Appendix M: Installation Narrative Summaries - denix

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In 1880 Dover Powder Depot, now known as Picatinny Arsenal,
was established to store the gunpowder needed to manufacture
ammunition. From 1898 to the early 1970s, the installation
manufactured explosives, propellants, and ammunition. It now
houses the Armament Research, Development and
Engineering Center (ARDEC). EPA placed ARDEC on the NPL
in February 1990. The Army and EPA signed an interagency
agreement (IAG) in July 1991. In FY91, the installation
identified 156 sites including a burning ground, landfills,
underground storage tanks, former production areas, and
former testing sites. Releases of volatile organic compounds
(VOCs), explosives, and heavy metals from these sites have
contaminated groundwater, surface water, sediment, and soil.
The remedial investigation and feasibility study (RI/FS) in FY91
divided the identified sites at the installation into 16 areas. In
FY96, the installation's technical review committee was
converted to a Restoration Advisory Board (RAB). In FY98 and
FY05, the installation procured technical assistance for public
participation (TAPP) contracts to provide technical support for
the RAB. A community relations plan (CRP) was developed in
FY00. Five-year reviews were completed in FY01 and FY06.
Environmental studies initially identified 175 sites at the
installation, 113 of which are response complete (RC), mostly
through consolidation and identification of ineligible sites from
the original list. The Army and EPA have signed four Records
of Decision (RODs). The cleanup progress at ARDEC for FY02
through FY05 is detailed below.
In FY02, The installation submitted the report on the effects of
contaminated or potentially contaminated fish in ponds and
lakes. Treatment of tetryl-contaminated soil using bioslurry
continued.
In FY03, the installation completed FSs for Sites 180 and
25/26. Regulators determined that an FS for Site 22 was not
needed. Eight sumps, drywells, and other structures were
investigated and eliminated. The installation signed a decision
document addressing six lead-contaminated areas around the
arsenal. The installation completed the cap for Site 20/24. The
Army investigated midvalley groundwater and submitted RI
reports on over 60 sites to the regulators. The installation
combined RI concept sites based on geography and plan of
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action, resulting in RC for 84 sites. The Army completed the
Phase III inventory of closed, transferred, and transferring
(CTT) ranges and sites with unexploded ordnance (UXO),
discarded military munitions, or munitions constituents. Military
Munitions Response Program (MMRP) sites were identified.
In FY04, the Army and EPA signed the Area D Groundwater
ROD for the replacement of the pump-and-treat hydraulic
barrier with a permeable reactive barrier and monitored natural
attenuation (MNA). The installation completed the removal of
sediment for the retention basin of Bear Swamp Brook and the
proposed plans (PPs) for Site 25/26 and Area E. The
installation removed lead-contaminated soils at six sites and
submitted the RI Report for all sites in Areas H, I, J, and K. The
Army approved FSs for Sites 64/104 and 180, and Groups 1
and 3. Under the MMRP, the Army provided the CTT report to
regulators for review.
In FY05, the installation completed three RODs for the Post
Farm Landfill, Green Pond Brook and Site 34 of the Burning
Grounds. Six major RI reports have been approved that
address over 70 sites. The installation submitted FSs for the
former Defense Reutilization and Marketing Office (DRMO)
Yard and 25 sites. Additionally, sump and dry well removals
were completed. The installation completed five pilot studies of
contaminated groundwater, including magnus techniques for
biomediation and a nano-iron groundwater study. The Army
approved a TAPP contract for the installation.
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The Army awarded a performance-based contract (PBC) for
most of the Installation Restoration Program (IRP) sites. The
installation submitted FSs for Building 31/33 and the Midvalley
Area. The installation also initiated the remedial design for the
permeable reactive wall and MNA for Area D Groundwater, the
Green Pond Brook ROD, the Post Farm, and long-term
monitoring. The Army submitted an ecological risk assessment
for Phases I and III. The installation completed the Area B PP
for pubic notice. ARDEC completed a 5-year review and EPA
agreed with the determinations.
Legal issues delayed RODs for Areas B and E Groundwater
and delayed submittal of the PPs for Group 1, Group 3, Site 31,
and Area C Groundwater. Technical issues delayed the ROD
for 13 sites with institutional controls (ICs), which now require
an FS. Technical issues also delayed the PP for Site 180.
Regulatory and legal issues delayed the Site 25/26 ROD and
PPs for Site 25 and Building 31/33.
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The installation conducted a historical records review (HRR) to
determine installation MMRP sites and develop a site
inspection (SI) work plan. The Army approved the HRR and
submitted it to the regulators. The Army also signed a
time-critical removal action for off-site UXO contamination from
a 1926 explosion. The neighboring mining operation had
discovered up to seven UXO on the property during mining
operations. A contract was awarded to initiate the action.
Funding issues delayed the SI for all installation MMRP sites.
The installation did not update the CRP to ensure that off-site
issues and the results of the HRR could be incoporated into the
document.
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Plan of action items for U.S. Army Armament Research,
Development and Engineering Center are grouped below
according to program category.
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0 Implement RODs for Area D Groundwater, Green
Pond Brook, and Post Farm in FY07-FY08.
0 Complete RODs for Areas B and E Groundwater,
and 13 sites with ICs in FY07-FY08.
0 Achieve remedy in place at 12 PBC sites in
FY07-FY08.
0 Submit PPs for Groups 1 and 3 Sites, the
former DRMO Yard, Area C Groundwater, and 25
sites with ICs in FY07-FY08.
0 Complete FSs for Midvalley groundwater and 25
sites in FY07-FY08.
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0 Conduct removal action of off-site UXO
contamination in FY07-FY08.
0 Receive regulatory approval and implement the
SI work plan in FY07-FY08.
M-198
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