Service Station Site, Long Beach, California
EST performed multiple injections of RegenOx™ solution into 20 direct-push probe borings at a service station site in Long Beach, California. RegenOx™ is a proprietary environmental remediation product produced by Regenesis Corporation for in-situ direct chemical oxidation of organic compound contamination in soil and groundwater. EST pressure injected 150 pounds of RegenOx™ into a 10-foot-thick contaminated zone at depths ranging from about 25 to 35 feet for the in-situ remediation of petroleum hydrocarbon contamination.
Long Beach Middle Harbor, Pier T Marine Terminal, Long Beach, California
EST performed the injection of Hydrogen Releasing Compound (HRC™) into 16 direct-push probe borings at the Long Beach Middle Harbor in Long Beach California. HRC™ is a proprietary environmental remediation product produced by Regenesis Corporation primarily used for the in-situ remediation of chlorinated organic solvents by stimulation of naturally occurring anaerobic bacteria (bio-stimulation). EST pressure injected 150 pounds of HRC into the shallow groundwater from 25 to 40 feet below grade for the in-situ remediation of organic solvent contamination.
Former Metals Plating Facility, Los Angeles, California
EST performed multiple injections of HRC™ into 28 direct-push probe borings a former metals plating facility in Los Angeles, California. EST pressure injected 1,560 pounds of HRC™ into a semi-confined groundwater zone located between 25 and 35 feet for the in-situ remediation of chlorinated organic solvents including tetrachloroethene (PCE) and trichloroethene (TCE). Remediation performance monitoring was subsequently performed by EST under a General Waste Discharge (WD) Permit issued by the Los Angeles Regional Water Quality Control Board.
Former Drycleaners Site, Garden Grove, California
EST performed multiple injections of sodium permanganate down-gradient of a former dry-cleaning facility in Garden Grove, California. EST pressure injected 4,300 gallons of 10% sodium permanganate solution into 38 direct-push probe borings over three events for treatment of PCE-impacted groundwater beneath a vacant lot adjacent to the former dry cleaners’ site by direct chemical oxidation. Remediation performance monitoring was subsequently performed by EST under the Orange County Health Care Agency and Santa Ana Regional Water Quality Control Board oversight.