San Joaquin Valley – Turlock
Statistics
- Basin Name
- San Joaquin Valley – Turlock
- Basin Number
- 5-022.03
- SGMA Basin Priority
- High
- Critically Overdrafted
- No
- Hydrologic Region Name
- San Joaquin River
- Counties
- Merced, Stanislaus
- Adjacent Basins
At-A-Glance
Located in California’s San Joaquin River hydrologic region, the San Joaquin Valley – Turlock is 348,187 acres in size. This High priority basin is home to an estimated 202,206 people (2010 value), which have been at a rate of 37.89.
San Joaquin Valley – Turlock is a(n) basin with approximately 6916 wells, of which approximately 175 are water supply wells. Groundwater accounts for approximately 49.87 percent of the basin’s water supply.

Basin Notes
2003: Bulletin 118 basin description
2008: Turlock Groundwater Basin Draft Groundwater Management Plan
2014: CASGEM prioritization – high
2018: Draft basin prioritization – high. Comment: CASGEM/WDL/GWIDS: Longterm hydrographs show groundwater level decline. Source: DWR 2) Pumping depressions and groundwater level decline stated in GWMP
2018 Final Basin Prioritization: Basin status remains unchanged at high priority.