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LODESTAR ENERGY, INC. <br />MUNGER CANYON MINE AND LOMA LOADOUT <br />IMPOUNDMENT YEARLY INSPECTION <br />In accordance with Rule 4.05.9(14), all impoundments shall be inspected at least yearly to <br />determine if the impoundment has been maintained as designed, and in accordance with the <br />approved plan and the applicable regulations. This yearly inspection is for the impoundments <br />located at the Munger Canyon Mine and Loma loadout. <br />On March 26, 2002, I performed the required yearly inspections. I, J. E. Stover, have a wide <br />variety of experience in the design and construction of earth fill embankments. Nothing was <br />observed during the inspection that would indicate the ponds have a potential for failure. There <br />was no appearance of erosion, instability, structural weakness or other hazardous conditions. <br />There are no required monitoring procedures or instrumentation. <br />Appendix M lists small area exemptions (SAEs) where run-off is controlled by a sediment trap. <br />The sediment traps are now categorized as impoundments. The SAES where run-off is filtered <br />through a silt fence are not considered impoundments. <br />SAE-1 located at the portal is a sediment trap/impoundment. It has a required capacity of 4,200 <br />cubic feet. The size of this impoundment meets or exceed the required capacity. This <br />impoundment has been in place many years and has not shown signs of instability even though <br />the side slopes on the impoundment are at best 1.5H:1 V on both the inside and outside slopes. <br />These steep slopes do not meet the requirements of Rule 4.05.9(7)(e). The steep slopes may <br />affect the stability of this impoundment. Sediment should be removed from this SAE. <br />SAE-2 contains the run-off from the reclaimed Loma loadout . The associated impoundment has <br />a required capacity of 7,500 cubic feet. The loadout was reclaimed during 2001 so the berm to <br />control run-off was reconstructed. The new run-off containment berm meets or exceeds the <br />required capacity. A short silt fence is located in the containment berm to provide for overflow in <br />the unlikely event one were to occur. There are no aspects of this impoundment which might <br />affect stability and there is no required maintenance. <br />SAE-3 contains run-off from a soil stockpile at the portals. Sedimentation control is provided by a <br />silt fence so this SAE is not considered an impoundment. <br />SAE-4 contains the run-off from a topsoil stockpile located on the road to the Munger Canyon <br />mine. The associated impoundment does not have the required capacity of 450 cubic feet. The <br />berms that route run-off to the impoundment and-the impoundment have been obliterated by <br />recent storm events. However, this topsoil stockpile is well vegetated so untreated drainage from <br />the topsoil stockpile should contribute the same amount or fewer suspended solids to streamflow <br />or runoff outside the permit area as untreated drainage from the natural surrounding pre-mining <br />area. <br />SAE-5 contains run-off from a former fan site at the portal area. Sedimentation control is <br />provided by a silt fence so this SAE is not considered an impoundment. <br />With the exceptions noted eta ~{~@'~ .the best of my knowledge and belief, the impoundments <br />at the Munger Canyon M~~F,t~~a~~ut have been maintained as designed and in <br />accordance with the ap~oi~esl;plan arfcf able regulations. <br />r~~~lames~Stove~ ! Date <br />.:.- <br />G~-; ,a l <br />...• <br />