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<br />AZ Return flow share of Gila Main Canal loss EI 1864 * <br />AZ Subtotal return flow EI 12210 12210 check from above <br />AZ Cons~tive Use (see note above) -1598 -1598 check from above <br />AZ (A) Total for the North Gila Valley, The Yuna Irrigation and the Yuna Mesa Irrigation and Drainage Districts, and IUnit BI ~ <br />AZ (B) Estimated at 85 percent of the Yuma Mesa OutLet Drain with baLance credited to IUnit BI. <br />AZ (C) Estimated at 85 percent of Protective and ReguLatory Pumping Unit with balance credited to IUnit BI~ <br />AZ (D) Estimated at 38 percent of the North GiLa ValLey Diversion at Imperial Dam pLus 14 percent of Yuma Irrigation District diversion at <br />AZ Imperial Dam. (Based on anaLysis of the USGS Report 83-4220 entitled 'A Method for Estimating Ground-Water Return FLow to the <br />AZ Lower Colorado River in the Yuma Areal) <br />AZ (E) Diversion*miLage weighted share of Gila Main Canal Loss Less canaL surface evaporation (1397 af/yr) and prheotophytes (2154 af/yr). <br />AZ (F) AdditionaL unmeasured amounts of return flows from the Yuma Mesa Irrigation and Drainage District, 'Unit B', the Cocopah Indian <br />AZ Reservation, and the Yuma County Water Users Association (YCWUA) are utilized to meet consumptive uses in the United States and in <br />AZ partial satisfaction of the Mexican Treaty obLigation. Some of thes underground flows are recovered by pumping from weLLs on the <br />AZ Cocopah Indian Reservation and in the YCWUA area, and by some of the surface drains in the YCWUA area. Efforts wiLL be made to at Least <br />AZ quantify these return flows within broad Limits by respective water user entities in future years. <br />AZ 8/ Diversion adjusted for deLivery to Mohave VaLley I. D. D. (Chesney). <br /> <br />o <br />C) <br />..... <br />-.l <br />(J;J <br />. , <br /> <br />. <br /> <br />. <br />