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  1. 1
    Changes in bottom-surface elevations in three reservoirs on the lower Susquehanna River, Pennsylvania and Maryland, following the January 1996 flood : implications for nutrient and sediment loads to Chesapeake Bay /
    “...U.S. Geological Survey,...”
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    Government Document eBook
  2. 2
    Hydrology and the effects of selected agricultural best-management practices in the Bald Eagle Creek Watershed, York County, Pennsylvania, prior to and during nutrient management : Water-Quality Study for the Chesapeake Bay Program /
    “...U.S. Geological Survey,...”
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  3. 3
    Effects of agricultural best-management practices on the Brush Run Creek headwaters, Adams County, Pennsylvania, prior to and during nutrient management /
    “...U.S. Geological Survey,...”
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  4. 4
    Hydrology and the hypothetical effects of reducing nutrient applications on water quality in the Bald Eagle Creek Headwaters, southeastern Pennsylvania prior to implementation of agricultural best-management practices /
    by Fishel, David K.
    Published 1991
    “...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
    Government Document Book
  5. 5
    Hydrology and the effects of selected agricultural best-management practices in the Bald Eagle Creek Watershed, York County, Pennsylvania, prior to and during nutrient management : Water-Quality Study for the Chesapeake Bay Program.
    by Langland, Michael J.
    Published 1995
    “...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
    Government Document Book
  6. 6
    Nutrient and triazine-herbicide concentrations in streams of the Chickies Creek Basin, south-central Pennsylvania, during low-flow conditions.
    by Langland, Michael J.
    Published 1996
    “...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
    Government Document Book
  7. 7
    Quality of ground water at selected sites in the upper Mahoning Creek Basin, Pennsylvania.
    by Langland, Michael J.
    Published 1996
    “...U.S. Dept. of the Interior, U.S. Geological Survey,...”
    Government Document Book
  8. 8
    Effects of agricultural best-management practices on the Brush Run Creek headwaters, Adams County, Pennsylvania, prior to and during nutrient management.
    by Langland, Michael J.
    Published 1996
    “...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
    Government Document Book
  9. 9
    Changes in bottom-surface elevations in three reservoirs on the lower Susquehanna River, Pennsylvania and Maryland, following the January 1996 flood : implications for nutrient and sediment loads to Chesapeake Bay /
    by Langland, Michael J.
    Published 1997
    “...[U.S. Dept. of the Interior, U.S. Geological Survey] ;...”
    Government Document Book
  10. 10
    Surface-water quantity and quality, aquatic biology, stream geomorphology, and groundwater-flow simulation for National Guard Training Center at Fort Indiantown Gap, Pennsylvania, 2002-05 /
    by Langland, Michael J.
    Published 2010
    “...U.S. Dept. of the Interior, U.S. Geological Survey,...”
    Get full text
    Government Document eBook
  11. 11
    Total nutrient and sediment loads, trends, yields, and nontidal water-quality indicators for selected nontidal stations, Chesapeake Bay Watershed, 1985-2011 /
    by Langland, Michael J.
    Published 2013
    “...U.S. Department of the Interior, U.S. Geological Survey,...”
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    Government Document eBook
  12. 12
    Effects of legacy sediment removal and effects on nutrients and sediment in Big Spring Run, Lancaster County, Pennsylvania, 2009-15 /
    by Langland, Michael J.
    Published 2020
    “...U.S. Department of the Interior, U.S. Geological Survey,...”
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    Government Document eBook
  13. 13
    Hydrology and the hypothetical effects of reducing nutrient applications on water quality in the Bald Eagle Creek Headwaters, southeastern Pennsylvania prior to implementation of agricultural best-management practices /
    “...U.S. Department of the Interior, U.S. Geological Survey,...”
    Get full text
    Government Document eBook
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