From planning our entire conveyance system to remediating sediment contamination near county outfalls for combined sewer overflows, these programs cover a wide range of services and provide the detailed planning and study necessary to design, build and upgrade our treatment system.
Resource recovery Resources from wastewater provide us with healthy crops, renewable energy, green sports fields, lush gardens, robust forests, and vibrant wetlands - all nourished with King County's recycled resources.
Biosolids recycling King County's program is used as a model throughout the nation and has won many awards for its innovative and environmentally sensitive operations.
Energy recovery Information about recovering energy from the wastewater treatment process, including the fuel cell demonstration pilot project.
Reclaimed water The Regional Wastewater Services Plan calls for the county to pursue and explore opportunities for expanded water reuse at the county's existing treatment facilities. The policies also call for the county to explore water reuse opportunities at all new treatment facilities.
Technology assessment Learn about new technologies, assessment of existing and new wastewater treatment processes, laboratory research, pilot studies and demonstration-scale equipment testing.
Conveyance System Improvement (CSI) Program
This is an array of more than 250 miles of pipes and 42 pump stations that moves wastewater from local communities to the treatment plants. The program focuses on upgrading and improving the existing regional conveyance system as well as planning for future conveyance extensions.
Duwamish Waterway Programs
This portal page describes King County programs to improve water quality and sediments in the Lower Duwamish Waterway.
Environmental planning (environmental documents for public review)
This program ensures that the Wastewater Treatment Division complies with the state and federal Environmental Policy Acts and the federal Endangered Species Act.
Grant funding is available for air or water quality improvement projects, environmental education and community outreach efforts with the Duwamish River Valley.
Industrial Waste Program
Designed to prevent businesses from discharging substances that can degrade the wastewater treatment process, harm workers or facilities, or affect surface-water quality.
King County supports a Duwamish River cleanup that will protect people’s health, safeguard 100,000 family-wage industrial jobs and ensure environmental justice for those who live and work nearby.
Rainwise rebates (external link)
The RainWise program offers rebates for rain gardens and cisterns for eligible Seattle homeowners. This program is partnership between King County and Seattle Public Utilities.