Submit your request for a contained-in determination by letter or by email. Address your request to the Hazardous Waste and Toxics Reduction regional contact (below). It may require up to two weeks to review and respond to your request.
Central Regional Office
Counties: Benton, Chelan, Douglas, Kittitas, Klickitat, Okanogan, and Yakima
Eastern Regional Office
Counties: Island, King, Kitsap, San Jaun, Skagit, Snohomish, and Whatcom
Northwest Regional Office
Counties: Island, King, Kitsap, San Juan, Skagit, Snohomish, and Whatcom
Southwest Regional Office
Counties: Clallam, Clark, Cowlitz, Grays Harbor, Jefferson, Mason, Lewis, Pacific, Pierce, Skamania, Thurston, and Wahkiakum