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Author/Creator
- Geological Survey (U.S.)15
- New York (State). Department of Environmental Conservation3
- United States. Environmental Protection Agency3
- Arizona. Department of Water Resources2
- Carruth, R. L.2
- Commonwealth Utilities Corporation (Northern Mariana Islands)2
- Northern Mariana Islands2
- Reynolds, Richard J.2
- Zarriello, Phillip J.2
- American Samoa Environmental Protection Agency1
- Anderson, H. W.1
- Arihood, Leslie D.1
- Arizona Municipal Water Users' Association1
- Brantly, Jeffrey A.1
- Brown, James G. (James Gary), 1956-1
- Cotton, John E.1
- Engineering Enterprises1
- Fowler, Kathleen K.1
- Freethey, Geoffrey W.1
- Hahn, Mary Ellen1