Author
Geological Survey (U.S.)
1,008
Geological Survey (U.S.),
805
United States. Environmental Protection Agency
65
United States. Department of Energy
57
United States. Department of Energy. Nevada Operations Office
40
United States. National Park Service
37
United States. Bureau of Reclamation
32
National Regional Aquifer Systems Analysis Program (U.S.)
26
Southwest Florida Water Management District (Fla.)
26
ScienceDirect (Online service)
25
South Florida Water Management District (Fla.)
24
United States. Army. Corps of Engineers
24
New Jersey. Department of Environmental Protection
23
United States. Bureau of Land Management
22
Nassau County (N.Y.). Department of Public Works
20
National Water-Quality Assessment Program (U.S.)
18
SpringerLink (Online service)
17
Washington (State). Department of Ecology
17
St. Johns River Water Management District (Fla.)
16
Arkansas Soil and Water Conservation Commission
15
Martin, Peter, 1953-
15
Barlow, Paul M.
14
Dumouchelle, D. H.
14
Geological Survey (U.S.). Ground-water Resources Program
14
New Mexico. State Engineer Office
14
Suffolk County (N.Y.). Department of Health Services
14
Idaho. Department of Water Resources
13
Oregon. Water Resources Department
13
Prudic, David E.
13
Masterson, John P.
12
Reilly, Thomas E.
12
New York (State). Department of Environmental Conservation
11
Aberdeen Proving Ground (Md.). Environmental Conservation and Restoration Division
10
Goode, Daniel J.
10
Hill, Mary Catherine
10
Leake, S. A.
10
Minnesota. Department of Natural Resources
10
Myers, Nathan C.,
10
Robert S. Kerr Environmental Research Laboratory
10
Suffolk County Water Authority
10
United States. National Nuclear Security Administration. Nevada Site Office
10
Walter, Donald A.
10
Wisconsin. Department of Natural Resources
10
Wyoming. State Engineer's Office
10
Yager, Richard M.
10
Bauer, H. H.
9
California. Department of Water Resources
9
Clarke, J. S.
9
Goode, Daniel J.,
9
Harbaugh, Arlen W.
9
more ...