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<br />. <br /> <br />. <br /> <br />. <br /> <br />modifications in the measured diversions less measured returns concept <br /> <br />are incorporated in the proJected depletion atudies. Summari~ing briefly <br />these are: <br /> <br />1. An assumed future conaumptive use rate on most Indian Reservations <br /> <br />and the Palo Verde Irrigation District of 4.3 acre-feet per acre <br />in lieu of an indicated average rate over the past few years <br />of about 4.67 acre-feet per acre (5.23 for the Colorado River <br />Indian Reservation and 4.44 for the Palo Verde Irrigation District). <br />2. An assumed consumptive use of 70 percent of diveraion for certain <br />miscellaneous irrigation users pumping from the underground <br />and/or direct from the river, where no surface returns are <br />now evident. This in effect assigns an arbitrary consumptive <br />use rate in the future for these users of 4.2 acre-feet per <br /> <br />acre compared to the present reported use rate of about <br /> <br />6 acre-feet per acre. <br /> <br />3. An estimated net gain of 60,000 acre-feet per year in <br /> <br /> <br />the reach of river between Imperial Dam and the Northerly Boundary <br /> <br /> <br />was allocated to California and Ari~ona as a return flow credit <br /> <br /> <br />from irrigation operations. <br /> <br />10 <br />