San Francisco, California Streamline Drywall supported the Biosolids Digester Facilities Project (BDFP) at San Francisco’s Southeast Treatment Plant, a critical public infrastructure project advancing the City’s long-term goals for wastewater resilience, environmental stewardship, and sustainable operations. The project is delivered by the MWH Constructors / Webcor Builders Joint Venture on behalf of the San Francisco Public Utilities Commission. The Biosolids Digester Facilities Project is a key component of San Francisco’s wastewater treatment modernization program, designed to upgrade aging infrastructure while maintaining continuous plant operations. Executed within an active treatment facility containing extensive above- and below-grade utilities, the project requires exceptional coordination, safety planning, and precision to protect essential systems that serve the city every day. Operating within a live wastewater treatment environment, Streamline delivered underground civil and utility support work under highly coordinated, schedule-driven conditions where safety, reliability, and environmental controls were paramount. All work was performed while maintaining uninterrupted treatment operations and complying with strict regulatory and environmental requirements.
Yard Piping Package T-33.04 – Facility 615 Laterals: Supported the installation of underground civil utilities and inground yard services adjacent to Facility 615, including sanitary sewer, storm water, fire water, potable water, and process mechanical piping systems. Scope included shoring, excavation, dewatering, spoils handling, hazardous soil off-hauling, pipe encasement concrete, reinforcing steel, backfill, and tie-ins to existing infrastructure within an active operating facility.
The Biosolids Digester Facilities Project strengthens San Francisco’s wastewater treatment system, improving long-term operational reliability, environmental performance, and regulatory compliance. Streamline’s contributions supported the project’s demanding quality and safety standards while reinforcing the City’s investment in resilient public infrastructure critical to public health and environmental protection.
As a project financed in part through federal and state funding programs administered by the United States Environmental Protection Agency, the BDFP reflects San Francisco’s commitment to responsible stewardship of public resources and sustainable infrastructure development.
As a certified local business enterprise, Streamline is proud to have participated in a project that reflects San Francisco’s values of inclusive economic participation, workforce development, and long-term civic investment-delivering infrastructure that serves both the City and the communities that depend on it.
