Washington State Department of Ecology Public Notice for State Environmental
Policy Act
February 27, 2026
The Washington State Department of Ecology seeks comments on a State Environmental Policy Act Determination of Nonsignificance issued under WAC 197-11-340(2). This determination is for Sedron Technologies Biosolids R&D Facility's Application for coverage under the Statewide General Permit for Biosolids Management.
Proposal: Sedron Technologies Biosolids R&D Facility is seeking coverage under the Statewide General Permit for Biosolids Management. A facility will be installed at an existing industrial complex to conduct small batch testing on biosolids from local municipalities. The biosolids materials will be returned to a permitted facility at the end of testing. No new construction or earthworks will be required to implement the facility.
Location: at 500 Metcalf St. Sedro-Woolley, WA 98284
Applicant/Proponent: Sedron Technologies Biosolids R&D Facility
Lead Ag