vapor beneath building Articles

  • Using bioaugmentation to reduce risks and costs associated with vapor intrusion

    The risk driver for remedial action on many sites is potential vapor intrusion hazard. While mitigation of the vapors entering the structure can reduce the risk to an acceptable level, there are associated long-term monitoring, operation and maintenance costs. Bioremediation of the source of vapors can reduce the risk and eliminate long-term costs. The vapor intrusion risk is managed by ...


    By CL Solutions, LLC

  • Vapor Encroachment Screening:A Necessary Task in Environmental Due Diligence

    Real Estate, Banking, and Environmental professionals are very familiar with ASTM E 1527-05, Standard Practice for Phase I Environmental Site Assessments, used as a routine due diligence element for real property transactions.  Less widely known and less frequently incorporated as a formal element in the environmental due diligence process is ASTM Standard Guide for ...

  • Plume Control under a City Building

    Subsurface remediation in a big city setting is complicated. Limited work space, heavy traffic, noise restrictions, and a dense network of utilities are just some of the factors that conspire to make the installation of any in situ plume control or plume reduction system a seemingly unsolvable logistical puzzle. Horizontal wells placed directly beneath a building can provide protection from soil ...

  • Gas vapor mitigation system utilizing evoh technology as solution to TCE contamination case study

    Project: El Centro Regional Medical Clinic Location: El Centre CA Products: Liquid Boot PLUS Gas Vapor Mitigation System with VI-20™ Geomembrane GeoVent™ Gas Venting System Background: Prior land use was for "El Centra Motors", an automobile dealership and service facility. There was some contamination in the soil ...


    By CETCO

  • Spray-applied barrier is proven vapor mitigation strategy for site with methane case study

    Project: Canada Post Location: Toronto, ON, Canada Products: Liquid Boot® Gas Vapor Mitigation System, GeoVent™ Gas Venting System Background: The site for the new Canada Post headquarters was situated on a former industrial location and is a major redevelopment zone for the city of Toronto. The site was ...


    By CETCO

  • Prominant developer chooses cetco gas vapor barrier for chromium protection case study

    Project: Droyers Point Location: Jersey City, NJ Products: Liquid Boot® Gas Vapor Mitigation System Background: During the summer of 2004, construction commenced on a multi-family housing plan, developed by K. Hovnanian Homes. This 23-acre Brownfield redevelopment project included 30 new three-story townhouse buildings ...


    By CETCO

  • CETCO vapor mitigation system chosen as voc protection barrier for school campus case study

    Project: Mott Haven School Location: Bronx, NY Products: Liquid Boot® Gas Vapor Mitigation System Background: The Mott Haven School Campus was to be built on a former manufacturing site with residual contaminants in the soil. Challenge: The site for the school development underwent a series of ...


    By CETCO

  • Program developed to ensure long-term O&M and performance of vapor intrusion mitigation

    EPA Region 7 has developed a comprehensive VI program to address the installation and long-term operation and maintenance (O&M) of VI mitigation systems, as well as assessment sampling for future systems, in homes near the Chemical Commodities, Inc. Superfund site (CCI). Region 7's VI Program Implementation Manual, which describes decision processes and procedures as well as roles and ...

  • Redwood City Case (In Situ Gas Thermal Remediation + C3 Technology (GTR™+C3))

    The former Dry Cleaner site was located in Redwood City, California, contaminated by tetrachloroethylene (PCE). Affected soils also contained low levels of PCE degradation byproducts, such as trichloroethylene (TCE), and were presumed to have an approximate extent of 384 square feet (16’ x 24’ area) to a depth of 10 feet beneath the building. The remediation goal was driven by vapor ...


    By GEO Inc

  • First State-funded cleanup using electrical resistivity heating technology

    The Remediation and Redevelopment Division (RRD) completed remediation at a former dry cleaning facility in the city of Owosso using electrical resistivity heating (ERH) technology. Electrical resistivity heating is an in­situ electrical heating technology that uses electricity and applies it into the ground through electrodes. The resistance of the electricity traveling through the ground ...


    By TRS Group, Inc.

  • Enhanced Removal of Separate Phase Viscous Fuel by Electrical Resistance Heating and multi phase Extraction

    Abstract A floating hydrocarbon plume at a manufacturing facility in Georgia was remediated using electrical resistance heating (ERH) and multi-phase extraction. The hydrocarbon was a specialty fuel similar to kerosene or diesel fuel. Initially, hydrocarbon covered an area of 4900 ft2 (500 m2) and was up to l0 ft (3 m) thick, with most wells containing 1-3 ft (0.5-1 m) of hydrocarbon. ...


    By TRS Group, Inc.

  • Air emissions impact measurements at a perchloroethene remediation site

    As part of an U.S. EPA time critical removal action, an air monitoring system was established to measure real-time impacts of perchloroethene (PCE) on the surrounding areas. The soils and groundwater beneath the site (located in West Fargo, North Dakota) were treated using in situ heating of soil and groundwater, with the produced vapors collected using conventional vapor extraction. In order ...


    By VOC Technologies

  • Case study: Redwood City

    GTR + C3 Overview Neighborhood: Downtown Heating Tubes: 9 Heating Period: 6.5 Months Destruction Rate Efficiency: > 99% Contaminant: PCE, TCE Geology: Silt Silty Clay Volume: 142 yd3 ...

  • Horizontal Wells - Technology Overview

    Horizontal well technology has been incorporated into many current environmental remediation applications (and associated contaminants), such as in situ bioremediation, air sparging, vacuum extraction, soil flushing, free product recovery, etc. Ac cording to information reviewed, this technology is most applicable to sites with relatively shallow soil and/or groundwater contamination, and can ...

  • 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.

  • Bacteria devours gasoline plume

    The new environmental technology essentially flushes contamination out of the soil. NORTHAMPTON - With hungry bacteria and reusable carbon filters, an engineering company is slowly but surely removing a massive plume of gasoline from beneath a busy section of Pleasant Street. Traffic and business activity haven't had to skip a beat as Penney Engineering, of Mansfield, cleans up the ...


    By Penney Engineering, Inc

  • Newark, CA - Guaranteed PCE and TCE remediation - Case Study

    Guaranteed PCE and TCE Remediation at Hazardous Waste Facility Project Summary TRS Group, Inc. (TRS) completed a Guaranteed Fixed Price Remediation (GFPR) of tetrachloroethene (PCE), trichioroethene (TCE), cis-l,2-dichloroethene (cis 1,2-DCE), 1,1,1-trichloroethane (1,1,1-TCA), 1,1-dichloroethene (1,1-DCE), 1,1-dichloroethane (1,1-DCA), methylene chloride, ...


    By TRS Group, Inc.

  • Remediation of TCE NAPL in active Alleyway Arlington, Texas - Case Study

    Goals to achieve separate analyte-specific clean-up goals in clay soils and groundwater respectively Project Summary TRS Group, Inc. (TRS) completed a Guaranteed Fixed Price Remediation (GFPR) of tetrachioroethene (PCE), trichioroethene (TCE), cis-l,2-dichloroethene (cis 1,2-DCE), 1,1,1-trichloroethane (1,1,1-TCA), 1,1-dichloroethene (1,1-DCE), ...


    By TRS Group, Inc.

  • In Situ Solidification/Stabilization

    Introduction Solidification/stabilization (S/S) reduces the mobility of hazardous substances and contaminants in the environment through both physical and chemical means. Unlike other remedial technologies, S/S seeks to trap or immobilize contaminants within their 'host' medium (i.e., the soil, sand, and/or building materials that contain them), instead of removing them through chemical or ...

  • These fires are huge, hidden and harmful. What can we do?

    Smoldering peat gives off massive quantities of carbon dioxide and other pollutants, but the search for solutions is on. As forest fires devastated Fort McMurray, Alberta, last month, a different sort of fire may have started beneath the ground. Peat, a carbon-rich soil created from partially decomposed, waterlogged vegetation accumulated over several millennia and the stuff ...


    By Ensia

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you