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<br />~ MOUNTAIN COAL <br />I:=-~~~ CO M PANY L.LC. <br />A Subsidiary aCArch Western Resources, <br />fY ~,~ <br />`~ ~'~~0 <br />~~N ~ , <br />June 3, 2005 <br />Mr. James Burnell <br />Colorado Division of Minerals and Geology (CDMG) <br />Office of Mined Land Reclamation <br />1313 Sherman Street, Room 21S <br />Denver, Colorado 80203 <br />~"''S'°nwM~~ ~ ?SOS <br />`~6Q~_ <br />West Elk Mine <br />POBox 591 <br />5174 Highway 133 <br />Somerset, CO 81434 <br />(970) 929-5015 <br />Fax (970) 929-5595 <br />Re: Mountain Coal Company LLC (MCC), West Elk Mine; Permit No. C-80-007; Minor <br />Revision Number 309 (MR-309); One Methane Drainage Well (MDW) (24-OSB) on <br />Existing Pad 24-05. <br />Dear Mr. Burnell, <br />As a result of our telephone conversation of June 2, 2005, MCC is submitting this Application <br />Form for Minor Revision No. 309 (attached) pertaining to Methane Drainage Well (MDW) 24- <br />OSB. This well will be drilled on existing pad 24-OS which now contains MDWs 24-OS and 24- <br />OSA (Minor Revision-308 recently provided approval for drilling we1124-OSA). <br />MDW 24-OSB is the mirror image of 24-OSA; it is directionally drilled 180 degrees in the <br />opposite direction from 24-OSA. As such, MDW 24-OSB will also be approximately 2,049 feet <br />deep. The proposed well construction design for MDW 24-OSB is attached. Also attached is <br />Map 1 -- MR-309, MDW 24-OSB which shows the location of proposed MDW 24-OSB. <br />Since the same drill pad used to drill wells 24-OS and 24-OSA will be used to dri1124-OSB, no <br />additional surface disturbance will be required and sediment control in place for pad 24-OS will <br />also serve to control runoff from the addition of we1124-OSB. The water will be conveyed as <br />much as possible to a new mud pit built on 24-OS drill pad and constructed hl subsoil. Sediment <br />control design is described for the 24-OS pad in the 2004 Annual Operating Plan, Minor Revision <br />Number 302. <br />Well 24-OSB will be plugged and abandoned using a mechanical packer set at the lowest possible <br />point in the well (note that subsidence damage to the casing may preclude access to the entire <br />depth of the casing). Above this packer the hole will be plugged with CDMG approved materials <br />to the bottom of the 5-foot cement surface cap using tremmie line. The top 5-feet of the well <br />