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- Geological Survey (U.S.)10
- Hamlin, Scott N.6
- Alpers, Charles N., 1958-5
- Brown, James G. (James Gary), 1956-4
- California. State Water Resources Control Board4
- East Bay Municipal Utility District (Calif.)4
- Geological Survey (U.S.), issuing body3
- Naftz, David L.3
- United States. Congress. Senate. Committee on Environment and Public Works. Subcommittee on Fisheries, Wildlife, and Water3
- Diehl, Sharon F.2
- Hunerlach, Michael P.2
- Kimball, Briant A.2
- Sams, James I.2
- United States2
- United States. Bureau of Land Management2
- Williams, R. David (Roderick David), 1949-2
- Beer, Kevin M.1
- Brew, Robert1
- British Petroleum Company1
- Cleasby, Thomas E.1