UTILITY TRAILER MANUFACTURING COMPANY, INC. MANUFACTURES TRUCK TRAILERS IN ITS CITY OF INDUSTRY, CALIFORNIA FACILITY. IT IS LOCATED IN A NONATTAINMENT AREA FOR OZONE WHICH HAS RECEIVED AN EXTENSION FOR COMPLIANCE UNTIL 1987. UTILITY TRAILER IS A TEXAS CORPORATION REGISTERED AS DOING BUSINESS IN CA, WITH CORPORATE HQ IN THE CITY OF INDUSTRY, CA. UTILITY VIOLATED THE CALIFORNIA STATE IMPLEMENTATION PLAN IN THAT THE COATINGS USED ON ITS TRUCK TRAILERS CONTAIN MORE VOLATILE ORGANIC COMPOUNDS THAN ALLOWED BY SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT (SCAQMD) RULE 1107. A JOINT EPA AND SCAQMD INSPECTION OF THE FACILITY ON 12/6/84, FOUND THE COMPANY TO BE IN COMPLIANCE WITH RULE 1107. SUBSEQUENT INFORMATION SUBMITTED BY UTILITY TRAILER INDICATED THAT THE COR. WAS NOT IN COMPL. WITH RULE 1107'S FINAL & MORE STRIN- GENT LIMITS, WHICH BECAME EFFECT 1/1/85. UTILITY LISTED IN BY CDS AS A SIGNIFICANT VIOLATOR. EPA ISSUED AN NOV TO UTIL ITY ON 9/19/85. UTILITY HAS SUBMITTED TO R9 A PROPOSED COMP- LIANCE PLAN THAT WOULD BRING THE FACILITY INTO COMPLIANCE WITH SCAQMD RULE 1107 BY THE END OF 1986. COM- PLIANCE WILL BE ACHIEVED EITHER BY CONVERSION OF THE COMPANY'S COATING PROCESSES TO LOW VOC COATINGS OR BY INSTALLATION OF ADD-ON EMISSIONS CONTROL TECHNOLOGY. TRAILER BODY PARTS TO BE COATED AT UTILITY TRAILER ARE MADE OF STEEL. THESE PARTS ARE COATED IN ONE OF FOUR SPRAY BOOTHS, WHICH ARE EQUIPPED WITH ELECTR