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WSP09734
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Last modified
1/26/2010 2:55:31 PM
Creation date
10/12/2006 3:53:50 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
8271.200
Description
Colorado River Basin Salinity Control Program - Development and History - UCRB 13a Assessment
Basin
Colorado Mainstem
Water Division
5
Date
9/1/1979
Title
Impacts on the Lower Colorado River Region Resulting from Alternative Levels of Emerging Energy Development in the Upper Colorado River Region
Water Supply Pro - Doc Type
Report/Study
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<br />w <br />~ <br />00 <br />a <br /> <br />proportional to total salinity levels as determined in the report <br />"Salinity Management Options for the Colorado River," Jay C. <br />Anderson, Alan P. Kleinman, et al., Utah Water Research Laboratory, <br /> <br />June 1978, which related all impacts to salinity levels at Imperial <br /> <br />Dam. <br /> <br />The assumption was made in this study (CRSS simulation of EET) that <br /> <br />three of the four authorized salinity control projects would be <br />built before the year 2000. The first stage of Las Vegas Wash was <br />assumed to go into operation in 1980 removing 41,000 tons of salt <br />per year and the second stage, the desalting plant, going into <br />operation in 1990 removing 83,000 tons per year. Grand Valley <br />was assumed to be phased in during the period 1982 through 1990 <br />initially removing 34,000 tons of salt per year in 1982 and ulti- <br />mately removing 410,000 tons per year by 1990. Paradox was assumed <br />to be completed by 1985 removing 180,000 tons of salt per year. <br /> <br />Crystal Geyser Project was not assumed to be on-line. <br /> <br />The quality of Colorado River water arriving at Imperial Dam <br />has improved steadily since 1970 and improvement is expected to <br /> <br />continue for the next several years. Possible reasons for this are: <br /> <br />. <br /> <br />(1) supply is presently exceeding demand, especially in the Upper <br />Region; (2) diminishing return flows and salt load between Parker <br />and Imperial Dams; and (3) the large volume of water in storage <br />reservoirs which dampened salinity variations. The delayed comple- <br /> <br />tion on some projects authorized or under construction, that are <br /> <br />19 <br />
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