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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 (2) Types Downloadable (2) GeoTIFF (2) Map Service (2) OGC WFS Layer (2) OGC WMS Layer (2) Raster (2) Shapefile (2) Contacts Drew A. Westerman Samantha R Wacaster Samantha R. Wacaster U.S. Geological Survey U.S. Geological Survey - ScienceBase GS ScienceBase U.S. Geological Survey, SOUTHEAST REGION Categories Data (2) Tag Types Place (2) Theme (2) Tag Schemes None (2) View Results as: JSON ATOM CSV

Digitized Contour from Georeferenced Plate 2005 from "Status of Water Levels and Selected Water-Quality Conditions in the Sparta-Memphis Aquifer in Arkansas and the Status of Water Levels in the Sparta Aquifer in Louisiana, Spring 2005" (Schrader and Jones, 2007; version 1.1, April 2021) The U.S. Geological Survey in cooperation with the Arkansas Natural Resources Commission, the Arkansas Geological Commission, and the Louisiana Department of Transportation and Development has monitored water levels in the Sparta Sand of Claiborne Group and Memphis Sand of Claiborne Group since the 1920's. Ground-water withdrawals have increased while water levels have declined since monitoring was initiated. This report has been produced to describe ground-water levels in the aquifers in the Sparta Sand and Memphis Sand and provide information for the management of this valuable resource. The 2005 potentiometric-surface map of the aquifers in the Sparta Sand and Memphis Sand was constructed using water-level data... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, OGC WFS Layer, OGC WMS Layer, Raster, Shapefile; Tags: Arkansas, Cane River Formation, Claiborne Group, Louisiana, Mississippi Embayment, All tags... Sabine Uplift, Sparta Sand, Sparta-Memphis Aquifer, cone of depression, downdip, freshwater, groundwater flow, outcrop, potentiometric surface, spring 2005, zone of transition, Fewer tags Digitized Contour from Georeferenced Plate 2012 from "Potentiometric Surface, 2012, and Water-Level Differences, 2005-2012, of the Sparta Aquifer in North-Central Louisiana" The Sparta aquifer is used in 15 parishes in north-central Louisiana, primarily for public supply and industrial purposes. Of those parishes, eight (Bienville, Claiborne, Jackson, Lincoln, Ouachita, Union, Webster, and Winn) rely on the Sparta aquifer as their principal source of groundwater. In 2010, withdrawals from the Sparta aquifer in Louisiana totaled 63.11 million gallons per day (Mgal/d), a reduction of more than 11 percent from 1995, when the highest rate of withdrawals (71.32 Mgal/d) from the Sparta aquifer were documented. The Sparta aquifer provides water for a variety of purposes which include public supply (34.61 Mgal/d), industrial (25.60 Mgal/d), rural domestic (1.50 Mgal/d), and various agricultural... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, OGC WFS Layer, OGC WMS Layer, Raster, Shapefile; Tags: Bienville Parish, Bossier Parish, Caddo Parish, Caldwell Parish, Claiborne Parish, All tags... De Soto Parish, Jackson Parish, Lincoln Parish, Louisiana, March-April 2012, Morehouse Parish, Natchitoches Parish, Ouachita Parish, Red River Parish, Richland Parish, Sabine Parish, Sparta Aquifer, Union Parish, Webster Parish, Winn Parish, control point and well number, freshwater extent, outcrop, potentiometric surface, water level differences, Fewer tags