Appendix M: Installation Narrative Summaries - denix

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Defense Distribution Depot (DDD) Memphis is approximately
642 acres divided into two areas: the Main Installation (MI) and
Dunn Field (DF). The installation divided all CERCLA sites and
the remaining underground storage tanks (USTs) into four
operable units. EPA placed DDD Memphis on the NPL in
October 1992. In FY93, the installation formed a Restoration
Advisory Board (RAB). DDD Memphis, EPA, and Tennessee
Department of Environment and Conservation (TDEC) signed a
federal facility agreement (FFA) in March 1995. In September
1995, the BRAC Commission recommended closure of DDD
Memphis. In FY96, DLA completed a BRAC cleanup plan that
serves as the Site Management Plan and contains the master
schedule, which has been updated annually. Mission activities
ceased at DDD Memphis in FY97. All USTs were removed or
closed in place. In FY98, DDD Memphis developed a
community relations plan. The installation completed its first
5-year review in FY03.
Site studies beginning in FY81 identified approximately 93
sites, including a pentachlorophenol (PCP) wood preservative
treatment vat and UST, and areas of contaminated soil and
groundwater. The PCP vat and UST were removed in FY85. An
interim remedial action (RA) Record of Decision (ROD) for DF
groundwater was signed in FY96. RODs for MI and DF were
signed in FY01 and FY04, respectively. In FY01, the RAB
obtained a Technical Assistance for Public Participation (TAPP)
grant. The cleanup progress at DDD Memphis for FY02 through
FY05 is detailed below.
In FY02, DDD Memphis completed the DF remedial
investigation (RI) and soil vapor extraction (SVE) treatability
study. DDD Memphis completed the MI remedial design (RD)
work plan, conducted the MI groundwater enhanced
bioremediation treatment (EBT) pilot test and completed the DF
Site 60 removal action memorandum. The Department of Army
signed three deeds for property transferred in findings of
suitability to transfer (FOSTs) 1 and 2. The RAB's TAPP
contract was completed.
In FY03, DDD Memphis finalized the DF RI, two feasibility
studies, a proposed plan and conducted a public comment
period for the DF ROD. DDD Memphis completed the DF Site
60 removal action, installed additional monitoring wells to
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determine the extent of increased volatile organic compound
(VOC) concentrations down-gradient of DF, completed the MI
EBT pilot test, completed the DF disposal sites pre-design
investigation and work plan, completed the former PCP dip vat
additional sampling work plan and fieldwork, completed the first
5-year review, and conducted a public meeting for the DF ROD.
DDD Memphis also submitted FOST 3 for approximately 357
acres of the MI for public comment. DLA approved an ordnance
and explosives statement of clearance for the Military Munitions
Response Program (MMRP).
In FY04, DLA, EPA, and TDEC signed the DF ROD. The
Department of Army signed FOST 3. DDD Memphis completed
the MI and the DF disposal sites RD, submitted FOST 4 for
approximately 41 acres at DF for public comment, and
conducted the DF source areas pilot study of SVE and
zero-valent iron (ZVI). The BRAC cleanup team initiated early
implementation of the selected remedy (EISR) from the DF
ROD to address contaminant concentrations down-gradient
from the proposed off-site permeable reactive barrier (PRB)
location. DDD Memphis conducted a partnering session to
assist the transition from the RD contractor to the remedial
action RA contractor.
In FY05, DDD Memphis completed the FOST 4 public comment
period, with the Department of the Army (Army) signature. DDD
Memphis completed the MI RA work plan and received
EPA/TDEC approval. DDD Memphis began the DF disposal
sites RA. DDD Memphis completed the EISR fieldwork and
submitted and received EPA/TDEC approval of the EISR
Remedial Action Completion Report (RACR). DDD Memphis
completed the MI land use control implementation plan (LUCIP)
annual inspection.
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The Army signed one deed and one letter of assignment to the
Department of the Interior for the FOST 3 property. The Army
also signed one deed for a portion of the FOST 4 property and
offered the remaining property for public sale. DDD Memphis
completed the DF disposal sites RA, and submitted and
received EPA/TDEC approval of the disposal sites RACR. DDD
Memphis completed construction and initiated the MI RA EBT.
The installation began preparing the DF source areas RD and
completed additional source areas RD investigation fieldwork
regarding the effectiveness of SVE on the loess formation. DDD
Memphis also began preparing the DF off-depot groundwater
RD for which the installation completed the ZVI PRB
implementation study work plan and fieldwork. DDD Memphis
completed the MI LUCIP annual inspection.
DOD Memphis delayed initiation of DF off-depot groundwater
RA until FY08 in order to modify the selected ZVI PRB
component of the groundwater remedy. Additional information
pertaining to the hydrology and contaminant extent since
completion of the ROD has created a need to consider the
selection of a ZVI permeable reactive barrier to remediate
chlorinated volatile orgnaic compounds (CVOCs) within the
groundwater plume.
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DLA conducted no MMRP actions at this installation.
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Plan of action items for Defense Distribution Depot Memphis
are grouped below according to program category.
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0 Complete DF source areas RD in FY07.
0 Initiate DF source areas RA in FY07.
0 Complete DF off-depot groundwater RD in FY07.
0 Complete second 5-year review in FY07.
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There are no MMRP actions scheduled for FY07 or
FY08.
M-45