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We have accommodated the existing site, the <br /> Community Ditch remains intact and the addi- <br /> tional land acquisition has been eliminated. <br /> The plus to that is the additional land <br /> • acquisition and earthwork related to the <br /> relocation of the Community Ditch which has a <br /> high dollar value representing over $300, 000 <br /> is eliminated. <br /> The report goes into detail relating to the <br /> incremental phasing of what each component <br /> identified in Phase I will accommodate <br /> through the future phases . Some of the <br /> components will only accommodate Phase I, <br /> some will accommodate all the way through <br /> Phase IV. The chemical feed building for the <br /> most part will accommodate everything up <br /> through Phase IV. There is potential to <br /> expand on the west end and that is to accom- <br /> modate additional amount of storage at about <br /> Phase III. This will also provide the abili- <br /> ty to expand with respect to drinking water <br /> regulations. <br /> Operational cost of the first phase through <br /> Phase IV; pumping is a major portion of the <br /> operational cost as is piping and the filter <br /> backwash requirements . We analyzed three <br /> different options for the filter backwashing <br /> requirements; first option was to pump into <br /> the high zone storage tank system by Marshall <br /> Lake and drag the flow back from that to back <br /> wash the filters; we looked at having on site <br /> pumping system, which would pump from storage <br /> right on the site; and the third option was <br /> that we looked at an off site tank and an <br /> interconnecting pipeline, whereby the tank <br /> would be dedicated only to backwash. Analy- <br /> sis indicated that pumping into the high zone <br /> is cost effective through about Phase II <br /> possibly through Phase III. The only draw- <br /> back is if there were any problems with the <br /> existing high zone storage tank or the inter- <br /> connecting pipeline. It would be cost effec- <br /> tive to provide the in-building backup pump <br /> system; it would be needed in Phase III and <br /> used as the redundant backup arrangement for <br /> that high zone storage supply source. <br /> The single highest energy consumption that <br /> occurs at the facility is pumping into the <br /> high zone before it enters into the distribu- <br /> tion systems. We analyzed a couple of op- <br /> tions, there is no way around the pumping <br /> requirement. It was determined that the <br /> • <br /> 4 <br />