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ELECTRICAL RESISTANCE HEATING: WHEN MOTHER NATURE BRINGS CHALLENGES
Avritt, S.
The 27th Annual David. S. Snipes/Clemson Hydrogeology Symposium, 4 April, Clemson University, Clemson, SC. Abstract book, p 3, 2019

Former manufacturing operations at the CTS of Asheville Inc. Superfund site released chlorinated VOCs (mainly TCE) and fuel oil to the site's soil and groundwater. Direct sensing investigation techniques delineated an area of about 1.2 acres containing LNAPL comingled with TCE. In 2014, a vapor intrusion (VI) assessment conducted at residential properties east of the site indicated TCE concentrations in indoor air above EPA's applicable levels. An Interim Remedial Action Consent Decree entered in March 2017 indicated a remedial action objective of 95% removal of TCE from saturated soil and groundwater, and LNAPL in the source area. An electrical resistance heating (ERH) system was designed to remediate the subsurface from the water table to bedrock (an estimated 47,250 yd3). ERH remediation was successfully implemented from June to November 2018. See news on cleanup progress at https://www.epa.gov/newsreleases/first-phase-interim-cleanup-completed-cts-superfund-site-asheville-nc and additional information on the project website at https://cumulis.epa.gov/supercpad/cursites/csitinfo.cfm?id=0402598.



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