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:....:-':.'..."'-'::.'.'::.:.. ..'.rnlM... I'Nl:M R-3 Table 2 -- Analysis of Recreational Use Improvement Options Extend boat ramp R,4 Buy water to store R.5 Transbasin diversion from White River Extend existing boat ramp 60 linear ft. (from a bottom elev. of 5920.0 ft. M.S.L. down to about elev. 5912). Purchase non-Project water rights from willing sellers; the consumptive use of those rights would be stored in RG Reservoir. Pump water about 10 miles from the White River mainstem to headwaters of Rifle Cr.. or build 8 collection system on higher elevation White R. tributaries & pump or use a tunnel to Rifle Cr. (Since ability to obtain water rights from headwaters is unknown, this option assumes pumping from mainstem of the White River. ..,..."... '" - -.. ., 1l~"iI~i"~II! This extension would allow boat launching for an additional 16 - 46 days based on historic records of August irrigation usage. There are not many rights avaUsble for purchase. It would be difficult or impossible to assemble enough to make up the several thousand af needed. Providing 10 cfs pumping capacity would yield 2000 af assuming 100 days of operation annually. This 2000 af would be stored in RG Reservoir. Possibly, the effects of massive land retirement needed to acquire sufficient water to make a difference in RG Reservoir 22 For 60 Iinesr ft. extension. about $9,800 total. Therefore, 8 minor annu81 east. Initial cost per af could range from $1,000 or 2,000 up to $10,000. This would equate to $78 to $780 per af per year. - Est. construction cost = $7,265,000 . Annual pumping cost for 9.4 million kWh - $509,000. . Total annual cost including O,M & R = $1,132,000 or $566/acre.ft./yr (for 2,000 af) . Full reservoir (el. 5960) surface area is 359 acres. . At bottom of exiating ramp leI. 5,9201, the surface area is 179 ae. . At elev. 5912, aree would be 144 ac. - The quality of the experience & capacity of RG Reservoir for recreational users decreases as the water surface area decreases. - Boati safet is a concern. - Purchasing large blocks of in-basin water could have severe impacts on agriculture and the local economy. . Since most water rights are small, this would require numerous court approved change of use decrees. . Total lift would be about 2,360 ft. - Use 6 booster Ifft stations. - Pipe length - 10 miles . Assumed built on public land; no land costs are included. - New water right. would be needed lcost is not included in estimate). - Potential instream flow conflicts.