USGS Southeastern Coastal Plain Project
Coastal Plain Drilling Program - Spring 1999
A corehole was drilled during March-April, 1999 at Edisto Island, South Carolina in cooperation with the South Carolina Department of Natural Resources. The corehole was drilled to a total depth of 977 ft before it was terminated due to mechanical problems. The hole bottomed in middle Paleocene sediments. An attempt to drill a second corehole at the site in order to reach the top of Cretaceous sediments was unsuccessful. Geophysical logs were run in the hole by the Georgia District of the USGS Water Resources Division.
A Science Fair for elementary and high-school students was held at the Edisto Beach drill site on March 30th. This Fair was the sixth in a series of educational outreach events conducted at the project's South Carolina drill sites in cooperation with the South Carolina Department of Natural Resources.
Coastal Plain Drilling Program - Fall 1998
Two new coreholes were drilled in Aiken County, South Carolina during September, 1998, in cooperation with the South Carolina District of the USGS Water Resources Division and the Breezy Hill Water Management District. A 340-ft-deep corehole drilled at Breezy Hill encountered 313 ft of Cretaceous and Tertiary strata and bottomed in granite. A 170-ft-deep corehole drilled at Sage Mill went through 121.5 ft of Cretaceous and Tertiary strata and also bottomed in granite. Monitoring wells were established in both test holes.
Coastal Plain Drilling Program - Spring 1998
The most recent of the project's hydrogeologic test holes was drilled at St. Stephen in Berkeley County, South Carolina, during April, May, and June, 1998. The continuously cored hole reached a total depth of 1,824 ft and penetrated Paleocene, Cretaceous, and pre-Cretaceous stratigraphic units. A monitoring well is being installed in a shallow sand-carbonate aquifer. The St. Stephen test hole is a cooperative effort of the South Carolina Department of Natural Resources, the Santee Cooper Public Service Authority, the Water Resources Division of the USGS, and this project. The new corehole is located at the St. Stephen Middle School where the latest in a series of Science Fairs was held for the students and faculty during May by the Department of Natural Resources, Santee Cooper, and this project.
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