Wastewater Treatment Plant Tours

You will see firsthand how we clean wastewater to protect public health and our environment. Learn about San Francisco’s combined sewer system, the wastewater treatment process, and what you can do to help protect the San Francisco Bay and the Pacific Ocean. We look forward to seeing you!

All tours are currently full. Please check this page for future tour dates.

July 18, 2025 (Tour Full)

August 22, 2025 (Tour Full)

September 19, 2025 (Tour Full)

Safety Information
The treatment plant is a functioning industrial site operating 24 hours a day, seven days a week. Hard hats and safety vests are provided and must be worn at all times. In the event of rain or emergency, tours may be modified or cancelled due to safety concerns.

Dress Code
Sturdy, closed-toed shoes (no sneakers) and socks and long pants and long-sleeved shirts are required for your safety and comfort. NO flip-flops, sandals, open-toed shoes, shorts, skirts, or tank tops.

If you are not wearing the appropriate attire, you may be prohibited from taking the tour. 

Visitors over 18 years of age must present a valid photo ID on the day of the tour. All tour participants must be 12 years or older. Minors need to be accompanied with an adult.

Please download, review, fill out and sign the Assumption of Risk, Release of Liability, Hold Harmless, and Release of Publicity Rights Agreement (fillable PDF)  and send to us via email at wastewatertour@sfwater.org by the latest 24 hours in advance of the tour. Failure to submit will prohibit you from taking the tour.