aquifer study News

  • Studies reveal why drinking water wells are 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 receive ...

  • 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 ...

  • Satellite measurement of permanent loss to California groundwater source

    Researchers used satellite data to measure water volume changes due to groundwater variation in the aquifer, to show California’s Central Valley aquifer, the major source of groundwater in the region, suffered permanent loss of capacity during the drought experienced in the area from 2012 to 2015. California’s Central Valley aquifer, the major source of groundwater in the region, ...

  • Study Assesses Threats to Groundwater Availability and Sustainability in Northern Atlantic Coastal Plain

    Scientists Look at Issue from Long Island to North Carolina Threats to groundwater availability and sustainability in the Northern Atlantic Coastal Plain are dependent to a large degree by the type of aquifers used for water supply, according to a new regional assessment by the U.S. Geological Survey. The water challenges ...

  • Too soon to tap Namibia`s groundwater find, experts say

    The extraction of the much needed water from a large underground aquifer in northern Namibia may need to wait for further studies, officials have warned at a water investment conference. The aquifer, discovered in July, may contain enough water to sustain about one million people living in the area for 400 years at ...


    By SciDev.Net

  • Mr. Eron Dodak of Integral Consulting coauthors paper in Journal of Hydrologic Engineering

    Mr. Eron Dodak, R.G., L.H.G., of Integral Consulting has coauthored a paper titled “Numerical Study of Bromide as a Tracer for Aquifer Macrodispersivity Tests: Comparing Conservative Behavior to Mildly Nonlinear Adsorption.” This paper demonstrates that aquifer macrodispersivity can be accurately estimated in natural gradient tracer tests using a groundwater tracer exhibiting weakly nonlinear ...


    By Integral Consulting Inc.

  • Drinking recycled water?

    The Australian Government National Water Commission funded a study to establish an approach to assess the quality of water treated using managed aquifer recharge. Researchers at Australia’s CSIRO Land and Water set out to determine if the en product would meet standard drinking water guidelines. At the Parafield Aquifer Storage, Transfer and Recovery research project in South Australia, the ...

  • Groundwater footprint reveals unsustainable water consumption

    Reservoirs of water stored under the earth’s surface, otherwise known as groundwater, are a valuable resource. However, using a footprinting method, a new global study has indicated that about 1.7 billion people live in areas where groundwater is being used more quickly than it can be replenished. Groundwater supplies water to billions of people and is important for agricultural ...

  • 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 ...

  • Groundwater Resources Generally Abundant in Coastal Carolinas

    Large volumes of high quality groundwater fill aquifers along the Atlantic Coastal Plain (ACP) in North and South Carolina. Groundwater levels in much of the region remain relatively unchanged from predevelopment days, despite declines in some locations from large-scale pumping. These are among the key findings of a major federal study, conducted by the U.S. Geological Survey, to assess the ...

  • Natural processes can limit spread of arsenic in water, says study

    Many people in Bangladesh and other parts of Asia have been poisoned by drinking groundwater laced with arsenic—not introduced by humans, but leached naturally from sediments, and now being tapped by shallow drinking wells. In recent years, to avoid the problem, deeper wells have been sunk 500 feet or more to purer waters—but fears have remained that when deep water is pumped out, ...

  • 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 ...

  • Aquifer ph and enhanced reductive dechlorination

    The recent Battelle Memorial Institute symposium on bioremediation1 in Baltimore, MD featured a focused session of platform presentations on the timely topic of Bioremediation in Low-pH Aquifers. Throughout the session we heard a variety of case studies and viewpoints, with the primary focus of the session being biological reductive dechlorination of chlorinated ethenes (PCE, TCE, DCE and VC) in ...


    By Regenesis

  • Pesticide pollution slow to reach groundwater

    Underground water aquifers are a significant source of drinking water. In a recent study, French researchers found that pesticides applied to crops can take many years to sink down through the ground and reach groundwater. This means that they may still be entering aquifers, even after agricultural application has stopped. Groundwater is found underground in absorbent layers of rock. ...

  • USGS Groundwater Model: New Tool for Communities in Northern and Central Arizona

    A new groundwater model of the interconnected aquifers in central and northern Arizona was released today by the U.S. Geological Survey, following a multi-year development effort that involved the Arizona Department of Water Resources and regional cooperators.  The computer model, known as the “Northern Arizona Regional Groundwater-Flow Model,” simulates how recharge from ...

  • Study: A third of global groundwater basins are overstressed

    Satellite data show people are overdrawing water from some of the world's largest groundwater basins. Researchers from the University of California, Irvine say it's unclear how much water is left in the most overburdened aquifers. The problem is expected to worsen with climate change and population growth. Using measurements taken by NASA's twin Grace satellites, scientists found the most ...


    By Associated Press

  • Africa may struggle to extract groundwater, experts say

    Vast groundwater resources have been revealed in Africa by the first continent-wide quantitative maps. But the resources may not be easily accessible because of political and technical challenges and costs, say experts. The new groundwater maps, published last month (19 April) in Environmental Research Letters, are based on an extensive review of available maps, publications and data. They show ...


    By SciDev.Net

  • Groundwater Discharge to Upper Colorado River Basin Varies in Response to Drought

    Groundwater discharge that flows into the Upper Colorado River Basin varies in response to drought, which is likely due to aquifer systems that contain relatively young groundwater, according to a new U.S. Geological Survey study published in Hydrogeology Journal. The Colorado River and its tributaries provide water to more than 40 ...

  • 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

  • Developing Bioaugmentation Cultures for Chloroethene Remediation in Low pH Aquifers

    One of the major limitations for bioremediation of chlorinated ethenes in aquifers with a pH of approximately 6 and below is the perceived need to adjust the pH to the circumneutral range. This is based on numerous studies with Dehalococcoides and mixed cultures containing Dehalococcoides that indicate a steep reduction or cessation in cDCE and VC reduction to ethene at pH levels below 6. ...


    By EOS Remediation, LLC

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