|
<br />tons
<br />mg/L
<br />$1,0001
<br />mg/L 1,153
<br />II Winter water delivery would be eliminated in lined canals.
<br />Descriptions of the plans are as follows:
<br />Plan A-I involves the concrete lining of all Uncompahgre Project canals and laterals.
<br />plan A-2 involves the concrete lining of all canals and laterals on the east side of the valley.
<br />Plan B recommends concrete lining adobe area canals and laterals on the east side of the valley and includes installation of about 19 miles of pipe.
<br />Plan C involves concrete lining deteriorated canals and laterals in the study area.
<br />Plan D proposes earth lining and piping of all Uncompahgre Project canal a and laterals.
<br />Plan E recommends earth lining Uncompahgre canals and laterals on the east side of the valley and includes 19 miles of pipe.
<br />Plan F (Future without)--No salinity funds would be expended and no construction would occur. This alternative assumes that due to operation. maintenance.
<br />and replacements and rehabilitation and betterment programs and irrigation management, some salinity reduction would occur.
<br />!! Winter water replacement costs are included in construction costs for all the candidate plans.
<br />31 Although this alternative is more cost effective than plan A-2. an attempt was made to maximize salt removal in a manner considered to be cost
<br />effective when compared to other opportunities in accordance with the objectives of P.L. 93-320.
<br />
<br />r
<br />
<br />Features
<br />Project lands affected
<br />Length of lining proposed
<br />Length of piping proposed
<br />Number of structures affected
<br />Wildlife measures
<br />Wetland habitat acquired
<br />Deer escspe ramps
<br />
<br /> Candidate plansll
<br /> (Jsnuary 1981 prices)
<br />Unit A-I A-2 B C D
<br />acres 86,000 32,400 32,400 10 .OOO..!. 86,000
<br />miles 514 254 235 98 514
<br />miles 32 0 19 0 32
<br /> 6,880 3,040 3,040 7.600 7.600
<br />acres 4.614 2.121 2.121 829 4.614
<br /> 15 15 15
<br />$1,000 289.300 133,050 134,100 91.050 302,650
<br />$1,000 13 ,000 4,750 4.750 2,800 13 .000
<br />$1.000 302,300 137,800 138,850 93,850 315,650
<br />$1,000 31915 1,785 1.800 1.215 4.090
<br />$1.000 -2,460 -2,460 -2.460 -2.460 -2.460
<br />$1,000 1,455 -675 -660 -1,245 1,630
<br />$1,000 303,755 137,127 138.190 92.605 317,280
<br />$1.000 231059 10,410 10,490 7 ,030 24,086
<br />$1,000 23,059 10,410 10 ,490 7.030 24.086
<br />
<br />Costs
<br />Construction cost2!
<br />Mitigation cost -
<br />Subtotal
<br />Interest during construction
<br />Cost of investigations prior to
<br />authorization
<br />Subtotal
<br />
<br />....
<br />00
<br />
<br />Total investment
<br />Annual equivalent cost (7 3/8 percent
<br />over 50 years)
<br />Total annual cost
<br />Cost-effectiveness summary
<br />Estimated salt reduction annually
<br />Reduction effect at Imperial Dam
<br />Cost effectiveness
<br />
<br />1711230
<br />18.8
<br />
<br />1881120
<br />20
<br />
<br />140,470
<br />15.2
<br />
<br />140,470
<br />15.2
<br />
<br />115.970
<br />12.4
<br />
<br />685
<br />
<br />1/567
<br />
<br />1.281
<br />
<br />690
<br />
<br />o
<br />10
<br />(,~-")
<br />CO
<br />...
<br />~
<br />
<br />E
<br />
<br />F
<br />(future
<br />without)
<br />
<br />32.400
<br />235
<br />19
<br />3,040
<br />
<br />2.121
<br />
<br />135,250
<br />4,750
<br />140,000
<br />1,815
<br />
<br />-2,460
<br />-645
<br />139,355
<br />
<br />10,579
<br />10.579
<br />
<br />132,660
<br />14.4
<br />
<br />15,000
<br />1.6
<br />
<br />735
<br />
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