Final Withdrawal of Certain Federal Aquatic Life Water Quality Criteria Applicable to Wisconsin

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The EPA is withdrawing the federal aquatic life water quality criteria for chronic and acute copper and nickel, and chronic endrin and selenium applicable to certain waters of the Great Lakes System in Wisconsin. Wisconsin's revised and EPA-approved criteria adequately protect all waters of the State designated for aquatic life use at a level consistent with the federal requirements. As a result of this withdrawal, Wisconsin will continue to implement its EPA-approved aquatic life criteria.