FIRE TRAINING PIT - GROUNDWATER

 

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. Groundwater monitoring began in 1994.

High levels of VOCs in concentrations of greater than 30 ppm have been found in shallow groundwater and the upper bedrock (30 feet bgs). Groundwater contamination has migrated to the Spring Creek Tributary.

In 2003, the supplemental RI was completed and documented in a Remedial Alternative Analysis document.

Phase progress will be tracked at this PBC Site, but funding requirements will be tracked under Site PBC at Iowa.  Post PBC costs will be covered under Site IAAP-020.

CLEANUP STRATEGY

This site is included in the PBC awarded in 2004.  The remedial approach for this site, as well as others outside the Brush Creek watershed, will be assessed in a single FS.  At present, it is presumed that localized areas of contamination will be remediated.

STATUS

RRSE RATING: Medium

CONTAMINANTS: Metals, VOCs, SVOCs

MEDIA OF CONCERN: Groundwater

COMPLETED IRP PHASE: PA/SI

CURRENT IRP PHASE: RI/FS

FUTURE IRP PHASE: RD, RA(C), RA(O), LTM