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~~ ` ~ MOUNTAIN COAL <br />COMPANYL.L.C. <br />A $ubsidiarv ul Arch Western 0.esourccs. LLC <br />April l2, 2000 <br />Ivir. R. K. Hancock III <br />RECEIVED <br />APR 1 z 2000 <br />Division o1 Minerals 8 Geology <br />Colorado Department of Public Health and the Environment <br />Air Pollution Control Division, Stationary Sources Program <br />4300 Cherry Creek Drive South <br />Denver, CO 80222-130 <br />iii iiiiiiiiiiiu iii <br />999 <br />West Elk Mine <br />P O Bor i91 <br />i 17J Hieh~roy 133 <br />Somerset CO SI17J <br />1970)9?9-3011 <br />Fir 1970) 929-3195 <br />Re: Mountain Coal Company, L.L.C.(1vICC), West Elk Mine, APCD Permit Nos. 99GU0830F, <br />99GU0831, and 99GU0832 <br />Dear Mr. Hancock: <br />This letter and enclosed photograph are in response to your request for additional information as <br />mentioned in your letter dated Mazch 31.2000, and our telephone conversation on April 12, 2000. <br />The West Elk Mine has (since 1982) precluded public access from the areas where receptors were <br />excluded. Referencing MCC~s Application for Modification to Air Quality Construction Permit, <br />October 8, 1999, 4.2 of the .4ir Qualiry Impact Analysis addresses this issue and the area was depicted <br />on Figure -}-l. West Elk Mine Receptor Grid. The ambient air boundary is characterized by a <br />combination of security fenced property with security gates (on roadways), natural barriers of steep <br />terrain and dense vegetation. ~ICC controls and patrols all access to the mine site along Highway 133 <br />(on the north boundary) and the entire length of Sylvester Gulch. The property is fenced with bazbed <br />wire along the south section-lines of sections 21 and 32 (as depicted on Figure =4-1). The east and west <br />lines are a combination of fencing, steep topography (cliffs and slopes > 20%) and dense vegetation <br />(which presents a sufficient physical barrier) as shown on the enclosed aerial photograph. <br />Should you or your staff have questions. please call me at (970) 929-2?38. <br />Sin ly. <br />~. <br />enrv A. arbe <br />Environmental Eneineer <br />Enclosures: Intrasearch.4erial Photograph.?-I.1-97.3733-'_~9 <br />cc: James Burnell - CD~1G <br />P. Schmidt <br />