Skip to page body Home Customer Service How To Environment Projects & Programs About Us

Construction at the Southeast Treatment Plant

Email Updates Click the button to the left and select "Southeast Construction Updates" to receive email updates.

Welcome to the new Southeast Treatment Plant (SEP) construction web page. You asked to have up-to-the-minute information on what the SFPUC is doing in your neighborhood. We heard you! We want to make sure you are prepared for our construction activities.

    Southeast Treatment Plant Construction
    • Short duration, temporary lane closures on Evans Avenue will occur as crews relocate large equipment currently staged along Evans. Expect increased traffic during these operations.
    • Crews continue to work extended hours to complete critical work before the start of the rainy season. 

    Related SFPUC Project Updates
    • Crews continue work in Islais Creek to install a temporary bypass pipe. 


    Our site is undergoing updates and our interactive map is not currently available. Sorry for the inconvenience, please call or email with questions.


    At Work in Your Neighborhood: Southeast Update 2019 (Spanish Chinese)


    (415) 551-4737

    Visit Us

    Monday & Friday
    1800 Oakdale Ave


    Islais Creek
     - Spanish
     - Chinese




    At Work in Your Neighborhood

    Built in 1952, the Southeast Treatment Plant (SEP) treats 80% of the City’s wastewater, but many of the plant’s facilities need to be upgraded or replaced. The Sewer System Improvement Program (SSIP) projects at the SEP focus on making the plant smell better, look better, operate more efficiently, and protect our critical equipment in the event of an earthquake.

    SSIP projects at the Southeast Treatment Plant will accelerate the SFPUC’s vision to transform San Francisco’s largest wastewater treatment plant into a state-of-the-art resource recovery facility, a City destination, a proud neighborhood asset and an attractive workplace. To learn more about the Sewer System Improvement Program, click here.

    For construction impacts and notices nearby SEP, sign up for email updates. For information about other construction projects across the City, visit our Construction in Your Neighborhood Map or

    SEP Construction Digsters 2
     Jobs and Resources

    To learn more about the Headworks Facility Project, view our recent SEP Construction Business Briefing, read our fact sheet available in English, Spanish and Chinese, or visit our project website.

    Last updated: 9/5/2019 3:04:53 PM