Loop® vehicle maintenance facility
Wastewater Treatment Division (WTD) operations and projects
WTD operations staff remain on the job 24/7 to ensure the region’s wastewater treatment service continues. More information on how to report a problem you believe may be related to the County’s wastewater treatment system is available here: https://www.kingcounty.gov/depts/dnrp/wtd/response.aspx
The King County Wastewater Treatment Division remains committed to sharing information and gathering feedback from community members about its work and projects. WTD staff remain available to answer questions via email and phone during regular business hours. Project information lines remain available and are being monitored for ongoing construction projects.
Wondering what the new facility will look like? Here is our current rendering :
King County began the process to obtain construction permits. Permitting may take longer than originally anticipated. A new completion date will be updated as soon as we know more.
What is the Loop Vehicle Maintenance Facility Project?
King County Wastewater Treatment Division (WTD) is designing a new vehicle maintenance and staging facility for transporting Loop biosolids. The new facility will be located in North Bend (exit 34 off I-90) on County-owned land.
Why is King County building this facility?
- The current vehicle facility is located in south Seattle, on a space leased from the King County Airport. The lease on this land is now ending without the option to renew, requiring WTD to relocate the facility.
- Helps meet new federal regulations that limit the time a driver can be on the road.
- This facility reduces driving time and improves safety for every traveler on our highways and roads.
What are Loop biosolids?
Loop biosolids are a nutrient-rich soil amendment created from King County wastewater. As it has for 40 years, the County produces Loop from solids extracted during the wastewater treatment process. Loop is used on farms and forests by commercial growers in both Eastern and Western Washington.
Learn more about Loop biosolids at:
Contact Eunice Lee at:firstname.lastname@example.org
Construction is expected to begin in 2021.
Fall 2016 – Winter 2016
Winter 2016 – Winter 2018
Working with the community
King County will work with the public, community groups, and other key stakeholders to provide project information, identify potential impacts, and involve the community during construction where possible.
Community members can expect:
- Advanced notice of meetings and construction
- Community group and neighbor briefings
- Project newsletters and fliers
- Project web page updates, including frequently asked questions
- Construction hotline