-FAILURE TO MARK THE CONTAINERS WITH ACCUMULATION DATES OR TO HAVE SUCH DATES VISIBLE FOR INSPECTION. -FAILURE TO MARK THE CONTAINERS WITH THE WORDS 'HAZARDOUS WASTE'. -ACCUMULATION OF HAZARDOUS WASTE ON-SITE FOR MORE THAN 90 DAYS AND NOT REQUESTING AN EXTENSION TO THE 90 DAY PERIOD -FAILURE TO SUBMIT THE BIENNIEAL REPORT. -FAILURE TO MAINTAIN ADEQUATE AISLE SPACE.