Tag Archives: TCE

Dual Phase Extraction System, Permitting Design, and Construction | Berkeley CA

A former industrial building located in Berkeley, California was impacted with Chlorinated Volatile Organic Compounds (CVOCs), including trichloroethene (TCE) and cis-1,2-dichloroethylene (cis-1,2-DCE); total petroleum hydrocarbons as gasoline (TPH-g), Dense Non-Aqueous Phase Liquid, and (DNAPL) and Light Non-Aqueous Phase Liquid (NAPL). A dual phase extraction system was permitted for site remediation.

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Technical Assistance for CERCLA Sites

runwayTechnical support was provided to two groundwater operating units. The operating units are designed to remediate the groundwater impacted with VOCs at two CERCLA sites.

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Environmental Services for the Aerospace Industry

Our project experience includes environmental engineering services for the aerospace industry which includes remediation of former aerospace sites that pre-date World War II (also called legacy sites), and several CERCLA sites located in Southern California.

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Soil and Soil Gas Investigation, San Fernando Valley, California

When seven production wells operated by a Southern California water purveyor reported concentrations of hexavalent chromium and perchlorate above regulatory limits for drinking water, a multiagency effort was conducted to identify sources of chemicals of concern.

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Closure Plans for Contaminated Sites and Regulatory Closure Negotiations

Introduction Contaminated sites undergoing remediation are managed with cleanup goals that are driven by guidelines and regulations published by regulatory agencies.  Many regulators now require the collection of environmental data which may not be published in guidelines to assess closure. … 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 … Continue reading

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