Joshua Tree

Joshua Tree



Located in California’s hydrologic region, the Joshua Tree is 33,448.78 acres in size. This Very Low priority basin is home to an estimated 10,052 people (2010 value), which have been at a rate of 71.

Joshua Tree is a(n) basin with approximately 78 wells, of which approximately 12 are water supply wells. Groundwater accounts for approximately 100 percent of the basin’s water supply.

Source: CA DWR

Basin Notes

2004: Bulletin 118 basin description

2015: National Park Service: Joshua Tree National Park: A History of Preserving the Desert by Lary M. Dilsaver

2017: Desert Groundwater at Stake as Joshua Tree Pumping Plan Moves Forward, Press Enterprise

2019: Basin boundary modification: Per DWR: It “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 basin priority: very low