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Board of Supervisors Approves $1.3 Billion Upgrade to Southeast Treatment Plant
Unanimous vote allows SFPUC to move forward with plans to rebuild and improve critical operations at the facility
Posted Date: 4/18/2018 11:00 AM

San Francisco, CA— This week, the Board of Supervisors approved $1.3 billion in funding for the San Francisco Public Utilities Commission’s (SFPUC) Biosolids Digester Facilities Project. This much-needed work will rebuild the aging solids handling facilities at the Southeast Treatment Plant in the Bayview. The Board’s decision marks an important milestone needed to move forward with the construction, which is anticipated to start at the end of this year. The San Francisco Planning Commission certified the Project’s Environmental Impact Report (EIR) on March 8. Soon after on March 13, the SFPUC Commission approved the project.

Built in 1952, the Southeast Treatment Plant serves as the City’s largest wastewater facility, treating 80% of the City’s sewage. As part of the Sewer System Improvement Program (SSIP), the Biosolids Digester Facilities Project will:

  • Replace the outdated solids treatment process with modern technology for increased reliability and efficiency
  • Relocate the digesters away from residences and limit odors to within the treatment plant.
  • Improve biosolids treatment quality from Class B to Class A for more beneficial uses.
  • Utilize 100% of biogas and generate heat and power to support the plant 
  • Make visual improvement in and around the plant

The Biosolids Project will be financed through a $625 million low-interest loan from the EPA’s Water Infrastructure and Financing Innovation Act (WIFIA), resulting in significant rate-payer savings, and is the single largest allocation of WIFIA funds in the country.

SSIP is a 20-year, multi-billion dollar investment to upgrade our aging sewer infrastructure and continue ensuring a reliable, sustainable, and seismically safe system. Phase I of SSIP encompasses about 70 projects citywide that range from neighborhood green infrastructure that manage stormwater, to major state-of-the-art upgrades at the City’s wastewater facilities, like the BDFP.