Appendix M: Installation Narrative Summaries - denix
Appendix M: Installation Narrative Summaries - denix
Appendix M: Installation Narrative Summaries - denix
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Barstow Marine Corps Logistics Base (MCLB) consists of<br />
Yermo Annex, Nebo Main Base, and the rifle range. Vehicle<br />
maintenance, repair and maintenance of weapons and missile<br />
systems, and storage of petroleum and chemical products<br />
contributed to contamination. The site types include sludge<br />
disposal areas, plating waste disposal areas, low-level<br />
radioactive waste storage areas, spill sites, underground<br />
storage tank (UST) sites, and evaporation ponds. EPA placed<br />
the installation on the NPL in November 1989 after high<br />
concentrations of trichloroethylene (TCE) were detected in<br />
groundwater monitoring wells. The installation signed a federal<br />
facility agreement (FFA) in October 1990. In 2005, the BRAC<br />
Commission recommended Barstow MCLB for realignment.<br />
The installation formed a technical review committee, prepared<br />
a community relations plan (CRP), and established an<br />
information repository and administrative record in FY91. The<br />
CRP was revised in FY02. Public meetings are held annually;<br />
however, no interest exists in forming a Restoration Advisory<br />
Board. In FY03, the installation completed a 5-year review.<br />
To date, 39 CERCLA and 3 UST regulation sites have been<br />
identified at this installation. The installation has completed<br />
Records of Decision (RODs) for Operable Units (OUs) 1, 2, 3,<br />
4, 5, and 6. The installation closed OUs 3 and 4 in FY00. The<br />
cleanup progress at Barstow MCLB for FY02 through FY05 is<br />
detailed below.<br />
In FY02, the installation completed closeout of OUs 5 and 6.<br />
The extended RCRA facility assessment report for CERCLA<br />
Area of Concern (CAOC) 39 was finalized. The CRP was<br />
revised. A 5-year review and an explanation of significant<br />
differences (ESDs) to not install the OUs 1 and 2 off-base<br />
groundwater extraction system began. The Navy completed an<br />
inventory of all Military Munitions Response Program (MMRP)<br />
sites and identified no MMRP sites at this installation.<br />
In FY03, the installation completed a 5-year review. The OU 7<br />
remedial investigation (RI) and OU 2 Nebo North air<br />
sampling/soil vapor extraction (AS/SVE) treatability study<br />
fieldwork was completed. The system at OU 2 Nebo South was<br />
expanded. The installation tracked the methyl tertiary-butyl<br />
ether (MTBE) plume that has commingled with the base volatile<br />
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organic compound (VOC) plume and determined that a private<br />
entity was the source.<br />
In FY04, the installation completed the OU 2 Nebo North<br />
AS/SVE report. Remedial action (RA) operations (RA-O) and<br />
long-term management (LTM) continued at CAOCs 37 and 38,<br />
and landfill caps. The installation worked with Regional Water<br />
Quality Control Board and the private entity to manage the<br />
MTBE plume. The installation requested compensation from the<br />
private entity. The installation submitted the draft OU 7 RI<br />
report. Technical memorandums in support of an ESD for OUs<br />
1 and 2 were completed.<br />
In FY05, the installation completed repairs at CAOC 7. RA-O at<br />
CAOCs 37 and 38, and landfill cap LTM continued. The OUs 1<br />
and 2 optimization studies were completed and preparation of<br />
ESDs was started. The installation continued working with the<br />
Navy's Office of the General Council (OGC) to recapture funds<br />
related to the MTBE plume. The Navy obtained closures from<br />
the State for 44 USTs.<br />
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Barstow MCLB, EPA, and the State of California approved the<br />
OU 2 Nebo South ROD. The installation implemented RA-O<br />
activities for groundwater at CAOCs 37 and 38 and LTM for<br />
landfills. Coordination with OGC to recapture funds related to<br />
the MTBE plume continued. The installation initiated an<br />
ecological risk assessment (ERA) and RI for OU 7.<br />
The ESD for OU 1 was delayed due to regulatory review.<br />
Regulatory issues also delayed the remedial design (RD)/RA<br />
work plan and design sampling activities at CAOCs 37 and 38.<br />
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The Navy has identified no MMRP sites at this installation.<br />
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Plan of action items for Barstow Marine Corps Logistics Base<br />
are grouped below according to program category.<br />
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0 Complete ERA, RI/feasibility study, and<br />
removal actions for OU 7 in FY07-FY08.<br />
0 Conduct a 5-year review for OU 1 and OU 2,<br />
and address regulatory ESD concerns in FY08.<br />
0 Complete RD/RA work plan and remediation<br />
technology installation at Nebo North in<br />
FY08.<br />
0 Continue RA-O and LTM activities for<br />
groundwater and soil (landfills) in FY08.<br />
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There are no MMRP actions scheduled for FY07 or<br />
FY08.<br />
M-27
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