THE COMPANY WAS CITED FOR FAILURE TO FILE A NOTICE WITH EPA BEFORE COMMERCIALLY MANUFACTURING A NEW CHEMICAL CALLED LUWA BOTTOMS, WHICH IS DERIVED FROM WASTE OIL. WASTE OIL CAN CONTAIN HEAVY METALS, ORGANICS, AND OTHER CHEMICAL IMPURITIES. SAFETY-KLEEN SELLS LUWA BOTTOMS TO COMPANIES THAT PRODUCE ASPHALT PRODUCTS LIKE ROOFING PAPER AND PAVING MATERIALS. THE COMPANY MANUFACTURED AND SHIPPED THE CHEMICAL FROM TWO OF ITS FACILITIES WITHOUT FILING THE NOTICE OVER A 10-MONTH PERIOD. SHIPMENTS OF LUWA BOTTOMS EXCEEDED 20 TONS ON SOME DAYS.