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Lower Mississippi-Gulf Water Science Center -- Louisiana

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Ascension Parish

Abstract

Ascension Parish, located along the banks of the Mississippi River in south-central Louisiana, contains fresh groundwater and surface-water resources. In 2005, about 202 million gallons per day (Mgal/d) were withdrawn from water sources in Ascension Parish. About 94 percent (190 Mgal/d) was withdrawn from surface water, and 6 percent (12 Mgal/d) was withdrawn from groundwater. Additional water is supplied to Ascension Parish for public-supply use from East Baton Rouge Parish. Withdrawals for industrial use accounted for 95 percent (192 Mgal/d) of the total water withdrawn. Withdrawals for other uses included public-supply (4 Mgal/d), rural-domestic (3 Mgal/d), and aquaculture (3 Mgal/d). Water withdrawals in the parish generally increased from 1960 to 1995 and decreased from 1995 to 2005. This fact sheet summarizes basic information on the water resources of Ascension Parish, La. Information on groundwater and surface-water availability, quality, development, use, and trends is based on previously published reports listed in the references section.

Fact Sheet

Water Resources of Ascension Parish, Louisiana

References

Cardwell, G.T., and Rollo, J.R., 1960, Interim report on groundwater conditions between Baton Rouge and New Orleans, Louisiana: Department of Conservation, Louisiana Geological Survey, and Louisiana Department of Public Works Water Resources Pamphlet no. 9, 44 p.

Dial, D.C., and Kilburn, Chabot, 1980, Ground-water resources of the Gramercy area, Louisiana: Louisiana Department of Transportation and Development, Office of Public Works Water Resources Technical Report no. 24, 39 p.

Long, R.A., 1965, Ground water in the Geismar-Gonzales area, Ascension Parish, Louisiana: Department of Conservation, Louisiana Geological Survey, and Louisiana Department of Public Works Water Resources Bulletin no. 7, 67 p.

Sargent, B.P., 2007, Water use in Louisiana, 2005: Louisiana Department of Transportation and Development Water Resources Special Report no. 16, 133 p.

Tomaszewski, D.J., 2003, Ground-water resources along the lower Mississippi River, southeastern Louisiana: Louisiana Department of Transportation and Development Water Resources Technical Report no. 69, 23 p.

U.S. Environmental Protection Agency, 1992, Secondary drinking water regulations—guidance for nuisance chemicals: U.S. Environmental Protection Agency publication EPA 810/K- 92-001, 4 p.

U.S. Environmental Protection Agency, 2006, 2006 Edition of the drinking water standards and health advisories: Washington D.C., U.S. Environmental Protection Agency, Office of Water, 12 p.

U.S. Geological Survey, 2008a, Ground-water levels for Louisiana: U.S. Geological Survey digital dataset

U.S. Geological Survey, 2008b, Water-quality samples for Louisiana: U.S. Geological Survey digital dataset

U.S. Geological Survey, 2008c, StreamStats: U.S. Geological Survey digital dataset

Wells, F.C., 1980, Hydrology and water quality of the lower Mississippi River: Louisiana Department of Transportation and Development, Office of Public Works Water Resources Technical Report no. 21, 83 p.

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