PUBLIC NOTICE WASHINGTON STATE DEPARTMENT OF ECOLOGY APPLICATION FOR COVERAGE UNDER NPDES AND STATE WASTE DISCHARGE PERMITS PUBLIC COMMENT PERIOD June 24, 2026, to July 24, 2026 WA State Department of Ecology, TCP-SWRO, PO Box 47775 Olympia, WA 98504, is seeking coverage under the Washington State Department of Ecology's Construction Stormwater NPDES and State Waste Discharge General Permit. The proposed project, Tacoma Smelter Plume Residential Yard Program Group 18 SA/TAC, is located at Multiple Private Properties in Tacoma, Pierce County, Washington: 4206 N Frace Avenue, 4202 N Frace Avenue, 3838 N Whitman Street, 3828 N Whitman Street, 3563 N Whitman Street, 3723 N Frace Avenue, 6430 View Ridge Drive, 4809 N Frace Avenue, 4817 N Vassault Street, 4827 N Defiance Street, 4601 N Frace Avenue, 4654 N Darien Drive, 6408 N 48th Street, 4630 N Defiance Street, 4601 N Bristol Street, 4607 N Bristol Street, 4617 N Bristol Street, 4653 N Bristol Street, 6114 N 48th Street, 4652 N Visscher Street, 4655 N Defiance Street, 3706 N Huson Street. This project involves 1.9 acres of soil disturbance for Residential and Other (MTCA Remedial Action, Residential Yard Cleanup Program) construction activities. The receiving waterbody is Puget Sound (Commencement Bay). Any persons desiring to present their views to the Washington State Department of Ecology regarding this Application, or interested in Ecology's action on this Application, may notify Ecology in writing no later than 30 days of the last date of publication of this notice. Ecology reviews public comments and considers whether discharges from this project would cause a measurable change in receiving water quality, and, if so, whether the project is necessary and in the overriding public interest according to Tier II anti-degradation requirements under WAC 173-201A-320. Comments can be submitted to: ecyrewqianoi@ecy.wa.gov, or ATTN: Water Quality Program, Construction Stormwater Washington State Department of Ecology P.O. Box 47696 Olympia, WA 98504-7696 IPL0348447 Jun 17,24 2026