DPT Injection – BTEX

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ORIN successfully treated BTEX contaminated groundwater utilizing in-situ chemical oxidation. Approximately 70 gallons of catalyzed sodium persulfate at 18-percent solution was injected into each of the forty-two injection points at depth-specific intervals. Each interval received approximately 20-gallons of treatment chemistry. The injection points were spaced in a grid pattern to treat the contaminant plume. The treatment chemistry injection was coordinated with vacuum extraction on adjacent wells to control hydraulic activity more accurately and to improve injection efficiency. This facilitated preferred treatment chemistry coverage within the targeted treatment area.

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