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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 />January 9, 2008 <br />Brian Watterson <br />Twentymile Coal Company <br />Foidel Creek Mine <br />29515 Routt County Road No. 27 <br />Oak Creek, CO 80467 <br />RE: November 2008 Discharge Monitoring Report, CO-0027154 <br />Dear Mr. Watterson: <br />COLORADO <br />D I V IS I ON OF <br />RECLAMATION <br />MINING <br />SAFETY <br />Bill Ritter, Jr. <br />Governor <br />Harris D. Sherman <br />Executive Director <br />Ronald W. Cattany <br />Division Director <br />Natural Resource Trustee <br />Twentymile Coal Company (TCC) submitted NPDES Discharge Monitoring Report (DMR), November <br />2008, Colorado Department of Public Health and Environment CDPS permit no. CO-0027154 on <br />December 24, 2008. <br />TCC reported that outfall 003A discharged during the last three weeks of November. No parameter <br />exceedances were reported. During an inspection at the mine site the State inspector observed flow at <br />Outfall 5A that was no going through the flume. It was speculated that this trace flow was undercutting the <br />flume but did not appear to be passing through the culvert under the rail road. TCC subsequently sealed <br />the bank on the upstream side of the flume with bentonite. TCC collected water quality samples at Outfall <br />005A for November 2008. No exceedances were reported for Outfall 005A. Review of the DMR form <br />initiates a question on the reported average for Total Suspended Solids. The form shows the 30-day <br />average for TSS as "8 7", yet the daily maximum is 8. The Division suspects the value in the average <br />column to be a typo. Please correct the TSS average value. <br />None of the other outfalls under this NPDES permit discharged during November 2008. <br />The reports are in compliance with Rule 4.15.13(2)(iii). Thank you for prompt submittal of these reports <br />Sincerely, <br />Janet H Binns <br />nvi ental Protection Specialist II <br />C:/jhb/C82056/DMRs/2008/Nov 000027154.doc <br />Office of Office of <br />Mined Land Reclamation Denver • Grand Junction • Durango Active and Inactive Mines