Altitude and configuration of the potentiometric surface in the Triassic sandstones and shales, northeastern Chester County, Pennsylvania, September 1987 through January 1988
Reston, Virginia : Department of the Interior, U.S. Geological Survey, 1989
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Altitude and configuration of the potentiometric surface in the Triassic sandstones and shales, northeastern Chester County, Pennsylvania, September 1987 through January 1988 / by Lisa A. Senior and John A. Garges
Title from title screen (viewed Feb. 4, 2016). Also available online in PDF format from the U.S. Geological Survey Warehouse (http://pubs.er.usgs.gov/). "Contour interval 10 feet." Blue line printing. Includes location map. Relief shown by contours and spot heights. "Prepared in cooperation with the Chester County Water Resources Authority."