Author
- Geological Survey (U.S.) 939 results
- Library of Congress. Congressional Research Service 325 results
- United States. Environmental Protection Agency 208 results
- United States. Congress. House 169 results
- Oak Ridge National Laboratory 163 results
- United States. Congress. Senate. Committee on Environment and Public Works 158 results
- National Water-Quality Assessment Program (U.S.) 152 results
- Library of Congress. Congressional Research Service. Resources, Science, and Industry Division 124 results
- United States. Environmental Protection Agency. Office of Water 124 results
- Pacific Northwest National Laboratory (U.S.) 118 results
- Pacific Northwest Laboratory 116 results
- United States. Environmental Protection Agency. Office of Research and Development 116 results
- United States. Congress. House. Committee on Transportation and Infrastructure. Subcommittee on Water Resources and Environment 99 results
- United States. Congress. House. Committee on Transportation and Infrastructure 97 results
- Argonne National Laboratory 96 results
- United States 95 results
- United States. Department of Energy. Savannah River Site 89 results
- United States. Public Health Service 85 results
- United States. Congress. House. Committee on Public Works 83 results
- National Field Research Center 76 results
- United States. Congress. Senate. Committee on Public Works 75 results
- United States. Federal Water Pollution Control Administration 73 results
- United States. General Accounting Office 68 results
- United States. Congress 59 results
- Alabama A & M University 58 results
- U.S. Fish and Wildlife Service 55 results
- United States. Army. Corps of Engineers 54 results
- Westinghouse Savannah River Company 54 results
- United States. Division of Water Supply and Pollution Control 51 results
- United States. Congress. House. Committee on Public Works and Transportation 48 results
- United States. Congress. Senate. Committee on Public Works. Subcommittee on Air and Water Pollution 46 results
- United States. Congress. House. Committee on Public Works and Transportation. Subcommittee on Investigations and Oversight 45 results
- Environmental Research Laboratory (Athens, Ga.) 42 results
- United States. Congress. House. Committee on Public Works and Transportation. Subcommittee on Water Resources 42 results
- Environmental Research Laboratory (Duluth, Minn.) 41 results
- Lawrence Livermore National Laboratory 41 results
- United States. Congress. House. Committee on Merchant Marine and Fisheries 40 results
- Brookhaven National Laboratory 39 results
- United States. Congress. Senate. Committee on Commerce 39 results
- United States. Government Accountability Office 38 results
- United States. Congress. House. Committee on Rivers and Harbors 37 results
- Colorado. Department of Public Health and Environment. Water Quality Control Division 36 results
- National Energy Technology Laboratory (U.S.) 36 results
- United States. Bureau of Reclamation 36 results
- ERIC Clearinghouse for Science, Mathematics, and Environmental Education 35 results
- United States. Congress. House. Committee on Government Operations 35 results
- United States. Congress. Senate 35 results
- United States. Department of Energy 35 results
- United States. Department of Energy. Office of Scientific and Technical Information 35 results
- United States. Environmental Protection Agency. Office of Research and Monitoring 35 results more…