11/21/2008 - NOTICE OF DETERMINATION ISSUED. RESPONDENT FAILED TO TIMELY REPORT RELEASES EQUAL TO OR GREATER THAN THE REPORTABLE QUANTITY OF TWO HAZARDOUS SUBSTANCES TO THE NATIONAL RESPONSE CENTER, TO MISSISSIPPI'S STATE EMERGENCY RESPONSE COMMISSION (SERC), AND THE LOCAL EMERGENCY PLANNING COMMITTEE (LEPC). RESPONDENT HAS DISCLOSED THAT RELEASES OF METHYL MERCAPTAN OCCURRED IN 2002, 2003, AND 2004. RESPONDENT HAS ALSO DISCLOSED THAT RELEASES OF HYDROGEN SULFIDE OCCURRED IN 2002, AND 2003. CORRECTIVE MEASURES TAKEN INCLUDE UPDATEDS TO THE GUIDANCE AND METHODOLOGY FOR IDENTIFYING NON-CONDENSABLE GAS VENTING PERIODS THAT COULD EXCEED THE REPORTABLE QUANTITIES OF HAZARDOUS SUBSTANCES.