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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />Potable Water Back-up <br /> <br />In secondary supply systems, potable water supply is often provided as a back-up to the <br />raw water supply. If the pressurized dual system is desired to run before the surface <br />water runs or after the ditch is "shut off" for the season (often referred to as the "shoulder <br />months"), an alternative water source is required. It is often not economically feasible to <br />provide potable back-up for all customers in the service area, but it may be desirable to <br />provide this option for some landscapes such as community parks, high use zones such <br />as ball fields, or for more valuable landscapes such as trees and shrubs. <br /> <br />A potable back-up can be discharged into the storage reservoirs and the pump station <br />and transmission system would continue to operate with no change to the end user. <br />Agreements with potable water purveyors are needed to allow this type of service. <br /> <br />Aqua Engineering, Inc. <br />June 2004 <br /> <br />Canal Modernization Feasibility Study <br />-9- <br />