Kent-Auburn conveyance system improvement
New regional wastewater facilities to serve the growing population As part of its mission to protect public health and the environment, King County is responsible for conveying and treating wastewater collected within the county's service area. King County is committed to upgrading and improving regional wastewater facilities to serve the growing population. The county provides capacity to support planned growth, consistent with the Washington State Growth Management Act (external link).
Purpose of the project Wastewater from south King County is collected by local cities and sewer districts, including the cities of Kent, Auburn, Algona and Pacific. King County collects sewage from these local jurisdictions and conveys it to the county's South Treatment Plant in Renton. The population in the south portion of the service area is growing rapidly. Because of capacity limitations in its existing pipelines (called interceptors and trunks), King County needs to provide additional capacity in the near future. Constructed improvements will provide capacity to handle the 20-year peak flows through the year 2050. The new pipelines will provide service and operational flexibility to handle population growth in south King County. Project Status King County has selected preferred alignments for the new pipelines and is moving into final design for the Phase A projects (Stuck River Trunk and Kent East Hill Diversion). In final design, these alignments are being more thoroughly analyzed, and the county will focus on environmental review, permit application, and preparing construction bid documents. Construction of these new pipelines has been delayed due to budget constraints. Originally scheduled to begin in 2010 and completed by 2011, construction is now planned to begin in 2012 and be completed by 2013. These projects remain a priority for King County and could be resumed prior to 2012 if sufficient funds become available. The Phase B projects (Pacific Pump Station Discharge and Auburn West Interceptor Parallel) are also moving forward in the design process at a reduced pace, with construction presently anticipated to start in 2014. View the project overview page for the anticipated schedule. |
