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LONG-TERM PERFORMANCE OF PERMEABLE REACTIVE BARRIERS TO REMEDIATE CONTAMINATED GROUND WATER
Citation:
Wilkin*, R T. AND R W. Puls*. LONG-TERM PERFORMANCE OF PERMEABLE REACTIVE BARRIERS TO REMEDIATE CONTAMINATED GROUND WATER. Presented at DOE-Sponsored Conference on PRB Performance, Salt Lake City, UT, 1/23-25/01.
Description:
This research brief presents findings over the past four years at two sites where detailed investigations by the U.S. Environmental Protection Agency (U.S. EPA) have focused on the long-term performance of PRBs under a Tri-Agency Permeable Reactive Barrier Initiative (TRI). This initiative involves the U.S. EPA, the Department of Defense, and the Department of Energy. The objectives of the TRI are to leverage the technical and financial resources of the three agencies in order to examine the field performance of multiple PRBs across the United States. A survey of existing PRBs indicated that the two main challenges facing the technology were (1) uncertainties associated with the longevity (geochemistry) of a PRB and (2) ensuring/verifying hydraulic performance. Therefore, this initiative and our research have focused primarily on these challenges.