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<br />store raw water, transport raw water to water treatment sites, and distribute the treated water to <br />demand centers. <br /> <br />Table 3-2, which is a combination of Tables VllI-l and VIII-6 from the Harris report, compares the <br />costs for the three alternative damsites, and their overall cost comparison with the addition of <br />conveyance facilities from point of diversion to proposed water treatment plant locations. <br /> <br />The Harris Report recommended the Hidden Valley Reservoir site for the following reasons: <br /> <br />· "The total costs for the Hidden Valley plan are about the same as for Dry Gulch. It <br /> <br />· "The unreliability of the water source (at Hidden Valley) is based on a lack of data for <br />Hidden Valley Creek and Four Mile Creek flows which can be collected to firm up the <br />water supply." <br /> <br />· "Hidden Valley Reservoir is closest to the majority of the future demand which is within <br />the P A WSD service area. " <br /> <br />· "There is some basin runoff in Hidden Valley Creek that can be utilized for up to 10 years <br />before the enlargement of the Dutton Ditch is necessary." <br /> <br />· The fact that the majority of the future water demand is within the P A WSD service area is <br />of critical importance to the selection of a plan. The P A WSD will have the most interest <br />in developing the water treatment facilities for the raw water, which will result in their <br />need to have the water delivered to one of their existing treatment plants. Hidden Valley <br />is the only plan that can reasonably do this. <br /> <br />· "Organizationally, the PAWSD is the only current entity, unless the SJWCD decides to <br />also treat water, that would be in a position to undertake the responsibility of treating the <br />3,300 acre-feet of water that would be developed. Pagosa Springs has an adequate water <br />supply and treatment facilities for their present and future water needs, so it is unlikely <br />that the Town would be interested in developing an enlarged treatment plant. Presently <br />the SJWCD does not plan on treating water. This leaves the P A WSD with the majority of <br />the growth and as the most likely entity to develop the treatment plant. The reservoir <br />should be situated to provide water to a P A WSD treatment plant, so long as the costs are <br />about the same as other plans; which is the case with Hidden Valley versus Dry Gulch. It <br /> <br />3-7 <br /> <br />S9S\PAGOSA FS\S3,TXT <br />10/21/92 mm <br />