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August 25, 2016 C-1981-028/Keenesburg Strip Mine RAR <br />E ESH <br />MINE <br />COORS NERDY COL1I My <br />—d&— <br />Photo 1 (left): Keensburg mine identificaiton sign. <br />ROADS Rule 4.03 <br />Construction 4.03.1(3), 4.03.2(3); Drainage 4.03.1(4), 4.03.2(4); Surfacing and <br />Maintenance 4.03.1(5) and (6) 4.03.2(5) and (6). <br />Roads in and around the facilities were in good condition and appeared to function adequately <br />although no recent precipitation events had occurred. There were a couple of rutted areas. <br />HYDROLOGIC BALANCE- Rule 4.05 <br />General Requirements 4.05.1; Effluent Standards 4.05.2; Divergence and Conveyance of Overland <br />Flow 4.05.3; Diversions 4.05.4; Sediment Control Measures 4.05.5, 4.05.6,• Discharge <br />Structures 4.05.7; Impoundments 4.05.9; Ground Water Monitoring4.05.13; Underground Mine <br />Entry 4.05.10; Surface and Ground Water Monitoring 4.05.13; Stream Buffer Zones 4.05.18: <br />o Groundwater monitoring is typically carried out in April and September. The next date for <br />measurement is 1 September 2016. <br />o Both sediment pond 2 and the dugout pond were holding water. <br />Both the Dugout pond and Sediment Pond #2 were overgrown with cattails and should be <br />cleaned out during winter freeze, (maintenance item #1). <br />o B- Pit was also holding water. <br />Number of Partial Inspection this Fiscal Year: 1 <br />Number of Complete Inspections this Fiscal Year: 1 <br />Page 3 of 9 <br />