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Page 5 Colorado Department of Public Health and Environment <br />Construction Permit Air Pollution Control Division <br />COLOWYO COAL COMPANY, L.P. <br />• Permit No. 95-MF-1040 <br />Final Approval -Modification-4 <br />1 I. A revised Air Pollutant Emission Notice (APEN) shall be filed: (Reference: Reg.3, Part A,II.C) <br />a. Annually whenever a significant increase io emissions occurs as follows: <br />For any criteria pollutant: <br />For sources emitting less than 100 tons per year, a change in actual emissions of five tons per year or more, <br />above the level reported on the last APEN; or <br />For sources emitting 100 tons per year or more, a change in actual emissions of five percent or 50 tons per year <br />or more, whichever is less, above the level reported on the last APEN submitted; or <br />For any non-criteria reportable pollutant: <br />If the emissions increase by 50% or five (5) tons per year, whichever is less, above the level reported on the last <br />APEN submitted to the Division. <br />b. Whenever there is a change in the owner or operator of any facility, process, or activity; or <br />c. Whenever new control equipment is installed, or whenever a different type of control equipment replaces an <br />existing type of control equipment; or <br />• d. Whenever a pemrit limitation must be modified; or <br />e. No later than 30 days before the existing APEN expires. <br />B~==~~,.~ By. ~ . <br />Thomas P. Mark ~- lames S. Geier, P.E. <br />Permit Engineer Unit Leader <br />INITIAL APPROVAL: FEBRUARY 5, 1997 PERTAINED TO CANCELLATION OF ALL PREVIOUSLY ISSUED PERMITS. <br />MODIFICATION-l: MARCH 09, 1998 PERTAINED TO: USE OF PARTIAL ENCLOSURE FOR CONTROL OF EMISSIONS FROM <br />COAL PREPARATION-PRIMARY CRUSHER HOUSE (AIRS 1D: 022) <br />DURING NOVEMBER-APRIL MONTHS (FREEZING CONDITIONS) <br />MODIFICATION-2 (NOT ISSUED) PERTAMED TO: INCREASING SPEED LIMIT FOR "IN PIT' HAULAGE T045 MPH, AND ADDING <br />REFERENCE TO 190 AND 240-TON HAULAGE TRUCKS. <br />THIS MODIFICATION-3 COMBINED WITH FINAL APPROVAL: PERTAINS TO: FOR EMISSION SOURCES UNDER AIRS ID: 023, USE OF <br />ATOMIZMG SPRAY NOZZLES IS NOT REQUIRED UNDER <br />FREEZING CONDITIONS. EMISSION CONTROL FOR <br />TRANSFER FROM CONVEYOR TO STACKING TUBE <br />(REFERENCED IN ATTACHM ENT E) STANDS CORRECTED TO <br />BAGHOUSE. <br />MODIFICATION -0 ADMINISTRATIVE REVISION TO MODIFY CONDITION 7 TO PROVIDE FOR AVERAGE DAILY EMISSIONS TO BE <br />CALCULATED FROM THE MONTHLY EXTRACTION AMOUNTS. <br />• <br />081!0007/499 <br />