contaminated aquifer News

  • Study: Two major U.S. aquifers contaminated by natural uranium

    Nearly 2 million people throughout the Great Plains and California live above aquifer sites contaminated with natural uranium that is mobilized by human-contributed nitrate, according to a study from the University of Nebraska-Lincoln. Data from roughly 275,000 groundwater samples in the High Plains and Central Valley aquifers show that many Americans live less than two-thirds of a mile from ...


  • EPA proposes the west troy contaminated aquifer site in Ohio for superfund national priorities list

    The U.S. Environmental Protection Agency today proposed adding the West Troy Contaminated Aquifer in Troy, Ohio, to the National Priorities List of Superfund sites. Superfund is the federal program that investigates and cleans up the most complex, uncontrolled or abandoned hazardous waste sites in the country. The city of Troy operates two well fields along a 1.25-mile segment of the Great Miami ...

  • High resolution multi-level monitoring for bedrock aquifers

    This presentation describes a comprehensive approach for determining the nature, extent, transport and fate of contaminants at industrial sites on fractured rock, with emphasis on sedimentary rock, referred to as the Discrete Fracture Network (DFN) approach. Development of this DFN approach began at a sandstone site in California in 1997, where the initial version of a method for measuring ...


    By Solinst Canada Ltd.

  • Technical Announcement: Bacteria No Match for Deep Floridan Aquifer

    A first of its kind study has the potential to impact future regulatory decisions on disinfection practices for water prior to its recharge or following its storage in the Floridan Aquifer. The U.S Geological Survey report found that coliform bacteria die off faster in a regional aquifer system ...

  • Idaho aquifer decline could hinder radioactive monitoring

    A continued drop in underground water levels could make it more difficult to monitor the movement of radioactive contamination in an aquifer below an eastern Idaho nuclear facility, scientists say. Researchers with the U.S. Geological Survey in a 36-page report released Monday said the Eastern Snake River Plain Aquifer level has dropped below ...


    By Associated Press

  • California authorizes oilfield dumping into protected aquifers

    Regulators in California, the country's third-largest oil-producing state, have authorized oil companies to inject production fluids and waste into what are now federally protected aquifers more than 2,500 times, risking contamination of underground water supplies that could be used for drinking water or irrigation, state records show. While some of the permits go back decades, an Associated ...


    By Associated Press

  • U.S. EPA Seeks Public Comment on Mahomet Aquifer Designation

    The U.S. Environmental Protection Agency today proposed approval of a petition to designate a portion of the Mahomet Aquifer system in east-central Illinois as a sole source aquifer. EPA’s public comment period on the proposed designation begins March 13 and closes June 12, 2014. The Safe Drinking Water Act gives EPA authority to designate an aquifer as a sole or principal source of ...

  • Potential of hydraulic fracturing fluids escaping to aquifers subject of new paper in Groundwater

    A recently published scientific paper offers a numerical study of the potential for fluids related to hydraulic fracturing to escape into usable aquifers via nearby abandoned wells. The article was published in National Ground Water Association’s flagship technical journal, Groundwater®. Titled “Influence of Hydraulic Fracturing on Overlying Aquifers in the Presence of Leaky ...

  • Tungsten groundwater contamination

    Originally thought to be non-toxic, tungsten is replacing lead in fishing weights and in ammunition for hunting and recreational shooting. However, recent studies indicate that (under certain environmental conditions) some forms of tungsten can move readily through soil and leach into groundwater. A Kansas State University scientist investigates. Tungsten is a naturally occurring metallic element ...


  • Contaminants in US groundwater

    According to a new study by the USGS, more than 20% of untreated water samples from 932 public wells across the US contained at least one contaminant at levels of potential health concern. About one-third of the US population receive their drinking water from such a system. The USGS study (Contaminants in Groundwater used for ...


  • Drinking water wells vulnerable to contamination

    New USGS groundwater studies explain what, when, and how contaminants may reach public-supply wells. All wells are not equally vulnerable to contamination because of differences in three factors: the general chemistry of the aquifer, groundwater age, and direct paths within aquifer systems that allow water and contaminants to reach a well. More than 100 million people in the United States ...


  • Encouraging results in evaluating groundwater contaminants

    The widespread use of pesticides across the United States has been in practice for decades, with little knowledge of the long-term effects on the nation’s groundwater. The results of a new study show that samples taken from over 300 wells across the US have not retained a high concentration of pesticide contamination. The news is a result of a decadal long study to assess the extent of the ...

  • EPA orders Dona Ana county and Las Cruces to clean drinking water aquifer

    The U.S. Environmental Protection Agency (EPA) recently issued an order to Doña Ana County and the City of Las Cruces to clean a contaminated ground water aquifer under the city. The aquifer has been used by the City of Las Cruces for drinking water and poses an imminent and substantial danger to anyone who drinks from it. The city and county will be required to build a system that will ...

  • EPA Designates Mahomet Aquifer as `Sole Source` of Drinking Water in East-Central Illinois

    The U.S. Environmental Protection Agency today announced a decision to designate a portion of the Mahomet Aquifer system as a sole source aquifer. More than half of the population in east-central Illinois relies on the Mahomet Aquifer system as a source of drinking water. The Safe Drinking Water Act gives EPA authority to designate all or part of an aquifer as a "sole source" if contamination of ...

  • Milford, Ohio aquifer site proposed to be added to superfund national priorities list (OH)

    U.S. Environmental Protection Agency Region 5 announced today that a contaminated aquifer in Milford, Ohio, is one of nine hazardous waste sites proposed to be added to the Superfund section of the National Priorities List. Superfund is the federal program that investigates and cleans up the most complex, uncontrolled or abandoned hazardous waste sites in the country. There are a total of 1,343 ...

  • EOS Remediation invites you to the Webinar: Adjustment of Aquifer pH with an Alkaline Colloidal Suspension

    About This Webinar... TITLE:  Adjustment of Aquifer pH with an Alkaline Colloidal Suspension SPEAKER: Bilgen Yuncu, Ph.D., P.E., CAPM  DATE: January 14, 2015 ...


    By EOS Remediation, LLC

  • Aquifer tests, environmental forensics, and groundwater modeling subjects of June NGWA short courses

    Ground water industry professionals have the opportunity to increase their knowledge with three National Ground Water Association short courses taking place this June.'Analysis and Design of Aquifer Tests Including Slug Tests and Fracture Flow,' taking place June 8-10 in Dublin, Ohio, presents the theory of various methods for aquifer testing and analysis in a variety of settings, as well as ...

  • OS Remediation Invites You To A Webinar: Fate of Vinyl Chloride in Aquifers: Organisms, Pathways, and Monitoring Tools

    As a proven human carcinogen, vinyl chloride (VC) is a major risk factor in many contaminated aquifers.  Lingering concentrations above the maximum concentration level (MCL) of 2 ppb generally prevent site closures, thus requiring continued remedial and monitoring efforts.  Knowledge of the pathways and mechanisms that contribute to VC detoxification is essential to predict the fate and ...


    By EOS Remediation, LLC

  • Scientists suggest alternative source of arsenic contamination

    New research contradicts previous findings that arsenic contamination — an environmental crisis that affects more than 60 million people in the Bengal Basin — in groundwater may result from arsenic coming from man-made ponds, suggesting instead that it originates in sediments in aquifers. Groundwater ...


    By SciDev.Net

  • Density dependant water flow and contaminant transport

    SoilVision Systems Ltd. would like to announce the release of the addition of fully coupled density-dependent water flow and contaminant transport in ChemFlux and SVFlux. Using the new density-dependent flow capability can improve the accuracy of the simulation of heavy salt water. This new feature has been implemented in 1D, 2D, and 3D models and is enabled to work with the Professional version ...


    By SoilVision Systems Ltd.

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