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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 />C O L O RA D O <br />Denver, Colorado 80203 D IV IS I O N OF <br />Phone: (303) 866-3567 RECLAMATION <br />FAX: (303) 832-8106 M I N I N G <br /> <br /> SAFETY <br /> Bill Ritter, Jr. <br />September 4, 2009 Governor <br /> Harris D. Sherman <br /> Executive Director <br />Brian Watterson <br /> Ronald W. Cattany <br />Twentymile Coal Company Division Director <br />Foidel Creek Mine Natural Resource Trustee <br />29515 Routt County Road No. 27 <br />Oak Creek, CO 80467 <br />RE: Second Quarter 2009 Discharge Monitoring Report, CO-0042161 <br />Dear Mr. Watterson: <br />Twentymile Coal Company (TCC) submitted NPDES Discharge Monitoring Report (DMR) for the Second <br />Quarter 2009, Colorado Department of Public Health and Environment CDPS permit no. CO-0042161on <br />July 31, 2009. <br />Outfall; 001 A/001 W/MON 1 did not discharge in April, discharged three out of four weeks in May, and <br />discharged every week in June. No exceedances were reported by TCC. However, an incorrect parameter <br />list was analyzed by the laboratory. Parameters not analyzed by the lab included; cadmium, silver, <br />manganese, and copper. WET test analysis was also included with the DMR. A sample collected on June <br />17, 2009 passed the WET test for Ceriodaphnia dubia. Although the analyzed value did not exceed the <br />standard, the value 30-day average for total recoverable iron, 1030 ug/L, was approaching the limit of 1047 <br />ug/L. <br />Thank you for prompt submittal of this report. <br />Sincerely, <br /> <br />H. <br />Protection Specialist II <br />C:/jhb/C82056/DMRs/2009/CO-0042161/2'd q.doc <br />Office of Office of <br />Mined Land Reclamation Denver • Grand Junction • Durango Active and Inactive Mines