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~~ fed <br />MOUNTAIN COAL <br />~~ NV~. <br />COMPA ~.~. <br />A Subsidicrr of Arch Western Resnnrces, LLC <br />July 06, 2007 <br />RECEIVED <br />JUL 0 6 2001 <br />plvlswn atand Safety n <br />Mining <br />Mr. Tom Kaldenbach <br />Colorado Division of Reclamation Mining and Safety (CDRMS) <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />Wes[ Elk Mine <br />P O oox 591 <br />5174 Highway 133 <br />Somerset, CO 81434 <br />(970) 929•i01i <br />Fac (970) 929-1595 <br />RE: Mountain Coal Company L.L.C., West Elk Mine; Permit C-80-007, Technical <br />Revision No. 110, (TR-110), Adequacy Responses to CDRMS Comments. <br />Dear Mr. Kaldenbach: <br />Mountain Coal Company, L.L.C. (MCC) submits the attached adequacy responses to the <br />CDRMS comments. The Division's continents are numbered and italicized, MCC's <br />responses are bolded. <br />1) Please subnti! a revised Map .i~l and a detailed design of Rae lower section of <br />C:rh'ert CI-.i illustrating the outfall above Ilse rock cliff and dre relationship of the <br />diversion, Culvert CS-1, the road, and the river outfall. <br />MCC has attached a revised Map 54 and the detailed design showing the <br />pipe detail and placement of the Cl-5 culvert. <br />Z) Please add ro the submittal cr description gflhe best nranagenrenl practices that will <br />be used during consh•uclion; for example, slrasr rradd/es, sill fencing, immediate <br />seeding and nrulclring of disturbed meas. <br />MCC will incorporate into the plan the attached description of Best <br />Management Practices (BMPs) to be employed during construction. The <br />practices will include, but not limited to, directing water away from the <br />project area, erecting silt fence, straw wattles, erosion control blankets. When <br />using the erosion control blankets, the area will first be seeded, and fertilized <br />the erosion control blankets will serve as the mulch far the area. <br />3) DRA4S i.r preparing cr rec•lantatiorr cost estimate and 1vi11 provide~~ou cr copy n~hett <br />it is frtrished <br />MCC appreciates the Division preparing the reclamation cost estimate. <br />