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Author/Creator
- Geological Survey (U.S.)47
- Driscoll, Daniel G.3
- West Dakota Water Development District (S.D.)3
- Wisconsin. Department of Natural Resources3
- Carter, Janet M.2
- Colorado River Water Conservation District (Colo.)2
- Hicks, D. W.2
- Illinois. Environmental Protection Agency2
- Konrad, Christopher P. (Christopher Peter)2
- Longsworth, S. A.2
- Mills, Patrick C.2
- National Water-Quality Assessment Program (U.S.)2
- New Jersey. Department of Environmental Protection2
- South Dakota. Department of Environment and Natural Resources2
- South Florida Water Management District (Fla.)2
- Stevens, Michael R.2
- United States. Environmental Protection Agency2
- Winterstein, Thomas A.2
- Adamski, James C.1
- Adolphson, Debbie L.1