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<br />I <br />I <br />I <br />I <br />I <br /> <br />network. When a new subdivision is developed the developer would normally install <br />b' <br />the 6" service lines to the area. If these line.s are in a location that at <br />[I, """'" t" <br />a later date should actually b~or 1arg~r the City or water district should <br /> <br />fund the cost of oversizing these lines. <br /> <br />The cost estimates for these 8" lilles are shown in Section 6; no time frame has <br />been assigned to this construction. <br /> <br />I <br /> <br />There are a number of 4" lines within the City that presently serve fire <br /> <br /> <br />hydrants. The NBFU considers 6" the minimum size of pipe satisfactory for <br /> <br /> <br />hydrant supply. Lines 4" or smaller serving fire hydrants should be replaced. <br /> <br />I <br />II <br /> <br />Cost estimates for this replacement have not been prepared, but some sort of a <br /> <br /> <br />systematic program should be instituted to accomp~ish this replacement. <br /> <br />Pressure Zones to be Served. <br /> <br />II <br />II <br />II <br />II <br />II <br />II <br />rl <br />II <br />II <br />[J <br />{I <br /> <br />As indicated previously, there are areas of planned development on the <br /> <br /> <br />northwest and southwest edges of the City that will be at elevations that <br /> <br /> <br />will require pump stations and separate storage to serve them. <br /> <br />Because of the major differences in elevation of the areas to be served by <br /> <br /> <br />the City water system, pressure zones must be maintained so that line pressures <br /> <br /> <br />serving customers are neither too bigh or too low. It is recommended that <br /> <br /> <br />water pressure in the distribution system be maintained between 40 psi and <br /> <br /> <br />100 psi within the individual pressure zones. <br /> <br />Exhibit No. 10 shows the proposed pressure zones to be maintained for the Canon <br /> <br /> <br />City water system. There is one zone between the area served by the Canon <br /> <br /> <br />Chemical tank and the area served by the storage at the treatment plant that <br /> <br /> <br />will require pressure reducing valves if served by the Canon Chemical tanks.. <br /> <br /> <br />This area is shown on Exhibit No. 10. <br /> <br />In the future when expansions to the distribution system are made and connections <br /> <br /> <br />are made between adjacent pressure zones, care must be taken in maintaining <br /> <br /> <br />these pressure zones by using pressure reducing valves on. these connections. <br /> <br />5-5 <br />