Laserfiche WebLink
River Islands Development at Lathrop January 2021 <br /> Final River Islands Potable Water Technical Report—Rev 3 #6520 <br /> 5.2 Steady State Analysis Results— Maximum Day Demands <br /> Figure 5-5, Figure 5-6, and Figure 5-7 shows the steady state analysis results of each pipe velocities, <br /> headloss gradients, and the junction and hydrant pressures under MDD. <br /> Table 5-2 shows the specific minimum and maximum operating values for the model and their <br /> corresponding location under MDD. <br /> Table 5-2: Steady State Analysis Results—Maximum Day Demands <br /> City <br /> Model Result Category Unit Result Requirements Location <br /> Minimum Pipe Velocity ft/s 0.01 N/A Several locations <br /> Maximum Pipe Velocity ft/s 1.95 10 P-1223, 24-inch main along <br /> Golden Valley Parkway <br /> Several locations, all lines <br /> Minimum Headloss Gradient ft/1000ft 0.01 N/A except for the larger <br /> transmission type lines <br /> 1.0- Several segments of the 24-inch <br /> Maximum Headloss Gradient ft/1000ft 1'.4 N/A main along Golden Valley <br /> Parkway <br /> 4 junctions in east of Phase 1A <br /> Minimum System Pressure psi 60 40 and 1 B along the San Joaquin <br /> River. <br /> Several locations, primarily in <br /> Maximum System Pressure psi 71-70 80 the larger transmission type <br /> lines. <br /> Flow Supplied' gpm Varies N/A <br /> Flow Demand2 gpm 5,186 N/A Maximum Day Demand <br /> Flow Stored3 gpm Varies N/A <br /> NOTES: <br /> 'See Section 5.1 <br /> ZFlow Demand is equal to the sum of the total potable water demands met. <br /> 3See Section 5.1 <br /> 5.3 Steady State Analysis Results— Maximum Day Demands Plus Fire Flows <br /> Figure 5-8 and Table 5-3 show the available fire flows at the specified junctions or hydrants after MDD <br /> have been satisfied and meeting specific operational/performance criteria listed in Section 4.1.2. Under <br /> MDD, the distribution system can provide each land use's required fire flows. <br /> Table 5-3: Steady State Analysis Results—Maximum Day Demands Plus Fire Flows <br /> Model Result Category Unit Result Location <br /> 1,533- All located in low and medium density <br /> Minimum Fire Flow Available gpm <2,000 residential areas. <br /> All locations (with exception to the <br /> Maximum Fire Flow Available gpm > 3,000 location above) specifically in the <br /> commercial areas. <br /> 31 <br />