Livermore Valley

Source: CA DWR

Livermore Valley


  • Basin Name
  • Livermore Valley
  • Basin Number
  • 2-010
  • SGMA Basin Priority
  • Medium
  • Critically Overdrafted
  • No
  • Hydrologic Region Name
  • Counties
  • Alameda, Contra Costa
  • Adjacent Basins
  • No items found


Located in California’s San Francisco Bay hydrologic region, the Livermore Valley is 69,567 acres in size. This Medium priority basin is home to an estimated 196,838 people (2010 value), which have been at a rate of 24.48.

Livermore Valley is a(n) basin with approximately 772 wells, of which approximately 29 are water supply wells. Groundwater accounts for approximately 30.83 percent of the basin’s water supply.

Source: CA DWR
Source: CA DWR

Basin Notes

2003: Bulletin 118 basin description

2014: Basin Prioritization comments:
Some areas have boron concentrations exceeding 2 mg/L (B-118 & Sorenson et. al. 1985).

2018: Basin Prioritization comments:

  • 1) Declining groundwater – CASGEM/WDL/GWIDS: Stable hydrographs. Source: DWR 2) Protecting the Groundwater Basin’s levels: The Valley’s main groundwater basin has an estimated storage capacity of 250,000 acre-feet (an acre-foot is about 326,000 gallons, enough to supply two households per year). To prevent overpumping, the basin is cooperatively managed by Zone 7 and its retailers so that, even during multiyear droughts, groundwater levels do not drop below historic low levels of 130,000 acre-feet. Source: Zone 7 Water Agency

2018 Final Basin Prioritization: Basin status remains unchanged at medium priority.

GSA Information

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