IMPROPER DISPOSAL OF PCB-CONTAMINATED DIELECTRIC FLUID FROM THE TRANSFORMER IN RESPONDENT'S HOUSE. IMPROPER DISPOSAL OF PCBS FROM THE PCB TRANSFORMER IN THE CLASSROOM BUILDING. IMPROPER STORAGE OF COMBUSTIBLE MATERIAS WITHIN FIVE METERS OF THE PCB TRANSFORMER IN THE CLASSROOM BUILDING. FAILURE TO MARK THE PCB TRANSFORMER IN THE CLASSROOM BUILDING. IMPROPER DISPOSAL OF PCBS FROM THE PCB TRANSFORMER IN THE CENTENNIAL HALL. FAILURE TO MARK THE PCB TRANSFORMER AND THE VAULT DOOR IN CENTENNIAL HALL. IMPROPER STORAGE OF COMBUSTIBLE MATERIALS WITHIN FIVE METERS OF THE PCB TRANSFORMER IN CENTENNIAL TOWERS. FAILURE TO MARK THE PCB TRANSFORMER AND THE DOOR IN CENTENNIAL TOWERS. FAILURE TO KEEP INSPECTION RECORDS. FAILURE TO MAINTAIN ANNUAL DOCUMENTS FOR PCBS IN SERVICE. FAILURE TO REGISTER THE PCB TRANSFORMERS.