IN UG/L OR UG/KG,  EXCEPT INORGANIC SOIL RESULTS IN MG/KG AND AIR RESULTS  IN  UG/M3


Class
VOCs

BNAs
Pest/PCBs


Inor .


















NAME
ACETONE
BENZENE
DI-N-BUTYLPETEALATE
ALDRIN
AROCLOR 1242
DIELDRIN
ALUMINUM
ARSENIC
BARIUM
CALCIUM
CHROMIUM
COBALT
COPPER
CYANIDE
IRON
LEAD
MAGNESIUM
MANGANESE
NICKEL
POTASSIUM
SODIUM
VANADIUM
ZINC
Num.
Times
Detected
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Num.
Samples
Analyzed
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
-L J. ±T£j — O£jl.
Lowest
Detected
Cone.
11000.0000
80.0000
17000.0000
81000.0000
14000000.0
47000.0000
1680.0000
37.4000
561.0000
14300.0000
8.9000
5.4000
15.7000
0.6600
13600.0000
22.2000
4720.0000
79.6000
9.5000
1890.0000
2360.0000
33.4000
402.0000
'.LrmiN J. o ui\iu£jr\ur
-------


Class
VOCs






BNAs










Pest/PCBs




Inor .

















NAME
ACETONE
BENZENE
CHLOROBENZENE
CHLOROETEANE
ETEYLBENZENE
TOLUENE
XYLENE (TOTAL)
1,2, 4-TRICHLOROBEZENE
1, 4-DICHLOROBENZENE
2 -METHYLNAPHTHALENE
BENZO ( A) ANTERACENE
BENZO (B) FLUORANTHENE
BENZO (K) FLUORANTHENE
BIS (2-ETEYYLEEXYL) PETEALATE
BUTYLBENZYLPHTHALATE
CHRYSENE
DI-N-BUTYLPHTHALATE
NAPHTHALENE
4, 4 '-DDE
ALDRIN
AROCLOR 1248
ENDOSULFAN II
GAMMA- CHLORDANE
ALUMINUM
ARSENIC
BARIUM
CALCIUM
CHROMIUM
COBALT
COPPER
IRON
LEAD
MAGNESIUM
MANGANESE
NICKEL
POTASSIUM
SODIUM
VANADIUM
ZINC
Num.
Times
Detected
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Num.
Samples
Analyzed
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
                          SUMMARY  STATISTICS  FOR  THE  BENNINGTON SITE
ALL RESULTS IN UG/L OR UG/KG, EXCEPT  INORGANIC  SOIL RESULTS  IN MG/KG AND AIR RESULTS IN UG/M3

                       TYPE=LEACHATE/LANDFILL UNDERDRAIN (AQUEOUS)  	
                                 Lowest
                               Detected
                                  Cone.
 Highest
Detected
Cone.
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
26.0000 26.0000
9.5000 9.5000
7.5000 7.5000
8.0000 8.0000
16.0000 16.0000
18.5000 18.5000
68.0000 68.0000
4.5000 4.5000
8.5000 8.5000
35.5000 35.5000
2.0000 2.0000
1.0000 1.0000
1.0000 1.0000
44.0000 44.0000
6.0000 6.0000
2.5000 2.5000
9.0000 9.0000
28.5000 28.5000
275.0000 275.0000
265.0000 265.0000
57500.0000 57500.0000
58.5000 58.5000
42.000 42.000
737.0000 737.0000
158.0000 158.0000
2055.0000 2055.0000
80800.0000 80800.0000
11.8000 11.8000
12.8500 12.8500
17.7000 17.7000
17500.0000 17500.0000
11.8500 11.8500
106000.000 106000.000
207.0000 207.0000
117.0000 117.0000
320500.000 320500.000
560500.000 560500.000
19.6500 19.6500
1101.5000 1101.5000
  Highest
     Cone.
    Locat.

 LEACH(UD)-01_10/2/92
  LEACH(UD)-01_10/2/92
 LEACH(UD)-01_10/2/92
 LEACH(UD)-01_10/2/92
 LEACH(UD)-01_10/2/92
 LEACH(UD)-01_10/2/92
 LEACH(UD)-01_10/2/92
LEACH(UD)-01_10/2/92
 LEACH(UD)-01_10/2/92
 LEACH(UD)-01_10/2/92
 LEACH(UD)-01_10/2/92
 LEACH(UD)-01_10/2/92
 LEACH(UD)-01_10/2/92
 LEACH(UD)-01_10/2/92
 LEACH(UD)-01_10/2/92
 LEACH(UD)-01_10/2/92
 LEACH(UD)-01_10/2/92
 LEACH(UD)-01_10/2/92
 LEACH(UD)-01_10/2/92
 LEACH(UD)-01_10/2/92
 LEACH(UD)-01_10/2/92
 LEACH(UD)-01_10/2/92
 LEACH(UD)-01_10/2/92
 LEACH(UD)-01_10/2/92
 LEACH(UD)-01_10/2/92
 LEACH(UD)-01_10/2/92
 LEACH(UD)-01_10/2/92
 LEACH(UD)-01_10/2/92
 LEACH(UD)-01_10/2/92
 LEACH(UD)-01_10/2/92
 LEACH(UD)-01_10/2/92
 LEACH(UD)-01_10/2/92
 LEACH(UD)-01_10/2/92
 LEACH(UD)-01_10/2/92
 LEACH(UD)-01_10/2/92
 LEACH(UD)-01_10/2/92
 LEACH(UD)-01_10/2/92
 LEACH(UD)-01_10/2/92
 LEACH(UD)-01  10/2/92
Arithmetic    Lowest
  Mean       Observed
 Cone.     Detect.  Limit

      26.000
       9.500
       7.500
       8.000
      16.000
      18.500
      68.000
       4.500
      8.500
    35.500
      2.000
      1.000
      1.000
    44.000
      6.000
      2.500
      9.000
    28.500
   275.000
   265.000
 57500.000
    58.500
    42.000
   737.000
   158.000
    2055.000
   80800.000
      11.800
      12.850
      17.700
 17500.000
    11.850
106000.000
   207.000
   117.000
320500.000
560500.000
    19.650
  1101.500
     Highest
    Observed
Detect. Limit
-------
                           SUMMARY STATISTICS FOR THE BENNINGTON SITE
ALL RESULTS IN UG/L OR UG/KG,  EXCEPT INORGANIC SOIL RESULTS IN MG/KG AND AIR RESULTS  IN  UG/M3

Class NAME
VOCs ACETONE
CARBON BISULFIDE
Pest/PCBs 4,4'-DDD
DIELDRIN
GAMMA- CHLORDANE
METHOXYCHLOR
Inor. ALUMINUM
ARSENIC
BARIUM
CALCIUM
CHROMIUM
COBALT
COPPER
CYANIDE
IRON
LEAD
MAGNESIUM
MANGANESE
NICKEL
ORGANIC CARBON, TOTAL
POTASSIUM
SILVER
SODIUM
TOTAL HARDNESS AS CACO 3
VANADIUM
ZINC
Num.
Times
Detected
1
1
3
2
2
1
3
3
6
6
1
3
2
1
6
2
6
6
2
4
6
2
6
4
2
2
±j.±r£j — our\rj-i^iL vvj-i±iLr\
Num. Lowest Highest Highest
Samples Detected Detected Cone.
Analyzed Cone.
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
4
6
6
6
4
6
6
10.0000
13.0000
0.0020
0.0010
0.0010
0.0090
39.2000
25.3000
227.0000
78400.0000
10.3000
5.8500
13.7000
2.7000
158.0000
16.0000
21700.0000
32.7000
14.0000
2.9000
4040.0000
2.0000
7500.0000
271.0000
11.6000
43.6000
Cone.
10.0000
13.0000
0.0065
0.0010
0.0020
0.0090
4490.0000
116.4000
9170.0000
178000.000
10.3000
154.0000
17.5000
2.7000
388500.000
39.5000
34300.0000
28200.0000
30.3000
10.2000
35100.0000
3.4000
53500.0000
370.0000
12.5000
81.9000
Locat .
SWAT-07_
SWAT-07_
SWAT-06_
SWAT-01_
SWAT-01_
SWAT- 06
SWAT- 07
SWAT- 06
SWAT- 06
SWAT- 06
SWAT- 07
Arithmetic
Mean
Cone.
10/1/92
10/1/92
10/1/92
9/30/92
9/30/92
10/1/92
10/1/92
10/1/92
10/1/92
10/1/92
10/1/92
SWAT-07 10/1/92
SWAT- 07
SWAT-06_
SWAT-06_
SWAT-06_
SWAT-06_
SWAT-07_
SWAT-07_
SWAT-06_
SWAT-02_
SWAT-07_
SWAT- 02
SWAT- 06
SWAT- 06
SWAT- 06
10/1/92
10/1/92
10/1/92
10/1/92
10/1/92
10/1/92
10/1/92
10/1/92
9/30/92
10/1/92
9/30/92
10/1/92
10/1/92
10/1/92
5.
5.
0.
0.
0.
0.
853.
30.
2262.
108500.
5.
833
750
013
035
018
182
867
617
500
000
467
40.825
6.
0.
79348.
10.
29883.
5929.
11.
5.
15230.
6.
27633.
329.
5.
23.
200
975
000
583
333
617
050
925
000
567
333
250
350
583
Lowest
Observed
Detect.
10.
3.
0.
0.
0.
0.
37.
4.
.
.
9.
Limit
000
000
004
100
050
050
000
000


000
4.000
3.
1.
.
2.
.
.
11.

.
2.
.
.
.
.
000
000

000


000


000




Highest
Observed
Detect. Limit
10.000
10.000
0.120
0.120
0.062
0.620
37.000
4.000
.
.
9.000
4.000
3.000
2.300
.
10.000
.
.
11.000

.
62.000
.
.
.
.
-------
                      SUMMARY  STATISTICS  FOR THE BENNINGTON SITE
ALL RESULTS IN UG/L OR UG/KG,  EXCEPT  INORGANIC SOIL RESULTS IN MG/KG AND AIR RESULTS  IN UG/M3


Class NAME
Inor. ALUMINUM
BARIUM
CALCIUM
CYANIDE
IRON
MAGNESIUM
MANGANESE
POTASSIUM
SODIUM
Num.
Times
Detected
1
2
2
1
2
2
2
2
2
Num.
Samples
Analyzed
2
2
2
2
2
2
2
2
2
±j.±r£j — ±rjnrt.o£j -Lo our\rj-i^iL vvj-i±iLr\
Lowest Highest Highest
Detected Detected Cone.
Cone. Cone. Locat.
108.0000 108.0000 SW-16T 05/19/94
36.8000 762.0000 SW-15T_05/19/94
74900.0000 91900.0000 SW-16T 05/19/94
2.0000 2.0000 SW-16T_05/19/94
141.0000 344.0000 SW-15T_05/19/94
18700.0000 24600.0000 SW-15T 05/19/94
14.5000 92.0000 SW-15T 05/19/94
3300.0000 11600.0000 SW-15T_05/19/94
5580.0000 20700.0000 SW-15T 05/19/94
Arithmetic
Mean
Cone.
56.750
399.400
83400.000
1.500
242.500
21650.000
53.250
7450.000
13140.000
Lowest
Observed
Detect. Limit
11.000
.
.
2.000





Highest
Observed
Detect. Limit
11.000
.
.
2.000
.
.
.
.
.
-------
                          SUMMARY STATISTICS FOR THE BENNINGTON SITE
ALL RESULTS IN UG/L OR UG/KG,  EXCEPT  INORGANIC SOIL RESULTS IN MG/KG AND AIR RESULTS  IN UG/M3

Class NAME
Inor. ALUMINUM
BARIUM
CALCIUM
IRON
MAGNESIUM
MANGANESE
POTASSIUM
SODIUM
ZINC
Num.
Times
Detected
2
2
2
2
2
2
2
2
2
Num.
Samples
Analyzed
2
2
2
2
2
2
2
2
2
±j.±r£j — ±rjnrt.o£j -Lo our\rj-i^iL vvj-i±iLr\ rxj_i±iLr\j
Lowest Highest Highest
Detected Detected Cone.
Cone.
13.
37
75100
8.
18800.
6.
3430.
5640.
7.
7000
.9000
.0000
3000
0000
7000
0000
0000
4000
15.
757
91800
68.
24600.
69.
11600.
20800.
8.
Cone. Locat.
6000
.0000
.0000
6000
0000
2000
0000
0000
3000
SW-16D_
SW-15D_
SW-16D_
SW-15D_
SW-15D_
SW-15D
SW-15D
SW-15D_
SW-15D
05/19/94
_05/19/94
05/19/94
05/19/94
05/19/94
05/19/94
05/19/94
05/19/94
05/19/94
2lLJ
Arithmetic Lowest Highest
Mean Observed Observed
Cone. Detect. Limit Detect. Limit
14.650
397.450
83450.000
38.450
21700.000
37.950
7515.000
13220.000
7850
-------
                           SUMMARY STATISTICS FOR THE BENNINGTON SITE
ALL RESULTS IN UG/L OR UG/KG,  EXCEPT INORGANIC SOIL RESULTS IN MG/KG AND AIR RESULTS  IN  UG/M3


Class
VOCs




Pest/PCBs


NAME
1, 1, 1-TRICHLOROETEANE
1, 1-DICHLOROETHANE
BENZENE
ETHYLBENZENE
XYLENE
AROCLOR 1242
Num.
Times
Detected
5
1
5
2
4
5
Num.
Samples
Analyzed
10
10
10
10
10
5
-L J
Lowest
Detected
Cone.
0.5050
0.1000
0.3270
0.2960
0.2900
0.0030
. ±r£j — J. r\^-u\ior £ir\
Highest
Detected
Cone.
2.0370
0.1000
1.6300
0.3090
1.4070
0.0059
O -L.rt.-L -L WIN -rt-Lr\ OJ-li'lJr.LjILji-'
Highest
Cone.
Locat .
TSR-2 10/23/92
TSR-2_10/23/92
TSR-2_10/23/92
TS-2 10/23/92
TSR-2_10/23/92
TSR-2 10/23/92
Arithmetic
Mean
Cone.
0.747
0.223
0.610
0.232
0.629
0.004
Lowest
Observed
Detect. Limit
0.466
0.242
0.466
0.242
0.466
.
Highest
Observed
Detect. Limit
1.076
0.746
1.256
0.746
1.377
.
-------
                           SUMMARY STATISTICS FOR THE BENNINGTON SITE
ALL RESULTS IN UG/L OR UG/KG,  EXCEPT INORGANIC SOIL RESULTS IN MG/KG AND AIR RESULTS  IN  UG/M3


Class
VOCs




Pest/PCBs


NAME
1, 1, 1-TRICHLOROETHANE
1, 4-DICHLOROBENZENE
BENZENE
ETHYLBENZENE
XYLENE
AROCLOR 1242
Num.
Times
Detected
3
1
3
1
3
5
Num.
Samples
Analyzed
6
6
6
6
6
5
j. j.±r.
Lowest
Detected
Cone.
0.3750
0.2670
0.2100
0.3330
0.3080
0.0002
QJ — j-irio x £ji\i I. .rt.-Lr\/u
Highest
Detected
Cone.
2.2220
0.2670
1.9440
0.3330
1.3330
0.0011
WVVIM VVXIMU .rt.-Lr\ oj-iivi±rj_iiLO
Highest
Cone.
Locat .
P6-2 10/23/92
P6-8_10/23/92
P6-2 10/23/92
P6-2_10/23/92
P6-2 10/23/92
P6-1 10/23/92
Arithmetic
Mean
Cone.
0.928
0.224
0.958
0.341
0.094
0.001
Lowest
Observed
Detect. Limit
0.400
0.375
0.400
0.375
0.749
.
Highest
Observed
Detect. Limit
3.208
0.556
5.417
1.833
7.500
.
-------
                          SUMMARY  STATISTICS FOR THE BENNINGTON SITE
ALL RESULTS IN UG/L OR UG/KG,  EXCEPT  INORGANIC SOIL RESULTS IN MG/KG AND AIR RESULTS IN UG/M3

Class
VOCs




Pest/PCBs

Name
1, 1, 1-TRICHLOROETHANE
BENZENE
CHLOROBENZENE
ETHYLBENZENE
XYLENE
AROCLOR 1242
Num.
Times
Detected
1
2
1
1
1
1
Num.
Samples
Analyzed
3
3
3
3
3
1
± j. ±r£j .rt.-Lr\ o^-iivi±rj_i
Lowest
Detected

1
0
4
5
12
0
Cone.
.2380
.5710
.2550
.1060
.3400
.0011
Hj o r r\wn WIN ox
Highest
Detected
Cone.
1.
11.
4.
5.
12.
0.
2380
0640
2550
1060
3400
0011
-L Hj J-l1— -L X V X -L J.
Highest
Cone.
Locat.
P4-6
P4-7
P4-7
P4-7
P4-7
P4-3
_10/26/92
_10/30/92
_10/30/92
10/30/92
10/30/92
10/26/92
Arithmetic Lowest
Mean Observed
Cone,
0,
3,
1.
1.
4,
0,
Detect. Limit
.696 0.549
.970 0.549
.589 0.476
.873 0.476
.455 0.952
.001
Highest
Observed
Detect.
1.
0,
0,
0,
1.

Limit
.149
.549
.549
.549
.099

-------
                          SUMMARY  STATISTICS FOR THE BENNINGTON SITE
ALL RESULTS IN UG/L OR UG/KG,  EXCEPT  INORGANIC SOIL RESULTS IN MG/KG AND AIR RESULTS IN UG/M3
Num.
Times
Class Name Detected
VOC s 1,1, 1 -TRI CHLOROETHANE 4
BENZENE 4
ETHYLBENZENE 1
XYLENE 2
Pest/PCBs AROCLOR 1242 4
AROCLOR 1254 3
±j.±r£j u±rvv_Li\iu .rt.-Lr\ o^-iivi±rj_iiLO
Num. Lowest Highest Highest
Samples Detected Detected Cone.
Analyzed Cone. Cone. Locat.
6 0.4450 1.5710 P3-2
6 0.3200 1.4640 P3-2
6 0.2320 0.2320 P3-2
6 0.5500 0.1710 P3-2
5 0.0002 0.0009 P2-2
5 0.0001 0.0001 P5-2
_10/23/92
_10/23/92
_10/23/92
10/23/92
10/23/92
10/22/92
Arithmetic Lowest Highest
Mean Observed Observed
Cone. Detect. Limit Detect. Limit
0.728 0.412 1.
0.592 0.412 0,
0.218 0.315 0,
0.545 0.562 1.
0.000 0.000 0,
0.000 0.000 0,
.149
.106
.562
.191
.000
.000
-------
                                                  APIENDIX C

                                          1997 Risk Assessment Tables



-------
                                       APPENDIX D

                           State of Vermont Concurrence Letter

Mary Jane O'Donnell, Chief, ME/VT/CT Superfund Section
Office of Site Remediation and Restoration
U.S. Environmental Protection Agency, Region 1
J.F. Kennedy Federal Building
Boston, Massachusetts, 02203-0001

RE: Concurrence with Record of Decision  (ROD) for Bennington Landfill Superfund Site
Bennington, VT (Site #77-0002)

Dear Mary Jane:

The State of Vermont concurs with the Record of Decision  (ROD) proposed by the Environmental Protection
Agency (EPA) for the Bennington Landfill Superfund Site. This concurrence is based on input from my staff,
who have reviewed the draft Record of Decision dated September 1989. The ROD summarizes the remedy that is
on-going under a non-time critical removal action (NTCRA), which should be completed in November 1998. The
ROD proposes that no further action, except monitoring, will be reguired at the site after the NTCRA is
completed. The NTCRA consists of the following:

              A Multi-Barrier Cap Over the Landfill  Area;
       •       An  upgradient diversion trench;
       •       A leachate collection system;
       •       Institutional Controls,  such as groundwater classification,  deed restrictions,  and access
              controls;
       •       Long-term Monitoring;
       •       Five-Year Review;  and

The State of Vermont believes that the no further action remedy, in conjunction with the NTCRA, is protective
of human health and the environment and meets all state reguirements that are applicable to remedial action.
Based on the Consent Degree, the EPA will monitor groundwater, surface water, and sediment monitoring in
years 1 through 10, and the State of Vermont will perform the monitoring in years 11 through 30.

Groundwater at this Superfund Site is in the process of being reclassified to a Class IV, that is non-potable
groundwater. The groundwater reclassification should be finalized within the next two weeks. I appreciate the
work that you and your staff, particularly Ed Hathaway have done to develop this remedy and to keep the DEC
involved during the NTCRA. If you need additional information on the State's position concerning the ROD,
please do not hesitate to contact me, George Desch,  or John Schmeltzer of my staff.


-------
                                            APPENDIX E






                                     Public Hearing Transcript





                                          PUBLIC HEARING





                                             FOR THE





                                       FINAL SUPERFUND ACTION





                                                AT





                                  BENNINGTON LANDFILL SUPERFUND  SITE





                                           AUGUST 11, 1998





                                         BENNINGTON, VERMONT

-------
1                MARY JANE O'DONNELL:   Good evening,





2    folks,  we might as well get started.  I would like to





3    welcome you to tonight's meeting on the public hearing





4    on the Bennington Landfill. We'll start off with





5    introductions. My name is Mary Jane O'Donnell, I work





6    for the Environmental Protection Agency in Boston,





7    Section Chief in that office.  And a couple of other





8    folks are here. Ed Hathaway, Ed also works for the





9    EPA,  he's the Project Manager for this particular site.





10   Some folks are here from the state that I wanted to





11   acknowledge:  John Schmeltzer, Elizabeth Hunt and Don





12   Robisky, and the role that they will play in this





13   project is going to be explained in his talk.





14   The purpose of tonight's meeting is to





15   formally accept folks' comments on our cleanup decision





16   or lack of cleanup decision to do any further work with





17   the groundwater at the Bennington landfill site. There





18   are two ways that people can formally comment on this





19   decision. One way is to make a statement at tonight's





20   meeting. The second way is to submit written comments





21   to the EPA by the close of our comment period which I





22   believe is August 21st. What we will do with those





23   comments is, first of all, we will review them and





24   secondly, use them to make improvements upon decisions






-------
1    that we have made already to see if there needs to be





2    any changes.





3              In terms of tonight's meeting,  a couple





4    of things are going to happen.  Ed is going to give a





5    presentation similar to the one he gave at the July





6    21st meeting, and I think it's  going to be a shorter





7    version. And he's going to discuss some of the studies





8    we have done in the past and our rationale for where we





9    are today and why we made our decision that we are





10   presenting tonight.





11             Upon concluding that, we will open the





12   floor to any comment from anyone in the audience who





13   might have a guestion. As you can see, the meeting is





14   being transcribed and we will be responding in writing,





15   as I said, to any comments that are made here tonight.





16             Because this is a public





17   hearing, it's somewhat formal in the sense that we





18   won't be in a position to answer guestions that folks





19   might have as a result of Ed's  presentation or anything





20   that anyone else says in tonight's meeting. However,





21   we will be more than happy to stay after the meeting to





22   answer the guestions that people might have. With that





23   as the background, I'm going to turn things over to Ed





24   for him to give his presentation.






-------
1             EDWARD HATHAWAY:  Okay,  once again,

2    welcome. The purpose of tonight's meeting is to

3    provide the opportunity for the public to offer formal

4    comments regarding the EPA proposed final Superfund

5    Action for the Bennington landfill site. All comments

6    will be recorded as part of the hearing. And any

7    guestions that you may have,  as Mary Jane mentioned,  we

8    will try to answer afterwards. In addition,  we have

9    people here from the Vermont DEC to entertain guestions

10   regarding the reclassification of the groundwater.

11            We are talking about the Bennington

12   Landfill located at Bennington,  Vermont, just off of

13   Houghton Lane. There is a transfer station there right

14   now and Audry Lane (phonetic) and AutoMakers are over

15   there, just for anyone who is looking to orient

16   themselves.

17            Just so you are aware,  everyone should

18   have a copy of tonight's overheads. The EPA contacts

19   for the site are myself, Edward Hathaway, there's an

20   address, phone number, fax number, and E-mail address;

21   in addition, Sarah White,  our community involvement

22   coordinator, and information regarding her is also

23   presented there.

24            As Mary Jane mentioned, the Vermont DEC

-------
1    project manager,  John Schmeltzer,  his name and number





2    are here,  as is the Town of Bennington contact,  Stuart





3    Kurd. Feel free to contact any of the individuals with





4    any guestions you may have.





5             For any site information that you may





6    want to review regarding this site,  at the office of





7    the town manager right here in Bennington, we have a





8    complete record of all the files regarding the site and





9    also in downtown Boston at the EPA Record Center. If





10   you have any trouble getting information regarding the





11   site, please give myself,  Sarah, or John Schmeltzer a





12   call.





13            Just in the way of background,  the site





14   is an approximately 15-acre solid waste landfill.





15   There is a transfer station that is currently located





16   at the site that is now being used by the town to the





17   white goods (phonetic) area, stump dump area. The





18   landfill itself was operated from 1969 to 1987.





19   Industrial waste, liguid industrial waste in





20   particular, was disposed there from 1969 to 1975, and





21   that was called the lagoon.





22            They installed an underdrain system, a





23   drainage system for part of the landfill in 1986. In





24   1989, the landfill was closed under the Vermont Solid









-------
1    Waste Closure Program.  It was placed on the EPA





2    National Superfund List in 1989.  Superfund





3    investigations began in 1991 to get through 1997.  The





4    first cleanup decision was made in 1994 ,  and the  work





5    in that cleanup decision began last year.





6             To provide a better understanding of the





7    flow chart for the site,  this flow chart here provides





8    the landfill operational history,  when the site was





9    closed, when we began work at the site.





10            And then the site was split into two





11   components. One is what we call a source control





12   component where that was the cleanup decision in 1994





13   which went through a design process and is now under





14   construction. There was also a groundwater component,





15   studying the groundwater, assessing how bad the





16   groundwater is, and the need to do any additional





17   cleanup work. And the time line for that is presented





18   here in the left-hand column.





19            As you will note here, the summer of





20   1998, the proposed plan,  is public comment. That is





21   the purpose of tonight's meeting,  is to seek public





22   comment upon our groundwater proposal.





23            For additional background information,





24   the results of those investigations that took place









-------
1    between 1991 and 1997 confirm the landfill is the





2    primary source of groundwater sediment contamination.





3             We originally found high levels of PCB's





4    in a drainage pond right adjacent to the landfill.





5    They discovered there are two groundwater systems at





6    the site. The shallow system is mostly a sand and





7    gravel unit. The shallow system is also the most





8    contaminated. The shallow system also discharges to a





9    wetland that feeds Hewitt Brook, and I'll show you that





10   in a second.





11            The deep groundwater system is both a





12   bedrock and a sand and gravel unit.  It's under a very





13   tight restrictive layer that does not allow interaction





14   between the shallow and the deep systems. We have





15   found low levels of contamination in the deep system,





16   but they have always been below acceptable drinking





17   water standards. For more information regarding all





18   these investigations, we'll refer you to the Rabeto





19   (phonetic)  Investigation Report, which is at the





20   information repositories that I previously mentioned.





21            To give you a sense of what I was trying





22   to describe, if you look at the landfill here, we have





23   a shallow groundwater system that is basically water





24   flowing above this dry till unit, that flows in the






-------
1    sand and gravel and eventually discharges into a





2    wetland at Hewitt Brook.  We also have the deep system





3    down here that's in the bedrock in this lower sand and





4    gravel unit.





5             I also want to show briefly the type of





6    work we are doing right now. We put in an upgradient





7    diversion trench, to prevent any water from coming in





8    under the landfill. We have excavated that highly





9    contaminated PCB area and placed it under the landfill.





10   We have intercepted the leachate that was exiting the





11   landfill, treated it in a groundwater treating plant,





12   and are discharging it back into the groundwater at





13   drinking water standards, very clean. We are also in





14   the process of putting a cap over this entire landfill





15   that will prevent any water from getting into it.





16            I also wanted to show the area that





17   we're talking about more specifically tonight which is





18   an area of groundwater contamination that emanates from





19   the landfill directly into the adjacent wetlands at





20   Hewitt Brook.





21            Critical to note is that the





22   contamination does not leave the property, it





23   totally -- completely discharges to the Hewitt wetland





24   area, and it stops short of any residential areas.






-------
1             Based upon all the studies and





2    investigations that were done,  EPA issued a what's





3    called a proposed plan, a fact sheet describing its





4    proposed course of action. Back over a month ago,  we





5    said,  we don't believe any further cleanup action is





6    necessary except for long-term monitoring of the





7    situation. The reason we made this proposal was that





8    the previous approved cleanup actions, what we're





9    doing out there right now, we believe will adeguately





10   control all the contamination at the site, that there





11   is no groundwater contamination outside the property





12   owned by the Town of Bennington, that deed restrictions





13   and reclassification of the groundwater will prevent





14   any future use of the contaminated groundwater.





15            And that, in addition, when you assess





16   the potential adverse health effects, if you were to





17   drink the contaminated ground water on a scale of, you





18   know,  good to really bad, it kind of comes out in the





19   middle, it's not horrible. It's something that if





20   someone were to come in contact with that for a short





21   period of time, it wasn't going to kill them. Now,





22   critical to note is we are not going to allow that to





23   happen because we are going to restrict the groundwater





24   and it's actually going to bring itself up over time.






-------
1             What are these previously approved





2    cleanup actions that I'm talking about? Well,  in 1994,





3    EPA initiated what's called a Non-Time-Critical Removal





4    Action. We sought public comment on that in July and





5    August of 1994. And as of 1997,  an agreement was in





6    place under which a group of responsible parties are





7    undertaking that work to clean up the site.





8             The major components of that work are





9    excavation of all soils and sediments with





10   polychlorinated biphenyls,  PCB's, above one part per





11   million. This was completed in May of 1998.





12            The collection and treatment of leachate





13   that was discharging from the landfill through an





14   underdrain system: The treatment system was completed





15   in December, '97, and since then we have been





16   collecting and treating the water and discharging it





17   below drinking water standards — cleaner than drinking





18   water standards.





19            The interception of upgradient





20   groundwater and surface water and diversion of that





21   water around the landfill:  What we mean by that is





22   that water, clean water, that was flowing downhill and





23   previously flowing under the landfill picking up





24   contamination and flowing out into the groundwater






-------
1    contamination area,  is now being diverted around the





2    landfill so that the amount of water that enters the





3    area under the landfill that's contaminated has been





4    significantly reduced by this action,  and also will be





5    extremely reduced by the cap that's being placed on the





6    landfill. As I just mentioned, the installation of a





7    multi-barrier landfill cap over all the waste material





8    was begun in May, 1998 and was expected to be completed





9    in November. In addition to those physical activities,





10   institutional controls which include deed restrictions,





11   which is essentially the Town of Bennington placing a





12   permanent restriction on the use of that property that





13   says that property can never be residentially





14   developed, you can never damage the cap, and you can





15   never use the groundwater for residential drinking





16   water purposes. In addition to that, the





17   reclassification of the groundwater by the Vermont DEC





18   also assures that no one can drill a well in that water





19   and use it for any drinking water purposes.





20            Just to give you an idea of what I mean





21   by the multi-barrier cap, the cap we're building on the





22   landfill has multiple layers. It has over two feet of





23   soil on top of it to allow it to grow a good grass





24   cover. It's got two barrier layers, which is why we






-------
1    call it a multi-barrier.  It's got a big sheet of





2    plastic over the entire landfill. And it's got a small





3    panel of clay that basically stops anything that gets





4    through the plastic from going any further because the





5    clay swells up and seals  the hole. Below that we have





6    a gas ventilator that controls the release of any gas





7    that builds up against the bottom of the cap.





8             This figure right here shows the area of





9    property that is owned by the Town of Bennington,  but





10   is being subject to the deed restrictions. And it's





11   also the same property that is subject to the





12   institutional controls that will prevent both future





13   use of groundwater, future use from a development





14   perspective, and future use from any installation of





15   drinking water wells.





16            So what was the  effect of the previous





17   cleanup action, what we call the NTCRA? The placement





18   of the PCB contaminated soils and sediments under the





19   cap prevented any contact with those materials,





20   therefore, they are no longer a threat.





21            As I mentioned,  the upgradient diversion





22   system prevents clean water from flowing under the





23   landfill and mixing with contaminated material.





24            The leachate collection and treatment






-------
1    system stopped the discharge of contaminated water into





2    the wetlands.  It takes that water and cleans it up and





3    puts it back into the groundwater clean.





4             The multi-barrier cap prevents any





5    future contact with any of the waste material.  We have





6    got a several foot thick barrier that prevents  any





7    contact. It also significantly reduces the amount of





8    water that could possibly enter the landfill to create





9    any additional contamination.  As I mentioned,  the deed





10   restrictions and groundwater reclassification will





11   assure that no one uses that water for long distances





12   into the future.





13            And what we believe is, in addition,  all





14   the items we talked about are controlled technologies:





15   The cap, the leachate collection system,  the diversion





16   system. They are all going to work together to





17   substantially improve the groundwater guality at the





18   landfill. And we believe at some point in time  in the





19   not too distant future, the groundwater will actually





20   be cleaned.





21            When we made the decision to implement





22   all those actions I just talked about, we did not





23   include in that a decision as to whether the





24   groundwater away from the landfill needed to be cleaned






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1    up by itself.  We postponed that decision until now.





2    So the EPA,  after that,  did an evaluation by assessing





3    the potential  adverse health effects from exposure to





4    the contaminated groundwater.





5             Potential is the key word here because,





6    as I mentioned,  we don't believe anyone could ever come





7    in contact with that groundwater because of the deed





8    restrictions and the reclassification.  But we needed





9    to assess that just in case it ever did happen.





10            To perform that assessment, we completed





11   documents known as risk assessments. We've done three





12   of them at the site. They were done in different





13   scenarios. The most recent one is Risk Assessment 3  in





14   February of 1998, based upon all the latest desk





15   information that the EPA has available on how to





16   estimate groundwater exposure risks.





17            The first risk assessment was used to





18   say we needed  to do the landfill cap. The second and





19   third risk assessments really focused on what level  of





20   risk might exist to the consumption of the groundwater.





21   And I guess the critical factor here is that the level





22   of risk from drinking two liters of the most





23   contaminated groundwater at the site near the landfill





24   would be what  essentially is called five times ten to






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1    the -- it's actually negative four,  or it's five --





2    potential for five additional cancer cases per ten





3    thousand.





4             Nationally, EPA believes that an action





5    should be taken whenever a risk is substantially





6    greater than one times ten of the four.  And when you





7    split it between one times ten of the four, to nine





8    times ten of the four, you're really in the range that





9    warrants further evaluation as to what the mitigating





10   factors are, like potential groundwater use.





11            And the other factors that we considered





12   at this site were the fact that the groundwater guality





13   will improve as a result of the actions we have already





14   taken. And that deed restrictions and reclassification





15   will effectively prevent any use of this groundwater





16   into the future.





17            So, therefore,  based upon all the work





18   we've done to date,  all the cleanup actions that we're





19   taking right now, the fact that no one could possibly





20   use the groundwater, and that it's also going to clean





21   up over time, the EPA believes that no further action





22   in addition to the substantial work that's been done





23   out there is necessary.  So we're proposing to close





24   out the site with a proposal for 30 years of long-term






-------
1    monitoring.  And the cost of this is $1.5 million





2    dollars.





3             The period from July 22nd to August 21st





4    is a critical time period.  Any member of the community





5    is free to offer comment both tonight and in writing to





6    the EPA before August 21st. Tonight is the public





7    hearing. We encourage the public to comment, whether





8    it be positive or negative, about our proposed action.





9    As was mentioned earlier, for tonight, if you want to





10   make a comment, all you need to do is when I am done, I





11   will announce the comment portion is open, stand up,





12   introduce yourself, provide whatever comment you have





13   to EPA, it will be recorded. And then we will respond





14   to those in writing as part of our decision document.





15            If you only have guestions about what we





16   are doing, wait until the comment period closes and we





17   will be glad to answer whatever guestions you have. I





18   also want to remind you that any information you may





19   want about the site is available at the Bennington Town





20   Office or the EPA Record Center. I also want to remind





21   you that attached to the handout is the addresses and





22   names to send any comments that you may have.





23            Now, there's a second purpose to





24   tonight's meeting from a formal perspective, and that






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1    is to provide an opportunity for any comments the





2    public may want to provide regarding groundwater





3    reclassification.  And I will introduce Don Robisky





4    from the State of Vermont to briefly discuss the





5    Vermont reclassification.





6             DONALD ROBISKY: I am Don Robisky,  and I





7    work for the Vermont Department of Environmental





8    Conservation. As Ed has explained, part of the





9    proposal for no further action on this site is that





10   there will be institutional controls over the





11   groundwater under the landfill and directly





12   downgradient of it.





13            And there are two institutional controls





14   that the State of Vermont has agreed to participate in.





15   The first is the environmental easement which the Town





16   of Bennington has granted to the State of Vermont and





17   for their property which includes everything you see in





18   the shaded area, the parcel -- there are two parcels,





19   one is the landfill and one is the downgradient portion





20   here where there is some contaminated groundwater,





21   which is defined by this small line here.





22            What this means is that no one can do





23   anything on this site which would in any way impair the





24   remedy that's already been put in place, or to in any






-------
1    way extract or even come in contact with the





2    groundwater without the State of Vermont's permission.





3    So this assures the public that the Town of Bennington





4    or any future owner of this site,  should that happen,





5    could not simply go out on the site and do anything





6    with the landfill or the groundwater.





7             The second portion that was mentioned is





8    the reclassification.  And what that is is the Town of





9    Bennington, who is the owner of the property,





10   petitioned the State of Vermont to reclassify the





11   groundwater both under the landfill and directly





12   downgradient.  And it's the entire shaded area as shown





13   here as Class IV.





14            Class IV waters,  groundwaters,  are not





15   considered suitable for drinking purposes. And in any





16   permitting action that the state might have under it's





17   jurisdiction,  the state would not be allowed to permit





18   anybody to extract that ground water and use it.





19            So with these two constraints and the





20   reclassification -- this hearing is also a hearing on





21   reclassification, EPA has been gracious enough to let





22   us share their time for that purpose.  And we are





23   holding open our comment period through the end of this





24   month. But, having reviewed the application from the






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1    Town of Bennington,  the department does propose to





2    reclassify this groundwater as Class IV. But we will





3    consider any commentary we receive through the end of





4    the month. And I think that's everything about the





5    institutional controls.





6             EDWARD HATHAWAY:  With that, we close





7    the comment process and I'll reintroduce Mary Jane





8    to —





9             MARY JANE O'DONNELL: We will open





10   things again for the comments that folks might have.





11   If you have any formal comments on our proposed





12   decision not to do any further action with the





13   Bennington landfill and the reclassification that Don





14   mentioned, please come forward, state your name, and





15   please feel free to comment at that point. Would





16   anyone like to come forward? Don.





17            DONALD ROBISKY: I'm Don Robisky with





18   the Vermont Department of Environmental Conservation.





19   And for the record,  I would like to state the State of





20   Vermont does support the proposal of EPA for no further





21   action on this site. We have reviewed all the tenable





22   information and agree with the case findings.





23            MARY JANE O'DONNELL: Thanks, Don. Is





24   there anyone else who would like to make comments?






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1    Seeing that there aren't any additional comments,  the

2    public part of the meeting is closed.

3               (Whereupon,  the public meeting concluded

4    at 7:35 p.m.)



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                                         APPENDIX F

                                   RESPONSIVENESS SUMMARY
I.    Introduction
This document summarizes the community involvement activities implemented by EPA at the Bennington Landfill
Superfund Site. EPA held a public comment period from July 21, 1998 through August 20, 1998 regarding a
Proposed Plan that recommended No Further Action at the Bennington Landfill Superfund Site. The basis for the
No Further Action proposal was that the extensive activities implemented as part of the non-time-critical
removal action  (NTCRA) have resolved all Site risks. The NTCRA included: the excavation of PCB contaminated
soils and sediments; placement of a multi-barrier cap over the landfill; collection and treatment of the
leachate; diversion of upgradient groundwater; and institutional controls to prevent future use of the Site
and the contaminated groundwater. The Administrative Record for the Site contains all of the relevant
supporting information to support the No Further Action decision. The Administrative Record is available at
the EPA Record Center at 90 Canal Street in Boston, Ma. and at the Office of the Town Manager in Bennington,
VT.

II. Community Involvement Opportunities

Throughout the Site's history, community concern and involvement has been low. EPA has kept the community and
other interested parties apprized of the Site activities through informational meetings, fact sheets, press
releases and public meetings.

During April 1992, EPA released a community relations plan which outlined a program to address community
concerns and keep citizens informed about and involved in activities during remedial activities.

On July 14, 1994 EPA released a fact sheet describing a proposed early cleanup action at the Site. On July
21, 1994 EPA held a public meeting to present a proposed early response action at the Site and to provide an
update with respect to the results of the RI/FS. The early response action involved the use of EPA's NTCRA
authority to control the source of the contamination at the Site. EPA held a 30-day public comment period
regarding the proposed NTCRA from August 15, 1994 to September 15, 1994 EPA held a public hearing on
September 13, 1994. An Action Memorandum documenting the selection of the NTCRA and including a Response to
Comments was signed December 19, 1994

A public information fact sheet was released in September 1997 to describe the NTCRA after completion of the
design phase and in anticipation of the construction activities. The September 1997 fact sheet also provided
an update of the RI/FS A public meeting was held in September 1997 to answer any guestions regarding Site
activities. Another fact sheet was released in May 1998 to further update the NTCRA construction program and
the RI/FS activities.

On July 20, 1998, EPA made the administrative record available for public review at EPA's offices in Boston
and at the Bennington Town Manager's Office. EPA published a notice and brief analysis of the Proposed Plan
in the Bennington Banner on July 8, 1998 and made the plan available to the public at the Bennington Town
Manager's Office.

On July 21, 1998 EPA held an informational meeting to discuss the results of the Remedial Investigation and
to present the Agency's Proposed Plan. Also during this meeting, the Agency answered guestions from the
public. From July 22, 1998 to August 21, 1998, the Agency held a 30-day public comment period to accept
public comment on the alternatives presented in the Proposed Plan and on any other documents previously
released to the public.

On August 11, 1998 the Agency held a public meeting to discuss the Proposed Plan and to accept any oral
comments. EPA sent a notice of the public hearing to the Site mailing list in addition to an announcement in
the local newspaper. Only 1 member of the public attended the public hearing and no public comment was
offered.

No public comments were received at the public hearing or during the comment period. The State of Vermont
indicated an intent to concur with the proposed action during the August 11 public hearing.

III. RESPONSE TO COMMENTS

EPA acknowledges the statements made by the VT DEC at the public hearing expressing the intent of VT DEC to
concur with the remedy.

No response to comments is provided as no comments were received.
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                                        APPENDIX G

                                ADMINISTRATIVE RECORD INDEX

03.06  REMEDIAL INVESTIGATION - REMEDIAL INVESTIGATION REPORTS

Title:             Final Draft, Remedial Investigation report, Bennington Landfill  Site,  Burlington, Vermont,
                   Vols. I-XI and Supplement.
Addressee:         US EPA REGION 1
Authors:           MCLAREN/HART ENVIRONMENTAL ENGINEERING
Date:              February 14, 1997
Format:            REPORT, STUDY
AR No.             03.06.                       Document No.  000001

Title:             Approval of the Remedial Investigation Report Submitted by de maximis,  Inc.  on  February
                   14, 1997.
Addressee:         GEOFFREY SIEBEL - DE MAXIMIS INC
Authors:           MARY JANE 0'DONNEL - US EPA REGION 1
Date:              December 23, 1997
Format:            LETTER                       No. Pgs: 1
AR No.             03.06.2                      Document No.  000002

03.09  REMEDIAL INVESTIGATION HEALTH ASSESSMENTS

Title:             Final Risk Assessment, Bennington Landfill, Bennington, VT.
Addressee:         US EPA REGION 1
Authors:           TRC COMPANIES INC
Date:              June 1995
Format:            REPORT, STUDY
AR No.             03.09.2                      Document No.  000003

Title:             Risk Assessment Addendum for Overburden Groundwater, Bennington  Landfill  Superfund  Site,
                   Bennington, Vermont.
Addressee:         US EPA REGION 1
Authors:           TRC COMPANIES INC
Date:              June 1997
Format:            REPORT STUDY                 No. Pgs: 50
AR No.             03.09.2                      Document No.  000004

04.06  FEASIBILITY STUDY - FEASIBILITY STUDY REPORTS

Title:             Modification in Statement of Work: No Feasibility Study Reguired
Addressee:         GEOFFREY SIEBEL - DE MAXIMIS INC
Authors:           MARY JANE 0'DONNELL - US EPA REGION 1
Date:              March 18, 1998
Format:            LETTER                       No. Pgs:  1
AR No.             04.06.1                      Document No.  000005

Title:             Summary Assessment Report, Bennington Landfill Site, Bennington, Vermont.
Date:              June 10, 1998
Format:            REPORT STUDY
AR No.             04.06.2                      Document No.  000006

Title:             Approval of the Summary Assessment Report
Addressee:         GEFFEREY SIEBEL - DE MAXIMIS INC
Authors:           MARY JANE 0'DONNELL - US EPA REGION 1
Date:              June 16, 1998
Format:            LETTER                       No. Pgs:  1
AR No.             04.06.3                      Document No.  000021
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04.09

Title:
                   FEASIBILITY STUDY - PROPOSED PLANS FOR  SELECTED  REMEDIAL ACTION
                   EPA Proposes No Further Action for Bennington  Landfill  Superfund Site/VT Dept.  of
                   Environmental Conservation Seeks Comments  on Groundwater  Reclass....
Authors:           US EPA REGION 1
Date:              July 1998
Format:            FACT SHEET, PRESS RELEASE    No. Pgs:   18
AR No.             04.09.1                      Document No.   000025
05.04  RECORDS OF DECISION - RECORD OF DECISION
Title:
Authors:
Date:
Format:
AR No.
                   Record of Decision.
                   ENVIRONMENTAL PROTECTION AGENCY/REGION  1
                   September 29, 1998
                   05.04.1
                                                Document No.   000028
06.04  REMEDIAL DESIGN - REMEDIAL DESIGN REPORTS
Title:

Addressee:
Authors:

Date:
Format:
AR No.
                   Conditional Approval for the Pilot Test  Portion  of  the  Leachate  Collection and Treatment
                   System  (LCTS) Design.
                   GEOFFREY SIEBEL - DE MAXIMIS,  INC.
                   MARY JANE 0'DONNELL - ENVIRONMENTAL  PROTECTION
                   AGENCY/REGION 1
                   November 26, 1997
                   LETTER                       No.  Pgs:  5
                   06.04.1                      Document No.  000007
Title:

Addressee:
Authors:

Date:
Format:
AR No.
                   Approval of the Final Design for  the Landfill  Cap,  Groundwater Interceptor Trench,  etc.,
                   and Conditional Approval of the LCTS.
                   GEOFFREY SIEBEL - DE MAXIMIS,  INC.
                   MARY JANE 0'DONNELL - ENVIRONMENTAL PROTECTION
                   AGENCY/REGION 1
                   April 21, 1998
                   LETTER                       No.  Pgs:  3
                   06.04.2                      Document  No.  000008
Title:
Addressee:
Authors:

Date:
Format:
AR No.
                   Comments on Proposed Field Change Reguests  1-10.
                   GEOFFREY SIEBEL - DE MAXIMIS,  INC.
                   EDWARD HATHAWAY - ENVIRONMENTAL  PROTECTION
                   AGENCY/REGION 1
                   April 29, 1998
                   LETTER                       No. Pgs:   1
                   06.04.3                      Document No.   000009
Title:

Addressee:
Authors:
Date:
Format:
AR No.
                   100 Percent Design Report, Non-Time-Critical  Removal Action, Vols  I-III,  with Engineering
                   Drawings  [Available at EPA Records Center].
                   BENNINGTON PERFORMING PARTIES
                   DAMES & MOORE
                   June 1998
                   REPORT, STUDY
                   06.04.4                      Document No.   000010
Title:
Addressee:
Authors:

Date:
Format:
AR No.
                   Conditional Acceptance of the Proposed  Field  Change  Reguests.
                   GEOFFREY SIEBEL - DE MAXIMIS, INC.
                   EDWARD HATHAWAY - ENVIRONMENTAL  PROTECTION
                   AGENCY/REGION 1
                   June 19, 1998
                   LETTER                       No.  Pgs:   1
                   06.04.5                      Document No.   000022
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07.02  REMEDIAL ACTION - SAMPLING & ANALYSIS DATA

Title:             Long-Term Monitoring Plan, Sampling Results, Spring  1997, Bennington Municipal  Landfill
                   Site, Bennington, Vermont.
Addressee:         ENVIRONMENTAL PROTECTION AGENCY/REGION  1
Authors:           MCLAREN/HART ENVIRONMENTAL ENGINEERING
Date:              August 19, 1997
Format:
AR No.             07.02.1                      Document No.   000011

07.05  REMEDIAL ACTION - REMEDIAL ACTION REPORTS

Title:             Construction Oversight Findings for 1997, Bennington Municipal  Landfill,  Bennington,
                   Vermont.
Addressee:         EDWARD HATHAWAY - ENVIRONMENTAL PROTECTION
                   AGENCY/REGION 1
Authors:           TRC COMPANIES, INC.
Date:              February 1998
Format:             REPORT, STUDY                No. Pgs:   28
AR No.             07.05.1                      Document No.   000012

09.01  STATE COORDINATION - CORRESPONDENCE

Title:             Comments on Draft Post Removal Site Plan and Operation  and Maintenance Manual for  the
                   Leachate and Treatment System.
Addressee:         EDWARD HATHAWAY - ENVIRONMENTAL PROTECTION
                   AGENCY/REGION 1
Authors:           DONALD ROBISKY - VT DEPT. OF ENVIRONMENTAL
                   CONSERVATION
Date:              December 31, 1997
Format:             LETTER                       No. Pgs:   3
AR No.             09.01.1                      Document No.   000013

10.08  ENFORCEMENT/NEGOTIATION - EPA CONSENT DECREES

Title:             Administrative Order on Consent for Removal Action Design at  the  Bennington  Landfill
                   Superfund Site, EPA Region I Docket No. CERCLA-I-96-1014.
Authors:           ENVIRONMENTAL PROTECTION AGENCY/REGION  1
Date:              November 22, 1996
Format:             MISCELLANEOUS
AR No.             10.08.1                      Document No.   000014

Title:             Consent Decree for U.S., State of Vermont v. Town of Bennington,  Et Al.
Authors:           ENVIRONMENTAL PROTECTION AGENCY/REGION  1
Date:              April 1997
Format:             MISCELLANEOUS
AR No.             10.08-2                      Document No.   000015

1.14  POTENTIALLY RESPONSIBLE PARTIES - TITLE SEARCHES

Title:             Grant of Environmental Restrictions and Right of Access.
Authors:           TOWN OF BENNINGTON
Date:              July 1, 1998
Format:             MISCELLANEOUS                No. Pgs:   14
AR No.             11.14.1                      Document No.   000026

13.03  COMMUNITY RELATIONS - NEWS CLIPPINGS/PRESS RELEASES

Title:             EPA Public Meeting to Discuss Proposed  Cleanup  Plan  for the Bennington Landfill Superfund
                   Site.
Authors:           ENVIRONMENTAL PROTECTION AGENCY/REGION  1
Date:              July 13, 1994
Format:             FACT SHEET, PRESS RELEASE    No. Pgs:   18
AR No.             13.03.1                      Document No.   000016
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Title:             Agreement Reached on Bennington Landfill Superfund Site, Public Comment  Invited.
Authors:           ENVIRONMENTAL PROTECTION AGENCY/REGION 1
Date:              July 15, 1997
Format:            FACT SHEET, PRESS RELEASE     No. Pgs:  3
AR No.             13.03.2                       Document No.  000017

Title:             Announcement of the Availability of the Administrative Record and Opportunity  for  the
                   Public to Comment on the Proposed Plan for Bennington Lf.
Authors:           ENVIRONMENTAL PROTECTION AGENCY/REGION 1
Date:              July 1, 1998
Format:            NEWS CLIPPING                 No. Pgs:  1
AR No.             13.03.3                       Document No. 000024

13.04  COMMUNITY RELATIONS - PUBLIC MEETINGS/HEARINGS

Title:             Public Information Meeting for the Bennington Municipal Landfill Superfund Site.
Date:              September 17, 1997
Format:            PUBLIC MEETING RECORDS        No. Pgs:  26
AR No.             13.04.1                       Document No.  000018

Title:             EPA Meeting Sign Up Sheet.
Date:              September 17, 1997
Format:            PUBLIC MEETING RECORDS        No. Pgs:  1
AR No.             13.04.2                       Document No.  000019

Title:             Public Hearing for the Final Superfund Action at Bennington Landfill Superfund Site.
Authors:           ENVIRONMENTAL PROTECTION AGENCY/REGION 1
Date:              August: 11, 1998
Format:            PUBLIC MEETING RECORDS        No. Pgs:  21
AR No.             13.04.3                       Document No.  000027

13.05  COMMUNITY RELATIONS - FACT SHEETS /INFORMATION UPDATES

Title:             Construction Activities Begin at the Bennington Municipal Landfill Superfund Site.
Authors:           ENVIRONMENTAL PROTECTION AGENCY/REGION 1
Date:              September 1997
Format:            FACT SHEET, PRESS RELEASE     No. Pgs:  10
AR No.             13.05.1                       Document No.  000020

Title:             Progress Update:  Construction Activities to Re-Start at the Bennington  Municipal  Landfill
                   Superfund Site.
Authors:           ENVIRONMENTAL PROTECTION AGENCY/REGION 1
Date:              May 1998
Format:            FACT SHEET, PRESS RELEASE     No. Pgs:  7
AR No.             13.05.2                       Document No.  000023
-------