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• The estimated water capacity of Pond 6 is less than the original design requirement of <br />1.49 acre feet. However, calculations presented in Volume III, Appendix 13-2, page <br />CDRA-1-iii, based on the partially reclaimed and vegetated refuse pile, indicate the <br />required water capacity of Pond 6 is only 0.68 acre-feet. <br />• <br />Pond 7 collects run-off from the North Decline. The pond was dry during the <br />inspection. Volume III, Appendix 13-2, page NDEC-1 shows that its design water and <br />sediment capacities are 0.23 A-F and 0.03 A-F respectively. It is a dugout pond which <br />must be dewatered with a pump. There is little if any sediment build up in the pond. <br />Therefore, the pond's capacity is obtained from the most recent pond certification <br />performed by Larry M. Reschke, P.E., on June 1, 1995. <br /> Water Sediment Total <br />Pond 7 - A-F 0.34 N/A 0.34 <br />Pond 8 collects run-off from the South Portal and the RSRDA. The pond was dry <br />during the inspection. Volume III, Appendix 13-2, page RSS-1 shows that its design <br />water and sediment capacities are 1.79 A-F and 0.83 A-F respectively. It is a dugout <br />pond which must be dewatered with a pump. There is no sediment buildup in the pond. <br />Therefore, the pond's capacity is obtained from the most recent (2002) aerial survey. <br /> Water Sediment Total <br />Pond 8 - A-F 3.96 N/A 3.96 <br />Pond 9 collects run-off from the South Portal and RSRDA. The pond was dry during <br />the inspection. Volume III, Appendix 13-2, page RSS-15 & 15i shows that its design <br />water and sediment capacities are 0.33 A-F and 0.33 A-F respectively. There are <br />approximately 2.8 feet of sediment buildup in the pond. This figure is derived from the <br />length of the sediment pole minus the design depth. The percent of sediment buildup is <br />65% (2.8' deep divided by 4.3' maximum depth). Consideration should be given to <br />removing sediment during the year. Based on this sediment buildup and 2002 aerial <br />topo maps, the pond has the following estimated capacity: <br /> Water Sediment Total <br />Pond 9 - A-F 0.76 0.16 0.92 <br />Pond 10 collects run-off from CRDA-2. The pond was dry during the inspection. <br />Volume III, Appendix 13-2, page CRDA2-1 shows its design water and sediment <br />capacities are 1.37 A-F and 1.23 A-F respectively. There are approximately 3-feet of <br />• sediment buildup in the pond. This figure is derived from the average length of the two <br />-2- <br />