WASHINGTON STATE DEPARTMENT OF ECOLOGYNOTICE OF PUBLIC COMMENT PERIODAugust 10 – September 10, 2026Tru-Grit Abrasives Inc Cleanup Site1110 E Alexander Ave, Tacoma WACleanup Site ID # 1294, Facility Site ID # 1206878 Draft Interim Action Work Plan, State Environmental Policy Act Determination of Non-significance, and Public Participation Plan are available for public comment. Submit comments online: https://go.ecology.wa.gov/comment1294 Review documents online: https://go.ecology.wa.gov/1294 Review documents in-person: Tacoma Public Library - Main Branch at 1102 Tacoma Avenue South, Tacoma WA 98402. Phone: 253-280-2800 Make an appointment to review documents at Ecology's headquarters at 300 Desmond Dr SE, Lacey. Call 360-407-6365 or email PublicDisclosureSWRO@ecy.wa.gov to make an appointment. Site Background: The Port of Tacoma is proposing an interim action cleanup to dredge and remove contaminated sediment from an area of the Tru-Grit cleanup site. This work must take place before the U.S. Army Corps of Engineers (USACE) deepens the Blair Waterway, planned to occur in 2028. This action will prevent the contaminated material from sliding into the navigation channel during or after the deepening work. The Port will roughly 8,400-12,600 cubic yards of contaminated sediment from two areas of the site. These areas are on the lower slope area of the Blair Waterway that overlaps with the side slopes of the Blair Waterway Deeping project. After cleanup construction, performance monitoring within the dredge areas will confirm that the interim action was successful. After Ecology determines that the contaminated sediment was successfully removed, a cap of clean material, called a "residuals management cover" (RMC), will be placed over the dredged areas. The RMC will have a 6-inch minimum layer of clear material. This cap will help protect the remaining contamination during the USACE deepening project. IPL0364177 Aug 10 2026