Laserfiche WebLink
<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 />3637 <br />Page Two/~uqust 6, 1982 <br />Memo <br /> <br />augmentation, the Board predicted salinity levels assuming the <br />fOllowing two conditions relative to future use of the additional <br />supply: <br /> <br />(1) the water would be used entirely in the Upper Basin, <br />and <br /> <br />(2) the water would be divided equally between the two <br />basins. <br /> <br />The Upper Basin's allocation under both conditions is <br />assumed to be used in the same proportions specified in the <br />Forum's 1981 Triennial Review. The water allocated to the Lower <br />Basin under condition (2) is expected to be exported out-oE-basin <br />to the Central Arizona project and the Metropolitian Water <br />District of Southern California. <br /> <br />Under condition (1), salt pickup associated with increased <br />runoff and additional water use (agricultural, municipal, and <br />industrial) would increase the salt load by 840,000 tons per year <br />or 84 mg/l at Imperial Dam. Under condition (2), the increase in <br />salt concentration resulting from increased runoff and additional <br />water use in the Upper Basin would be nearly offset by the <br />650,000 acre-feet inflow to Lake Powell. This water would likely <br />be exported out-of-basin and would therefore not add salt load to <br />the system. <br /> <br />The Bureau of Reclamation has predicted a significant <br />. <br />decrease in Colorado River salinity levels as a result of a <br /> <br />-3- <br />