Case Study #14 – Prescott, AZ Scope of Work CalClean was contracted to conduct HVDPE events for a confidential client located in Prescott, AZ. The subject site is characterized by sedimentary deposits overlying weathered/fractured igneous bedrock and seasonally fluctuating groundwater elevations. The Site exhibited elevated concentrations of petroleum hydrocarbons in the soil and groundwater, including floating free phase hydrocarbon (FPH). Arizona Department of Environmental Quality (ADEQ) concurred with the suggested use of HVDPE with water treatment as a remedial approach for the Site. Previously, dual phase extraction was utilized at the Site periodically over a 7 year span to remove 64 pounds of hydrocarbons in vapor, 1,000 gallons of groundwater, and an undocu

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