San Joaquin Valley – Chowchilla

Source: CA DWR

San Joaquin Valley – Chowchilla



Located in California’s San Joaquin River hydrologic region, the San Joaquin Valley – Chowchilla is 145,574.30 acres in size. This High priority basin is home to an estimated 15,100 people (2010 value), which have been at a rate of 29.

San Joaquin Valley – Chowchilla is a(n) basin with approximately 1489 wells, of which approximately 16 are water supply wells. Groundwater accounts for approximately 95.58 percent of the basin’s water supply.

Source: CA DWR
Source: CA DWR

Basin Notes

2003: Bulletin 118 basin description

2014: CASGEM basin prioritization – high

2016: Basin boundary modification with the Madera subbasin

2018: Draft basin priority – high. Comments on groundwater levels and subsidence:

Groundwater Quality in the Shallow Aquifers of the Madera– Chowchilla and Kings Subbasins, San Joaquin Valley, California, U.S. Geological Survey, January 2018

2019: Basin boundary modification. Per DWR: It “revises the easterly portion of the Chowchilla Merced subbasins boundary to follow the Madera- Merced County line.” Phase 2 draft priority remains high.

2020:  January – Chowchilla Subbasin Sustainabile Groundwater Management Act Groundwater Sustainability Plan published

GSA Information

Author: Admin Think

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