Riverside Drought · Restored 2015–2016 resources   |   Official drought guidance

Our water system

Groundwater, infrastructure and water resources in Riverside.

Local groundwater supplies

The original drought FAQ describes three basins supplying Riverside:

  • Bunker Hill Basin, in the San Bernardino area.
  • Rialto-Colton Basin, in the Colton area.
  • Riverside Basin.

The brochure explains why groundwater reserves and conservation both matter. Reduced rainfall can affect replenishment even when stored supplies help meet immediate needs.

Original system documents

RPU water information