Showing 1 - 10 results of 10 for search 'The Survey :', query time: 0.23s Refine Results
  1. 1
    Status yields and trends of nutrients and sediment and methods of analysis for nontidal data-collection programs, Chesapeake Bay basin, 1985-96 /
    by Langland, Michael J.
    Published 1998
    “...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
    Government Document Microform Book
  2. 2
    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
  3. 3
    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
  4. 4
    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
  5. 5
    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
  6. 6
    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
  7. 7
    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
  8. 8
    Yields and trends of nutrients and total suspended solids in nontidal areas of the Chesapeake Bay basin, 1985-96 /
    by Langland, Michael J.
    Published 1998
    “...U.S. Dept. of the Interior, U.S. Geological Survey,...”
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    Government Document Book
  9. 9
    Trends and status of flow, nutrients, and sediments for selected nontidal sites in the Chesapeake Bay watershed, 1985-98 /
    Published 2000
    “...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
    Government Document Microform Book
  10. 10
    Nutrient and sediment concentrations, loads, and trends for four nontidal tributaries in the Chesapeake Bay Watershed, 1997-2001 /
    by Senus, Michael P.
    Published 2005
    “...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
    Government Document Book
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