1. Altitude and configuration of the potentiometric surface in the crystalline and metasedimentary rocks, northeastern Chester County, Pennsylvania, May through October 1990 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: [Lemoyne, Pa.] : U.S. Department of the Interior, U.S. Geological Survey, 1992 Resource Type: Map Access & Availability: Loading
2. Altitude and configuration of the water-level surface in lower Paleozoic and Precambrian crystalline rocks in the Red Clay Creek Basin, Chester County, Pennsylvania, and New Castle County, Delaware, June through October 1989 and March 1990 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Harrisburg, Pennsylvania : United States Department of the Interior, U.S. Geological Survey, 1991 Resource Type: Map Access & Availability: Loading
3. Altitude and configuration of the potentiometric surface in the Triassic sandstones and shales, northern Chester County, Pennsylvania, October 1989 through March 1990 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Harrisburg, Pennsylvania : Department of the Interior, U.S. Geological Survey, 1990 Resource Type: Map Access & Availability: Loading
4. Altitude and configuration of the potentiometric surface in the Triassic sandstones and shales, northeastern Chester County, Pennsylvania, September 1987 through January 1988 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Reston, Virginia : Department of the Interior, U.S. Geological Survey, 1989 Resource Type: Map Access & Availability: Loading
5. Ground-water levels in the lower Paleozoic and Precambrian crystalline rocks, of East Bradford and West Bradford townships, Chester County, Pennsylvania, July and August 1987 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: [Reston, Va.] : Department of the Interior, U.S. Geological Survey, 1988 Resource Type: Map Access & Availability: Loading
6. Ground-water levels in the lower Paleozoic and Precambrian crystalline rocks, southeastern Chester County, Pennsylvania, July and August 1986 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: [Reston, Va.] : United States Department of the Interior, Geological Survey, 1987 Resource Type: Map Access & Availability: Loading
7. Ground-water levels in the Cockeysville marble of southern Chester County, Pennsylvania, 1983-84 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Reston, Virginia : United States Department of the Interior, Geological Survey, 1985 Resource Type: Map Access & Availability: Loading
8. 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