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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 <br />Phone: (303) 866-3567 <br />FAX: (303) 832-8106 <br />COLORADO <br />D I V I S ION OF <br />RECLAMATION <br />MINING <br />SAFETY <br />April 24> 2009 sill rn f , Jr. <br />Goveernor <br />Harris D. Sherman <br />Brian Watterson Executive Director <br />Twentymile Coal Company Ronald W. Cattany <br />Foidel Creek Mine Division Director <br />Natural <br />29515 Routt County Road No. 27 Resource Trustee <br />Oak Creek, CO 80467 <br />RE: August 2008 Discharge Monitoring Report, CO-GO72758 <br />Dear Mr. Watterson: <br />The Division received Twentymile Coal Company's (TCC) NPDES Discharge Monitoring Report (DMR), <br />for August 2008, Colorado Department of Public Health and Environment CDPS permit no. CO-GO72758 <br />on April 21, 2009. TCC reported that Outfall 001A did not discharge during the month of August 2008. <br />This outfall is for the 6MN pond. This impoundment was constructed without a primary spillway <br />(containment pond). As such, it only discharges when pumped. Pumping by TCC has only occurred when <br />water level in the pond is elevated due to snowmelt. <br />The report is in compliance with Rule 4.15.13(2)(iii). Please assure prompt submittal of the monthly <br />reports. <br />Sincerely, <br />Protection Specialist II <br />C:/jhb/C82056/DMRs/2008/August COG072758.doc <br />Office of Office of <br />Mined Land Reclamation Denver Grand Junction Durango Active and Inactive Mines