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<br />~ <br /> <br />and settling ponds are designed to take water out of Brush Creek <br /> <br />and settle the water prior to being transported to the water treat- <br /> <br />ment plant,- which is about five and one-half miles downstream. The <br /> <br />treatment plant is 577 feet lower than the intake structure. <br /> <br />The concrete settling pond has a capacity of 680,600 gallons. <br /> <br />This means that the water entering the settling pond has sixteen <br /> <br />hours, at present full plant capacity, in which to settle out the <br /> <br />silt entering the raw water transmission line on the way to the <br /> <br />plant. However, as experienced in many of the ponds of this type, <br /> <br />the water is short-circuited and does not have the full sixteen <br /> <br />hour retention time. During periods of high turbidity the smaller <br /> <br />particles do not have time to settle out and must be removed by the <br /> <br />treatment plant. This extra load on the treatment plant cuts down <br /> <br />on the actual treated water available for domestic use. It is also <br /> <br />apparent that the concrete settling pond has been cleaned only once <br /> <br />or twice since being put into operation. <br /> <br />. <br /> <br />~~ <br /> <br />. <br /> <br />- 12 - <br /> <br />. <br />