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<br />. <br /> <br />that this well field could supply the entire future demand and would <br />be the least expensive of all the various alternatives to construct. <br />A decided advantage of this proposal, in addition to lower capital cost, <br />is that the pumped water would always remain above the freezing level <br />at the point of discharge. However, a distinct disadvantage is that <br />tests to date have indicated that the pumped water would be of a con- <br />siderably poorer quality than surface waters diverted from the White <br />River at or above the same point (by about 100 parts per million). The <br />increased hardness of the well water would have some adverse effect on <br />the distribution system and upon household uses. However, the total <br />dissolved solids of the well water (about 330 ppm) would still remain <br />well within public health standards. <br />It is possible that with sustained pumping an infusion of river~ <br />water would take place which would reduce the total dissolved solids. <br />However, the staff of the board does not believe that any significant <br />reduction would take place. The only way to determine this matter <br />would be to pump the wells for about two weeks and take daily water <br />samples for chemical analysis. <br />If development of the well field proves the water hardness to be <br />as high as indicated by tests made to date, then the selected plan <br />provides for a surface diversion from the White River about 5 miles <br />further upstream (area C). By mixing well and river water the hardness <br />of the well water could be reduced somewhat and the temperature of the <br />combination could be maintained above the freezing level. The use of <br />river water would require the construction of a treatment plant which <br />would not be required if well water alone were used. <br /> <br />. <br /> <br />-4- <br />