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ORCHARD SUPPLY COMPANY FACILITY GROUNDWATER REMEDIATION, 1731 17TH STREET, SACRAMENTO, SACRAMENTO COUNTY
Central Valley Regional Water Quality Control Board, GeoTracker website, 2017
The in situ groundwater remediation project consisted of injecting a slurry solution of EHC into the source area shallow and deep groundwater to treat concentrations of 1,2-DCA, 1,2-DCP, and carbon tetrachloride. EHC is a mixture of controlled-release carbon, zero-valent iron, and nutrients for stimulating in situ chemical reduction of otherwise persistent chemicals in groundwater. A total volume of 24,525 gal of injection substrate containing 68,000 lb of EHC (30% EHC solids mixed with water) was injected using direct push tooling in the source area groundwater. The injections were completed between July 2015 and September 2015. No further injections are planned for the site. Additional groundwater monitoring is being conducted under a separate agreement. See more technical information in the site documents at http://geotracker.waterboards.ca.gov/profile_report?global_id=SLT5S2063245 .
The in situ groundwater remediation project consisted of injecting a slurry solution of EHC into the source area shallow and deep groundwater to treat concentrations of 1,2-DCA, 1,2-DCP, and carbon tetrachloride. EHC is a mixture of controlled-release carbon, zero-valent iron, and nutrients for stimulating in situ chemical reduction of otherwise persistent chemicals in groundwater. A total volume of 24,525 gal of injection substrate containing 68,000 lb of EHC (30% EHC solids mixed with water) was injected using direct push tooling in the source area groundwater. The injections were completed between July 2015 and September 2015. No further injections are planned for the site. Additional groundwater monitoring is being conducted under a separate agreement. See more technical information in the site documents at http://geotracker.waterboards.ca.gov/profile_report?global_id=SLT5S20632
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