Hydrology - Water Resources Report 39

Ground-Water Resources of Hampton County, South Carolina

by
Roy Newcome, Jr. and Joseph A. Gellici
2006

ABSTRACT

Hampton County, near the southern extremity of South Carolina, is in the fortunate position of having three rivers bounding or crossing the county. It is fortunate, also, in having one of the region's best aquifers within 500 feet of the land surface and additional prolific aquifers in the next 1,500 feet.

The Floridan aquifer, a limestone of mainly Eocene age, supplies numerous farm-irrigation systems, public water supplies, and several industries with water of very good quality. Many wells yield 1,000 gallons per minute or more. Aquifer transmissivity is sufficiently high that wells a few hundred feet deep do not unduly interfere with one another. Shallow wells with little available drawdown are sometimes affected by nearby pumping from irrigation wells.

Wells 800-900 feet deep tap sand aquifers in the Paleocene-age Black Mingo Formation and Cretaceous-age Peedee Formation. With their great available drawdown, these wells commonly exceed 1,000-1,500 gallons per minute in yield; one industrial well produced 3,000 gpm. The water from these wells is considerably softer than that from the limestone wells.

Untapped sand aquifers in the Cretaceous-age Black Creek and Middendorf Formations could be exploited by wells as deep as 2,000 feet. The temperature of ground water from that depth is as high as 100° Fahrenheit, but geophysical logs of wells in counties to the north and south of Hampton County indicate freshwater at that depth.


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