We regulate the wastewater treatment plants that produce biosolids and the businesses that apply biosolids for farmers, including how this material is treated, tested, and used.
Contact information
For statewide policy and technical issues, and out-of-state, federal and other agency inquiries:
Kyle Dorsey
State Biosolids Program Coordinator
kyle.dorsey@ecy.wa.gov
360-407-6559
Ecology regional biosolids staff:
Betty Ann Bickner
Regional Biosolids Program Coordinator
Biosolids and septage permits and related issues for these Eastern Region counties: Grant, Ferry, Lincoln, Pend Oreille, Spokane, Stevens
bettyann.bickner@ecy.wa.gov
509-329-3505
Terri Costello
Regional Biosolids Program Coordinator
Biosolids and septage permits and related issues for these Eastern Region counties: Adams, Asotin, Columbia, Garfield, Franklin, Walla Walla, and Whitman
Septage permits and related issues for these Central Region counties: Chelan, Douglas, Okanogan
terri.costello@ecy.wa.gov
509-329-3579
Canming Xiao
Regional Biosolids Program Coordinator
Septage permits and related issues for these Central Region counties: Benton, Kittitas, Klickitat, Yakima
canming.xiao@ecy.wa.gov
509-575-2842
Peter Severtson
Regional Biosolids Program Coordinator
Biosolids (non-septage) permits and related issues in the Central Region
peter.severtson@ecy.wa.gov
509-397-4737
Amber Corfman
Regional Biosolids Program Coordinator
Biosolids and septage permits and related issues in the Northwest Region
amber.corfman@ecy.wa.gov
360-255-4406
Kelsey Dunne
Regional Biosolids Program Coordinator
Biosolids and septage permits and related issues in the Southwest Region
kelsey.dunne@ecy.wa.gov
360-407-6055
Meeta Pannu
Regional Biosolids Program Coordinator
Biosolids and septage permits and related issues in the Southwest Region
meeta.pannu@ecy.wa.gov
360-407-6393