Pacificorp v. Sixkiller

FOR PUBLICATION UNITED STATES COURT OF APPEALS FOR THE NINTH CIRCUIT PACIFICORP, an Oregon business No. 24-4803 corporation, D.C. No. 3:23-cv-06155- Plaintiff - Appellant, TMC v. CASEY SIXKILLER, Director of the OPINION Washington State Department of Ecology, Defendant - Appellee. Appeal from the United States District Court for the Western District of Washington Tiffany M. Cartwright, District Judge, Presiding Argued and Submitted June 2, 2025 Seattle, Washington Filed August 7, 2026 Before: Johnnie B. Rawlinson, Daniel A. Bress, and Patrick J. Bumatay, Circuit Judges. Opinion by Judge…