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Author/Creator
- Geological Survey (U.S.)85
- National Water-Quality Assessment Program (U.S.)8
- Green, W. Reed4
- Massachusetts. Department of Environmental Protection4
- Arkansas Game and Fish Commission3
- Arkansas Soil and Water Conservation Commission3
- Kansas. Department of Health and Environment3
- Masterson, John P.3
- Albuquerque (N.M.). Department of Public Works2
- Anderholm, Scott K.2
- Bexfield, Laura M.2
- Breault, Robert F.2
- Delaware River Basin Commission2
- Delaware. Department of Natural Resources and Environmental Control2
- Desimone, Leslie A.2
- Galloway, Joel M.2
- Georgia. Environmental Protection Division2
- Gordon, Alison D.2
- Heywood, Charles E.2
- Juracek, Kyle E.2