Construction

King County will invest more than $500 million in clean-water infrastructure in 2009 to protect public health, maintain quality of life, and support broad regional environmental and economic goals, such as protecting Puget Sound and creating jobs.

Projects under way include expanding, upgrading and replacing aging pipelines and pump stations and building new facilities such as the Brightwater treatment system to meet growing service demands over the next several decades. Other clean-water projects include controlling combined sewer overflows, cleaning up contaminated sediment in the Duwamish Waterway, and investing in technologies to take the “waste” out of wastewater by creating valuable resources such as energy, reclaimed water and biosolids from treatment process byproducts.

King County is carrying out these projects as part of the Regional Wastewater Services Plan, a 30-year comprehensive plan adopted by the King County Council in 1999 to ensure the regional sewer system keeps pace with growth and continues meeting regulatory requirements.

• North King County/South Snohomish
• Seattle
• East King County 
• South King County 
• Regionwide 
• Recently completed projects