Category Archives: Projects

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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Lubricant Oil Spill Response, South Gate, California

An emergency cleanup response was executed after 7,000 gallons of lubricant oil were released. The release occurred as a result of railroad tank car colliding with a road tanker. The release affected soils in the vicinity of the incident, and impacted a nearby storm drain.

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Feasibility Study for Management of Waste Activated Sludge, Manitoba, Canada

Secondary Clarifiers
A food processor was experiencing low hydraulic residence times at one of their anaerobic digesters during the discharge of waste activated sludge. a feasibility study identified that the most cost-effective option was to thicken and anaerobically treat thickened waste activated sludge (TWAS) in a new digester designed specifically for that purpose.

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Anaerobic Slop Management System, Central America

CLNSA
A system for anaerobic digestion of slops, water treatment, and biogas utilization was designed to meet regulations, displace fuel-oil, and cut greenhouse gases at a Central American rum distillery.

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Remediation of a Former Marine Terminal, Southern California

Dig and Haul Projects After a marine terminal was demolished, several site assessments revealed that soil and groundwater at the site were impacted with petroleum hydrocarbons and lead. An interim remedial action plan (IRAP), a Remedial Action Plan (RAP), and a Sampling and Analysis Plan (SAP) were prepared and implemented to protect harbor water, and remediate the site.

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Pilot Testing an Advanced Oxidation System at Salton Sea, Salton Sea Authority, Imperial County, California

As part of a feasibility study intended to identify technical options to restore the water quality in a lake, an advanced oxidation system pilot test was performed to demonstrate the technology, and obtain operations data for a system pre-design and cost estimate.

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Fixed-Price Guaranteed Remediation Project, Former Aerospace Site Impacted with VOCs, Southern California

runwayA former aerospace manufacturing site was impacted with perchloroethylene (PCE) and trichloriethylene (TCE) in soil gas. The operation and maintenance of a soil vapor extraction (SVE) system was outsourced through closure.

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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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Soil Vapor Extraction and Air Sparge Operation, California Refinery

A global oil and gas corporation commissioned the operation and maintenance of a soil and groundwater remediation system designed an active California refinery. Continue reading

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Perchlorate Groundwater Investigation, Barstow, California


The Salton Sea, California
A Southern California regulatory agency suspected that illegal disposal of perchlorate had impacted the soil and groundwater of a residential property located in Barstow, California. A groundwater investigation project was conducted at a suspected source of perchlorate site, and extended 1.5 miles offsite. The groundwater investigation project fully delineated the extension of perchlorate impacted groundwater and identified remediation alternatives.

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