1. Water-quality conditions during low flow in the lower Youghiogheny River basin, Pennsylvania, October 5-7, 1998 Publication/Creation: New Cumberland, Pa. : U.S. Dept. of the Interior, U.S. Geological Survey, 2001 Resource Type: Book Access & Availability: Loading
2. Water-quality assessment of the Lower Susquehanna River Basin, Pennsylvania and Maryland : environmental setting Author/Creator: Risser, Dennis W., author Publication/Creation: Lemoyne, Pennsylvania : U.S. Department of the Interior, U.S. Geological Survey, 1996 Resource Type: Book Access & Availability: Loading
3. Water quality of large discharges from mines in the anthracite region of eastern Pennsylvania Author/Creator: Wood, Charles R., author Publication/Creation: Lemoyne, Pennsylvania : U.S. Geological Survey, 1996 Resource Type: Book Access & Availability: Loading
4. Surface-water quality changes after 5 years of nutrient management in the Little Conestoga Creek headwaters, Pennsylvania, 1989-91 Author/Creator: Koerkle, Edward H., author Publication/Creation: Lemoyne, Pennsylvania : U.S. Geological Survey, 1997 Resource Type: Book Access & Availability: Loading
5. Simulation of streamflow and water quality in the Christina River subbasin and overview of simulations in other subbasins of the Christina River basin, Pennsylvania, Maryland, and Delaware, 1994-98 Author/Creator: Senior, Lisa A. Publication/Creation: New Cumberland, Pa. : U.S. Dept. of the Interior, U.S. Geological Survey, 2003 Resource Type: Book Access & Availability: Loading
6. Preimpoundment hydrologic conditions in the Swatara Creek (1981-84) and estimated postimpoundment water quality in and downstream from the planned Swatara State Park Reservoir, Lebanon and Schuylkill counties, Pennsylvania Author/Creator: Fishel, David K., author Publication/Creation: Harrisburg, Pennsylvania : U.S. Geological Survey, 1988 Resource Type: Book Access & Availability: Loading
7. Evaluation of agricultural best-management practices in the Conestoga River Headwaters, Pennsylvania : description and water quality of the Little Conestoga Creek Headwaters prior to the implementation of nutrient management Author/Creator: Fishel, David K., author Publication/Creation: Lemoyne, Pennsylvania : U.S. Geological Survey, 1992 Resource Type: Book Access & Availability: Loading
8. Evaluation of agricultural best-management practices in the Conestoga River headwaters, Pennsylvania : characterization of surface-runoff and ground-water quantity and quality in a small carbonate basin near Churchtown, Pennsylvania, prior to terracing and implementation of nutrient management Author/Creator: Lietman, Patricia L., author Publication/Creation: Lemoyne, Pennsylvania : U.S. Geological Survey, 1996 Resource Type: Book Access & Availability: Loading