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S ENECA <br />Coal Company <br />Seneca Coal Company <br />July 24, 2012 <br />Colorado Department of Health RECEIVED <br />WQCD -PE -B2 <br />4300 Cherry Creek Drive South AUG 3 0 2012 <br />Denver, CO 80246 -1530 <br />Division of & Safety ion, <br />RE: Quarterly Discharge Monitoring Report for Seneca Coal Company, Permit C-`b00221 <br />Dear Sir or Madam: <br />Pursuant to the quarterly reporting requirements contained in Colorado Discharge Permit CO- 0000221 for <br />the Seneca Mine Complex, enclosed find the second quarter 2012 discharge monitoring reports for <br />Outfalls 005, 006 and 008 to 017. In this quarter, intermittent discharges were observed at Outfalls 005 <br />and 013. No flows were observed at Outfalls 009, 011 and 014. All other Outfalls discharged <br />continuously. <br />No excursions of any effluent limits occurred this quarter. Please contact me at 970 - 276 -5209 if you have <br />any questions. <br />cc: Ms. Susan Burgmaier <br />Division of Reclamation, Mining and Safety <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 -2273 <br />Sincerely, <br />Dennis Jones <br />Hydrologist I <br />Seneca Coal Company • P.O. Box 670 • Hayden, Colorado 81639 <br />Telephone (970) 276 -5217 • FAX (970) 276 -5222 <br />