550 P.2d 621 AMERICAN SMELTING AND REFINING COMPANY and Hayden Smelter, Appellant, v. ARIZONA AIR POLLUTION CONTROL HEARING BOARD, Division of Air Pollution Control of the State Department of Health and Arthur A. Aymar, Director, Appellees. No. 12253-PR.Supreme Court of Arizona, In Banc. June 8, 1976. Rehearing Denied July 13, 1976. Appeal from the Superior […]
