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Mountain Coal Company, L.L.C <br />Permit No 95GU508-4 <br />Final Approval - Modification-2 Colorado Department of Public Health and Environment <br />page 2 Air Pollution Control Division <br />3 A Revised Air Pollutant Emission Notice (APEN) shall be filed (Reference Reg 3, Part All 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 <br />tons per year or more, above the level reported on the last APEN submitted-, or <br />For sources emitting 100 tons per year or more a change in actual emissions of five <br />percent or 50 tons per year or more. whichever is less. above the level reported on the <br />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 <br />level reported on the last 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 <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 />4 All previous versions of this permit are canceled upon issuance of this permit <br />C Ile— /rae?ye,PO d-l? <br />Permit Review Engineer <br />_Date _Action <br />Issuance ?FA Modification-2 <br />September 23, 1998 <br />R K Hanco 7_I_iC;1O`P*__;E <br />Construction Permits Unit Supervisor <br />Description <br />Increase haul of coal from the storage pile, emergency <br />stockpile from 500.000 tpy to 882 000 tpy Increase PM <br />from 2 9 tpy to 3 0 tpy. increase PM10 from 1 4 tpy to 1.5 <br />tpy Update Regulatory references, Notes and General <br />Conditions <br />Initial Approval modification, Name change from Mountain <br />Coal Co -West Elk Mine to Mountain Coal Co. LLC-West <br />Elk Mine -- - -- - - --- - <br />A-. <br />IA Modification-1 <br />051!0015!014 ver 2/00