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<br />l\GS'i <br /> <br />Total Costs <br /> <br />Estimated total construction costs and operation and maintenance costs <br />for recharge facilities are presented in table 6. <br /> <br />Table 6.--Ground-water recharge systems, <br /> <br /> Combination <br />New fac i 1 iti es Test areas alterna ti ve <br />Diversion dams 4 9 <br />Diversi on capaci ty (ft3/s) 490 1,470 <br />Canal miles 117 250 <br />Recharge pond acres 395 1,158 <br />Average annual diversion <br />by new facil ities <br />(acre-feet) 29,400 59,300 <br />Total construction cost $40,370,000 $84,000,000 <br />Annua 1 OI~&R $ 185,000 $ 530,000 <br /> <br />Onfarm Costs <br /> <br />It was assumed that all "new" water yield from the recharge alternative <br />would be pumped from the aquifer for irrigation by "new" wells and <br />pumps, whi ch woul d be ins ta 11 ed by farm owners or opera tors. <br /> <br />The wells and pumps were sized to serve 80 acres, each pumping 1,000 <br />ga 1 /mi n from a depth of 50 feet. Costs were assembl ed from reta il <br />price information provided by equipment distributors and well drillers. <br /> <br />51 <br />