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Water availability and geology of Sumter County, Alabama

Open-File Report 75-459

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Abstract

Geologic units that crop out in Sumter County include the Selma Group of Late Cretaceous age; the Midway and Wilcox Groups of Tertiary Age; and terrace deposits and alluvium of Quaternary age. The Tuscaloosa Group, consisting of the Coker and Gordo Formations, and Eutaw Formation of Late Cretaceous age underlie the entire county. The Cretaceous units dip southwestward about 45 feet per mile and strike northwestward. They consist chiefly of deposits of sand, gravel, chalk, and clay. Potential sources of large supplies of ground water are major aquifers in the Coker, Gordo, and Eutaw Formations; expected yields are 1.6 mgd (million gallons per day or more per well. The Naheola and Nanafalia formations, Tuscahome Sand, and terrace deposits and alluvium are expected to yield 10 to 50 gallons per minute per well.

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Water availability and geology of Sumter County, Alabama
Series title:
Open-File Report
Series number:
75-459
Edition:
-
Year Published:
1975
Language:
ENGLISH
Publisher:
U.S. Geological Survey,
Description:
48 leaves :ill. (some col.), maps (some folded, col.) ;29 cm.; (193 p. - PGS)