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STATE OF COLORADO <br />DIVISION OF RECLAMATION, MINING AND SAFETY <br />Department of Natural Resources <br />1313 Sherman St., Room 215 <br />Denver, Colorado 80203 C O L O R A D O <br />Phone: (303) 866-3567 D I V I S I O N O F <br />RECLAMATION <br />FAX: (303) 832-8106 M I N I N G <br /> - &- <br /> SAFETY <br />May 2, 2007 Bill Ritter, lr <br /> Governor <br />Mr. Graham Roberts Harris D. Sherman <br />Environmental Manager Executive Director <br />Tra er Minin <br />Inc <br />I <br />I Ronald W. Canany <br />, <br />, <br />I <br />g <br />I Division Director <br />P.O. Box 187 Natural Resource Trustee <br />Craig, CO 81626 <br />Re: Trapper Mine, C-81-010, First Quarter 2007 DMR Review <br />Dear Mr. Roberts: <br />The Division has reviewed Trapper Mining Inc.'s (TMI) fourth quarter 2006 Colorado Wastewater <br />Dischazge Monitoring reports, CDPH&E permit No. CO-0032115. TMI's first quarter 2007 DMRs were <br />received by the Division, on Apri130, 2007. The reports cover the time period from January 1, 2007 <br />through March 31, 2007. Timely submittal of these reports is in compliance with Rule 4.05.13(2)(a)(iii) <br />Seven outfalls dischazged during first quarter 2007. Outfalls 001, 002 and 020 discharged routinely <br />throughout the quarter. Outfalls 011, 013, 017 and 021 discharged in response to spring snowmelt events. <br />Primary effluent limitations were exceeded on outfalls Ol 1 and 017 for TSS and iron. Due to a fast <br />snowmelt (sudden warm temperatures, as documented in the NOAA weather summaries) the alternate <br />effluent limitations will be applied to outfalls Ol 1 and 017. WET tests were conducted for outfalls 011, <br />020 and 021. No exceedences of WET test limitations were reported for any of 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 />Protection Specialist <br />C:/jhb/C81010/DMR's/2007/Ist Q.doc <br />Cc: Dan Hernandez, DMG <br />Office of Office of <br />Mined Land Reclamation Denver Grand function Durango Active and Inactive Mines <br />