Have you ever wondered what happens to the dirty water from your shower, laundry and toilet after it goes down the drain? What about the runoff from lawns and gardens, and rainwater and car washing?
Free Tours for Professional Groups
Tours Fill Up Fast. Sign Up Now!
We offer FREE tours for San Francisco residents two Saturdays each month at 10 AM. Tours are offered at both the Oceanside Wastewater Treatment Plant and the Southeast Wastewater Treatment Plant. Sign up at our eventbrite page for an upcoming tour!
We also offer tours for professional groups and industry-specific visitors on an appointment-only and case-by-case basis, at our Southeast Treatment Plant in the Bayview, usually Mondays, Wednesdays and Fridays in the months of February to October, starting either at 10:00am or 1:00pm. To sign up, please submit a Group Tour Request Form, preferably two weeks in advance. We do not offer professional tours at Oceanside Treatment Plant.
Free Tours for School Groups
San Francisco public and private school students in the 4th grade and at least 9 years old can take a free tour too! School tours are offered on Wednesdays and Fridays at 10:00am or 1:00p.m. Tours are held at our Southeast Treatment Plant in the Bayview. Check out this cool video about our K-12 tours to learn more!
For grades 4-7, we require chaperones at a 1:5 ratio. For grades 8 and up, we require chaperones at a 1:8 ratio.
To sign up, please submit a School Tour Request Form at least two weeks in advance.
Catch a Ride on Us
We are currently offering free bus transportation for San Francisco public school groups. If you are interested, please fill out the School Bus Requisition Form and return to the SF Unified School District so they can work with you to book your bus.
- Tours take two hours to complete.
- Available for groups of up to 30 people.
- Attendees over 18 years of age must present a valid photo ID on the day of the tour.
Treatment plants are functioning industrial sites in operation 24-hours a day, seven days a week. Hard hats are provided and must be worn at all times while on tour. Sturdy closed shoes and socks, long pants or long skirts are required for both your safety and comfort. NO flip-flops, sandals, clogs, open toed shoes, shorts, or skirts. If you are not wearing the appropriate attire you may be prohibited from taking the tour.
While these tours involve quite a bit of walking, climbing of stairs, and going underground in tight hallways and tunnels, we can change the route to accommodate wheel chairs, canes and walkers. We have no facilities for, and cannot accommodate young children, infants, or strollers.
Oceanside Water Pollution
Oceanside Treatment Plant
- Located in San Francisco’s Outer Sunset District at 3500 Great Highway, 94132
- Tours for SF residents are available one Saturday each month. Sign up for a resident tour.
Southeast Water Pollution
Southeast Treatment Plant
- Located in San Francisco’s Bayview District, 750 Phelps Street, 94124
- Tours of the Southeast Treatment Plant for SF residents are available one Saturday each month, from May through October. Sign up for a resident tour.
- Tours for groups and schools are available upon request on Mondays, Wednesdays and Fridays in the months of February to October.
- Sign up for a group or school tour.
Please be advised that due to security issues we reserve the right to refuse anyone from taking part in a tour. We also reserve the right to cancel tours in the event of a Plant or City emergency.
Phone: (415) 695-7375
Fax: (415) 695-7377