San Gabriel Valley

Source: CA DWR

San Gabriel Valley



Located in California’s hydrologic region, the San Gabriel Valley is 126,379 acres in size. This Very Low priority basin is home to an estimated 1,267,729 people (2010 value), which have been at a rate of 2.34.

San Gabriel Valley is a(n) basin with approximately 1463 wells, of which approximately 242 are water supply wells. Groundwater accounts for approximately 73.65 percent of the basin’s water supply.

Source: CA DWR
Source: CA DWR

Basin Notes

2003: Bulletin 118 basin description 

2014: CASGEM basin priority – high. Comment – Superfund sites in basin.

2018: Draft basin prioritization – very low. Comments:

2017-18 Main San Gabriel Basin Watermaster Annual Report; previous yearly reports

Basin 97.01 adjudicated. Web page: Main San Gabriel Basin Watermaster

2018 Final Basin Prioritization: Basin priority is changed from high to very low.

GSA Information

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