Successful Pilot Test Results in Full-Scale Treatment of Large BTEX Plume

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Courtesy of REGENESIS

CASE SUMMARY
Refueling Station – Algonquin, IL

Leaking underground storage tanks at a refueling station resulted in a benzene, toluene, ethylbenzene and xylene (BTEX) plume in the underlying sand/gravel aquifer. The plume covered 1-acre and extended 390 feet downgradient from the source area, with a total BTEX concentration exceeding 24,000 parts per billion (ppb). In an effort to mitigate the source, 795 cubic yards of contaminated soil was excavated; however, further groundwater monitoring revealed that BTEX concentrations still exceeded the Illinois EPA cleanup levels. To address the remaining contamination and reduce concentrations to the state cleanup goal, a remediation plan was implemented using Oxygen Release Compound (ORC®) and ORC Advanced®.

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