Tumwater City staff is proposing six new projects as part of the drinking water, sanitary sewer, and storm drain components of the upcoming 2024-2029 Capital Facilities Plan (CFP).
Water Resources Director Dan Smith informed the Public Works Committee on Thursday, July 20, about these additions.
As part of the drinking water component, the city wants to construct infrastructure securing Well #15, the city’s second largest drinking water producing well. The city is looking to improve security and auxiliary power, as well as install corrosion treatment facilities for the site.
The design and construction of the project won’t start until 2025. Funding for the project would be $760,000, which would come from the city’s operating income and another $190,000, which would come from water connection fees.
Tumwater is also looking to conduct a seismic resiliency study to identify vulnerabilities should a large seismic event affect the water and sewer utilities. The study would inform an implementation strategy that identifies recommendations for mitigating risks.
City staff aims to conduct the study by 2024. The study is both part of the Water and Sanitary Sewer CFP, with the latter contributing more towards the funding of the project. The study is projected to cost $320,000.
Other than the study, the only other addition to the sanitary sewer components of the CFP is the upgrade of the Kimmee Street lift station, which conveys wastewater from lower elevations to higher ground, which would account for projected deficiencies as the population continues to grow.
Construction of the upgrades is not expected until 2026. City staff is expecting that the project would cost $717,500, which would be equally funded through the city’s operating income and sewer connection fees.
There are three additions to the storm drain component of the CFP. First is the acquisition of conservation land as required by some stormwater-related projects. City staff is considering buying former Brewery properties, the Kirsop-area wetlands, and Deschutes wetlands as part of the project.
The city is looking to spend $125,000 yearly from 2024 to 2028 to purchase these lands.
Later down the line is the 2028 stormwater management plan update, which is required as part of the city’s National Pollutant Discharge Elimination System (NPDES) permit.
City staff also included the retrofitting of the outfall at E Dennis Street. Runoff from the street currently discharges untreated to unnamed tributaries of the Deschutes River. The design of the project is not scheduled until 2028, while construction is not expected until the next year.
Smith clarified that the CFP is not a commitment to any of the projects and that it is merely a forecast to see if the city has sufficient funding and staffing to accomplish its projects.
The CFP is updated every two years. It is also part of the city’s new comprehensive plan update, which the city council will vote on later this fall.
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