Author
Geological Survey (U.S.),
U.S. Atomic Energy Commission,
337
National Water-Quality Assessment Program (U.S.)
259
United States. Bureau of Reclamation
214
U.S. Fish and Wildlife Service
178
United States. Army. Corps of Engineers
169
United States. Bureau of Land Management
164
United States. National Park Service
162
United States. Environmental Protection Agency
159
United States. Department of Energy
156
Marshall, R. B. 1867-1949,
73
United States. Bureau of Indian Affairs
70
Southwest Florida Water Management District (Fla.)
67
Washington (State). Department of Ecology
60
U.S. Atomic Energy Commission
56
California. Department of Water Resources
55
New York (State). Department of Environmental Conservation
54
United States. Army. Corps of Engineers,
46
Nassau County (N.Y.). Department of Public Works
41
Wisconsin. Department of Natural Resources
41
South Florida Water Management District (Fla.)
40
United States. Federal Emergency Management Agency
40
Carswell, William J.,
39
Kentucky Geological Survey
39
New Jersey. Department of Environmental Protection
39
United States. Federal Highway Administration
37
United States. Forest Service
37
California. State Water Resources Control Board
36
Florida. Department of Environmental Regulation
36
United States. Interdepartmental Committee on Scientific and Cultural Cooperation,
35
Minnesota. Department of Natural Resources
32
United States. Department of Energy. Nevada Operations Office
32
United States. Bureau of Mines,
31
Imlay, Ralph W. 1908-1989,
30
National and Global Petroleum Resource Assessment Project (U.S.)
30
Cobban, William A., 1916-2015,
29
Gannett, Henry, 1846-1914,
29
United States. National Park Service,
29
Water Availability and Use Science Program (U.S.)
29
Puerto Rico Aqueduct and Sewer Authority
28
United States. Bureau of Reclamation,
28
United States. Environmental Protection Agency,
27
Arizona. Department of Water Resources
26
Arkansas Soil and Water Conservation Commission
26
Belitz, Kenneth,
26
Groundwater Resources Program (U.S.)
26
Prakken, Lawrence B.,
26
California. State Water Resources Control Board,
24
Clarke, Frank Wigglesworth, 1847-1931,
24
Eisenhuth, H. P.,
24
more ...