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<br />MOUNTAIN COAL <br />~/" ~ COMPANY~.~.~. <br />A Subsidiary ofNch Westwn Rewuroes, LLC <br />April 30, 2007 <br />Ms. Carla J. Lenkey <br />RECEIVED <br />MAY 02 2001 <br />Division of Reclamation, <br />Mining and Safety <br />Colorado Department of Public Health and the Environment <br />Water Quality Control Division (WQCD), Enforcement and Compliance Section <br />4300 Cherry Creek Drive South <br />Denver, CO 80222-1530 <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, CDPS Permit No. CO-0038776, <br />Discharge Monitoring Reports for the First Quarter 2007. <br />Dear Ms. Lenkey: <br />Attached are the Discharge Monitoring Reports (DMRs) for the first quarter of 2007. Also attached aze <br />the Biomonitoring reports from Enviro-Chem Laboratories, January 2007, for Outfa11017. <br />The dischazge from Outfa11017, passed the biomonitoring tests in Daphnia magna populations and the <br />fathead minnow, Pimephales promelas, both populations were unaffected. <br />No excursions were noted in the quarter. <br />MCC has requested the lab provide MCC with analyses in a timely manner. <br />Should you or your staff have questions or need additional information concerning these Discharge <br />Monitoring Reports, please contact me at (970) 929-2238. <br />S' `6~/ <br />c~- <br />eery Bazb <br />Environmental En>?ineer <br />Enclosures; NPDES Forms (DMRs) for 1st Quarter 2007 <br />cc: D. Nolte <br />Tom Kaldenbach - DRMS <br />Availability of Records File - NPDES <br />