Portland, Or - Deep, DNAPL remediation

Courtesy of TRS Group, Inc.

In 1999, the senior managers of Thermal Remediation Services, Inc (TRS) while working for a former employer, as a subcontractor to AMEC, provided Electrical Resistance Heating (ERH) for VOC-impacted groundwater at a commercial site in Portland, Oregon. The remediation was conducted under the Oregon Department of Environmental Quality (DEQ) Voluntary Cleanup Program. The remedial action objective was to remove DNAPL to protect the drinking water source beneath the contaminated area, and reduce the contaminant concentrations in roundwater to levels indicating DNAPL was below concentrations protective of human health and the environment. Contaminant concentrations in monitoring wells were reduced by 99% meeting all remedial action objectives.

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