Upper Santa Ana Valley – Chino
Statistics
- Basin Name
- Upper Santa Ana Valley – Chino
- Basin Number
- 8-002.01
- SGMA Basin Priority
- Very Low
- Critically Overdrafted
- No
- Hydrologic Region Name
- South Coast
- Counties
- Los Angeles, Riverside, San Bernardino
At-A-Glance
Located in California’s South Coast hydrologic region, the Upper Santa Ana Valley – Chino is 153,762 acres in size. This Very Low priority basin is home to an estimated 910,806 people (2010 value). It has approximately 1551 wells, of which approximately 164 are water supply wells. Groundwater accounts for approximately 59.9 percent of the basin’s water supply.
Basin Notes
1978-present: Watermaster reports
Mainly adjudicated basin with 2,553 unadjudicated acres
2003: Bulletin 118 basin description
2016 Basin boundary modification Santa Ana Watershed Project Authority
Revised basin boundary description
2018: Final prioritization: Very Low.