Appendix M: Installation Narrative Summaries - denix
Appendix M: Installation Narrative Summaries - denix
Appendix M: Installation Narrative Summaries - denix
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The Louisiana Army Ammunition Plant (AAP) manufactures<br />
ammunition parts for the Army. EPA placed the installation on<br />
the NPL in March 1989 and signed an interagency agreement<br />
(IAG) with the Army later that year. Sites identified at the<br />
installation include lagoons, burning grounds, and landfills<br />
contaminated with explosives and plating wastes. Studies<br />
identified no off-site contamination; however, groundwater<br />
monitoring wells at the installation did reveal contamination with<br />
explosive compounds, such as TNT, RDX, and HMX. The<br />
potential for off-site migration of contaminants required<br />
groundwater monitoring beyond the northern and southern<br />
boundaries of the installation; the groundwater monitoring still<br />
continues. The Army conducted 5-year reviews for the interim<br />
remedial action at the Area P lagoons; one in FY94 that<br />
confirmed that the source of the contamination had been<br />
removed and another in FY00 that received EPA approval. The<br />
Army also completed a 5-year review in FY06.<br />
The Army identified seven sites during a preliminary<br />
assessment and site inspection (SI) in FY78 and 13 additional<br />
sites in FY93 and FY94 (the Y-line etching facility, nine<br />
load-assemble-pack lines, and three test areas). Between FY89<br />
and FY90, the installation incinerated almost 102,000 tons of<br />
explosives-contaminated soil and treated more than 53 million<br />
gallons of contaminated water. The Army identified two<br />
additional Military Munitions Response Program (MMRP) sites<br />
in FY03. The installation completed one Record of Decision<br />
(ROD) and one No Further Action ROD. The cleanup progress<br />
at Louisiana AAP for FY02 through FY05 is detailed below.<br />
In FY02, the Army initiated an inventory of closed, transferred,<br />
and transferring (CTT) ranges and sites with unexploded<br />
ordnance, discarded military munitions, or munitions<br />
constituents.<br />
In FY03, the installation completed a draft remedial<br />
investigation (RI) for Sites 09 (nine load lines and three test<br />
areas) and 10 (groundwater for the entire installation). The<br />
installation also completed a human health assessment and an<br />
ecological risk assessment for these sites. The Army completed<br />
the MMRP CTT ranges and sites inventory that identified two<br />
MMRP sites at this installation.<br />
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In FY04, the Army awarded a performance-based contract<br />
(PBC) for remaining environmental restoration sites. The<br />
installation completed the MMRP SI.<br />
In FY05, the installation completed the RI for Sites 09 and 10.<br />
In accordance with congressional directive, the Army<br />
transferred the installation to the Louisiana Army National<br />
Guard.<br />
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The Army completed a 5-year review.<br />
The installation completed a draft groundwater feasibility study<br />
(FS) and ROD for soils Site 09. However, administrative issues<br />
delayed a final FS, a ROD for groundwater, remedy in<br />
place/response complete (RIP/RC) achievement, and the PBC<br />
award. Technical issues delayed proposed plans (PPs) for the<br />
soils of nine load lines and three test areas.<br />
Louisiana AAP conducted public meetings to discuss PPs for<br />
soils and groundwater treatment.<br />
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Louisiana AAP conducted a stakeholder briefing on the MMRP<br />
SI results.<br />
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Plan of action items for Louisiana Army Ammunition Plant are<br />
grouped below according to program category.<br />
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0 Complete FS and ROD for groundwater in FY07.<br />
0 Achieve RIP/RC in FY07.<br />
0 Complete the PBC in FY07.<br />
0 Initiate long-term management in FY07.<br />
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0 Initiate RI/FS for three munitions response<br />
sites in FY07.<br />
0 Complete RI/FS and ROD in FY08.<br />
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M-118
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