- Basin Name
- Ojai Valley
- Basin Number
- SGMA Basin Priority
- Critically Overdrafted
- Hydrologic Region Name
- South Coast Hydrologic Region
- Adjacent Basins
Ventura River Valley - Upper Ventura River 4-003.01, Upper Ojai Valley - 4-001,
Located in California’s South Coast hydrologic region, the Ojai Valley is 5,913 acres in size. This High priority basin is home to an estimated 7,745 people (2010 value), which have been at a rate of -12.74.
Ojai Valley is a(n) basin with approximately 163 wells, of which approximately 8 are water supply wells. Groundwater accounts for approximately 63.38 percent of the basin’s water supply.
2014: CASGEM Basin Prioritization – medium
Ojai Basin model update – Ventura River Watershed Council
2018: Draft prioritization – medium. Comment: In the Ojai Valley, the water level elevation in key Well No. 04N22W05L08S was down 50.2 feet from the 2013 measurement after having been down 78.4 feet from the 2012 measurement. The Ojai Valley basin responds quickly to rainfall or the lack of rainfall, and it is not uncommon to see large drops in water level during dry periods and recovery to at or above normal levels during wet periods (see Hydrograph in Appendix B). Source: 2014 Annual Report of Groundwater Conditions, Ventura County Watershed Protection District, Water Resources Division
2018 Final Basin Prioritization: Basin status is changed from medium priority to high priority.