Appendix M: Installation Narrative Summaries - denix

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During the 1940s and 1950s, Vint Hill Farms Station served as
a training center for Signal Corps personnel and as a refitting
station for signal units. During FY90, a preliminary assessment
(PA) identified 26 sites, including underground storage tanks
(USTs), landfills, lagoons, storage areas, pit areas, fire training
areas, disposal areas, spill sites, areas with
asbestos-containing materials, lead-based paint areas, and
transformers containing polychlorinated biphenyls (PCBs). Also
in FY90, soil and groundwater sampling revealed petroleum
and solvent contamination. The installation conducted removal
actions for USTs, contaminated soil, and PCB-containing
transformers. In 1993, the BRAC Commission recommended
closure of Vint Hill Farms Station. The installation formed a
Restoration Advisory Board (RAB) in FY95, which adjourned in
FY06. Vint Hills Farm Station officially closed on October 1,
1997. The Army completed a 5-year review of Sites 1 and 39 in
FY05.
Environmental studies following the PA identified a total of 39
sites at Vint Hills Farms Station requiring additional
investigation or cleanup. With the exception of Area Requiring
Environmental Evaluation (AREE) 34, discovered post transfer,
all environmental investigation and remediation is complete.
The Army has transferred the entire 696 acres, including the
final 5.3 acres transferred in FY03. The cleanup progress at
Vint Hill Farms Station for FY02 through FY05 is detailed
below.
In FY02, the Army completed remedial actions (RAs) at three of
the remaining four sites, concluding cleanup of the remaining
nontransferred acres.
In FY03, the Army completed a finding of suitability to transfer
and transferred the remaining 5 acres by deed, completing the
transfer of the entire 696 acres. Investigation of AREE 34
defined a shallow localized area of groundwater contamination,
as well as some contamination in the deep aquifer.
Contamination is upgradient of Production Well #1, which
provides water to the new residents living on the property. Due
to this potential exposure pathway, additional characterization
was required to determine the need for an RA. The Army
completed its Military Munitions Response Program (MMRP)
inventory for this installation. Vint Hill Farms Station had one
Army
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site, a pistol range, remediated under the Installation
Restoration Program (IRP).
In FY04, the Army performed the final sampling of Site 20
(former Army/Air Force gas station) and received a no further
action letter from the regulators. Environmental regulators
reduced the Site 1 quarterly sampling to annual sampling and
decreased the list of analytes required. The installation
completed the remedial investigation of AREE 34 and used
sensing technology and EPA's Triad approach to determine the
extent of contamination. The installation completed the
feasibility study and proposed plan for AREE 34. The
installation held a public meeting to present the proposed
remedy (monitored natural attenuation and land use controls)
for AREE 34.
In FY05, the Army completed a 5-year review of Sites 1 and 39.
All institutional controls were successfully maintained. The
Army conducted annual sampling at Site 1 with results
consistent with past sampling events.
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Vint Hill Farms Station and the Virginia Department of
Environmental Quality signed a decision document and began
the remedy process for AREE 34 requiring hot spot removal
and long-term management. The installation awarded a
performance-based contract for in situ treatment and began
fieldwork. The Army conducted annual sampling at Site 1. The
cost of completing environmental restoration has changed
significantly due to technical issues.
The Vint Hill Farms Station RAB offically adjourned.
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The Army conducted no MMRP actions at this installation.
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Plan of action items for Vint Hill Farms Station are grouped
below according to program category.
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0 Perform annual sampling for Site 1 in FY07.
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There are no MMRP actions scheduled for FY07 or
FY08.
M-201