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July 22,2020 C-1981-028/Keenesburg Strip Mine RDZ <br /> Inspection Topic Summary <br /> NOTE: Y=Inspected N=Not Inspected R=Comments Noted V=Violation Issued NA=Not Applicable <br /> N -Air Resource Protection NA -Roads <br /> N -Availability of Records R -Reclamation Success <br /> NA -Backfill&Grading R -Revegetation <br /> NA -Excess Spoil and Dev. Waste NA - Subsidence <br /> NA -Explosives Y - Slides and Other Damage <br /> N -Fish&Wildlife R - Support Facilities On-site <br /> R -Hydrologic Balance R - Signs and Markers <br /> R -Gen. Compliance With Mine Plan NA - Support Facilities Not On-site <br /> N -Other NA - Special Categories Of Mining <br /> NA -Processing Waste NA -Topsoil <br /> CONIMENTS <br /> A partial inspection was conducted by Rob Zuber of DRMS. Danny Kipp of Coors Energy Company(CEC)was <br /> on site,but did not accompany Rob on the field inspection. <br /> The weather was clear and hot. The ground was dry. <br /> The activity of spreading mulch on the reclamation at the site has been completed by Coors Energy staff. <br /> HYDROLOGIC BALANCE -Rule 4.05 <br /> Drainage Control 4.05.1,4.05.2,4.05.3; Siltation Structures 4.05.5,4.05.6; Discharge Structures 4.05.7,4.05.10; <br /> Diversions 4.05.4;Effluent Limits 4.05.2; Ground Water Monitoring 4.05.13; Surface Water Monitoring 4.05.13; <br /> Drainage —Acid and Toxic Materials 4.05.8;Impoundments 4.05.6,4.05.9; Stream Buffer Zones 4.05.18: <br /> Water levels in the two ponds(Sediment Pond 2 and Dugout Pond)were well below spillways,and neither pond <br /> was discharging during the inspection. There were no signs that they had discharged recently.As usual,they both <br /> contained large amounts of riparian vegetation.No problems were observed with the two ponds. <br /> GENERAL MINE PLAN COMPLIANCE: <br /> Almost the entire length of the northern boundary of the site (down gradient)was observed,and no signs of <br /> pollutant loading from the mine site,or any other problems,were seen. <br /> RECLAMATION SUCCESS -Rule 4.15,Rule 3: <br /> No significant problems were observed at the reclaimed areas. <br /> Number of Partial Inspection this Fiscal Year: 1 <br /> Number of Complete Inspections this Fiscal Year: 0 <br /> Page 2 of 8 <br />