ALCOA FAILED TO OPERATE HOLDING FURNACES IN THE INGOT CASTING FACILITY IN COMPLIANCE WITH THE OPACITY LIMITATIONS IN THE INDIANA SIP. REGION 5SEEKS A CIVIL PENALTY AGAINST ALCOA IN THE AMOUNT OF $27,500 PER VIOLATION FOR EACH DAY OF VIOLATION. PURSUANT TO THE CAA, THE BOTTOM-LINE SETTLEME NT FOR THESE VIOLATIONS IS $643,000. REGION 5 ALSO SEEKS AN INJUNCTION ORDERING ALCOA TO OPERATE THE HOLDING FURNACES IN THE INGOT CASTING FACILITY IN COMPLIANCE WITH THE OPACITY LIMITS IN THE INDIANA SIP> ..