Edmonton, Alberta-based construction firm PCL Construction and engineering company Stantec have won a $121 million fixed price design-build contract for the Southeast Treatment Plant Biogas Utilization Project in San Francisco, according to a Jan. 23 news release from PCL.
PCL, whose U.S. headquarters are in Denver, expects to complete construction of the project in early 2027, per the release. Stantec, also based in Edmonton, is acting as lead designer on the build, and is underway with the full-scale design of the facility.
The project will treat the biogas, generated as a byproduct of wastewater treatment at the Southeast Treatment Plant, in the new digesters to transform it to renewable natural gas quality for injection into the nearby Pacific Gas and Electric gas pipeline, per the release.
PCL said the project would reduce emissions and support the city’s renewable energy goals. The system consists of state-of-the-art gas conditioning and separation processes, which will prepare the renewable natural gas for injection into the existing gas pipeline.
The plant, which is the city’s largest wastewater treatment facility, handles about 80% of San Francisco’s combined stormwater and wastewater and treats an average of 57 million gallons of wastewater per day, according to PCL.
“We’re excited once again to collaborate with the San Francisco Public Utilities Commission and Stantec on a project that not only advances sustainability but also delivers long-term value to the community,” said Richard Hewitt, PCL’s vice president and district manager for its Civil Infrastructure division, in the release.
