Document ID: EPA-HQ-SFUND-1989-0007-0002
Agency: epa
Document Type: Proposed Rule
Title: National Oil and Hazardous Substances Pollution Contingency Plan; National Priorities List; Partial Deletion of Sites From the Otis Air National Guard Base/Camp Edwards Superfund Site
Posted Date: 2007-08-01T04:00Z

[Federal Register: August 1, 2007 (Volume 72, Number 147)]
[Proposed Rules]               
[Page 41976-42001]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr01au07-32]                         

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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 300

[FRL-8447-3]

 
National Oil and Hazardous Substances Pollution Contingency Plan; 
National Priorities List; Partial Deletion of Sites From the Otis Air 
National Guard Base/Camp Edwards Superfund Site

AGENCY: Environmental Protection Agency (EPA).

ACTION: Notice of intent.

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SUMMARY: EPA is announcing its intent to partially delete 61 source 
area sites on the Otis Air National Guard Base/Camp Edwards Superfund 
Site from the National Priorities List (NPL) and requests public 
comment on this action. A source area site is defined by: soil; 
structures, if present; and does not include any contaminated 
groundwater plume that may be below the site. Otis Air National Guard 
Base/Camp Edwards is a Federal Facility Superfund Site known locally as 
the Massachusetts Military Reservation (MMR), so this notice will use 
MMR as the abbreviation to describe the entire Superfund Site. The 
United States Air Force is the lead agency at the MMR Superfund Site.
    EPA bases its proposal to partially delete the 61 source area sites 
from the MMR Superfund Site on the determination of EPA and the 
Commonwealth of Massachusetts, through the Massachusetts Department of 
Environmental Protection (MassDEP), that all appropriate response 
actions under the Comprehensive Environmental Response, Compensation, 
and Liability Act (CERCLA) have been implemented to protect human 
health, welfare, and the environment and that no further response 
actions by responsible parties, at these 61 sites, are appropriate. 
Based on all investigations completed to date, there are 80 source area 
sites at MMR. Upon conclusion of this process, there would be 19 source 
area sites remaining. This partial deletion pertains to only the 
surface area of sites investigated (and in some cases cleaned-up) for 
soil contamination, and does not pertain to any of the 12 groundwater 
plumes associated with MMR Superfund Site. All other sites (including 
all contaminated groundwater plumes on the Site) not included in this 
notice will remain on the NPL. In the northern half of the MMR, there 
are source area sites and groundwater plumes associated with an 
investigation and cleanup program known as the Impact Area Groundwater 
Study Program which is being conducted under the authority of Safe 
Drinking Water Act Administrative Orders. These sites and groundwater 
plumes are not the subject of this partial deletion proposal.
    The NPL, promulgated pursuant to section 105 of CERCLA, as amended, 
is Appendix B of 40 CFR part 300, which is the National Oil and 
Hazardous Substances Pollution Contingency Plan (NCP). This partial 
deletion of the Otis Air National Guard Base/Camp Edwards Superfund 
Site is proposed in accordance with 40 CFR 300.425(e) and the Notice of 
Policy Change: Partial Deletion of Sites Listed on the National 
Priorities List (60 FR 55466). This action is being proposed by EPA 
with the concurrence of the Commonwealth of Massachusetts, through the 
MassDEP, because EPA has determined that all appropriate response 
actions under CERCLA have been completed and, therefore, further 
remedial action pursuant to CERCLA is not appropriate.

DATES: Comments concerning this proposed partial deletion may be 
submitted on or before August 31, 2007.

ADDRESSES: Submit your comments identified by Docket ID No. EPA-HQ-
SFUN-1989-0007, by one of the following methods:
     http://www.regulations.gov. Follow the online instructions 

for submitting comments.
     E-mail: lim.robert@epa.gov.
     Fax: 617-918-0392.
     Mail: Bob Lim, Remedial Project Manager, U.S. EPA. New 
England Region, One Congress Street, Suite 1100 (HBT), Boston, MA 
02114.
     Hand Delivery: Records Center, One Congress Street, Suite 
1100, Boston, MA 02114. Such deliveries are only accepted during the 
Docket's normal hours of operation, and special arrangements should be 
made for deliveries of boxed information.
    Instructions: Direct your comments to Docket ID No. EPA-HQ-SFUND-
1989-0007. EPA's policy is that all comments received will be included 
in the public docket without change and may be available online at 
http://www.regulations.gov, including any personal information 

provided, unless the comment includes information claimed to be 
Confidential Information (CBI) or other information whose disclosure is 
restricted by statute. Do not submit information that you consider to 
be CBI or otherwise protected through http://www.regulations.gov or e-mail. The http://www.regulations.gov Web site is an ``anonymous 

access'' system, which means EPA will not know your identity or contact 
information unless you provide it in the body of your comment. If you 
send an e-mail comment directly to EPA without going through http://www.regulations.gov
, your e-mail address will be automatically captured 

and included as part of the comment that is placed in the public docket 
and made available on the Internet. If you submit an electronic 
comment, EPA recommends that you include your name and other contact 
information in the body of your comment and with any disk or CD-ROM you 
submit. If EPA cannot read your comment due to technical difficulties 
and cannot contact you for clarification, EPA may not be able to 
consider your comment. Electronic files should avoid the use of special 
characters, any form of encryption, and be free of any defects or 
viruses.
    Docket: All documents in the docket are listed in the http://www.regulations.gov
 index. Although listed in the index, some 

information is not publicly available, e.g., CBI or other information 
whose disclosure is restricted by statute. Certain other material, such 
as copyrighted material, will be publicly available only in hard copy. 
Publicly available docket materials are available only in hard copy. 
Publicly available docket materials are available either electronically 
in http://www.regulations.gov or in hard copy at

[[Page 41977]]

the EPA's New England Region Superfund Records Center, One Congress 
Street, Suite 1100, Boston, MA 02114 and the Information Repositories 
at AFCEE/IRP Office at Building 322 on MMR, by appointment only Monday 
through Friday 8 am to 5 pm, (508) 968-4670 ext 1, and the Information 
Repositories in the Towns of Bourne, Falmouth, Sandwich, and Mashpee.

FOR FURTHER INFORMATION CONTACT: Bob Lim, Remedial Project Manager, 
U.S. Environmental Protection Agency, One Congress Street, Suite 1100 
(HBT), Boston, Massachusetts 02114-2023, (617) 918-1392, Fax (617) 918-
1291, e-mail: lim.robert@epa.gov.

SUPPLEMENTARY INFORMATION:

Table of Contents

I. Introduction
II. NPL Deletion Criteria
III. Deletion Procedures
IV. Basis for Intent for Partial Site Deletion
    A. Site Histories for Partial Deletion Sites
    1. Investigation Findings for No Action Sites
    2. Investigation Findings and Response Action Summaries
    B. Community Involvement
    C. Current Status

I. Introduction

    EPA is announcing its intent to partially delete 61 source area 
sites on the Otis Air National Guard Base/Camp Edwards Superfund Site 
from the National Priorities List (NPL) and requests public comment on 
this action. A source area site is defined by: Soil; structures, if 
present; and does not include any contaminated groundwater plume that 
may be below the site. Otis Air National Guard Base/Camp Edwards is a 
Federal Facility Superfund Site known locally as the Massachusetts 
Military Reservation (MMR), so this notice will use MMR as the 
abbreviation to describe the entire Superfund Site. Furthermore to 
avoid confusion, this notice will use a lowercase ``s'' when referring 
to the individual source area sites and a uppercase ``S'' for the 
entire Superfund Site. The United States Air Force through the Air 
Force Center for Engineering and Environment (AFCEE) is the lead agency 
at the MMR Superfund Site.
    The NPL was promulgated pursuant to section 105 of the 
Comprehensive Environmental Response, Compensation, and Liability Act. 
EPA identifies sites that appear to present a significant risk to 
public health or the environment and maintains the NPL as the list of 
those sites. This partial deletion of the 61 sites on the MMR Superfund 
Site is proposed in accordance with 40 CFR 300.425(e) and Notice of 
Policy Change: Partial Deletion of Sites Listed on the National 
Priorities List (60 FR 55466 (Nov. 1, 1995)). EPA will accept comments 
on the proposal to delete the 61 sites for thirty (30) days after 
publication of this document in the Federal Register.
    EPA and the Massachusetts Department of Environmental Protection 
(MassDEP) have determined that remedial action on site soil and, if 
present, structures at these clearly defined 61 sites have been 
successfully completed. The remaining sites of the MMR Superfund Site 
will remain on the NPL (all groundwater, surface water and soil not 
contained in these 61 portions (see Table 1)) for remedial 
investigation, remedial action, and continued monitoring. MMR occupies 
over 22,000 acres of land in portions of the Towns of Bourne, Falmouth, 
Mashpee, and Sandwich. MMR was listed on the National Priorities List 
in 1989 (CERCLIS ID--MA2570024487).
    A two-party Federal Facility Agreement which was signed in 1991, 
and as subsequently amended, requires the Air Force to take the lead on 
cleanup activities for Installation Restoration Program sites at MMR.
    The military's Installation Restoration Program (IRP) was 
established in 1982 leading to numerous soil and groundwater 
investigations and cleanups in the southern, developed southern half of 
the base. In addition, the military has extended public water supply 
lines into neighborhoods where plumes have affected groundwater 
underneath homes which had relied on private wells. To date, 
investigations have identified 80 source area sites and 12 groundwater 
plumes. Figures and tables supporting this notice are found in separate 
appendices in the Deletion Docket. Figure 1 shows all IRP source area 
sites and IRP plumes. For more information on the site history and 
current news at MMR, visit the program's Web site (http://www.mmr.org).

    This partial deletion proposal pertains to the soil and, if 
present, structures at 61 sites ranging in size from half an acre to 
80.7 acres. The total proposed area is 482.1 acres. Acreage and 
coordinates for each individual site are presented in each site 
summary. In addition, the Deletion Docket contains a file with a table 
of all sites with the area and coordinates of each site. Table 1 
identifies structures as being present with an asterisk next to the 
site name and noted in those site summaries. Based on all 
investigations completed to date, there are 80 source area sites at 
MMR. Upon conclusion of this process, there would be 19 source area 
sites remaining. Even though some of the sites appear to be above 
contaminated groundwater plumes, this partial deletion does not include 
any plumes of contaminated groundwater because data shows that the 
sites are not related to the plumes.
    Figure 1 identifies the 12 plumes of contaminated groundwater 
associated with MMR Superfund cleanup. They are: Ashumet Valley, 
Chemical Spill-4 (CS-4); CS-10; CS-19; CS-20; CS-21; CS-23; Fuel Spill-
1 (FS-1); FS-12; FS-28; FS-29; and Landfill-1. Primary contaminants of 
concern in these plumes include solvents (i.e., trichloroethylene, 
tetrachloroethylene), fuel components (i.e., ethylene dibromide), and 
an explosive compound (i.e., 1,3,5-hexahydro-1,3,5-trinitrotoluene 
(RDX)), in the CS-19 plume. There are currently eleven groundwater pump 
and treat cleanup remedies for which cleanup on some plumes is expected 
to continue for over 25 years. AFCEE currently operates groundwater 
cleanup systems for 11 groundwater plumes and treats over 18 million 
gallons per day. From 1997 to March 2007, over 32 billion gallons of 
contaminated groundwater have been extracted and treated.
    In the northern half of MMR, there is a separate, ongoing 
investigation and cleanup program known as the Impact Area Groundwater 
Study Program (IAGWSP). These sites and groundwater plumes are not the 
subject of this Notice of Intent for Partial Deletion. The authority 
for this program is based upon EPA's Safe Drinking Water Act (SDWA) 
Program. In February 1997, EPA's New England regional office (EPA New 
England) issued SDWA Administrative Order 1-97-1019 (AO1) requiring 
investigation of contamination at or emanating from the Training Ranges 
and Impact Area upon the sole source aquifer that underlies MMR and 
surrounding communities. In May 1997, EPA New England issued SDWA 
Administrative Order 1-97-1030 (AO2), which prohibited all live firing 
of mortars and artillery, firing of lead from small arms, planned 
detonation of ordnance or explosives at or near the Training Ranges and 
Impact Area except for UXO activities, and certain other training 
related activities. In January 2000, EPA New England issued SDWA 
Administrative Order 1-2000-0014 (AO3), which required the IAGWSP to 
implement Rapid Response Actions (RRAs) and remedial actions to ``abate 
the threat to public health presented by the contamination from past 
and present activities and sources at and emanating from the Training 
Ranges and Impact Area.'' The Department of the Army is undertaking the 
investigation and

[[Page 41978]]

cleanup under the Administrative Orders. EPA has issued a total of four 
Administrative Orders for investigation and cleanup, and prohibition of 
all live fire of munitions, propellants and pyrotechnics, demolition 
training, firing of lead from small arms, planned detonation of 
ordnance, or explosives except for UXO activities and certain other 
training related activities. Figure 1 shows a number of plumes which 
have been identified in the IAGWSP investigations. The primary 
contaminants of concern in these plumes are 1,3,5-hexahydro-1,3,5-
trinitrotoluene (RDX) and perchlorate, which are mapped to their non-
detect boundary (i.e., 0.35 parts per billion for perchlorate and 0.25 
parts per billion for RDX). The MassDEP has promulgated a 2.0 part per 
billion groundwater cleanup standard for perchlorate. There is no 
promulgated groundwater standard for RDX, but its Health Advisory is 
2.0 parts per billion and its risk-based action level for a one-in-
million excess cancer risk probability is 0.6 parts per billion.
    Shown on Figure 1, the IAGWSP plumes of contaminated groundwater 
are: Central Impact Area (CIA); Demolition Area 1 (Demo 1); Demo 2; J-1 
North; J-2 North; J-2 East; J-3; L-Range; and Northwest Corner. IAGWSP 
source area sites are not shown on Figure 1. In 2004 and 2005, short-
term response actions were undertaken to address both soil and 
groundwater contamination. Currently, there are temporary groundwater 
cleanup systems for Demo 1, J-2 North and J-3 South plumes. For more 
information on this program, visit the program's Web site (http://groundwaterprogram.army.mil
).

    The EPA identifies sites that appear to present a significant risk 
to public health or the environment and maintains the NPL as the list 
of those sites. As described in Sec.  300.425(e)(3) of the NCP, sites 
deleted from the NPL remain eligible for remedial actions if conditions 
at a deleted site warrant such action.
    Section II of this document explains the criteria for deleting 
sites from the NPL. Section III discusses the procedures EPA is using 
for this action. Section IV discusses sites in detail, the soil portion 
of each of the 61 sites, and explains how each site meets the deletion 
criteria.

II. NPL Deletion Criteria

    The National Contingency Plan (NCP) establishes the criteria that 
EPA uses to delete sites from the NPL. In accordance with 40 CFR 
300.425(e), sites may be deleted from the NPL where no further response 
is appropriate to protect public health or the environment. In making 
such a determination pursuant to Sec.  300.425(e), EPA will consider, 
in consultation with the State, whether the following criteria have 
been met:
     300.425(e)(1)(i). Responsible parties or other persons 
have implemented all appropriate response actions required; or
     Sec.  300.425(e)(1)(ii). All appropriate Fund-financed 
response under CERCLA has been implemented; or
     Sec.  300.425(e)(1)(iii). The remedial investigation has 
shown that the release poses no significant threat to public health or 
the environment and, therefore, taking of remedial measures is not 
appropriate.
    Deletion of a portion of a site from the NPL does not preclude 
eligibility for subsequent Fund-financed actions at the area deleted if 
future site conditions warrant such actions. Sec.  300.425(e)(3) of the 
NCP provides that Fund-financed actions may be taken at sites that have 
been deleted from the NPL.
    A partial deletion of a site from the NPL does not affect or impede 
EPA's ability to conduct CERCLA response activities at area not deleted 
and remaining on the NPL. In addition, deletion of a portion of a site 
from the NPL does not affect the liability of responsible parties or 
impede agency efforts to recover costs associated with response 
efforts.
    In the case of MMR, the selected remedies are protective of human 
health and the environment. Two five-year reviews have been conducted 
at MMR. Copies are located at the repository previously noted. For 
sites with remedies or final decisions, the remedies were deemed 
protective, and no information existed to warrant any changes to 
protectiveness statements for other sites.

III. Deletion Procedures

    Deletion of the 61 sites on the MMR Superfund Site from the NPL 
does not itself create, alter, or revoke any person's rights or 
obligations. Deletion of the site from the NPL does not preclude 
eligibility for future response actions, NCP Sec.  300.425(e)(3). The 
following procedures were used for the proposed deletion of the 
following study areas from the MMR Superfund Site:
     EPA has recommended the partial deletion and has prepared 
the relevant documents.
     EPA has consulted with the Commonwealth of Massachusetts 
on the partial deletion of the sites from the NPL.
     The Commonwealth of Massachusetts concurred with the 
partial deletion of the sites from the NPL.
     Concurrent with this national Notice of Intent for Partial 
Deletion, a public notice will also appear in a local newspaper. 
Additionally, notice has been distributed to appropriate Federal, 
State, local officials, and other interested parties. These notices 
announce a thirty (30) day public comment period on the deletion 
package, which commences on the date of the publication of this 
document in the Federal Register and a newspaper of record.
     All relevant documents have been compiled in the site 
deletion docket and are available at the information repositories 
listed previously.
    Upon completion of the thirty (30) day public comment period for 
the deletion of the 61 sites on the MMR Superfund Site, EPA's New 
England regional office will accept and evaluate all public comments 
received before making a final decision to delete. If necessary, the 
Agency will prepare a Responsiveness Summary to address any significant 
public comments received. The Responsiveness Summary will be made 
available to the public at the information repositories listed 
previously (or in the site docket at http://www.regulations.gov). If, 

after review of all public comments, EPA determines that the partial 
deletion from the NPL is appropriate, EPA will publish a final Notice 
of Partial Deletion in the Federal Register. Deletion of the 61 sites 
does not actually occur until the final Notice of Partial Deletion is 
published in the Federal Register.

IV. Basis for Intent for Partial Site Deletion

A. Site Histories for Partial Deletion Sites

    The following information presents EPA's rationale for deleting the 
sites from the MMR Superfund Site. To aid in the understanding of the 
61 sites that are the subject of this action, the site history 
narratives are organized into two groups, Sections A.1 and A.2. A 
summary of the site names are found in Table 1 which is found in a 
tables appendix in the Deletion Docket. Section A.1 contains site 
narratives where no cleanup action was taken because the investigation 
found the site conditions to be protective of both human and the 
environment. Section A.2 contains sites where actions (CERCLA and non-
CERCLA actions) have been completed.

[[Page 41979]]

1. Investigation Findings for No Action Sites
    The sites in this section have been investigated, but were found to 
have no contamination and no CERCLA or non-CERCLA actions have been 
taken. Sites with structures that are part of the partial deletion are 
noted in the each narrative, if present, and are identified in Table 2 
with an asterisk. Table 2 can be found in the tables appendix in the 
Deletion Docket. Figures that are referenced in this section can be 
found in a figures appendix in the Deletion Document.
    The no action decisions for these 17 sites have been documented in 
decision documents called No Further Action Decision Documents. These 
documents are jointly signed by representatives from EPA, the Air Force 
and the Commonwealth of Massachusetts, and provide investigation 
summaries and the conclusion of no action. At MMR and other Federal 
Facility Superfund Sites, no action for sites, which have only been 
investigated at the preliminary assessment/site inspection (PA/SI) 
level of effort and found to require no action, are typically 
documented via a No Further Action Decision Document rather than Record 
of Decision.
Chemical Spill-5 (U.S. Coast Guard) (CS-5 (CG))
Site Location and History
    CS-5 (CG), U.S. Coast Guard Carpentry Shop, is located in the 
Cantonment Area of the MMR, as shown in Figure 4. Its coordinates in 
Easting and Northing coordinates (MA State Plane NAD27 feet) are: 
856392, 242413; 856587, 242280; 856502, 242170; 856307, 242305; and 
856392, 242413. The area CS-5 (CG) proposed for partial deletion 
includes all surface soils and structures within these coordinates.
    CS-5 (CG) is a less than one-acre area which featured a carpentry 
shop which operated from 1973 to the mid-1990s and housed paint wastes 
such as turpentine, thinner, and excess paint.
Investigation and Feasibility Study Activities
    A Phase I Records Search was completed in December 1986. The site 
was assessed and found to have no evidence of past disposal or spills 
of hazardous substances.
    No feasibility study was conducted since the records search 
concluded that the site did not impact the soil and groundwater.
Characterization of Risk and Decision Document Findings
    A No Further Action Decision Document was finalized in July 1991. 
No risks are present at CS-5 (CG) and no institutional controls are 
present.
Response Actions and Cleanup Standards
    No response actions have been taken and no cleanup standards have 
been set.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Chemical Spill-7 (CS-7)
Site Location and History
    CS-7, Operational Motor Pool (Organizational Maintenance Shops-6), 
is located in the Cantonment Area of the MMR, as shown in Figure 5. Its 
coordinates in Easting and Northing coordinates (NAD27) are: 863203, 
241519; 863318, 241471; 863243, 241297; 863129, 241345; and 863203, 
241519. The area CS-7 proposed for partial deletion includes all 
surface soils and structures within these coordinates.
    CS-7 is half-acre area which featured a vehicle maintenance shop 
which was operated by the Air National Guard from 1966 to 1976. Wastes 
were accumulated and eventually transported for off-site disposal, but 
any spills would have flowed into the stormwater drainage system. 
Currently, Massachusetts Army National Guard vehicles are maintained at 
this location.
Investigation and Feasibility Study Activities
    A Phase I Records Search was completed in December 1986. The site 
was assessed and found to have no evidence of past disposal or spills 
of hazardous substances. Current hazardous waste management practices 
were reviewed and found to be adequate in preventing spills and 
releases to the environment.
    No feasibility study was conducted since the records search 
concluded that the site did not impact the soil and groundwater.
Characterization of Risk and Decision Document Findings
    A No Further Action Decision Document was finalized in August 1990. 
No risks are present at CS-7 and no institutional controls are present.
Response Actions and Cleanup Standards
    No response actions have been taken and no cleanup standards have 
been set.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Chemical Spill-7 (U.S. Coast Guard) (CS-7 (CG))
Site Location and History
    CS-7 (CG), U.S. Coast Guard Dry Cleaning Facility, is located in 
the Cantonment Area of the MMR, as shown in Figure 4. Its coordinates 
in Northing and Easting coordinates (NAD27) are: 859050, 239116; 
859086, 239098; 859043, 239010; 859006, 239028; and 859050, 239116. The 
area CS-7 (CG) proposed for partial deletion includes all surface soils 
and structures within these coordinates.
    CS-7 (CG) is a one tenth of an acre area which featured a dry-
cleaning facility which operated from the mid-1960s to 1975 using a 
TCE-containing dry-cleaning compound. The dry-cleaning machines were 
reported to have periodically leaked fluid on the floor which had floor 
drains that were connected to the base sanitary sewer system.
Investigation and Feasibility Study Activities
    A Phase I Records Search was completed in December 1986. The site 
was assessed and found to have no evidence of past disposal or spills 
of hazardous substances onto site soil because any leaked or spilled 
dry-cleaning fluids would have flowed into the building's floor drains 
which are connected to the base sanitary sewer system.
    No feasibility study was conducted since the records search 
concluded that the site did not impact the soil and groundwater.
Characterization of Risk and Decision Document Findings
    A No Further Action Decision Document was finalized in July 1991. 
No risks are present at CS-7 (CG) and no institutional controls are 
present.
Response Actions and Cleanup Standards
    No response actions have been taken and no cleanup standards have 
been set.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.

[[Page 41980]]

Chemical Spill-12 (CS-12)
Site Location and History
    CS-12, Veterans Administration Roads and Grounds Shop, is located 
in the Cantonment Area of the MMR, as shown in Figure 4. Its 
coordinates in Easting and Northing coordinates (NAD27) are: 851979, 
246666; 852048, 246851; 852328, 246750; 852260, 246566; and 851979, 
246666. The area CS-12 proposed for partial deletion includes all 
surface soils and structures within these coordinates.
    CS-12 is a one-acre area which featured a maintenance shop for the 
Veterans Administration which has operated since 1980. All generated 
wastes are disposed at an off-site location, but any spills would have 
flowed into floor drains which include an oil/water separator and 
leaching pit.
    No significant spills of waste petroleum, oil or lubricants; 
solvents; herbicides; or pesticides are know to have occurred.
Investigation and Feasibility Study Activities
    A Phase I Records Search was completed in December 1986. The site 
was assessed and found to have no evidence of past disposal or spills 
of hazardous substances. Investigation indicated no contamination 
requiring action. Current hazardous waste management practices were 
reviewed and found to be adequate in preventing spills and releases to 
the environment.
    No feasibility study was conducted since the records search 
concluded that the site did not impact the soil and groundwater.
Characterization of Risk and Decision Document Findings
    A No Further Action Decision Document was finalized in July 1991. 
No risks are present at CS-12 and no institutional controls are 
present.
Response Actions and Cleanup Standards
    No response actions have been taken and no cleanup standards have 
been set.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Coal Yard-1 (CY-1)
Site Location and History
    CY-1 is located in the western half of the Cantonment Area of the 
MMR, as shown in Figure 4. Its coordinates in Easting and Northing 
coordinates (NAD27) are: 855517, 240898; 856096, 240798; 856109, 
240882; 856835, 240781; 856662, 240092; 856946, 240284; 855839, 239812; 
855260, 239978; and 855517, 240898. The area CY-1 proposed for partial 
deletion includes all structures and surface soils within these 
coordinates.
    CY-1 is a 24.5-acre former U.S. Army coal storage area which 
operated from 1940 to 1957. Coal was unloaded and stockpiled on the 
ground surface prior to transport to individual power plants.
Investigation and Feasibility Study Activities
    Since CY-1 had a similar operational history to CY-2 and CY-4, 
findings from CY-2 and CY-4 investigations were used to guide the CY-1 
investigation. Investigations at CY-2 and CY-4 included: soil borings 
and monitoring well installation; surface and subsurface soil samples; 
and ash samples. Results from these investigations demonstrated that 
coal storages did not cause soil or groundwater contamination. Of the 
few detected analytes, all were below action levels.
    The distribution of PAHs at CY-2 suggests that significant leaching 
of PAHs from coal storage activities has not occurred. Groundwater data 
from CY-2 also confirms that PAHs are not migrating to groundwater. A 
groundwater monitoring well at CY-1 was installed in 1998 and found not 
to contact any site-related contaminants. Additional surface soil 
sampling was conducted at CY-1 in June 2001. Samples were analyzed for 
specific metals (i.e, arsenic, chromium, lead, vanadium, and zinc). All 
results were below action levels.
    Based on the findings at CY-2 and CY-4, and of additional 
investigations at CY-1 and CY-3, no further action was recommended at 
CY-1. No feasibility study was conducted since the investigations 
concluded that there were no risks to human health and the environment.
Characterization of Risk and Decision Document Findings
    A No Further Action Decision Document was finalized in January 
2003. No risks requiring action are present at CY-1, and no 
institutional controls are present.
Response Actions and Cleanup Standards
    No response actions have been taken and no cleanup standards have 
been set.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Coal Yard-3 (CY-3)
Site Location and History
    CY-3 is located in the western half of the Cantonment Area of the 
MMR, as shown in Figure 4. Its coordinates in Northing and Easting 
coordinates (NAD27) are: 854442, 243657; 855106, 243623; 854977, 
243197; 854604, 243197; 854602, 243379; 854454, 243431; and 854442, 
243657. The area CY-3 proposed for partial deletion includes all 
surface soils within these coordinates.
    CY-3 is a five-acre area which was located at the former VA 
hospital steam plant which operated from 1945 to 1972. Coal was stored 
on an unbermed, paved pad before transfer to hopper bins. Coal ash was 
temporarily stored in a pit before being taken to the on-base landfill. 
All stockpiled coal and ash have been removed.
Investigation and Feasibility Study Activities
    Since CY-3 had a similar operational history to CY-2 and CY-4, 
findings from CY-2 and CY-4 investigations were used to guide the CY-3 
investigation. Investigations at CY-2 and CY-4 included: soil borings 
and monitoring well installation; surface and subsurface soil samples; 
and ash samples. Results from these investigations demonstrated that 
coal storages did not cause soil or groundwater contamination. Of the 
few detected analytes, all were below action levels.
    The distribution of PAHs at CY-2 suggests that significant leaching 
of PAHs from coal storage activities has not occurred. Groundwater data 
from CY-2 also confirms that PAHs are not migrating to groundwater. A 
groundwater monitoring well at CY-1 was installed in 1998 and found not 
to contact any site-related contaminants. Additional surface soil 
sampling was conducted at CY-3 in June 2001. Samples were analyzed for 
specific metals (i.e, arsenic, chromium, lead, vanadium, and zinc). All 
results were below action levels.
    Based on the findings at CY-2 and CY-4, and of additional 
investigations at CY-1 and CY-3, no further action was recommended at 
CY-3. No feasibility study was conducted since the investigations 
concluded that there were no risks to human health and the environment.

[[Page 41981]]

Characterization of Risk and Decision Document Findings
    A No Further Action Decision Document was finalized in January 
2003. No risks requiring action are present at CY-3, and no 
institutional controls are present.
Response Actions and Cleanup Standards
    No response actions have been taken and no cleanup standards have 
been set.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Fuel Spill-2 (U.S. Coast Guard) (FS-2 (CG))
Site Location and History
    FS-2 (CG) is located in the western half of the Cantonment Area of 
the MMR, as shown in Figure 4. Its coordinates in Easting and Northing 
coordinates (NAD27) are: 856255, 237383; 857124, 237257; 857125, 
236889; 856250, 237016, and 856255, 237383. The area FS-2 (CG) proposed 
for partial deletion includes all surface soils within these 
coordinates.
    FS-2 (CG) is a four-acre area which was a former location of a hot-
mix asphalt plant which operated between 1941 and 1943. It was reported 
that asphalt transportation trucks were washed with kerosene or diesel 
fuel at an unknown location within the area.
Investigation and Feasibility Study Activities
    A preliminary assessment in 1986 identified FS-2 (CG) as a 
potential area of past uncontrolled releases of hazardous substances. 
During field investigations between October 1990 and January 1991, and 
in 1993, test pits were excavated and surface soil and subsurface soil 
samples were collected and analyzed to evaluate site conditions. A 
downgradient monitoring well was also installed and sampled. In 1995, 
additional soil samples (surface and subsurface) were collected using a 
hand-auger and analyzed.
    Soil data and field observations confirmed the presence of the past 
asphalt-batching plant and construction debris. Semivolatile compounds 
(i.e., those typically found in asphalt) were detected. Inorganics were 
sporadically detected above background concentrations. Compounds 
observed in soil were not observed in groundwater which is further 
indication of no source areas at the site. Human health and ecological 
risk was evaluated at the site and indicated that the site did not pose 
a risk warranting any action.
    No feasibility study was conducted since a risk evaluation 
concluded that there were no risks to human health and the environment.
Characterization of Risk and Decision Document Findings
    A No Further Action Decision Document was finalized in February 
2000. No risks requiring action are present at FS-2 (CG), and no 
institutional controls are present.
Response Actions and Cleanup Standards
    No response actions have been taken and no cleanup standards have 
been set.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Fuel Spill-3 (FS-3)
Site Location and History
    FS-3, the Johns Pond Fuel Dump Site, is located south of the MMR 
boundary, as shown in Figure 5. Its coordinates in Easting and Northing 
coordinates (NAD27) are: 865984, 235664; 866044, 235743; 867241, 
234840; 867181, 234760; and 865984, 235664. The area FS-3 proposed for 
partial deletion includes all structures and surface soils within these 
coordinates.
    FS-3 is a three-acre area which consists of a 1,500 foot road 
section along Back Road and 50 feet on either side of the road. It was 
estimated that between 1955 and 1962, an average of three aircraft 
refueler trucks per week each drained 40 gallons of fuel or fuel-
contaminated water onto the shoulders of this road section.
Investigation and Feasibility Study Activities
    A preliminary assessment in 1986 identified FS-3 as a potential 
area of past uncontrolled releases of hazardous substances. A site 
investigation which included a soil gas survey, soil boring and 
monitoring well installation, and collection and analysis of soil and 
groundwater samples was conducted in 1988. Soil data showed an absence 
of contaminant source areas and were consistent with background values 
for inorganics. Fuel-related compounds were not detected in 
groundwater. The investigation data supported that there was no 
contaminated soil or groundwater from the historical releases.
    No feasibility study was conducted since a risk evaluation 
concluded that there were no risks to human health and the environment.
Characterization of Risk and Decision Document Findings
    A No Further Action Decision Document was finalized in January 
2000. No risks are present at FS-3 and no institutional controls are 
present.
Response Actions and Cleanup Standards
    No response actions have been taken and no cleanup standards have 
been set.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Fuel Spill-15 (FS-15)
    Site Location and History
    FS-15, Runway No. 5, is located in the secure flightline area of 
the MMR, as shown in Figure 5. Its coordinates in Easting and Northing 
coordinates (NAD27) are: 864651, 238513; 864787, 238949; 865144, 
238777; 864832, 238386; and 864651, 238513. The area FS-15 proposed for 
partial deletion includes all surface soils within these coordinates.
    FS-15 is a three-acre area which was known as the Runway No. 5 fuel 
spill of aviation gasoline. It was reported to have occurred in the 
early 1960s when a plane crashed near at the southern end of the runway 
by the same name. A significant amount of the fuel was consumed in a 
fire.
Investigation and Feasibility Study Activities
    A Phase I Records Search was completed in December 1986. The 
records search concluded that there was negligible contaminant 
migration into the soil and groundwater because the fire following the 
fuel spill consumed the fuel.
    No feasibility study was conducted since the records search 
concluded that the spill did not impact the soil and groundwater.
Characterization of Risk and Decision Document Findings
    A No Further Action Decision Document was finalized in August 1990. 
No risks are present at FS-15 and no institutional controls are 
present.
Response Actions and Cleanup Standards
    No response actions have been taken and no cleanup standards have 
been set.

[[Page 41982]]

Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Fuel Spill-16 (FS-16)
    Site Location and History
    FS-16, Army Maintenance, Building 2816, is located in the secure 
flightline area of the MMR, as shown in Figure 5. Its coordinates in 
Easting and Northing coordinates (NAD27) are: 863696, 241715; 863796, 
241952; 863998, 241855; 863892, 241627; and 863696, 241715. The area 
FS-16 proposed for partial deletion includes all surface soils and 
structures within these coordinates.
    FS-16 is a one-acre area which was located outside of Building 
2816, the Army Helicopter Maintenance Building, where a tanker truck 
spilled approximately 200 gallons of JP-4 in 1982. The spill was washed 
off the tarmac and into the surrounding ground.
Investigation and Feasibility Study Activities
    A Phase I Records Search was completed in December 1986. The 
records search concluded that there was negligible contaminant 
migration into the soil and groundwater because the volume of spilled 
fuel was small and it was assumed that a majority of the spilled fuel 
volatilized and degraded over time.
    No feasibility study was conducted since the records search 
concluded that the spill did not impact the soil and groundwater.
Characterization of Risk and Decision Document Findings
    A No Further Action Decision Document was finalized in July 1991. 
No risks are present at FS-16 and no institutional controls are 
present.
Response Actions and Cleanup Standards
    No response actions have been taken and no cleanup standards have 
been set.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Fuel Spill-27 (FS-27)
Site Location and History
    FS-27 is located south of the MMR boundary, as shown in Figure 4. 
It is three parcels with coordinates in Easting and Northing 
coordinates (NAD27). The first parcel's coordinates are: 857983, 
238854; 857986, 238536; 857917, 238536; 857918, 238854; and 857983, 
238854. The second parcel's coordinates are: 855492, 242421; 855716, 
242424; 855716, 242258; 855494, 242260; and 855492, 242421. The third 
parcel's coordinates are: 858088, 244484; 859974, 243704; 859949, 
243537; 860044, 243382; 860235, 243323; 860326, 243027; 862694, 241938; 
861667, 239703; 861660, 239707; 862683, 241932; 860319, 243022; 860229, 
243316; 860036, 243377; 859941, 243536; 859966, 243700; 858085, 244476; 
854176, 246140; 854023, 245467; 853789, 245026; 853460, 244616; 853187, 
244306; 853109, 243761; 853238, 243553; 852968, 243312; 852963, 243318; 
853228, 243557; 853100, 243760; 853180, 244310; 853454, 244621; 853782, 
245031; 854015, 245469; 854168, 246143; 852475, 246877; 850727, 248013; 
850572, 248268; 850170, 249298; 849787, 249779; 849347, 250292; 849095, 
250502; 848664, 250713; 848399, 250928; 848404, 250934; 848668, 250720; 
849099, 250509; 849353, 250297; 849793, 249784; 850177, 249302; 850580, 
248271; 850732, 248020; 852482, 246881; and 858088, 244484. The area 
FS-27 proposed for partial deletion includes all surface soils within 
these coordinates.
    FS-27 is composed of three areas totaling six acres where soil 
excavated during the installation of a fiber-optic cable line along 
Connery Avenue, West Hospital Road, North Inner Road, and Generals 
Boulevard was stockpiled. The stockpiles were: beneath overhead power 
lines off Guenther Road (approximately 1,000 cubic yards); and in an 
embankment (approximately 480 cubic yards) behind Building 5202 (the 3-
in-1 Store).
Investigation and Feasibility Study Activities
    Investigation of potential contamination from FS-27 excavated soil 
was initiated because petroleum hydrocarbons were detected in March 
1990 in soil from the Guenther Road stockpile when it was used as 
backfill at another site. A site inspection at FS-27 along the fiber 
optic line was conducted in 1993. A remedial investigation of the area 
adjacent to Building 5202 was conducted in 1993-1994. A supplemental 
investigation was conducted in 1999. Activities included subsurface 
soil sampling, installation of monitoring wells, and analyses of soil 
and groundwater samples.
    Results from the investigations demonstrated that the soil was not 
significantly impacted from site activities. Groundwater samples near 
Building 5202 show that the soil is not contaminated and impacting the 
groundwater.
    No feasibility study was conducted since a risk evaluation 
concluded that there were no risks to human health or the environment.
Characterization of Risk and Decision Document Findings
    A No Further Action Decision Document was finalized in May 2001. No 
risks are present at FS-27 and no institutional controls are present.
Response Actions and Cleanup Standards
    No response actions have been taken and no cleanup standards have 
been set.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Landfill-1 (U.S. Coast Guard) (LF-1 (CG))
    Site Location and History
    LF-1 (CG) is located in the southeastern portion of MMR, as shown 
in Figure 5. Its coordinates in Easting and Northing coordinates 
(NAD27) are: 866535, 243403; 866639, 242391; 865910, 242353; 865811, 
243343; and 866535, 243403. The area LF-1 (CG) proposed for partial 
deletion includes all surface soils within these coordinates.
    LF-1 (CG) is a 16-acre area that was used for disposal of asphalt 
and debris generated during a runway extension project completed in the 
1950s.
Investigation and Feasibility Study Activities
    This site was initially identified in the records search in 1986. 
Empty containers and asphalt rubble were observed during a walkover 
which was conducted in February 1990. A single downgradient monitoring 
well was installed to monitor for potential impact of the site on 
groundwater. Groundwater sampling results demonstrated no impact to 
groundwater quality.
    No feasibility study was conducted since no contaminants of concern 
were identified.
Characterization of Risk and Decision Document Findings
    A No Further Action Decision Document was finalized in December 
1995. No risks are present at LF-1 (CG) and no institutional controls 
are present.

[[Page 41983]]

Response Actions and Cleanup Standards
    No response actions have been taken and no cleanup standards have 
been set.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Landfill-2 (U.S. Coast Guard) (LF-2 (CG))
Site Location and History
    LF-2 (CG), U.S. Coast Guard Rubble Landfill, is located in the 
Cantonment Area of the MMR, as shown in Figure 4. Its coordinates in 
Easting and Northing coordinates (NAD27) are: 855740, 242295; 856395, 
242984; 856699, 242717; 856038, 242032; and 855740, 242295. The area 
LF-(CG) proposed for partial deletion includes all surface soils within 
these coordinates.
    LF-2 (CG) is a nine-acre area which was used for the disposal of 
asphalt and concrete.
Investigation and Feasibility Study Activities
    A Phase I Records Search was completed in December 1986. The site 
was assessed and found to have no evidence of past disposal or spills 
of hazardous substances.
    No feasibility study was conducted since the records search 
concluded that the site did not impact the soil and groundwater.
Characterization of Risk and Decision Document Findings
    A No Further Action Decision Document was finalized in July 1991. 
No risks are present at LF-2 (CG) and no institutional controls are 
present.
Response Actions and Cleanup Standards
    No response actions have been taken and no cleanup standards have 
been set.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Landfill-3 (LF-3)
    Site Location and History
    LF-3 is located in the northeastern edge of MMR, as shown in Figure 
3. Its coordinates in Easting and Northing coordinates (NAD27) are: 
875410, 267386; 875088, 267242; 874688, 268236; 875009, 268380; and 
875410, 267386. The area LF-3 proposed for partial deletion includes 
all surface soils within these coordinates.
    LF-3 consists of several piles of sand located along the eastern 
edge of a deep, steep sloping kettle depression.
Investigation and Feasibility Study Activities
    In 1985, this unauthorized disposal area was identified from an 
adjacent dirt road. It was reported to contain `household items, trash, 
construction debris, mattresses, furniture, and brush piles.' No 
evidence of hazardous waste (i.e., empty fuel or paint cans, or drums) 
was observed.
    On August 6, 1996, representatives from EPA, MassDEP, Army, and 
AFCEE conducted a site visit. At the time of the site visit, the area 
was observed to be overgrown with trees and shrubs. No evidence of 
waste, debris or contamination was visible.
    No feasibility study was conducted since past waste disposal was 
determined not hazardous and removed, and then replaced with clean 
sand.
Characterization of Risk and Decision Document Findings
    A No Further Action Decision Document was finalized in April 1997. 
No risks are present at LF-3 and no institutional controls are present.
Response Actions and Cleanup Standards
    In 1985, following the discovery of the unauthorized dumping, 
approximately two five-ton dump truck loads of debris was removed in a 
non-CERCLA action, and taken to the main base landfill.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Landfill-3 (U.S. Coast Guard) (LF-3 (CG))
Site Location and History
    LF-3 (CG), U.S. Coast Guard Rubble Landfill, is located in the 
Cantonment Area of the MMR, as shown in Figure 3. Its coordinates in 
Easting and Northing coordinates (NAD27) are: 871815, 259843; 872208, 
260744; 872648, 260310; 872235, 259424; and 871815, 259843. The area 
LF-3 (USCG) proposed for partial deletion includes all surface soils 
within these coordinates. LF-3 (CG) is a 13-acre area which was used 
for the disposal of demolition rubble and debris.
    The site received sand and gravel excavated from the construction 
of a dispensary building.
Investigation and Feasibility Study Activities
    A Phase I Records Search was completed in December 1986. The site 
was assessed and found to have no evidence of past disposal or spills 
of hazardous substances.
    No feasibility study was conducted since the records search 
concluded that the site did not impact the soil and groundwater.
Characterization of Risk and Decision Document Findings
    A No Further Action Decision Document was finalized in July 1991. 
No risks are present at LF-3 (CG) and no institutional controls are 
present.
Response Actions and Cleanup Standards
    No response actions have been taken and no cleanup standards have 
been set.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Landfill-5 (LF-5)
Site Location and History
    LF-5, Rubble Landfill at Veterans Administration Cemetery, is 
located in the Cantonment Area of the MMR, as shown in Figure 4. Its 
coordinates in Easting and Northing coordinates (NAD27) are: 854089, 
245737; 853972, 245339; 853768, 245007; 853211, 245502; 853293, 245758, 
and 854089, 245737. The area LF-5 proposed for partial deletion 
includes all surface soils within these coordinates.
    LF-5 is a ten-acre area which contained a concrete rubble and 
debris fill area.
Investigation and Feasibility Study Activities
    A Phase I Records Search was completed in December 1986. The site 
was assessed and found to have no evidence of past disposal or spills 
of hazardous substances.
    No feasibility study was conducted since the records search 
concluded that the landfill did not impact the soil and groundwater.
Characterization of Risk and Decision Document Findings
    A No Further Action Decision Document was finalized in August 1990. 
No risks are present at LF-5 and no institutional controls are present.

[[Page 41984]]

Response Actions and Cleanup Standards
    No response actions have been taken and no cleanup standards have 
been set.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Landfill-6 (LF-6)
Site Location and History
    LF-6, former U.S. Navy Construction Landfill, is located in the 
secure flightline area just west of Runway 5, as shown in Figure 5. Its 
coordinates in Easting and Northing coordinates (NAD27) are: 865512, 
240132; 865654, 240686; 865844, 240664; 865915, 240040, and 865512, 
240132.
    The area LF-6 proposed for partial deletion includes all surface 
soils within these coordinates.
    LF-6 is a four-acre area which contained a debris and concrete 
rubble fill area during expansion of the taxiway area and has been 
paved over.
Investigation and Feasibility Study Activities
    A Phase I Records Search was completed in December 1986. The site 
was assessed and found to have no evidence of past disposal or spills 
of hazardous substances.
    No feasibility study was conducted since the records search 
concluded that the landfill did not impact the soil and groundwater.
Characterization of Risk and Decision Document Findings
    A No Further Action Decision Document was finalized in August 1990. 
No risks are present at LF-6 and no institutional controls are present.
Response Actions and Cleanup Standards
    No response actions have been taken and no cleanup standards have 
been set.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
2. Investigation Findings and Response Action Summaries
    These sites have been investigated and have had actions (CERCLA 
and/or non-CERCLA) to reduce and/or eliminate any risk to human health 
and environment, and to prevent soil contamination from leaching into 
groundwater. Sites with structures that are part of the partial 
deletion are noted at the beginning of each of the descriptions. Table 
3 which is found in a tables appendix in the Deletion Docket contains a 
summary of the site names. There are a total of 44 sites in this group. 
Figures showing the location of the following sites are found in the 
figures appendix of the Deletion Docket.
Chemical Spill-1 (CS-1)
Site Location and History
    CS-1 is located on North Truck Road, as shown in Figure 4. Its 
coordinates in Easting and Northing coordinates (NAD27) are: 864286, 
242486; 860657, 244156; 860795, 244472; 861764, 243991; 861854, 244185; 
864463, 242886; and 864286, 242486. The area CS-1 proposed for partial 
deletion includes all surface soils and existing structures within 
these coordinates.
    CS-1 was active from 1941 to 1946, and was a 40-acre vehicle 
maintenance site with a motor pool, 11 vehicle maintenance buildings, 
and 11 gas stations. Other components of the site included 12 catch 
basins located within the paved motor pool areas, 11 leaching wells 
associated with the vehicle maintenance buildings, and the fenced 
perimeter that received surface runoff from the pavement.
Investigation and Feasibility Study Activities
    A site inspection at CS-1 was conducted in 1993 and led to two 
rounds of confirmational sampling in 1995 and 1999. The site inspection 
field work consisted of magnetometer surveys, surface and subsurface 
soil sampling, monitoring well installation, and groundwater sampling.
    The field work identified two USTs, confirmed removal of USTs near 
a taxiway, found metals (beryllium, chromium, lead, nickel, and 
thallium) in unfiltered groundwater samples, detected low 
concentrations of organic compounds in groundwater samples, and found 
contamination in catch basins and vehicle maintenance building leaching 
wells. Groundwater sampling in 1995 using the low flow purge and 
sampling technique showed that metals were below action levels at the 
site and earlier detections were due to suspended particulates. The 
site inspection recommended removal of existing USTs, vehicle 
maintenance building foundation slabs, work pits and associated soil, 
and catch basins. A groundwater sampling event in 1999 confirmed that 
there was no organic groundwater contamination present below the site.
    No feasibility study was conducted since response actions in the 
form of CERCLA removal actions were conducted as part of the basewide 
drainage structure removal program.
Characterization of Risk and Decision Document Findings
    Due to the response actions conducted under the drainage structure 
removal program in 1996, a No Further Action Decision Document was 
finalized in September 1999. No further risks are present at CS-1 and 
no institutional controls are present.
Response Actions and Cleanup Standards
    In 1985 and 1986, nine USTs were removed under non-CERCLA authority 
(i.e., no Action Memorandum was issued). In addition, as part of a 
basewide drainage structure CERCLA removal program, a total of 49 
drainage structures and associated contaminated soil (approximately 900 
tons) were removed in 1996. Two 5,000 gallon USTs inside the flight 
line area were identified and removed. Excavated soil was transported 
to an on-base asphalt batching facility.
    Given its location in an active portion of the MMR, structures 
related to airfield activities remain present within the former CS-1 
site.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Chemical Spill-1 (U.S.Coast Guard) (CS-1 (CG))
    Site Location and History
    Chemical Spill-1 (U.S. Coast Guard) (CS-1 (CG)) is also known as 
the U.S. Coast Guard Transmitter Station and is shown in Figure 3. Its 
coordinates in Easting and Northing coordinates (NAD27) are: 871486, 
261949; 871765, 261814; 871693, 241646; 871825, 261572; 871681, 261267; 
871107, 261544; 871292, 261850; 871406, 261794; and 871486, 261949. The 
area CS-1 (CG) proposed for partial deletion includes all surface soils 
and existing structures within these coordinates.
    CS-1 (CG) occupies a six-acre area where a building, a 4,000-gallon 
underground storage tank, and storage sheds are located. Between 1968 
and 1975, activities such as disposal of waste solvent on the ground 
and burial of used electrical components may have released contaminants 
into the environment. Drummed solvents were stored on-site; however the 
storage area has since been removed of drums and covered by an addition 
to the transmitter building.

[[Page 41985]]

Investigation and Feasibility Study Activities
    Site investigations were conducted to characterize the nature and 
distribution of contaminants at CS-1 (CG) between 1986 and 1993. A 
ground-penetrating radar survey identified anomalies in which 
electrical cabinets were found and removed. The SI and RI did not 
identify compounds at concentrations indicative of disposal of 
hazardous substances.
    No feasibility study was conducted since the site did not pose a 
risk.
Characterization of Risk and Decision Document Findings
    The investigations concluded that the site did not pose a risk. A 
Record of Decision was finalized in September 1995 and selected no 
further action with semi-annual groundwater monitoring for volatile 
organic compounds. In July 2004, after several years of monitoring 
data, an agreement was reached to cease groundwater monitoring as 
concentrations were below any action levels.
    No further risks are present at CS-1 (CG) and no institutional 
controls are present.
Response Actions and Cleanup Standards
    No response actions have been conducted, therefore no cleanup 
standards have been set.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Chemical Spill-2 (CS-2)
Site Location and History
    CS-2 is located in the Cantonment Area of the MMR, as shown in 
Figure 5. It is composed of two parcels. Their coordinates in Easting 
and Northing coordinates (NAD27) are: 863028, 237328; 863695, 238801; 
863882, 238716; 863205, 237242; and 863028, 237328 for parcel A; and 
863989, 240813; 864349, 240657; 864097, 240141; 863963, 240203; 864145, 
240589; 863929, 240685; and 863989, 240813 for parcel B. The area CS-2 
proposed for partial deletion includes all surface soils within these 
coordinates.
    CS-2 is a ten-acre area composed of three former motor pools and 
subsurface structures associated with a building. Each motor pool which 
was active from 1941 to 1946 originally consisted of a vehicle 
maintenance building, a gas station with a leaching well, one or two 
underground storage tanks, and one or two other buildings.
Investigation and Feasibility Study Activities
    CS-2 was identified as a potential site from a records search which 
was conducted in 1986. A sump investigation was conducted in 1991 which 
led to a site inspection in 1993 and groundwater sampling in 1999. The 
site inspection field work consisted of magnetometer surveys, surface 
and subsurface soil sampling, monitoring well installation, and 
groundwater sampling focusing on the presence or absence of 
contamination associated with the former motor pools and subsurface 
structures.
    The site inspection's magnetometer survey confirmed that five USTs 
associated with Blocks 2, 4 and 5 were removed. Sampling results for 
soil and groundwater did not identify significant organic or metals 
contamination from historical uses. A groundwater sampling event in 
1999 confirmed that there was no organic or metals contamination as the 
results were below action levels.
    No feasibility study was conducted since a CERCLA removal response 
action removed drainage structures which were potential contamination 
sources, and a risk evaluation determined that there were no risks to 
human health or the environment.
Characterization of Risk and Decision Document Findings
    Due to the response actions conducted under the drainage structure 
removal program in 1996, a No Further Action Decision Document was 
finalized in November 2000. No further risks are present at CS-2 and no 
institutional controls are present.
Response Actions and Cleanup Standards
    In the early to mid-1980s, five USTs associated with Blocks 2, 4 
and 5 were removed under non-CERCLA authority. In addition, as part of 
a CERCLA basewide drainage structure removal program, a total of 18 
drainage structures and associated contaminated soil were removed in 
1996. Excavated soil was transported to an on-base asphalt batching 
facility.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Chemical Spill-2 (U.S. Coast Guard) (CS-2 (CG))
    Site Location and History
    CS-2 (CG) is located within the secured flightline area of the MMR, 
as shown in Figure 5. The coordinates in Easting and Northing 
coordinates (NAD27) are: 866410, 244042; 867591, 244186; 867664, 
243676; 867263, 243637; 867313, 243185; 867049, 243157; 867000, 243604; 
866463, 243551; and 866410, 244042. The area CS-2 (CG) proposed for 
partial deletion includes all surface soils and existing structures 
within these coordinates.
    CS-2 (CG) is a 16-acre area which featured U.S. Coast Guard Air 
Station Hangars 3170 and 3172, a former auto hobby shop in Building 
3161, a former Ground Support Shop in Building 3162, and administrative 
facilities in Buildings 3163 and 3164.
Investigation and Feasibility Study Activities
    CS-2 (CG) was investigated several times between 1989 and 1995 with 
additional groundwater and sediment sampling in 1999. Investigation 
activities included a geophysical survey, soil gas survey, test 
pitting, soil borings, installation of monitoring wells, and collection 
and analysis of soil and sediment samples. Results of the site 
investigations indicated minor releases of fuel, polychlorinated 
biphenyls, and inorganic compounds in the area. However, based on the 
results of a risk evaluation, unacceptable human health and ecological 
risks are not expected from exposures to soil and groundwater.
    No feasibility study was conducted since a CERCLA response action 
removed drainage structures which were potential contamination sources, 
and a risk evaluation determined that there were no risks to human 
health or the environment.
Characterization of Risk and Decision Document Findings
    Due to the response actions conducted under the drainage structure 
removal program in 1996, a No Further Action Decision Document was 
finalized in November 2000. No further risks are present at CS-2 (CG) 
and no institutional controls are present.
Response Actions and Cleanup Standards
    In 1996, a leaching well and leach field associated with Building 
3170 were removed in a CERCLA removal action as part of a basewide 
drainage structure removal program. A dry well located west of Building 
3162 was replaced in 1992 and contaminated sediments were removed. In 
April 1993, an 8,000 gallon underground storage tank was removed in a 
non-CERCLA action.

[[Page 41986]]

Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Chemical Spill-3 (CS-3)
Site Location and History
    CS-3, South Truck Road Motor Pool, is located in the southern 
portion of the MMR, as shown in Figure 5. Its coordinates in Easting 
and Northing coordinates (NAD27) are: 858508, 238559; 858508, 238564; 
861531, 237143; 851364, 236782; 860282, 237287; 860004, 236700; 859113, 
237123; 859391, 237706; 858339, 238201; and 858508, 238559. The area 
CS-3 proposed for partial deletion includes all surface soils and 
existing structures within these coordinates.
    CS-3 is a 45-acre area which featured a motor pool which was used 
by various agencies (U.S. Army from 1940 to 1946; Air National Guard 
Civil Engineering from 1950 to 1973; and U.S. Air Force from 1955 to 
1973).
Investigation and Feasibility Study Activities
    Following a preliminary assessment in 1986, CS-3 was investigated 
and characterized during two site inspections in 1988 and 1989, and a 
groundwater sampling program in 1999. Investigation activities 
included: a soil gas survey; excavation of test pits; installation of 
test boring and monitoring wells; and soil and groundwater sampling and 
analysis. In 1991, sumps at CS-3 were investigated as part of a 
basewide investigation program.
    Soil and groundwater sampling detected minimal contamination. 
Results of the human health and ecological risk assessments suggest 
that unacceptable levels of risk are not anticipated.
    No feasibility study was conducted since response actions in the 
form of non-CERCLA and CERCLA removal actions were conducted and the 
investigations concluded that the site did not pose a risk to human 
health or the environment.
Characterization of Risk and Decision Document Findings
    The risk assessment concluded no significant risk to human health 
and environment. A No Further Action Decision Document was finalized in 
June 2000. No further risks are present at CS-3 and no institutional 
controls are present.
Response Actions and Cleanup Standards
    Several response actions have been conducted at the site. In 1985, 
six underground storage tanks were removed in a non-CERCLA action. In 
1996, six underground drainage structures were removed in a CERCLA 
action, and one was abandoned in place during a base-wide drainage 
structural removal program.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Chemical Spill-3 (U.S. Coast Guard) (CS-3 (CG))
Site Location and History
    CS-3 (CG) occupies approximately two acres in the south central 
portion of the MMR, as shown in Figure 4. Its coordinates in Easting 
and Northing coordinates (NAD27) are: 855290, 242137; 855401, 242259; 
855631, 242260; 855777, 242169; 855597, 242919; and 855290, 242137. The 
area CS-3 (CG) proposed for partial deletion includes all surface soils 
and existing structures within these coordinates.
    CS-3 (CG) was the former location of an automobile service and 
gasoline station. The site is currently occupied by a gasoline station, 
convenience store, and garden shop. Activities that may have introduced 
hazardous substances to this area occurred from 1951 to 1979.
Investigation and Feasibility Study Activities
    A records review for CS-3 (CG) was conducted in 1986. A remedial 
investigation was conducted during 1991. Surface and subsurface soil 
samples were collected from various locations such as former USTs and 
the leaching well.
    In both soil and groundwater, there were sporadic detections of 
VOCs (1,2-dichloromethane, toluene, xylenes, and ketones), TPH, SVOCs 
(i.e., bis-2(ethylhexyl)phthalate, benzo(a)pyrene, 
benzo(b)fluoranthene, trimethylbenzenes (in groundwater only)), 
pesticides (i.e., chlordane, dichlorodiphenyltrichloroethane (DDT)) and 
metals (in groundwater only) (i.e., arsenic, manganese, lead, and 
thallium). Since soil and groundwater detections were detected 
sporadically and below action levels, it was concluded that widespread 
disposal of hazardous waste has not occurred at CS-3 (CG). Considering 
that detections were below background concentrations and action levels, 
the human health and ecological risk assessments determined that the 
site does not pose a risk.
    No feasibility study was conducted since response actions in the 
form of non-CERCLA and CERCLA removal actions were conducted and the 
remedial investigation concluded that the site did not pose a risk to 
human health or the environment.
Characterization of Risk and Decision Document Findings
    The risk assessment concluded no significant risk to human health 
and environment. A No Action Record of Decision was finalized in 
September 1998. No further risks are present at CS-3 (CG) and no 
institutional controls are present.
Response Actions and Cleanup Standards
    In 1985, an underground storage tank was found to be leaking and a 
non-CERCLA removal action was conducted to remove the UST and 
associated petroleum contaminated soil. In 1994, three former gasoline 
USTs were removed in a non-CERCLA action and replaced with aboveground 
storage tanks. Approximately 340 cubic yards of contaminated soil was 
removed during the UST removal. In 1996, sediment and sludge inside a 
leaching well was removed in a CERCLA removal action, however the 
leaching well and associated discharge pipes were not removed because 
they are partly buried behind Building 5202 and it was determined that 
the leaching well and discharge pipes did not pose a future source of 
soil and/or groundwater contamination.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Chemical Spill-4 (CS-4)
Site Location and History
    Chemical Spill-4 (CS-4) is located in the southern section of the 
MMR within the outline of the CS-10 groundwater plume as shown on 
Figure 4. CS-4 consists of two parcels whose coordinates in Easting and 
Northing coordinates (NAD27) are: 859012, 243969; 859939, 243607; 
860065, 243369; 859920, 243079; 859234, 243403; and 859012, 243969 for 
parcel A; 858358, 241466; 858018, 241673; 858913, 243535; 859230, 
243395; and 858358, 241466 for parcel B. The area CS-4 proposed for 
partial deletion includes all surface soils and structures within these 
coordinates.

[[Page 41987]]

    CS-4 is a 28 acre area to the northeast of West Truck Road and 
Gaffney Road which contained a former gasoline station, and is an area 
south of Gaffney Road which contained a former storage yard of the 
Defense Property Disposal Office which operated from 1965 to 1985. 
Military vehicles were maintained by the U.S. Army from 1940 to 1946 
and by the U.S. Air Force from 1955 to 1973.
Investigation and Feasibility Study Activities
    Initial investigations in 1986 and 1988 identified petroleum-
related and chlorinated solvent contaminated soil and sediment in the 
area known as West Truck Road Motorpool which is South of Truck and 
Gaffney Roads. An engineering evaluation/cost analysis report to 
address this contaminated soil in the West Truck Road Motorpool area 
was prepared in May 1993.
    Investigations for the area to the northeast of West Truck and 
Gaffney Roads were conducted in 1994, 1996, and 2001. The investigation 
activities included: ten test pits; surface and surface soil samples; 
installation of one monitoring well; and groundwater samples.
    Investigations indicated that pesticides and inorganics were 
detected in soil and required action. Shallow groundwater sample 
results did not indicate contamination requiring action.
    An engineering evaluation/cost analysis report was conducted to 
evaluate removal action alternatives to address the contaminated soil 
in the area to the northeast of West Truck Road and Gaffney Road.
Characterization of Risk and Decision Document Findings
    A non-time critical removal Action Memorandum for the West Truck 
Road Motorpool documented the soil removal and treatment in 1994. 
Investigations concluded that soil which was contaminated with volatile 
organic compounds had a major source of the CS-4 groundwater plume and 
was a continuing threat to the groundwater due to leaching.
    The Site Inspection Report concluded that: dieldrin, chromium, 
cadmium, cyanide, lead, and zinc posed a human health and ecological 
risk. An Action Memorandum for CS-4 was issued in January 2002.
Response Actions and Cleanup Standards
    By 1984, six 5,000 gallon underground storage tanks were removed in 
non-CERCLA actions. In 1994, approximately 11,000 cubic yards (13,235 
tons) of contaminated soil from the South Truck Road Motor Pool was 
removed in a CERCLA non-time critical removal action. The soil was 
treated on-base in a low temperature thermal desorption system. The 
removal action cleanup standards were: 0.005 mg/kg for benzene 
(leaching to groundwater); 0.005 mg/kg for trichloroethylene (leaching 
to groundwater); and 0.005 mg/kg for perchloroethylene (leaching to 
groundwater). A removal action report was issued in September 1999.
    In 2002, approximately 2,600 cubic yards of contaminated soil from 
the area northeast of West Truck Road and Gaffney Road was removed in a 
CERCLA removal action and transported off-site for treatment and/or 
disposal. During this removal action, a 500-gallon underground storage 
tank with 275 gallons of diesel fuel were discovered and also removed. 
The removal action cleanup standards were: 99 mg/kg for Lead 
(ecological); 68 mg/kg for Zinc (ecological); 1.0 mg/kg for Arochlor 
1260 (human health); 0.227 mg/kg for 4,4'-DDE (ecological); 0.25 mg/kg 
for 4,4'-DDT (ecological); 0.035 mg/kg for Dieldrin (ecological); 200 
mg/kg for Total Petroleum Hydrocarbons; 1000 mg/kg (0-15 ft bgs)/5,000 
mg/kg (greater than 15 ft bgs) for C9-C18 
Aliphatic Hydrocarbons; 2,500 mg/kg (0-15 ft bgs)/5,000 mg/kg (greater 
than 15 ft bgs) for C19-C36 Aliphatic 
Hydrocarbons; 200 mg/kg (0-15 ft bgs)/200 mg/kg (greater than 15 ft 
bgs) for C11-C22 Aromatic Hydrocarbons; 100 mg/kg 
(0-15 ft bgs)/500 mg/kg (greater than 15 ft. bgs) for C5-
C8 Aliphatic Hydrocarbons; 1,000 mg/kg (0-15 ft bgs)/5,000 
mg/kg (greater than 15 ft bgs) for C9-C12 
Aliphatic Hydrocarbons; and 100 mg/kg (0-15 ft. bgs)/100 mg/kg (greater 
than 15 ft bgs) for C9-C10 Aromatic Hydrocarbons. 
The removal action for CS-4 was documented in a removal action report 
which was issued in September 2005.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Chemical Spill-4 (U.S. Coast Guard)/Fuel Spill-1 (U.S. Coast Guard) 
(CS-4 (CG)/FS-1 (CG))
Site Location and History
    Chemical Spill-4 U.S. Coast Guard/Fuel Spill-1 U.S. Coast Guard 
(CS-4 (CG)/FS-1 (CG)) is located in the southern section of the MMR, as 
shown in Figure 5 within the outline of the CS-10 groundwater plume. 
CS-4 (CG)/FS-1 (CG) coordinates in Easting and Northing coordinates 
(NAD27) are: 867997, 238955; 868394, 238660; 868369, 238629; 868310, 
238672; 868211, 238546; 868145, 238601; 868132, 238555; 867975, 238349; 
867671, 238576; and 867997, 238955. The area CS-4 (CG)/FS-1 (CG) 
proposed for partial deletion includes all surface soils and structures 
within these coordinates.
    CS-4 (CG)/FS-1 (CG) is a five-acre area which featured Hangar 
Building 128 and its surrounding area. From 1955 to 1970, Hangar 128 
was used to maintain U.S. Air Force EC-121 (i.e., Super-Constellation) 
aircraft. During that time, unknown quantities of solvents (i.e., 
toluene and TCE) and aviation gasoline washed into the stormwater 
drainage system. From 1976 to 1988, Hangar was used by the USCG to 
maintain fixed-wing aircraft. In 1978, two spills occurred at the 
hangar. An aviation gasoline spill of approximately 1,000 gallons 
occurred on the tarmac on the northern side of the hangar and was 
washed into the stormwater drainage system.
    The second aviation gasoline spill of approximately 250 gallons 
occurred on the southern side of the hangar and was washed onto 
surrounding soil.
Investigation and Feasibility Study Activities
    The site was first investigated in 1993, then in 1995, a follow-up 
investigation occurred. The soil and groundwater investigation focused 
on the areas of the reported spills and an acid leaching pit on the 
western side of the hangar. Groundwater did not require action, however 
contaminated soil was recommended for a removal action.
    A site investigation was completed in 1993 and identified 
pesticides as the contaminant of concern as there were no herbicides 
detected. The investigation activities included: ten test pits; surface 
and surface soil samples; installation of one monitoring well; and 
groundwater samples.
    Investigations indicated that pesticides and inorganics were 
detected in soil and required action. Groundwater sample results did 
not indicate contamination requiring action.
    An engineering evaluation/cost analysis was conducted to evaluate 
removal action alternatives.
Characterization of Risk and Decision Document Findings
    The Site Inspection Report concluded that: Dieldrin, Chromium, 
Cadmium, cyanide, lead, and zinc posed a human health and ecological 
risk. A multi-site Action Memorandum with CS-4 (CG)/FS-1 (CG) as one of 
the sites was issued in 1999.

[[Page 41988]]

Response Actions and Cleanup Standards
    By August 2001, approximately 318 cubic yards of contaminated soil 
was excavated and transported off-site for disposal. The removal action 
cleanup standards were: 0.035 mg/kg for Dieldrin (ecological); 19 mg/kg 
for Chromium (ecological); 1.8 mg/kg for Cadmium (ecological); 1.0 mg/
kg for cyanide (background); 99 mg/kg for lead (ecological); 68 mg/kg 
for zinc (ecological). The removal action for CS-4 (CG)/FS-1 (CG) was 
documented in a removal action report which was issued in April 2004.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Chemical Spill-5 (CS-5)
Site Location and History
    Chemical Spill-5 (CS-5) is located in the Cantonment section of the 
MMR, as shown in Figure 4, within the footprint of the CS-10 
groundwater plume. CS-5 coordinates in Easting and Northing coordinates 
(NAD27) are: 857269, 242122; 857465, 242403; 857647, 242423; 857839, 
242306; 857906, 242189; 857850, 242105; 857797, 242082; 857664, 241877; 
and 857269, 242122. The area CS-5 proposed for partial deletion 
includes all surface soils and structures within these coordinates.
    CS-5 is a five-acre area adjacent to Building 3461 which was used 
as a weapons repair shop from 1941 to 1946, and a refueler maintenance 
and spray paint shop from 1955 to 1967. Releases from the building's 
activities (i.e., oils, solvents, paints, fuel, etc) may be contributed 
to site contamination.
Investigation and Feasibility Study Activities
    A soil, sediment, and groundwater investigation was completed in 
October 1993. In 1996, as part of a basewide drainage structure removal 
program, a leaching well at CS-5 was removed, and a wash rack was 
decontaminated and abandoned in place by concrete. Groundwater did not 
require action, however contaminated soil was recommended for a removal 
action.
    Investigations were conducted in 1993 and 1995, and identified 
polychlorinated biphenyl soil contamination which required cleanup.
    A preliminary assessment was completed in 1999 and identified 
petroleum-contaminated soil requiring action. In the spring of 2000, a 
non-CERCLA removal action was conducted, then the site was further 
investigated in 2001.
    Seventeen additional surface soil and subsurface soil samples were 
collected at the area of the previous excavation as well as debris 
piles at the site. The site investigation and risk evaluation for human 
health and ecological risk concluded that a removal action was needed 
to address metals, petroleum and polynuclear-aromatic hydrocarbon 
contamination. Prior to the removal action, an additional 95 soil 
samples were collected at 47 locations.
    An engineering evaluation/cost analysis was conducted to evaluate 
removal action alternatives.
Characterization of Risk and Decision Document Findings
    The Site Inspection Report concluded that Benzo(a)anthracene, 
Benzo(b)anthracene, Benzo(k)anthracene, Benzo(k)anthracene, 
Benzo(g,h,i)anthracene, Benzo(a)pyrene, Chrysene, 
Dibenzo(a,h)anthracene, Fluoranthene, Indeno(1,2,3-c,d)pyrene, and 
Phenanthrene posed a human health and ecological risk. A multi-site 
Action Memorandum with CS-5 as one of the sites was issued in 1999.
Response Actions and Cleanup Standards
    By May 2001, approximately 86 cubic yards of contaminated soil was 
excavated and transported off-site for disposal. The removal action 
cleanup standards were: 5 mg/kg for Benzo(a)anthracene; 5 mg/kg for 
Benzo(b)anthracene; 5 mg/kg for Benzo(k)anthracene; 5 mg/kg for 
Benzo(k)anthracene; 5 mg/kg for Benzo(g,h,i)anthracene; 5 mg/kg for 
Benzo(a)pyrene; 0.625 mg/kg for Chrysene; 5 mg/kg for 
Dibenzo(a,h)anthracene; 7.81 mg/kg for Fluoranthene; 5 mg/kg for 
Indeno(1,2,3-c,d)pyrene; and 0.625 mg/kg for Phenanthrene. The removal 
action for CS-5 was documented in a removal action report which was 
issued in April 2004.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Chemical Spill-6/Fuel Spill-22 (CS-6/FS-22)
    Site Location and History
    CS-6/FS-22 is a nine-acre area located in Cantonment area of MMR, 
as shown in Figure 4. The coordinates for CS-6 in Easting and Northing 
coordinates (NAD27) are: 860916, 237702; 861142, 238157; 861650, 
237928; 861426, 237463; and 860916, 237702. The coordinates for FS-22 
in Easting and Northing coordinates (NAD27) are: 862327, 247882; 
862853, 247110; 862794, 246747; 862334, 247011; 861977, 247666; 861907, 
248078; and 862327, 247882. The area CS-6/FS-22 proposed for partial 
deletion includes all surface soils and existing structures at CS-6 
within these coordinates.
    CS-6/FS-22 includes Building 754 and the area immediately 
surrounding it which has been used as a vehicle maintenance shop since 
1967.
Investigation and Feasibility Study Activities
    CS-6/FS-22 was identified in a records search in 1986. CS-6 
includes structures and features functioned as three waste discharge 
points including a former oil/water separator, a leaching well, and 
paved areas draining to the drainage structures or site perimeters. FS-
22 is a drainage ditch located south of and adjacent to CS-6 where in 
1984 a 4,500 gallon fuel spill resulted in a discharge of fuel to the 
drainage ditch.
    Subsurface soil samples were collected during a sump investigation 
program and confirmed that the drainage structures have not caused any 
soil contamination since results were below action limits. Groundwater 
immediately downgradient of these structures was also not impacted.
    A Site Inspection investigation was conducted between November 1992 
and March 1993. The investigation included surface soil sampling and 
subsurface soil sampling at four areas, and groundwater sampling at 
upgradient and downgradient locations. A follow-up investigation was 
conducted in October 1994. Additional groundwater sampling in October 
1998 supported that the site did not impact groundwater quality. 
Sampling in the drainage ditch (FS-22) confirmed the presence of fuel 
constituents but concentrations were below action levels.
    No feasibility study was conducted since response actions in the 
form of a non-CERCLA spill response and soil removal action, 
investigation data, and a tiered human health and ecological risk 
evaluation support no further action.
Characterization of Risk and Decision Document Findings
    A No Further Action Decision Document was finalized in April 2000. 
No risks requiring action are present at CS-6/FS-22 and no 
institutional controls are required.

[[Page 41989]]

Response Actions and Cleanup Standards
    In 1984, a 4,500 gallon fuel spill occurred in a drainage ditch 
associated with FS-22. All free product was removed and visibly 
contaminated soil was excavated in a non-CERCLA action. In 1989, piping 
between an oil/water separator and a leaching well was sealed. The 
leaching well was filled with sand.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Chemical Spill-6 (U.S. Coast Guard) (CS-6 (CG))
Site Location and History
    CS-6 (CG) is located in the south-central portion of the MMR, as 
shown in Figure 4. Its coordinates in Easting and Northing coordinates 
(NAD27) are: 854635, 241470; 854816, 241814; 855350, 241395; 855074, 
241085; 855015, 241118; and 854635, 241470. The area CS-6 (CG) proposed 
for partial deletion includes all surface soils and existing structures 
within these coordinates.
    CS-6 (CG) is a six-acre area which includes U.S. Coast Guard 
Building 5215 in which maintenance shops have been housed since 1973. 
Prior to 1973, the building was used as a Noncommissioned Officers 
Club.
Investigation and Feasibility Study Activities
    CS-6 (CG) was identified in a records search in 1986. CS-6 (CG) 
consists of the U.S. Coast Guard Building 5215 which houses maintenance 
shops. Wastes generated included oils, hydraulic fluid, and cleaning 
solvents. A 2,000 gallon underground storage tank and two aboveground 
storage tanks were noted at the site in an investigation in 1989.
    Surface soil results collected in 1989 indicated minor fuel spills 
in the area around the former above ground storage tanks. Subsequent 
soil sampling in 1999 confirmed that the soil removal was complete. 
Groundwater sampling results show that site activities have not 
adversely affected the groundwater quality.
    No feasibility study was conducted since response actions in the 
form of non-CERCLA removal actions and investigation data support no 
further action.
Characterization of Risk and Decision Document Findings
    A No Further Action Decision Document was finalized in June 2000. 
No further risks are present at CS-6 (CG) and no institutional controls 
are present.
Response Actions and Cleanup Standards
    In September 1990, approximately six cubic yards of contaminated 
soil was removed in a non-CERCLA action after the removal of two above 
ground storage tanks. In May 1993, a 2,000 gallon UST was removed in a 
non-CERCLA action.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Chemical Spill-8/Fuel Spill-21 (CS-8/FS-21)
Site Location and History
    CS-8/FS-21 are located next to each other in a three-acre area 
which is located in the Cantonment portion of the MMR, as shown in 
Figure 5. CS-8 coordinates in Easting and Northing coordinates (NAD27) 
are: 862819, 237371; 862971, 237301; 862846, 237023; 862693, 237087; 
and 862819, 237371. FS-21 coordinates in Easting and Northing 
coordinates (NAD27) are: 862970, 237301; 863140, 237224; 862980, 
236868; 862813, 236946; and 862970, 237301. The area CS-8/FS-21 
proposed for partial deletion includes all surface soils and existing 
structures within these coordinates.
    CS-8 is known as the Operational Motor Pool. It included an active 
and an abandoned concrete wash pad, a cesspool, and a 12,500 gallon 
diesel-fuel UST and pump island located west of a vehicle repair shop. 
The vehicle repair shop ceased operations in 1998. FS-21 is the former 
location of a 5,000 gallon motor vehicle gasoline UST known as Current 
Product Tank No. 90. Wastes generated included waste solvents, oils, 
battery electrolyte, and fuels.
Investigation and Feasibility Study Activities
    CS-8/FS-21 was initially identified in a records search in 1986. 
Site investigations were developed to evaluate whether past maintenance 
activities, waste-disposal methods, and potential leaks from USTs posed 
a risk and required action. Investigation efforts, which included a 
soil-gas survey, ten test pits, six soil boring, four monitoring wells, 
soil samples, and groundwater samples, showed no significant 
contamination of soil or groundwater. Investigation confirmed that the 
UST removals were complete. Risks to human health and the environment 
from exposure to detections were below levels requiring action.
    No feasibility study was conducted since response actions in the 
form of non-CERCLA removal actions and investigation data support no 
further action.
Characterization of Risk and Decision Document Findings
    A No Further Action Decision Document was finalized in October 
2000. No risks requiring action are present at CS-8/FS-21, and no 
institutional controls are present.
Response Actions and Cleanup Standards
    In 1988, a 5,000 gallon motor vehicle gasoline UST and a 12,500 
gallon diesel fuel UST were removed in a non-CERCLA action and replaced 
with double-walled tanks of the same size. The 5,000 gallon UST and the 
12,500 gallon UST were removed in a non-CERCLA action in 1996 and 1999, 
respectively. In 1996, a cesspool was removed in a CERCLA removal 
action as part of a basewide drainage structure removal program.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Chemical Spill-8 (U.S. Coast Guard) (CS-8 (CG))
Site Location and History
    CS-8 (CG) is located in the northern section of the MMR, as shown 
in Figure 3. CS-8 (CG) is a collection of three parcels whose 
coordinates in Easting and Northing coordinates (NAD27) are: 871484, 
261883; 871510, 261938; 871570, 261911; 871544, 261854; and 871484, 
261883 for parcel A; 872536, 261718; 872655, 261718; 872655, 261582; 
872536, 261582; and 872536, 261718 for parcel B; 872547, 260877; 
872645, 260877; 872645, 260751; 872547, 260751; and 872547, 260877 for 
parcel C. The area CS-8 (CG) proposed for partial deletion includes all 
surface soils within these coordinates.
    CS-8 (CG) is a less than one-acre area (400 square feet) known as 
the Abandoned Radio Cabinet Area on the Coast Guard Transmitter Station 
property near the eastern boundary of the MMR.

[[Page 41990]]

Investigation and Feasibility Study Activities
    CS-8 (CG) was investigated with a Preliminary Assessment in 1999 
and a Site Investigation (SI) in 2001. The SI included the collection 
of soil samples which identified soil contamination within the vicinity 
of the radio cabinet. Human health and ecological risks were evaluated 
and the SI concluded that a removal action was necessary to address 
these risks.
    An engineering evaluation/cost analysis was conducted to evaluate 
removal action alternatives.
Characterization of Risk and Decision Document Findings
    The Site Inspection Report concluded that cadmium, manganese and 
PCB-1254 posed a human health and ecological risk. An Action Memorandum 
documenting this non-time critical removal action was finalized in 
August 2002.
Response Actions and Cleanup Standards
    In December 2002, approximately 25 cubic yards of contaminated soil 
was removed and transported off-site for disposal in a CERCLA removal 
action. The removal action cleanup standards were: 1.8 mg/kg for 
cadmium; 274 mg/kg for manganese; and 1 mg/kg for PCB-1254 (Arochlor 
1254). The removal action for CS-8 (USCG) was documented in a removal 
action report which was issued in August 2003.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Chemical Spill-9 (CS-9)
Site Location and History
    CS-9 is located in the Cantonment portion of the MMR adjacent to 
the Landfill-1 source area, as shown in Figure 4. Its coordinates in 
Easting and Northing coordinates (NAD27) are: 856956, 244929; 857918, 
246417; 858598, 245943; 858240, 245412; 858123, 245484; 857508, 244681; 
and 856956, 244929. The area CS-9 proposed for partial deletion 
includes all surface soils within these coordinates.
    CS-9 is a 22-acre area which featured a former motor pool and 
vehicle maintenance area which was used from 1941 to 1946 and had five 
leaching wells, four sumps, and three underground storage tanks.
Investigation and Feasibility Study Activities
    A site investigation was conducted in 1993. Fifteen test pits were 
excavated and stockpiled at a separate site. Soil and sump sediment 
samples were collected. Two monitoring wells were installed to evaluate 
the groundwater quality. The subsurface soil and groundwater data 
indicated that motor pool-related compounds have not migrated 
vertically within the site. Groundwater results from the investigation 
showed low levels of fuel- and solvent type compounds that are likely 
migrating from upgradient LF-1 rather than CS-9. Results of risk 
evaluations suggested no unacceptable risks to human health or the 
environment.
    No feasibility study was conducted since response actions in the 
form of non-CERCLA removal actions and investigation data support no 
further action.
Characterization of Risk and Decision Document Findings
    A No Further Action Decision Document was finalized in June 1998. 
No further risks are present at CS-9 and no institutional controls are 
present.
Response Actions and Cleanup Standards
    Three USTs were removed in a non-CERCLA action in 1985. In March 
1994, sump structures and contents, and contaminated soil were removed 
in a CERLCA removal action. Approximately 3,663 tons of soil was 
treated between August and October 1995 at a low-temperature thermal 
treatment unit which was located at MMR for another project.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Chemical Spill-11 (CS-11)
Site Location and History
    Chemical Spill-11 (CS-11) is located in the southern section of the 
MMR, as shown in Figure 4 within the outline of the CS-10 groundwater 
plume. CS-11 coordinates in Easting and Northing coordinates (NAD27) 
are: 859381, 238984; 859576, 238898; 859476, 238677; 859280, 238764; 
and 859381, 238984. The area CS-11 proposed for partial deletion 
includes all surface soils and structures within these coordinates.
    CS-11 is a one-acre area associated with Building 1116 which was 
used for the storage and mixing of pesticides and herbicides from 1970 
to 1983. Mixing of pesticides occurred on an asphalt concrete pad on 
the eastern side of Building 1116.
Investigation and Feasibility Study Activities
    A site investigation was completed in 1993 and identified 
pesticides as the contaminant of concern as there were no herbicides 
detected. The investigation activities included: Ten test pits; surface 
and surface soil samples; installation of one monitoring well; and 
groundwater samples. Investigations indicated that pesticides and 
inorganics were detected in soil and required action.
    Groundwater sample results did not indicate contamination requiring 
action.
    An engineering evaluation/cost analysis was conducted to evaluate 
removal action alternatives.
Characterization of Risk and Decision Document Findings
    The Site Inspection Report concluded that: Dieldrin, Chromium, 
Cadmium, cyanide, lead, and zinc posed a human health and ecological 
risk. A multi-site Action Memorandum with CS-11 as one of the sites was 
issued in June 1999.
Response Actions and Cleanup Standards
    In 1983, when the pesticide shop was closed, approximately 200 
pounds of pesticides were removed in a non-CERCLA action from Building 
1116. In 2002, approximately 1,157 cubic yards of contaminated soil was 
removed in a CERCLA removal action and transported off-site for 
treatment and/or disposal. The removal action cleanup standards were: 
0.035 mg/kg for Dieldrin (ecological); 19 mg/kg for Chromium 
(ecological); 1.8 mg/kg for Cadmium (ecological); 1.0 mg/kg for cyanide 
(background); 99 mg/kg for lead (ecological); 68 mg/kg for zinc 
(ecological). The removal action for CS-11 was documented in a removal 
action report which was issued in April 2004.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Chemical Spill-14 (CS-14)
Site Location and History
    CS-14 is located in the southeastern portion of MMR within the 
secure flightline area, as shown in Figure 5. Its coordinates in 
Easting and Northing coordinates (NAD27) are: 867564, 238219; 867679, 
238124; 867451, 237847; 867335, 237946; and 867564, 238219. The area 
CS-14 proposed for

[[Page 41991]]

partial deletion includes all surface soils and structures within these 
coordinates.
    CS-14 is a one-acre area associated with subsurface structures 
between Building 156 and Hangar 158. These structures received liquid 
waste such as solvents and petroleum products from these buildings.
Investigation and Feasibility Study Activities
    CS-14 was identified in a records search as a site requiring 
additional investigation based on site history in 1986. Field 
investigations were conducted between 1989 and 1992, and additional 
groundwater samples were collected in 1999. Investigation activities 
included a soil gas survey, installation and multiple sampling of three 
groundwater wells, advancement of 12 Terraprobe borings and two test 
trenches, and soil sampling and analysis. Exploration locations were 
based on the findings of the records search and the observations of 
conditions.
    Soil sampling and analysis was conducted during the completion of 
test pits, soil borings, and monitoring wells. There were no detections 
of surface or subsurface soil samples above action levels for VOCs, 
SVOCs, Pesticides, PCBs, and inorganics. Groundwater sampling also did 
not identify any actionable contamination as results were below action 
levels.
    No feasibility study was conducted since response actions in the 
form of a CERCLA removal action were conducted as part of the basewide 
drainage structure removal program, and no human health or ecological 
risk was identified in a risk evaluation.
Characterization of Risk and Decision Document Findings
    Due to the non-CERCLA response actions and the investigation 
findings of no risk, a No Further Action Decision Document was 
finalized in June 2000. No further risks are present at CS-14 and no 
institutional controls are present.
Response Actions and Cleanup Standards
    In 1996, the leaching pit area was removed in a CERCLA removal 
action as part of a basewide drainage structure removal program. The 
oil/water separator associated with Hangar 158 and the sand/gas trap 
associated with Building 156 was abandoned in 1989. The oil/water 
separator was decontaminated in place and filled with concrete. 
Building 156 continues to be used as an aircraft parts maintenance 
facility with wastes managed according to the appropriate regulations. 
Hangar 158 continues to be used as an aircraft maintenance facility.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Chemical Spill-15 (CS-15)
Site Location and History
    CS-15, Former Run-up Area, is located on the southeast side of MMR, 
on Reilly Road, as shown in Figure 5. Its coordinates in Easting and 
Northing coordinates (NAD27) are: 869859, 236971; 870462, 237541; 
870880, 237294; 870809, 237171; 870285, 236746; 870193, 236734; 870112, 
236759; and 869859, 236971. The area CS-15 proposed for partial 
deletion includes all surface soils within these coordinates.
    CS-15 was used for jet engine testing from 1949 until 1985. This 
nine-acre site consisted for former Building 202, an outside testing 
stand, former Building 204, and enclosed testing stand, and the area 
surrounding these buildings.
Investigation and Feasibility Study Activities
    CS-15 was identified in a records search as a site requiring 
additional investigation based on site history in 1986. Four field 
investigations were conducted between 1989 and 1995, and additional 
groundwater samples were collected in April 2000. Exploration locations 
were based on the findings of the records search and the observations 
of conditions. Three monitoring wells were installed.
    Soil sampling and analysis was conducted during the completion of 
test pits, soil borings, and monitoring wells. There were no detections 
of surface or subsurface soil samples above action levels for VOCs, 
SVOCs, Pesticides, PCBs, and inorganics. Groundwater sampling also did 
not identify any actionable contamination.
    No feasibility study was conducted since response actions in the 
form of a CERCLA removal actions were conducted as part of the basewide 
drainage structure removal program.
Characterization of Risk and Decision Document Findings
    Due to the response actions conducted under the drainage structure 
removal program in 1996, a No Further Action Decision Document was 
finalized in December 2001. No further risks are present at CS-15 and 
no institutional controls are present.
Response Actions and Cleanup Standards
    In 1994, three hanging transformers west of Building 204 were 
removed when Buildings 202 and 204 were demolished. In 1996, a gasoline 
trap east of Building 204 was removed as part of a CERCLA removal 
action known as the basewide drainage structure removal program. During 
the removal of the gas trap, approximately 74 cubic yards of 
contaminated soil was removed and treated at an on-base asphalt 
batching facility. There are no remaining structures at CS-15.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Chemical Spill-16/Chemical Spill-17/Drum Disposal Operable Unit (CS-16/
CS-17/DDOU)
Site Location and History
    CS-16/CS-17/DDOU is located in the southern section of the MMR, as 
shown in Figure 4. CS-16/CS-17 coordinates in Easting and Northing 
coordinates (NAD27) are: 859039, 234905; 860401, 235488; 861416, 
235483; 861432, 235364; 862700, 234602; 862795, 234287; 862364, 233663; 
and 859039, 234905. The area CS-16/CS-17 proposed for partial deletion 
includes all surface soils and structures within these coordinates.
    Drum Disposal Operable Unit (DDOU) is located in the southern 
section of the MMR within the boundaries of CS-16/CS-17, as shown in 
Figure 4, near the southeastern boundary. DDOU coordinates in Northing 
and Easting coordinates (NAD27) are: 862171, 244565; 862239, 234517; 
862283, 234583; 862447, 234461; 862328, 234283; 862098, 234456; and 
862171, 234565. The area DDOU proposed for partial deletion includes 
all surface soils within these coordinates.
    CS-16/CS-17 is an 80-acre area which featured infiltration sand 
filter and sludge drying beds which are associated with a former, on-
base sewage treatment plant which was decommissioned in 1997. Treated 
effluent from the treatment plant was discharged to these beds and 
contamination was suspected to have been caused by discharge of wastes 
from on-base operations. The former sewage treatment plant was replaced 
with an upgraded plant, and discharge effluent is piped off-site to new 
sand filter beds located near the Cape Cod Canal.

[[Page 41992]]

    Drum Disposal Operable Unit (DDOU) was a one-acre area where a 
total of 11 drums were discovered during investigation activities at 
CS-16/CS-17.
Investigation and Feasibility Study Activities
    CS-16/CS-17 was investigated several times beginning with a site 
investigation in 1987. This investigation included the collection of 
surface soil and sludge samples from the active, inactive and abandoned 
sludge drying beds, and the collection of groundwater samples. In 1990, 
another site investigation included eleven soil borings with 
installation of selected monitoring wells and 31 soil samples.
    In the remedial investigation which was conducted in 1990 and 1994, 
CS-16/CS-17 was divided into seven areas for investigation: Active sand 
filter beds; inactive sand filter beds; abandoned sand filter beds; 
active sludge drying beds; inactive sludge drying beds; abandoned 
sludge drying beds; and former sewage sludge disposal area. Surface and 
subsurface soil sampling found that three of the seven areas contained 
contaminants which posed an ecological risk because of metals 
contamination.
    A Feasibility Study was conducted to evaluate remedial action 
alternatives which ranged from no action to containment to excavation.
    The DDOU was discovered in 1994 during remedial investigation 
activities as CS-16/CS-17. Based on the presences of drums, two surface 
soil samples were collected. A separate investigation was conducted and 
included 24 shallow soil borings and collection of soil samples for 
field screening of pesticides and confirmatory analysis, 4 deep soil 
borings as monitoring wells and groundwater samples, ten additional 
surface soil samples and groundwater sampling.
    The investigation identified two areas containing DDT in high 
concentrations 3,600 mg/kg and 4.1 mg/kg in areas one and two, 
respectively. None of the four monitoring wells contained any 
detectable concentrations of pesticides. A risk evaluation summary 
concluded that site concentrations exceeded risk-based levels and a 
removal action was necessary.
    An engineering evaluation/cost analysis for DDOU was conducted to 
evaluate removal action alternatives.
Characterization of Risk and Decision Document Findings
    The Remedial Investigation Report for CS-16/CS-17 concluded that: 
Arochlor 1254; Dieldrin; Arsenic; chromium; Copper; lead; and Zinc 
posed an ecological risk and impact to groundwater risk. A ROD was 
issued in May 1999.
    The Site Inspection Report for DDOU concluded that: 2-Chlorophenol; 
1,2,4-Trichlorobenzene; 2,4-Dinitrotoluene; pentachlorophenol; 
phenanthrene; 4,4'-DDD; 4,4'-DDE; 4,4'DDT; Alpha-BHC; arsenic; 
chromium; lead; vanadium; and zinc posed a human health and ecological 
risk. A multi-site Action Memorandum with DDOU as one of the sites was 
issued in June 1999.
Response Actions and Cleanup Standards
    In 1994, eleven drums were discovered and removed in a non-CERLCA 
action at DDOU. In 2002, approximately 213 cubic yards of contaminated 
soil was removed in a CERCLA removal action and transported off-site 
for incineration. The removal action cleanup standards were: 330 mg/kg 
for 2-Chlorophenol (ecological); 9,250 mg/kg for 1,2,4-Trichlorobenzene 
(human); 330 mg/kg for 2,4-Dinitrotoluene (human); 800 mg/kg for 
pentachlorophenol (human/ecological); 0.625 mg/kg for phenanthrene 
(ecological); 2.41 mg/kg for 4,4'-DDD (ecological); 0.227 mg/kg for 
4,4'-DDE (ecological); 0.250 mg/kg for 4,4'DDT (ecological); 0.203 mg/
kg for Alpha-BHC (ecological); 7.1 mg/kg for arsenic (ecological); 19 
mg/kg for chromium (ecological); 99 mg/kg for lead; 47 mg/kg for 
vanadium; and 68 mg/kg for zinc. The removal action for DDOU was 
documented in a removal action report which was issued in April 2004.
    In 2001, excavation activities under the CERCLA action authorities 
were completed. A total of 4,000 cubic yards of contaminated soil was 
removed and transported off-site for disposal. The remedial action 
cleanup standards were: 1.00 mg/kg for Arochlor 1254 (ecological); 
0.035 mg/kg for Dieldrin (ecological); 7.10 mg/kg for Arsenic 
(ecological); 19 mg/kg for chromium (ecological); 61 mg/kg for Copper 
(ecological); 99 mg/kg for lead (ecological); and 68 mg/kg for Zinc 
(ecological). The remedial action for CS-16/CS-17 was documented in a 
remedial action report which was issued in April 2003.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Chemical Spill-22 (CS-22)
Site Location and History
    CS-22 is located in the northern section of the MMR, as shown in 
Figure 4. CS-22 coordinates in Easting and Northing coordinates (NAD27) 
are: 862327, 247882; 862853, 247110; 862794, 246747; 862334, 247011; 
861977, 247666; 861907, 248078; and 862327, 247882. The area CS-22 
proposed for partial deletion includes all surface soils within these 
coordinates.
    CS-22 is a 13-acre area near the east-central portion of MMR which 
was a former sand and gravel pit.
Investigation and Feasibility Study Activities
    A preliminary assessment was completed in 1999 and identified 
petroleum-contaminated soil requiring action. In spring 2000, a non-
CERCLA removal action was conducted. The site was further investigated 
in 2001.
    Seventeen additional surface soil and subsurface soil samples were 
collected at the area of the previous excavation as well as debris 
piles at the site. The site investigation and risk evaluation for human 
health and ecological risk concluded that a removal action was needed 
to address metals, petroleum and polynuclear-aromatic hydrocarbon 
contamination. Prior to the removal action, an additional 95 soil 
samples were collected at 47 locations.
    An engineering evaluation/cost analysis was conducted to evaluate 
removal action alternatives.
Characterization of Risk and Decision Document Findings
    The Site Inspection Report concluded that aluminum, arsenic, 
chromium, lead, selenium, benzo(a)anthracene, benzo(a)pyrene, 
benzo(b)fluoranthene, dibenz(a,h)anthracene, indeno(1,2,3-c,d)pyrene, 
petroleum hydrocarbons, and tetrachloroethylene posed a human health 
and ecological risk, and impact to groundwater risk. An Action 
Memorandum documenting this non-time critical removal action was 
finalized in August 2002.
Response Actions and Cleanup Standards
    In Spring 2000, approximately 418 tons of petroleum contaminated 
soil was removed in a non-CERCLA action and transported off-site for 
disposal. In 2002, approximately 440 cubic yards of contaminated soil 
was removed in a CERCLA removal action and transported off-site for 
disposal. The removal action cleanup standards were: 8,900 mg/kg for 
aluminum (ecological); 3.6 mg/kg for arsenic (human); 19 mg/kg for 
chromium (ecological); 99 mg/kg for lead (ecological); 1.0 mg/kg for 
selenium (ecological); 0.7 mg/kg for benzo(a)anthracene (human); 0.625 
mg/

[[Page 41993]]

kg (0-2 ft bgs) and 0.7 mg/kg (2-15 ft bgs) for benzo(a)pyrene (human/
ecological); 0.7 mg/kg for benzo(b)fluoranthene (human); 0.7 mg/kg for 
dibenz(a,h)anthracene (human); 0.7 mg/kg for Indeno(1,2,3,-c,d)pyrene 
(human); 200 mg/kg for total petroleum hydrocarbons (human/impact to 
groundwater) (Aliphatic--100 mg/kg for C5-C8; 
1,000 mg/kg for C9-C12; 1,000 mg/kg for 
C13-C18; 2,500 mg/kg for C19-
C36; and Aromatic--100 mg/kg for C9-
C10; and 200 mg/kg for C11-C22); and 
10 ug/kg for tetrachloroethylene (impact to groundwater). The removal 
action for CS-22 was documented in a removal action report which was 
issued in July 2003.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Fuel Spill-2 (FS-2)
Site Location and History
    FS-2 is a seven-acre area located in the Cantonment area of the MMR 
near its southern boundary, as shown in Figure 4. Its coordinates in 
Easting and Northing coordinates (NAD27) are: 856255, 237383; 857124, 
237257; 857125, 236889; 857250, 237016; and 856255, 237383. The area 
FS-2 proposed for partial deletion includes all surface soils within 
these coordinates.
    FS-2 was originally used for unloading and distributing jet fuel 
and aviation gasoline. The area contains one main-line railroad track 
and several rail sidings. Before decommissioning, the site contained a 
petroleum unloading rack, a pump house and associated underground 
piping. The unloading facility was taken out of service in 1965.
Investigation and Feasibility Study Activities
    FS-2 was first investigated in 1985 with the excavation of 18 test 
pits and installation of two monitoring wells. A soil gas survey and 
soil sampling at two test pits and four soil borings were completed in 
1989. One monitoring well was installed in each of the four borings.
    Based on the investigations which were conducted in 1985 and 1989, 
an RI Report which was issued in 1991 recommended removing contaminated 
soil since historical fuel spills had caused near-surface soil stains 
and contributed to the petroleum contamination of shallow soil near the 
pump house and a monitoring well. A supplemental RI was carried out in 
April 2000 to investigate the extent of any remaining petroleum 
contamination in the surface and subsurface soil since a non-CERCLA 
removal action was conducted in 1996. Petroleum-related semivolatile 
organic compounds and metals were detected in soil and groundwater 
samples. However, the concentrations were below action levels, and did 
not pose a human health or ecological risk.
    No feasibility study was conducted since response actions in the 
form of non-CERCLA removal actions were conducted and the supplemental 
RI concluded that there were no risks.
Characterization of Risk and Decision Document Findings
    Due to the response action and the supplemental remedial 
investigation which concluded that there were no site risks, a No 
Further Action Record of Decision was finalized in February 2002.
    No further risks are present at FS-2 and no institutional controls 
are present.
Response Actions and Cleanup Standards
    In 1992, the header piping which was part of the fuel distribution 
system was removed. In 1996, approximately 520 tons of soil was removed 
in a non-CERCLA action, and treated at an on-base low-temperature 
thermal treatment system.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Fuel Spill-4 (FS-4)
Site Location and History
    FS-4 is located in the Cantonment area of the MMR near its southern 
boundary, as shown in Figure 5. Its coordinates in Easting and Northing 
coordinates (NAD27) are: 865858, 238266; 866000, 238149; 865712, 
237788; 865665, 237768; 865601, 237779; 865481, 237925; and 865858, 
238266. The area FS-4 proposed for partial deletion includes all 
surface soils within these coordinates.
    FS-4 is a two-acre area around the former Building 178 and a fuel 
pumphouse with five underground storage tanks which were located on the 
base airfield. From the late 1950s until the early 1970s, aviation 
gasoline was pumped to the pumphouse and the tanks from an area known 
as the Petroleum Fuels Storage Area.
Investigation and Feasibility Study Activities
    FS-4 was first evaluated as part of a records search in 1985. The 
records search identified the presence of underground storage tanks. In 
October 1993, a site investigation was conducted which included two 
monitoring wells, one soil boring, and 30 soil gas samples. Although 
this report recommended no further action, residual fuel contamination 
was identified beneath several USTs based on qualitative 
photoionization detector results following the removal and upgrade of 
the fuel systems at FS-4 in 1994.
    An engineering evaluation/cost analysis was conducted and 
alternatives included sampling and subsurface treatment of contaminated 
soils by biosparging/soil vapor extraction.
Characterization of Risk and Decision Document Findings
    A multi-site Action Memorandum with FS-4 as one of the sites was 
finalized in 1999 and selected subsurface soil sampling to determine if 
biosparging/soil vapor extraction was needed to address risks from 
contaminants leaching to groundwater. During remedial design, soil 
sampling results demonstrated that concentrations of petroleum 
hydrocarbons, benzene, toluene, ethylbenzene and xylenes were below 
cleanup levels, and installation of the treatment system was 
unnecessary. No further risks are present at FS-4 and no institutional 
controls are present.
Response Actions and Cleanup Standards
    In 1993, as part of the Fuel Systems Upgrade program, the five 
underground storage tanks along with a 25,000 gallon underground 
storage tank were removed in a non-CERCLA action.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Fuel Spill-7 (FS-7)
Site Location and History
    Fuel Spill-7 (FS-7) is located in the Cantonment section of the 
MMR, as shown in Figure 4, within the footprint of the CS-10 
groundwater plume. FS-7 coordinates in Easting and Northing coordinates 
(NAD27) are: 860315, 243139; 860098, 243122; 860089, 243224; 860287, 
243236; and 860315, 243139. The area FS-7 proposed for partial deletion 
includes all surface soils within these coordinates.

[[Page 41994]]

    FS-7 consisted of a half-acre area in the vicinity of the former 
Building 1820. A 500-gallon underground storage tank was installed in 
1970 to store No. 2 fuel oil.
Investigation and Feasibility Study Activities
    A site investigation was completed in 1993. Investigation 
activities included: soil gas samples; surface and subsurface soil 
samples; and installation of one monitoring well. The site 
investigation concluded that surface soil was impacted by polynuclear 
aromatic hydrocarbons.
    A follow-up investigation was conducted in 1995. Investigation 
activities included: test pitting; soil sampling from test pit and 
surface soil; installation of two soil borings for monitoring wells; 
and groundwater samples. This investigation confirmed the polynuclear 
aromatic hydrocarbon contamination and concluded that detections in 
groundwater were from another nearby site.
    An engineering evaluation/cost analysis was conducted to evaluate 
removal action alternatives.
Characterization of Risk and Decision Document Findings
    The Site Inspection Report concluded that Benzo(a)anthracene, 
Benzo(b)anthracene, Benzo(k)anthracene, Benzo(k)anthracene, 
Benzo(g,h,i)anthracene, Benzo(a)pyrene, Chrysene, 
Dibenzo(a,h)anthracene, Fluoranthene, Indeno(1,2,3-c,d)pyrene, and 
Phenanthrene posed a human health and ecological risk. A multi-site 
Action Memorandum with FS-7 as one of the sites was issued in 1999.
Response Actions and Cleanup Standards
    In 1985, a 500-gallon underground storage tank was removed in a 
non-CERCLA action. In April 2001, approximately 18 cubic yards of 
contaminated soil was excavated in a CERCLA removal action and 
transported for off-site disposal. The removal action cleanup standards 
were: 5 mg/kg for Benzo(a)anthracene; 5 mg/kg for Benzo(b)anthracene; 5 
mg/kg for Benzo(k)anthracene; 5 mg/kg for Benzo(k)anthracene; 5 mg/kg 
for Benzo(g,h,i)anthracene; 5 mg/kg for Benzo(a)pyrene; 0.625 mg/kg for 
Chrysene; 5 mg/kg for Dibenzo(a,h)anthracene; 7.81 mg/kg for 
Fluoranthene; 5 mg/kg for Indeno(1,2,3-c,d)pyrene; and 0.625 mg/kg for 
Phenanthrene. The removal action for FS-7 was documented in a removal 
action report which was issued in April 2004.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Fuel Spill-9 (FS-9)
Site Location and History
    Fuel Spill-9 (FS-9) is located in the south central portion of the 
MMR, as shown in Figure 4, within the footprint of the CS-10 
groundwater plume. FS-9 coordinates in Easting and Northing coordinates 
(NAD27) are: 858342, 241473; 858076, 240908; 857678, 241088; 857748, 
241225; 858005, 241279; 858146, 241586; and 858342, 241473. The area 
FS-9 proposed for partial deletion includes all surface soils and 
structures within these coordinates.
    FS-9 is a four-acre area consisting of a motor pool which operated 
from 1941 until 1986 and an undeveloped vegetated portion.
Investigation and Feasibility Study Activities
    The site was initially investigated in 1992. In 1998, a remedial 
investigation was completed over five areas at FS-9: the motor pool and 
fueling island and underground storage tanks; the leaching wells and 
catch basins; the waste disposal area; the drainage ditch/swale area; 
and the pond/wet area. Total petroleum hydrocarbons and several metals, 
chromium, lead, vanadium and zinc, were identified as the contaminants 
of concern posing human health and ecological risks.
    A Feasibility Study evaluated alternatives which ranged from no 
action to excavation with soil treatment and disposal options.
Characterization of Risk and Decision Document Findings
    The Remedial Investigation Report concluded that total petroleum 
hydrocarbons, chromium, lead, vanadium, and zinc posed human health and 
ecological risks, and a threat to leaching to groundwater. A Record of 
Decision was finalized in June 1999.
Response Actions and Cleanup Standards
    In 1994, three underground storage tanks and associated 
contaminated soil were removed in a non-CERCLA action as part of the 
Fuel Systems Upgrade Program. In 1996, waste disposal leaching wells 
and a catch basin were removed in a CERCLA removal action as part of a 
basewide drainage structure removal program. The leaching well adjacent 
to Building 1369 was abandoned in place due to structural concerns 
relative to the building. In 2001, approximately 125 cubic yards of 
contaminated soil was excavated and transported off-site for disposal 
which implemented the selected remedy in the Record of Decision. The 
remedial action cleanup standards were: 19 mg/kg for chromium 
(ecological); 300 mg/kg for lead (human); 47 mg/kg for vanadium 
(ecological); 68 mg/kg for zinc (ecological); and petroleum 
hydrocarbons (impact to groundwater) (Aliphatic--100 mg/kg for 
C5-C8; 1,000 mg/kg for C9-
C12; 1,000 mg/kg for C13-C18; 2,500 
mg/kg for C19-C36; and Aromatic--100 mg/kg for 
C9-C10; and 200 mg/kg for C11-
C22).
    Sampling during remedial design determined that a contingency 
remedy for a soil vapor extraction system was not necessary. The 
remedial action for FS-9 was documented in a remedial action report 
which was issued in September 2002.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Fuel Spill-13 (FS-13)
Site Location and History
    Fuel Spill-13 (FS-13) is known as the Underground Fuel Line 
Cantonment and is located in the central portion of the MMR within the 
footprint of the CS-10 groundwater plume as shown in Figure 4. FS-13 
coordinates in Easting and Northing coordinates (NAD27) are: 860489, 
244233; 861055, 243973; 860571, 242911; 860391, 243006; 860283, 243360; 
860352, 243494; 860343, 243638; 860260, 243718; and 860489, 244233. The 
area FS-13 proposed for partial deletion includes all surface soils 
within these coordinates.
    FS-13 is a 13-acre open area bounded by several roads near the main 
rotary on base. A small portion of the site, east of the pipeline and 
south of North Truck Road extends into the restricted flightline 
operations area. A fuel spill was reported in 1972. Approximately 2,000 
gallons of JP-4 jet fuel were observed at the ground surface during an 
inspection.
Investigation and Feasibility Study Activities
    The site inspection was first conducted in 1996. Investigation 
activities included: a soil gas survey; trench excavation and soil 
sampling; soil boring completion and sampling; and monitoring well 
installation and

[[Page 41995]]

sampling. Dieldrin and several metals were detected which led to the 
need for additional investigations.
    A supplemental site inspection was conducted in 2004. Investigation 
activities concentrated on previous detections in the subsurface. Ten 
soil borings were advanced and subsurface soil samples were collected 
for analysis. Later that year, additional soil samples were collected. 
In April 2005, a test pit was excavated to assess the mobility of 
metals and pesticides.
    Risks to human health and the environment, and risk of soil 
contaminants leaching to groundwater were evaluated with the remaining 
site data. The Supplemental Site Inspection Report concluded that 
contaminants detected above screening levels did not pose a risk 
because they were at background concentrations or were infrequently 
detected.
    No feasibility study was conducted since the Supplemental Site 
Inspection Report concluded that the site pose risk to human health, 
environment or groundwater.
Characterization of Risk and Decision Document Findings
    The Supplemental Site Inspection Report concluded that did not pose 
a human health and ecological risks, and a threat to leaching to 
groundwater. A No Further Action Decision Document was finalized in 
September 2006.
Response Actions and Cleanup Standards
    In 1972, a non-CERCLA removal action was conducted to remove 
contamination from a spill of 2,000 gallons of JP-4 jet fuel from a 
pipeline. In April 2005, approximately 14 tons of soil was removed from 
a test pit in a non-CERCLA removal action.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Fuel Spill-14 (FS-14)
Site Location and History
    FS-14 is located in the northern portion of the MMR as shown in 
Figure 3. Its coordinates in Easting and Northing coordinates (NAD27) 
are: 866044, 270557; 866268, 270558; 866267, 270300; 866047, 270299; 
and 866044, 270557. The area FS-14 proposed for partial deletion 
includes all surface soils within these coordinates.
    FS-14 is a one-acre site where a motor vehicle gasoline fuel spill 
of approximately 500 gallons occurred in 1985.
Investigation and Feasibility Study Activities
    The site was investigated in 1995 to evaluate any remaining 
contamination from the fuel spill. Surface and subsurface soil and 
groundwater samples from four newly installed monitoring wells were 
collected. An additional round of groundwater samples was collected in 
1999, and it was determined that the site did not require any further 
action.
    No feasibility study was conducted since response actions in the 
form of non-CERCLA removal actions were conducted and the 
investigations concluded that the site did not pose a risk to human 
health or the environment.
Characterization of Risk and Decision Document Findings
    The risk assessment concluded no significant risk to human health 
and environment. A No Further Action Decision Document was finalized in 
April 2000. No further risks are present at FS-14 and no institutional 
controls are present.
Response Actions and Cleanup Standards
    In 1985, thirty cubic yards of contaminated soil was removed in a 
non-CERCLA action immediately following a release of approximately 500 
gallons of fuel.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Fuel Spill-17 (FS-17)
Site Location and History
    FS-17 was a three and a half-acre site which is located west of the 
former main base landfill in the south-central portion of the MMR, as 
shown in Figure 4. Its coordinates in Easting and Northing coordinates 
(NAD27) are: 855913, 246894; 856532, 246671; 856441, 246447; 855816, 
246677; and 855913, 246894. The area FS-17 proposed for partial 
deletion includes all surface soils within these coordinates.
    FS-17 was a motor pool and vehicle maintenance facility which 
operated from World War II to 1946.
Investigation and Feasibility Study Activities
    FS-17 was investigated in several phases from 1993 through 1998 
through investigations and post-excavation sampling events. Surface and 
subsurface soil samples and groundwater samples from monitoring wells 
were collected based on the site's history. Data collected during the 
various investigative and removal activities indicated that minimal to 
no contamination for surface and subsurface soil, and groundwater, and 
that the response actions were complete.
    No feasibility study was conducted since response actions in the 
form of non-CERCLA removal actions were conducted and the RI concluded 
that there were no risks to human health and the environment.
Characterization of Risk and Decision Document Findings
    Due to the response actions and the remedial investigation which 
concluded that there were no site risks, a No Further Action Record of 
Decision was finalized in December 1999. No further risks are present 
at FS-17 and no institutional controls are present.
Response Actions and Cleanup Standards
    In 1994, two underground storage tanks and a fuel pump island were 
removed in a non-CERCLA action. In 1996, a French drain, leaching well, 
dry well, vehicle maintenance bays and foundations for two buildings 
were removed in a CERLCA removal action as part of a basewide drainage 
structural removal program.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Fuel Spill-18 (FS-18)
Site Location and History
    Fuel Spill-18 (FS-18) is located in the south central section of 
the MMR, as shown in Figure 4, within the footprint of the CS-10 
groundwater plume. FS-18 coordinates in Easting and Northing 
coordinates (NAD27) are: 857962, 244410; 859015, 243956; 859046, 
243818; 858901, 243531; 858764, 243519; 858706, 243549; 858577, 243379; 
858373, 243484; 858511, 243672; 857676, 244076; and 857962, 244410. The 
area FS-18 proposed for partial deletion includes all surface soils and 
structures within these coordinates.
    FS-18 is a 14-acre site of a former motor pool and fuel transfer 
station. Four underground storage tanks were installed in 1941, two of 
which contained diesel fuel and the other two contained motor vehicle 
gasoline. Three

[[Page 41996]]

motor pool vehicle maintenance buildings were associated with FS-18.
Investigation and Feasibility Study Activities
    Investigations were conducted in 1993 and 1995. The Phase I site 
investigation activities included installation and sampling of three 
monitoring wells and 45 soil gas samples. A total of six surface soil 
and three subsurface soil samples and three rounds of groundwater 
samples were collected in all investigation phases.
    The soil investigation and sampling focused on three areas; the 
drainage course south of the study area and east of South Gaffney 
Street, a topographic depression west of the study area, and the area 
around the two former fuel islands and leaching wells.
    The site investigation and risk evaluation for human health and 
ecological risk, and risk to groundwater from leaching of soil 
contaminants concluded that a removal action was needed to address 
petroleum hydrocarbon contamination in the topographical depression and 
the drainage swale.
    An engineering evaluation/cost analysis was conducted to evaluate 
removal action alternatives.
Characterization of Risk and Decision Document Findings
    The Site Inspection Report concluded that Total Petroleum 
Hydrocarbons posed a risk to groundwater from the leaching of 
contaminants from soil. A multi-site Action Memorandum with FS-18 as 
one of the sites was issued in 1999.
Response Actions and Cleanup Standards
    In 1985, two of the four underground storage tanks were removed in 
a non-CERCLA action. In 1990, the buildings at FS-18 were demolished. 
In August 1994, the other two underground storage tanks were removed in 
a non-CERCLA action. In 1996 as part of a basewide drainage structure 
removal program, a total on nine drainage structures and approximately 
430 cubic yards of contaminated soil were removed in a CERCLA removal 
action. Removal design sampling activities were conducted in 2001 and 
did not identify any contamination above cleanup levels, so a removal 
action was not conducted. The removal action cleanup standards for 
petroleum hydrocarbons (impact to groundwater) were: 100 mg/kg for 
C5-C8; 1,000 mg/kg for C9-
C12; 1,000 mg/kg for C13-C18; 2,500 
mg/kg for C19-C36 for Aliphatic hydrocarbons; 100 
mg/kg for C9-C10; and 200 mg/kg for 
C11-C22 for Aromatic hydrocarbons. A removal 
action report which documented the additional soil sampling activities 
and no further action at FS-18 was issued in April 2004.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Fuel Spill-19 (FS-19)
Site Location and History
    FS-19 was a two-acre site which is located in the south-central 
portion of the MMR, as shown in Figure 4. Its coordinates in Easting 
and Northing coordinates (NAD27) are: 856829, 241507; 856934, 241444; 
856734, 241142; 856624, 241206; and 856829, 241507. The area FS-19 
proposed for partial deletion includes all surface soils within these 
coordinates.
    FS-19 is a one-acre former motor gas fuel storage and transfer 
point which began operations in 1941 when six 10,000-gallon underground 
storage tanks were installed and used to store motor gas until 1958. 
Between the years 1958 to 1965, the six underground storage tanks were 
used to store hazardous wastes.
Investigation and Feasibility Study Activities
    FS-19 was investigated in several phases from 1989 through 1998 
through investigations and post-excavation sampling events. Surface and 
subsurface soil samples and groundwater samples from monitoring wells 
were collected based on the site's history. Data collected during the 
various investigative and removal activities indicated that minimal to 
no contamination for surface and subsurface soil, and groundwater, and 
that the response actions were complete.
    No feasibility study was conducted since response actions in the 
form of non-CERCLA removal actions were conducted and the RI concluded 
that there were no risks to human health and the environment.
Characterization of Risk and Decision Document Findings
    Due to the response actions and the remedial investigation which 
concluded that there were no site risks, a No Further Action Record of 
Decision was finalized in December 1999. No further risks are present 
at FS-19 and no institutional controls are present.
Response Actions and Cleanup Standards
    In 1989, six underground storage tanks were removed in a non-CERCLA 
action. In 1996, a drainage structure and contaminated soil were 
removed in a CERLCA removal action as part of a basewide drainage 
structural removal program.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Fuel Spill-20 (FS-20)
Site Location and History
    FS-20, former Current Product Tank (CPT) No. 88, is located in the 
Cantonment Area of the MMR, as shown in Figure 5. Its coordinates in 
Easting and Northing coordinates (NAD27) are: 862957, 241292; 863022, 
241435; 863119, 241393; 863052, 241251; and 862957, 241292. The area 
FS-20 proposed for partial deletion includes all surface soils and 
structures within these coordinates.
    FS-20 is a half-acre area which featured former Current Product 
Tank No. 88 which was a 12,500 gallon underground storage tank that was 
removed in 1996.
Investigation and Feasibility Study Activities
    A Phase I Records Search was completed in December 1986. In 1987, 
the site investigation activities included one test pit and 
installation of one groundwater monitoring well downgradient of the 
tank. Analytical results indicated no contamination of soil or 
groundwater. Investigation concluded that there was no significant 
potential for contamination and that the site did not pose a risk.
    No feasibility study was conducted since the site investigation 
concluded that the site did not impact the soil and groundwater.
Characterization of Risk and Decision Document Findings
    A No Further Action Decision Document was finalized in July 1991. 
No risks are present at FS-20 and no institutional controls are 
present.
Response Actions and Cleanup Standards
    In 1996, the 12,500 gallon underground storage tank was removed in 
a non-CERCLA action.

[[Page 41997]]

Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Fuel Spill-23 (FS-23)
Site Location and History
    FS-23, South Truck Road Fuel Spill, is located in the southern 
portion of the MMR, as shown in Figure 4. Its coordinates in Easting 
and Northing coordinates (NAD27) are: 861731, 237487; 861881, 237420; 
861807, 237237; 861652, 237308; and 861731, 237121. The area FS-23 
proposed for partial deletion includes all surface soils within these 
coordinates.
    FS-23 is a less than one-acre area in which a fuel spill occurred 
in 1965 when JP-4 leaked onto the ground from a fuel line clean-out 
valve.
Investigation and Feasibility Study Activities
    Following a preliminary assessment in 1986, FS-23 was investigated 
and characterized during two site inspections in 1988 and 1989, and a 
groundwater sampling program in 1999.
    Investigation activities included: a soil gas survey; excavation of 
test pits; installation of test boring and monitoring wells; and soil 
and groundwater sampling and analysis.
    Soil and groundwater sampling detected minimal contamination. 
Results of the human health and ecological risk assessments suggest 
that unacceptable levels of risk are not anticipated.
    No feasibility study was conducted since response actions in the 
form of non-CERCLA removal actions were conducted and the 
investigations concluded that the site did not pose a risk to human 
health or the environment.
Characterization of Risk and Decision Document Findings
    The risk assessment concluded no significant risk to human health 
and environment. A No Further Action Decision Document was finalized in 
June 2000. No further risks are present at FS-23 and no institutional 
controls are present.
Response Actions and Cleanup Standards
    During the Fuel System Upgrade Program in 1993, two underground 10-
inch fuel lines were removed in a non-CERCLA action.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Fuel Spill-25 (FS-25)
Site Location and History
    FS-25 is located on the southeast portion of the MMR as shown in 
Figure 5. Its coordinates in Easting and Northing coordinates (NAD27) 
are: 866837, 237121; 867004, 237329; 867148, 237217; 866979, 237006; 
and 866837, 237121. The area FS-25 proposed for partial deletion 
includes all surface soils and structures within these coordinates.
    FS-25 covers approximately one-acre and is located immediately 
northeast of Building 167. In 1989, petroleum-stained soil was 
discovered during the construction of a parking lot and 2,000 cubic 
yards was excavated. The history and cause of the contamination was 
unknown although the area was reported to have been used for heavy 
equipment maintenance which may have had spills and releases.
Investigation and Feasibility Study Activities
    Investigation of the petroleum-stained soil began with excavation 
of test pits, completion of soil borings, and soil sampling of the 
investigation areas in December 1989. With the exception of a small 
portion of the soil from the excavation, soil data indicated that most 
of typical fuel compounds have degraded and there was no subsurface 
soil contamination requiring action.
    No feasibility study was developed since investigation activities 
did not identify any contamination in the subsurface.
Characterization of Risk and Decision Document Findings
    Based on sampling results and low-temperature thermal treatment of 
non-backfilled soil, a No Further Action Decision Document was 
finalized in June 1997. No further risks are present at FS-25 and no 
institutional controls are present.
Response Actions and Cleanup Standards
    In November 1989, approximately 2,000 cubic yards of contaminated 
soil was removed in a non-CERCLA action and stockpiled on a taxiway of 
the airfield. In 1996, the stockpiled soil was sampled to determine 
remaining petroleum hydrocarbon concentrations and to evaluate 
disposal/reuse options. A majority of this soil was used as backfill, 
but 88 cubic yards was treated in a low-temperature thermal desorption 
system which was on-site treating contaminated soil from other 
projects. A cleanup standard of 1,235 parts per million for total 
petroleum hydrocarbons was selected.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Fuel Spill-26 (U.S. Coast Guard) (FS-26 (CG))
Site Location and History
    FS-26 (CG) is located at the intersection of two unnamed paved 
roads at the southwesterly end of Building 3444 which is a U.S. Coast 
Guard warehouse, as shown in Figure 4. Its coordinates in Easting and 
Northing coordinates (NAD27) are: 856353, 242055; 856407, 242129; 
856499, 242071; 856449, 241997; and 856353, 242055. The area FS-26 (CG) 
proposed for partial deletion includes all surface soils within these 
coordinates.
    FS-26 (CG) is a less than one-acre former location of a 3,000-
gallon underground storage tank which contained No. 2 heating oil and 
was installed in the early 1950s near Building 3444.
Investigation and Feasibility Study Activities
    A soil boring was advanced in the backfilled UST excavation area to 
assess subsurface contamination. No contamination was detected in these 
samples. Groundwater samples from a nearby monitoring well also did not 
detect any site contamination.
    No feasibility study was developed since investigation activities 
did not identify any contamination which remained from the UST removal.
Characterization of Risk and Decision Document Findings
    A No Further Action Decision Document was finalized in July 1997. 
No further risks are present at FS-26 (CG) and no institutional 
controls are present.
Response Actions and Cleanup Standards
    In 1990, a 3,000 gallon underground storage tank and 70 cubic yards 
of contaminated soil was removed under non-CERCLA authority (i.e., no 
Action Memorandum was issued). No structures are present at FS-26 (CG).

[[Page 41998]]

Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Landfill-4 (LF-4)
Site Location and History
    LF-4 is located outside the eastern border of the MMR, as shown in 
Figure 5. Its coordinates in Easting and Northing coordinates (NAD27) 
are: 867744, 235225; 867650, 234793; 867382, 234858; 867302, 234920; 
867295, 235037; 867351, 235121; 867416, 235321; 867491, 235357; and 
867744, 235225. The area LF-4 proposed for partial deletion includes 
all surface soils within these coordinates.
    LF-4 is a four-acre, former borrow pit which became an illegal 
dumping ground because it was located outside the border of the MMR. 
Although the property is currently owned by the town of Mashpee, it is 
under the control of the Air Force which obtained a limited easement to 
this property in 1960 to ensure safe operation at the airfield and to 
create a clear safety zone for the Otis Air National Guard Base 
Ammunition Storage Area.
Investigation and Feasibility Study Activities
    Following the non-CERCLA removal action, a site investigation was 
conducted in 1999. The investigation activities included collection and 
analysis of surface and subsurface soil samples, review of existing 
groundwater data, collection of two groundwater samples, and a risk 
evaluation. All sampling results were below action levels.
    The sampling results and an evaluation of potential risks to human 
health and environment demonstrated that the site did not pose a threat 
or require no action.
    No feasibility study was developed since investigation activities 
after the removal action did not identify any contamination which could 
have been caused by the former landfill.
Characterization of Risk and Decision Document Findings
    A No Further Action Decision Document was finalized in November 
2000. No further risks are present at LF-4 and no institutional 
controls are present.
Response Actions and Cleanup Standards
    In June 1998, the town and the Massachusetts Army National Guard 
conducted non-CERCLA removal actions under a DEP Administrative Consent 
Order. Approximately 950 cubic yards of solid waste were removed. No 
release of any hazardous substances was observed. In the removal, a 55-
gallon drum containing five gallons of petroleum product was discovered 
and removed.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Storm Drain-2/Fuel Spill-6/Fuel Spill-8 (SD-2/FS-6/FS-8)
Site Location and History
    SD-2/FS-6/FS-8 is located on the southern boundary of the MMR, as 
shown in Figure 5. Its coordinates in Easting and Northing coordinates 
(NAD27) are: 865636, 236155; 865932, 236045; 865653, 235179; 865140, 
234242; 864849, 233949; 864760, 234141; 864949, 234459; 865265, 235096; 
and 865636, 236155. The area SD-2/FS-6/FS-8 proposed for partial 
deletion includes all surface soils within these coordinates.
    SD-2/FS-6/FS-8 is a 15.6-acre area consisting of a storm drainage 
ditch which extends south-southwest from the southern boundary of the 
MMR towards Ashumet Pond. SD-2/FS-6/FS-8 received storm water discharge 
from the MMR runway/aircraft maintenance ramp storm sewer system from 
1950 through 2001. FS-6 and FS-8 are related to SD-2 because they were 
two aviation gasoline fuel spills which occurred on the aircraft 
maintenance ramp and were reportedly washed directly to the storm sewer 
eventually making its way into the SD-2 ditch. There are reports of 
other releases into SD-2 of fuel and solvents which were used in the 
various maintenance shops. In 1968, an oil-water separator was 
constructed at the storm sewer outfall to intercept fuels from the 
aircraft maintenance ramp.
Investigation and Feasibility Study Activities
    An initial investigation was conducted in 1988 with installation of 
two monitoring wells and collection of six sediment samples from the 
storm drainage ditch. In 1989, a remedial investigation expanded the 
investigation with additional groundwater and sediment samples. In 
1993, a supplemental remedial investigation was conducted and included 
the collection of additional sediment samples.
    The risk assessment in the remedial investigation identified an 
ecological risk due to inorganics, specifically chromium, lead, and 
zinc.
    A feasibility study was developed and evaluated soil alternatives 
which were: no action; excavation and asphalt batching; and excavation 
and off-site treatment and disposal.
Characterization of Risk and Decision Document Findings
    A multi-site Record of Decision which included SD-2/FS-6/FS-8 was 
finalized in September 1998 and selected excavation and asphalt 
batching as the remedy. Remedial action was required to address 
ecological risks. An Explanation of Significant Differences was issued 
in January 2003 and contained adjustments to the cleanup levels and 
allowed off-site disposal instead of asphalt batching which was deemed 
too expensive during remedial design and action.
Response Actions and Cleanup Standards
    In 1996, approximately 480 cubic yards of contaminated soil from an 
adjacent site called the Petroleum Fuel Storage Area and approximately 
120 cubic yards of fuel contaminated soil from SD-2 were removed in a 
non-CERCLA action. In 2002, approximately 350 cubic yards of 
contaminated soil was removed and transported off-site for disposal 
implementing the selected remedy in the ROD. The contaminants of 
concern and their cleanup levels were: chromium--19 mg/kg (ecological 
risk); lead--99 mg/kg (ecological risk); zinc--68 mg/kg (ecological 
risk). A remedial action report for SD-2/FS-6/FS-8 was issued in June 
2004 and documents the completion of the selected remedy.
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.
Storm Drain-3/Fire Training Area-3/Coal Yard-4 (SD-3/FTA-3/CY-4)
Site Location and History
    SD-3/FTA-3/CY-4, is located in the southeastern corner of the MMR, 
as shown in Figure 5. SD-3 is composed of two parcels with the 
following Easting and Northing coordinates (NAD27) are: 867639, 236299; 
867578, 236374; 867517, 236575; 867552, 236584; 867608, 236407; 867671, 
236361; 867700, 236416; 867685, 236625; 867738, 236636; 867766, 236477; 
867732, 236411; 867696, 236258; 867668, 236157; 867628, 236156; and

[[Page 41999]]

867639, 236299 for parcel A; and 868617, 236384; 868714, 236345; 
868959, 236314; 868916, 236228; 868664, 236279; 868568, 236314; and 
868617, 236384 for parcel B. FTA-3 is composed of the following Easting 
and Northing coordinates (NAD27) are: 867475, 235823; 867478, 235658; 
867369, 235537; 867188, 235535; 867077, 235645; 867079, 235808; 867184, 
235927; 867369, 235930; and 867475, 235823. CY-4 is composed of the 
following Easting and Northing coordinates (NAD27): 866878, 236000; 
867230, 236439; 867144, 236510; 867471, 236945; 867708, 237077; 867754, 
236551; 867693, 236192; 867545, 235935; 867611, 235687; 867063, 235857; 
and 866878, 236000. The area SD-3/FTA-3/CY-4 proposed for partial 
deletion includes all surface soils within these coordinates.
    SD-3/FTA-3/CY-4 is a 19-acre area located in a moderately 
industrialized area on the eastern side of the runways. The SD-3 
stormwater drainage ditch receives runoff from several areas which 
include the eastern edge of the aircraft maintenance ramp, a former 
Central Heating Plant, and associated stockpiles of coal and surficial 
coal ash. FTA-3 was used for fire training activities between 1956 and 
1958 and then as a disposal area of construction debris and coal ash 
after construction of the Central Heating Plant. CY-4 is located 400 
feet south of the Central Heating Plant and had coal stockpiled 
directly on the ground from 1955 to 1978. Coal ash was disposed on the 
ground surface south of the coal pile. Surficial drainage from the 
stockpile and ash disposal area flowed toward and into SD-3.
Investigation and Feasibility Study Activities
    Initial investigation occurred in 1987 which was followed-up with a 
remedial investigation that was conducted over three phases from 1989, 
1990, and 1993. The remedial investigation identified risk which was 
due to phenanthrene, chrysene, arsenic, chromium, lead, vanadium, and 
zinc.
    An initial investigation was conducted in 1988 with installation of 
two monitoring wells and collection of six sediment samples from the 
storm drainage ditch. In 1989, a remedial investigation expanded the 
investigation with additional groundwater and sediment samples. In 
1993, a supplemental remedial investigation was conducted and included 
the collection of additional sediment samples.
    The risk assessment in the remedial investigation identified an 
ecological risk due to inorganics, specifically chromium, lead, and 
zinc.
    A feasibility study was developed and evaluated soil alternatives 
which were: no action; excavation and asphalt batching; and excavation 
and off-site treatment and disposal.
Characterization of Risk and Decision Document Findings
    A multi-site Record of Decision which included SD-3/FTA-3/CY-4 was 
finalized in September 1998 and selected excavation and asphalt 
batching as the remedy. Remedial action was required to address 
ecological risks. An Explanation of Significant Differences was issued 
in January 2003 and contained adjustments to the cleanup levels and 
allowed off-site disposal instead of asphalt batching which was deemed 
too expensive during remedial design and action.
Response Actions and Cleanup Standards
    From February to April 1994, approximately 42,000 cubic yards of 
coal, coal ash, and contaminated soil from FTA-3 and CY-4 were 
excavated and used as subgrade fill for the landfill capping of 
Landfill No. 1, another site on MMR. In 2001, approximately 1,065 cubic 
yards of contaminated soil was excavated and transported off-site for 
disposal implementing the selected remedy in the ROD. A remedial action 
report for SD-3/FTA-3/CY-4 was finalized in August 2004 and documents 
the completion of the remedy. The contaminants of concern and their 
cleanup levels were: chromium--19 mg/kg (ecological risk); lead--99 mg/
kg (ecological risk); zinc--68 mg/kg (ecological risk).
Operation and Maintenance & Five-Year Review
    No operation and maintenance or Five-Year Reviews are required for 
this site.

B. Community Involvement

    Community input has been sought by the Air Force throughout the MMR 
investigation and cleanup process. Community relations activities that 
have occurred include: monthly meetings of the Plume Cleanup Team which 
is a group composed of agency representatives and citizens who live 
near MMR; 30-day public comment periods for decision documents; public 
meetings/hearings for the issuance of Proposed Plans, and information 
meetings for neighborhoods that are affected by off-site plume 
migration and/or off-site construction; issuance of new releases, fact 
sheets, and annual reports; and operation and maintenance of a Web site 
specifically for MMR (http://www.mmr.org).

    A copy of the Deletion Docket can be reviewed several ways. 
Although listed in the index, some information is not publicly 
available, e.g., CBI or other information whose disclosure is 
restricted by statute. Certain other material, such as copyrighted 
material, will be publicly available only in hard copy. Publicly 
available docket materials are available only in hard copy. Publicly 
available docket materials are available either electronically in 
http://www.regulations.gov or in hard copy at the EPA's New England 

Region Superfund Records Center, One Congress Street, Suite 1100, 
Boston, MA 02114 and the Information Repositories at AFCEE/IRP Office 
at Building 322 on MMR, by appointment only Monday through Friday 8 
a.m. to 5 p.m., (508) 968-4670 ext 1, and the Information Repositories 
in the Towns of Bourne, Falmouth, Sandwich, and Mashpee. The Deletion 
Docket includes this document, supporting appendices containing tables 
and figures, No Further Action Decision Documents, Records of Decision, 
Removal Action Reports, Remedial Action Reports, and correspondence 
documenting that no further remedial actions are necessary at the 
sites.
    Public participation activities have been satisfied as required in 
CERCLA Section 113(k), 42 U.S.C. 9613(k), and CERCLA Section 117, 42 
U.S.C. 9617. Documents in the deletion docket on which EPA relied for 
recommendation of the deletion from the NPL are available to the public 
in the information repository noted above or online at http://www.regulations.gov
.

    Community involvement for the sites that are the subject of this 
document has occurred by soliciting public comment on various documents 
depending on the individual site's investigation and cleanup (if 
needed) process. All No Further Action Decision Documents were issued 
for 30-day public comment periods. For those sites where Records of 
Decision were finalized, Proposed Plans were issued for 30-day public 
comment periods with comments, if any, addressed in the Responsiveness 
Summary of the Record of Decision. In addition, sites where non-time 
critical removal actions occurred provided public involvement with the 
issuance of the engineering evaluation/cost analysis for public 
comment.
    Since there are a number of ongoing investigations and cleanup at 
MMR, community involvement activities such as monthly Plume Cleanup 
Team

[[Page 42000]]

meetings will continue to occur. Other activities such as neighborhood 
meetings, updates to the MMR Web site, and issuance of news releases 
will occur as needed.

C. Current Status

    One of the three criteria for site deletion specifies that EPA may 
delete a site (or a portion of a site) from the NPL if ``responsible 
parties or other parties have implemented all appropriate response 
actions required.'' EPA believes that this criterion has been met for 
this partial deletion. In a letter the Commonwealth of Massachusetts 
provided their concurrence on the proposed deletion of the sites in 
this notice. A copy of this letter is available for review in the 
Information Repository as part of the Deletion Docket. EPA with 
concurrence from the Commonwealth of Massachusetts has determined that 
all appropriate CERCLA response actions have been completed at the 
sites in this notice and protection of human health and the environment 
has been achieved in these sites. Therefore, EPA makes this proposal to 
delete only the sites in Table 1 of the MMR Superfund Site from the 
NPL.
    Based on the successful completion of removal actions and the 
extensive investigations and risk assessments performed, there are no 
further response actions planned or scheduled for these sites. Pursuant 
to the NCP, a five-year review will not need to be performed at all of 
the sites in this notice.
    While EPA does not believe that any future response actions at any 
of the sites in this notice will be needed, if future conditions 
warrant such action, the proposed deletion sites of the MMR Site remain 
eligible for future Fund-financed response actions. Furthermore, this 
partial deletion does not alter the status of all the remaining sites 
and groundwater plumes of the MMR Site which are not proposed for 
partial deletion and remain on the NPL.

    Dated: July 23, 2007.
Robert W. Varney,
Regional Administrator, EPA New England.

                              Table 1.--List of Proposed Sites for Partial Deletion
----------------------------------------------------------------------------------------------------------------

----------------------------------------------------------------------------------------------------------------
CS-1*                               CS-12*                              FS-17
CS-1 (CG)*                          CS-14*                              FS-18*
CS-2                                CS-15                               FS-19
CS-2 (CG)*                          CS-16/CS-17/DDOU*                   FS-20*
CS-3*                               CS-22                               FS-23
CS-3 (CG)*                          CY-1*                               FS-25*
CS-4*                               CY-3                                FS-26(CG)
CS-4 (CG)/FS-1 (CG)*                FS-2                                FS-27
CS-5*                               FS-2 (CG)                           LF-1 (CG)
CS-5 (CG)*                          FS-3*                               LF-2 (CG)
CS-6*/FS-22                         FS-4                                LF-3
CS-6 (CG)*                          FS-7                                LF-3 (CG)
CS-7*                               FS-9*                               LF-4
CS-7 (CG)*                          FS-13                               LF-5
CS-8/FS-21*                         FS-14                               LF-6
CS-8 (CG)                           FS-15                               SD-2/FS-6/FS-8
CS-9                                FS-16*                              SD-3/FTA-3/CY-4
CS-11*                              ..................................  ........................................
----------------------------------------------------------------------------------------------------------------
Key: CS = Chemical Spill.
 CY = Coal Yard.
 DDOU = Drum Disposal Operable Unit.
 FS = Fuel Spill.
 FTA = Fire Training Area.
 LF = Landfill.
 SD = Storm Drain.
 CG = U.S. Coast Guard.
* Includes structure(s) at site.

                                            Table 2.--No Action Sites
----------------------------------------------------------------------------------------------------------------

----------------------------------------------------------------------------------------------------------------
CS-5 (CG)*                          FS-2 (CG)                           LF-2 (CG)
CS-7*                               FS-3*                               LF-3
CS-7 (CG)*                          FS-15                               LF-3 (CG)
CS-12*                              FS-16*                              LF-5
CY-1*                               FS-27                               LF-6
CY-3                                LF-1 (CG)                           ........................................
----------------------------------------------------------------------------------------------------------------
Key: CS = Chemical Spill.
 CY = Coal Yard.
 FS = Fuel Spill.
 FTA = Fire Training Area.
 LF = Landfill.
 SD = Storm Drain.
 USCG = U.S. Coast Guard.
* Includes structure(s)

                                      Table 3.--Sites Where Action Occurred
----------------------------------------------------------------------------------------------------------------

----------------------------------------------------------------------------------------------------------------
CS-1*                               CS-8 (CG)*                          ........................................
CS-1 (CG)*                          CS-9                                FS-14
CS-2                                CS-11*                              FS-17
CS-2 (CG)*                          CS-14*                              FS-18*
CS-3*                               CS-15                               FS-19

[[Page 42001]]

CS-3 (CG)*                          CS-16/CS-17/DDOU*                   FS-20*
CS-4*                               CS-22                               FS-23
CS-4 (CG)/FS-1 (CG)*                FS-2                                FS-25*
CS-5*                               FS-4                                FS-26 (CG)
CS-6*/FS-22                         FS-7                                LF-4
CS-6 (CG)*                          FS-9*                               SD-2/FS-6/FS-8
CS-8/FS-21*                         FS-13                               SD-3/FTA-3/CY-4
----------------------------------------------------------------------------------------------------------------
Key: CS = Chemical Spill.
 CY = Coal Yard.
 DDOU = Drum Disposal Operable Unit.
 FS = Fuel Spill.
 FTA = Fire Training Area.
 LF = Landfill.
 SD = Storm Drain.
 USCG = U.S. Coast Guard.
* Includes structure(s)

 [FR Doc. E7-14677 Filed 7-31-07; 8:45 am]

BILLING CODE 6560-50-P