Cedar Hills Regional LF

As of 2022, Cedar Hills Regional LF has approximately 44,692,721 tons of waste in place. The total permitted design capacity of the facility is 66,150,000 tons, meaning the site is currently at approximately 68% of its total design capacity. The facility accepts approximately 886,449 tons of waste per year based on the most recent annual data. At the current rate of fill, the facility is projected to reach capacity and close around 2046.

Cedar Hills Regional LF has an LFG energy project with a current status of 'Shutdown'. The project type is Vehicle Fuel. The facility generates approximately 13.4 mmscfd of landfill gas. Landfill gas recovery projects capture methane that would otherwise be released into the atmosphere, reducing greenhouse gas emissions and in many cases generating electricity or other usable energy.

Cedar Hills Regional LF is located at 228th Ave SE, Maple Valley, WA 98038, USA, 98038. The facility is situated in King County, Washington. Use the map on this page or enter the address into Google Maps or Apple Maps for turn-by-turn navigation. Call ahead at (206) 477-4466 for access instructions or gate codes if required.

Cedar Hills Regional LF is operated by King County Solid Waste Division, WA. It is classified as a public landfill, serving the residents and businesses of Maple Valley, King, Washington. For questions about billing, hours, or accepted materials, contact King County Solid Waste Division, WA directly at (206) 477-4466. The facility website is available at https://kingcounty.gov/en/dept/dnrp/waste-services/garbage-recycling-compost/solid-waste-facilities/cedar-hills.

Cedar Hills Regional LF currently covers approximately 430.9 acres with a depth of approximately 200 feet. The facility opened in 1965 and has been in continuous operation since then. The design specifications call for a total area of 450 acres. The size of a landfill reflects both its operational history and the volume of waste it has processed over its lifetime of service to the surrounding community.

Cedar Hills Regional LF has an active landfill gas (LFG) collection system in place. The facility generates approximately 13.4 million standard cubic feet per day (mmscfd) of landfill gas. Of that, approximately 11.0 mmscfd is collected by the system. The gas contains approximately 49.9% methane, which can be captured for energy generation. The facility operates 829 gas collection wells. Flares are in place at this facility. LFG collection reduces greenhouse gas emissions and, in some cases, generates renewable energy for the grid.

Cedar Hills Regional LF participates in the following environmental programs: composting services are available at this facility; an LFG energy project with status 'Shutdown' is associated with this site. These initiatives help reduce the environmental footprint of landfill operations by capturing resources, reducing greenhouse gas emissions, and diverting material from direct disposal. Contact the facility or its operator for more details on current environmental compliance status.

To contact Cedar Hills Regional LF, call (206) 477-4466. The facility website is https://kingcounty.gov/en/dept/dnrp/waste-services/garbage-recycling-compost/solid-waste-facilities/cedar-hills. The mailing address is 228th Ave SE, Maple Valley, WA 98038, USA. The directory information shown on this page is sourced from the EPA Greenhouse Gas Reporting Program (GHGRP) and the USDA Agricultural Marketing Service, last verified as of data year 2022. Data freshness status: Current. If you are the facility owner or operator and need to update this listing, use the claim listing option on this page.