The Results of a Laboratory Feasibility Study for the Biological Treatment of Umatilla Groundwater
2012
Medina, Victor F | Knotek-Smith, Heather | Gent, David | Morrow, Agnes
The Umatilla Chemical Depot (UMCD) has been slated to close as an Army facility under the Base Realignment and Closure (BRAC) Program. One remaining environmental issue is a groundwater plume contaminated with explosives; the two most critical are 2,4,6-trinitrotoluene (TNT) and 1,3,5-trinitrohexahydro-1,3,5-triazine (RDX). Since 1994, a groundwater pump and treat system has operated at the site as a corrective measure for the contaminated groundwater. The effectiveness of this treatment system has plateaued, and it appears that the system will not meet the long-term treatment goals for the site. This study was conducted to evaluate the potential of bioremediation as a means of optimizing the performance of the groundwater treatment system. Groundwater from the site was collected through the groundwater pump and treat. Soil was collected from the wash out lagoon area, which is the primary source area for most of the contamination.
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