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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 />May 4, 2009 <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: First Quarter 2009 Discharge Monitoring Report, COG-850048 <br />Dear Mr. Watterson: <br />COLORADO <br />D I V I S ION 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 Reports (DMR), for CPDS <br />permit COG-850048 on April 30, 2009, for first quarter 2009. CPDS permit COG-850048 was issued to <br />TCC for emergency mine water discharge from the l ORT borehole (one outfall 001 A/001 W) in order to <br />comply with MSHA direction. COG-85-0048 was issued 8/28/2008. TCC reported that Outfall <br />001 A/001 W discharged each week during January through February, and part of March 2009. Equipment <br />failure resulted in no discharge from Outfall 001A/001W following March 17, 2009. The pump was <br />repaired and pumping from this Outfall resumed on April 1, 2009. <br />TCC measured parameter exceedances for total recoverable Iron for first quarter 2009. These exceedances <br />were reported to CDPH&E. This is the third consecutive quarter that this outfall has exceeded the total <br />recoverable iron standard. TCC reported that they are coordinating with consultants for a treatment <br />method for this location. <br />This outfall also exceeded the 30-day average for TDS, but passed WET testing. The operator is <br />investigating treatment options for this outfall. <br />The report is in compliance with Rule 4.15.13(2)(iii). Thank you for your prompt submittal. <br />Sincerely, <br />Protection Specialist II <br />C:7j`hVe82056/DMRs/2009/1st Quarter COG-850048.doc <br />Office of Office of <br />Mined Land Reclamation Denver • Grand Junction • Durango Active and Inactive Mines