Appendix M: Installation Narrative Summaries - denix

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Operations at the Lake City Army Ammunition Plant (AAP), a
government-owned, contractor-operated facility, include the
manufacture, storage, and testing of small-arms munitions.
Principal site types at the installation include abandoned
disposal pits, sumps, firing ranges, old lagoons, old dumps, and
closed RCRA lagoons and burning grounds. Sampling at seven
representative areas identified groundwater contaminated with
volatile organic compounds (VOCs), explosives, and heavy
metals. EPA placed Lake City AAP on the NPL in July 1987,
and EPA and the Army signed an interagency agreement (IAG)
in September 1989. The installation formed a Restoration
Advisory Board (RAB) in FY97. The Army completed a 5-year
review in FY05.
Environmental studies identified 73 sites at the installation,
which have been consolidated into 35 sites for further
investigation. The Army completed two Records of Decision
(RODs). The cleanup progress at Lake City AAP for FY02
through FY05 is detailed below.
In FY02, the Army completed an environmental database for all
of the operable units (OUs), resulting in improved work
planning, cost reduction, and better management decisions.
Characterization work continued in the Northeast Corner OU
(NECOU) and Area 18 OUs.
In FY03, the installation completed permeable reactive wall
plume delineation activities, which included the collection and
review of data, and prepared a summary report. The field
characterization work plan for the Installationwide OU (IWOU)
was completed. The Army installed monitoring wells to confirm
and monitor VOC plumes in NECOU. The installation
completed source characterization sampling, completed field
screening, and installed approximately 35 of the 70 total
monitoring wells. The installation initiated the installation of the
remaining 35 wells and began soil sampling. Sampling of Area
18 monitoring wells was completed. The installation continued
pump-and-treat operations to contain contaminated
groundwater. The Army initiated an inventory of closed,
transferred, and transferring (CTT) ranges and sites with
unexploded ordnance, discarded military munitions, or
munitions constituents.
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In FY04, the installation continued operation of the
pump-and-treat system to contain contaminated groundwater
and executed a transition plan from using a total environmental
restoration contract to using a performance-based contract
(PBC). The PBC contractor completed work plans for
completing characterization activities in all OUs. Sampling
activities began in Area 18. The installation began the IWOU
remedial investigation and feasibility study (RI/FS). The PBC
contractor developed a schedule for completion of remedies in
place by FY07. The installation completed a new groundwater
model and developed a groundwater management strategy.
Sampling was completed to validate the public health risk
assessment for the active firing range. The installation prepared
a draft engineering evaluation and cost analysis (EE/CA) for the
non-time critical removal action for five "housekeeping" sites.
The Army completed the CTT ranges and sites inventory and
identified one closed Military Munitions Response Program
(MMRP) site. The installation hosted four RAB meetings and
one RAB workshop.
In FY05, Lake City AAP completed RI activities and removal
actions at three of the five "housekeeping" sites. The
installation executed the pilot tests in Area 18 and NECOU. The
installation also updated the sitewide groundwater model and
monitoring plan. Two additional offsite wells were constructed
and sampled. The Army completed the characterization of an
EE/CA for the inactive sumps. Additionally, pump-and-treat
operations continued. The Army completed its first 5-year
review at Lake City AAP.
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The installation continued to operate the pump-and-treat
system to contain contaminated groundwater. It also completed
RI activities and FSs for the NECOU, IWOU, and Area 18 OU.
Technical and procedural issues delayed the removal actions at
Area 31 and the inactive sumps. At Area 31, Lake City AAP
discovered projectile bodies that contained depleted uranium.
The Army established Area 10 Sand Piles as a separate OU
due to funding issues.
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The Army conducted no MMRP actions at this installation.
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Plan of action items for Lake City Army Ammunition Plant are
grouped below according to program category.
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0 Continue operation of the pump-and-treat
system to contain contaminated groundwater in
FY07.
0 Complete RODs and installation of remedies
for three OUs in FY07.
0 Complete RI/FS for Area 10 in FY07.
0 Complete removal actions at Area 31 and
inactive sumps in FY07.
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There are no MMRP actions scheduled for FY07 or
FY08.
M-109
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