Category Archives: Remediation

Feasibility Study, Remediation of Oxygenate Impacted Groundwater, Retail Gas Station, California

Advanced Oxidation of MTBE
A gas station located in Southern California had contaminated the groundwater with oxygenates.  The client was in need to contain plume of MTBE and TBA, which was migrating to an environmentally sensitive area. A feasibility study evaluating nine remediation scenarios was conducted to identify the best remediation option. Continue reading

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Site Closure Plan and Closure Strategy and Regulatory Support, Former Aerospace Site, Southern California

A soil vapor extraction system located at former aerospace site in Southern California had operated for a number of years. The client requested a strategy to obtain regulatory site closure. In response, a site closure plan was prepared outlining a schedule and a list of technical and administrative requirements to support site closure. The closure plan also listed methods and procedures to demonstrate that site-specific cleanup concentrations were protective of human health and groundwater.

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Treatment of Groundwater Impacted with 1,4-Dioxane, Westlake Village, California

Advanced Oxidation of 14 Dioxane
The development plan for a former media manufacturing site impacted with volatile organic compounds (VOCs) and 1,4-Dioxane in groundwater included the construction of a large development in Westlake Village California. A feasibility study concluded that a pump-and treat system consisting of an advanced oxidation process combined with liquid phase activated carbon (LPGAC) was required. The follow-up work included preparing a detailed design, preparing NPDES permits for storm water discharge, process flow diagrams, layout diagrams, and process and instrumentation diagrams. Continue reading

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Peer Review of Technical Specifications and Design, Remediation of a Waterfront Property, Long Beach, California

 The soil and groundwater at a waterfront property were heavily impacted with VOCs including chlorinated hydrocarbons. A remedial action plan outlined remediation activities at the Site consisting of soil excavation, offsite thermal treatment, soil disposal, and installation/operation of remediation … Continue reading

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Bench Scale Testing of Advanced Oxidation for MTBE

Advanced Oxidation of MTBE

The Merced County of Environmental Health office ordered a gas station located in Los Banos, California to mitigate a plume of MTBE. To mitigate the MTBE in groundwater, an advanced oxidation system was proposed for the site. A pilot test was performed to assess the impact of ozone on naturally occurring chromium in soil at the site.

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Feasibility Study, Remediation of Oxygenate Impacted Groundwater, California

Advanced Oxidation of MTBE
A gas station located in Southern California had impacted the groundwater with oxygenates. Prior to implementing a full-scale solution, a feasibility study was prepared to evaluate 9 in-situ remediation technologies and 9 ground-water treatment alternatives. Continue reading

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