groundwater contamination Articles

  • Why You Should Monitor Groundwater?

    What is groundwater? Groundwater is water that is stored below the earth’s surface. When rain or other sources of water come into contact with the ground, the majority of it travels below the surface. Though much of this moisture is then absorbed by plants or returned to the atmosphere (through infiltration), some water will travel deeper beneath the surface – where it ...


    By Aquaread Limited

  • Train derailment prompts contaminated land investigation - Case study

    On March 30th 2015 a long freight train, transporting a variety of goods including lumber and chemicals, wound its way through the state of Mississippi. At around 5pm, part of the train failed to negotiate a curved portion of the track in a rural area near Minter City, resulting in the derailment of nine railcars, one of which leaked chemicals onto agricultural farmland and woodlands. Emergency ...


    By Gasmet Technologies Oy

  • Dressing down groundwater contamination

    Unlike the late Paul Newman, who bottled his special-recipe salad dressing and sold it in supermarkets, Dr. Robert Borden simply mixes up his own 'dressing' and pumps it into the ground. That’s because the environmental engineering professor and his graduate students are more interested in feeding microbes to clean up contaminated groundwater than in making just another Ranch dressing. “It’s ...


    By EOS Remediation, LLC

  • Groundwater and contaminant transport modelling

    Client: Nuclear Industry Location: Cumbria, UK Services: Radioactive waste consultancy, hydrogeological risk assessment Issues: Potential risk to groundwater, environment and human health. System conceptualisation Summary: ESI developed a FEFLOW finite element model of the groundwater system in the ...


    By ESI Consulting Ltd

  • 3 Scientific Tools to Help You Better Understand Your Water Quality

    There are many ways of testing and understanding your water quality with online scientific tools and models. One such resource is the National Water-Quality Assessment (NAWQA) project run by the U.S. Geological Survey (USGS). The project, which was founded in 1991 to develop reliable information about water sources to support decisions on water quality management ...

  • Gasoline Contaminants in Groundwater - Case Study

    Site Overview Active gas station in Sebring, FL FDEP Site Number: 8629375 Contamination Gasoline contaminants in ground water Two site features that have long been a detriment to chemical oxidant treatments at sites have recently been overcome by EN Rx. These are free product treatment ...


    By EN Rx

  • Remediation Of MTBE Contaminated Soil And Groundwater

    Methyl tertiary-butyl ether (MTBE) is a fuel additive made, in part, from natural gas. Since 1979, it has been used in the United States as an octane enhancing replacement for lead, primarily in midand high-grade gasoline at concentrations as high as 8 percent (by volume). Since the mid-1980s, it has been widely used throughout the country for this purpose. It is also used as a fuel oxygenate at ...

  • Environmental Data Management for Groundwater Contamination

    ESdat environmental data management software has been used to manage and report on large datasets generated from an investigation of groundwater contamination on an industrial facility in Adelaide. ESdat was used in managing site data and the maintenance of conceptual model and time series outputs at a complex site over an extended period. Leakages of TCE and the subsequent ...

  • Remediating groundwater contaminated with chlorinated solvents

    Chlorinated solvent contaminationof groundwater is a recognizedbarrier to both potablewater use and brownfield siteredevelopment in Canada.Several high-profile trichloroethene(TCE) contaminant issues such as thosein Cambridge, Ontario, and in Shannon,Québec, have increased public awarenessof this problem, and ...


  • Remediation technology of groundwater contaminated by perchloroethylene

    To dechlorinate perchloroethylene (PCE), batch experiments were conducted for five groups of reactors: zero-valent iron (Fe0), zero-valent zinc (Zn0), an anaerobic microbial community (MB), a combination of iron powder and an anaerobic microbial community (FeMB), and combination of zinc powder and an ...


    By Inderscience Publishers

  • Remediation of Metals-Contaminated Soils and Groundwater

    A range of technologies is available for remediation of metals-contaminated soil and groundwater at Superfund sites. General approaches to remediation of metal contamination include isolation, immobilization, toxicity reduction, physical separation and extraction. These general approaches can be used for many types of contaminants but the specific technology selected for treatment of a ...


    By Richflood International Ltd

  • Contamination of groundwater and the risk to human health

    Groundwater is a major source of drinking water in many parts of the world. In industrialised countries, there is increasing concern that groundwater reserves are being contaminated by industrial effluents and the chemical pesticides and fertilizers used in intensive farming. This paper compares some of the existing guidelines for acceptable concentrations of certain common contaminants in ...


    By Inderscience Publishers

  • 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

  • GCW as a means of efficiently remediating contaminated groundwater

    With the conventional 'Pump & Treat' method, groundwater is normally extracted from one or several wells, cleaned above ground and disposed off to the either groundwater or surface water. Even when extraction and injection wells are combined, predominantly higher perme-able areas are preferentially penetrated and more fine-grained structures are circumflowed. The bulk of contaminants are ...


    By IEG Technologie GmbH

  • Portable belt skimmer cleans up contaminated groundwater

    Chemviron Midwest, Inc. an industrial consulting and remediation firm in Wooster, Ohio frequently needs to recover hydrocarbons from groundwater. Typical situations include remedial studies, soil contamination, groundwater studies, environmental compliance, permitting applications and environmental site assessments during property transfers. Because of the variety of situations encountered, the ...


    By Abanaki Corporation

  • Combining HVME and Enhanced Bioremediation for Gasoline Contamination in Groundwater

    A leaking underground storage tank at a commercial petroleum retail site located in Haskell, Texas resulted in soil and groundwater petroleum hydrocarbon contamination. This contamination, including benzene, toluene, ethylbenzene, and total xylenes (BTEX) and total petroleum hydrocarbons (TPH) migrated down-gradient below a road and neighboring property. Access below the adjacent roadway was ...


    By Regenesis

  • Groundwater contamination of 1,1,1-TCA, PCE - Manufacturing facility

    LOCATION:  Glen Cove, New YorkPROJECT DATE:  September 2000 to presentCLIENT:  Confidential BACKGROUND: Groundwater in a sand and gravel aquifer beneath this active manufacturing facility was contaminated with 1,1,1-TCA (concentrations up to 480 mg/L), PCE, and their degradation products. The site owner, faced with a long term (in excess of 100 years) and expensive pump and treat ...


    By Terra Systems, Inc. (TSI)

  • Optimal groundwater contamination monitoring using pumping wells

    This study presents a new method for selecting monitoring wells for optimal evaluation of groundwater quality. The basic approach of this work is motivated by difficulties in interpolating groundwater quality from information collected for only few sampled wells. The well selection relies on other existing data relevant to contaminant distribution in the sampling domain, e.g. predictions of ...


    By IWA Publishing

  • Contaminated Groundwater Cleaned by Granular Carbon System

    Untitled Document Summary: A granular activated carbon system developed by Calgon Corp., is being used to remove various toxic materials from contaminated groundwater at ...


    By Calgon Carbon Corporation

  • Modeling Leachate Contamination and Remediation of Groundwater at a Landfill Site

    Leachate contamination of an aquifer from a landfill sitewas simulated using the groundwater flow and transport model SUTRA developed by the U.S. Geological Survey. The model calibration was performed by spatially adjusting the hydraulic conductivity in order to capture the measured hydraulic head spatial variation and then by adjusting the dispersivity and porosity match the measured chloride ...


    By Springer

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