Appendix M: Installation Narrative Summaries - denix

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In July 1991, the BRAC Commission recommended closure of
Hunter's Point Annex-Treasure Island Naval Station. The
station ceased operations on April 1, 1994, and is now in
caretaker status and is the responsibility of the Naval Facilities
Engineering Command's Southwest Division. Parts of the
installation have been leased to private parties. Site types
include landfills and land disposal areas, containing primarily
heavy metals and volatile organic compounds (VOCs), and
radioactive materials, primarily cesium and radium. EPA placed
the installation on the NPL in November 1989 and signed a
federal facility agreement (FFA) with the Navy in September
1990, which was revised in January 1992. A BRAC cleanup
team (BCT) was formed in FY94. The installation's technical
review committee was converted to a Restoration Advisory
Board. The installation's FY89 community relations plan was
revised in FY97 and in FY04. The BCT updates the Site
Management Plan quarterly.
To date, environmental studies at the installation have identified
78 CERCLA sites. The installation completed a Record of
Decision (ROD) for no further action at Parcel A and conveyed
the parcel to the San Francisco Redevelopment Agency
(SFRA). The cleanup progress at Hunter's Point
Annex-Treasure Island Naval Station for FY02 through FY05 is
detailed below.
In FY02, the installation completed time-critical removal action
closeout reports for Parcels C and D. The Parcel D draft
feasibility study (FS) was completed. The Navy has completed
an inventory of all Military Munitions Response Program
(MMRP) sites. No MMRP sites were identified at this time.
In FY03, the installation completed the Parcel A draft final
finding of suitability to transfer (FOST). The installation also
completed the Parcel B Risk Management Review. The Navy
successfully completed innovative groundwater cleanup
technology under treatability studies (TSs) for the plumes and
data gap sampling for Parcels C and E.
In FY04, the installation finalized the FOST for Parcel A. The
BCT reached consensus to amend the existing ROD with a
Technology Memo in Support of a ROD Amendment (TMSRA)
at Parcel B. The installation achieved significant VOC
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contaminant reduction through zero-valent iron (ZVI) in situ
treatments under a TS in Parcel C. The Navy completed a
removal action in Parcel D, through which contaminated soil
was removed and soil stockpiles were sampled and removed.
Parcel E was divided, with a Parcel E2 created as a new
operable unit comprising the industrial landfill and adjacent
areas. The installation began work on a remedial investigation
(RI)/FS for Parcel E2. Two data gaps investigations were
performed and summarized in a validation study report for the
remainder of Parcel E. The Navy identified a major source of
polychlorinated biphenyls (PCBs) contamination. In addition,
the basewide Historical Radiological Assessment (HRA) was
finalized, identifying 91 rad-impacted areas.
In FY05, the installation conveyed Parcel A to the SFRA. The
installation finalized the risk assessment methodologies with
the regulatory agencies and the SFRA, which enabled the
TMSRA and FS to proceed. The Navy treated additional sites
on Parcels B and C with ZVI or through bioremediation. The
installation began removal actions along the bay shoreline in
Parcels E and E2 to remove radioactive contaminants and
PCBs. In addition, the installation completed TMSRA on Parcel
B and issued a new proposed plan (PP) to support a ROD
amendment. The installation completed FSs on Parcels C, D,
and F, and an RI/FS on Parcel E2. The FSs for Parcels C and
D were prepared in accordance with requirements in the
conveyance agreement. The installation finalized the validation
study for Parcel F and initiated the FS. The installation
completed three removal actions on Parcel E. The Navy also
conducted radiological surveys identified in the HRA.
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Hunters Point Annex-Treasure Island Naval Station completed
four removal actions on Parcels E and E2. The Navy continued
radiological surveys identified in the HRA. The installation
completed methane and VOC migration investigations to
support the transfer of Parcel B. The installation continued TSs
using ZVI and bioremediation. The Navy completed removal
actions at the Metal Reef, Metal Slag, and PCB sites.
Approximately 15 percent of the radiological waste disposed at
Site IR 02 was removed, and the installation determined
additional engineering controls are necessary. The Navy
revised the basewide radiological action memo and began
removal actions at Parcel B. The cost of completing
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environmental restoration has changed significantly due to
technical issues, regulatory issues, and changes in estimating
criteria.
Regulatory issues delayed the draft Parcel B TMSRA and new
PP to support a ROD amendment. Completion of revised FS
and FS radiological addenda for Parcels C, D, and F, and an
RI/FS for Parcel E2 were delayed due to technical issues.
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The Navy has identified no MMRP sites at this installation.
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Plan of action items for Hunter's Point Annex-Treasure Island
Naval Station are grouped below according to program
category.
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0 Complete TMSRA on Parcel B and issue a new PP
to support a ROD amendment in FY07.
0 Complete FS and FS radiological addenda on
Parcels C, D, and F, and an RI/FS on Parcel
E2 in FY07.
0 Complete removal actions at Metal Reef, Metal
Slag, and PCB sites in FY07.
0 Complete removal action at Site IR 02 and
evaluate methods to address the deeper waste
in FY07.
0 Continue radiological surveys identified in
the HRA in FY07.
0 Remove unsound wooden piers and complete
radiological removal action at Parcel B in
FY07.
0 Conduct ZVI TS at Parcel D in FY07.
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There are no MMRP actions scheduled for FY07 or
FY08.
M-99