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Show CALIFORNIA DEFENDANTS Exhibit No. 6120 Identification: Aug. 18,1958 Admitted: Aug. 18, 1958 Tr. 21,039 Tr. 21,064 IMPERIAL IRRIGATION DISTRICT SUMMARY OF GUNITE LINING OF CANALS UNDER 20 FEET WIDE 1 Approx. Length Miles 2 Lining Required 1000 Sq. Ft. 3 Cost to Line 4 Loss 5 Recoverable by Lining Canals Included in Reported "Loss from Laterals" Main Canals Lateral Canals 47.8 1,538.3 Thousands of A.F./Yr. Total Canals Under 20/ Wide- Gunite Lined 1,586.11 1,382.23 152,5293 $72,000,0003 4232 320.84 2123 1From District records. Avg. for years 1951-1955, incl. 3From District's investigations and studies. 2Avg. per annum, 1951-1955, incl., as shown in Col. 12 of PI. Ex. No. 375. 4Present net loss from canals to be lined. First Cost per Acre-Foot Recovered First cost per acre-foot = $72,000,000 ^ 212,000 $339.60 Annual Cost per Acre-Foot Recovered With interest rate of 4% and 25-year term of capital recovery, factor is 0.064012. Annual capital costs = $339.60x0.064012 = $21.74 Less net saving in annual maint. costs Cost per acre-foot 0.655 $21.09 Annual Fixed Charges With interest rate of 4% and 25-year term of capital recovery, factor is 0.064012. Annual fixed charges = $72,000,000 x 0.064012 = $4,608,864 per yr. for 25 years. Capital Cost to New Land Using Recovered Water If the 212,000 acre-feet recovered by lining were used by new land, would serve 50,000 acres. Cost of recovered $72,000,000 _ -water per acre = 50,000 $L450 Est. cost of a distribution system, per acre 250 Total capital cost per acre of new land $1,700 570% of maintenance cost for canals lined. |
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Original book: [State of Arizona, complainant v. State of California, Palo Verde Irrigation District, Coachella Valley County Water District, Metropolitan Water District of Southern California, City of Los Angeles, California, City of San Diego, California, and County of San Diego, California, defendants, United States of America, State of Nevada, State of New Mexico, State of Utah, interveners] : |