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Wastewater Treatment Plant Tours

Public, school and group tours at both the Oceanside Treatment Plant and the Southeast Treatment Plant are currently on hold due to increased construction activities.

Due to extensive construction underway at our treatment plants, including the Westside Enhanced Recycled Water Recycling Facility and $2 billion being invested in our Southeast Treatment Plant upgrades, our public tours are on hold to ensure public and worker safety. This work is helping us ensure our aging sewer system can continue to protect public health and the environment now and for generations to come. 


See (but don’t smell) Our System Through a Different Lens

Thanks for your interest in learning more about our amazing combined sewer system and wastewater treatment plants. We’ve placed a variety of information below to help give you a flavor of what our facilities look like, how our system operates, a few of the people working behind the scenes, and the amazing history that begins around the time of the 1849 Gold Rush!





Discover what we call the "city under the City" Part 1 and 2.
See how the Southeast Treatment Plant is transforming into a modern resource recovery center.



Gather your family together to learn about our system.
Join a 5th Grade class on a tour and learn about our Urban Water Cycle.
Did you know the San Francisco sewer has its own rap song?



Hear about a typical day from one of our very own, Megan Abadie.
Tag along for a ride with one of our sewer cleaning crews.
Watch how Froilan and Manny keep catch basins and storm drains clear.


More Resources About Our Combined Sewer System!





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Last updated: 6/12/2019 2:42:02 PM