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July 26, 2019 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 N -Roads <br /> N -Availability of Records N -Reclamation Success <br /> NA -Backfill&Grading N -Revegetation <br /> NA -Excess Spoil and Dev. Waste NA - Subsidence <br /> NA -Explosives N - Slides and Other Damage <br /> N -Fish&Wildlife N - Support Facilities On-site <br /> N -Hydrologic Balance N - Signs and Markers <br /> Y -Gen. Compliance With Mine Plan NA - Support Facilities Not On-site <br /> N -Other NA - Special Categories Of Mining <br /> NA -Processing Waste R -Topsoil <br /> COMMENTS <br /> A partial inspection was conducted by Rob Zuber of DRMS and Mark Quimby and Danny Kipp of Coors Energy <br /> Company(CEC). The weather was clear and warm. The ground was mostly dry. The entire focus of the <br /> inspection was to determine if topsand depths in certain areas are sufficient; at all 14 locations that were checked, <br /> the depths were sufficient. Please see the TOPSOIL section of this report for more information. <br /> TOPSOIL—Rule 4.06 <br /> Removal 4.06.2; Substitute Materials 4.06.4(4); Storage and Protection 4.06.3; Redistribution 4.06.4: <br /> Danny Kipp and Mark Quimby used a gas-powered auger to drill holes at 14 locations within the following <br /> reclaimed areas: <br /> • B-Pit area(2 holes) <br /> • The Long Term Spoil Area(3 holes) <br /> • Former roads (9 holes). <br /> The hole locations are shown on the maps in this report. Significant portions of the B Pit area and Long Term <br /> Spoil Area have not been completely reclaimed. Topsand depths in these areas will need to be checked at a later <br /> date. <br /> Per the Keenesburg Mine Permit Application Package,the required depth of topsand within the Long Term Spoil <br /> Area is 15 inches, and is 24 inches in other areas including the B Pit area and roads. All of the topsand depths <br /> measured during this inspection met these requirements. <br /> Number of Partial Inspection this Fiscal Year: 1 <br /> Number of Complete Inspections this Fiscal Year: 0 <br /> Page 2 of 4 <br />