Byron-Bethany Irrigation District GSA - East Contra Costa

San Joaquin Valley - East Contra Costa

What changed at each monthly refresh. Bold lines are notable changes. Subscribe to the RSS feed to get each update in a feed reader.

Readings through Sep 2026: first edition

• Kriged average 23 ft below ground in Sep 2026, 10.4 ft deeper than a year earlier. No readings in Jul–Sep 2026; the newest is from Apr 2026.
• 0 of 1 RMS wells read in the last 12 months are below their MT.
• NOAA-outlook forecast for Sep 2027: 18 ft below ground.

Forecasts use the NOAA outlook (CPC's Oct 2026 issue: water year 2027 at 122% of normal precipitation).