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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />Initial: <br /> <br />Expansion of existing plant to 1.0 MGD capacity. Project to inclUde improvements <br />similar to those included in the 1985 documents - except modify to reflect recent <br />equipment developments and to reflect the new surface water treatment rule. <br />Replace the 4 and 6-inch raw transmission lines with 14-inch pipe, thereby raising <br />the hydraulic control elevation so that water can be routed by gravity to the <br />operating reservoir. <br /> <br />Estimated Project Budget $650,000. <br /> <br />Future: <br /> <br />Expand plant in either 0.5 MGD modules, or as one project. Expansion need not <br />be similar to existing plant configuration. Approximate Cost $1,200,000. <br /> <br />Alternate C-2 <br />For this alternative a new plant would be constructed at a new site. The most probable location <br />would be below Cooley Reservoir, so as to take advantage of the head available. <br /> <br />A second option as to plant site would be southwest of the operating reservoir, at an elevation <br />of about 6,300 feet. This is the site studied by CH2M HiII('6), however, it was llsed in conjunction <br />with a new pumped diversion raw water supply. Review of this site indicates that it would be on <br />steep, relatively inaccessible, terrain. <br /> <br />A third option would be to locate the plant just southwest of the present tank, at elevation 6040. <br />This would allow gravity feed of finished water into the system. <br /> <br />For initial construction of a 1.0 MGD plant, at €lither location, the project cost would be over $1.5 <br />million. <br /> <br />Alternate C-3 <br />This altemate would result in two permanent plants. The existing plant would be expanded to <br />1.0 MGD capacity initially (project similar to that described in Alternate C-1). The future plant <br />would have approximately 1.0 MGD capacity and be located just below Cooley Reservoir. This <br />plant could supply the High Zone directly by gravity, and would furnish supplemental water to <br />the Base Zone. <br /> <br />Water Treatment Plant Conclusions <br />The initial plant expansion/improvement project should be at the present site, as described under <br /> <br />Alternative C-1. <br /> <br />7Q-OaO.035:MSTR.PLN <br /> <br />111-18 <br />