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Construction at the Southeast Treatment Plant

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 Look-Ahead
  • Starting Monday, June 3rd, the contractor will begin their third phase of the extended construction work hours at the SEP. This work is scheduled to continue for two months—weather and conditions permitting.
  • Starting in early June, the contractor will begin work to demo the old Headworks building. This is a process that will take several months to complete. Intermediate construction noise and vibrations may be noticeable outside the work zone.
Construction Updates

At Work in Your Neighborhood: Southeast Update 2019


(415) 551-4737

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Monday & Friday
1800 Oakdale Ave


Islais Creek
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2018 Milestones

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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 start 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: 5/30/2019 9:18:05 AM