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Author/Creator
- Geological Survey (U.S.)10
- South Florida Water Management District (Fla.)2
- United States. Environmental Protection Agency2
- Becker, Carol J.1
- Caddo Indian Tribe of Oklahoma1
- Cedar Falls Utilities (Iowa)1
- Cunningham, Kevin J. (Kevin John), 1953-1
- Davis, Marvin E.1
- Harlow, George E.1
- Howie, Barbara1
- Meisler, Harold1
- New Jersey. Division of Water Resources1
- Schaap, Bryan D.1
- Smith, Barry S.1
- Snow, Robert F.1
- Susong, David D.1
- Utah. Division of Water Quality1
- Virginia Beach (Va.). Department of Public Utilities1
- Wait, Robert L. (Robert Lyle), 1923-1
- Weaver, T. L. (Thomas Lynn), 1954-1