Density dependant water flow and contaminant transport

Related news

• USGS Releases First Tool Since 1980s Assessing Water Availability in Northern High Plains Aquifer

  Dec. 14, 2016

  A new U.S. Geological Survey publication and model can be applied by multiple entities to better understand flow, quantity, sources and sinks of groundwater in the Northern High Plains Aquifer, which covers approximately 100,000 square miles across Nebraska, South Dakota, Kansas, Colorado and Wyoming. “An assessment like this has not been done since the USGS High Plains Regional Aquifer-System Analysis (RASA) study completed in the 1980s, so this effort represents a substantial update of the technology...

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

  May 17, 2016

  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 Abandoned Wells,” it states fluids related to hydraulic fracturing escaping to aquifers could lead to upward leakage...

• Idaho aquifer decline could hinder radioactive monitoring

  Jun. 29, 2015

  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 two wells and about a dozen others are in danger due to ongoing drought. "We`re starting to have some concern that some of them could go dry," said Geological Survey...

• Technical Announcement: Bacteria No Match for Deep Floridan Aquifer

  Mar. 11, 2014

  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 than was previously known, though a small percentage survives. One of the state`s regulatory criteria for ensuring the quality of recharged water is whether it contains coliform bacteria. Aquifer storage and recovery...

• High resolution multi-level monitoring for bedrock aquifers

  Mar. 9, 2011

  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 volatile organics (e.g. TCE and degradation products) in rock core was applied. Rock core contaminant analyses at this site,...