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variable frequency speed pumps would optimize <br /> the energy consumption particularly when it <br /> relates to winter and summer where there is a <br /> substantial difference in ratio. The struc- <br /> ture we are proposing is the lower level of <br /> that structure and would have the floor space <br /> to accommodate all of the Phase IV mechanical <br /> equipment that would not be installed in <br /> Phase I . Providing the floor space was <br /> deemed cost effective. <br /> An issue that came up during the review of <br /> the site plan was there is some standing <br /> water on the far west end of the site. We <br /> contacted the U.S. Army Corp. of Engineers <br /> regarding the plans for mitigation. The <br /> surface acreage of that water does not come <br /> under the Wetlands Mitigations Act because of <br /> it's acreage. Anything less than one acre is <br /> exempt. They are talking about reducing that <br /> requirement to half an acre. The standing <br /> water represents about four-tenths of an <br /> acre. <br /> Mr. Klee reviewed and explained the estimated cost analysis and <br /> did a cost comparison from the 1990 RMC Study to the 1991 Prede- <br /> sign Study. <br /> Hornbostel: What happens to the North Plant when we make <br /> the change to the South Plant? Do we not use <br /> it anymore? <br /> Phare: Those kinds of detailed analysis will come <br /> along, we have two options; we can use this <br /> when our demand exceeds the ability of the <br /> North Plant, but we loose some pumping sav- <br /> ings because we're pumping from a lower plant <br /> versus a higher plant; or run both of them <br /> and let one supply mid-zone and low-zone by <br /> gravity and still have a water supply consid- <br /> eration, i.e.. make use of Harper Lake. We <br /> have a lot of detailed analysis to go through <br /> and I don't know if there is a right answer <br /> or wrong answer. We will be using both <br /> plants in the summer, we need both plants in <br /> the future to meets demands, in the winter it <br /> is somewhat optional. I would prefer to run <br /> both plants. <br /> Hornbostel: So your concern with the pumping in the high <br /> zone is only if something should happen to <br /> the North Plant that you would be prepared if <br /> you had to take over in the South Plant? <br /> 5 <br />