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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 />February 3, 2012 <br />Dennis Jones <br />Seneca Coal Company, LLC. <br />PO Box 670 <br />Hayden, CO 81639 <br />RE: Seneca II Mine, Permit C- 1980 -005 <br />COG-0000221 4 Quarter 2011 Discharge Monitoring Report Review <br />Dear Mr. Jones: <br />The Colorado Division of Reclamation, Mining, and Safety (CDRMS) has reviewed and found the <br />above referenced report to be in compliance with Rule 4.05.13(2). The forth quarter 2011 Discharge <br />Monitoring Report were received by the Division on 26 January 2012; the reports cover the time period <br />from 01 October 2011 through 31 December 2011. <br />Outfall 008 discharged during the forth quarter 2011. Discharge 008 did not exceed any compliance <br />criteria during the quarter. <br />Whole Effluent Toxicity tests were collected for analysis during the third and forth quarters. The tests <br />indicated that the effluent was not acutely toxic to Pimephales promelas or Ceriodaphnia dubia. <br />Thank you for the timely submittal. <br />If you have any questions feel free to contact me. (303) 866 -3567 ext 8134 <br />Sincerely, <br />Jason Musi <br />Environmental Protection Specialist <br />Mined Land Reclamation <br />STATE OF COLORADO <br />COLORADO <br />D I V I S I O N O F <br />RECLAMATION <br />MINING <br />SAFETY <br />John W. Hickenlooper <br />Governor <br />Mike King <br />Executive Director <br />Loretta E. Pineda <br />Director <br />Office of Office of <br />Denver • Grand Junction • Durango Active and Inactive Mines <br />