Fire Training Zone Plume
Several small, unconnected TCE plumes are present in the former Fire Training Zone (FTZ), which is located adjacent to 1st Avenue on property currently owned by the Colorado Golf Association. There are several potential sources for the TCE in the groundwater at the FTZ. TCE likely reached groundwater through pits used for fire fighting training activities, a former septic leach field, and/or potential solvent releases related to activities at Building 1023 and 1026. TCE appears to have migrated in sand near the base of the alluvial water-bearing zone, through weathered and fractured bedrock, and permeable sandstone of the bedrock-water bearing zone.
KMnO4 injections were performed in 2005 and 2006 and the TCE concentration reductions range from 50 to 99 percent with one exception. In Well MWCA08, sampled in 2005 and 2006, the TCE concentration has increased. Further remediation work in this area is being evaluated.
