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Tag Archives: remediation
Dual-Phase Extraction (DPE) | Technology Description
Dual-Phase Extraction (DPE) is a remediation technology used to remediate soils and groundwater affected with volatile organic compounds (VOCs). This technology works by extracting soil vapor and groundwater from the subsurface, then treating the vapors and water prior to discharge.
Posted in All Posts, Groundwater Remediation, Remediation, Soil Remediation, Technology
Tagged dual phase, extraction, groundwater, remediation, system
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Air Sparge | Technology Description
Air sparge is an in situ groundwater remediation technology were air is injected into the groundwater to increase dissolved oxygen. Air sparge is used to remediate impacted groundwater with volatile organic compounds (VOCs), most commonly gasoline range organics.
Posted in All Posts, Groundwater Remediation, Remediation, Technology
Tagged air sparge, gas stations, Gasoline, groundwater, remediation, VOC, VOCs
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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.
Posted in All Posts, Projects, Remediation, Soil Remediation
Tagged dig-and-haul, disposal, excavation, remediation, soil, soil thermal remediation, thermal, thermal remediation of soil
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Remediation of a Former Marine Terminal, Southern California
After a marine terminal was demolished, several site assessments revealed that soil and groundwater at the site were affected 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.
Posted in All Posts, Groundwater Remediation, Projects, Remediation, Soil Remediation
Tagged groundwater, Harbor, IRAP, LNAPL, plan, RAP, remedial, remediation, sampling, skimming
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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. Continue reading
Posted in Clients
Tagged aerospace, chrome, emerging contaminants, hexavalent, NDMA, PCE, perchlorate, remediation, site, TCE
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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 feasibility study.
Posted in Advanced Oxidation, All Posts, Projects
Tagged advanced, groundwater, oxidation, Pilot, remediation, systems, Testing
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Fixed-Price Guaranteed Remediation Project, Former Aerospace Site Impacted with VOCs, Southern California
A 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.
Posted in All Posts, Projects, Remediation, Soil Remediation
Tagged aerospace, Contracts, Environmental, Fixed, groundwater, Manager, Price, Program, Project, remediation, soil
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Groundwater Remediation using Air Sparge | Pilot Testing, Design, Construction, and Operation
Air sparge is an in situ groundwater remediation technology which uses vertical or horizontal wells to transfer a continuous or pulsed flow air into the groundwater. The purpose of air sparge system is to reduce the concentrations of volatile organic compounds (VOCs) in groundwater through enhanced volatilization, and mass transfer of VOCs and oxygen. Continue reading
Posted in All Posts, Groundwater Remediation, Remediation
Tagged air, Design, groundwater, in-situ, maintenance, operation, pilot-testing, remediation, reports, sparge
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Advanced Oxidation using Ultraviolet Light and Hydrogen Peroxide
Advanced oxidation systems using hydrogen peroxide (peroxide) and ultraviolet (UV) light are designed to inject hydrogen peroxide in controlled ratios to the water, then mixing the peroxide, and exposing the water and peroxide solution to UV radiation to form hydroxyl radicals (•OH). Peroxide and hydroxyl radicals are strong oxidizing agents capable of oxidizing 1,4-dioxane and several volatile organic compounds (VOCs). The advanced oxidation process is suitable for groundwater remediation with pump-and-treat, water treatment, and industrial wastewater treatment. Treatment with UV/Peroxide may offer technical advantages over ozone based treatment systems.
Posted in Advanced Oxidation, All Posts, Groundwater Remediation, Industrial Wastewater, Remediation, Technology, Water Treatment
Tagged advanced, groundwater, oxidation, peroxide, remediation, ultraviolet light, UV, VOCs
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Environmental Services for the Oil and Gas Industry
Project experience with the oil and gas industry includes a wide range of environmental services from due diligence to remediation of retail sites, marine terminals, tank farms, and refineries. Our environmental consulting and engineering services include water resources management; soil and groundwater remediation; water treatment, and long-term environmental management of petroleum hydrocarbons. Continue reading
Posted in All Posts, Clients
Tagged groundwater, oil, oil and gas, petroleum, remediation, Sites, treatment, water
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