Appendix M: Installation Narrative Summaries - denix

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The mission of Andersen Air Force Base (AFB) is to provide
troops, equipment, and facilities in the Pacific. EPA placed the
installation on the NPL in October 1992 and the Air Force
signed a federal facility agreement (FFA) in March 1993. In
2005, the BRAC Commission recommended Anderson AFB for
realignment. Preliminary assessments (PAs) have identified
landfills, waste piles, fire training areas, hazardous waste
storage areas, and spill sites. In 1995, the technical review
committee was converted to a Restoration Advisory Board
(RAB). The base community relations plan was updated in
FY98. A 5-year review was completed in FY04.
The 50 sites identified at Andersen AFB were consolidated into
39 sites and grouped into 6 operable units (OUs). To date,
Guam EPA and EPA Region 9 have signed Records of
Decision (RODs) for the Marianas Bonins (MARBO) OU, the
Harmon OU, and the Urunao OU. The cleanup progress at
Andersen AFB for FY02 through FY05 is detailed below.
In FY02, the installation submitted engineering evaluation and
cost analysis (EE/CA) reports for Sites FTA 2 and Landfill (LF)
8 for review by regulators. Groundwater monitoring continued at
the installation. The Harmon OU ROD was approved and
signed by EPA Region 9 and awaited signature by the Guam
EPA and the Air Force.
In FY03, the installation continued long-term operations for
Sites LF 2 and FTA 2, as well as groundwater monitoring for
the MARBO and Main Base OUs. Negotiations with regulators
resulted in reducing the required number of wells, frequency of
sampling, and number of analytes. The base finalized two
EE/CA reports for LFs 8 and 17, and FTA 2, the no further
remedial action (RA) planned report for Site CSA 1, and two
remediation verification reports (RVRs) for the polychlorinated
biphenyl (PCB) storage area and LF 2, and converted three
areas of concern (AOCs) to Installation Restoration Program
(IRP) sites. Additionally, 23 AOCs were added to the IRP. The
installation initiated the MARBO 5-year review. RAB activities
continued and the installation maintained good communication
with regulators.
In FY04, Andersen AFB initiated the preliminary design of the
Urunao dump site remediation. The installation completed the
Air Force
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RA for Site WP 6 and obtained regulatory inspection and
approval. The interim RA (IRA) involving the fence installation
land use control for Site LF 10 was completed. The installation
finalized Sites WP 6 and LF 10 RVRs. Groundwater sampling
was conducted as scheduled for MARBO and the Main Base.
The installation finalized the 5-year review for final coordination
and signatures.
In FY05, Andersen AFB began EE/CA investigations for former
AOC Sites DA 52, 53, and 54, completed fieldwork for 13 of 23
former AOCs [Northeast (NE) sites], and began drafting PA/site
inspection (SI) reports. The installation converted 33 AOCs (NE
sites) to IRP sites, bringing the total site count to 76. The
Urunao ROD was signed by all three parties. The remedial
design for the Urunao Dump site was completed. In addition,
the no action ROD for the Harmon OU was signed by the Air
Force. The installation continued Main Base and MARBO
groundwater monitoring and completed two new borings in
MARBO and one new boring at Site FTA 2. The Air Force
began the PAs for all newly identified sites (former AOCs or NE
sites). The Air Force also began the PAs for Military Munitions
Response Program (MMRP) sites.
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Andersen AFB completed the IRA and RVR for the Ritidian
Dump site. The installation also completed the IRA for LF 14,
and started the IRA for LFs 19 and 20. Additionally, the
installation completed a remedial investigation and feasibility
study (RI/FS) for former AOC Sites DA 52, 53, 54, and FTA 2.
The Air Force finalized the PA/SI for 33 former AOCs, and two
additional solid waste management unit sites were added to the
IRP site list. The installation awarded the $8.4 million
RA-construction Part 1 for the Urunao dump sites, and signed a
30-month right of entry between the landowner and the Air
Force to enter the site for cleanup. The cost of completing
environmental restoration has changed significantly due to
changes in estimating criteria.
Administrative issues delayed the RA project for the Urunao
Dump site and LFs 8, 13, and 17. Technical issues delayed the
IRA for LFs 19 and 20. Technical issues also delayed
finalization of the ROD for Main Base Sites FTA 2, WPs 1 and
2, and LFs 14, 19, and 20. Administrative issues delayed the
finalization of the RI/FS report and no action ROD for the
Northwest (NW) Field OU.
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The Air Force continued the PAs at all identified sites. Cost
estimates were updated and the initial Munitions Response Site
Prioritization Protocol rating for each MMRP site was
developed.
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Plan of action items for Andersen Air Force Base are grouped
below according to program category.
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0 Continue the IRA for LFs 19 and 20 in FY07.
0 Obtain signatures on two RODs for the Main
Base OU in FY07.
0 Award cleanup contracts for LFs 8, 13, and
17 in FY07.
0 Develop exit strategy and shutdown of Site
FTA 2 remedial system (soil vapor
extraction) in FY07.
0 Finalize the ROD for Main Base Sites FTA 2,
WPs 1, and 2, and LFs 14, 19, and 20 in FY07.
0 Finalize the RI/FS report and a no action ROD
for the NW Field OU in FY07.
0 Execute the Urunao Dump site cleanup action
in FY07-FY10.
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0 Complete the PAs and SIs at all identified
sites by the end of FY07 and FY10,
respectively.
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