2011-04-08_HYDROLOGY - C1996083 (2)

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BOWIE RESOURCES, LLC BOWIE NO. 2 MINE IMPOUNDMENT YEARLY INSPECTION In accordance with Rule 4.05.9(14), all impoundments shall be inspected at least yearly to determine if the impoundment has been maintained as designed, and in accordance with the approved plan and the applicable regulations. This yearly inspection is for the impoundments located at the Bowie No. 2 Mine. On April 2, 2011, 1 performed the required yearly inspection. I, J. E. Stover, have a wide variety experience in the design and construction of earth fill embankments. Nothing was observed during the inspection that would indicate the ponds have a potential for failure. There was no appearance of erosion, instability, structural weakness or other hazardous conditions. There are no required monitoring procedures or instrumentation other than monthly and yearly inspections. There are no aspects which might affect stability. None of the ponds were discharging during the inspection. Pond B had a pool of water about 6-feet below the emergency spillway at approximate elevation of 5946. Because of the water level in the pond, it is not possible to determine the sediment level. It is estimated that Pond B has about 80% of its sediment capacity remaining. The water level of Pond C was at the level of the primary spillway at approximate elevation of 5992. Because of the water level in the pond, it is not possible to determine the sediment level. It is estimated Pond C has had a 25% sediment build-up since it was cleaned out. Pond D had a pool of water standing about 5-feet below the elevation of the emergency spillway at approximate elevation of 5974.7. It is estimated Pond D has had a 10% sediment build-up since it was cleaned out. Pond J was dry with no apparent sediment build-up. Pond K had about was damp with an estimated sediment build-up of 20%. Pond F had about 3-foot of standing water at approximate elevation 5947 with an estimated sediment build-up of 10%.