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Prepared in cooperation with the Louisiana Department of Transportation and Development, Public Works and Water Resources Division, Water Resources Section

Louisiana Ground-Water Map No. 13

Hydrogeology and Potentiometric Surface of the Sparta Aquifer in Northern Louisiana, October 1996

By Jeffrey A. Brantly, Ronald C. Seanor, and Kaycee L. McCoy

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.

First posted May 4, 2010 Report PDF (1.8 MB) For additional information contact: Director, Louisiana Water Science Center U.S. Geological Survey 3535 South Sherwood Forest Blvd. Suite 120 Baton Rouge, LA 70816 http://la.water.usgs.gov/ Part or all of this report is presented in Portable Document Format (PDF); the latest version of Adobe Reader or similar software is required to view it. Download the latest version of Adobe Reader, free of charge.

Suggested citation:

Brantly, J.A., Seanor, R.C., McCoy, K.L., 2002, Hydrogeology and potentiometric surface of the Sparta aquifer in northern Louisiana, October 1996: U.S. Geological Survey Water-Resources Investigations Report 02-4053, 3 sheets.