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Cedar Hills Regional Landfill at sunset


The King County Solid Waste Division (SWD) operates one landfill and maintains several closed landfills.

 Cedar Hills Regional Landfill community meeting

Wednesday, March 29, 6:30-8:30 p.m
Join us for an in-person meeting with the King County Solid Waste Division and Bio Energy Washington at Maywood Middle Schoolexternal link in Renton. Bring your questions and learn about the latest activities at the County’s regional landfill gas-to-energy facility. Interpreters and accommodations for people with disabilities provided when requested at least one week in advance of the meeting. Please call 206-477-4466 or 711 TTY Relay to make a request.

Cedar Hills Regional Landfill

Cedar Hills Regional Landfill is closed to the general public. Waste collected at the transfer stations is transported to the Cedar Hills Regional Landfill for disposal.

Cedar Hills Regional Landfill community meetings

Since March 1986, area residents and Solid Waste Division staff have met to discuss conditions and activities at the Cedar Hills Regional Landfill.

Cedar Hills Regional Landfill 2020 site development plan and facilities relocation

The King County Solid Waste Division is developing alternatives to maximize the capacity of the Cedar Hills Regional Landfill to meet the county’s disposal needs.

Closed landfills

SWD maintains custodial responsibilities for ten landfills located throughout King County.

Landfill gas–to–energy facility

The King County Solid Waste Division contracts with renewable energy company INGENCO – doing business as Bio Energy (Washington) LLC, (BEW) – to generate renewable energy from landfill gas produced by decomposing organic material at the Cedar Hills Regional Landfill.

Landfill gas pipeline upgrade project

SWD is proposing a second conveyance pipeline to carry landfill gas from the flare station to the gas-to-energy plant for processing.

King County Solid Waste Division mission: Waste Prevention, Resource Recovery, Waste Disposal

Contact Us

 Call: 206-477-4466

TTY Relay: 711