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<br />000295 <br /> <br />Although not a salinity control measure, under the authority of the Salt-River Pima- <br />Maricopa Indian Water Rights Settlement Act of 1988 (public Law 100-512),2,225 acres <br />~--",..~.-= <br />of high water-use farmland has been taken out of production throu urchase and <br />exc ange. nder this program Wellton- ohawk Irrigation and Drainage Distnct s <br />~(WMIDD) consumptive use (diversion less returns) was reduced from 300,000 acre-feet <br />per year to 278,000 acre-feet per year. ~~--------- <br />--- <br /> <br />~ <br /> <br />Figure 1. <br /> <br />Yuma Desalting Plant <br /> <br /> <br />Colorado River Water Supplies And Needs <br /> <br />In the early 1970's, when Minute No. 242 and the Act evolved, storage in the Colorado <br />River mainstem reservoirs were recovering from an extended drought and the initial filling <br />of Lake Powell was ongoing. This situation caused important emphasis on the need to <br />salvage Wellton-Mohawk Division drainage water for delivery to Mexico as a part of its <br />Treaty entitlement. At the same time, deliveries to Boulder Canyon Project Contractors <br />were about 6.5 million acre-feet per year and Upper Basin depletions were about three <br />million acre-feet per year. <br /> <br />13 <br />