STACK TESTS FROM DECEMBER OF 1995, MAY 1996, JULY 1996 AND NOVEMBER 1997 INDICATE THAT KNAUF HAS FAILED TO MEET THE PARTICULATE EMISSIONS LIMITATION SET FORTH IN THE INDIANA SIP FOR ITS LINE 604 FURNACE STACK. WHILE THE VIOLATOR IS NOW MAKING EFFORTS TOWARD COMPLIANCE, UP UNTIL NOW IT HAS ONLY BEEN WILLING TO ASK FOR A CHANGE IN THE EMISSION LIMITATION: UNCLASSIFIED AREA. UNCLASSIFIED AREA