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by the hatched area on Figure 1. There is sufficient soil material from this area to completely <br /> construct the 1330 foot, 25,000 cubic yard volume dam and supplement the three smaller <br /> recharge dams if this area is excavated to a maximum depth of 5 feet. Water diverted into the 20 <br /> acre storage lake will generate recharge accretions and also provide storage for direct release to <br /> the South Platte River for the augmentation of both ditch companies GASP well depletions as <br /> shown in the enclosed Table 1. <br /> The recharge component of the project consists of 3 separate small 2.7 acre recharge basins as <br /> shown in Figure 1. Each basin's dam is no longer then 275 feet and would be constructed by the <br /> excavation of the recharge basin. The excavation for each recharge basin would be limited to 2 <br /> feet in depth to avoid the exposure of groundwater, which is expected to be approximately 7 feet <br /> below the existing land surface. <br /> As can be seen from Table 1, the recharge accretions range from 240 acre-feet in 2003, one year <br /> after the commence or recharge, to 443 acre-feet, 10 years after the commence of recharge. <br /> These estimates represent recharge accretions from the three 2.7 acre recharge basins and <br /> seepage from the 20 acre storage lake. <br /> Table 2 presents the estimated project cost of$1,115,685. This cost represents the initial capital <br /> investment only and does not include annual depreciate and operational costs. The estimated <br /> average annual useable yield for the entire storage/recharge project is 562 acre-feet. Thus,the <br /> capital cost to develop the project is $1,985 per acre-foot, neglecting depreciation and <br /> operational costs. <br /> Sincerely, <br /> LE: G NE 11 <br /> Forrest Leaf, P. <br /> Enclosures <br /> cc: Kim Lawrence <br /> Water Rights • Hydrology • Hydraulics • Water Quality <br /> F:\Old Clients\FIDCO\Eckhardt Prelim Evaluation Letter.doc <br /> 2 <br />