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<br />USBR/MWD SALINITY MANAGEMENT STIJDY <br />FINAL REPORT <br /> <br />. <br /> <br />w <br />en <br />t<, <br />C) <br /> <br />1. Inability to cycle storage without conflicting with recreational and fishery interests' <br />desire for a stable water surface elevation, and <br /> <br />2. Inability to redirect nearby Santa Ana Valley Pipeline flows through the reservoir <br />without losing power generation revenue from bypassing the Perris Power Plant. <br /> <br /> <br />To deal with these problems, a Metropolitan task force is working with concerned <br />recreational and fishery interests on reservoir cycling operations at Perris. Metropolitan has <br />also implemented some limited flow-through operations (power plant bypass) to flush salts <br />from the reservoir. Since the Perris Power Plant provides about $1 million in annual revenue, 00 <br />additional assessment of the costs and benefits of bypassing the power plant are being <br />incorporated into the discussions. <br /> <br /> <br />Figure 3-10 <br /> <br /> <br />Salinity at Lake Perris <br /> <br />500 <br /> <br /> <br />. 400 <br />::r <br />e;, <br />S. <br /><II <br />C 300 <br />t- <br /> <br /> <br /> <br /> <br />200 - <br /> <Xl '" 0 a; '" '" ... on CD r-- <Xl <br /> <Xl <Xl '" '" '" '" '" '" '" '" <br /> '" '" '" '" '" '" '" '" '" '" '" <br /> ~ ~ ~ ~ ~ ~ ~ ~ ~ <br />-~,~.- <br /> <br />COLORADO RIVER WATER AND AGRICULTURAL DRAINAGE DESALTING <br /> <br />Three options to reduce CRA salinity levels through desalination were evaluated at the <br /> <br />conceptual level. Two of the options desalt aqueduct water. The other option desalts <br />agricultural drainage water from the Imperial Valley or Coachella Valley and places the <br />product water into the CRA to dilute salinity concentrations. <br /> <br />. <br /> <br />BOOKMAN-EDMONSTON <br />ENGINEERING, INC. 3-15 <br />0:\LOCALRESIANDYSISAlfNITY\JUNE9B-2\7SECT3.DOC 0712019B 10:59 AM <br /> <br />Section 3 <br />Evaluation of Potential Regional <br />Salinity Management Strategies <br /> <br />M <br /> <br />'0 . <br /> <br />;li.~>~ <br />