Southeast Water Pollution Control Plant Biosolids Digester Facilities Project

Replacing Aging Infrastructure with Modern Technology in the Bayview-Hunters Point Area of San Francisco

Key Statistics


San Francisco. CA


San Francisco Public Utilities Commission


400,000 square feet

5 levels above grade, 4 levels below

23 buildings

LEED Certification:


Delivery Model:



San Francisco Public Utilities Commission

Built to replace the original aging facility built in 1952, the Southeast Treatment Plant (SEP) is located in the Bayview-Hunters Point community and treats 80% of the San Francisco’s wastewater. After several years of planning and engagement with the community, the Sewer System Improvement program (SSIP) has been developed to address the long-standing issues of odors and seismic vulnerability, as well as other operational challenges related to the aging solids handling facilities at the SEP.

Image credit: MWA Architects

On March 13, 2018, the SFPUC Commission approved the Biosolids Digester Facilities Project (BDFP) which will replace and relocate the outdated existing solids treatment facilities with more reliable, efficient, and modern technologies and facilities that will help transform the plant into a modern resource recovery facility, a City destination, a proud neighborhood asset, and an attractive workplace. In addition, the project will locate the new digesters farther away from existing residences, reduce odors, make visual improvements in and around the plant, and allow us to meet our Levels of Service goals.


Construction is what we do best - it’s no surprise that we live and breathe every aspect of construction.

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