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Structure Contours from Top of Sparta Aquifer from Figure 2, 1996, from Hydrogeology and Potentiometric Surface of the Sparta Aquifer in Northern Louisiana, October 1996 (Brantly, Seanor, and McCoy, 2002) This report describes the thickness and areal extent of the Sparta aquifer, identifies sands within the fresh-water extent of the aquifer, and presents data and a map that illustrate the generalized potentiometric surface (water levels) during October 1996. The report includes a detailed geophysical log, structure contour maps, hydrogeologic sections, and hydrographs of water levels in selected wells. The potentiometric surface-map can be used for determining direction of ground-water flow, hydraulic gradients, and the effects of withdrawals on the aquifer. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Louisiana, Mississippi Embayment, Sparta aquifer, altitude, downdip limit, All tags... groundwater, structure contour, western extent, Fewer tags Structure Contours from Bottom of Sparta Aquifer from Figure 3, 1996, from Hydrogeology and Potentiometric Surface of the Sparta Aquifer in Northern Louisiana, October 1996 (Brantly, Seanor, and McCoy, 2002) This report describes the thickness and areal extent of the Sparta aquifer, identifies sands within the fresh-water extent of the aquifer, and presents data and a map that illustrate the generalized potentiometric surface (water levels) during October 1996. The report includes a detailed geophysical log, structure contour maps, hydrogeologic sections, and hydrographs of water levels in selected wells. The potentiometric surface-map can be used for determining direction of ground-water flow, hydraulic gradients, and the effects of withdrawals on the aquifer. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Louisiana, Mississippi Embayment, Sparta aquifer, altitude, downdip limit, All tags... groundwater, structure contour, western extent, Fewer tags Data used to describe hydrogeologic units and create contour maps and cross sections of the Boone and Roubidoux Aquifers, northeastern Oklahoma The Ozark Plateau aquifer system stretches across approximately 70,000 square miles (mi2) of Arkansas, Missouri, Kansas and Oklahoma, and is composed of many hydrogeologic units, such as the Boone aquifer and the Roubidoux aquifer. However, this data release is focused on only 11,000 mi2 in northern Arkansas, southeastern Kansas, southwestern Missouri, and northeastern Oklahoma. The Boone aquifer covers approximately 10,700 mi2 of this area, and the Roubidoux aquifer covers the 11,000 mi2 area entirely. These aquifers are mostly made of Mississippian-aged and Ordovician-aged carbonate rock, and serve as the main sources of fresh groundwater in northeastern Oklahoma (Imes and Emmett, 1994). In 2017, the U.S. Geological... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, OGC WFS Layer, OGC WMS Layer, Raster, Shapefile; Tags: Arkansas, Boone, Kansas, Missouri, Oklahoma, All tags... Oklahoma, Ozark, Ozark Plateaus aquifer system, Ozarks, Roubidoux, U.S. Geological Survey, USGS Science Data Catalog (SDC), Water Resources, Water Science Center, altitude, aquifer, contouring, digital elevation models, elevation, geoscientificInformation, geospatial datasets, hydrogeologic framework, hydrogeology, inlandWaters, stratigraphic sections, structural geology, Fewer tags