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<br />.0 <br />(-;) <br />..... <br />o..j <br />Q:l <br />N <br /> <br />impact on California of increased Colorado nivcr <br /> <br />Unl eS!1 acdon in tnkcrl to cortttol salinity, the total dcoodmic <br /> <br />salinity between now <br /> <br />and the year 2000 may exceed $40 million per year.. High salinity will <br />also cause significant damages to users in Arizona, Nevada, ahd the <br />Republic of Heldco. <br />rossiblc Hays to Reduce Salirtity <br />In prior 30111yoel1 of the problem of: Colorado River iil'llinlty the <br />nenerDl thruat hua been thnt augmeotntion of' thl:' rlvcr'fl wntet supply <br />by low salinity water supplies would reduce the river's salinity. <br />Because of recent developments, such as the congressionally direoted <br />moratorium ort studying importations of water from the Columbia River <br />Basin into the Coloudo River Bus:ln, opposition to the environmental <br />aspect!1 of lar~l:l scale dlveriii(1I1fl, the huge demnnda for capil:al fbr <br />all public programs, and the slow progress being made in reducing <br />costs of desalting ~ater, it now appears that augmentation of the <br />Colorado River will not be possible until some time after the tuto of <br />the century. As Colorado River Board studies have shown, ho~ever, <br />major salinity problems ort the Colorado River will ~ri8e long before <br />the y(!ar 7.000. Other Holuti.otlB, then, m\lnt he comlidered to meet the <br />river's snlinity problems. <br />Other than transbasin diversions and desalting of oCean water, <br />:~; 1it~*trt~'t"'t~e~"Ii"aUable at this time to ameliorate damaging <br /> <br />-<-.. . <br />salinity conditronfl4nthe..lo\1er river include modification of pre- <br />cipitation to incr<'<.llH: river l:tln6ff, t1t'tm1tinc of geothermal water <br />in Imperial Valley, desaltin~ of Colorado River flows, and specific <br />1l1.11 intty contn,l p1:"0jcctS. <br /> <br />-5- <br /> <br />. , <br /> <br />~, ;,'"' ; (.,." <br />