Jan. 8, 2026 - (Español abajo) - Guerneville, CA — A spill of untreated wastewater from the Russian River County Sanitation District treatment plant stopped at 6:50 a.m. Thursday, Jan. 8. The spill began the morning of Tuesday, Jan. 6, when the plant received influent at a peak rate of 4 million gallons per day.District staff are assessing the total spill volume and preparing required reports for…

Jan. 6, 2026 - (Español abajo)- Guerneville, CA — Sonoma Water is responding to a spill of untreated wastewater at the Russian River Treatment Plant after heavy overnight rainfall from an atmospheric river overwhelmed the facility and caused it to reach capacity early Tuesday.The plant, located at 18400 Neeley Road in Guerneville, was receiving flows at a rate of approximately four million gallon…

Nov. 13, 2025 - SANTA ROSA, CA - In anticipation of increased river flows, the Sonoma County Water Agency (Sonoma Water) began lowering its rubber dam on the Russian River near Forestville on Nov. 13. Sonoma Water routinely lowers the inflatable dam when flow forecasts indicate the river will exceed 1,600 cubic feet per second to protect the structure from potential damage.The rubber dam is locat…

Oct. 22, 2025 - Officials commemorate revised water control manual for Lake Mendocino in Oct. 22 ceremonyUKIAH, Calif. – Leaders from the U.S. Army Corps of Engineers (USACE), Sonoma County Water Agency (Sonoma Water), UC San Diego’s Scripps Institution of Oceanography Center of Western Weather and Water Extremes (CW3E) and California Department of Water Resources (DWR) entered a new era in reser…

Oct. 14, 2025 - SANTA ROSA, CA – The Sonoma County Board of Supervisors, acting as the Board of Directors for the Sonoma County Water Agency (Sonoma Water), approved on Tuesday, the renewal of a water supply agreement with the Marin Municipal Water District (Marin Water) for a new 15-year term. The agreement runs through 2040 and includes a one-time $12.5 million payment from Marin Water to suppo…

EDIT - An earlier version of this release stated an incorrect start time of the meeting, it has been corrected to 4 p.m.  August 9, 2025 - GUERNEVILLE, CA – On Wednesday, Aug. 27, at 4 p.m., a group of west Sonoma County residents will meet virtually to continue discussing opportunities for regional wastewater treatment.At its fourth meeting, the West County Water Quality and Recycled Water Suppl…

July 28, 2025 - SANTA ROSA, CA – Visitors to the Sonoma County Fair this year will see a fresh, educational collaboration between the UC Master Gardeners of Sonoma County and the Sonoma-Marin Saving Water Partnership. The two organizations are teaming up for a third year to create an educational demonstration garden in the patio outside the Hall of Flowers at the Sonoma County Fair. The garden, c…

July 10, 2025 - SANTA ROSA, CA – The State Water Resources Control Board issued an order at the end of June to approve temporary urgency change petitions filed by Sonoma Water. The petitions requested that the water supply condition in the Russian River, which sets the minimum instream flow requirements in the Upper and Lower Russian River, be determined based on storage thresholds in Lake Mendoc…

June 3, 2025 - En español abajo - SANTA ROSA, CA — Sonoma Water’s Board of Directors voted on Tuesday to develop a Regional Water Bank Implementation Strategy through an agreement with Jacobs Engineering Group, Inc. The contract, which runs through the end of 2027 will guide planning and coordination to improve long-term water supply reliability across Sonoma and Marin counties. The contract is n…

May 29, 2025 - En español abajo - SANTA ROSA, CA – Sonoma County Water Agency (Sonoma Water) will begin the multi-day process of inflating its rubber dam located in the Russian River near Forestville on Thursday, May 29. The rubber dam is a critical component of the Russian River water supply system that provides naturally filtered drinking water to more than 600,000 residents in portions of Sono…