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MOUNTAIN COAL <br />~~COMPANY~.~.~. <br />A Subsidiary of Arch Western Resources, I,LC <br />West Ells Mine <br />P O Box 591 <br />S l74 Highway 133 <br />Somerset, CO 81434 <br />(970)929-SOTS <br />Fax (970)929-5595 <br />MCC also conducted a macroinvertebrate study and dilution calculations on the receiving stream <br />(North Fork of the Gunnison River) to determine what, if any, effects the discharge was having on the <br />receiving stream. I am happy to report that the health of the receiving stream was not compromised. <br />The reason that these studies were not conducted on the West Fork of Sylvester Gulch or the Main <br />Stem of Sylvester Gulch is because these ephemeral streams only flow after heavy precipitation events, <br />intermittent spring issuance, or as a result of the West Elk Mine dischazge flows. <br />It is our intent to set-up a meeting with you and your staff to discuss the results of all the data and our <br />consultant's findings in February 2003. Let me know what would be a good time to meet sometime the <br />week of the 24~'. <br />If you have questions or require additional information concerning these Discharge Monitoring <br />Reports, please contact me at (970} 929-2238. <br />Sinc el , c~~T".'~' <br />enry B e <br />Environmental Engineer <br />Enclosures: DMRs/Report for West Fork of Sylvester Gulch, 017, NPDES Biomonitoring October <br />2002, Commercial Testing and Engineering Co.; West Fork of Sylvester Gulch Accelerated NPDES <br />Biomonitoring October-November 2002; West Fork of Sylvester Gulch Preliminary Toxicity <br />Identification November 2002; Volatile and Semi Volatile Sample Analyses (CT&E - SGS) 12/16/02. <br />cc: James Burnell - CDMG <br />E. DiClaudio - w/o attachments <br />P. Schmidt - w/o attachments <br />C. Lenkey - WQCD Permits and Enforcement <br />Availability of Records File -NPDES <br />