List of New Construction Projects

Requests for Public Comment

Requests for a public comment period on a permit application must be submitted within 15 days of its posting.

Submit a written request to the Clean Air Agency via:

  • Email: Refer to contact on the permit application
  • Fax: 206-343-7522
  • Postal Mail

Visit our FAQ page to find answers to common questions about our permitting process.

New Construction Projects

Company Address Project Description Date Posted Contact Engineer
Group14 Technologies, LLC 8502 Maltby Rd, Woodinville, WA 98072 Addition of control Ground flare. Also edit of conditions for clarity. 1/29/26 Carl Slimp
Hampton Lumber Mills-Washington Inc 46921 288th NE Sauk Prairie Rd, Darrington, WA 98241 Modification of facility-wide methanol emission limit, modification of the way the facility shows compliance with a hydrogen chloride emission limit on an existing wood-fired boiler, correction to averaging times for hydrogen chloride and particulate matter emission limits, and requested changes to the averaging time for dry kiln temperature monitoring. The application requests do not include any new equipment nor any proposed changes to operation at the existing lumber mill. 2/9/26 Madeline McFerran
Costco Wholesale #110 1801 10th Ave NW, Issaquah, WA 98027 Installation of new equipment at an existing gas station to replace current equipment. New equipment includes: four 40,000 gallon gasoline storage tanks, one 3,400 gallon gasoline additive tank, 25 dispensers with 50 nozzles equipped with Stage 2 vapor recovery equipment, and installation of one arid permeator vapor processor. 2/9/26 Madeline McFerran