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Colorado Department of Public Health and Environment <br />Air Pollution Control Division <br />Western Fuels -Colorado, A Limited Liability Company <br />Permit No. 10M02275 <br />Final Approval — Issuance 4 <br />Annual Limits: <br />Pollutant <br />PM <br />PM10 <br />PM2.5 <br />NOx <br />CO <br />Fugitive Estimated emissions (tons <br />per ear) <br />111.3 <br />32.3 <br />5.2 <br />7.2 <br />45.7 <br />Note: Compliance with these fugitive emission limits shall be demonstrated by not exceeding the <br />production limits in condition number 8, and compliance with the applicable provisions of the <br />Particulate Emissions Control Plan for Mining Activities that is a part of this permit. <br />3. The particulate emission control measures listed on the attached page (as approved by the Division) shall <br />be applied to the particulate emission producing sources as required by Regulation No. 1, Section <br />III.D.1.b. <br />PROCESS LIMITATIONS AND RECORDS: <br />4. This source shall be limited to the maximum production rates as listed below and all other activities, <br />operational rates and numbers of equipment as stated in the application. Daily and Annual records of the <br />actual production rates shall be maintained by the applicant and made available to the Division for <br />inspection upon request. (Reference: Regulation No. 3, Part B, Section II.A.4.) <br />Daily Limits: <br />Section from Attachment A <br />Section A <br />Section B <br />Topsoil removal by dozers <br />15 <br />15 <br />dozer hours per da <br />Topsoil loading by into trucks and <br />dumped into la down area <br />20,000 <br />20,000 <br />tons per da <br />Topsoil truck haul <br />190 <br />228 <br />miles per da <br />Spreading of topsoil <br />15 <br />15 <br />dozer hours per da <br />Overburden drilling <br />220 <br />220 <br />holes per da <br />Overburden blasting <br />25,000 <br />25,000 <br />sq. ft. per da <br />ANFO use not to exceed <br />14.5 <br />14.5 <br />tons per da <br />Blasted and freedig overburden moved <br />by dozer <br />17 <br />17 <br />dozer hours per da <br />Overburden shovel loading to trucks and <br />spoil <br />30,000 <br />30,000 <br />tons per da <br />Overburden truck haulage to mined out <br />area <br />262 <br />319 <br />miles per da <br />Coal seam ripped and dozed <br />9 <br />15 <br />dozer hours per da <br />Coal loaded to trucks <br />1,444 <br />2,600 <br />tons per da <br />Topsoil storage piles <br />400,000 <br />400,000 <br />tons <br />Overburden stockpiles <br />3,000,000 <br />3,000,000 <br />tons <br />Coal stockpiles <br />10,000 <br />10,000 <br />tons <br />Disturbed Area Subject to Wind Erosion <br />110 <br />110 <br />acres <br />AIRS ID: 085/0036/003 Page 2 of 10 <br />Appendix 2.05.6(1)-1-2 <br />