Author
Geological Survey (U.S.)
124 results
United States. Environmental Protection Agency. Office of Water
66 results
National Water-Quality Assessment Program (U.S.)
46 results
ProQuest (Firm)
22 results
Alexander, Richard B.
9 results
Gilliom, Robert J.
9 results
United States. Environmental Protection Agency. Office of Research and Development
9 results
United States. General Accounting Office
9 results
Environmental Research Laboratory (Athens, Ga.)
8 results
Hamilton, Pixie A.
8 results
Municipal Environmental Research Laboratory
8 results
United States. Congress. House. Committee on Transportation and Infrastructure. Subcommittee on Water Resources and Environment
8 results
United States. Environmental Protection Agency
8 results
Alley, William M.
7 results
Copeland, Claudia
7 results
Grover, Nathan Clifford, 1868-1956
7 results
Hirsch, Robert M.
7 results
Library of Congress. Congressional Research Service
7 results
Ludtke, Amy S.
7 results
Mueller, David K.
6 results
National Water-Quality Laboratory (U.S.)
6 results
Paulsen, Carl G.
6 results
Schroder, L. J.
6 results
Corvallis Environmental Research Laboratory
5 results
Gurtz, Martin E.
5 results
National Exposure Research Laboratory (U.S.)
5 results
NetLibrary, Inc
5 results
Smith, Richard A.
5 results
Willoughby, Timothy C.
5 results
Capel, Paul D.
4 results
Geological Survey (U.S.). Office of Water Data Coordination
4 results
Geological Survey (U.S.). Water Resources Division
4 results
Georgia
4 results
Huber, Wayne Charles
4 results
Leahy, P. Patrick
4 results
Louisiana
4 results
Meador, Michael Rogers, 1958-
4 results
Miller, Mark P., 1969-
4 results
New Mexico
4 results
Texas
4 results
Toccalino, Patricia, 1965-
4 results
United States. Soil Conservation Service
4 results
Bennett, Claude F.
3 results
Brooks, Myron H.
3 results
Carlisle, Daren M.
3 results
Crawford, Charles G. (Charles Gene)
3 results
Crutchfield, Stephen R.
3 results
Eberts, Sandra M.
3 results
Florida
3 results
Geological Survey (U.S.). Water Resources Division. Caribbean District
3 results
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