TY - RPRT TI - Altitude and configuration of the potentiometric surface in the crystalline and metasedimentary rocks in East Brandywine, Upper Uwchlan and Uwchlan townships and parts of Caln, East Caln, and West Whiteland townships, Chester County, Pennsylvania, April 1993 through June 1994 AU - Stephen S. Aichele AU - C. R. Wood PY - 1996 DO - 10.3133/ofr96338 UR - https://pubs.usgs.gov/publication/ofr96338 ID - ofr96338 ER -