AT A SCRAP YARD, CONSOLIDATED SCRAP RUNS AN ALUMINUM SWEAT FURNACE WITH AN ASSOCIATED THERMAL AFTERBURNER TO INCINERATE POLLUTANTS. CONSOLIDATED SCRAP VIOLATED VARIOUS PROVISIONS OF A FEDERALLY-ENFORCABLE STATE AIR PERMIT PERTAINING TO THE FURNACE AND AFTERBURNER, AND ALSO VIOLATED FEDERAL AIR TOXICS REQUIREMENTS FOR THIS SAME EQUIPMENT.