Author
ProQuest (Firm)
890 results
Geological Survey (U.S.)
875 results
Library of Congress. Congressional Research Service
321 results
SpringerLink (Online service)
300 results
Texas Water Commission
248 results
Meyer, John E.
227 results
Montgomery, Victoria K.
227 results
United States. Environmental Protection Agency
162 results
National Water-Quality Assessment Program (U.S.)
154 results
United States. Office of Water Resources Research
134 results
United States. Environmental Protection Agency. Office of Water
117 results
United States. Office of Water Research and Technology
89 results
United States. Congress. Senate. Committee on Environment and Public Works
81 results
United States. Environmental Protection Agency. Office of Research and Development
63 results
United States. Congress. House. Committee on Transportation and Infrastructure
58 results
United States. Congress. House. Committee on Transportation and Infrastructure. Subcommittee on Water Resources and Environment
53 results
U.S. Fish and Wildlife Service
50 results
United States. Congress. House. Committee on Public Works
49 results
United States. General Accounting Office
45 results
Copeland, Claudia
44 results
United States. Congress. Senate. Committee on Public Works
42 results
Environmental Research Laboratory (Athens, Ga.)
40 results
Texas Natural Resource Conservation Commission
39 results
United States. Bureau of Reclamation
37 results
Environmental Research Laboratory (Duluth, Minn.)
35 results
United States. Government Accountability Office
29 results
Industrial Environmental Research Laboratory (Research Triangle Park, N.C.)
28 results
NetLibrary, Inc
26 results
United States. Bureau of Land Management
26 results
United States. Congress. House. Committee on Public Works and Transportation
25 results
United States. Congress. House. Committee on Public Works and Transportation. Subcommittee on Investigations and Oversight
25 results
United States. Department of Energy
25 results
Environmental Monitoring and Support Laboratory (Cincinnati, Ohio)
24 results
Municipal Environmental Research Laboratory
24 results
Rutgers University. Water Resources Research Institute
24 results
United States. Congress. Senate. Committee on Public Works. Subcommittee on Air and Water Pollution
24 results
United States. Congress. House. Committee on Rivers and Harbors
23 results
United States. National Park Service
23 results
United States. Congress. House. Committee on Public Works and Transportation. Subcommittee on Water Resources
22 results
United States. Environmental Protection Agency. Health and Ecological Criteria Division
22 results
American Chemical Society. Division of Environmental Chemistry
21 results
Robert S. Kerr Environmental Research Laboratory
21 results
United States. Department of the Interior
21 results
United States. Environmental Protection Agency. Great Lakes National Program Office
21 results
Knovel (Firm)
20 results
Lichtfouse, Eric
20 results
New York (State). Department of Environmental Conservation
20 results
United States. Congress. House. Committee on Government Operations. Natural Resources and Power Subcommittee
20 results
University of Texas at Austin. Center for Research in Water Resources
20 results
Chesapeake Bay Program (U.S.)
19 results
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