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The impoundments have the following estimated capacities: <br />IMPOUNDMENT CAPACITIES - ACRE FEET <br />Water <br />Sediment <br />Total <br />Pond 1 <br />0.44 <br />0.26 <br />0.70 <br />Pond 2 <br />0.41 <br />0.11 <br />0.51 <br />Pond 3 <br />0.42 <br />0.10 <br />0.52 <br />Pond 4 <br />0.50 <br />0.10 <br />0.60 <br />Refuse <br />0.53 <br />0.14 <br />0.67 <br />Timber <br />0.37 <br />0.27 <br />0.64 <br />West Mine W-1 <br />0.54 <br />0.25 <br />0.79 <br />West Mine W-2 <br />0.67 <br />0.38 <br />1.05 <br />Coal Stockpile SH -133 <br />0.19 <br />0.16 <br />0.35 <br />Loadout <br />N/A <br />N/A <br />1.8 <br />Notes: <br />1. Capacities are obtained from the permit document except for the ponds located <br />at the west mine. <br />2. The capacity of the west mine impoundments, Ponds W-1 and W-2 were <br />certified by the undersigned on August 29, 2002. <br />3. The sediment capacity of the ponds may be less than shown in the table <br />because of interim sediment accumulation. <br />4. N/A means not available or, not applicable. <br />To the best of my knowled�nd,belief, thQ J- oundments have been maintained as <br />designed and in accordar� ,�iith the approi0d'ilan and applicable regulations. <br />Date <br />Colorado`°f Vetjsjgr, � Engineer <br />Registration Ko'.'' 230 <br />-2- <br />