Title: Removal Action Completion Report Electrical Resistance Heating in Source Area Former Mercury Cleaners Site Area 
Resource Type: document --> case study 
Country: USA 
Language(s): English
Year: 2018 
Author 1/Producer: FUGRO 
Author / Producer Type: Consultancy, contractor or other service provider 
Report/Document number/description: January 31, 2018; Fugro Project No. 04.72140056; State of California Department of General Services 
Publisher Country: USA 
Publisher web link (root): http://geotracker.waterboards.ca.gov
Report / download web link (=direct link): http://geotracker.waterboards.ca.gov/esi/uploads/geo_report/ ...  
Format (e.g. PDF): PDF 
EUGRIS Keyword(s): Contaminated land-->Remediation options-->In situ treatment technologies
Short description: Mercury Cleaners operated as a dry cleaner from 1947 to 2014. The facility used a variety of dry cleaning solvents, and the site requires soil and groundwater treatment to remediate the impacts of petroleum-based Stoddard Solvent and of PCE and its daughter products. Cleanup began in 2015 with a soil vapor extraction (SVE) system pilot test, which is currently operating. To address soil contaminated with PCE above residential screening levels in an area ~40 ft by 40 ft in plan, a source area removal action was implemented in November 2016 using in situ electrical resistance heating (ERH) thermal desorption. Comprising 15 electrode/vapor recovery wells located within the source area, the ERH system was designed to volatize VOCs in the subsurface for SVE system removal and treatment. The goal of the removal action was to reduce contaminant mass by > 99% and lower concentrations of TPH, PCE, and other VOCs below the soil and groundwater cleanup goals. ERH system operation ended on July 7, 2017. Although source area cleanup goals were not met completely, significant PCE mass was removed from the source area.  
Submitted By: Professor Paul Bardos WhoDoesWhat?      Last update: 07/03/2018