Registration is required for all tours: To sign up, please click the "Register Here" link for your selected tour.
The tours have limited capacity and space is available on a first-come, first-served basis.
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Explore one of Sonoma Water’s wastewater treatment facilities, including the lab monitoring millions of live protozoa and microorganisms essential for cleaning and recycling wastewater.
Coming Soon!
Do you know where your water comes from? Join us and visit facilities that divert, pump and treat the water delivered by Sonoma Water to more than 600,000 residents in portions of Sonoma and Marin counties.