1. SECTION 113(D) OF THE CLEAN AIR ACT ( CAA ), 42 U.S.C. SECTION 7413(D). 2. WEYERHAEUSER COMPANY, MOUNTAIN PINE MILL STATE HIGHWAY 227 MOUNTAIN PINE, GARLAND COUNTY, ARKANSAS 71956 3. RESPONDENT WAS IN VIOLATION OF TITLE V OF THE CAA BY: 1) RESPONDENT OPERATED THE VENTURI SCRUBBER FOR THE ERIE CITY BOILER AT A RATE BELOW THE REQUIRED MINIMUM PRESSURE DROP RANGE OF 8 OF WATER DURING THE MONTHS OF APR. AND SEPT. 1999; 2) RESPONDENT OPERATED THE VENTURI SCRUBBER FOR THE ERIE CITY BOILER AT A RATE ABOVE THE MAXIMUM PRESSURE DROP RANGE OF 12 OF WATER DURING THE MONTHS OF MAY AND DEC. 1999; 3) RESPONDENT OPERATED THE VENTURI SCRUBBER FOR THE ERIC CITY BOILER AT A FLOW RATE BELOW THE MINIMUM OPERATING FLOW RATE ALLOWED IN RESPONDENT'S TITLE V PERMIT; 4) RESPONDENT OPERATED THE VENTURI SCRUB- BER FOR THE ERIC CITY BOILER AT A FLOW RATE ABOVE THE MAXIMUM OPERATING FLOW RATE ALLOWED IN RESPONDENT'S TITLE V PERMIT; 5) RESPONDENT OPERATED THE VENTURI SCRUBBER FOR THE KEELER BOILER AT A PRESSURE RATE WHICH WAS BELOW THE MINIMUM PRESSURE RATE ALLOWED IN RESPONDENT'S TITLE V PERMIT; AND 6) RESPONDENT OPERATED THE VENTURI SCRUBBER FOR THE KEELER BOILER AT A PRESSURE RATE WHICH WAS ABOVE THE MAXIMUM PRESSURE RATE ALLOWED IN RESPONDENT'S TITLE V MIT.