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Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Extensions Shapefile (3) Types Map Service (4) OGC WFS Layer (4) Downloadable (3) Shapefile (3) Citation (2) OGC WMS Service (1) Contacts Jaime A Painter Brian R Clark Jonathan A Gillip Phillip D Hays Samantha R Wacaster More... Categories Data (3) Data Release - Revised (1) Tag Types Theme (4) Place (4) Harvest Set (2) Tag Schemes None (3) Common geographic areas (1) Ozarks (2) USGS Thesaurus (1) View Results as: JSON ATOM CSV

Digitized Maps of the Potentiometric Surface of the Sparta Aquifer in North-Central Louisiana, 1886 to 2012 (ver. 1.1, April 2021) The Sparta aquifer is a primary source of groundwater in north-central Louisiana with more than 60 million gallons of water per day being withdrawn in 2015, and public supply and Industry account for over 90 percent of the water-use demand from the Sparta aquifer (Collier, 2018). Concentrated withdrawals from the Sparta aquifer have caused regional water-level declines within the Sparta aquifer (McGee and Brantly, 2015). Widespread concern about the potential effects of declining water levels has brought forth many questions regarding the sustainability of the aquifer as well as continued saltwater intrusion. In cooperation with the Louisiana Department of Transportation and Development, the U.S. Geological Survey... Categories: Data Release - Revised; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Arkansas, Kentucky, Louisiana, Memphis aquifer, Mississippi, All tags... Mississippi Embayment, Missouri, Sparta Aquifer, Sparta Sand, Tennessee, USGS Science Data Catalog (SDC), freshwater extent, groundwater, potentiometric surface, volume change, water-level, Fewer tags Borehole Locations and Altitudes for each of the Hydrogeologic Units of the Ozark Plateaus Aquifer System A hydrogeologic framework of the Ozark Plateaus aquifer system was constructed as the base for a groundwater flow model developed as part of the U.S. Geological Survey Water Availability and Use Science Program to aid in the understanding of groundwater availability in select aquifer systems of the United States. The Ozark Plateaus aquifer system study area (hereinafter referred to as the “Ozark system”) is nearly 70,000 square miles and includes parts of Arkansas, Kansas, Missouri, and Oklahoma. A hydrogeologic framework was constructed to represent the altitudes and thicknesses of nine hydrogeologic units within the Ozark Plateaus aquifer system - . the Western Interior Plains confining system, Springfield Plateau... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arkansas, Arkansas, Kansas, Kansas, Lower Mississippi-Gulf, All tags... Missouri, Missouri, Oklahoma, Oklahoma, Ozark Mountains, Ozark Plateaus, Ozark Plateaus aquifer system, U.S. Geological Survey, USGS, Water Availability and Use Science Program, Water Science Center, aquifer, borehole data, confining unit, framework, groundwater, groundwater availability, groundwater availability project, groundwater modeling, hydrogeologic framework, hydrogeologic modeling, hydrogeology, surficial aquifer, Fewer tags Mississippi Alluvial Plain Extent, November 2017 The Mississippi Alluvial Plain (MAP) has become one of the most important agricultural regions in the US, and it relies heavily on a groundwater system that is poorly understood and shows signs of substantial change. The heavy use of the available groundwater resources has resulted in significant groundwater-level declines and reductions in base flow in streams within the MAP. These impacts are limiting well production and threatening future water-availability for the region. This product will help not only scientists in our center, but also at a national level. This product will also be part of a larger study encompassing the Mississippi Alluvial Plain region. The Mississippi Alluvial Plain extent was delineated... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arkansas, Arkansas River, Illinois, Kentucky, LMG, All tags... Louisiana, Lower Mississippi-Gulf Water Science, MAP, MAP, Mississippi, Mississippi Alluvial Plain, Mississippi Alluvial Plain, Mississippi River, Mississippi River Delta, Mississippi Valley, Missouri, Tennessee, U.S. Geological Survey, U.S.Geological Survey, USGS, USGS Science Data Catalog (SDC), Water Availability and Use Science Program, aquifer system, groundwater availability project, groundwater modeling, hydrogeology, water availability project, Fewer tags Extents for each of the Hydrogeologic Units of the Ozark Plateaus Aquifer System A hydrogeologic framework of the Ozark Plateaus aquifer system was constructed as the base for a groundwater flow model developed as part of the U.S. Geological Survey Water Availability and Use Science Program to aid in the understanding of groundwater availability in select aquifer systems of the United States. The Ozark Plateaus aquifer system study area (hereinafter referred to as the “Ozark system”) is nearly 70,000 square miles and includes parts of Arkansas, Kansas, Missouri, and Oklahoma. A hydrogeologic framework was constructed to represent the altitudes and thicknesses of nine hydrogeologic units within the Ozark Plateaus aquifer system - . the Western Interior Plains confining system, Springfield Plateau... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arkansas, Arkansas, Kansas, Kansas, Lower Mississippi-Gulf, All tags... Missouri, Missouri, Oklahoma, Oklahoma, Ozark Mountains, Ozark Plateaus, Ozark Plateaus aquifer system, U.S. Geological Survey, USGS, Water Availability and Use Science Program, Water Science Center, aquifer, confining unit, extents, framework, groundwater, groundwater availability, groundwater availability project, groundwater modeling, hydrogeologic framework, hydrogeologic modeling, hydrogeology, polygons, surficial aquifer, Fewer tags