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Author/Creator
- Geological Survey (U.S.)86
- Wolf, R. J.8
- United States. Environmental Protection Agency7
- New York (State). Department of Environmental Conservation5
- Hansen, Cristi V.4
- Reynolds, Richard J.4
- Robson, Stanley G.4
- McGovern, Harold E.3
- New Jersey. Department of Environmental Protection3
- Spinazola, Joseph M.3
- United States. Army. Corps of Engineers3
- Arizona. Department of Water Resources2
- Arnold, L. R.2
- Carruth, R. L.2
- Colorado Water Conservation Board2
- Colorado. Division of Water Resources2
- Commonwealth Utilities Corporation (Northern Mariana Islands)2
- Freethey, Geoffrey W.2
- Hallberg, Laura L.2
- Heiny, Janet S.2