Author
Colorado. Department of Public Health and Environment. Water Quality Control Division
76
Source Water Assessment and Protection Program (Colo.)
63
United States. Environmental Protection Agency. Office of Water
40
Geological Survey (U.S.),
28
Geological Survey (U.S.)
17
United States. Environmental Protection Agency. Office of Ground Water and Drinking Water
10
United States. Environmental Protection Agency. Office of Water,
9
United States. Environmental Protection Agency
7
Colorado Water Resources and Power Development Authority
5
Colorado. Division of Local Government
5
SpringerLink (Online service)
5
Swackhamer, Deborah Liebl
4
United States. Bureau of Land Management
4
United States. Environmental Protection Agency. Office of the Administrator
4
United States. Environmental Protection Agency. Science Advisory Board
4
Cambridge (Mass.). Water Department
3
Colorado. Water Quality Control Commission
3
Pfeifle, C. A.
3
Rasmussen, R.,
3
ScienceDirect (Online service)
3
Triangle Area Water Supply Monitoring Project Steering Committee (N.C.)
3
United States. Environmental Protection Agency. Office of the Inspector General,
3
Waldron, Marcus C.
3
Brigham, William R.
2
Cadmus Group
2
Cain, J. L.
2
Colorado. Department of Public Health and Environment
2
Dzombak, David A.
2
Ernst, Caryn
2
Films for the Humanities & Sciences (Firm)
2
Florida. Department of Environmental Regulation
2
Infobase
2
Library of Congress. Congressional Research Service,
2
Merced (Calif.)
2
National Water-Quality Assessment Program (U.S.)
2
Risk Reduction Engineering Laboratory (U.S.)
2
Stevenson, Craig (Wildlife biologist)
2
Tiemann, Mary,
2
Trust for Public Land (U.S.)
2
United States. Congress. Senate. Committee on Environment and Public Works. Subcommittee on Fisheries, Water, and Wildlife,
2
United States. Environmental Protection Agency. Office of Ground Water and Drinking Water. Drinking Water Protection Division
2
United States. Environmental Protection Agency. Office of Ground Water and Drinking Water. Drinking Water Protection Division,
2
United States. Environmental Protection Agency. Office of Research and Development
2
United States. Environmental Protection Agency. Office of Science and Technology
2
Younos, Tamim M.,
2
ABC International
1
Ackerman, Diane, 1948-
1
Agardy, Franklin J.
1
Ali, Imran
1
American Water Works Association
1
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