Author
Geological Survey (U.S.)
3,215 results
National Water-Quality Assessment Program (U.S.)
117 results
United States. Environmental Protection Agency
65 results
United States. National Park Service
57 results
California. State Water Resources Control Board
40 results
United States. Bureau of Reclamation
37 results
Belitz, Kenneth
35 results
Aichele, Steve S. (Stephen Scranton)
29 results
Oakland County (Mich.)
29 results
National Assessment of Oil and Gas Project (U.S.)
28 results
United States. Bureau of Land Management
28 results
Hill-Rowley, Richard
25 results
Malone, Matt
25 results
United States. Forest Service
25 results
University of Michigan--Flint. Center for Applied Environmental Research
25 results
U.S. Fish and Wildlife Service
24 results
Cobb, Edward H. (Edward Huntington), 1916-1983
22 results
Southwest Florida Water Management District (Fla.)
22 results
Ground Water Ambient Monitoring and Assessment Program (Calif.)
21 results
World Petroleum Resources Project
21 results
Weld, Betsy A.
19 results
Klett, T. R. (Timothy R.)
18 results
New Jersey. Department of Environmental Protection
18 results
New York (State). Department of Environmental Conservation
18 results
United States. Federal Emergency Management Agency
18 results
Upper Midwest Environmental Sciences Center (Geological Survey)
18 results
Eddy-Miller, Cheryl A.
15 results
United States. Army. Corps of Engineers
15 results
Washington (State). Department of Ecology
15 results
Arizona. Department of Water Resources
14 results
United States. Agency for International Development
14 results
United States. Department of Energy
14 results
Michigan. Department of Environmental Quality
13 results
Wyoming. Department of Environmental Quality
13 results
Lee, Myung W.
12 results
South Florida Water Management District (Fla.)
12 results
Geological Survey (U.S.). Ground-water Resources Program
11 results
Idaho Geological Survey
11 results
Mason, Robert R.
11 results
Ockerman, Darwin J.
11 results
Soler-López, Luis R.
11 results
Wyoming. Department of Agriculture
11 results
Dudley, Robert W.
10 results
Fram, Miranda S. (Miranda Susan)
10 results
Hamilton, Pixie A.
10 results
Johnson, Arthur
10 results
Massachusetts. Department of Environmental Protection
10 results
Mineral Resources Program (Geological Survey)
10 results
Mojave Water Agency (Calif.)
10 results
New Hampshire. Department of Environmental Services
10 results
more…