PRO-TEC COATING COMPANY IS THE OPERATOR OF AN EXISTING CONTINUOUS HOT DIP STEEL COIL GALVANIZING LINE (CGL#1) AND IS CONSTRUCTING A NEW CONTINUOUS HOT DIP STEEL COIL GALVAN- IZING LINE (CGL#2) AT ITS FACILITY. PRO-TEC BEGAN CONSTRU- CTION OF CGL #2 WITHOUT THE REQUIRED PERMIT TO INSTALL, IN VIOLATION OF THE CLEAN AIR ACT, THE FEDERAL REGULATIONS AND THE OHIO SIP. BOTH CGL #1 IS A MAJOR SOURCE AND CGL #2 IS A MAJOR MODIFICATION OF A MAJOR SOURCE. PRO-TEC FAILED TO EMPLOY BACT AT CGL #1 AND CGL #2.