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This project cost does not include the cost of any facilities needed in Southern Nevada to treat <br />the water diverted there and to treat the return flow to the Colorado River. <br />Other recent studies for seawater desalting plants near Tijuana and in San Diego, indicate a <br />product water cost in the range of U.S. Dollars 900 to 1,500 per ac -ft. This cost is F.O.B. the <br />desalting plant limits and does not include the cost of water transmission. Including <br />transmission costs to Mexicali or San Luis Rio Colorado might add another 100 U.S. Dollars <br />per ac -ft; so that the cost of water delivered to these cities might be in the range of 1,000 to <br />1,600 U.S. Dollars per ac -ft. <br />For the case of brackish water RO, finished water cost might range from 500 to 700 Dollars per <br />ac -ft, F.O.B. the desalting plant limits; or 600 to 900 Dollars delivered to Mexicali. <br />Assuming a 60 percent consumptive use and a 40 percent return flow described earlier for <br />water withdrawn from Lake Mead, the cost of each ac -ft of raw water withdrawn from <br />Luke Mead in this water exchange concept would be in the range of U.S. Dollars 600 to 1,000 <br />per ac -ft for desalinated seawater and 400 to 600 Dollars per ac -ft for desalinated brackish <br />water. <br />Needless to say that the costs mentioned here are very rough estimates, and it would be an <br />Important objective of a feasibility study to develop detailed cost estimates for the proposed <br />water exchange concept. <br />r <br />[l <br />1 13 Carollo Black & Veatch <br />