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WSP04208
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Last modified
1/26/2010 12:54:15 PM
Creation date
10/12/2006 12:12:20 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
8276.851
Description
La Verkin Springs Unit - Colorado River Salinity Control Program
State
UT
Basin
Colorado Mainstem
Date
3/23/1983
Title
LaVerkin Springs Desalinization Project
Water Supply Pro - Doc Type
Report/Study
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<br />f <br /> <br />] <br /> <br />1 <br /> <br />1 <br /> <br />1 <br /> <br />J <br /> <br />) <br /> <br />] <br /> <br />1 <br />~ <br />] <br />, <br /> <br /> <br />J <br />J <br /> <br /> <br />I <br />I. <br /> <br />PROJECT COST SUMMARY <br /> <br />Upper Diversion Structure <br />Lower Diversion Structure <br />Bypass Pipeline <br />Access Road and Water Rights <br />Dam Construction <br />clay Blanket <br />LaVerkin Springs Bypass Pipeline <br /> <br />$ 2,390,000 <br />990,000 <br />3,610,000 <br />2,500,000 <br />9,200,000 <br />11,200,000 <br />3,110,000 <br /> <br />$32,890,000 <br />3,110,000 <br /> <br />$36,000,000 <br /> <br />Subtotal <br />Engineering, Legal & Fiscal @ 10% <br /> <br />TOTAL <br /> <br />Based on a surface area of 1,025 acres created by the <br /> <br />construction of the total containment ponds, the cost per acre <br /> <br />of surface area would be approximately $35,100. <br /> <br />The annual <br /> <br />cost per mg/l of salt reduction would be $483,500 based on a 7~ <br /> <br />percent discount rate for a 50 year life. The total reduction <br /> <br />in salts for the Colorado Basin will be 6.5 mg/l. <br /> <br />The preliminary cost estimates for constructing the Purga- <br />tory Flat LaVerkin Springs desalinization alternative are based <br /> <br />on the following assumptions: <br /> <br />1. The earth embankment for the dams, including earth- <br /> <br />fill, riprap, drains and reservoir clearing will cost <br /> <br />$4.00 per cubic yard of dam embankment. <br /> <br />2. The impervious earth blanket will consist of a 6 inch <br /> <br />sand base, 24 inches of clay, and 6 inches of gravel <br /> <br />or earth cover over the clay. This material has been <br /> <br />002581 <br /> <br />P6/L7 <br /> <br />CREAMER AND NOBLE <i'M.CONSULTlNG ENGINEERS <br /> <br />. <br /> <br />~~----""":""k.'__ <br /> <br />..,,.. <br /> <br />- ...;.." <br />
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