Arnold Engineering Development Center Coffee and Franklin Counties, Tennessee Proposed NPL
FFID: TN457172404400 Media Affected: Groundwater, surface water, sediment,
Size: 40,000 acres
Funding to Date: $78.0 million
Mission: Maintained and repaired ships and provided logistical support
for assigned ship and service craft Estimated Cost to Completion (Completion Year): $46.2 million (FY2032) ✦
HRS Score: Simulate flight conditions Final RIP/RC Date for IRP Sites: FY2009
IAG Status: 50.00; proposed for NPL in August 1994 Final RIP/RC Date for MMRP Sites: N/A
Contaminants: VOCs, solvents, PCBs, heavy metals, acids, petroleum Five-Year Review Status: N/A
hydrocarbons and asbestos containing material
Progress to Date completed and the CMS work plan was being prepared. Fieldwork was Plan of Action
underway at Sites WP-2, WP-8, WP-11, and SS-19. Preparation of the RFI
Arnold Engineering Development Center (AEDC) is an advanced work plan for Site LF-1 began. Regulatory approval was received for Plan of action items for AEDC are grouped below according to
aerospace ground test, evaluation, and simulation facility. The RFIs for Sites SS-22, FT-10, and WP-12. Also in FY01, a comprehensive program category.
installation was proposed for the NPL in August 1994. AEDC conducts range inventory was initiated. This inventory was designed to be an
tests, engineering analyses, and technical evaluations for research, IRP
annual, iterative effort. To supply data for the inventory, a detailed
system development, and operational programs that simulate operational questionnaire was completed that collected data on the types of munitions • Complete RFIs for Sites LF-1, SS-19, and SS-26 in FY04.
conditions. Sites at the installation include a landfill, a chemical treatment used, the range’s environmental status, and the type and level of external • Complete CMSs for Sites LF-1, WP-2, WP-6, WP-11, and WP-12
plant, AEDC’s main testing area, a leaching pit, a leachate burn area, stakeholder interest. in FY04.
and a fire training area. Chlorinated solvents are the primary • Achieve RIP and RC for Sites SD-4 and SD-9 in FY04.
contaminants. In FY95, several interim remedial actions were In FY02, the installation completed fieldwork and data analysis for the
RFIs for Sites WP-2, WP-8, and WP-11. Fieldwork was initiated for the • Construct IM for hydraulic containment of a chlorinated solvent
completed, including low-temperature thermal treatment of soil
Site LF-1 RFI. The cost of completing environmental restoration at this plume associated with SS-22 in FY04–FY05.
contaminated with volatile organic compounds (VOCs) and the
installation of a groundwater extraction and treatment system. The installation changed significantly due to technical issues. The installation MMRP
installation converted its technical review committee to a Restoration conducted a site tour for the CAB. CAB members also participated in the
• Begin preliminary assessments in FY05.
Advisory Board (RAB) in FY95. In FY99, the RAB was converted to a installation action plan meetings. The installation volunteered to participate
Community Advisory Board (CAB). The cost of completing in a new process initiated by the state to streamline the investigation and
environmental restoration at this installation has changed significantly cleanup processes for hazardous waste sites. The Air Force completed
due to estimating criteria issues. an inventory of Military Munitions Response Program (MMRP) sites,
including preliminary cleanup cost estimates for sites at eligible
The cleanup progress at AEDC for FY99 through FY02 is non-operational ranges. MMRP sites were identified.
In FY99, delineation of the Site SS-22 plume migration pathway was FY03 IRP Progress
conducted. At Site Landfill 3 (LF-3), a landfill boundary soil gas collection The installation completed the CMS for Site LF-3. LF-3 also achieved
system was constructed to mitigate an emergency situation involving remedy in place (RIP) during the fourth quarter. The interim measure (IM)
methane gas migration to a local high school and residences. upgrade for Sites WP-6 and WP-8 was completed and an IM for installing
Twenty-two solid waste management units in Site SS-22 were access controls at SS-19 was initiated. Site WP-20 achieved RIP and
designated for no further action. response complete (RC). Risk at WP-8 was reduced from high to
In FY00, the Estill Springs water line was extended, and residents of 20 medium. Risk at Sites WP-6, SD-4, and SD-9 was reduced from medium
homes downgradient of the Site WP-6 plume were connected. The Site to low. RFIs for SS-25 and SS-26 began. The IM for SS-22 was deleted
WP-6 RCRA facility investigation (RFI) was approved, and a corrective with regulatory acceptance.
measure study (CMS) work plan was submitted. The draft RFI report for The completion of RFIs for LF-1 and SS-19 were delayed to allow for
Site SS-22 was completed. The installation began constructing a series additional data collection. Technical challenges delayed completion of the
of interior methane gas extraction trenches at Site LF-3. The installation CMS phase for WP-6 and LF-1 as well as extended the completion of the
used color-enhanced aerial thermography to identify springs to which RFI for SS-25 through FY05.
groundwater from the base may be discharging.
In FY01, the draft RFI Number 3 report was completed, and preparation FY03 MMRP Progress
of the CMS work plan began. The CMS report for Site WP-6 was In FY03, the Air Force updated its MMRP inventory. Cost estimates and
initiated. Construction of the interior methane gas collection trenches at Risk Assessment Code (RAC) scores were updated for each MMRP site.
Site LF-3 was completed. The draft RFI report for Site LF-3 was The Air Force will prioritize the MMRP sites and perform response actions
on each site beginning in FY05.
Air Force A-29