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.. C . Design shall be based on an average daily consumption of 100-gallons per <br /> capita per day, a maximum day ( MD) factor of 2 . 25 times average day and a <br /> peak hour factor of 4 . 5 times average day, per Indian River County Ordinance. <br /> D . Distribution systems shall be sized to provide for 100 percent of the combined <br /> required fire flow and maximum day demand rate , while maintaining a 20-psi <br /> _ residual pressure in the distribution system . <br /> E . All water mains shall be designed to provide a minimum pressure of 25-psi at <br /> ground level at all points in the distribution system under all conditions of flow <br /> (except as noted in D above). <br /> F. Dead-end 4-inch water distribution system mains may be used to serve up to 10 <br /> r ERU 's, but shall not exceed 300 linear feet and down stream of last Fire Hydrant <br /> Assembly. <br /> +. G . Fire flow requirements shall be as outlined within the Insurance Service Office <br /> ( ISO) Fire Flow Requirements. <br /> H . The minimum size main in diameter serving fire hydrants shall not be less than 6- <br /> inches in diameter for residential (single family) areas and 8-inches in diameter <br /> for commercial areas and multifamily residential areas. <br /> ` I . Maximum fire hydrant spacing shall not exceed 1000-feet in single-family <br /> residential areas and 600-feet in commercial areas and multiple-family residential <br /> areas. No fire hydrant shall be over 500-feet from a single-family residence, <br /> multifamily residence , or commercial building . <br /> J . All public fire hydrants shall be painted Federal Safety Red . Private fire <br /> r hydrants shall have the body painted red with a white painted bonnet. <br /> K. All fire mains shall be equipped with a detector check valve assembly as shown <br /> .� in IRCDUS Standards Detail W-8. <br /> L . A gate valve must be installed within 20-feet of all fire hydrants on the same <br /> water main as the fire hydrant. <br /> M. It shall be demonstrated that the water distribution system can supply the <br /> required demand rate and fire flow prior to acceptance by IRCDUS, and an on- <br /> site fire flow test shall be conducted by the Indian River County Fire Department <br /> or EMS . <br /> N . Service connections and fittings shall be located outside of pavement, concrete <br /> curb , and/or concrete sidewalk areas unless otherwise approved by the IRCDUS . <br /> O . Water mains and services shall be installed in front easements or in dedicated <br /> Rights-of-Way (not under pavement) accessible to maintenance equipment. <br /> 11 .04 EARTHWORK AND BACKFILL <br /> I1 - 4 <br />