Case Study #2 – Chino, CA Scope of Work CalClean was contracted to conduct a 96 hour HVDPE pilot test, a 15-day event, and (2) 7-day events totaling a combined 33-days for a confidential client located within the Santa Ana Regional Water Quality Control Board. The subject site exhibited elevated concentrations of petroleum hydrocarbons in the soil and groundwater beneath the site including the oxygenated gasoline additive Methyl-tert-butyl ether (MtBE). Lithology Soils encountered during drilling operations consisted predominantly of silts and sands from just below the ground surface to approximately 25 ft. bgs, silty sands and sands were present from approximately 25 ft. to approximately 40 ft. Clays and silts were encountered from 40 ft. to 50 ft. Results The results of the h

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