Warren Valley

Statistics

  • Basin Name
  • Warren Valley
  • Basin Number
  • 7-012
  • SGMA Basin Priority
  • Very Low
  • Critically Overdrafted
  • No
  • Hydrologic Region Name
  • Colorado River
  • Counties
  • San Bernardino
  • Adjacent Basins
  • Joshua Tree 7-062,

At-A-Glance

Located in California’s Colorado River hydrologic region, the Warren Valley is 17,475.73 acres in size. This Very Low priority basin is home to an estimated 17,761 people (2010 value). It has approximately 15 public supply wells. Groundwater accounts for 100 percent of the basin’s water supply.

Source: CA DWR

Basin Notes

1977: Adjudicated basin. Watermaster reports

2004: Bulletin 118 basin description

2019: Basin boundary modification: Per DWR: “The basin boundary modification revises the basin boundary into alignment with the Warren Valley basin description published in Bulletin-118 (Update 2003). The modification aligns the western boundary of the Joshua Tree basin with the geographic location of the Yucca barrier, a feature that affects groundwater flow.”

Phase 2 draft priority: Very Low