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<br />The irrigator elects to pump at the rate of 2.00 acre-ft/day. <br /> <br />(5) If he plans to pump until the end of the season, how soon can he <br /> <br />start pumping? (6) If he plans to start pumping at the beginning of <br /> <br />the season, how long can he pump? (7) If he plans to start pumping <br /> <br />50 days after the beginning of the season, how long can he pump? <br /> <br />Part (5) <br /> <br />Qt = 150 acre-ft <br />~ <br /> <br />t = 150 acre-ft/2 acre-ft/day = 75 days <br />tT/a2S = 75 days/209 days = 0.36. <br /> <br />--- - <br /> <br />From Curve B: <br /> <br />~/~ = 0.10 <br /> <br />v = 15.0 acre-ft <br />- <br /> <br />therefore the restriction on volume pumped applies. <br /> <br />Part (6) <br /> <br />Assume that the restriction on stream depletion applies, <br /> <br />'!2/ Qa2! = <br />2 acre-ft/day <br /> <br />25 acre-ft <br /> <br />= 0.060 <br /> <br />(209 days) <br /> <br />(t + ti.\ T/is = <br />...p -l) - - - <br />- <br /> <br />150 days <br />209 days <br /> <br />= 0.72. <br /> <br />~o <br />~ <br /> <br />28 <br />