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C.B. MINERALS COMPANY, LLC <br />COAL RIDGE NO. 1 MINE <br />2015 IMPOUNDMENT YEARLY INSPECTION <br />In accordance with Rule 4.05.0(14), all impoundments shall be inspected at least yearly <br />to determine if the impoundment has been maintained as designed, and in accordance <br />with the approved plan and the applicable regulations. This yearly inspection is for the <br />impoundment located at the Coal Ridge No. 1 Mine. <br />On March 31, 2015, 1 performed the required yearly inspection. I, J. E. Stover, have a <br />wide variety experience in the design and construction of earth fill embankments. <br />Nothing was observed during the inspection that would indicate the pond has a <br />potential for failure. There were not any instability, structural weakness or other <br />hazardous conditions. There are no required monitoring procedures or instrumentation <br />other than quarterly and yearly inspections. There are no aspects which might affect <br />stability. The pond was dry. <br />The impoundment has the following estimated capacity: <br />Note: <br />IMPOUNDMENT CAPACITIES - ACRE FEET <br />Water <br />Sediment <br />Total <br />Sediment Pond <br />6.34 <br />0.90 <br />7.24 <br />Capacities are derived from Figure 4.3 -6, Issue No. 1 dated 7127100 and <br />verification of sediment level relative to primary spillway. <br />To the best of my knowledge and belief, the impoundment has been maintained as <br />designed and in accordance with the approved plan and applicable regulations. <br />(9 <br />ilk <br />James E. Sto Date <br />Colorado Profes `I- Engineer_ ♦� <br />Registration No. 1 � ( 0 f� <br />