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STATE OF COLORADO <br />DIVISION OF MINERALS AND GEOLOGY <br />Department of Natural Resources <br />1313 Sherman St., Room 215 C O L O RA D O <br />Denver, Colorado 80203 DIVISION O F <br /> MIN <br />RAL $ <br />Phone: (303) 866-3567 E <br />FAX: (303) 832$106 G E O L O G Y <br /> RECLA NATION•NI NIN° <br />June 14, 2006 SAFETY•SCIENCE <br />Graham Roberts <br />Mr Bill Owens <br />. Governor <br />Environmental Manager <br /> R°sseil ceo e <br />Trapper Mining, Inc. F><ecutive Director <br />P.O. BOX 187 Ronald W. Cattany <br />CO 81626 <br />Craig Division DirecTOr <br />, Natural Resource Trustee <br />Re: Trapper Mine, C-81-010, First Quarter 2006 DMR Review <br />Dear Mc Roberts: <br />The Division has reviewed Trapper Mining Inc.'s (TMI) first quarter 2006 Colorado Wastewater Discharge <br />Monitoring reports. TMI's first quarter 2005 DMRs were received by the Division, on April 27, 2006. The <br />reports cover the time period from Januazy 1, 2006 through Mazch 31, 2006. Timely submittal of these <br />reports is in compliance with Rule 4.05.13(2)(a)(iii) <br />Ten outfalls discharged during first quarter 2006. Outfalls 001, 002, and 020 dischazged throughout the <br />quarter. Outfalls 005, 011, 013, 014, 015, 017, and 021 dischazged in response to spring snowmelt in <br />March. One precipitation event, on February 28, 2006, measured 0.46 inches. This precipitation event <br />occurred during a time period of warm daytime temperatures, greater than 40°F, on top of still frozen <br />ground conditions. Effluent limitations were exceeded for TSS and Total Iron for some of the outfalls. <br />These exceedances were reported to the Colorado Department of Public Health and Environment <br />(CDPH&E). Alternate limitation standazds were requested by TMI from the CDPH&E, for exceedences at <br />outfalls 001, 002, 005, OI 1, 014, 017 and 021 for precipitation and snowmelt conditions. WET tests were <br />conducted for outfalls 020 and 021. No exceedences were reported for outfall 020. <br />TMI reported that sediment in the ponds do not exceed the 60% sediment level in any of the ponds. TMI <br />provided precipitation and temperature records with the DMR forms to document weather conditions on the <br />site. <br />Thank you for the timely submittal of these reports. <br />Protection Specialist <br />C:/jhb/C81010/DMR's/2006/1st Q.doc <br />Office of Office of Colorado <br />Mined Land Reclamation Active and Inactive Mines Geological Survey <br />