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Author/Creator
- Geological Survey (U.S.)10
- National Water-Quality Assessment Program (U.S.)2
- Nebraska. Department of Roads2
- Zimmerman, Marc James, 1947-2
- Alhadeff, S. Jack1
- Breault, Robert F.1
- Clark, Melanie L.1
- Desimone, Leslie A.1
- Dietsch, Benjamin J.1
- Dyar, T. R.1
- Embrey, S. S.1
- Frans, Lonna M.1
- Gamper, Merry E.1
- Georgia. Environmental Protection Division1
- Hess, Glen W. (Glen William), 1960-1
- Juracek, Kyle E.1
- Kansas. Department of Health and Environment1
- Massachusetts. Department of Environmental Protection1
- Massachusetts. Department of Environmental Protection. Office of Watershed Management1
- Nevada. Division of Water Resources1