groundwater site Articles

  • Nor Cal 2002 Case Study (C3 Technology)

    The project site is located in Northern California and was leased and operated as a chemical storage and solvent recovery operation from late 1972 through April 1993. During an earlier period, the site may also have been used as a waste transfer station. Previous investigations indicate that soil and groundwater at the site, and groundwater down-gradient (westward) from the site, have been ...

  • High groundwater site conditions

    Specific site conditions: BIOROCK non-electrical sewage treatment plants are unlike other wastewater treatment systems and are perfectly suitable for high groundwater conditions. BIOROCK plants can be installed in high water table or high groundwater sites by one of our trained installers. Our Research and Development team worked hard to find the best design to fit to difficult UK installation ...


    By BIOROCK S.à.r.l

  • Controls on groundwater nitrogen contributions from on-site wastewater systems in coastal North Carolina

    The goal of this study was to evaluate the influence of soil type and separation distance to water table on dissolved inorganic nitrogen concentrations in groundwater adjacent to on-site wastewater systems. Groundwater nitrogen species (NO3--N and NH4+-N) and groundwater levels adjacent to 16 on-site systems in three different soil groups (group I- sand, group II- coarse loams and group III ...


    By IWA Publishing

  • Site 25 System Slows Down Contamination

    The Air Force has installed dollar $2 million groundwater extraction and granular activated carbon system to slow down the spread of the solvent trichloroethene (TCE) groundwater contamination at Site ...


    By J.C. Palomar, Inc.

  • GW monitoring in saxony

    Background During the hundred-year flood in 2002 in Eastern Germany the river “Elbe“ and a lot of rivers in the catchment area exceeded the banks and caused damages of millions within a short period of time. Often unnoticed, the groundwater level was rising extremely after a certain time. The time of rising groundwater took considerably longer than the actual flood, and caused enormous ...


    By OTT HydroMet

  • Identifying sources of groundwater in the lower Colorado River valley, USA, with δ18O, δD, and 3H: implications for river water accounting

    Isotope measurements (18O, D, 3H) indicate groundwater origin in the Lower Colorado River Valley (LCRV) and provide an alternative, or supplement, to the US Bureau of Reclamations proposed accounting surface method. The accounting surface method uses a hydraulic criterion to identify certain wells away from the flood plain that will eventually yield mainstream Colorado River water. New isotope ...


    By Springer-Verlag GmbH

  • Case study – BTEX contamination - Kentucky

    In 1992, remedial activities began at the Shively Service Center located in Radcliff, Kentucky. After the leaking underground storage tanks were removed from the site approximately 1,500 cubic yards of BTEX impacted soil was excavated and disposed off-site from the tank pits. Based on the review of historical sampling activities it was believed that the majority of the impacted soils were removed ...

  • Deep, DNAPL remediation Portland, OR

    In 1999, the senior managers of TRS Group, Inc (TRS) while working for a former employer, as a subcontractor toAMEC, 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 ...


    By TRS Group, Inc.

  • Groundwater Exploration in South Sudan - Case Study

    Purpose The Radler Foundation, Water Harvest International, and East African Ministries are humanitarian organizations working to bring water wells to villages in rural areas of Africa. In February 2015, they wanted better information about where to drill a well in the Yeri Mozo Village in South Sudan in order to provide access to safe and clean water—and improve the quality of ...


    By Advanced Geosciences, Inc.

  • North LA Case Study (C3 Technology)

    The project site is an industrial facility located in the foothills of northern Los Angeles, California. The facility utilized chlorinated solvents in operations. Based on soil borings, site geology consisted of unconsolidated gravely sands, sand, silty sand, sandy silt, and silt from ground surface to more than 200 feet below ground surface (bgs). Groundwater was encountered at the site at ...

  • Fractured Bedrock Formation PCE, Pennsylvania - Case Study

    The Accelerated Remediation Technologies, LLC, (ART) Integrated Remediation Technology was installed at an operating, industrial laundry facility to remedy groundwater in a fractured bedrock geologic formation. Contaminant(s) of concern: PCE Site Description: The site is located in eastern Pennsylvania and the subsurface consists of silty clay to depths ranging from 10 to 60 feet underlain by ...

  • Case study – TPH contamination

    This site had Benzene groundwater levels of greater than 5 ug/L and TPH groundwater levels of 30-130 mg/L with TPH soil levels of 200-800 mg/kg before treatment with BOS 200®. The site was closed after ...

  • Feasibility study of in-situ bioremediation for nitrobenzene-contaminated groundwater

    Although many studies have simulated in-situ bioremediation of contaminated groundwater, most of them have not considered hydrochemical conditions and indigenous microorganisms, thus potentially rendering results inapplicable to actual in-situ groundwater bioremediation projects. This study focused on a nitrobenzene-contaminated groundwater site located in Jilin City, China. The actual ...


    By IWA Publishing

  • Gas station: Stuart, Florida

    Aerobic bioremediation with air sparging Site Description Underground storage tank (UST) leaks from a gas station contaminated shallow ground- water under the property. Following the removal of the leaking USTs and impacted soils around the tank cavity, combined air sparging and aerobic bioremediation was implemented to remediate the groundwater. Site Characteristics Geology and Hydrogeology ...


    By CL Solutions, LLC

  • Results of the Application of Enhanced Reductive Dechlorination of Chlorinated Organics at Eight Sites (PDF)

    Enhanced reductive dechlorination is becoming more widely evaluated as a technology for the remediation of chlorinated organic compounds. The performance of this technology as reported in the literature, is often quite variable, making it difficult to evaluate the applicability of the technology. CH2M HILL has been involved in the application of this technology at several sites over the past few ...


    By Regenesis

  • Case study – benzene/TPH contamination - convenience store

    This site had groundwater Benzene levels of up to 26,000 ug/L and groundwater TPH levels of up to 14,400 ug/L. After treatment, only one monitoring level (GRO) in one well (M-7) remains above standard. Further monitoring will be conducted before applying for site ...

  • Arizona Landfill Case Study (C3 Technology)

    Between 1979 and 1980, industrial and hazardous wastes were disposed of at the Site in a series of unlined pits, each of which was used for a particular type of waste disposal. It is reported based on evaluations of manifests that approximately 3.4 million gallons of hazardous liquid wastes and between 3,700 and 4,100 tons of solid wastes were disposed of in the pits at the Site. Of particular ...

  • Development of a risk-based approach for better protection of drinking water catchments in Flanders (Belgium)

    Around 70% of the drinking water produced by De Watergroep (a Belgian public water company) is extracted from 83 groundwater pumping sites. To control the risks that endanger the drinking water supply and for the groundwater extracted to be as pure as possible, a risk-based approach for the protection of the catchment areas is developed, as part of the water safety plans. The approach ...


    By IWA Publishing

  • Chlorofluorocarbon (CFC) remediation case study 2002

    Project Description The project site is located in Northern California and was leased and operated as a chemical storage and solvent recovery operation from late 1972 through April 1993. During an earlier period, the site may also have been used as a waste transfer station. Previous investigations indicate that soil and groundwater at the site, and groundwater down-gradient (westward) from the ...

  • Remediation of TCE in soil and groundwater to 95 feet below grade pemaco superfund site, Maywood, CA

    TRS Group, Inc. (TRS) subcontracted to TN & Associates to provide an Electrical Resistance Heating (ERH) remediation of trichloroethene (TCE) in soil and groundwater at the Pemaco Superfund Site located in Maywood, California. This is the first EPA Record of Decision (ROD) in California that includes ERH as the selected technology for the treatment of a deep TCE source area. The remedial goal ...


    By TRS Group, Inc.

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