1. Evaluation of hydrologic data collected at the North Penn area 12 Superfund Site, Montgomery County, Pennsylvania Author/Creator: Senior, Lisa A., author Publication/Creation: Lemoyne, Pennsylvania : U.S. Department of the Interior, U.S. Geological Survey, 1998 Resource Type: Book Access & Availability: Loading
2. Relation of ground-water quality to land use in the Philadelphia, Pennsylvania--Camden, New Jersey area Author/Creator: Blickwedel, Roy S., author Publication/Creation: Harrisburg, Pennsylvania : U.S. Geological Survey, 1989 Resource Type: Book Access & Availability: Loading
3. Water resources of Oley Township, Berks County, Pennsylvania Author/Creator: Paulachok, Gary N., author Publication/Creation: Harrisburg, Pennsylvania : U.S. Geological Survey, 1988 Resource Type: Book Access & Availability: Loading
4. Ground-water levels in the Lower Paleozoic carbonate rocks of western Chester Valley, Chester County, Pennsylvania, November 1984 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: [Reston, Va.] : United States Department of the Interior, Geological Survey, 1985 Resource Type: Map Access & Availability: Loading