2016-04-15_HYDROLOGY - C1996083 (6)

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BOWIE RESOURCES, LLC BOWIE NO. 2 MINE 2016 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 March 21, 2016, 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 4 -feet below the emergency spillway at approximate elevation of 5948. Sediment was removed during the previous quarter. Pond B needs dewatered. The water level of Pond C was at the level of the pond bottom at approximate elevation 5990. Pond C has 100% of its sediment capacity remaining. Pond D had a pool of water standing about 2 -feet above the pond bottom at approximate elevation of 5972. Estimate 10% sediment buildup. Pond F had a pool of water standing about 5 -feet below the elevation of the emergency spillway at approximate elevation 5949. Sediment build up could not be determined because of the pool of water. Pond J had a pool of water at approximate elevation of 5850. Sediment build up could not be determined because of the pool of water. Estimate sediment build up is 40%. Pond K had was damp with an estimated sediment build up of 20%. There are no mud pits open.