TY - RPRT TI - Altitude and configuration of the potentiometric surface, December 6, 1994, in the carbonate rocks in part of East Whiteland and Charlestown townships, Chester County, Pennsylvania AU - B. C. McManus AU - R. A. Sloto PY - 1996 DO - 10.3133/ofr96367 UR - https://pubs.usgs.gov/publication/ofr96367 ID - ofr96367 ER -