FIRE TRAINING PIT

 

SITE DESCRIPTION

The former Fire Training Pit was an unlined pit that measured approximately 40x16x2 feet used from 1982 to 1987. During training sessions, 55-gallon drums of solvents and petroleum products were set ablaze, then extinguished by fire fighters.

The PA/SI was completed in 1991, the RI was completed in May 1996. Investigations found localized soil and groundwater contamination consists of significant quantities of VOCs (including chlorinated solvents), SVOCs, metals and low levels of dioxins and furans.

An Engineering Evaluation/Cost Analysis (EE/CA) and an Explanation of Significant Differences (ESD) & Action Memo were prepared for this site. The initial proposed remedy was ex-situ soil vapor extraction (SVE). The remedy used was Low Temperature Thermal Desorption (LTTD). This 1998 soil cleanup effort removed 5200cy of contaminated soil, half of which was thermally treated. The remaining soil was landfilled or backfilled. This action is believed to have removed the contamination source.

In 2001, approx. 500-1000cy of contaminated soil and debris was found in secondary locations. This material contains high levels of metals and/or VOCs. In 2003, 616cy of soila nd debris was removed and disposed of in the IDA (IAAP-020).

CLEANUP STRATEGY

This site is included in the PBC awarded in 2004.  NFA is required for soils as documented in the Remedial Action Report Addendum for the Fire Training Pit.  This site will be addressed in the installation-wide OU4 ROD.