Showing 1 - 14 results of 14 for search 'The Survey :', query time: 0.27s Refine Results
  1. 1
    Evaluation of agricultural best-management practices in the Conestoga River headwaters, Pennsylvania : hydrology of a small carbonate site near Ephrata, Pennsylvania, prior to implementation of nutrient management /
    by Koerkle, Edward H.
    Published 1996
    “...U.S. Geological Survey,...”
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  2. 2
    Evaluation of agricultural best-management practices in the Conestoga River Headwaters, Pennsylvania : effects of nutrient management on quality of surface runoff at a small carbonate-rock site near Ephrata, Pennsylvania, 1984-90 /
    “...U.S. Geological Survey,...”
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  3. 3
    Surface-water quality changes after 5 years of nutrient management in the Little Conestoga Creek headwaters, Pennsylvania, 1989-91 /
    “...U.S. Geological Survey,...”
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  4. 4
    Herbicide concentrations in and loads transported by the Conestoga River and Pequea Creek, Lancaster County, Pennsylvania, 1992-95 /
    “...U.S. Geological Survey,...”
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  5. 5
    Evaluation of agricultural best-management practices in the Conestoga River headwaters, Pennsylvania : effects of nutrient management on water quality in the Little Conestoga Creek headwaters, 1983-89 /
    by Koerkle, Edward H.
    Published 1996
    “...U.S. Geological Survey,...”
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    Government Document eBook
  6. 6
    Evaluation of agricultural best-management practices in the Conestoga River Headwaters, Pennsylvania : effects of nutrient management on water quality in the Little Conestoga Creek Headwaters, 1983-89.
    Published 1996
    “...U.S. Dept. of the Interior, U.S. Geological Survey :...”
    Government Document Book
  7. 7
    Evaluation of agricultural best-management practices in the Conestoga River headwaters, Pennsylvania : hydrology of a small carbonate-rock site near Ephrata, Pennsylvania, prior to implementation of nutrient management : water-quality study of the Conestoga River headwaters, Pennsylvania.
    Published 1997
    “...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
    Government Document Book
  8. 8
    Surface-water quality changes after 5 years of nutrient management in the Little Conestoga Creek headwaters, Pennsylvania, 1989-91.
    by Koerkle, Edward H.
    Published 1997
    “...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
    Government Document Book
  9. 9
    Herbicide concentrations in and loads transported by the Conestoga River and Pequea Creek, Lancaster County, Pennsylvania, 1992-95.
    by Reed, Lloyd A.
    Published 1997
    “...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
    Government Document Book
  10. 10
    Trends in surface-water quality during implementation of best-management practices in Mill Creek and Muddy Run basins, Lancaster County, Pennsylvania /
    by Koerkle, Edward H.
    Published 2000
    “...U.S. Dept. of the Interior, U.S. Geological Survey,...”
    Government Document Book
  11. 11
    Relations of biological indicators to nutrient data for lakes and streams in Pennsylvania and West Virginia, 1990-98 /
    by Brightbill, Robin A.
    Published 2003
    “...U.S. Dept. of the Interior, U.S. Geological Survey...”
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    Government Document Book
  12. 12
    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 /
    by Senior, Lisa A.
    Published 2003
    “...U.S. Dept. of the Interior, U.S. Geological Survey,...”
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    Government Document Book
  13. 13
    Simulation of streamflow and water quality in the Red Clay Creek subbasin of the Christina River basin, Pennsylvania and Delaware /
    by Senior, Lisa A.
    Published 2003
    “...U.S. Dept. of the Interior, U.S. Geological Survey,...”
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    Government Document Book
  14. 14
    Estimation of baseline daily mean streamflows for ungaged locations on Pennsylvania streams, water years 1960-2008 /
    by Stuckey, Marla H.
    Published 2012
    “...U.S. Dept. of the Interior, U.S. Geological Survey,...”
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    Government Document eBook
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