An aging Guerneville treatment plant is behind January wastewater spill
Anna Armstrong, PRESS DEMOCRAT
An estimated 5.5 million gallons of wastewater, including untreated sewage, overflowed early this month from a Guerneville treatment plant into the lower Russian River over three days, making for the largest such spill in the river in more than four decades.
Despite the absence of major flooding, a series of heavy storms managed to inundate the intake system of the aging Neeley Road wastewater plant that has been linked to a series of weather-related spills over the years. The fallout led water and public health officials to issue advisories closing beaches along more than 13 miles of the lower river and a 40-mile stretch of the Sonoma Coast.
The last of those closures wouldn’t be lifted until the beginning of the following workweek, after days of testing to determine the water was safe for contact.
State water quality regulators in Santa Rosa say they are looking into the spill and will determine if any enforcement action is warranted, including potentially a fine.
Read more at https://www.pressdemocrat.com/2026/01/17/russian-river-sewage-spill-guerneville-plant-sonoma-county/