THE PCB UNIT INCLUDES A PCB HEAT TRANSFER SYSTEM IN USE SINCE AT LEAST THE 1960'S. THE UNIT HAD A CAPACITY OF 150 GALLONS. PCBS WERE DETERMINED TO BE PRESENT IN SAMPLES AT A LEVEL OF 31,000 PPM AFTER ANALYSIS CONDUCTED FOR THE COMPANY IN 1995. THE SAMPLING AND LABORATORY ANALYSIS WAS DONE AFTER THE EQUIPMENT'S USE WAS DISCONTINUED IN JANUARY 1995. THE FACILITY EMPLOYEES ABOUT 100 PEOPLE, BUT THE COMPANY HAS ABOUT 40 LOCATIONS NATIONWIDE. AN INSPECTION WAS HELD ON OCTOBER 10, 1995 AFTER THE STATE RECEIVED A NOTICE FROM THE COMPANY THAT IT WAS DISPOSING OF PCB EQUIPMENT. INFORMATION INDICATES THAT THE COMPANY HAS FAILED TO REPORT OR KEEP RECORDS RELATED TO THE PCB HEAT TRANSFER SYSTEM. A PCB SPILL FROM THE SYSTEM ALSO OCCURRED BASED ON SAMPLING OF THE FLOOR ADJACENT TO THE SYSTEM.