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,S ENECi4 <br />Coal Company <br />MAY 2' 'Li <br />iv« + on of K�'�a+nation, <br />Mng and Safety <br />RE: Quarterly Discharge Monitoring Report for Permit CO- 0000 <br />Colorado Department of Health <br />WQCD -PE -B2 <br />4300 Cherry Creek Drive South <br />Denver, CO 80246 -1530 <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 first quarter 2012 discharge monitoring reports for Outfalls <br />005, 006 and 008 to 017. In this quarter, no discharges were observed at Outfalls 009 and 011. <br />Intermittent flows were observed at Outfalls 005, 013 and 014. <br />Vehicle access to Outfalls 005, 008, 009, 010, 015, 016 and 017 was closed this winter due to snow. <br />Monthly visits (at all sites except 015) were performed by snowmobile or snowshoe. For Outfall 015, <br />snow on this long, narrow road prevented safe access, even with a snowmobile, for the entire quarter. <br />Winter time monitoring exemptions exists for these sites (CPDS permit, Part I, page 20). <br />No excursions of effluent limits occurred this quarter. Please contact me at 970 - 276 -5209 if you have any <br />questions. <br />Sincerely, <br />Dennis Jones <br />Hydrologist I <br />cc: Ms. Susan Burgmaier <br />Division of Reclamation, Mining and Safety <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 -2273 <br />April 16, 2012 <br />Seneca Coal Company • P.O. Box 670 • Hayden, Colorado 81639 <br />Telephone (970) 276 -5217 • FAX (970) 276 -5222 <br />Seneca Coal Company <br />