contaminated site Articles

  • Fast bioremediation of a hydrocarbon contaminated site

    The use of bioremediation has been demonstrated to be a very effective treatment technology for a hydrocarbon contaminated site within a month of starting. In addition to selection and preparation of an appropriate microbial inoculum the other key considerations were effective mixing, addition of suitable nutrients and maintenance of soil moisture levels. Careful management of all these ...


    By Biofuture Ltd

  • Accelerating progress at contaminated sediment sites

    The “top five actions” presented by Bridges et al. in “Accelerating Progress at Contaminated Sediment Sites: Moving from Guidance to Practice” (IEAM 8(2):331‐338) represent an important set of normative guidelines that could accelerate progress at contaminated sediment sites. An important next step is to use those guidelines to develop recommendations about good practices. This letter presents ...


    By John Wiley & Sons, Ltd.

  • Contaminated land site investigation in Bristol

    Client: Property Developer Location: Bristol, UK Services: Contaminated Land Risk Assessment, Human Health Risk Assessment, Controlled Waters and Ecological Risk Assessment. Summary: ESI’s contaminated land assessment ensured that this former brickworks site was not registered as contaminated land under Part 2A of ...


    By ESI Consulting Ltd

  • 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.

  • In-Situ Bioremediation Treats Contaminants at a Disposal Site

    Site Summary A TCE-contaminated plume developed from buried drums containing organic solvents on the former Duluth Airbase. Soil excavation took place in the early 1990s and a total of 1,925 yds3 of soil were treated through land farming. A few years later, site assessment activities uncovered a VOC plume in groundwater and further monitoring revealed the breakdown of TCE to daughter products ...


    By Regenesis

  • Quantitative risk assessment for contaminated sites in Spain

    Environmental Quantitative Risk Assessment is one of the key factors in the Decision Making Process for contaminated sites. Numerous decisions have to be made before, during and after conducting a quantitative risk assessment.Risk assessment is based on the information gathered previously: Historical information (Phase I) Site characterization (Phase II) Toxicological ...

  • Contaminated Water

    Treatment of Contaminated Mine Water Discharge Recent estimates have suggested that in the UK 2,500 km of streams and an area of 9,000 km2 of groundwater bodies are at risk of failure of Water Framework Directive Objectives due to mine water pollution (Jarvis & Rees 2004). For over two decades the Loughor Estuary in South Wales, which carries SSSI status, had been ...


    By BritishFlora

  • NJDEP issuing remedial priority scores for contaminated sites

    Very shortly, the New Jersey Department of Environmental Protection (NJDEP) will be issuing letters to responsible parties containing a draft Remedial Priority Score (RPS) for their particular site. It is unclear how the rankings will be used, but the RPS system has been described as a tool to sort sites out for further discussion. The ...

  • Risk assessment and brownfields-determining exposure to site contaminants

    The USEPA’s Brownfields Program was developed to facilitate the rehabilitation of contaminated property for re-development. EPA has set forth criteria that must be met for a revitalized property to be used for residential, commercial or industrial purposes. The main thrust of these criteria is the long-term protection of residents or visitors (including shoppers and business employees). As ...

  • 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

  • Who will do the Cleanup? (Contaminated Sites Report 2007)

    To better understand Canada’s current capacity to meet this unique labour demand, ECO Canada undertook this study in early 2006. Our work was guided by a 29-member National Steering Committee from government, industry, and academia. In addition, a full-day National Forum on Contaminated Sites was held in Vancouver on March 28, 2006 to gain support and gather comments on the project from ...


    By ECO Canada

  • Transforming Ecosystems: When, Where, and How to Restore Contaminated Sites

    Chemical contamination has impaired ecosystems, reducing biodiversity and the provisioning of functions and services. This has spurred a movement to restore contaminated ecosystems and develop and implement national and international regulations that require it. Nevertheless, ecological restoration remains a young and rapidly growing discipline and its intersection with toxicology is even more ...


    By John Wiley & Sons, Ltd.

  • Geostatistical modelling of ground conditions to support the assessment of site contamination

    The pattern of ground contamination across a site depends on the historical pattern of contaminant releases at the surface and the redistribution and the fate of contaminants below the surface. Using these concepts a new site assessment approach (assessment modelling) is proposed based on the development of three stochastic models: a model of the physical structure of the ground materials beneath ...


    By Springer

  • Comparisons of different risk-based approaches for managing contaminated sites

    Over recent years, an increasing public and private concern has arisen over soil contamination following the closure of former industrialised sites or due to publicity over certain "scandals" (Love Canal in the United States) which occurred on former redeveloped industrial sites, affecting human health. Subsequently most countries have started a register of all industrial contaminated ...


    By Inderscience Publishers

  • Former Dry Cleaning Site Contaminated with PCE - Case Study

    In-Situ® Inc. TROLL® 9500 Multiparameter Sonde helps resolve treatment challenges and saves $200,000 in drilling, reagents, and consulting. A former dry-cleaning site in the Pacific Northwest, Ultra Custom Care Cleaners, was found to be contaminated with PCE (perchloroethylene). According to the U.S. Geological Survey (USGS), PCE was widely used in the dry cleaning of fabrics since the ...


    By In-Situ, Inc.

  • Identification of source of heavy metal contamination in a site - a case study

    Accidental spills and improper disposal of industrial effluent/sludge containing heavy metals onto the open land or into subsurface result in soil and water contamination. Detailed investigations are carried out to identify the source of contamination of heavy metals in an industrial suburb near Bangalore in India. Detailed investigation of ground water and subsurface soil analysis for various ...


    By Inderscience Publishers

  • Revitalizing contaminated sites: the revitalization handbook addressing liability concerns

    The Small Business Liability Relief and Brownfields Revitalization Act, (“Brownfields Amendments”), Pub. L. No. 107-118, enacted in January 2002, amended the Comprehensive Environmental Response, Compensation and Liability Act (“CERCLA”), to provide important liability limitations for landowners that qualify as: (1) bona fide prospective purchasers, (2) contiguous property owners, or (3) innocent ...

  • A framework for screening sites at risk from contaminants of emerging concern

    Trace levels of a variety of currently unregulated organic chemicals have been detected in treated wastewater effluents and surface waters that receive treated effluents. Many of these chemicals of emerging concern (CECs) originate from pharmaceuticals and personal care products that are used widely and that frequently are transported “down the drain” to a wastewater treatment plant (WWTP). ...


    By John Wiley & Sons, Ltd.

  • Integrated risk and recovery monitoring of ecosystem restorations on contaminated sites

    Ecological restorations of contaminated sites balance the human and ecological risks of residual contamination with the benefits of ecological recovery and the return of lost ecological function and ecosystem services. Risk and recovery are interrelated dynamic conditions, changing as remediation and restoration activities progress through implementation into long‐term management and ecosystem ...


    By John Wiley & Sons, Ltd.

  • Vinyl Chloride Contaminated Groundwater Enhancement Remediation at Massachusetts Landfill Site

    iSOC (in-situ Submerged Oxygen Curtain) Application Direct aerobics biostimulation to promote degradation of vinyl chloride in groundwater iSOC used to deliver oxygen for plume cut-off with aerobic treatment fences.   To view the full article click here ...

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