Creator
- Geological Survey (U.S.) Minerals Information Team6
- California. Department of Water Resources5
- California Geological Survey3
- California. Department of Conservation3
- Marshall, Gerald3
- Mendes, Eric3
- Geological Survey (U.S.)1
- Geological Survey (U.S.). Water Resources Division. Wisconsin District1
- Monterey County (Calif.)1
- Santa Clara County (Calif.). Planning Office1
- Santa Clara Valley Water District (Calif.)1
- U.S. Fish and Wildlife Service1