underground aquifer News

  • UNESCO publishes first world map of underground transboundary aquifers

    UNESCO is publishing the first-ever world map of shared aquifers to coincide with the submission to the General Assembly of the United Nations on 27 October of a draft Convention on Transboundary Aquifers. Almost 96% of the planet’s freshwater resources are to be found in underground aquifers, most of which straddle national boundaries. Despite its strategic importance, no global inventory of ...


    By UNESCO

  • International conference on transboundary aquifers

    UNESCO is organising an international conference about transboundary aquifers at Organization Headquarters from 6th to 8th December in collaboration with the International Association of Hydrogeologists (IAH) and the United Nations Environment Programme (UNEP). Underground aquifers represent nearly 96% of the planet's freshwater, i.e. a volume 100 times higher than that of surface freshwater. In ...

  • Runoff research promotes healthier aquifers

    Where rain falls can influence the quality of surface water before it enters underground reservoirs, some of which provide water that eventually comes out of our taps. That's one conclusion from a collaborative study by the Agricultural Research Service (ARS) and the University of Arizona (UA). The ARS and UA scientists are investigating how urban landscapes influence storm runoff and water ...

  • Jaffna aquifer depleting from overuse

    The single limestone aquifer, which is the main source of freshwater in Sri Lanka's northern Jaffna peninsula, is gradually depleting through overuse, researchers say. "The area suffers from severe groundwater imbalance which might reach crisis proportions in the future," Shanti de Silva, one of two scientists who ...


    By SciDev.Net

  • Predicting the fate of underground carbon

    A team of researchers at the Massachusetts Institute of Technology has developed a new modeling methodology for determining the capacity and assessing the risks of leakage of potential underground carbon-dioxide reservoirs. One strategy for mitigating greenhouse gases is to inject compressed carbon dioxide into natural aquifers made of permeable rock soaked with brackish salt water. Carbon ...


    By ScienceDaily

  • 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

  • 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

  • Modeling underground sequestration of carbon dioxide

    When it comes to predicting the fate of captured carbon dioxide (CO2) stored underground, 2008 Henry Darcy Distinguished Lecturer Michael Celia, Ph.D., and his colleagues have invented a better mousetrap for decision-makers trying to mitigate the effects of CO2 emissions into the atmosphere. Celia wrapped up his year as the National Ground Water Research and Educational's Foundation Darcy ...

  • Underground oasis may boost Egypt`s development

    The Egyptian government is launching work on experimental wells in the desert following a discovery of new access points to a huge underground water oasis spanning Chad, Egypt, Libya and Sudan. The underwater aquifer, ...


    By SciDev.Net

  • California pledges changes in protecting underground water

    California has proposed closing by October up to 140 oil-field wells that state regulators had allowed to inject into federally protected drinking water aquifers, state officials said. The deadline is part of a broad plan the state sent the U.S. Environmental Protection Agency last week for bringing state regulation of oil and gas operations back into compliance with federal safe-drinking water ...


    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 ...

  • In drought, water war in California fought underground

    For decades, this city in California's agricultural heartland relied exclusively on cheap, plentiful groundwater and pumped increasingly larger amounts from an aquifer as its population grew. But eventually, the water table dropped by more than 100 feet, causing some of Fresno's wells to cave in and others to slow to a trickle. The cost of replacing those wells and extracting groundwater ...


    By Associated Press

  • New tool could aid safe underground storage of CO2, says MIT

    To prevent global warming, researchers and policymakers are exploring a variety of options to significantly cut the amount of carbon dioxide that reaches the atmosphere. One possible approach involves capturing greenhouse gases such as carbon dioxide at the source -- an electric power plant, for example -- and then injecting them underground. While theoretically promising, the technique has never ...

  • 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 ...

  • Opportunities for geothermal energy: New method reveals past underground temperatures

    Rocks store information about the temperatures that they have experienced. Wageningen University researchers and international colleagues are the first to develop a method that reveals low-temperature information (from 35 °C and higher) on a relatively short timescale of thousands of years. The new method might find application in locating geothermal reservoirs and in maintaining underground ...

  • Satellite Study Reveals Parched U.S. West Using Up Underground Water

    A new study by NASA and University of California, Irvine, scientists finds more than 75 percent of the water loss in the drought-stricken Colorado River Basin since late 2004 came from underground resources. The extent of groundwater loss may pose a greater threat to the water supply of the western United States than previously thought. This study is the first to quantify the amount that ...

  • EPA to revise permit associated with aquifer pump test at Weld County (Colo.) uranium site

    The U.S. Environmental Protection Agency (EPA) will revise and reissue a permit authorizing Powertech, USA, to re-inject water as part of an aquifer pump test at the proposed Centennial uranium recovery site in Weld County, Colo. The new draft Underground Injection Control (UIC) Class V permit will include a specific water pressure requirement for reinjection that was inadvertently not included ...

  • EPA issues permit associated with aquifer pump test at weld county (Colo.) uranium site

    The U.S. Environmental Protection Agency has issued an injection well permit to Powertech, (USA) Inc. that will enable the company to re-inject groundwater from an aquifer pump test at the proposed Centennial uranium site in Weld County, Colorado. This Underground Injection Control (UIC) Class V permit does not allow any uranium recovery activity at the site. The permitted activity is limited ...

  • EPA issues new draft permit associated with aquifer pump test at weld county (Colo.) Uranium site

    The U.S. Environmental Protection Agency (EPA) has revised and reissued a permit authorizing Powertech, USA, to re-inject water as part of an aquifer pump test at the proposed Centennial uranium recovery site in Weld County, Colo. The new draft Underground Injection Control (UIC) Class V permit includes a specific pressure requirement for re-injection that was inadvertently not included in a ...

  • AwwaRF announces fast-track study on potential effects of underground carbon sequestration on groundwater resources

    The Awwa Research Foundation (AwwaRF), the nation’s leading drinking water research organization, announced a new study to investigate the potential effect of underground carbon sequestration on groundwater resources. Currently undergoing examination as a method for reducing greenhouse gas emissions, carbon sequestration entails separating carbon dioxide (CO2) from other emissions and injecting ...


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