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Author/Creator
- Geological Survey (U.S.)198
- United States. Environmental Protection Agency13
- South Florida Water Management District (Fla.)11
- United States. Department of Energy7
- United States. Bureau of Reclamation6
- Heinitz, Albert J.5
- Swain, Eric D.5
- U.S. Fish and Wildlife Service5
- United States. Army. Corps of Engineers. Rock Island District5
- Illinois. Environmental Protection Agency4
- National Water-Quality Assessment Program (U.S.)4
- New Jersey. Department of Environmental Protection4
- United States. Army. Corps of Engineers4
- United States. Bureau of Indian Affairs4
- Washington (State). Department of Ecology4
- Air Force Center for Environmental Excellence (U.S.)3
- Lanier, Timothy H.3
- Southwest Florida Water Management District (Fla.)3
- St. Johns River Water Management District (Fla.)3
- Stone, Janet Radway3