TY - RPRT TI - Ground-water quality and its relation to hydrogeology, land use, and surface-water quality in the Red Clay Creek basin, Piedmont Physiographic Province, Pennsylvania and Delaware AU - Lisa A. Senior PY - 1996 DO - 10.3133/wri964288 UR - https://pubs.usgs.gov/publication/wri964288 ID - wri964288 ER -