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<br />J <br /> <br />,.". <br />><4 <br /> <br />LAVERKIN SPRING <br />DESALTING PROJECT <br /> <br />~ <br />[ <br />[ <br /> <br />INTRODUCTION <br /> <br />II <br /> <br />The LaVerkin Spring Desalinization Project as proposed by <br />the Bureau of Reclamation consisted of constructing two con- <br />crete diversion dams on the Virgin River. The upper diversion <br />dam would divert the flows of the Virgin River through a large <br />bypass pipeline around the LaVerkin Springs area and back into <br />the river below the lower diversion dam. The lower diversion <br /> <br />"... <br />,. <br />~ <br />, <br /> <br />rr <br />'[ <br />n <br /> <br />dam would be used to collect and divert the flows of the LaVer- <br />kin Springs to a desalting plant about a half mile below the <br />springs. The processed water from the springs, estimated to be <br />8.7 cfs, would be diverted back into the river while the brine, <br />estimated at 3.2 cfs, would be pumped to Purgatory Flat, a <br />distance of approximately 9 miles, to 612 acres of settling and <br />evaporation ponds. The total estimated cost was $85,000,000 <br />with an annual operation and maintenance (O&M) cost of <br />$2,800,000. According to the Bureau of Reclamation economic <br />analysis, the annual cost for each mgjl of salt reduction at <br />Imperial Dam was $1,060,000. Since other salinity control pro- <br />jects in the Colorado River drainage range from $200,000 to <br />$450,000 per year for each mgjl of salt reduction, the proposed <br /> <br /> <br />plan was not considered cost effective. <br /> <br />II <br />I <br /> <br />D <br />I' <br /> <br />CCZ575 <br /> <br />P6jL1 <br /> <br />CREAMER AND NOBLE ~N .CONSUL TING ENGINEERS <br />