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Author/Creator
- Geological Survey (U.S.)40
- National Water-Quality Assessment Program (U.S.)6
- Washington (State). Department of Ecology3
- Ebbert, J. C.2
- Fendick, Robert B.2
- Huff, Glenn F.2
- Ludtke, Amy S.2
- Manning, Andrew Harvey2
- Pima County (Ariz.). Department of Transportation and Flood Control District2
- Seanor, Ronald C.2
- Smoot, Charles W.2
- Tadayon, Saeid2
- Thiros, Susan A.2
- Tollett, Roland W.2
- United States. Army. Corps of Engineers2
- United States. Army. Corps of Engineers. Vicksburg District2
- United States. Bureau of Land Management2
- Voelker, David C.2
- Anchorage (Alaska)1
- Arizona. Department of Water Resources1