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10!2112005 14:53 9709295595 WEST ELK PAGE 02 <br />Dct 21 2D05 14:40 PROIYIR RRfVGER DISTRICT 970 527 4151 p.Z <br />SL'PPI.E14>;ENTA 1, )tIVFOR.bIATIONREFORT <br />Coal 1Vlethane Drainage Project Panels 1 fi-24 <br />Moantain Coat Company,'PVest Elk Mitte <br />October 2005 <br />INTRODUCTION AND BACICGOUNI). <br />This Supplemental Information Repvtt (STR) was prepared to evaluate any changed <br />conditions in a project area previously approved for methane drainage activities. <br />Depending on the significance of the changed conditions a determination is made <br />whether the current environutental'analysis is su:fticient or ifadditional analysis is <br />necdcd, In October 2005, Mountain Coal Company (1vICC) submitted a proposal tv drill <br />on the GMUG National Forest, Paenia RangerDi&67ct. The purpose of and need for <br />drilling to is to mitigate recent elevated carbon monoxide levels within the undergrotmd <br />mint before kealth and human safety concerns are compromised. The proposal to drill <br />lies on coal least COC-56447, and is located in Township 13 5, Range 90 west, 6A1i <br />principal meridian, center of the southeast %s of section 23 in Gunnison County, <br />Colorado, and is shown on the attached map. The load surface is National Forest System <br />lands administered by rho Grand Mesa, Uncompahgre, and Gunnison National Forest, <br />Paonia Ranger District. <br />The lands ctnxently proposed fot a wep pad and drilling lie within the project area that <br />was previously analyzed in the Coal Methane Drainage Project, Panel l fi-24 <br />Environmental Assessment (13A) (2002). <br />The proposal to drill consists of uP to 5 drill holes from one (1) tlew well pad <br />(approxirnatcly 200' X 200'), and less than. ll8 mile of temporary road. Drill holes would <br />be approximately 7" diameter and about 2000' deep. Upon well completion, water, foam, <br />atld/or nitrogen would then be pumped througb the drill hole into the mine wo[kings. <br />With the exccptioa of the possible: construction of a very short tempoz•try road tv access <br />the proposed pad site, access to the site would be across existing roads addressed in the <br />EA. . <br />Tbis S1R will present any changed circumstances since the 2002 surface use approvals, <br />but does not change the conditions prescribed for protection ofnon-mineral interests <br />applicable to lease COC 5644?. <br />REVIEW AND EV.A.L,UATION: <br />The Coal Methant Drainage Project Panels 16-24 EA ana DNIFONSI slang with irs <br />supporting project record wss reviewed for thi a 5IR. The following specific changed <br />circumstances were noted, and are documented below: <br />Issues: A review of the issues from the }yA show that th.e key rrsoutcc issues have not <br />changed, and the previous analysis adequately addressed them. <br />