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Author/Creator
- Geological Survey (U.S.)67
- United States. Department of Energy6
- National Water-Quality Assessment Program (U.S.)3
- United States. Environmental Protection Agency3
- Dunn, David D.2
- Florida. Department of Environmental Regulation2
- Gale, Robert W.2
- Haeni, F. P.2
- Hamlin, Scott N.2
- Lieblich, D. A.2
- Lower Columbia River Estuary Program2
- Mann, Larry J.2
- McCarthy, Kathleen A.2
- National Stream Quality Accounting Network (U.S.)2
- New Jersey. Department of Environmental Protection and Energy2
- New Mexico. State Engineer Office2
- Paillet, F. L.2
- Raines, Timothy H.2
- Santa Clara Valley Water District (Calif.)2
- South Florida Water Management District (Fla.)2