1. Altitude and configuration of the potentiometric surface in the upper White Clay Creek and lower West Branch Brandywine Creek basins including portions of Penn, London Grove, New Garden, Londonderry, West Marlborough, Highland, and East Fallowfield Townships and West Grove, Avondale, Modena, and South Coatesville Boroughs, Chester County, Pennsylvania, May through July 2006 Author/Creator: Hale, Lindsay B. Publication/Creation: [Reston, Va.?] : U.S. Geological Survey, 2007 Format: Map Access & Availability: Loading
2. Altitude and configuration of the potentiometric surface in the lower White Clay Creek and upper Christina River basins including portions of Franklin, London Britain, New Garden, and New London Townships, County, Pennsylvania, June through September 2005 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: [Reston, Va.] : Department of the Interior, U.S. Geological Survey, 2006 Format: Map Access & Availability: Loading
3. Altitude and configuration of the potentiometric surface in part of Lower Oxford, East Nottingham, and West Nottingham Townships, and in part of the Borough of Oxford, Chester County, Pennsylvania, April through June, 2003 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Reston, Va. : U.S. Department of the Interior, U.S. Geological Survey, 2005 Format: Map Access & Availability: Loading
4. 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 Format: Map Access & Availability: Loading
5. 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 Format: Map Access & Availability: Loading
6. 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 Format: Map Access & Availability: Loading
7. 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 Format: Map Access & Availability: Loading
8. 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 Format: Map Access & Availability: Loading
9. 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 Format: Map Access & Availability: Loading
10. 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 Format: Map Access & Availability: Loading