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<br />I <br /> <br />Pump Svstem Enclosure <br /> <br />Each pre-fabricated pump system will be located within a building, installed on a <br />concrete slab. Typical pump buildings can be precast concrete "tilt-up" building, CMU <br />wall buildings, or wood frame buildings. The building will include adequate access for <br />maintenance including a roof hatch above the pumps and filters. Proper ventilation will <br />be required to keep the motors cool as well as to heat the exposed piping during <br />shoulder months when freezing conditions may exist. <br /> <br />Electrical Requirements <br /> <br />Electrical components required at each pump station will include a main service <br />disconnect and meter (as specified by the local electrical utility), transformer, and service <br />panel for the previously mentioned components, The pump station skid will include the <br />control panel for proper operation of the pump system and will require 460 volt, 3-phase <br />power, <br /> <br />Flow and Pressure Requirements <br /> <br />Many factors will affect the proposed system components as the land is developed <br />throughout the service area. Therefore, the following assumptions were made with the <br />intent of providing flexibility in the system at a reasonable cost to eliminate future <br />restrictions. <br /> <br />The ideal velocity range of water within the pipe network was assumed to be <br />approximately 1,5 feet per second (FPS) to 5 FPS. However, 8-inch pipe was selected to <br />be the minimum pipe size throughout the network. <br /> <br />The desirable pressure at each irrigation point-of-connection is between 75 PSI and 100 <br />PSI, which is similar to domestic water pressures. The south end of the pipe network <br />may require the installation of pressure reducing/sustaining valves to prevent excessive <br />pressures in the pipes. <br /> <br />Pipelines <br /> <br />The pipe material used for the feasibility study and cost estimates is C900 and C905 <br />pressurized PVC pipe. <br /> <br />Figure 4 shows the hydraulic model output. Flow demands and delivery pressure are <br />shown at each node and the pipe size and direction of flow are shown on the pipelines. <br />The storage reservoir and pump station locations are also shown in this figure. <br /> <br />Meterina and Point of Connection (POC) <br /> <br />Secondary water supply that is delivered to a point of connection can either be metered <br />or un-metered. Conceptual schematics of the point of connection with and without <br />metering devices are shown in Figures 5 and 6, respectively. It should be noted that the <br />point of connection without metering devices (Figure 6) can be modified to include a <br />provision for future installation of a meter. <br /> <br />Aqua Engineering, Inc. <br />June 7,2004 <br /> <br />Canal Modernization Feasibility Study <br />- 16- <br />