Laserfiche WebLink
<br />USBR/MWD SALINITY MANAGEMENT STUDY <br />FINAL REPORT <br /> <br />SECTION 3 <br />EVALUATION OF POTENTIAL REGIONAL <br />SALINITY MANAGEMENT STRATEGIES <br /> <br />. <br /> <br />w <br />(j) <br />o <br />0) <br /> <br />BACKGROUND <br /> <br />Within the coastal plain of Southern California, approximately one half of the salt input i <br />from imported water and the remainder from local sources. Therefore, a comprehensive <br />approach to salinity management clearly should focus on both imported and local sources of< <br />salinity. Figures 2-17 and 2-18 indicate sizeable benefits from reducing both sources. <br /> <br /> <br />An array of potential salinity management actions was formulated and screened throug <br />discussions by Metropolitan staff, member agencies, other concerned agencies and pertinent <br />organizations. The Metropolitan Board workshop, held on July 25,1997, also helped identifY <br />key parameters that should be used to assess the potential strategies. <br /> <br /> <br />Three distinct time periods, related to Metropolitans Capital Improvement Program schedule, <br />were identified to guide staging of potential actions: <br /> <br /> <br />. <br /> <br />1998-1999 This near term period is consistent with the current level offacility development. <br />2000-2004 During this period, the initial filling of the Eastside Reservoir will occur, and Stage <br /> II Regulations under the Safe Drinkinv Water Act will be promulgated <br />2005-2015 During this period Metropolitan will likely upgrade the disinfection process at its <br /> blended water filtration plants, the Inland Feeder will become operational, clarity <br /> will be reached on the amounts of water to be exchanged or wheeled through the <br /> Colorado River Aoueduct, and benefits of a CALFED program mav be realized. <br /> <br /> <br />Based on the uncertainty of key conditions affecting salinity beyond 2004, the analyses <br />presented in this report focus on the 1998 to 2004 period. Subsequent studies will be needed <br />in the future to address the period 2005 and beyond once stability is reached concerning the <br />controlling conditions. <br /> <br />Given the long-term recognition of a need for salinity management, Metropolitan and other <br />agencies need to cooperate in a cohesive regional strategy. It is clear that Metropolitan alone <br />cannot solve the regions salinity problems. <br /> <br />. <br /> <br />BOOKMAN-EDMONSTON <br />ENGINEERING, INC. <br /> <br />3-1 <br /> <br />O:\LOCALRES\ANDYS\SALINITY\JUNE98-2\7SECT3.DOC 07/20/98 10:59 AM <br />