superfund site Articles

  • Marzone Superfund Site Remediation

    Marzone Superfund Site Project Description CH2M HILL conducted engineering, procurement, contracting, scientific and analytical support, community relations, and regulatory agency negotiations for Chevron. Through integrated and innovative efforts we remediated 20,000 tons of contaminated soils and impacted groundwater 3 years ahead of schedule. The latest in a long series of owners ...


    By CH2M Hill Companies, Ltd.

  • Superfund site - creosote removal

    Project Profile:US EPA Groundwater Remediation of Creosote Oil DATA: End User: US EPA, Army Corps of Engineers, Superfund site program Location: Bainbridge Island, WA Commissioned: Spring, 2005 Units: (1) FDB-7P Hydromation Deep Bed, Filter (HDBF) Flow Rate: 70 ...


    By Filtra Systems

  • Maywood, Ca - Pemaco superfund site

    Thermal Remediation Services, 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 ...


    By TRS Group, Inc.

  • THAN Superfund Site (Pilot), Montgomery, Alabama, USA

    Montgomery, Alabama, USA Project Bioremediation of Pesticide Impacted Soil/Sediment Summary Soil and sediment (~4,500 tons) impacted with Toxaphene, DDT, DDD and DDE were excavated from impacted areas on the site, including a surface water drainage way. Impacted soils were placed in a prepared bed on site and a cycled, anaerobic/aerobic bioremediation ...


  • Extensive remediation of superfund site - case study

    The 80 acre site, formerly a minerals processing facility, was operated primarily to recover lithium and other rare-earth minerals from ores. Raw ores were imported to the site for processing. During one phase of its operations, the facility also processed uranium ores for the government. The site was listed as by the U.S. Environmental Protection Agency (EPA) as a Comprehensive Environmental ...

  • Site Hazard, Settlement Activity and Superfund Liability Valuation

    HYPOTHESIS: Site (extent and cost of clean-up) and allocation uncertainty (number of parties associated with the site) surrounding contingent Superfund liabilities affect their market valuation. EPA data providing information on the extent of uncertainty surrounding contingent Superfund liabilities will be relevant to valuation. H-1: The number of Superfund sites with which a firm is identified ...


  • Case study - Pemaco superfund site remediation

    OVERVIEW Pemaco was formerly a chemical facility located in a light industrial and residential area of Maywood, CA, adjacent to the Los Angeles River. No one knows how long hazardous substances had been leaking into the ground but the operations date back to the 1940's.  Up until closure of the facility in 1991, chlorinated solvents, aromatic solvents, and flammable liquids had ...

  • Building and breaking a bridge of trust in a Superfund site remediation

    Trust is widely recognised as a key variable in perceptions and decision-making about environmental risks. However, most considerations of trust treat it as a simple two-agent relationship. Based on an analysis of a contaminated site cleanup in New Jersey, we identify a more complex construction of trust formed between multiple stakeholders. We refer to this construction as 'bridging'. In the ...


    By Inderscience Publishers

  • Continuous Arsenic monitoring at US EPA Superfund site

    A Cogent Environmental continuous heavy metals analyser, the OVA5000, has been configured to provide accurate Arsenic monitoring data at a US EPA Superfund site in New Jersey, USA, since 2005. The following information will outline the ways in which this technology has helped to protect the environment at the site, ensuring compliance with discharge consents and helping the remediation contractor ...

  • Texas Superfund Case Study

    The site is a former refinery that occupied approximately 64 acres of land in West Texas. Refinery operations produced all grades of gasoline, tractor fuels, diesel, distillate products, and fuel oils and operated between 1939 and 1954. As a result of past waste management practices, releases to soils and ultimately ground water occurred, resulting in the formation of a dissolved-phase benzene ...


    By GEO Inc

  • Top 10 questions to ask when buying a superfund site

    The purpose of this document is to provide answers to some of the questions that a prospective purchaser may have when considering whether to purchase property at a privately owned Superfund site. The U.S. Environmental Protection Agency (EPA) supports the reuse of Superfund sites and believes this document may be useful in clarifying some of the opportunities and issues associated with their ...

  • Monitored natural recovery of PCB-contaminated sediments at the Lake Hartwell Superfund site

    A series of three articles describing a study evaluating the natural recovery of surface sediments contaminated with polychlorinated biphenyls (PCBs) at the Sangamo-Weston/Twelvemile Creek/Lake Hartwell Superfund Site in Pickens County, South ...


    By ENVIRON

  • Managing bioremediation of a creosote-contaminated superfund site by optimizing moisture and temperature in a biopile

    Soil moisture content and temperature in a contaminated soil biopile equipped with immobilized microbe bioreactors (IMBRs) were optimized during ex situ bioremediation at a creosotecontaminated Superfund site. Efficiency of remediation during warm summer months without soil-temperature and moisture optimization was compared with that of cold winter months when corrective measures were applied. ...


  • Bunker Hill Superfund Site Wetlands Restoration Environmental Protection Agency

    Bunker Hill Superfund Site Wetlands, Idaho • Provided complete range of environmental services for restoration of 21 square miles of land mined for over 100 years • Designed a soil stabilization program that included check dam installations and application of soil amendments using innovative aerial application techniques on a difficult landscape • Site studies, combined with adaptive ...


    By CH2M Hill Companies, Ltd.

  • A dynamite job? Cleaning up trinitrotoluene waste at the Apache powder superfund site.

    The clean up of trinitrotoluene (TNT) wastes and contaminated soils from an abandoned TNT salvage operation is underway at the Apache Powder Superfund Site in Cochise County. Clean-up operations involved an unexploded ordnance (UXO) survey, on-site pre-burn of high-grade materials, excavation, and off-site disposal. Approximately 5,400 lb of high-grade TNT wastes (averaging approximately 33 ...


    By Hargis + Associates Inc

  • Field Screening Methods for the Presence of DNAPL, Superfund Site, southern California

    Characterizing the lateral and vertical extent at a Dense Non Aqueous Phase Liquid (DNAPL) impacted site can prove to be a challenging task. Field methods employed to verify the presence of DNAPL have included the use of down-hole Ultraviolet Induced Florescence technologies, the application of down-hole detection materials such as dye impregnated fabrics, and the installation of monitor wells ...


    By Hargis + Associates Inc

  • ERH & MPE remediation of DNAPL and LNAPL fort lewis superfund site, Washington

    As the prime contractor, TRS Group, Inc. (TRS) designed and operated Electrical Resistance Heating (ERH) systemsto treat three LNAPL/DNAPL source areas at the Ft. Lewis, East Gate Disposal Yard (EGDY) NPL site. Contaminants ofconcern in NAPL Areas 1, 2 and 3 included chlorinated solvents, primarily trichloroethene (TCE), and POLs (petroleum products, oil and lubricants). Based upon pre- and ...


    By TRS Group, Inc.

  • Superfund Compliance Review - Document/site review and investigation - Case Study

    Midwestern US The Summary We provided expertise in determining if previously closed waste management units and ongoing remediation efforts at an oil facility were and are being conducted in a manner consistent with applicable provisions of the federal Superfund program and the National Oil and Hazardous Substances Pollution Contingency Plan (NCP). ...


    By AlterEcho

  • Tacoma, Washington - Well 12A superfund site - Case Study

    Combined Remedies for DNAPL Remediation Project Summary TRS Group, Inc. (TRS) teamed with KEMRON and AMEC, under KEMRON's U.S. Army Corps of Engineers (USAGE) Environmental Remediation Services Multiple Award Task Order Contract (MATOC), to perform electrical resistance heating (ERH) for the remediation of volatile organic compounds (VOCs) in the vadose zone ...


    By TRS Group, Inc.

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