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MOUNTAIN COAL <br />?COMPANYL.L.C. <br />A Subsidiary of Arch Western Resources, LLC <br />West Elk Mine <br />P.O. Box 591 <br />5174 Highway 133 <br />Somerset, CO 81434 <br />(970) 929-5015 <br />Fax(970)929-5595 <br />* A topographical map of the project area will be forwarded to the SHPO to provide <br />confirmation that no cultural resources are known to exit within the project area. These <br />findings will be forwarded to the CDRMS. <br />9. If the proposed drilling area is not within an area currently reporting to a sedimentation pond, a <br />description of how the drilling area will qualify as a small area exemption per 4.05.2(3); <br />* As this area will not drain to the RPE sediment ponds, alternate sediment control measures <br />will be utilized, including best management practices straw bales, silt fence and/or excelsior <br />waddles. <br />10. A description of whether the so-called "Tweety" drainage proposed for fording is an ephemeral <br />stream with an upstream watershed of a least one square mile (4.03.3(2)(c)); <br />* The majority of the Tweety Gulch drainage is located within the west half of Section 15 and <br />is within an area of less than one square mile in size (approximately 0.7 square miles.) Also, as <br />it is an ephemeral drainage, no flows typically exist requiring fording. <br />11. A description of how surface water runoff from the proposed new light use road during its <br />construction, use, maintenance and reclamation will prevent causing additional contributions of <br />suspended solids to streamflow or to runoff outside the permit area (4.03.3(1)(b); <br />4.03.3 (4)(a)(ii)). <br />* As in response #9 above, alternate sediment control measures will be utilized, including best <br />management practices such as straw bales, silt fence and/or excelsior waddles. <br />Please contact me at (970)929-2238 or by e-mail should you have further questions regarding this submittal. <br />Sincerely, <br />Kathleen G. Welt, <br />Environmental Engineer III <br />cc: Doug Nolte -MCC <br />Chris Nyikos - MCC <br />Dan Hernandez - CDRMS