Research Catalog

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  • Evaluation of methods for delineating areas that contribute water to wells completed in valley-fill aquifers in Pennsylvania [microform] / by Dennis W. Risser and Thomas M. Madden, Jr. ; prepared in cooperation with the Pennsylvania Department of Environmental Resources, Bureau of Community Environmental Control.

    • Text
    • Lemoyne, Pa. : U.S. Dept. of the Interior, U.S. Geological Survey ; Denver, CO : Earth Science Information Center, Open-File Reports Section [distributor], 1994.
    • 1994

  • Comparison of methods for estimating ground-water recharge and base flow at a small watershed underlain by fractured bedrock in the eastern United States / by Dennis W. Risser, and William J. Gburek, and Gordon J. Folmar ; in cooperation with the U.S. Department of Agriculture, Agricultural Research Service.

    • Text
    • Reston, Va. : U.S. Dept. of the Interior, U.S. Geological Survey, 2005.
    • 2005
    • 1 Resource

    Available Online

    https://purl.fdlp.gov/GPO/LPS102058

  • Groundwater quality and simulation of sources of water to wells in the Marsh Creek Valley at the U.S. Geological Survey Northern Appalachian Research Laboratory, Tioga County, Pennsylvania / by Dennis W. Risser and Kevin J. Breen.

    • Text
    • Reston, Va. : U.S. Dept. of the Interior, U.S. Geological Survey, 2012.
    • 2012
    • 1 Resource

    Available Online

    https://purl.fdlp.gov/GPO/gpo30439

  • Factors affecting specific-capacity tests and their application--a study of six low-yielding wells in fractured-bedrock aquifers in Pennsylvania / by Dennis W. Risser.

    • Text
    • Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2010.
    • 2010
    • 1 Resource

    Available Online

    https://purl.fdlp.gov/GPO/gpo171712

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