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GCC Rio Grande, Inc. <br />Permit Application 09FR0443F <br />APEN Required / Permit Exempted <br />Colorado Departmt... of Public Health and Environment <br />Air Pollution Control Division <br />A Revised Air Pollutant Emission Notice (APEN) shall be filed: (Reference: Regulation No. 3, Part A, Section <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 per <br />year or more, above the level reported on the last APEN submitted. <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 <br />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. APEN/s expires five (5) years from the <br />date/s of submittal. <br />Any changes with respect to the original submittal that would result in increases in mining activities, emissions, or <br />ambient air impacts, or that would result in the emission of any pollutants not listed in the original submittal, <br />automatically nullifies this exemption. Before actually making any such change, you must apply to the Division for <br />a new exemption based on the anticipated change. If the Division denies the new exemption, you will have to <br />obtain a permit before implementing the change. <br />Sincerely, <br />Michael Harris, P. E. <br />Permit Review Engineer <br />Construction Permits Unit <br />Stationary Sources Program <br />Air Pollution uontro; Lt:ICt;,. <br />APCD-SS-B1 <br />AIRS POINT ID 09FR0443F Page 2 of'3