THE CLINTON COUNTY HIGHWAY FACILITY IS A SMALL QUANTITY GENERATOR OF HAZARDOUS WASTES. THE FACILITY PERFORMS MAINTENANCE ON COUNTY EQUIPMENT. IT GENERATES LESS THAN 100 KG/MO. OF HAZARDOUS WASTES, SUCH AS SPENT SOLVENTS F002. THE FACILITY DISPOSED OF ITS SPENT SOLVENTS AT ITS LAND DISPOSAL UNIT FOR ABOUT TEN YEARS. THE DISPOSAL UNIT SHOULD BE CLOSED PURSUANT TO RCRA REGULATIONS. THE UNIT DID NOT HAVE INTERIM STATUS NOR A RCRA PERMIT.