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Author/Creator
- Geological Survey (U.S.)[remove]68
- National Water-Quality Assessment Program (U.S.)11
- Fendick, Robert B.4
- Kimball, Briant A.4
- Peart, Dale B.4
- Tollett, Roland W.4
- United States. Bureau of Land Management4
- Indiana. Department of Environmental Management3
- Lucey, Keith J.3
- Thiros, Susan A.3
- Washington (State). Department of Ecology3
- Willoughby, Timothy C.3
- Cleasby, Thomas E.2
- Ebbert, J. C.2
- Huff, Glenn F.2
- Ludtke, Amy S.2
- Manning, Andrew Harvey2
- Nimick, David A.2
- Pima County (Ariz.). Department of Transportation and Flood Control District2
- Seanor, Ronald C.2