Author
Geological Survey (U.S.)
169
Geological Survey (U.S.),
115
United States. Bureau of Reclamation
21
United States. Environmental Protection Agency
20
National Water-Quality Assessment Program (U.S.)
16
U.S. Fish and Wildlife Service
14
Hornberger, Michelle I.
9
Dodge, Kent A.
8
United States. National Park Service
8
Breault, Robert F.
7
Bullock, John H.
6
United States. Bureau of Land Management
6
Dyke, Jessica L.
5
Metro Wastewater Reclamation District (Colo.)
5
U.S. Atomic Energy Commission
5
Colorado River Water Conservation District (Colo.)
4
Dodge, Kent A.,
4
Doyle, Micelis C., 1966-
4
Grand Canyon Monitoring and Research Center
4
Hornberger, Michelle I.,
4
Massachusetts. Department of Environmental Protection
4
Minnesota Pollution Control Agency
4
United States. Army. Corps of Engineers
4
United States. Forest Service
4
Adrian, Betty M.
3
Ashman, Mary S.
3
Cooke, Matthew G.
3
Crock, J. G.
3
Frisken, James G.
3
Heath, Douglas
3
Indianapolis (Ind.). Department of Public Works
3
Kimbrough, Robert, 1957-
3
Minnesota. Legislature. Legislative Commission on Minnesota Resources
3
Mueller, David K.,
3
Schuster, Paul F.
3
Smith, David B. 1948-
3
United States. Bureau of Indian Affairs
3
Washington (State). Department of Ecology
3
Washington County (Or.). Unified Sewerage Agency
3
Yager, Tracy J. B.
3
Anderson, Richard M.
2
Arbogast, B. F.
2
Army Armament Research, Development, and Engineering Center (U.S.)
2
Asquith, William H.
2
Axtmann, Ellen V.
2
Brabets, Timothy P.
2
Butler, David L. 1946-
2
Cathrall, John B.
2
Chesapeake Bay Program (U.S.)
2
Church, S. E.
2
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