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ANNUAL CERTIFICATION OF IMPOUNDMENT <br />WEST RIDGE CHECK DAM STRUCTURES <br />(9!26/96) <br />I, the undersigned, certify that the West Ridge Check Dam Structures, numbers 6-21, based on <br />observations made during visual inspection, aze structurally sound and capable of performing the <br />velocity check function that they were designed for. The features do impound water and have <br />storage capacity to capture sediment from surface water runoff. The structures will, by design, <br />eventually fill with sediment and cease to impound water. The structures were built, and <br />reconstructed, at a minimum, to meet design criteria outlined in the Edna Mine Permit (OfC-SO- <br />001). <br />~~- <br />David L. Beverlin <br />Resident Engineer <br />P.E. ~Y24739 <br />