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<br /> 11..1 <br />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 /> 4 <br />