Section 401 Water Quality Certification Public Notice
Fairfield-Suisun Sewer District Suisun Force Main Reliability Project
The San Francisco Regional Water Quality Control Board is currently reviewing an application for the following project for water quality certification under Section 401 of the Clean Water Act. We encourage public comments on the proposed work, which will be considered in the decision on certification. You may submit comments on this project to the staff member below.
| Project Name: |
Fairfield-Suisun Sewer District Suisun Force Main Reliability Project |
| City/County: |
Fairfield, Suisun, Solano County |
| Comment Period: |
3/28/2026 - 04/17/2026 |
| Project Description: |
The original 3.5 mile pipeline of the existing Suisun Force Main was constructed in 1974 out of steel pipe and concrete cylinder pipe. It conveys wastewater flow from Suisun City, eastern Fairfield, and Travis Air Force Base, representing approximately 40 percent of the total flow collected and treated by Fairfield-Suisun Sewer District (FSSD). This original pipeline remains the only means of conveyance between Suisun Pump Station and Central Pump and it is nearing the end of its expected service life and approaching its hydraulic capacity during storm events. The overall purpose of the proposed project is to construct new approximately 1.5 mile, parallel force main between Suisun Pump Station and Central Pump Station to create a fully redundant connection between Suisun Pump Station and the wastewater treatment plant, which will increase the reliability of FSSD’s wastewater collection service through reducing the risks associated with the existing 50-year-old pipeline, and allowing for planned outages to inspect, clean, repair, rehabilitate, and/or replace aging portions of the existing pipeline in the future. |
| Project Files: |
Contact Staff for files |
| Staff Contact: |
Alicia Pisani (510) 622-2318 Water Quality Control Board 1515 Clay Street, Ste 1400 Oakland, CA 94612 |
