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Z <br />POND CERTIFICATION <br />SEDIMENTATION POND <br />"M3-N" <br />The following table presents a comparison of as-built and design parameters <br />for Sedimentation Pond "M3-N". This information is provided in response to <br />Rule 4.05.9 (1 and 8). <br />PARAMETER DESIGN AS-BUILT <br />Base Elevation 6659.0 6659.0 <br />Sediment Storage Elevation 6663.5 6663.5 <br />Outlet Culvert Invert Elevation 6664.8 6664.9 <br />10 Year-24 Hour Event Elevation 6669.6 6669.6 <br />Emergency Spillway Invert Elevation. 6670.7 6670.2 <br />Embankment Elevation 6673.5 6672.2 <br />Emergency Spillway Width 10.0 11.5 <br />Emergency Spillway Depth 2.8 2.0 <br />I, Michael J. Kondelis, a registered engineer in the State of Colorado, do <br />hereby certify that to the best of my knowledge and belief the Mine 3 <br />Sedimentation P~,tvd~;;R~x~~;; was constructed according to the approved design. <br />,~v~~,~ l ~ ~ ~ ~ <br />DATE <br />Col or~($,7~. No. <br />. ty~ <br />