Port Gardner Storage Facility
The former Kimberly Clark industrial wastewater treatment plant (KC WWTP) was acquired by the City of Everett with the intent that the site be repurposed to provide detention of urban stormwater and combined sewer flows to bring Puget Sound Outfalls (PSOs) 4 through 7 into regulatory compliance. The existing KC WWTP will be integrated into the City’s wastewater system by converting the site infrastructure into a combined sewage storage facility and constructing new sewers to convey wastewater to and from the facility. The new facility, named the Port Gardner Storage Facility (PGSF), will be used to temporarily store combined sewer flows until the collection system has the available capacity to convey flows to the Everett Water Pollution Control Facility (WPCF).
Phase 1 of the project, completed May 2021, included hydrologic and hydraulic analysis of the sewershed area that will convey combined sewer flows to PGSF and a sitewide PGSF facilities plan. Following completion of Phase 1, conveyance improvement projects and the PGSF site improvement project were separated for more efficient project management and completion.
Phase 2 of the PGSF site improvement project includes engineering analysis and design efforts required to attain regulatory approval and produce full construction ready documents. Phase 2 also includes selected demolition of dilapidated site infrastructure in preparation for future Phase 3 site construction activities.
Based on recommendations by several engineering consultants, the former Kimberly Clark industrial wastewater treatment plant could be repurposed to provide detention and treatment of urban stormwater and combined sewer flows. Use of this facility for combined sewer overflow (CSO) control was presented to Ecology in the 2014 CSO Control Plan Update as the preferred option for controlling CSO’s from PSOs 4 – 7 with a deadline of 2027 to be operational. Other options were considered but found to be more expensive and lacking many of the functional benefits of the PGSF.
The PGSF site is adjacent to West Marine View Drive at 22nd St. Refer to the following image from the Port Gardner Storage Facility Engineering Report (HDR/BC, 2021) for visual representation of the site. This report can be found in the Related Documents section on this webpage.
Design: 2022 – 2024
Selected Site Demolition: 2023 – 2024
Construction: 2024 - 2027