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ANNUAL CERTIFICATION OF SEDIMENT POND <br />WEST RIDGE POND <br />September 29, 1997 <br />I, the undersigned, certify that the West Ridge Pond, based on observations made during visual <br />inspection, is structurally sound and shows no signs of hazardous conditions. The sediment level in the <br />stricture is currently at 85% of the total pond capacity. A SEDCAD+ computer simulation of the pond's <br />performance has been conducted, ensuring the pond is capable of treating the runoff from the l0yr-24hr <br />storm event. <br />~~~, 3~ <br />Kirk Allen Zabel <br />Mining Engineer <br />Colorado P.E. #28855 <br />.:~ -- _ _. <br />:: - :: <br />- ~ -\~: <br />,.~; .- <br />_ : ;~,~~ <br />