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1000LORADO <br /> .0 Division of Reclamation, <br /> Mining and Safety <br /> Department of Natural Resources <br /> 25 October 2022 <br /> Miranda Kawcak <br /> Moffat County Mining, LLC <br /> 29515 Routt County Road 927 <br /> Oak Creek. CO 80467 <br /> RE: Seneca Mine Permit; C1982057 <br /> Review: Sediment Pond Report 2022 Q2 <br /> Dear Ms. Kawcak: <br /> Thank you for your submittal of the 2022 quarter two Sediment Pond Report for the Seneca HW 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 22 September 2022. Sediment pond inspections <br /> were conducted by Jason Herden of Seneca Coal Company on 20 June 2022. The report is in compliance <br /> with the applicable sections of Rule 4.05.9. <br /> No maintenance issues were noted during the inspection. All ponds hold water throughout the year. Pond <br /> 96 was discharging at 63 gallons per minute (gpm), Pond 915 was discharging at 2.1 gpm, Pond 916 was <br /> discharging at 97 gpm and Pond 917 was discharging at 78 gpm at the time of inspection. Sediment levels <br /> were acceptable. <br /> Thank you for the submission of the 2022 Q2 sediment Pond Report. DRMS has no questions or concerns <br /> related to the 2022 quarter two report. <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 10 <br /> 'f 1876�` <br />