Tertiary aquifers in the Mississippi embayment, with discussions of quality of the water

Abstract

The aquifers of Tertiary age contain water having less than 1,000 parts per million dissolved solids in an area of about 75,000 square miles and are used as sources of water supply in almost all this area. The total withdrawal from Tertiary aquifers is about 500 million gallons per day. In much of the area, two or more Tertiary aquifers are available for development, although generally only the shallowest aquifer is used. Most of the Tertiary aquifers are areally extensive, and some contain fresh water at depths in excess of 2,000 feet.