Author
Geological Survey (U.S.)
2,230
Geological Survey (U.S.),
1,397
National Water-Quality Assessment Program (U.S.)
299
United States. Environmental Protection Agency
113
United States. Bureau of Reclamation
90
United States. Bureau of Land Management
73
United States. National Park Service
71
U.S. Fish and Wildlife Service
47
United States. Army. Corps of Engineers
47
SpringerLink (Online service)
44
United States. Environmental Protection Agency. Office of Water
44
United States. Department of Energy
39
United States. Bureau of Indian Affairs
36
California. State Water Resources Control Board
34
New York (State). Department of Environmental Conservation
28
Geological Survey (U.S.). Water Resources Division
27
New Jersey. Department of Environmental Protection
23
Washington (State). Department of Ecology
23
Wisconsin. Department of Natural Resources
22
Missouri. Division of Environmental Quality
21
Belitz, Kenneth
19
Colorado. Department of Public Health and Environment. Water Quality Control Division
19
Kansas. Department of Health and Environment
19
United States. Environmental Protection Agency,
19
Wells, J. V. B.
19
Florida. Department of Environmental Regulation
18
Ground Water Ambient Monitoring and Assessment Program (Calif.)
17
Illinois. Environmental Protection Agency
17
Pennsylvania. Department of Environmental Protection
17
Southwest Florida Water Management District (Fla.)
16
Andrews, William J., 1962-
15
Colorado Geological Survey
15
Field, Stephen J. 1935-
15
Monroe County (N.Y.). Department of Health
15
Pope, Larry M.
15
Robertson, Dale M.
15
Tanner, Dwight Q.
15
Welch, Alan H.
15
Williams, Rhea P.
15
Butler, David L. 1946-
14
Ohio. Division of Reclamation
14
United States. Forest Service
14
Wichita (Kan.)
14
Louisiana. Department of Transportation and Development
13
Minnesota. Department of Natural Resources
13
New Jersey. Department of Environmental Protection and Energy
13
Rose, William J.
13
South Florida Water Management District (Fla.)
13
Tornes, L. H.
13
California. Department of Water Resources
12
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