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1 � <br /> t <br /> and the estimated quantities of sewage generated. The 250 gallons <br /> per acre used for portions of the bare land was an average of per <br /> acre volume of the existing land uses in the Ad Art Road area. We <br /> believe that the Wise property and half of the II.P. B. properties <br /> will be developed with uses similar to those existing on Ad Art <br /> Road. The other Mali of the II.P.B. property will be developed <br /> with highway Service, Commercial Service and some Multiple F"i.iily <br /> Residential uses . These are eaumerated in Table II. T:je tcj,.il <br /> estimated sewage from planned and anticipated uses "wuu;:ts to <br /> 105,000 gallons per day. This c<,mbined with the sewaoa from ex- <br /> isting uses totals 165,000 gallons per day or 83 per cent of the <br /> plants 200,000 gallons per day capacity. The reserved 17 per <br /> cent will allow some flexibility in type of uses which m;,y lUcate <br /> in the service area. Estimating sewage volumes from unknown � <br /> future uses is only an educated guess at best. <br /> The treatment plant itself had been operating in Raywi,5 <br /> Village from 1966 until 1975. All those involved in its oper- <br /> ation and maintenance agree that the plant does an excellent <br /> job of sewage treatment. Enclosed as Exhibit A is a brief out- * <br /> line of the specifications of the plant. The trouble incurred <br /> at the Raymus Village plant was in the disposal of the effluent. <br /> Their system of leach fields were impossible to do anything with <br /> once troubles occurred in their percolation ability. These ` r <br /> fields were replaced by percolation ponds which were operating <br /> satisfactorily. We plan to use two evaporation - percolation_ ' . <br /> ponds. Each pond capable of percolating the 200.000 gallons per <br /> W. This giving 200 per cent of the required disposal area. <br /> The ponds would alternately be dried out and thier bottoms disced <br /> up to renew their percolation ability. Percolation tests run using% <br /> clean water result in a percolation rate of 60 minutes per inch or <br /> 24 inches per day. Experience has shown that sedimentation on the <br /> bottom of the percolation ponds reduces the rate considerably . A <br /> design rate of 5 inches per day is chosen for the pond design. <br /> Bottom area of each pond 200,000 64, 200 SQ .FT. <br /> 7.48 x 5/12 <br /> The levees for the ponds will be constructed to an elevation <br /> above the 100 year flood elevation. of 33 .5 to avoid contamination <br /> to the area in the event such a flood should occur. <br />