DPT Injection – BTEX

ORIN successfully treated residual BTEX contaminated soil and groundwater utilizing In-situ chemical bioremediation that the onsite pump-and-treat system was unable to further remove. Using Geoprobe direct push technology, 1 ¼-inch (in.) diameter steel rods with disposable tips were advanced to bedrock at 4- to 8-feet below ground surface (ft bgs) in order to facilitate chemical injection. Approximately 50 gallons of EHC-O treatment chemistry at a 15% solution was injected into each of the eighteen injection points. The injection points were located across the site to ensure the most complete lateral coverage coupled with the existing operational pump-and-treat system.

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