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1000LORADO <br /> .0 Division of Reclamation, <br /> Mining and Safety <br /> Department of Natural Resources <br /> 26 October 2022 <br /> Miranda Kawcak <br /> Moffat County Mining, LLC <br /> 29515 Routt County Road 927 <br /> Oak Creek. CO 80467 <br /> RE: Yoast Mine Permit; C1994082 <br /> Review: Sediment Pond Report 2022 Q3 <br /> Dear Ms. Kawcak: <br /> Thank you for your submittal of the 2022 quarter three Sediment Pond Report for the Yoast Mine. The <br /> Colorado Division of Reclamation, Mining and Safety (The Division), has reviewed the above referenced <br /> report. The report was received by the Division on 26 October 2022. Sediment pond inspections were <br /> conducted by Miranda Kawcack of Seneca Coal Company on 13 September 2022. The report is in <br /> compliance with the applicable sections of Rule 4.05.9. <br /> With the exceptions of previously identified maintenance/monitoring items, no maintenance issues were <br /> noted during the inspection. All ponds hold water throughout the year. Pond 912 was discharging at the <br /> time of inspection, outflow was 35 gallons per minute (gpm). Sediment levels were acceptable. <br /> Maintenance/monitoring items noted in the report comprise the rusting outlet culvert and cattails at Pond <br /> 910. DRMS understands that Seneca Coal Company monitors these items on a regular basis. <br /> Thank you for your timely submission of the 2022 Q3 Sediment Pond Report and engineers certification. <br /> DRMS has no questions or concerns at this time. <br /> Best Regards, <br /> Robin Reilley,M.S. GISP <br /> Environmental Protection Specialist 11 <br /> Robin.reilleykstate.co.us <br /> F'COI <br /> Physical: 1313 Sherman Street, Room 215, Denver, CO 80203 P 303.866.3567 F 303.832.8106 �4 o0 <br /> Mailing: DRMS Room 215, 1001 E 62nd Ave, Denver, CO 80216 https://drms.colorado.gov Fe ��� <br /> Jared S. Polis, Governor I Dan Gibbs, Executive Director I Virginia Brannon, Director I * * <br /> 'f1876* <br />