The Oligocene aquifer system in Mississippi

Water-Resources Investigations Report 79-28



The Oligocene aquifer system in Mississippi consists of limestone and marl members of the Vicksburg Group, and the underlying Forest Hill Sand. The aquifer system crops out in a band 5 to 10 miles wide, that trends southeast across the State from the Warren-Yazoo County line to northeastern Wayne County. In the northwest part of the area, the formations dip to the southwest at 12 feet per mile. At the southeastern end of the outcrop, the dip is 42 feet per mile. The average dip for the entire area is 30 feet per mile. The aquifers are of primary importance for domestic and farm use. Total withdrawal in 1977 was about 1.4 million gallons per day. Since 1963 water levels have declined an average of between 0.05 and 2 feet per year. Water quality is generally good although in some places there are objectionably high concentrations of iron and color. (Woodard-USGS)

Additional publication details

Publication type Report
Publication Subtype USGS Numbered Series
Title The Oligocene aquifer system in Mississippi
Series title Water-Resources Investigations Report
Series number 79-28
DOI 10.3133/wri7928
Year Published 1979
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Description 2 Plates: 32.25 x 41.03 inches and 41.88 x 32.04 inches
Country United States
State Mississippi
Other Geospatial Oligocene aquifer system
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