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Water quality biological assessment -- Pennsylvania -- Schuylkill River Watershed

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Filed under: Water quality biological assessment -- Pennsylvania -- Schuylkill River Watershed

Assessment of stream quality using biological indices at selected sites in the Schuylkill River basin, Chester County, Pennsylvania, 1981-97 (U.S. Geological Survey, 2002), by Andrew G Reif, Chester County Water Resources Authority, and Geological Survey (U.S.) (page images at HathiTrust)

Items below (if any) are from related and broader terms.

Filed under: Water quality biological assessment -- Pennsylvania

Relations of biological indicators to nutrient data for lakes and streams in Pennsylvania and West Virginia, 1990-98 (U.S. Dept. of the Interior, U.S. Geological Survey, 2003), by Robin A. Brightbill, Edward H. Koerkle, United States Environmental Protection Agency, Pennsylvania. Department of Environmental Protection, and Geological Survey (U.S.) (page images at HathiTrust)

Filed under: Water quality biological assessment -- Pennsylvania -- Chester County

Assessment of stream conditions and trends in biological and water-chemistry data from selected streams in Chester County, Pennsylvania, 1981-97 (U.S. Dept. of the Interior, U.S. Geological Survey ;, 2002), by Andrew G. Reif, Chester County Water Resources Authority, and Geological Survey (U.S.) (page images at HathiTrust; US access only)
Assessment of stream quality using biological indices at selected sites in the Red Clay and White Clay Creek basins, Chester County, Pennsylvania, 1981-97 ([U.S. Dept. of the Interior, U.S. Geological Survey], 2002), by Andrew G Reif, Geological Survey (U.S.), and Chester County Water Resources Authority (page images at HathiTrust)
Assessment of stream quality using biological indices at selected sites in the Brandywine Creek basin, Chester County, Pennsylvania, 1981-97 ([U.S. Dept. of the Interior, U.S. Geological Survey], 2002), by Andrew G Reif, Geological Survey (U.S.), and Chester County Water Resources Authority (page images at HathiTrust)
Assessment of stream quality using biological indices at selected sites in the Delaware River basin, Chester County, Pennsylvania, 1981-97 ([U.S. Dept. of the Interior, U.S. Geological Survey], 2002), by Andrew G Reif, Geological Survey (U.S.), and Chester County Water Resources Authority (page images at HathiTrust)
Assessment of stream quality using biological indices at selected sites in the Big Elk and Octoraro Creek basins, Chester County, Pennsylvania, 1981-97 (U.S. Dept. of the Interior, U.S. Geological Survey, 2002), by Andrew G Reif, Geological Survey (U.S.), and Chester County Water Resources Authority (page images at HathiTrust)
Assessment of stream quality using biological indices at selected sites in the Schuylkill River basin, Chester County, Pennsylvania, 1981-97 (U.S. Geological Survey, 2002), by Andrew G Reif, Chester County Water Resources Authority, and Geological Survey (U.S.) (page images at HathiTrust)

Filed under: Water quality biological assessment -- Big Elk Creek Watershed (Pa. and Md.)

Assessment of stream quality using biological indices at selected sites in the Big Elk and Octoraro Creek basins, Chester County, Pennsylvania, 1981-97 (U.S. Dept. of the Interior, U.S. Geological Survey, 2002), by Andrew G Reif, Geological Survey (U.S.), and Chester County Water Resources Authority (page images at HathiTrust)

Filed under: Water quality biological assessment -- Brandywine Creek Watershed (Pa. and Del.)

Assessment of stream quality using biological indices at selected sites in the Brandywine Creek basin, Chester County, Pennsylvania, 1981-97 ([U.S. Dept. of the Interior, U.S. Geological Survey], 2002), by Andrew G Reif, Geological Survey (U.S.), and Chester County Water Resources Authority (page images at HathiTrust)

Filed under: Water quality biological assessment -- White Clay Creek Watershed (Pa. and Del.)

Assessment of stream quality using biological indices at selected sites in the Red Clay and White Clay Creek basins, Chester County, Pennsylvania, 1981-97 ([U.S. Dept. of the Interior, U.S. Geological Survey], 2002), by Andrew G Reif, Geological Survey (U.S.), and Chester County Water Resources Authority (page images at HathiTrust)

Filed under: Pennsylvania -- Schuylkill River Watershed

Simulation of ground-water flow in the lower sand unit of the Potomac-Raritan-Magothy aquifer system, Philadelphia, Pennsylvania (Dept. of the Interior, U.S. Geological Survey ;, 1988), by Ronald A. Sloto, Geological Survey (U.S.), and Philadelphia (Pa.). Water Department (page images at HathiTrust)

Filed under: Dams -- Pennsylvania -- Schuylkill River Watershed

Effects of low-level dams on the distribution of sediment, trace metals, and organic substances in the lower Schuylkill River Basin, Pennsylvania (Dept. of the Interior, U.S. Geological Survey ;, 1985), by Thomas H. Yorke, G. L. Pederson, J. K. Stamer, and Geological Survey (U.S.) (page images at HathiTrust)

Filed under: Groundwater flow -- Pennsylvania -- Schuylkill River Watershed -- Computer simulation

Simulation of ground-water flow in the lower sand unit of the Potomac-Raritan-Magothy aquifer system, Philadelphia, Pennsylvania (Dept. of the Interior, U.S. Geological Survey ;, 1988), by Ronald A. Sloto, Geological Survey (U.S.), and Philadelphia (Pa.). Water Department (page images at HathiTrust)

Filed under: Metals -- Environmental aspects -- Pennsylvania -- Schuylkill River Watershed

Effects of low-level dams on the distribution of sediment, trace metals, and organic substances in the lower Schuylkill River Basin, Pennsylvania (Dept. of the Interior, U.S. Geological Survey ;, 1985), by Thomas H. Yorke, G. L. Pederson, J. K. Stamer, and Geological Survey (U.S.) (page images at HathiTrust)

Filed under: Organic water pollutants -- Pennsylvania -- Schuylkill River Watershed

Effects of low-level dams on the distribution of sediment, trace metals, and organic substances in the lower Schuylkill River Basin, Pennsylvania (Dept. of the Interior, U.S. Geological Survey ;, 1985), by Thomas H. Yorke, G. L. Pederson, J. K. Stamer, and Geological Survey (U.S.) (page images at HathiTrust)

Filed under: Sediment transport -- Pennsylvania -- Schuylkill River Watershed

Distribution and transport of trace substances in the Schuylkill River Basin from Berne to Philadelphia, Pennsylvania (Dept. of the Interior, U.S. Geological Survey, 1985), by J. K. Stamer, G. L. Pederson, Thomas H. Yorke, and Geological Survey (U.S.) (page images at HathiTrust)
Effects of low-level dams on the distribution of sediment, trace metals, and organic substances in the lower Schuylkill River Basin, Pennsylvania (Dept. of the Interior, U.S. Geological Survey ;, 1985), by Thomas H. Yorke, G. L. Pederson, J. K. Stamer, and Geological Survey (U.S.) (page images at HathiTrust)

Filed under: Trace elements in water -- Pennsylvania -- Schuylkill River Watershed

Effects of low-level dams on the distribution of sediment, trace metals, and organic substances in the lower Schuylkill River Basin, Pennsylvania (Dept. of the Interior, U.S. Geological Survey ;, 1985), by Thomas H. Yorke, G. L. Pederson, J. K. Stamer, and Geological Survey (U.S.) (page images at HathiTrust)

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