THE COMBUSTION STACK AT DETROIT COKE CORPORATION WAS FOUND IN VIOLATION OF WAYNE COUNTY DEPARTMENT OF HEALTH, AIR POLLUTION CONTROL REGULATION SECTION 6.1, PART OF THE FEDERALLY APPROVED MICHIGAN STATE IMPLEMENTATION PLAN. 45 FED.REG.29790. THE COKE BATTERY DOORS WERE FOUND IN VIOLA- TION OF MICHIGAN AIR POLLUTION CONTROL RULE 336.1356, COKE OVEN DOOR EMISSIONS. 46 FED.REG.27923.