Simulation of Ground-Water Flow in Aquifers in Cretaceous Rocks in the Central Coastal Plain, North Carolina

摘要

The principal sources of water-supply in Cretaceous rocks in the central Coastal Plain of North Carolins are the Peedee, Black Creek, and upper Cape Fear aquifers. Ground-water withdrawals from these aquifers have increased from about 0.25 million gallons per day in 1910 to over 29 million gallons per day in 1986, causing water-level declines as much as 160 feet. The maximum rate of water-level decline in 1986 is about 11 feet per year in the Black Creek aquifer. The report describes the design, calibration process, and results of a ground-water flow model for the central Coastal Plain water-supply aquifers and demonstrates the application of this model to the management of ground-water resources by simulating effects of two withdrawal scenarios through the year 1991.