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C.B. MINERALS COMPANY, LLC <br />COAL RIDGE NO. 1 MINE <br />IMPOUNDMENT YEARLY INSPECTION <br />In accordance with Rule 4.05.9(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 April 7, 2007, I 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 ins e~ction that would indicate the fond has a __ _ <br />potential for failure'. There was no appearance of erosion, instability, structural <br />weakness or other hazardous conditions. There are no required monitoring procedures <br />or instrumentation other than quarterly and yearly inspections. There are no aspects <br />which might affect stability and there is no required maintenance. The sediment pond <br />was dry. <br />The sediment pond has the following capacity: <br />IMPOUNDMENT CAPACITIES -ACRE FEET <br /> Water Sediment Total <br />Sediment Pond 6.34 0.90 7.24 <br />Note: <br />Capacities are derived from Figure 4.3-6, Issue No. 1 dated 7/27/00 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 oit~,tt~'gved plan and applicable regulations. <br />• ~ oeeoae~aoJ'j0 <br />0 Voo°Q ~G-~a~O a <br />~A : '} • 4-0 ~ ; Sri <br />.sow= <br />Jame3~^`~atover ,~ 3~ Date <br />Colorado'b~~~~g~~fi'd~ °r`iai>~S'~igineer <br />Registration 1~t~a~ 0 <br />