Record Display for the EPA National Library Catalog


Main Title In situ Permeable Reactive Barrier for the Treatment of Hexavalent Chromium and Trichloroethylene in Ground Water. Volume 2. Performance Monitoring.
Author Blowes, D. W. ; Puls, R. W. ; Gillham, R. W. ; Ptacek, C. J. ; Bennett, T. A. ;
CORP Author Waterloo Univ. (Ontario). Dept. of Earth Sciences.;National Risk Management Research Lab., Ada, OK. Subsurface Protection and Remediation Div.
Publisher 8 Sep 1999
Year Published 1999
Report Number EPA-R-823017; EPA/600/R-99/095B;
Stock Number PB2000-106693
Additional Subjects Ground water ; Reactive barriers ; Water pollution control ; In situ ; Treatment ; Remediation ; Plumes ; Reduction ; Precipitation ; Permeable reactive barriers ; Hexavalent chromium ; Trichloroethylene ; US Coast Guard Support Center (USCG) ; Elizabeth City (North Carolina)
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Library Call Number Additional Info Location Last
NTIS  PB2000-106693 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 240p
A 46 meter long, 7.3 meter deep and 0.6 meter wide reactive barrier was installed at the U.S. Coast Guard Support Center (USCG) in Elizabeth City, North Carolina, in June 1996. The reactive barrier was designed to remediate a hexavalent chromium (Cr(VI)) groundwater plume, in addition to treating portions of a larger and not yet fully characterized trichloroethylene (TCE) groundwater plume at the site. The barrier is composed of Peerless Metal and Abrasives of Detroit, Michigan (Peeerless) granular iron and removes (Cr(VI)) and TCE from the groundwater via processes of reduction and precipitation, and reductive-dechlorination, respectively. In addition to nine large-screen compliance wells, a monitoring network of approximately 150 small-screen sampling points was installed in November 1996 to provide detailed information on changes in porewater geochemistry through the barrier. This network was sampled seven times between November 1996 and December 1998 at 3 to 6 month intervals: November 1996, February 1997, June 1997, September 1997, March 1998, June 1998 and December 1998.