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I. 1 1 1 1 1 I I I I I I I I I I I 1 1- October 31, 1994 Mr. Steve Rippy, Mayor Page 2 finished turbidities to 0.5 ppm. Skip reports that, during spring runoff when turbidities are typically elevated, the plant capacity is limited to about 300 gpm due to treatment requirements and the need for backwash. During low turbidity times, the bulk of the year, Skip reports he is able to operate the plant somewhere in the 600 to 650 gpm range. Better control in the presedimentation basin may help treatment performance during high turbidities. Other than that, it is difficult to operate packaged treatment plants in other than their normal mode, and then only with very intensive labor requirements with typically unpredictable results. Therefore, no improvements are proposed for the current facility and a maximum capacity of 600 gpm during typical low turbidity periods is assumed. The raw water pipeline has a variety of materials and sizes. It is currently restricted by a significant section of 8"diameter pipeline which effectively limits its capacity to about 480 gpm, or slightly less than current capacity of the water treatment facility. The present pipeline is a thin wall PVC pipeline with shallow buries through the adjacent subdivision. It generally is not going to perform adequately for any extended period into the future. The presedimentation basin performs very poorly because of a need for cleaning of the basin as well as-the need for a controlled outlet structure. The pond's size and shape is generally acceptable for current and future needs of the Town, noting that cleaning will be required at regular 3-5 year intervals. Water Use Proiections Population. projections and water use projections were originally documented in a report entitled, "Revision to the Town of New Castle's Water Maste,.Plan", May, 198'1, by ARIX. Subsequent to that, the zoning and preliminary plat phases of Castle Valley Ranch have been completed and, through Skip's efforts, verifications of per capita use rates have been made at the plant itself. Based on information available to date, the following population projections and water use requirements have been projected: PEOPLE UNITS 2072 533 2600 Castle Valley Ranch Balance of Town Total 6216 1598 7800 The following per capita use rates have been projected: SCHMUESER GORDON MEYER, INC.