Appendix M: Installation Narrative Summaries - denix

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Hanscom Air Force Base (AFB) supports the electronic system
center. EPA placed the installation on the NPL in May 1994.
Operations at Hanscom AFB have involved generation, use,
and disposal of numerous hazardous substances. Possible
sources of contamination investigated include a former
industrial wastewater treatment system, a former filter
bed/landfill area, a jet fuel residue and tank sludge area, two
landfills, three former fire training areas, a paint waste disposal
area, a mercury spill area, the former aviation fuel handling and
storage facilities, underground storage tanks, and fuel spill
areas. In FY95, the installation converted its technical review
committee to a Restoration Advisory Board. A 5-year review
was completed for the Operable Unit (OU) 2 remedy in FY97.
Another 5-year review was completed for the Hanscom
Field/Hanscom AFB Superfund Site in FY02. Both of these
reviews concluded that the remedies were protective of human
health and the environment. In FY02, a 5-year review was also
completed for two Massachusetts Contingency Plan (MCP)
sites, which recommended continued monitoring.
Studies have identified 22 sites at the installation. Fourteen
sites have been closed out and remedies are in place at the
eight remaining sites. To date, Records of Decision (RODs)
have been signed for OU 3/Installation Restoration Program
(IRP) Sites 6 and 21. An interim ROD was signed for OU 1. The
cleanup progress at Hanscom AFB for FY02 through FY05 is
detailed below.
In FY02, the installation finalized the ROD, continued the
removal action, and began the design and construction of the
final remedy for OU 3/IRP Site 21. In addition, remedial
action-operations (RA-O) continued at OUs 1, 2, 3/IRP Site 6,
the Army and Air Force Exchange Service (AAFES) service
station, and base motor pool sites. The installation completed
the second 5-year review of the Hanscom Field/Hanscom AFB
Superfund Site. The review concluded that the remedies in
place, or programmed, are expected to be protective of human
health and the environment. The installation also completed a
5-year review of two MCP sites that recommended continued
monitoring of both sites.
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In FY03, the installation completed the design and construction
of the final remedy for OU 3/IRP Site 21 and began RA-O. The
remedy incorporated the previous removal action. It is also the
final remedy required for the installation. In addition, RA-O
continued at OUs 1, 2, 3/IRP Site 6, the AAFES service station,
and base motor pool sites.
In FY04, the installation continued RA-O at OUs 1, 2, 3/IRP Site
6, OU 3/IRP Site 21, the AAFES service station, and base
motor pool sites.
In FY05, the installation continued RA-O at OUs 1, 2, 3/IRP Site
6, OU 3 IRP Site 21, the AAFES service station, and base
motor pool sites. The Air Force updated its Military Munitions
Response program (MMRP) inventory. No MMRP sites were
identified at this installation during the inventory development.
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Hanscom AFB continued RA-O at OUs 1, 2, 3/IRP Site 6, OU 3
IRP Site 21, the AAFES service station, and base motor pool
sites.
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The Air Force has identified no MMRP sites at this installation.
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Plan of action items for Hanscom Air Force Base are grouped
below according to program category.
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0 Continue RA-O at OUs 1, 2, 3/IRP Site 6, OU
3/IRP Site 21, AAFES service station and base
motor pool sites in FY07.
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There are no MMRP actions scheduled for FY07 or
FY08.
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M-95