| AFCEE believes that the preferred alternatives will be
protective of human health and the environment and will comply with environmental laws and
regulations (i.e., ARARs). The alternatives will provide both short-term and long-term
protection. The preferred alternatives can be easily implemented and will provide the
necessary protection at a reasonable cost. Site
Specific Evaluation of Alternatives
This section briefly summarizes site history, the reasons
cleanup is needed, and the rationale for AFCEE’s selection of the preferred
alternative for each AOC.
AOC FTA-2/LF-2
Description And History of AOC FTA-2/LF-2. This AOC,
located west of the southern end of Runway No. 5 (Figure 2), occupies
approximately 11 acres and includes a Firefighter-training area developed on top of a
buried municipal landfill. The following items summarize the history of AOC FTA-2/LF-2.
- 1940 to 1944. The landfill received domestic refuse
that was burned and buried.
- 1948 to 1956. Firefighter-training exercises were
conducted at FTA-2. Materials that may have been burned include waste oils, aviation
gasoline, jet fuel, and waste petroleum distillate solvents.
- 1988. A Site Investigation (SI) was performed to
assess the presence of contamination.
- 1989. An RI was performed to assess the nature and
distribution of contamination.
- 1993. A supplemental RI was performed to further
characterize contamination and evaluate potential site risks.
- 1997. A Feasibility Study was performed to evaluate
approaches to control potential site risks.
Why is Cleanup Needed at AOC FTA-2/LF-2?
Investigations at AOC FTA-2/LF-2 detected inorganic and fuel- and non-fuel-related organic
contaminants in the soil. Organic contaminants, such as fuel and pesticides, were also
identified in deep soil close to the groundwater table. The results of the risk assessment
for AOC FTA-2/LF-2 indicate that human health risks from exposure to soil do not exceed
federal and state risk management guidelines. The results of the ecological risk
assessment indicate potential risk; however, the risk may be overestimated suggesting that
the likelihood of adverse ecological effects is low. Several chemicals with the potential
to migrate to groundwater were identified above threshold concentrations.
 Groundwater beneath AOC FTA-2/LF-2 is contaminated with
inorganics and fuel-related organic compounds. Cleanup of this contamination is addressed
by SERGOU.
Evaluated Remedial Alternatives for AOC FTA-2/LF-2.
The Feasibility Study assessed how well the following three alternatives would meet the
evaluation criteria while controlling migration of contaminants from deep soils to
groundwater:
- No Action
- Limited Action
- Biosparging
Because of the depth of the contamination, the alternatives
that include excavation were considered impractical and were not evaluated in detail.
AFCEE’s Preferred Alternative for AOC FTA-2/LF-2.
AFCEE’s preferred alternative for this AOC is Biosparging with Ambient Air
Monitoring.
Preliminary sampling would be performed to confirm the
extent of the area needing cleanup, and treatment would continue until sampling data
indicated that cleanup criteria were met. Biosparging at AOC FTA-2/LF-2 does not include
collection and treatment of biosparging off-gas because potential emissions are estimated
to be well below Massachusetts thresholds and because potential exposure to off-gas
leading to adverse effects is not expected. Air sampling will be performed to confirm that
collection and treatment of off-gas is not necessary.
 This alternative includes institutional controls in the
form of site access restrictions to limit potential human exposure to site contaminants
and five-year site reviews.
AOC PFSA/FS-10/FS-11
Description And History of AOC PFSA/FS-10/FS-11. The
PFSA, located on the north side of South Outer Road (Figure 3), has
been the main fuel delivery and distribution area for the flightline since the early
1950s. The following items summarize the history of PFSA/FS-10/FS-11.
- Early 1950s to Present. The PFSA operated as the main
fuel delivery and distribution area for the flightline.
- 1960s. FS-10 and FS-11 occurred at the PFSA. FS-10
was a 2,000-gallon jet-fuel spill in one of the pumphouses. FS-11 was an approximate
2,000-gallon fuel spill from overfilling one of the tanks.
- 1985 and 1986. Field investigations assessed the
presence of soil and groundwater contamination at PFSA.
- 1989. An RI was performed to characterize the nature
and extent of sediment, deep soil, and groundwater contamination.
- 1993. The fuel distribution lines at the PFSA were
upgraded from a below-ground to an above-ground system. Approximately 11 cubic yards of
fuel-contaminated soil were excavated from around the below-ground fuel lines during
construction activities.
- 1994. A supplemental RI was performed to further
characterize groundwater contamination.
- 1994. Four 50,000-gallon underground storage tanks
were removed from the PFSA.
- June 1996. Heavy rain and a pump failure at the PFSA
caused 6,000 gallons of fuel-contaminated water to spill from a fuel pumphouse. Of the
6,000 gallons, about 300 gallons was diesel and/or jet fuel. Because of high stormwater
flows, some fuel discharged to SD-2 south of the PFSA. In response to the spill, 480 cubic
yards of fuel-contaminated soil were removed from the PFSA, and 120 cubic yards of
fuel-contaminated soil were excavated from the SD-2 drainage ditch as part of an Immediate
Response Action performed under the Massachusetts Contingency Plan. A soil vapor
extraction system has been installed as part of the Immediate Response Action to remove
additional contamination associated with the spill.
- 1997. A Feasibility Study was performed to evaluate
approaches to control potential site risks.
Why is Cleanup Needed at AOC PFSA/FS-10/FS-11?
Investigations at this area showed fuel-related contaminants in surface and subsurface
soils. Fuel-related contamination was also detected in shallow groundwater. The results of
the risk assessment for AOC PFSA/FS-10/FS-11 indicate that human health risks from
exposure to soil do not exceed federal and state risk management guidelines and that the
likelihood of adverse ecological effects is low. However, it was concluded that subsurface
soils were contributing to groundwater contamination. Groundwater beneath and downgradient
of this AOC will be addressed by SERGOU.
Evaluated Remedial Alternatives for AOC
PFSA/FS-10/FS-11. The Feasibility Study assessed how well the following three
alternatives would meet the evaluation criteria while controlling migration of
contaminants from deep soils to groundwater:
- No Action
- Limited Action
- Biosparging
Because of the depth of the contamination and the presence
of above-ground and shallow below-ground structures, the alternatives that included
excavation were considered impractical and were not evaluated in detail.
 AFCEE’s Preferred Alternative for AOC
PFSA/FS-10/FS-11. The preferred alternative for this AOC is Biosparging with Off-gas
Collection and Treatment. Preliminary sampling would be performed to confirm the extent of
the area needing cleanup, and treatment would continue until sampling data indicated that
cleanup criteria were met.
Biosparging at AOC PFSA/FS-10/FS-11 includes collection and
treatment of biosparging off-gas. The design of the biosparging system will consider
potential interactions between it, the extraction, treatment, reinjection (ETR) system
installed for the neighboring site (SD-5 North Groundwater Plume), and the soil vapor
extraction system installed for the 1996 spill.
The proximity of the ETR system to the proposed biosparging
system makes assessment of potential operational interactions necessary to achieve uniform
distribution of air during biosparging and avoid capture of biosparging air bubbles by the
ETR system. AFCEE is confident these interactions can be minimized through prudent design.
Few conflicts are expected between the biosparging system and the soil vapor extraction
system installed to treat the 1996 spill.
This alternative includes institutional controls in the
form of site access restrictions to limit potential human exposure to site contaminants
and five-year site reviews.
AOC SD-2/FS-6/FS-8
Description And History of AOC SD-2/FS-6/FS-8. SD-2
extends from the base boundary approximately 2,500 feet south to Ashumet Pond (Figure 4). SD-2 receives runoff water from the PFSA, an aircraft
maintenance ramp, and hangars. The following items summarize the history of AOC
SD-2/FS-6/FS-8.
- 1950s. SD-2 began receiving stormwater runoff from
the PFSA, aircraft maintenance ramp, hangar nosedocks, and other support buildings.
- Early 1960s. Two fuel spills (FS-6 and FS-8) occurred
on the aircraft maintenance ramp, resulting in the release of approximately 23,000 gallons
of fuel. Both FS-6 and FS-8 were reportedly washed into the storm sewer that discharges to
SD-2.
- 1968. An oil/water separator was constructed at SD-2,
south of South Outer Road.
- 1986. Additional field investigations evaluated
surface water and sediment.
- 1988. An SI was performed to assess the presence of
surface water, sediment, and groundwater contamination.
- 1989. An RI was performed to characterize the nature
and distribution of sediment and groundwater contamination.
- 1993. A supplemental RI was performed to further
characterize sediment contamination.
- 1996. As a result of heavy rains and a pump failure,
fuel-contaminated water was released from the PFSA into SD-2. (See PFSA/FS-10/FS-11 on
page 5 for additional discussion.)
- 1997. A Feasibility Study was performed to evaluate
approaches to control potential site risks.
Why is Cleanup Needed at AOC SD-2/FS-6/FS-8?
Investigations at this AOC detected fuel-related compounds, pesticides, polychlorinated
biphenyls (PCBs), and inorganic contaminants in surface soil and sediment. Samples of
deeper soil and the groundwater did not identify site-related contamination. The results
of the risk assessment indicate that human health risks from exposure to soil at average
site concentrations do not exceed federal and state risk management guidelines; however,
maximum site concentrations, found primarily at two specific sample locations along the
drainage ditch, produced potential risks within the USEPA target risk range and greater
than the MADEP target value. Furthermore, chemical concentrations at these two locations
showed potential to cause adverse ecological effects. Excavation of soil and sediment at
AOC SD-2/FS-6/FS-8 will remove them as potential sources of contamination to Ashumet Pond.
SERGOU addresses non-site-related groundwater contamination
beneath this AOC.
 Evaluated Remedial Alternatives for AOC SD-2/FS-6/FS-8.
The Feasibility Study assessed how well the following three alternatives would meet the
evaluation criteria while controlling potential adverse human health and ecological
effects from exposure to surface soil and sediment:
- No Action
- Excavation and Asphalt-Batching
- Excavation and Off-site Treatment and Disposal.
Because this site is located mostly outside the MMR
boundary, MMR has little ability to control site access and the Limited Action alternative
was not evaluated in detail. Because of the shallow depth and limited extent of
contamination, biosparging was not considered in detail.
AFCEE’s Preferred Alternative for AOC
SD-2/FS-6/FS-8. The preferred alternative for this AOC is Excavation and
Asphalt-Batching.
A total of approximately 14 cubic yards of soil would be
removed at two locations at this AOC. The excavations would then be backfilled with clean
material. Because contaminated soil will be removed from this site, and the preferred
alternative does not include site access restrictions, five-year site reviews would not be
performed.
AOC SD-3/FTA-3/CY-4
Description And History of AOC SD-3/FTA-3/CY-4. This
AOC is near the southeastern boundary of MMR and east of the runways in an industrialized
area (Figure 5). SD-3 originates near CY-4 at the former Central
Heating Plant. The ditch flows into a pipe buried beneath the ammunition storage area and
discharges to SD-4. The following items summarize the history of AOC SD-3/FTA-3/CY-4.
- 1950s. The SD-3 drainage ditch was constructed to
receive the discharge from storm drains serving aircraft hangars and several streets west
of Granville Avenue and the discharge from the Central Heating Plant.
- 1955 to 1978. Coal was stockpiled directly on the
ground prior to installation of a concrete storage pad.
- 1955 to 1992. The coal ash disposal area received
coal ash and fly ash from the Central Heating Plant.
- 1956 to 1958. Fire Training Area No. 3 (FTA-3) was
used for fire-training exercises, and subsequently was backfilled with construction
debris, fill, and coal ash.
- 1987. An SI was performed to assess the presence of
contamination in surface water, sediment, soil, and groundwater at this AOC.
- 1989. An RI was performed to characterize the nature
and extent of sediment, soil, and groundwater contamination.
- 1993. A supplemental RI was performed to further
characterize sediment contamination.
- 1994. 42,000 cubic yards of material, representing
the majority of coal and coal ash at CY-4, were excavated and used as fill below the Main
Base Landfill (LF-1) cover system.
- 1997. A Feasibility Study was performed to evaluate
approaches to control potential site risks.
Why is Cleanup Needed at AOC SD-3/FTA-3/CY-4?
Investigations at AOC SD-3/FTA-3/CY-4 detected fuel- and coal-related contamination in
sediment and in surface and subsurface soil samples; however, most of the soils
represented by those soil samples were removed during the 1994 excavation activities.
The risk assessment, based on remaining site data,
indicated that human health risks from exposure to soil and sediment do not exceed federal
and state risk management guidelines. The results of the ecological risk assessment
indicate potential risk; however, the risk may be overstated suggesting that the
likelihood of adverse ecological effects is low. Therefore, based on available data,
additional remedial actions are not warranted. Additional characterization of surface soil
outside of the 1994 excavation area is required, however, to document remaining soil
contamination and assess the adequacy of the 1994 soil removal. Data from the SERGOU RI
and Johns Pond groundwater study indicate that this AOC is most likely not the source of
the solvent contamination found beneath it. This groundwater contamination will be
addressed by SERGOU.
Evaluated Remedial Alternatives for AOC SD-3/FTA-3/CY-4.
The Feasibility Study assessed how well the following two alternatives would meet the
evaluation criteria while controlling potential adverse human health and ecological
effects from exposure to surface soil:
- No Action
- The modified limited action alternative of Confirmation
Sampling with Contingency of Excavation and Asphalt-Batching
Biosparging was not evaluated in detail because it is not
effective for the type of contaminants found at this AOC.
AFCEE’s Preferred Alternative for AOC
SD-3/FTA-3/CY-4. AFCEE’s preferred alternative for this AOC is Confirmation
Sampling with Contingency of Excavation and Asphalt-Batching. The initial component of
this alternative is surface soil sampling to document remaining soil contamination and
assess the adequacy of the removal action completed in 1994. Surface soil samples would be
collected from the area of coal ash disposal outside of the 1994 removal area and analyzed
for metals and semivolatile organic compounds. If contaminant concentrations are below
cleanup criteria, no further remedial action would be required.
If this sampling shows contamination above cleanup
criteria, the contingency action of additional soil removal followed by asphalt-batching
would be implemented. Based on the observed extent of ash at the site, the potential
excavation volume could be as great as 6,500 cubic yards.
This alternative includes institutional controls in the
form of site access restrictions to limit potential human exposure to site contaminants
and five-year site reviews.
AOC SD-4
Description And History of AOC SD-4. SD-4 is a
drainage way which lies on both sides of Reilly Road south of the flightline (Figure 6). The drainage way received stormwater from storm sewers at the
hangars, the runway/ramps, and a former pumphouse. Operations at these buildings spilled
or disposed liquids into the storm sewer. Over the years, SD-4 has become a wetland area
with a shallow pond and small stream. The following items summarize the history of AOC
SD-4.
- 1950s. SD-4 began receiving stormwater runoff from
the runway, aircraft maintenance ramp, aircraft hangars, support buildings, and a fuel
pumphouse.
- 1968. An oil/water separator was constructed at SD-4,
south of Reilly Road.
- 1989 to 1991. A two-phase SI was performed to assess
the presence of sediment, soil, and groundwater contamination.
- 1993 to 1994. An RI was performed to characterize the
nature and extent of soil, sediment, surface water, and groundwater contamination.
- 1997. A Feasibility Study was performed to evaluate
approaches to control potential site risks.
Why is Cleanup Needed at AOC SD-4? Investigations at
SD-4 detected fuel-related compounds, pesticides, PCBs, and inorganic compounds in surface
soil, sediment, surface water, and groundwater. Significant contamination was not
identified in subsurface soil. The results of the risk assessment indicate that human
health risks from exposure to average contaminant concentrations in soil under existing
exposure conditions do not exceed federal and state risk management guidelines. Under the
future exposure scenario and at maximum concentrations, estimated risks were at federal
and above state target values.
The ecological risk assessment concluded that although risk
estimates exceeded threshold values, use of conservative assumptions during calculation of
risk may have resulted in an overestimate that does not accurately predict adverse
effects. Because contaminated sediments are the interpreted source of suface water
contamination, AFCEE, by taking action to address contaminated sediments, will not need to
take separate action to cleanup surface water.
The risk assessment did not identify the need to cleanup
groundwater.
 Evaluated Remedial Alternatives for AOC SD-4. The
Feasibility Study assessed how well the following three alternatives would meet the
evaluation criteria while controlling potential adverse human health and ecological
effects from exposure to surface soil and sediment:
- No Action
- Excavation and Asphalt-Batching
- Excavation and Off-site Treatment and Disposal
Because potential ecological risk is a major concern at
this site, the Limited Action alternative was not evaluated in detail; the institutional
controls of the Limited Action alternative have little ability to control ecological
exposure and risk. Further, the presence of institutional controls was not assumed in the
risk assessment. Biosparging was not evaluated in detail because it is not effective for
inorganics, a major contributor to potential risk at this site.
AFCEE’s Preferred Alternative for AOC SD-4. The
preferred alternative for AOC SD-4 is excavation and asphalt- batching. The excavation
would be backfilled with clean material and wetland areas restored as appropriate under
Massachusetts regulations.
To limit the adverse effects of excavation on the wetland
areas of SD-4, remedial activities will focus on a small pond where inorganics, organics,
pesticides, and PCBs were detected. Of these, high concentrations of inorganics with
potential contaminant bioavailability have the greatest potential to cause adverse
environmental effects. Pre-excavation confirmation sampling will focus on contaminant
bioavailability and on an evaluation of pond/wetland structure and productivity to assess
whether adverse effects are actually occurring and whether soil/sediment remediation is
justified.
Inorganics, especially lead, will be targeted as
contaminants of concern. The results of the pre-excavation sampling will be used to
identify areas for remediation.
This alternative does not include institutional controls to
limit potential human exposure to site contaminants. Five-year site reviews would be
performed.
AOC SD-5/FS-5
Description And History of AOC SD-5/FS-5. SD-5
includes a storm drainage swale and several buildings on the western side of Runway No. 5
(Figure 7). Possible contamination sources near SD-5 include the
aircraft maintenance ramp, two underground fuel storage/transfer systems (Aquafarms), the
Non-destructive Inspection Laboratory, and the Corrosion Control Shop. The following items
summarize the history of AOC SD-5/FS-5.
- 1950s. SD-5 began receiving stormwater runoff from a
number of sources including the Eastern and Western Aquafarms, the former Non-destructive
Inspection Laboratory, the Corrosion Control Shop, and the Permanent Field Training Site
hangar.
- Early 1960s. Three refueling aircraft were destroyed
in a fire, resulting in the FS-5 fuel spill of up to 15,000 gallons of aviation gasoline.
The spill was washed into the storm drain leading to SD-2.
- 1985. Field investigations evaluated liquid and
sludge in a leaching well and nearby soil.
- 1988. An SI was performed to assess the presence of
soil and groundwater contamination.
- 1989. An RI was performed to characterize the nature
and extent of sediment, soil, and groundwater contamination.
- 1993. A supplemental RI was performed to further
characterize contamination and evaluate site risks.
- 1997. A Feasibility Study was performed to evaluate
approaches to control potential site risks.
 Why
is Cleanup Needed at AOC SD-5/FS-5? Investigations at AOC SD-5/FS-5
detected organic and inorganic contamination in the soil. The risk assessment indicated
that human health risks from exposure to soil for both current and future exposure
scenarios at average exposure concentrations do not exceed federal and state risk
management guidelines. Exceedances of both federal and state guidelines were noted,
however, for the future scenario at maximum concentrations. In addition, concentrations of
lead and petroleum compounds in surface soil exceeded federal and state risk evaluation
criteria. The ecological risk assessment identified potential risks from soils near the
Non-destructive Inspection Laboratory, the Corrosion Control Shop, and Western Aquafarm.
Furthermore, several chemicals with the potential to migrate to groundwater were
identified above threshold concentrations.
Groundwater contamination attributed to AOC SD-5/FS-5 is
being addressed by the SD-5 North Groundwater Plume ETR System. Remedial alternatives for
SD-5 South are currently being evaluated.
Evaluated Remedial Alternatives for AOC SD-5/FS-5.
The Feasibility Study assessed how well the following four alternatives would meet the
evaluation criteria while controlling potential adverse human health and ecological
effects from exposure to surface soil and sediment:
- No Action
- Limited Action
- Excavation and Asphalt-Batching
- Excavation and Off-site Treatment and Disposal
Biosparging was not evaluated in detail because it is not
effective for the inorganic contamination that is a major contributor to potential risk at
this AOC.
AFCEE’s Preferred Alternative for AOC SD-5/FS-5.
The preferred alternative for this AOC is excavation and asphalt- batching. A total of
approximately 9,400 cubic yards of surface and subsurface soil would be removed at several
locations at this AOC. The excavations would then be backfilled with clean material.
This alternative includes institutional controls to limit
potential human exposure to site contaminants. Five-year site reviews would be performed.
Comparisons of Alternatives
The following tables summarize the comparison of
alternatives evaluated in the Feasibility Study. The Feasibility Study performed a
separate detailed analysis and comparison for each alternative; however, for
simplification, the following tables compare each alternative against the criteria in
general terms.
What is a Formal Comment?
During the formal public comment period, AFCEE will accept
formal written comments on the Proposed Plan, and will hold a public hearing to accept
either verbal or written comments. It is important to note that regulations distinguish
between "formal" comments received during the public comment period and
"informal" comments received outside of the comment period. While AFCEE uses
comments throughout site investigation and cleanup, regulations require AFCEE to respond
to formal comments in writing.
You can submit a formal comment in any of the following
ways:
- Offer verbal or written comments during the public hearing
on December 2, 1997;
- Send written comments, postmarked no later than December 15,
1997 to:
HQ AFCEE/MMR
Attn: Six AOCs
322 E. Inner Road
Otis ANG Base, MA 02542-5028
- Submit comments by FAX at (508) 968-4673, or
- Send an electronic mail message to: JWhitaker@mafmh.ang.af.mil,
- Send a message by internet at http://www.mmr.org
Why Submit Formal Comments?
Your comment will become part of the official public
record, a crucial element in the decision-making process. AFCEE will consider all formal
comments received at the public hearing and all written comments received during the
public comment period prior to making the final selection of remedial alternatives for
cleanup at the six AOCs.
A transcript of all formal comments and AFCEE’s
written responses will be issued in a document called a Responsiveness Summary that will
accompany the Record of Decision for the six AOCs. AFCEE experts to complete review of all
comments, select a remedial alternative for each AOC, and issue the Record of Decision
documenting AFCEE's choice in early 1998. At that time, copies of the Responsiveness
Summary will be mailed to everyone who submitted a formal comment. In addition, AFCEE will
announce the decision through the local news media and community mailing list.
GLOSSARY
Area of Contamination (AOC): A portion of a
Superfund site where investigations have established that contamination exists and
requires further assessment. An AOC may include one or more locations.
Applicable or Relevant and Appropriate Requirements
(ARARs): Federal and/or state environmental laws and regulations that must be met
during the implementation and completion of remedial actions.
Bioavailability: A measure of how easily a chemical
is metabolized by living organisms. Some chemicals may be highly toxic in one form, but
less toxic or nontoxic in another form because they are not bioavailable.
Comprehensive Environmental Response, Compensation, and
Liability Act (CERCLA): This law, commonly known as Superfund, authorizes the federal
government to respond directly to releases of hazardous substances that may endanger
public health or the environment.
Cleanup: Actions taken to remove contaminants from
the environment.
Feasibility Study: A study for identifying and
evaluating options for remedial action to reduce risk to human health and the environment
Federal Facility Agreement: An agreement between
USEPA and individual federal facilities which establishes a procedural and legal framework
for investigating and performing remedial actions at Superfund sites.
Flightline: That portion of MMR, including runways,
hangers, and adjacent areas, which directly supports aircraft operations.
Installation Restoration Program (IRP): The
Department of Defense program implemented at military bases to identify, investigate, and
cleanup contamination resulting from past operations.
Institutional Controls: Legal restrictions such as
deed restrictions, zoning, fencing, or land use restrictions which prevent specified
activities from occurring in specified areas to reduce or eliminate exposure.
National Priorities List (NPL): EPA’s list of
uncontrolled or abandoned hazardous waste sites that are priorities for long-term remedial
evaluation and response. NPL sites are eligible to receive federal funds for investigation
and cleanup under the Superfund program.
Proposed Plan: A document which summarizes for the
public the preferred remedial action for a site and presents the rationale for the
preference.
Remedial Action: Action taken to reduce or eliminate
the long-term risks to human health or the environment from exposure to contaminants.
Remedial Investigation (RI): An investigation to
gather and analyze the data necessary to determine the nature and distribution of
contamination at a site, and to provide information for performing a feasibility study
Risk Assessment: An evaluation of human health and
ecological risk resulting from exposure to a chemical or pollutant.
ACRONYMS
AFCEE Air Force Center for Environmental Excellance
ETR extraction, treatment, reinjection
MADEP Massachusetts Department of Environmental
Protection
MMR Massachusetts Military Reservation
PCB polychlorinated biphenyl
SERGOU Southeast Regional Groundwater Operable Unit
SI site investigation
USEPA U.S. Environmental Protection Agency
For Further Information
This Proposed Plan to Cleanup Six Areas of
Contamination is available for review, along with the supplemental documentation, as will
be the Record of Decision and Responsiveness Summary at the:
Installation Restoration Program
HQ AFCEE/MMR
322 E. Inner Road
Otis ANG Base, Massachusetts 02542-5028
Tel: (508) 968-4670
Hours: 8:00 a.m. to 4:30 p.m., Monday through Friday
Information and technical documents are also available at
the main libraries in the towns of Bourne, Falmouth, Mashpee, and Sandwich; at the U.S.
Coast Guard library at MMR; and at the MMR Web site (http://www.mmr.org).
For further information, please contact: |
