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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 />C O L O RA D O <br />D I V I S I O N o f <br />Denver, Colorado 80203 <br />RECLAMATION <br />Phone: (303) 866 -3567 <br />M IN I NIN G <br />N <br />FAX: (303) 832 -8106 <br />SAFETY <br />May 10, 2013 <br />John W. Hickenlooper <br />Governor <br />Mr. Jerry Nettleton <br />Moffat County Mining, LLC <br />Mike King <br />29515 Routt County Road 427 <br />Executive Director <br />Oak Creek, CO 80467 <br />Loretta E. Pineda <br />Director <br />RE: Williams Fork Mines (Permit C- 1981 -044) <br />Williams Fork Mines 1st Quarter 2013 DMR Submittal <br />Mr. Nettleton <br />The Division has completed its review of Williams Fork Mines' first quarter discharge monitoring report of 2013 and <br />finds it in compliance of the following rules: <br />Rule 4.05. 131(2)(a)(1) — samples were measured accurately with quantity and quality recorded. <br />Rule 4.05.13(2)(a)(ii) — Two indications of noncompliance with the permit condition or applicable standards occurred. A <br />written notice of two exceedances within the first quarter discharge monitoring report of 2013 was noted. Outfall 022A <br />had an exceedance of the 30 day average for TSS. The 30 day average for TSS was documented at 45 mg /L versus the <br />limit of 35 mg /L. Additionally, the 7 day TSS max was 83 mg /L versus the limit of 70 mg /L. It is noted within Williams <br />Fork Mines' 1St Quarter 2013 DMR submittal that the exceeding results were potentially caused from the result of the <br />pump being off and later restarting. This may have flushed material from the sedimentation ponds. <br />Rule 4.05.13(2)(a)(iii) — reports were received quarterly and filed with the Division within 90 days of the sample <br />collection. <br />If you have any questions, feel free to contact me. <br />Sincerely, <br />Zach Trujillo <br />Environmental Protection Specialist <br />(303) 866 -3567 ext. 8164 <br />Zach.Trujillo @state.co.us <br />Office of Office of <br />Mined Land Reclamation Denver • Grand Junction • Durango Active and Inactive Mines <br />