Showing 1 - 4 results of 4 for search '"Nitrates"', query time: 0.20s Refine Results
  1. 1
    Nitrate concentrations, 1936-99, and pesticide concentrations, 1990-99, in the unconfined aquifer in the San Luis Valley, Colorado /
    by Stogner, Robert W.
    Published 2001
    Subjects: “...Nitrates Environmental aspects San Luis Valley (Colo. and N.M.)...”
    Get full text
    Government Document eBook
  2. 2
    Variability of nitrate concentrations in the shallow ground water in a selected area of the San Luis Valley, south-central Colorado.
    by Stogner, Robert W.
    Published 1997
    Subjects: “...Nitrates Environmental aspects San Luis Valley (Colo. and N.M.)...”
    Government Document Book
  3. 3
    Distribution and mass of nitrate in the unconfined aquifer beneath the intensively cultivated area north of the Rio Grande, San Luis Valley, Colorado, 1997 through 2001 /
    by Stogner, Robert W.
    Published 2005
    Subjects: “...Nitrates Environmental aspects San Luis Valley (Colo. and N.M.)...”
    Get full text
    Government Document eBook
  4. 4
    Nitrate concentrations, 1936-99, and pesticide concentrations, 1990-99, in the unconfined aquifer in the San Luis Valley, Colorado /
    by Stogner, Robert W.
    Published 2001
    Subjects: “...Nitrates Environmental aspects San Luis Valley (Colo. and N.M.)...”
    Government Document Book
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