San Francisco Southeast Wastewater Treatment Plant

The San Francisco Southeast Wastewater Treatment Plant is the city's primary wastewater treatment facility, located at 900 7th Street, and serves large portions of San Francisco’s sewer system. The plant processes hundreds of millions of gallons of wastewater daily and has undergone major modernization projects to improve treatment performance, odor control, and energy recovery. It represents mid-20th-century municipal sanitation infrastructure that has been incrementally upgraded to meet contemporary environmental standards.