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1000LORADO <br /> .0 Division of Reclamation, <br /> Mining and Safety <br /> Department of Natural Resources <br /> 6 May 2022 <br /> Miranda Kawcak <br /> Moffat County Mining, LLC <br /> 29515 Routt County Road#27 <br /> Oak Creek, CO 80467 <br /> RE: Yoast Mine Permit; C1994082 <br /> Review: Sediment Pond Report 2022 Q1 <br /> Dear Ms. Kawcak: <br /> Thank you for your submittal of the 2022 quarter one Sediment Pond Reports for the Yoast Mine. The <br /> Colorado Division of Reclamation, Mining and Safety (The Division) has reviewed the above referenced <br /> reports. The reports were received by the Division on 5 May 2022. Sediment pond inspections were <br /> conducted by Jason Herden of Seneca Coal Company. The report is in compliance with the applicable <br /> sections of Rule 4.05.9. Ponds were inspected 23 March 2022, and were snow covered at the time of <br /> inspection. <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. Only Pond12 was discharging at the <br /> time of inspection, outflow was 44.7 gallons per minute (gpm). Sediment levels were acceptable. <br /> Maintenance/monitoring items noted in previous the report comprise a known native spring near the Pond <br /> 013 dam, and the rusting outlet culvert at Pond 010. DRMS understands that Seneca Coal Company <br /> monitors these items on a regular basis. <br /> Thank you for the timely submission of the 2022 Q1 sediment Pond Report. DRMS has no questions or <br /> concerns at this time. <br /> Best Regards, , <br /> Robin Reilley,M.S. GISP <br /> Environmental Protection Specialist 11 <br /> Robin.reilley_kstate.co.us <br /> 4F COlO <br /> Physical: 1313 Sherman Street, Room 215, Denver, CO 80203 P 303.866.3567 F 303.832.8106 ��`_ = <br /> Mailing: DRMS Room 215, 1001 E 62nd Ave, Denver, CO 80216 https://drms.colorado.gov <br /> Jared S. Polis, Governor I Dan Gibbs, Executive Director I Virginia Brannon, Director <br /> 'F18764L <br />