Water Supply Update

California • State Water Project

October 2026

SWP Allocation

45% 12,960 of 28,800 acre-feet

Map of California showing the simplified State Water Project route: from Lake Oroville through the Delta and San Luis Reservoir, then down the California Aqueduct to the San Gabriel Valley.

Lake Oroville

45% capacity

126.9% of average

San Luis Reservoir

73% capacity

102.4% of average

Simplified State Water Project route

U.S. Drought Monitor

U.S. Drought Monitor map of California, valid October 13, 2026. Drought categories and percentages are listed below the map.
Valid October 13, 2026
  • 72.12%Abnormally Dry
  • 23.26%Moderate
  • 0%Severe
  • 0%Extreme
  • 0%Exceptional

23.26% of California in moderate drought or worse

Local Rainfall

0.5in

2.2% of average

Water Year 2026–2027

CA Snowpack

0%

of April 1 average

CA Reservoirs

59%

of capacity

106% of average

Groundwater Levels

Main San Gabriel Basin

249.2ft

above mean sea level

Operating range 200–250 ft
Within range

Raymond Basin

Sierra Madre Well

496.3ft

above mean sea level

View current conditions from the ⁠California Department of Water Resources’ California Water Watch. The U.S. Drought Monitor is jointly produced by the National Drought Mitigation Center at the University of Nebraska-Lincoln, the United States Department of Agriculture, the National Oceanic and Atmospheric Administration and the National Aeronautics and Space Administration. Map courtesy of NDMC.