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-1 <br />-- SNOWCAP COAL COMPANY <br />~ NORTH AND SOUTH PORTALS <br />r„~:. <br />.~- i IMPOUNDMENT YEARLY INSPECTION <br />l =. ~ <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-theapproved plan and the applicable regulations. This yearly inspection is for the <br />impoundments located at the North and South Portals, Unit Train Loadout, North <br />Decline and Refuse Disposal Areas. <br />On March 27 & 28, 2002, I performed the required yearly inspections. I, J. E. Stover, <br />have a wide variety of experience in the design and construction of earth fill <br />embankments. Nothing was observed during the inspection that would indicate the <br />ponds have a potential for failure. There was no appearance of erosion, instability, <br />structural weakness or other hazardous conditions. There are no required monitoring <br />procedures or instrumentation. Unless noted below in the discussion of each pond, <br />there are no aspects which might affect stability and there is no required maintenance. <br />None of the pondiimpoundments were discharging during the inspection. <br />Ponds 1 and 2 are located at the Unit Train Loadout. They were dry to damp during <br />the inspection. Volume 111, Appendix 13-2, page UTL-5 indicates the combined ponds <br />are designed to contain the 25-year 24 hour event and stilt have significant excess <br />capacity. The ponds were certified by Larry M. Reschke, P.E., on June 1, 1995. Based <br />on the certification statement and current measurements of the sediment poles, the , <br />sediment capacity of the ponds has not been affected since 1995. Therefore, the <br />sediment ponds have significant excess capacity plus the following design capacity: <br /> Water Sediment Total <br />Ponds 1 & 2 - A-F 1.99 0.46 2.45 <br />Pond 4 collects run-off from the north portal. The pond was dry during the inspection. <br />Volume III, Appendix 13-2, page RSN-1 shows that its design water and sediment <br />capacities are 0.38 A-F and 0.04 A-F respectively, Pond 4 was certified by the <br />undersigned on March 10, 2000. The attachment to the certification statement shows <br />the pond has significant excess capacity plus the following design capacity: <br /> Water Sediment Total <br />Pond A - A-F 0.38 0.04 0.42 <br />-1- <br />