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Explore SF’s Wastewater Cleaning Process: Free Tours (May-Oct)

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Friday, May 8, 2026 - 10:00 am to 12:00 pm | Cost: FREE*
*Registration is required to reserve a spot

Southeast Wastewater Treatment Plant | 750 Phelps St, San Francisco, CA

Event Details

Have you ever wondered what happens to the dirty water from your shower, laundry, and toilet after it goes down the drain? What about water that flows into storm drains from rain, watering lawns, and washing cars? Find out by taking a free tour of the Southeast Wastewater Treatment Plant. You’ll go behind the scenes to see (and smell!) how this vital infrastructure works. We offer tours for individuals as well as schools or groups on a first-come, first-served basis May through October. Sign up at sfpuc.gov/wastewater-plant-tour.

Disclaimer: Please double check event information with the event organizer as events can be canceled, details can change after they are added to our calendar, and errors do occur.


Cost: FREE*
*Registration is required to reserve a spot
Categories: *Top Pick*, In Person, Walks & Tours
Address: 750 Phelps St, San Francisco, CA