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Pond 13 collects run-off from the reclaimed north portal. The pond was dry during the <br />inspection. On August 29, 2002, the undersigned certified the water and sediment <br />capacities of pond 13 at 0.80 A-F and 0.34 A-F respectively. There are approximately <br />0.2'of sediment buildup in the pond. This figure is derived from the length of the <br />sediment pole located in the pond minus the design depth. The percent of sediment <br />buildup is 10% (0.2' deep divided by 2.0' maximum depth). Based on this sediment <br />buildup and aerial topo maps, the pond has the following estimated capacity: <br /> Water Sediment Total <br />Pond 13 A-F 0.80 (0.34*0.9)=0.31 1.11 <br />The CBA-1 non-discharging sump collects run-off from Cameo Borrow Area No. 1. <br />The sump was dry during the inspection. The sump has a depth of 3.8 feet. CBA-1 <br />sump has the following estimated capacity which is also Mr. Reschke's certified <br />capacity. <br /> Water Sediment Total <br />CBA-1 Sump A-F 0.18 0.04 0.22 <br />The north decline east and west non-discharging sumps are designed to contain <br />the 25-year 24 hour storm event without discharge. The sumps were dry during the <br />inspection. The sumps were certified by Larry M. Reschke, P.E. on December 21, <br />1992. Based on visual observations during the inspection and a hand level survey of <br />the depth of the sumps, the sumps have excess capacity plus the following design <br />capacity: <br /> Water Sediment Total <br />East Sump - A-F 0.08 N/A 0.08 <br />West Sump - A-F 0.32 N/A 0.32 <br />To the best of my knowledge and belief, the im 6urydr>?ent,ve been maintained as <br />designed and in accordance with the approve,t1.?lah-,ahd,tiO ?i ble regulations. <br />c o ? <br />James E. Stover - ??; o00 i 1/?1 Date <br />Colorado Professional Erfi, , = a°® <br />Registration No. 19230 `°o ppa ?' 3 <br />-3-