svEPA
United States
Environmental Protection
Agency
Solid Waste And
Emergency Response
(5201 G)
EPA/540/R-95/099
PB95-962931
9200.5-729C
May 1995
SUPERFUND:
Progress at
National
Priority
List Sites
NEW HAMPSHIRE
1995 UPDATE
Printed on Recycled Paper
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How to Use the NPL Book
r
r-
The site fact sheets presented in this book
are comprehensive summaries that cover a
broad range of information. The fact sheets
describe hazardous waste sites on the NPL and
their locations, as well as the conditions
leading to their listing ("Site Description").
The summaries list the types of contaminants
that have been discovered and related threats
to public and ecological health ("Threats and
Contaminants"). "Cleanup Approach" pres-
ents an overview of the cleanup activities
completed, underway, or planned. The fact
sheets conclude with a brief synopsis of how
much progress has been made in protecting
public health and the environment. The
summaries also pinpoint other actions, such as
legal efforts to involve polluters responsible
for site contamination and community con-
cerns.
The fact sheets are arranged in alphabetical
order by site name. Because site cleanup is a
dynamic and gradual process, all site informa-
tion is accurate as of the date shown on the
bottom of each page. Progress is always being
made at NPL sites, and the EPA periodically
will update the site fact sheets to reflect recent
actions. The following two pages show a
generic fact sheet and briefly describe the
information under each section.
How Can You Use
This State Book?
You can use this book to keep informed
about the sites that concern you, particu-
larly ones close to home. The EPA is commit-
ted to involving the public in the decision
making process associated with hazardous
waste cleanup. The Agency solicits input from
area residents in communities affected by
Superfund sites. Citizens are likely to be
affected not only by hazardous site conditions,
but also by the remedies that combat them.
Site cleanups take many forms and can affect
communities in different ways. Local traffic
may be rerouted, residents may be relocated,
temporary water supplies may be necessary.
Definitive information on a site can help
citizens sift through alternatives and make
decisions. To make good choices, you must
know what the threats are and how the EPA
intends to clean up the site. You must under-
stand the cleanup alternatives being proposed
for site cleanup and how residents may be
affected by each one. You also need to have
some idea of how your community intends to
use the site in the future, and you need to know
what the community can realistically expect
once the cleanup is complete.
The EPA wants to develop cleanup methods
that meet community needs, but the Agency
only can take local concerns into account if it
understands what they are. Information must
travel both ways in order for cleanups to be
effective and satisfactory. Please take this
opportunity to learn more, become involved,
and assure that hazardous waste cleanup at
"your" site considers your community's
concerns.
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NPL LISTING HISTORY
Provides the dates when the
site was Proposed, made Final,
and Deleted from the NPL.
SITE RESPONSIBILITY
Identifies the Federal, State,
and/or potentially responsible
parties taking responsibility
for cleanup actions at the site.
ENVIRONMENTAL
PROGRESS
Summarizes the actions to
reduce the threats to nearby
residents and the surrounding
environment and the progress
towards cleaning up the site.
SITE NAME
STATE
EPAID# ABCOOOOOOO
Site Description
EPA REGION XX
COUNTY NAME
LOCATION
Other Names:
: xxx xxxxx xxxxxxxxxxxx xxxxxx xxxxxxxxx xxxxxxxx xxxxxxxxxxxxx :
: xxxxxxxxxx xxxx xxxxxxxx xxxx xx xxxxxxxxx xx xxxxxx xxxxxxxx \
: xxx xxxxxxxxxxxxx xx xxxxxx xxxx xxxxx xxxx x xxx ,
xxxxxxx xxx xxxjtXM^txxxxx xxxxx xxxxxx xxxxxxxx xxxxxxxx xxxx xxxxxxxxxx :
xxxxxxxxxxxx xxxxxxxxx^Bwq^c xxx xx xxxxxxxxx xxxxx xxxx xxxx xxxxx xxxxxxx xxxxxxxx
xxxxxxxx xxxxxxxxx xxxx xxxxte*«txxxxx xxxxxxxx xxxxx xxxx xxxxx xxx xxx xxxxxx
xxxxxxxxxxxx xx xxxxxxx xxx xxxxx xjOOsfc^xx xxxxxx xx xxxx xxx xxxxx xxx xxxxx xxx xxxxx
Site Responsibility:
xxxxxx xxx xxxxx :
xxxxxx xxxxxxxxx xxxxxxxx
xxxxxxxxxxxxx xxxxxxxxx
NPL Listing History
Proponed. XX/XX/XX
Final XX/XX/XX
Threats and Contaminants
xxxxxx xxx xxxxx xxxxxxxxxxxx xxxxxx xxxxxxxxx xxxxxxxx
XXXXXXXXX XXXXXXXXXXXXX XXXXXXXXXX XXXX XXXXXXXX XXXX XX XXXXXXXXX
XXXXXXXX XXX XXXXXXXXXXXX XXXXX XXX XXXXXXXXXXXXX XX XXXXXX XXXX
xxx xxxxxxxxxx xxxxxxxx xxxxxxx xxx xxxxxx xxxxxx xxxxx xxxxxx
XXXXXXXX XXXX XXXXXXXXXX XXXXXXXX XXXXXXXXXXXX XXXXXXXXX XXXX X XXX XX
xxxx xxxx xxxxx xxxxxxx xxxxxxxx xxxxxxxx xxxxxxxxx xxxx xxxx xxxxx xxxx
Cleanup Approach
xxxxxx xxx xxxxx xxxxxxxxxxxx xxxxxx xxxxxxxxx xxxxxxxx xxxxxxxxxxxxx
XXXXXXXXXXXXX XXXXXXXXXX XXXX XXXXXXXX XXXX XX XXXXXXXXX XX XXXXXX XXXXXXXX
XXXXXXXXXXXX XXXXX XXX XXXXXXXXXXXXX XX XXXXXX XXXX XXXXX XXXX X XXX XXXXXXXX
Response Action Status
xxxxxx xxx xxxxx xxxxxxxxxxxx xxxxxx xxxxxxxxx xxxxxxxx :
XXXXXXXXXXXXX XXXXXXXXXX XXXX XXXXXXXX XXXX XX XXXXXXXXX XX :
XXXXXXXXXXXX XXXXX XXX XXXXXXXXXXXXX XX XXXXXX XXXX XXXXX :
xxxxxxxx xxxxxxx xxx xxxxxx xxxxxx xxxxx xxxxxx xxxxxxxx :
xxxxxxxxxx xxxxxxxx xxxxxxxxxyxx xxxxxxxxx xxxx x xxx xx xxxxxxxxx xxxxx xxxx xxxx xxxxx
xxxxxxx xxxxxxxx xxxxxxxx xxxxxxxxx xxxx xxxx xxxxx xxxx xxxxxxxx xxxxx xxxx xxxxx xxx
XXX XXXXXX XXXXXXXXXXXX XX XXXXXXX XXX XXXXXX XX XXXXXX XXXXXXXX XXX .
Site Facts:
XXXXXXXXX XXXXXXXXXXXXX XXXXXXXXXX XXXX XXXXXXXX XXXX XX XXXXXXXXX XX XXXXXX
XXXXXXXXXXXX XXXXX XXX XXXXXXXXXXXXX XX XXXXXX XXXX XXXXX XXXX X XXX
xxx xxxxxx
Environmental Progress
xxxxxx xxx xxxxx xxxxxxxxxxxx xxxxxx xxxxxxxxx xxxxxxxx xxxxxxxxxxxxx xxxxxxxxx
XXXXXXXXXXXXX XXXXXXXXXX XXXX XXXXXXXX XXXX XX XXXXXXXXX XX XXXXXX XXXXXXXX XXX
XXXXXXXXXXXX XXXXX XXX XXXXXXXXXXXXX XX XXXXXX XXXX XXXXX XXXX X XXX XXXXXXXXXX
XXXXXXXX XXXXXXX XXX XXXXXX XXXXXX XXX XXXXX XXXXXXXXXXXX XXXXXX XXXXXXXXX XXXXXXXX
Site Repository
xxxxxx xxx xxxxx xxxxxxxxxxxx xxxxxx xxxxxxxxx xxxxxxxx xxxxxxxxxxxxx xxxxxxxxx
SITE REPOSITORY
Lists the location of the primary site repository. The site
repository may include community relations plans, public
meeting announcements and minutes, fact sheets, press
releases, and other site-related documents.
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SITE DESCRIPTION
This section describes the location and history of the site. It includes descrip-
tions of the most recent activities and past actions at the site that have con-
tributed to the contamination. Population estimates, land usages, and nearby
resources give readers background on the local setting surrounding the site.
THREATS AND CONTAMINANTS
The major chemical categories of site contamination are noted, as well as
which environmental resources are affected. Icons representing each of the
affected resources (may include air, groundwater, surface water, soil, and
contamination to environmentally sensitive areas) are included in the margins
of this section. Potential threats to residents and the surrounding environ-
ments arising from the site contamination also are described.
CLEANUP APPROACH
This section contains a brief overview of how the site is being cleaned up.
RESPONSE ACTION STATUS
Specific actions that have been accomplished or will be undertaken to clean
up the site are described here. Cleanup activities at NPL sites are divided
into separate phases, depending on the complexity and required actions at the
site. Two major types of cleanup activities often are described: initial,
immediate, or emergency actions to quickly remove or reduce imminent
threats to the community and surrounding areas; and long-term remedial
phases directed at final cleanup at the site. Each stage of the cleanup strategy
is presented in this section of the summary. Icons representing the stage of
the cleanup process (initial actions, site investigations, EPA selection of the
cleanup remedy, engineering design phase, cleanup activities underway, and
completed cleanup) are located in the margin next to each activity descrip-
tion.
SITE FACTS
Additional information on activities and events at the site are included in this
section. Often details on legal or administrative actions taken by the EPA to
achieve site cleanup or other facts pertaining to community involvement with
the site cleanup process are reported here.
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Guide to the NPL Book Icons
The "icons," or symbols, accompanying the text allow the reader to see at a glance which envi-
ronmental resources are affected and the status of cleanup activities at the site.
Icons in the Threats
and Contaminants
Section
Icons in the Response
Action Status Section
Contaminated Groundwater re-
sources in the vicinity or underlying
the site. (Groundwater is often used
as a drinking water source.)
Contaminated Surface Water and
Sediments on or near the site.
(These include lakes, ponds,
streams, and rivers.)
Contaminated Air in the vicinity of
the site. (Air pollution usually is
periodic and involves contaminated
dust particles or hazardous gas
emissions.)
Contaminated Soil and Sludges on
or near the site. (This contamination
category may include bulk or other
surface hazardous wastes found on
the site.)
Threatened or contaminated Envi-
ronmentally Sensitive Areas in the
vicinity of the site. (Examples
include wetlands and coastal areas
or critical habitats.)
Initial, Immediate, or Emergency
Actions have been taken or are
underway to eliminate immediate
threats at the site.
Site Studies at the site to determine
the nature and extent of contamina-
tion are planned or underway.
Remedy Selected indicates that site
investigations have been concluded,
and the EPA has selected a final
cleanup remedy for the site or part
of the site.
Remedy Design means that engi-
neers are preparing specifications
and drawings for the selected
cleanup technologies.
Cleanup Ongoing indicates that the
selected cleanup remedies for the
contaminated site, or part of the site,
currently are underway.
Cleanup Complete shows that all
cleanup goals have been achieved
for the contaminated site or part of
the site.
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EPA ID
Number
NHD980524086
NHD064424153
NHD980520191
NHD001079649
NHD062002001
NHD092059112
NHD980503361
NHD001091453
NHD990717647
NH7570024847
NHD980671002
NHD980520225
NHD980671069
NHD099363541
NHD989090469
NHD062004569
NHD981063860
Site Name
AUBURN ROAD LANDFILL
COAKLEY LANDFILL
DOVER MUNICIPAL LANDFILL
FLETCHER'S PAINT WORKS & STORAGE
KEARSARGE METALLURGICAL CORP.
KEEFE ENVIRONMENTAL SERVICES
MOTTOLO PIG FARM
NEW HAMPSHIRE PLATING CO.
OTTATI & GOSS/KINGSTON STEEL DRUM
PEASE AIR FORCE BASE
SAVAGE MUNICIPAL WATER SUPPLY
SOMERSWORTH SANITARY LANDFILL
SOUTH MUNICIPAL WATER SUPPLY WELL
SYLVESTER
TIBBETTS ROAD
TINKHAM GARAGE
TOWN GARAGE/RADIO BEACON
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AUBURN ROAD /, / ERPAk RhEG'ON
/ X. / Rockingham County
LANDFILL / ^ ^ Londonderry
^f^imS' 1^1- y J 1 2 miles north of Route 28
NEW HAMPSHIRE A A/M on Auburn Road
EPA ID# NHD980524086
Site Description
The Auburn Road Landfill in Londonderry is a 200-acre site that consists of four separate
disposal areas: the former Londonderry Town Dump, which operated during the 1960s and was
the disposal site for over 1,000 drums of chemical waste; a tire disposal area, where tires and
demolition debris and several hundred drums of chemical waste were dumped; a solid waste
landfill, the largest disposal area, active until the entire site was closed in early 1980; and a
septage lagoon, which is next to a mound of overflow waste from the tire dump. Most of the
residents in the area depend on bedrock wells for their water supply. The State ordered the
landfill closed early in 1980 after hazardous wastes were identified in soil and toxic organics
were found in surface water and groundwater. In 1986, the EPA determined that contaminated
groundwater flowed off site toward the drinking water supply wells at the Whispering Pines
Mobile Home Park, and potentially to other private residential wells. The area surrounding the
landfill is residential and commercial, and the 300 homes and 270 mobile homes within a 1-mile
radius use groundwater as a prunary source of drinking water. Approximately 1,000 people live
within 3 miles of the site. Two unnamed streams drain from the site and flow into Cohas Brook,
which in turn empties into the Merrimack River.
Site Responsibility: The site is being addressed through Proved™*"12/30/82
Final Date: 09/08/83
Federal, local, and potentially
responsible parties' actions.
Threats and Contaminants
The groundwater is contaminated with volatile organic compounds (VOCs) and
inorganic chemicals. The soil also is contaminated with VOCs and inorganics, as well
as poly chlorinated biphenyls (PCBs) and pesticides. The fencing of the town dump,
the tire dump, and solid waste areas decreases the likelihood of exposure to
contaminated soils, although the areas adjacent to the fences are used for riding dirt
bikes and horses. Exposure to contaminated groundwater has been eliminated at the
present time because the municipal water supply was extended to local residents;
however, bedrock fractures may promote migration of contaminants into off-site
groundwater and present a potential threat to private wells outside the area. The site
includes large areas of wetlands, which are environmentally sensitive.
July 1995
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Cleanup Approach
The site is being addressed in four stages: initial actions and three long-term remedial phases
focusing on providing a water supply, cleaning up the groundwater contamination, and capping
the site.
Response Action Status
Initial Actions: The Federal Emergency Management Agency (FEMA) temporarily
relocated 17 families beginning in early 1986. At that time, the EPA excavated 1,666
drums in three locations and then restored two of the excavated areas. Drums were
consolidated, covered, and sampled prior to their disposal off site. A 24-hour security guard was
on duty prior to disposal. Between 1987 and 1988, the owner fenced the four disposal areas and
posted warning signs. In 1988, the EPA excavated an additional 360 drums from the tire dump.
Water Supply Line: In late 1987, the Town of Londonderry extended the current
water service provided by the Manchester Water Works to 17 homes along Auburn
Road and to 260 mobile homes in the Whispering Pines mobile home village. Nine
thousand linear feet of water line were installed. Londonderry constructed and paid for the water
supply line under an agreement with the EPA.
Groundwater: In 1989, the EPA selected cleanup technologies that specified the
collection of contaminated groundwater through a series of overburden and bedrock
wells and the use of groundwater collection trenches. Inorganic contamination will be
removed using chemical precipitation. Groundwater will then be treated to remove organic
contaminants using a combination of air stripping and, if necessary, carbon treatment. An
engineering study conducted in 1994 concluded that VOCs in groundwater no longer exceed
established cleanup levels. High levels of arsenic, however, still exist. EPA is currently
evaluating methods of addressing the arsenic contamination.
Capping: The EPA specified that a multi-layer cap be placed over the solid waste
area, the town dump area, and the tire dump area to prevent the further spread of
contaminants into the groundwater. The Town of Londonderry has completed
construction of the multi-layered caps over the town dump, fire dump, and solid waste area. In
addition, preliminary site grading has been completed for replicating approximately 7 acres of
wetlands disturbed during cap construction. Planting of wetland vegetation and other cleanup
activities are expected to be completed in 1996.
July 1995 2 AUBURN ROAD LANDFILL
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Environmental Progress
The EPA, FEMA, and the Town of Londonderry have acted to protect area residents from site
contamination by relocating affected populations, erecting a fence to restrict site access, providing
a safe water supply, and removing a large number of drums containing contaminants. The
capping will prevent any further spread of contamination as the groundwater is treated at the
Auburn Road Landfill site.
Site Repository
Leach Library, 276 Mammoth Road, Londonderry, NH 03053
AUBURN ROAD LANDFILL
July 1995
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COAKLEY LANDFILL /~1 EPA REGION
/^N. > Rockingham County
NEW HAMPSHIRE / 2 X Greenland and North Hampton
EPA ID# NHD064424153
Site Description
The privately owned Coakley Landfill site is a 92-acre parcel of land that was operated by
several municipalities. The landfill area encompasses 27 acres in the southern portion of the site.
The site accepted municipal and industrial wastes from the Portsmouth area between 1972 and
1982 and incinerator residue from the incineration recovery plant for the Refuse to Energy
Project between 1982 and 1985. The primary source of contamination is the landfill itself.
Volatile organic compounds (VOCs) and metals are the predominant contaminants found. On- and
off-site surface water and groundwater are contaminated. The site is located on a
groundwater/surface water divide, and residential wells to the south, southeast, and northeast of
the landfill are contaminated with low levels of VOCs. Public water service has been extended to
the areas with contaminated wells by local communities. There are several small commercial
facilities, motels, and restaurants nearby.
Site Responsibility: The site is being addressed through "1PL US™G .
f * ^ Proposed Date: 10/15/84
Federal, State and potentially
responsible parties' actions.
Final Date: 06/10/86
Threats and Contaminants
On-site groundwater is contaminated with arsenic, phenol, and methyl ethyl ketones;
off-site groundwater is contaminated with heavy metals including arsenic, chromium,
and lead, and VOCs including benzene and methyl ethyl ketones. On-site soil
sediments are contaminated with arsenic and lead. Stream sediments contain
contamination from arsenic and VOCs. Leachate contamination at the site includes
VOCs, tetrahydrofuran, and ketones. Metals and VOCs were detected in nearby
wetlands. Potential use of groundwater as a water supply is the main threat to human
health.
July 1995
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Cleanup Approach
The site is being addressed in three stages: initial actions and two long-term remedial phases
focusing on source control and cleanup of off-site groundwater.
Response Action Status
Initial Actions: In 1989, North Hampton extended a municipal water line to
residents who had been supplied by 13 private wells contaminated with VOCs. The
State set up a residential well monitoring system with an early warning system to
detect any groundwater contamination in the area. Most area residents now have access to
municipal water or uncontaminated groundwater.
Source Control: The State conducted an investigation from 1986 to 1987. The
goals of the field work were to characterize the hydrogeologic conditions at the site,
including an estimate of the total area of the landfill and soil deposits, details of the
hydraulic properties of bedrock and selected surface streams, and the identity of pathways for
contaminant migration from the site. The State completed the study in 1990. Based on the results
of the study, a cleanup remedy was selected which includes consolidating approximately 2,000
cubic yards of wetland sediments; consolidating approximately 30,000 cubic yards of on-site solid
waste; fencing and capping the landfill; collecting and treating landfill gases by thermal
destruction; extracting groundwater and treating it with a combination of chemical, biological,
and physical processes; and establishing long-term monitoring and institutional controls. Design
of the remedy began in the summer of 1992, and is scheduled for completion in 1995.
Off-site Groundwater: The EPA began a study in 1990 of the migration of
contaminants into off-site groundwater and the ecological effects of the site
contamination on adjacent wetlands. In the fall of 1994, a groundwater remedy was
selected which includes imposing institutional controls to prevent the use of contaminated
groundwater, allowing the groundwater to clean itself through natural attenuation, and long-term
monitoring. Final cleanup actions are expected to begin in the fall of 1995.
Site Facts: The State issued a Consent Order in 1983 requiring the owner to accept only
incinerator ash from the Refuse to Energy Project. As of February 1990, notices had been sent to
60 parties potentially responsible for the site contamination.
Environmental Progress
The provision of an alternate drinking water source has reduced the potential for exposure to
contamination, making the Coakley Landfill safer while further cleanup activity is being planned.
July 1995 2 COAKLEY LANDFILL
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Site Repository
North Hampton Public Library, 235 Atlantic Avenue, North Hampton, NH 03862
COAKLEY LANDFILL
July 1995
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DOVER MUNICIPAL
LANDFILL
NEW HAMPSHIRE
EPA ID# NHD980520191
EPA REGION 1
Stratford County
In Mallego Plains section of Dover
Site Description
The Dover Municipal Landfill is a 55-acre inactive landfill located on Tolend Road in the
Mallego Plains section, in the western corner of Dover. Owned and operated by the City since
1960, the landfill initially accepted domestic refuse from Dover, but by the 1960s, it took in
drums and loose trash from both Dover and Madbury. Buried materials include leather-tanning
wastes, organic solvents, municipal trash, and sludge from the Dover wastewater plant. It is
believed that drums were no longer accepted after 1975. In 1977, the State installed monitoring
wells around the area and found that organic solvents were entering groundwater, posing a
potential threat to public water supplies for Dover and Portsmouth. The State and the Dover City
Council ordered the landfill closed in 1980. The site is in a residential area; the nearest home is
100 yards to the southeast. A nursing home is located 2,500 feet away, and a prison and work
farm are located nearby. There are 50 homes within 1 mile of the landfill, and the surrounding
area is used for hunting and berry picking. Two water supplies are at risk, but they are currently
not contaminated. The Calderwood municipal well, 1/2 mile north, supplies 20 percent of
Dover's water; Bellamy Reservoir, 1/3 mile south, supplies Portsmouth, Newington, New Castle,
Greenland, and portions of Rye, Madbury, and Durham. Leachate from the landfill is entering
the Cocheco River, 400 feet away from the site at the closest point.
Site Responsibility:
The site is being addressed through of
Federal, State, local, and potentially
responsible parties' actions.
NPL LISTING HISTORY
Proposed Date: 12/30/82
Final Date: 09/08/83
July 1995
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Threats and Contaminants
Air is polluted with volatile organic compounds (VOCs), which have been detected
above background levels near on-site leachate streams. The groundwater is
contaminated with VOCs, acid and base/neutral extractable organic compounds, and
heavy metals. Two residential wells have been contaminated with organics from the
site; however, water is not currently being consumed from them. Sediments are
contaminated with heavy metals including arsenic, chromium, and lead. Off-site soil
contamination includes poly aromatic hydrocarbons (PAHs). On- and off-site soil
contains heavy metals including arsenic, chromium, and lead. The Cocheco River
receives leachate; VOCs have also been detected in the surface water. People on or
near the site could be exposed to contaminants that have evaporated into the air.
People using the site for recreational purposes could come in direct contact with,
accidentally ingest, or inhale contaminated dust. Drinking contaminated groundwater
and swimming or wading in the contaminated drainage ditch emptying into the
Cocheco River also could expose people to harmful chemicals. Nearby wetlands are
potentially threatened by site contamination.
Cleanup Approach
The site is being addressed in two stages: initial actions and long-term remedial phase aimed at
cleanup of contamination at the entire site.
Response Action Status
Initial Actions: A water line was installed in 1981, after contamination was found
in a few private wells, to connect those residents on Tolend Road to a separate water
source.
Entire Site: In 1984, the State began a study of the site to assess the nature and
extent of contamination. The parties potentially responsible for the site contamination
assumed responsibility for the study in 1988. The EPA selected final cleanup
remedies for the site in 1991. Remedies include recontouring and capping the landfill, treating
leachate, extracting and treating the southern plume of contaminated groundwater, and allowing
the eastern plume of groundwater to clean itself through natural attenuation. Design activities
began in mid-1992 and are scheduled for completion in the summer of 1996.
Site Facts: The State and City Council ordered the landfill closed in 1980. The EPA and the
potentially responsible parties entered into an Administrative Agreement in which the parties
agreed to complete a feasibility study of site cleanup strategies and perform an additional
investigation in the southern plume of groundwater contamination. The potentially responsible
parties also signed into a Consent Decree in 1992 to perform the remedy associated with the
landfill itself and control leachate migration from the landfill.
July 1995 2 DOVER MUNICIPAL LANDFILL
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Environmental Progress
By installing a water line to residences with contaminated water supplies, the EPA has made the
Dover Municipal Landfill site safer while final remedies are being designed.
Site Repository
Dover Public Library, Carnegie Building, 73 Locust Street, Dover, NH, 03820
DOVER MUNICIPAL LANDFILL
July 1995
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FLETCHER'S PA
WORKS & STO
NEW HAMPSHIRE
EPA ID# NHD001079649
EPA REGION 1
Hillsborough County
21 Elm Street in Milford
Other Names:
Fletcher Paint on Elm Street
Fletcher Storage Facility
on Mill Street
Site Description
This 2-acre site consists of two neighboring lots owned by Fletcher's Paint Works: a
manufacturing plant/retail outlet on Elm Street and a storage area 700 feet south on Mill Street.
Fletcher's Paint Works has manufactured and sold paints and stains for residential use at its plant
from 1949 until 1991. Bulk paint pigments were stored at the warehouse shed. The owner stored
several hundred drums behind the plant, and naphtha and mineral spirits were stored in unlined
underground tanks. Contaminants from the storage facility were found in a drainage ditch on the
adjoining Hampshire Paper Co. property; this ditch was made a part of the site. The State
inspected the facility in 1982 in response to a complaint and found 800 drums of alkyd resins and
21 drums of solvent. Leaking and open drums, as well as stained soil, were observed. An EPA
investigation of the site was prompted by discovery of contamination of the adjacent Keyes
municipal water supply well. Drums were removed from the Elm Street facility, and a synthetic
liner and clean fill have been placed over the high levels of polychlorinated biphenyls (PCBs) at
the Mill Street and Elm Street locations. A fence has been erected around the Elm Street
property. The storage shed and its contents were properly disposed of during the summer of
1993, due to deteriorating conditions and concern of local citizens. The site is situated in a
densely populated residential and commercial area, located approximately 1A mile from the
downtown area. Approximately 11,400 people within 3 miles obtain drinking water from public
and private wells. There are three schools within !/2 mile of the site. The site is adjacent to and
upgradient from the Souhegan River, which is used for recreational activities.
Site Responsibility: This site is being addressed through
Federal actions.
NPL LISTING HISTORY
Proposed Date: 06/24/88
Final Date: 03/31/89
July 1995
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Threats and Contaminants
1/5)
Air contaminants consist of volatile organic compounds (VOCs). Bagged asbestos was
stored on the site and the drummed wastes were contaminated with VOCs,
base/neutral solids and liquids, and PCB liquids. Sediments from the Souhegan River,
upgradient and adjacent to the site, and surface waters contain VOCs, including
benzene and toluene; heavy metals, including nickel and lead; and PCBs. Soil
contamination consists of VOCs; heavy metals such as barium, lead, and nickel;
PCBs; and organic solvents. The plant is easily accessible and is adjacent to a road
leading to a popular recreation area. PCBs have been found in residential yards
adjacent to Mill Street. Fish from the river are being evaluated for bioaccumulation of
PCBs. People on or near the site could risk exposure to contaminants by accidentally
ingesting, coming into direct contact with, or inhaling chemicals in the air, water,
soil, or sediments.
Cleanup Approach
The site is being addressed in two stages: initial actions and a long-term remedial phase focusing
on soil and groundwater cleanup.
Response Action Status
Initial Actions: The EPA undertook an emergency removal effort at the site in
1988. Twelve bags of asbestos were contained and sent to an EPA-approved landfill.
Soil and air were sampled. Air monitoring was conducted regularly during the
cleanup activities. The EPA lined the surface of the PCB-contaminated lot with a synthetic liner,
covered it with 6 to 8 inches of gravel, and topped it with 1 Vi inches of stone dust. More than
860 drums of hazardous substances were consolidated, packed in new containers, and sent to an
EPA-approved landfill or treatment facility. In 1991, a large portion of the Elm Street facility
was secured by a fence, while inside the facility, containers of lab chemicals were retrieved. In
1993, the contents of the Elm Street building were inventoried, overpacked, and properly
disposed of, and the storage shed was demolished and disposed of. Clean fill was placed over
the Mill Street portion of the site, and it was seeded with grass. The majority of the wastes
disposed of consisted of heavy metal-ladened paint pigments. Other wastes disposed of included
PCB wastes, asbestos, resins, and solvents. By the spring of 1994, a total of approximately 100
wrangler boxes and 559 drums had been disposed of.
Soil and Groundwater: The EPA completed an intensive study of soil and
groundwater contamination at the site in mid-1994. A feasibility study is currently
underway to recommend cleanup strategies. The EPA expects to select a final remedy
in the fall of 1995.
July 1995 2 FLETCHER'S PAINT WORKS & STORAGE
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Environmental Progress
With the initial actions described above, the EPA has reduced the potential for accidental soil and
dust exposure at both Fletcher Paint Works & Storage locations. Upon completion of the soil and
groundwater cleanup, contamination levels will be reduced to meet estabished health and
ecological standards for the site, or contained to provide protection from accidental exposure.
Site Repository
Wadleigh Memorial Library, 49 Nashua Street, Milford, NH 03055
FLETCHER'S PAINT WORKS & STORAGE
July 1995
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KEARSARGE
METALLURGICAL
CORP.
NEW HAMPSHIRE
EPA ID# NHD062002001
EPA REGION 1
Carroll County
Conway
Site Description
Precision stainless castings were manufactured on this 9-acre site from 1964 until Kearsarge
Metallurgical Corporation went out of business in 1982. Of the 9 acres, Kearsarge owned 5; the
4 remaining acres have different ownership but are included within the site boundaries. The
wastes produced from the cast-making processes (casting, cleaning, finishing, and pickling)
initially were disposed of on site. During the 1970s and 1980s, some of these wastes were
drummed and stored on site. A large, 20-foot-high pile of approximately 9,000 cubic yards of
solid waste was located behind a foundry building and surrounded by a chain link fence. This
waste pile contained ceramic sand, scrap metal, rusted drums, and various other refuse from
foundry operations, and extended across the Kearsarge property line. The closest drinking water
wells supply water for the municipality and a residential area across the Pequawket Pond. The
two municipal wells are located approximately 3,000 feet north of the site and supply most of the
drinking water to the area. Pequawket Pond marks the southern boundary of the site and is used
for recreational purposes. Approximately 8,100 people live within 3 miles of the site, and 2,700
people within 3 miles of the site use groundwater in the area for drinking purposes.
Site Responsibility:
This site is being addressed through
Federal, State, and potentially
responsible parties' actions.
NPL LISTING HISTORY
Proposed Date: 09/08/83
Final Date: 09/21/84
July 1995
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Threats and Contaminants
The groundwater is contaminated with volatile organic compounds (VOCs) including
trichloroethane (TCA). Sediment samples taken from Pequawket Pond indicated the
presence of some heavy metals. The soils in the woodlands area east of the site and in
the drainage way area are contaminated with low levels of VOCs, primarily TCA.
Samples taken from Pequawket Pond indicate the presence of heavy metals including
chromium, copper, and nickel. VOCs were detected in off-site surface water,
primarily in the swampy area to the east of the site and the catch basins. There was
the potential for exposure to VOCs by inhalation and ingestion of the dusts and dirt
from the site. The potential exists for exposure to contaminants from the sediments
and surface water in the swamp and drainage area, and contaminated groundwater.
The town's drinking water supply is not contaminated; however, the possibility exists
that the site may contribute groundwater to the municipal wells during periods of low
recharge and high pumping rates. Residents could be exposed through direct contact
with the contaminated soils and surface water in the swamp areas east of the site.
Cleanup Approach
Response Action Status
Initial Actions: The site owner arranged for the removal of 300 drums from the
site. In addition, 23 monitoring and observation wells were installed. The wells
supplemented the eight monitoring wells previously installed by the State of New
Hampshire. Seventeen test pits were excavated and solid waste samples were collected from
drums. Three rounds of groundwater samples were also collected. Surface water and sediment
samples were collected from the Pequawket Pond. In 1991, six additional drums and two pails of
hazardous materials were removed from the site.
Waste Pile: Based on investigations by the State completed in 1990, the waste pile
was surrounded by a chain link fence to secure the area. As a pilot for the Superfund
Accelerated Cleanup Model (SACM) initiative, removal of the waste pile began in
the summer of 1992 and was completed in the fall of 1992. The cleanup action performed under
SACM resulted in the following: the excavation, transportation, and disposal of approximately
13,663 tons of waste pile material to a municipal solid waste landfill; the transportation and
disposal of the contents of the septic tank in fourteen 55-gallon drums to a hazardous waste
incinerator; and the excavation, transportation and disposal of approximately 12 cubic yards of
leach-field soils and the associated concrete septic tank at a hazardous waste landfill.
July 1995 2 KEARSARGE METALLURGICAL CORP.
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Remainder of the Site: Based on investigations performed by the State of New
Hampshire, the following remedies were selected: the removal of a septic tank and
contents to an off-site incinerator for thermal destruction; excavation of contaminated
leach-field soils; and excavation and off-site disposal of materials in the two waste piles. To
control migration of contaminated groundwater, groundwater will be extracted and treated in a
clarifier to remove heavy metals, air stripped to remove VOCs, and passed through a carbon
filter to adsorb the airborne contaminants. Construction of the groundwater pump and treat
facility began in the spring of 1993. By the fall of 1993, the facility was operational, pumping
approximately 42 gallons per minute. The groundwater cleanup is expected to take 15 years to
achieve the appropriate cleanup levels. All construction activities at the site are now complete.
Long-term monitoring of groundwater, soil, sediments, and surface water will be implemented to
ensure the effectiveness of the remedy.
Site Facts: The State of New Hampshire filed a Civil Action in the Superior Court of Carroll
County in 1983, asking for civil penalties for disposal of hazardous waste and ordering the owner
to conduct a hydrogeological study.
Environmental Progress
Removing the waste pile and septic tank has reduced the threat of exposure at the site, while the
groundwater pump and treat facility continues to operate. All construction activities have been
completed at the Kearsarge Metallurgical Corp. site.
Site Repository
Conway Public Library, Main Street, Conway, NH 03813
KEARSARGE METALLURGICAL CORP.
July 1995
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KEEFE fA EPA REGION
/X. / Rockingham County
ENVIRONMENTATVX
SERVICES v1 _AH otherKESames:
NEW HAMPSHIRE
EPA ID# NHD092059112
Site Description
The Keefe Environmental Services site, covering 7 acres in Rockingham County, was operated as
a chemical waste storage facility from 1978 until 1981, when the company filed for bankruptcy.
Waste storage containers that were present on site at that time included 4,100 drums, four
5,000-gallon and four 10,000-gallon aboveground storage tanks, and a 700,000-gallon
synthetically lined lagoon. Solvents, acids, caustics, heavy metals, paint sludges, waste oils, and
organic chemicals were disposed of at the site. Soil and groundwater on and off site have been
contaminated. The site is located in a State-protected watershed with wetland areas draining to the
Piscassic River. The site is located in a semi-rural area. There are approximately 12 houses, with
a population of 30 people, located along Exeter Road, south of the site. The groundwater aquifer
is used as a water supply for ten residences located nearby and is the major source of drinking
water for approximately 2,000 people within a 3-mile radius of the site. The Town of New
Market has a water supply intake on the Piscassic River, 7 miles downstream from the site.
o-* o -UT* TU- •* • u • AA A A. i, NpL. LISTING HISTORY
Site Responsibility: This site is being addressed through Proposed Date- 10/23/81
Federal and State actions. Final Date: 09/08/83
Threats and Contaminants
The groundwater at the site is contaminated with volatile organic compounds (VOCs)
including trichloroethane and benzene. Soils adjacent to the lagoon were contaminated
before cleanup was completed. Drinking contaminated water poses a threat to
workers or others at the site.
July 1995
-------
Cleanup Approach
Response Action Status
Initial Actions: In 1981, when the site operations ceased, the EPA declared an
emergency at the site after determining that the waste lagoon was about to overflow.
The EPA and the State initiated emergency actions that included drawing down the
lagoon to lessen the threat of a spill. In continuing emergency actions during 1983 and 1984, the
EPA and the State removed more than 4,000 drums, four 5,000-gallon aboveground tanks, and
four 10,000-gallon aboveground tanks of hazardous waste.
Lagoon: The actions for cleanup of the lagoon included removal of the contents of
the lagoon, lagoon liner, and the highly contaminated soil adjacent to the lagoon for
disposal at a regulated facility. These cleanup activities were completed in 1984.
Groundwater: The cleanup activities chosen by the EPA for the groundwater
include treatment by pumping the contaminated groundwater, filtering volatile
contaminants by exposing the groundwater to air, and containing the airborne
chemicals by carbon adsorption. Treated groundwater is discharged into a groundwater recharge
area adjacent to the wetland along the site border. The State completed the technical
specifications and design for the selected remedy. Construction of the groundwater treatment
facility began in 1990 and was completed in March 1993. Long-term operation and maintenance
of the groundwater treatment facility is being conducted by the State.
Site Facts: A Consent Agreement was entered into with 119 settling potentially responsible
parties in 1986. The EPA filed suit against the non-settling parties in 1989. A Unilateral
Administrative Order (UAO) was issued in 1990. In late 1991, the State took over the cleanup
of the site from the potentially responsible parties. A final Consent Decree, with approximately
150 settling potentially responsible parties, was entered in the court in December 1992 requiring
the parties to perform the selected cleanup actions.
Environmental Progress
Construction of all remedies has been completed at the Keefe Environmental Services site. All
direct contact threats from contaminated soil have been eliminated, and groundwater
contamination is being reduced as treatment continues.
Site Repository
Harvey-Mitchell Memorial Library, 52 Main Street, Epping, NH 03042
July 1995 2 KEEFE ENVIRONMENTAL SERVICES
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MOTTOLO PIG FARM f] ERPA, RhEG'ON 1
/^X. / Rockingham County
NEW HAMPSHIRE / > A, Off Blueberry Hill Road in Raymond
EPA ID# NHD980503361 jf » 2r] Other Names:
Raymond Hazardous Waste Site
Site Description
The 50-acre Mottolo Pig Farm site is an abandoned pig farm located in an undeveloped wooded
area. From 1975 to 1979, the owner of the property disposed of chemical manufacturing wastes
from two companies in a 1/4-acre fill area adjacent to the piggery buildings. During this 4-year
period, over 1,600 drums and pails of wastes, including organic compounds such as toluene,
xylene, and methyl ethyl ketone, were disposed of at the site. State studies showed that
ground water beneath the site was contaminated and that contaminants were seeping into a brook
that empties into the Exeter River. The Exeter River is a drinking water supply for the nearby
communities of Exeter, Hampton, and Stratham. An estimated 1,600 people depend on
groundwater within 3 miles of the site as a source of drinking water. There are approximately
200 single family residences located within 1 mile of the site, with the nearest residence located
approximately 150 yards from the source area. Residential areas border the site property on three
sides.
_.A „ ...... TU- •* • u • AA A*. u NPL LISTING HISTORY
Site Responsibility: This site is being addressed through proposed Date: 04/10/85
Federal actions.
Final Date: 07/22/87
Threats and Contaminants
Specific contaminants detected in groundwater include volatile organic compounds
(VOCs) and arsenic. Contaminated leachate from the site seeps into an adjacent
brook. A small area of on-site soil contains VOCs. The only potential threat to public
health is drinking contaminated groundwater.
July 1995
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Cleanup Approach
Response Action Status
Initial Actions: In 1980, under authority of the Clean Water Act, the EPA used
emergency funds to excavate and store drams on site. From 1981 to 1982, the EPA
removed drams and pails from the site along with 160 tons of contaminated soil,
preventing further contamination of the soil and groundwater. EPA actions also included limiting
site access, sampling and analyzing materials, strengthening berms, overpacking containers, and
removing and disposing of materials. The EPA excavated observation pits to determine if surface
water diversion was feasible.
Entire Site: Based on studies performed by the parties potentially responsible for
contamination at the site, the EPA selected groundwater, surface water, and soil
cleanup remedies. The selected remedies included installing a groundwater interceptor
trench; sealing the ground surface in both the former dram disposal area and the southern
boundary area with temporary caps; and installing and operating a vacuum extraction system to
remove air and vapor phase VOCs from the soil gas. The interceptor trench was installed in
1992. Groundwater will clean itself naturally after the sources of contamination are removed.
Additional measures included installing a security fence to limit access to contaminated areas,
continued monitoring of groundwater and surface water, and institutional controls, which will
restrict the use of contaminated groundwater and prevent disturbance of cleanup activities. The
fence was installed in the fall of 1992. Construction of the vacuum extraction system was
completed in 1993 and the system is scheduled to operate until late 1995.
Site Facts: In 1988, the EPA and the K.J. Quinn Company signed an Administrative Consent
Order, in which the company agreed to perform an investigation of the site under EPA
monitoring. K.J. Quinn is one of several parties potentially responsible for contamination
problems originating at the site.
Environmental Progress
Initial actions to limit access to the site and to remove contaminated drams and soil have reduced
all direct contact threats from contaminated soil while vacuum extraction is removing VOCs from
the soil at the Mottolo Pig Farm site.
Site Repository
Dudley-Tucker Library, 6 Epping Street, Raymond, NH 03077
July 1995 2 MOTTOLO PIG FARM
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NEW HAMPSHIRE /~1 EHP* RE^'ON 1
^«\ /* Hillsborough County
P| ATllVlf^ f"*O ' v—•—^ > Located on Wright Avenue in Merrimack
NEW HAMPSHIRE
EPA ID# NHD001091453
Site Description
From 1962 to 1985 the New Hampshire Plating Co. (NHPC), more than 13 acres hi size,
conducted electroplating operations. Four natural lagoons located on site were used for disposal
of wastes and waste waters resulting from the electroplating operations. These lagoons were
unlined and had no leachate detection or collection system. Because of the nature of operations on
site, NHPC declared itself a hazardous waste disposal facility under Subtitle C of the Resource
Conservation and Recovery Act (RCRA) hi 1980. In 1982, the EPA and the New Hampshire
Division of Environmental Services (NH DBS) cited NHPC as having violated several RCRA
requirements. A Notice of Violations and Order of Abatement were issued to NHPC by NH DES
as a result. In 1983, a suit was filed against NHPC and decided hi favor of NH DES. Operations
at NHPC ceased hi 1985 due to NHPC's financial inability to meet compliance standards and
continue hydrogeologic investigations at the site. In 1987, the lagoon system underwent
treatment, contaminated debris on site was removed, and the NHPC building was given a
superficial cleaning. In 1990, contaminated sludge and soil at the property were solidified by the
EPA. These cleanup activities were performed by a contractor hired by NH DES. Wells within 4
miles of the site are a drinking water source for an estimated 39,000 people; the closest of these
wells is within a mile of the site. Groundwater below the site is shallow, flowing eastward to the
Merrimack River and southward to Horseshoe Pond, both of which are within 1,000 feet of the
site.
_. _ ..... __ . . . , . ., . . . NPL LISTING HISTORY
Site Responsibility: This site is being addressed through
Federal and State actions.
Proposed Date: 07/29/91
Final Date: 10/14/92
Threats and Contaminants
Various volatile organic compounds (VOCs) were detected in the lagoon system
through on-site monitoring wells. On-site soil, sludge, debris, drums, and plating tank
liquids also were contaminated with VOCs and heavy metals. Exposure to site
contaminants could pose a health risk.
July 1995
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Cleanup Approach
The site is being addressed in two stages: initial actions and one long-term remedial phase
focusing on cleanup of contamination at the entire site.
Response Action Status
Immediate Actions: Cleanup activities that took place in 1987 included treatment
of the lagoon system with lime and a sodium hypochlorite solution; removal of
debris, drums, and plating tank liquids; and a superficial cleaning of the NHPC
building. From 1990 to 1991, the EPA removed, solidified, and consolidated sludges and soils
from the four lagoons. To secure and restrict access to the site, a fence was built. In 1994, the
building was decontaminated, demolished, and removed from the site. An underground storage
tank was also removed. Sampling under the former building was performed and a temporary cap
was installed to prevent possible spread of contaminated soils to any receptors.
Entire Site: In mid-1992, the EPA began an investigation into the nature and extent
of contamination at the site. Following the investigation, scheduled to be completed
in late 1995, final cleanup remedies will be recommended.
Environmental Progress
Immediate actions such as treating the lagoon system, installing a cap, demolishing a
contaminated building, removing contaminated debris, and fencing in the New Hampshire Plating
Co. site have reduced the risk posed to the safety and health of nearby residents and workers
while final cleanup remedies are being investigated.
Site Repository
Merrimack Public Library, 470 Daniel Webster Highway, Merrimack, NH 03054
July 1995 2 NEW HAMPSHIRE PLATING CO.
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OTTATI & GOSS/
KINGSTON
STEEL DRUM
NEW HAMPSHIRE
EPA ID# NHD990717647
Site Description
EPA REGION 1
Rockingham County
Kingston
Other Names:
Kingston Steel Drum/
GRT Lakes Container
The Ottati & Goss/Kingston Steel Drum site, situated on 35 acres, contains a 1-acre parcel in the
southwestern portion that was leased and known as the Ottati & Goss (O&G) site and a 6-acre
Great Lakes Container Corporation (GLCC) site consisting of a rectangular parcel bordered on
the east by Route 125. From the late 1950s through 1967, Conway Barrel & Drum Company
(CBD) owned the site and performed drum reconditioning operations on the parcel of land later
owned by the Great Lakes Container Corporation. The reconditioning operations included caustic
rinsing of drums and disposal of the rinse water in a dry well near South Brook. Kingston Steel
Drum, the operator of the facility from 1967, continued the same operations as GLCC through
1973. South Brook and Country Pond became polluted, so CBD established leaching pits in an
area removed from South Brook. The State's Water Supply and Pollution Control Commission
reported on-site runoff and seepage from the leaching pits draining into South Brook and
eventually into Country Pond, where fish kills occurred. Vegetation along South Brook died and
swimmers experienced skin irritation. In 1973, International Mineral & Chemical Corporation
(IMC), purchased the drum and reconditioning plant and operated it until 1976. In 1978, heavy
sludges from the wash tank and from drainings, as well as residues from incinerator operations,
were brought to the O&G site for processing. After O&G operations ceased in 1979, the New
Hampshire Bureau of Solid Waste Management ordered the owners and operators not to restart
operations and to remove approximately 4,400 drums that were at various stages of deterioration
and were spilling organic compounds onto the ground. Approximately 450 people live within a
1-mile radius of the site. Most of these residents rely on bedrock wells for their water supply. An
estimated 4,500 people live within 3 miles of the site. A marshy area lies downgradient of the
site. The Powwow River and Country Pond, located nearby, are used for swimming and fishing.
Site Responsibility:
This site is being addressed through
Federal, State, and potentially
responsible parties' actions.
NPL LISTING HISTORY
Proposed Date: 10/23/81
Final Date: 09/08/83
July 1995
-------
Threats and Contaminants
The groundwater, surface water, and soils are contaminated with volatile organic
compounds (VOCs). The on-site soil also contains polychlorinated biphenyls (PCBs),
metals, and acid and base/neutral compounds. Sampling conducted in 1989 indicated
no current public threat was likely at the site; however, there is a potential for future
threats due to contaminated groundwater off site. The overburden and bedrock
aquifers are contaminated, but residential water supply wells show no contamination.
Some PCBs have migrated into South Brook; however, no PCBs have been detected in
Country Pond water. The adjacent marshlands are considered to be an environmentally
sensitive area and are partially contaminated with PCBs.
Cleanup Approach
The site is being addressed in five stages: initial actions and four long-term remedial phases
concentrating on soil excavation at the Ottati & Goss area, groundwater cleanup at two separate
areas, and soil cleanup at the Kingston Steel area.
Response Action Status
Initial Actions: Beginning in 1980, several actions were taken: the site was secured
by fencing; leaking drums were packed and removed; and contaminated soils and
debris were removed. In total, approximately 12,800 tons of soil, drums, and metals
were removed, plus 101,700 tons of flammable sludge, 6,000 cubic yards of flammable liquid,
and other materials.
Ottati & Goss Soil Excavation: Based on the results of the site investigation
conducted by the EPA, the selected remedy was to excavate and treat the
contaminated soil on the O&G portion of the site. The parties potentially responsible
for the site contamination excavated approximately 4,700 cubic yards of contaminated soil and
sediments, which were treated by low temperature thermal aeration. The cleanup action was
completed in 1989.
Kingston Steel Groundwater Treatment: Extraction and treatment of
contaminated groundwater, with eventual discharge of treated groundwater, is
planned for the cleanup of the Kingston Steel area groundwater and the adjacent
marshlands. One of the potentially responsible parties is designing the groundwater extraction and
treatment system under EPA supervision. Design of this system is expected to be completed in
1995, with cleanup work to begin shortly thereafter.
Ottati & Goss Groundwater Remediation: Based on the results of the site
investigation, the EPA has selected extraction and treatment of contaminated O&G
groundwater with the eventual discharge of treated groundwater on the site. Design
of the cleanup remedy is expected to be completed by the EPA in 1995.
July 1995 2 OTTATI & GOSS/ KINGSTON STEEL DRUM
-------
Kingston Steel Soil Remediation: The EPA-selected remedy at the Kingston Steel
area and the remainder of the site is similar to the soil excavations and cleanups
previously performed at the site, in addition to cleanup of adjacent stream sediment.
In 1993, the EPA completed the demolition of the 20,000 square foot building. Sixteen
underground storage tanks were simultaneously removed from below and adjacent to the building.
Building materials were recycled or disposed of off site. Incineration alternatives are currently
being reviewed for the treatment of the PCB-contaminated soil. Further cleanup actions are
scheduled to begin in early 1996.
Site Facts: The Justice Department, on behalf of the EPA, brought a civil action suit against
several potentially responsible parties in 1980. The court found the defendants liable for
contamination on and off site. The EPA settled with a group of potentially responsible parties
during the trial and this group, under a Consent Decree, has completed the soil remedy on the
O&G portion of the site. An additional Consent Decree was entered in the court in December
1993 with the remaining potentially responsible parties, which compensates the EPA for
completing the remainder of site cleanup.
Environmental Progress
Although some direct contact threats remain, the EPA has determined that the removal of
contaminated soils and sediments has reduced the potential for exposure to contamination at the
Ottati & Goss/Kingston Steel Drum site. These completed actions and other site cleanup activities
will continue to reduce site contamination levels, making the site safer as it approaches final
cleanup.
Site Repository
Kingston Public Library, Main Street, Kingston, NH 03848
OTTATI & GOSS/ KINGSTON STEEL DRUM
July 1995
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EPA ID# NH7570024847
Site Description
PEASE AIR FORC
O A O C / — "~r;3> I Portsmouth, Newington, and Greenland
NEW HAMPSHIRE
The Pease Air Force Base (AFB) site maintained aircraft from the 1950s on a 4,365-acre parcel
of land until 1991 when the base was closed. In support of its missions, Pease AFB generated
various quantities of fuels, oils, lubricants, solvents and protective coatings. Some of these
materials contaminated site soils, groundwater, surface water, and sediments. The Department of
Defense's Installation Restoration Program (IRP) is responsible for identifying the locations of
releases from past disposal sites and minimizing associated hazards to human health and the
environment. Most of the 43 identified areas of contamination have had preliminary
investigations performed. In addition to these studies, the Air Force has implemented 10 early
cleanup actions to reduce the risks to human health and the environment from known contaminant
sources. Three pilot groundwater extraction and treatment plants have been installed to recover
and treat contaminated groundwater. In addition, soil removal actions have been completed at
three locations and three drum removal actions were accomplished.
™ ....... , a. . NPL LISTING HISTORY
Site Responsibility: This site is being addressed through
Federal actions.
Threats and Contaminants
Proposed Date: 07/14/89
Final Date: 02/21/90
The groundwater is contaminated with volatile organic compounds (VOCs), including
trichloroethylene (TCE). Sediments from various drainage ditches are contaminated
with fuel oils and heavy metals including lead and zinc. The soil is contaminated with
organic solvents, fuel, and fuel oils. People and animals may be threatened by
accidently ingesting contaminated groundwater, soil, and sediment.
Cleanup Approach
This site is being addressed in eight stages: initial actions and seven long-term remedial phases
focusing on cleanup of the landfill; fire training area; Building 222; Buildings 113 and 119;
Zone 4; Zone 5; and the remaining locations categorized by zones.
July 1995
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Response Action Status
Initial Actions: Since beginning site studies, the Air Force has removed drums
from the Landfill 5 area, removed contaminated soil, and installed three pilot
groundwater extraction and treatment plants to begin reducing levels of
contamination. Similar soil removals and treatment systems are reducing contamination at
Buildings 113, 119, 222 and the Fire Training Area.
Landfill 5: A study of Landfill 5 was completed and a remedy was selected in the
fall of 1993. The remedy calls for consolidation of buried landfill debris saturated by
groundwater to dry areas of the landfill, followed by the construction of an
impermeable cap over the landfill area. Construction plans were completed in the fall of 1994.
Final cleanup activities are underway and scheduled for completion in 1996.
Fire Training Area: The Air Force completed investigations at the fire training area
in the fall of 1994. The remedy selected for the fire training area includes soil vapor
extraction and pumping and treatment of groundwater. Design of the cleanup remedy
has begun and is scheduled for completion in 1995.
Building 222: A study of the contamination at Building 222 was completed and a
cleanup remedy was chosen in the fall of 1993. Cleanup activities include the
removal of petroleum- and solvent-contaminated soils for off-site treatment and
disposal at a licensed facility. Cleanup began in the fall of 1994 and is scheduled for completion
in late 1996.
Buildings 113, 119: The Air Force is finalizing its study of possible cleanup
options for Buildings 113 and 119, and is scheduled to solicit public recommendations
and comments on the proposed cleanup actions in 1995.
Zone 4: In 1995, the Air Force completed investigations of Zone 4 and selected a
cleanup remedy. The remedy includes excavating soils from Landfill 6 and
consolidating the material into landfills prior to capping Landfill 5; restoring the area
to wetlands; allowing the groundwater to clean itself through natural processes once the landfill 6
soils, the source of groundwater contamination, are removed; placing deed restrictions on
groundwater use; and providing long-term monitoring of groundwater, surface water, and
sediments. Design of the remedy is scheduled for completion in early 1996 at which time cleanup
activities will begin.
Zone 5: The Air Force completed studies of Zone 5 in the fall of 1994 and
determined that no further actions were necessary to cleanup the area.
Remaining Areas: The Air Force is finalizing its studies of the remaining areas of
the site, categorized by zones, and is scheduled to select cleanup remedies in 1995.
July 1995 2 PEASE AIR FORCE BASE
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Site Facts: The EPA issued a Special Notice Letter to the Air Force in 1989 to initiate an
Interagency Agreement (IAG) negotiation among the EPA, the Air Force, and the State of New
Hampshire. In 1990, the Air Force signed an IAG with the EPA and the State outlining cleanup
responsibilities at the site. The Pease Air Force Base is participating in the Installation
Restoration Program, a specially funded program by the DOD. The Pease Air Force Base closed
in early 1991 and is now in the process of being transferred by the Air Force to the State. The
Air Force will continue its program to clean up the entire base.
Environmental Progress
Air Force early cleanup actions, such as drum removal, soil removal, and groundwater treatment,
have improved environmental conditions at the site, while final cleanup activities are underway
and being planned.
Site Repository
Portsmouth Public Library, 8 Islington Street, Portsmouth, NH 03801
PEASE AIR FORCE BASE
July 1995
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SAVAGE MUNICIPAL
WATER SUPPL
NEW HAMPSHIRE
EPA ID# NHD980671002
EPA REGION 1
Hillsborough County
2 miles west of Milford
Other Names:
Milford Well and Trailer Park
Site Description
The Savage Municipal Water Supply site covers approximately 235 acres west of the center of
Milford and consists of a municipal well and the underlying aquifer. The Savage Well operated
from 1960 to 1983, during which it supplied about 45 percent of Milford's drinking water,
averaging about 200,000 gallons per day. The remainder of the Town's water supply was
provided by the Keyes and Kokko Wells. Land uses found within the site area include
residential, agricultural, heavy and light industry, commercial enterprises, and aquaculture.
Contamination was discovered at the site as a result of a State-wide drinking water sampling
program in 1983. The Savage Well and a nearby contaminated well supplying a trailer park
were later closed. At that time, the State began investigations to locate the source of
contaminants that were also present in the wastes of nearby industries. Industry and fish
hatcheries also withdraw water from the aquifer. A stream that receives discharge from
Hitchiner Manufacturing and previously from Hendrix Wire and Cable flows through the site
prior to entering the Souhegan River. Hitchiner Manufacturing has purchased the Savage Well
from the Town of Milford.
Site Responsibility:
The site is being addressed through
Federal and potentially responsible
parties' actions
NPL LISTING HISTORY
Proposed Date: 09/08/83
Final Date: 09/21/84
Threats and Contaminants
The groundwater is contaminated with volatile organic compounds (VOCs) including
tetrachloroethylene (PCE), trichloroethylene (TCE), 111 trichloroethane, and vinyl
chloride; and heavy metals including lead, chromium, and nickel. The soil is
contaminated with VOCs. The stream on site is contaminated with VOCs and lead.
Trespassers who come into direct contact with or accidentally ingest contaminated soil
or groundwater are potentially at risk.
July 1995
-------
Cleanup Approach
The site is being addressed in two stages: immediate actions and a long-term remedial phase
focusing on cleanup of the entire site
Response Action Status
Immediate Actions: In 1983, the EPA provided bottled water to the 75 residents
of the Milford Mobile Home Park affected by contaminated well water, and
subsequently connected the park to the municipal water supply
Entire Site: The parties potentially responsible for the site contamination conducted
an investigation into the nature and extent of the contamination at the site. The
cleanup remedy was selected in 1991 and entails the construction and installation of a
pump and treatment facility for groundwater. Treated water will be discharged on site into the
Souhegan River and its tributaries. The design of the facility began in mid-1994 and is scheduled
for completion in late 1995.
Site Facts: In 1987, the EPA and the parties potentially responsible for the contamination of the
site signed a Consent Order in which the parties agreed to conduct an investigation at the site.
Two Consent Decrees were entered in the U.S. District Court of New Hampshire in 1994. The
first, entered in June, requires the settling potentially responsible parties to clean up the
groundwater. The second, entered in December, is for financial assistance from the potentially
responsible parties.
Environmental Progress
Connecting residents to the municipal water supply has reduced the potential for exposure to
hazardous materials at the Savage Municipal Water supply site while design of the groundwater
pump and treatment facility is underway.
Site Repository
Wadleigh Memorial Library, 21 Nashua Street, Milford, NH 03055
July 1995 2 SAVAGE MUNICIPAL WATER SUPPLY
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SOMERSWORT
SANITARY LAN
NEW HAMPSHIRE
EPA ID# NHD980520225
Site Description
EPA REGION 1
Stratford County
1 mile southwest of Somersworth
The Somersworth Sanitary Landfill is located on 26 acres of land approximately 1 mile southwest
of downtown Somersworth. The City operated a disposal site on the property from the mid-1930s
until 1981. Originally, the City burned residential, commercial, and industrial wastes at the site.
In 1958, the dump was converted to a landfill. Unknown quantities of sludges, solvents, acids,
dyes, metals, laboratory or pharmaceutical wastes, and potash were disposed of at this site. In
1981, four groundwater monitoring wells installed as part of site closure plan activities indicated
that volatile organic compounds (VOCs) and inorganic contaminants were present. The landfill is
located in a predominantly residential area of Somersworth. Forest Glade Park, which was
reclaimed as a recreational park in 1978, sits atop the easternmost 10 acres of the site. An
apartment building for senior citizens, a fire station, and a National Guard Armory abut the
property to the east, and an elementary school is located approximately 2,300 feet northeast.
Approximately 11,000 people live in Somersworth. The former Somersworth Municipal Supply
Well #3 was located approximately 2,300 feet from the landfill. This well was closed and
dismantled because of historically high levels of iron and manganese. Previously, the well
supplied approximately 10 percent of the City's total water supply and was used during peak
periods. Most of the residences in the area obtain drinking water from the Somersworth
municipal supply system; however, there are at least seven private wells in the area. Peter's
Marsh Brook, located adjacent to the western edge of the landfill, is a tributary of Tate's Brook,
which, in turn, is a tributary of the Salmon Falls River. Both the City of Somersworth and the
City of Berwick, Maine, withdraw water from the river for their drinking water supplies. Water
intakes are located approximately 1V4 miles from the landfill.
Site Responsibility:
The site is being addressed Ihrough
Federal, State, and potentially
responsible parties' actions.
NPL LISTING HISTORY
Proposed Date: 12/30/82
Final Date: 09/08/83
July 1995
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Threats and Contaminants
The groundwater is contaminated with VOCs. Sediments were found to contain low
levels of arsenic, chromium, and lead. The on-site soil is contaminated with VOCs,
poly cyclic aromatic hydrocarbons (PAHs), and heavy metals. Peter's Marsh Brook
and Tate's Brook have been shown to contain VOCs and heavy metals including
arsenic and mercury unrelated to the landfill. Peter's Marsh Brook is considered to be
the primary receptor of groundwater contamination. If private water supply wells were
installed or reopened in this area or near Peter's Marsh Brook, long-term exposure to
contaminated drinking water would pose health risks. There is a short fence restricting
access to the landfill from the park.
Cleanup Approach
This site is being addressed in a long-term remedial phase focusing on cleanup of the entire site.
Response Action Status
Entire Site: The parties potentially responsible for the site contamination conducted
an investigation into the nature and extent of contamination at the site. In the summer
of 1994, remedies were selected to clean up the groundwater, which include using an
innovative chemical treatment wall which will destroy the VOCs as the groundwater flows
through treatment cells in the wall, with a cap after cleanup. If this remedy is not effective, the
contingent remedy is a standard pump and treat system.
Site Facts: The EPA entered into a Consent Agreement, requiring the parties potentially
responsible for contamination at the site to conduct a study of site contamination. The settling
parties also have agreed to pay past State and Federal costs for the site and future oversight
costs, as well.
Environmental Progress
Following listing of the Somersworth Sanitary Landfill site on the NPL, the EPA determined that
the site contamination does not pose an immediate threat to public health or the environment
while cleanup activities are being planned.
Site Repository
Somersworth Public Library, 27 Main Street, Somersworth, NH 03878
July 1995 2 SOMERSWORTH SANITARY LANDFILL
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SOUTH MUNICIPAL
WATER SUPPLY
NEW HAMPSHIRE
EPA ID# NHD980671069
Site Description
EPA REGION 1
Hillsborough County
Sharon Road, 2 miles south of
Peterborough
The South Municipal Water Supply Well site covers 250 acres in a rural portion of the
Contoocook River Valley. The well was installed in 1952 and provided water to the Town of
Peterborough for nearly 30 years. The well served approximately 4,600 people. In 1982, the
State conducted a routine sampling of the water supply and found contaminants in the South
Well, at which time it was shut down. The source of the contamination was thought to be the
New Hampshire Ball Bearings (NHBB) facility, located 1,200 feet west of the well, which has
manufactured precision ball bearings at the site since 1946. In 1955, the company purchased the
24 acres it now occupies. Major source areas include discharges from three drainage outfalls, an
inactive leachfield, and drainage from a tank truck used to haul waste from the facility. A brook
200 feet from the plant drains into a wetland area and Noone Pond before emptying into the
Contoocook River. Discharges to the leachfield and sump ceased in 1972 with the connection of
the town sewer line. Periodic on-site dumping of a 275-gallon tank truck containing waste
solvents ceased in the late 1970s. Floor drains in the plant were sealed in 1983. The population
of the Town of Peterborough is over 5,000. Less than 100 single-family residences are located
within a mile of NHBB, and the nearest private residence is located approximately 1,000 feet
from the facility.
Site Responsibility:
This site is being addressed through
Federal and potentially responsible
parties' actions.
NPL LISTING HISTORY
Proposed Date: 09/08/83
Final Date: 09/21/84
Threats and Contaminants
HAJ
The ground water, soils, and surface water are contaminated with volatile organic
compounds (VOCs) including chloroform, benzene, and toluene. Sediments also are
contaminated with VOCs and polychlorinated biphenyls (PCBs). People who
accidentally ingest or come in direct contact with contaminated ground water, surface
water, soil, or sediments may be at risk. Included within the site area is the
Contoocook River/ Noone Pond system and a wetlands area that could be at risk from
contamination.
July 1995
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Cleanup Approach
Response Action Status
Entire Site: The investigation to determine the nature and extent of contamination
and to identify alternatives for cleanup was completed by NHBB, and the final
cleanup decision was reached in 1989. The site cleanup methods selected by the EPA
include: construction of a groundwater pump and treatment system; vacuum extraction for small
areas of soils contaminated with VOCs; and excavation with off-site disposal of sediments
contaminated with PCBs. NHBB completed the design of the cleanup remedies under EPA
oversight in the spring of 1993. Construction of the groundwater pump and treat and vacuum
extraction systems has been completed, and operations began in early 1994. The sediments were
removed in the summer of 1994. Cleanup activities are scheduled for completion in 1995.
Site Facts: The EPA and NHBB signed a Consent Order in 1989, in which the company agreed
to conduct a study of the contamination at the site. The EPA issued a Unilateral Order to NHBB
in 1990 for the performance of the cleanup design and actions.
Environmental Progress
Construction of all site remedies is complete. Soil and sediments have been cleaned up and will
protect the nearby population at the South Municipal Water Supply Well site while groundwater
treatment is underway.
Site Repository
Peterborough Town Library, Maine and Concord Streets, Peterborough, NH 03458
July 1 995
SOUTH MUNICIPAL WATER SUPPLY WELL
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SYLVESTER
NEW HAMPSHIRE
EPA ID# NHD099363541
EPA REGION 1
Hillsborough County
Nashua
Other Names:
Gilson Road Site
Site Description
The 6-acre Sylvester hazardous waste dump site was used as a sand borrow pit for an
undetermined number of years. During the late 1960s, after much of the sand had been removed
from the property, the operator of the pit began an unapproved and illegal waste disposal
operation, apparently intending to fill the excavation. Household refuse, demolition materials,
chemical sludges, and hazardous liquid chemicals were dumped at the site. The household refuse
and demolition materials usually were buried, while the hazardous liquids were allowed to
percolate into the ground adjacent to the old sand pit or were stored in steel drums that were
placed on the ground. The illegal solid waste activity at the site was first discovered in late 1970.
The first indication that liquid hazardous wastes were being dumped occurred in 1978, when
State personnel observed drums being stored at the site. A court order was issued in 1979
prohibiting all further disposal of hazardous wastes on the site. The site is in a residential area,
with approximately 1,000 people living in an adjoining mobile home park, and there are five
private drinking water wells located within 1/4 mile of the site. The site is about 680 feet from
Lyle Reed Brook, which flows through the trailer park and enters the Nashua River, a source of
drinking water. The Merrimack River is 11 miles downstream and also is a source of drinking
water.
Site Responsibility:
The site is being addressed through
Federal, State, and potentially
responsible parties' actions.
NPL LISTING HISTORY
Proposed Date: 10/23/81
Final Date: 09/08/83
Threats and Contaminants
Approximately 900,000 gallons of hazardous wastes were discharged on site in 1979,
contaminating the soil and hundreds of thousands of gallons of ground water. The soil
and groundwater are contaminated with heavy metals and volatile organic compounds
(VOCs). Lyle Reed Brook also is contaminated with VOCs and metals. The main
health threat associated with the site is drinking or coming into direct contact with
contaminants in the groundwater and surface water. Groundwater currently is not
used, since all residents are connected to a separate municipal supply. Contaminants
may leach into the bedrock aquifer; however, capping the site has greatly reduced the
likelihood of continued contamination of the surface water.
July 1995
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Cleanup Approach
Response Action Status
Immediate Actions: In 1979, the State removed 1,000 drums from the site. In
early 1980, the EPA built a fence around the dumping area and removed 1,314
accessible surface drums. The movement of the groundwater contaminant plume was
monitored and an access road was built. Between 1981 and 1982, the EPA installed a
groundwater interception and recirculation system to temporarily pump and recirculate the
contaminated groundwater to prevent it from reaching Lyle Brook and from further contaminating
the aquifer.
Capping: The State built a slurry wall surrounding a 20-acre area and built an
impervious membrane cap to prevent any further migration of the contamination to
on-site groundwater.
Groundwater Treatment: A 300-gallon-per-minute groundwater treatment facility
was constructed to remove toxic substances in the groundwater. The treatment process
consists of a combination of physical, chemical, and biological treatments. The
process involves pumping the groundwater from within the slurry wall containment area and then
exposing it to air to remove contaminants. In addition, a vacuum extraction system was installed
to clean up the large amounts of toluene in the groundwater and soils in the southern portion of
the site. Finally, new extraction wells were installed and the recharge trenches were repaired.
Groundwater treatment and monitoring is expected to continue until 1997.
Site Facts: Several Consent Decrees were entered into by the EPA, the State, and numerous
potentially responsible parties to provide for reimbursement of past costs and the undertaking of
cleanup designs and actions.
Environmental Progress
Construction of all cleanup remedies at the site have been completed. Removing drams, fencing,
capping, and containing and treating the groundwater have reduced the risk of exposure to
hazardous materials at the Sylvester site. The threat of direct contact with contaminants in soil
has been eliminated. Groundwater cleanup actions at the Sylvester site have reduced
contamination levels, and additional treatment will continue until established cleanup goals are
met.
Site Repository
New Hampshire Department of Environmental Protection Office, 6 Hoyden Drive, Concord, NH
03301
July 1995 2 SYLVESTER
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TIBBETTS ROAD / Epf
s\ / Stratford County
NEW HAMPSHIRE ( ^ ) Barrin9ton
EPA ID# NHD989090469
Site Description
The Tibbetts Road site occupies approximately 2 acres. The site was used for storing drums
collected from 1944 to 1958. Many of the drums were leaking and rusted and contained thinners,
solvents, antifreeze, kerosene, motor and transmission oil, polychlorinated biphenyls (PCBs),
grease, and brake fluid. The EPA removed all the deteriorating drums in 1984. Approximately
2,100 people living within 3 miles of the site depend on groundwater for drinking water. The
New Hampshire Water Supply and Pollution Control Commission found drinking water wells
serving approximately 20 people to be contaminated. The site is situated in a residential area
upgradient from a lake used for recreational purposes and a drinking water supply.
_. _ ..... _ ... . .. ,, , , NpL LISTING HISTORY
Site Responsibility: The site is being addressed through
Federal and State actions.
Proposed Date: 04/10/85
Final Date: 06/10/86
Threats and Contaminants
The groundwater is contaminated with volatile organic compounds (VOCs) including
benzene, trichloroethylene (TCE), toluene, xylenes, and heavy metals including
arsenic, according to tests conducted by the New Hampshire Water Supply and
Pollution Control Commission. Soil is contaminated with solvents, PCBs, and dioxin.
People who accidentally ingest or come into direct contact with contaminated soil or
groundwater are potentially at risk.
Cleanup Approach
The site is being addressed in two stages: immediate actions and a long-term remedial phase
focusing on groundwater contamination.
July 1995
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Response Action Status
Immediate Actions: In 1984, the EPA removed approximately 337 deteriorated
and leaking drums stored within 50 yards of private residences and disposed of them
at an approved disposal site. Residents were temporarily relocated while the drums
were being removed. During the summer of 1985, the EPA and the State conducted an
investigation to determine whether any additional materials needed to be removed from the site.
Low levels of dioxin were detected in the soil and VOCs were found in the drinking water. The
EPA and the State began a joint soil removal effort. Between 1985 and the summer of 1988,
PCB- and dioxin-contaminated soil was removed and incinerated, and solvent-contaminated soil
was excavated and disposed of off site by the State. A water supply system, constructed to
provide drinking water to the 45 homes with contaminated wells or wells with the potential to
become contaminated, became operational in 1987. The water supply system was expanded in
1993.
Groundwater: Sampling conducted in 1990 and 1991 showed no current public
threat likely at the site; however, there is a potential threat for future off-site
contamination due to groundwater migrating off site. The bedrock aquifer is
contaminated; however, an alternate water supply system provides safe drinking water to those
residents with affected wells. The results of the investigation by the EPA was the selection of a
remedy that calls for pumping and treating contaminated groundwater. The design of the
groundwater remedy is underway and is scheduled for completion in 1996.
Site Facts: On November 8, 1994, the United States, the State of New Hampshire, and the
Swains Lake Village Fire District signed a Consent Decree with Ford Motor Company. Under
this Consent Decree, Ford will perform actions to reduce contamination at the site and clean up
the groundwater. Ford will also fund a new drinking water supply system to replace the
temporary system that EPA constructed.
Environmental Progress
The removal of the drums, treatment of contaminated soil, and the provision of a new water
supply at the Tibbett's Road site have reduced the potential for exposure to contamination. These
actions have helped to protect the public health and the environment while the groundwater
cleanup remedy is being designed.
Site Repository
Barrington Public Library, Star Route, Barrington, NH 03825
July 1995 2 TIBBETTS ROAD
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TINKHAM GARA
NEW HAMPSHIRE
EPA ID# NHD062004569
Site Description
EPA REGION 1
Rockingham County
Londonderry
The Tinkham Garage site covers about 375 acres in Londonderry. During 1978 and 1979, oil,
oily wastes, washings from septic tank trucks, and other substances were discharged at the site.
In 1978, residents complained of foam and odors in a small unnamed brook, which prompted an
investigation revealing that improper waste disposal had occurred. The State ordered the site
owner to prevent further degradation of surface water and ground water. In early 1983, wells of
the Londonderry Green Apartment complex and several other private supply wells were closed
due to contamination, and residents were provided with access to a municipal water supply. The
open and wooded land that comprises the majority of the site is bordered primarily by residential
properties. Approximately 400 people reside within a condominium complex on the western
boundary of the site. Additional residences include private, one-family homes within site
boundaries to the north.
Site Responsibility: The site is being addressed through
Federal, State, and potentially
responsible parties' actions.
NPL LISTING HISTORY
Proposed Date: 12/30/82
Final Date: 09/08/83
Threats and Contaminants
Volatile organic compounds (VOCs) were identified in the surface water and
groundwater on site and in areas adjacent to the site. The soils located in the field
behind Tinkham Garage and in some condominium complex leachfields also have been
shown to contain VOC contamination. A potential threat to residents may exist if the
contaminated groundwater were to be used as drinking a water source. The
contaminated area in the field behind the garage poses a threat if people accidentally
ingest or come in direct contact with the soil, surface water, or groundwater.
July 1995
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Cleanup Approach
The site is being addressed in two stages: initial actions and a long-term remedial phase focusing
on cleanup of the entire site.
Response Action Status
Initial Actions: The State issued a health order in early 1983, advising residents not
to drink well water. Bottled water was initially provided, and a municipal water
supply line was installed and operational by the fall of 1983.
Entire Site: In 1987, the EPA entered into an agreement with 23 of the parties
potentially responsible for the site contamination to conduct a study of the nature and
extent of site contamination. Four areas of contamination were identified as needing
attention: the soil in the garage area; the groundwater in the general area of the garage and the
condominium complex; two leachfields located in the condominium complex; and a soil pile that
contains soil removed during earlier excavations of leachfield soils. The remedies selected
include: on-site treatment of contaminated soils by vacuum extraction; backfilling, regrading and
revegetation of excavated source areas after contaminated soils have been excavated; extraction
and off-site treatment of contaminated groundwater at the Town of Derry's wastewater treatment
works, which will require off-site pretreatment; and groundwater monitoring on and off site.
Design activities have been completed and soil cleanup began in early 1994. The groundwater
cleanup began in late 1994, following the construction of a municipal sewer line between the site
and the Derry wastewater treatment plant.
Site Facts: The potentially responsible parties, under a Consent Decree, agreed to undertake the
design and cleanup activities at the site. This site is closely associated with the Sylvester's,
Plymouth Harbor, and Cannon Engineering NPL sites.
Environmental Progress
The provision of an alternate drinking water source has reduced the potential for exposure to
contamination at the Tinkham Garage site, and has protected the public health while cleanup
activities are being completed. Contaminated soil from the two leach fields and the soil pile have
been removed from the condominium area, eliminating the threat of ingestion or direct contact.
Site Repository
Leach Library, 276 Mammoth Road, Londonderry, NH 03053
July 1995
TINKHAM GARAGE
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TOWN GARAGE/ /\ / ERPAkRhEG!°N 1
/ ^N. / Rockingham County
RADIO BEACON / ~ I L°n<">nderrv
NEW HAMPSHIRE
EPA ID# NHD981063860 -~
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Cleanup Approach
Response Action Status
Initial Actions: In the late 1980s, six residences affected by well contamination
were hooked up to the local public water supply.
Groundwater: In 1992, the EPA completed an investigation into the groundwater
contamination at the site. The final cleanup remedy selected to address the
contamination in the shallow and bedrock groundwater is to allow groundwater to
clean itself through natural attenuation, along with institutional controls to prevent the use of
groundwater for domestic purposes. This cleanup process could take from seven to 25 years to
complete. The State will conduct long-term groundwater monitoring.
Environmental Progress
After adding this site to the NPL, the EPA assessed conditions and determined that, besides
connecting six residences with contaminated wells to the public water supply and preventing the
use of contaminated groundwater for domestic purposes, no further actions are required to make
the Town Garage/Radio Beacon site safe while natural attenuation of the groundwater occurs.
Site Repository
Leach Library, 276 Mammoth Road, Londonderry, NH 03055
July 1995
TOWN GARAGE/RADIO BEACON
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