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Appendix M: Installation Narrative Summaries - denix

Appendix M: Installation Narrative Summaries - denix

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March Air Force Base (AFB) was placed on the NPL in<br />

November 1989 and the installation signed a federal facility<br />

agreement (FFA) the following year. In July 1993, the BRAC<br />

Commission recommended realignment to serve as an Air<br />

Reserve Base. Base realignment occurred in April 1996. The<br />

2005 BRAC Commission recommended the installation for<br />

further realignment. A preliminary assessment and site<br />

inspection (PA/SI) identified fire training areas, inactive landfills,<br />

underground storage tanks (USTs), an engine test cell (Site<br />

18), sludge drying beds at a sewage treatment plant, and<br />

various spill sites. March AFB is a joint-use base that uses both<br />

BRAC and Environmental Restoration Account funds to reach<br />

cleanup goals. In FY94, a base technical review committee was<br />

converted to a Restoration Advisory Board (RAB) to support<br />

cleanup efforts. In FY99, a memorandum of agreement was<br />

signed between the Air Force Reserve Command and the Air<br />

Force Base Conversion Agency for sharing environmental<br />

responsibility. The first 5-year review was completed in FY03.<br />

To date, 48 sites have been identified at March AFB and<br />

grouped into 3 operable units (OUs): OUs 1, 2, and 4. Of the 25<br />

BRAC <strong>Installation</strong> Restoration Program (IRP) sites identified, all<br />

Records of Decision (RODs) have been signed. The cleanup<br />

progress at March AFB for FY02 through FY05 is detailed<br />

below.<br />

In FY02, the groundwater pump-and-treat system was initiated<br />

and soil vapor extraction continued at Building 550. The<br />

basewide remedial investigation and feasibility study (RI/FS)<br />

continued and the Site 43 (ST 043) UST soils site was closed.<br />

A project was initiated to characterize mercury found in the<br />

sewer system at the hospital and dental clinic. The modified<br />

portions of the OU 1 plume remedial action (RA) entered<br />

service, which allowed the operating properly and successfully<br />

determination efforts to resume.<br />

In FY03, the Air Force closed the groundwater portion of Site<br />

43, continued RA operation (RA-O) activities at the landfills and<br />

Building 550, and continued the groundwater monitoring<br />

program. The installation also conducted mercury<br />

characterizations and research, and determined that an RA was<br />

not required. The installation completed the first 5-year review.<br />

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In FY04, the Air Force finalized the OU 2 ROD, the OU 4<br />

(formally known as the basewide OU) RI/FS, and the proposed<br />

plan. The installation completed the Weapon Storage Area<br />

(WSA) PA/SI field work and submitted the draft report. RA-O<br />

activities at the landfills and Building 550 continued, as did the<br />

groundwater monitoring program. The Air Force Real Property<br />

Agency (AFRPA) conducted an inventory of Military Munitions<br />

Response Program (MMRP) sites. MMRP sites were identified<br />

on the BRAC portion of the installation.<br />

In FY05, the installation finalized the OU 4 ROD. The Air Force<br />

completed additional field work and the WSA PA/SI report. The<br />

installation continued RA-O activities at two landfills and<br />

Building 550, and continued groundwater monitoring. The<br />

installation also attained the last remedy-in-place milestone at<br />

its BRAC IRP sites. AFRPA began evaluating requirements at<br />

MMRP sites. The RAB met on a quarterly basis.<br />

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March AFB continued RA-O activities at landfills and Building<br />

550, and continued the groundwater monitoring program. The<br />

installation initiated a PA/SI at Site ST 048, a potential source<br />

of groundwater contamination on the eastern boundary of the<br />

base. The installation also initiated a reevaluation of the Site 4<br />

Landfill remedy as a result of the rise in nearby groundwater.<br />

The cost of completing environmental restoration has changed<br />

significantly due to changes in estimating criteria.<br />

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The installation completed MMRP requirement evaluations.<br />

AFRPA either administratively closed or determined, with<br />

regulatory concurrence, no further action requirements for all<br />

MMRP sites.<br />

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Plan of action items for March Air Force Base are grouped<br />

below according to program category.<br />

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0 Continue groundwater monitoring program<br />

including PA/SI at Site ST 048 in FY07.<br />

0 Complete whole base transfer in FY07.<br />

0 Complete Site 4 remedy evaluation in FY07 and<br />

remedy design modification in FY08.<br />

0 Complete RA-O activities at Building 550 in<br />

FY08.<br />

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0 Document closure for three MMRP sites in<br />

FY07-FY08.<br />

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M-121

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