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Generalized potentiometric surface of aquifers of Pleistocene age, Southern Louisiana, 1980

Water-Resources Investigations Report 84-4331
By:  and 
https://doi.org/10.3133/wri844331

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Abstract

A map of potentiometric surface defines generalized water levels for 1980 in the Pleistocene aquifers of southern Louisiana. The map was prepared as part of the Western Gulf Coast Regional Aquifer-System Analysis study. The Pleistocene deposits in southern Louisiana consist of alternating beds of sand, gravel, silt, and clay deposited under fluvial, deltaic, and near-short marine conditions. The aquifers are mainly under artesian conditions and the regional flow direction is primarily southward. Areally definable cones of depression result from heavy pumpage in the Baton Rouge, Lake Charles, and New Orleans metropolitan areas and in the rice irrigation area of southwestern Louisiana. Where water levels differ vertically within the aquifer, the lowest water levels in the vertical section were used because these levels represented the thickest and most heavily pumped unit in the aquifer. The map represents regional water levels in the Pleistocene aquifers, and is not intended to show localized variations near pumping centers. (USGS)

Suggested Citation

Martin, A., Whiteman, C.D., 1985, Generalized potentiometric surface of aquifers of Pleistocene age, Southern Louisiana, 1980: U.S. Geological Survey Water-Resources Investigations Report 84-4331, 1 map : col. ; 56 x 101 cm., on sheet 74 x 107 cm., folded in envelope 31 x 23 cm., https://doi.org/10.3133/wri844331.

Publication type Report
Publication Subtype USGS Numbered Series
Title Generalized potentiometric surface of aquifers of Pleistocene age, Southern Louisiana, 1980
Series title Water-Resources Investigations Report
Series number 84-4331
DOI 10.3133/wri844331
Year Published 1985
Language ENGLISH
Description 1 map : col. ; 56 x 101 cm., on sheet 74 x 107 cm., folded in envelope 31 x 23 cm.
Additional publication details