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STATE OF COLORADO <br />DIVISION OF RECLAMATION, MINING AND SAFETY <br />Department of Natural Resources <br />7313 Sherman St., Room 215 <br />Denver, Colorado 80203 C O L D RA D O <br />Phone: (303) 866-3567 o t v t s t o N o r <br />RECLAMATION <br />FAX: (303) 832-8106 A't W I N G <br /> - Sc- <br />January 30, 2007 SAFETY <br /> <br />Mr <br />Graham Roberts Bill Owens <br />. Governor <br />Environmental Manager Russell George <br />Trapper Mining, Inc. exec°"ve Director <br />P.O. BOX 187 Ronald W. Cattany <br />Cralg <br />CO 81626 D <br />° <br />ur <br />> atural <br />Reso <br />ce Trustee <br />Re: Trapper Mine, C-BI-010, Fourth Quarter 2006 DMR Review <br />Dear Mr. Roberts: <br />The Division has reviewed Trapper Mining Inc.'s (TMI) fourth quarter 2006 Colorado Wastewater <br />Discharge Monitoring reports, CDPH&E permit No. CO-0032115. TMI's fourth quarter 2006 DMRs were <br />received by the Division, on January 29, 2007. The reports cover the time period from October 1, 2006 <br />through December 31, 2006. Timely submittal of these reports is in compliance with Rule 4.05.13(2)(a)(iii) <br />Five outfalls discharged during fourth quarter 2006. Outfalls 001, 002 and 020 discharged routinely <br />throughout the quarter. Outfalls 011 and 021 discharged in response to precipitation events. TMI measured <br />a precipitation event on October 10, 2006 of 0.33" in a 24-hour period, in addition to 0.81" received over <br />the preceding 5 days. Primary effluent limitations were exceeded on outfall 011 for TSS. The alternate <br />limitation will be applied to outfall 011 due to the October 10, 2006 precipitation event. WET tests were <br />conducted for outfalls 011, 020 and 021. No exceedences of WET test limitations were reported for any of <br />the tested outfalls. <br />Sediment levels in the ponds remain below the 60% clean out threshold. <br />TMI provided precipitation and temperature records with the DMR forms to document weather conditions <br />on the site. <br />Thank you for the timely submittal of these reports. <br />Sincerely, <br />-~__. <br />anet Bit~ns <br />Environmental Protection Specialist <br />C:/jhb/C81010/DMR's/200614th Q.doc <br />Cc: Dan Hernandez, DMG <br />Office of Office of <br />Mined Land Reclamation Active and Inactive Mines <br />