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<br />USBRIMWD SALINITY MANAGEMENT STIJDY <br />FINAL REPORT <br /> <br />Possible salinity management strategies fall into four fundamental categories briefly described <br />as: <br /> <br />w <br />cr~ D Imported Water Source Control <br />::i ~ Colorado River <br /> <br />~ SWP and CALFED Bay-Delta Program <br /> <br />D Metropolitan Distribution System Management <br />~ Blend imported water <br /> <br />~ CRA desalting <br /> <br />~ Integration of Quality and Quantity <br /> <br />D Metropolitan and Other Agency Collaboration <br />~ Expand Desert and Coachella water exchange <br /> <br />~ Demineralization <br /> <br />D Local Efforts to Protect Groundwater and Recycled Supplies <br />~ Groundwater basin management, which considers use of good quality water for <br />groundwater recharge. <br /> <br />~ Wastewater management. <br /> <br />~ Reduction of salt usage, which includes reduction in the use of water softeners and <br />industrial salts where regeneration brines enter wastewater collection systems <br />destined for water reclamation plants (rather than ocean discharge). <br /> <br />~ Brine lines, which are specially dedicated pipelines used to carry highly saline <br />water for ocean disposal. <br /> <br />For analytical purposes, the CRA was considered full for the study period, consistent with the <br />objectives of the California 4.4 Plan. <br /> <br />IMPORTED WATER SOURCE CONTROL <br /> <br />ACCELERATE COLORADO RIVER BASIN SALINITY CONTROL ACTMTIES <br /> <br />The Colorado River Salinity Control Program is predicated on offsetting salinity impacts of <br />upstream development (primarily agriculture) to maintain salinity at or below criteria levels of <br />723 mgIL below Hoover Dam, 747 mgIL below Parker Dam and 879 mgIL at Imperial Dam, <br />with average flow conditions. <br /> <br />BOOKMAN-EDMONSTON <br />ENGINEERING, INC. 3-2 <br />O:\LOCALRESIANDYSISALfNITYVUNE98-217SECT3.DOC 07/20/9810:59 AM <br /> <br />Section 3 <br />Evaluation of Potential Regional <br />Salinity Management Strategies <br /> <br />e <br /> <br /> <br /> <br /> <br /> <br /> <br />e <br /> <br />e <br />