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<br /> <br />Page 3 Colorado Department of Public Health and Environment <br />Air Pollution Control Division <br />Rocky Mountain Materials and Asphalt, Inc. <br />Permit No. OOFR0237F <br />Initial Approval <br />8. A revised Air Pollutant Emission Notice (APEN) shall be filed: (Reference: Regulation 3, Part A, II.C.) <br />a. Annually whenever a significant increase in 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 <br />per year or more, above the level reported on the last APEN; or <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 <br />equipment replaces an existing type of control equipment; or <br />d. Whenever a permit limitation must be modified; or <br />e. No later than 30 days before the existing APEN expires. <br />NOTE: A one ton per year emission increase will occur when the production rate increases by <br />approximately 2368.4 tons per year. (Based on emission factors noted on the last page of this permit <br />which assume all operations change in the same proportion and there is no change in haul trucks or <br />length of haul roads). <br />043/0118/001 <br />