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<br />OPBRATION, MAINTBNANCE, AND REPLACEMENT <br /> <br />Maintaining cleared and thinned areas.............$ <br />Maintaining drains and arroyo channels............ <br /> <br />TOTAL ANNUAL OM&R CbSTS.~...._.................._.$ <br />WATER SALVAGB <br /> <br />Area of infestation (acres)....................... <br />Areas cleared or thinned (equivalent acres <br />cleared)----.---------------------------------~- <br /> <br />Average annual water salvage per acre cleared <br />(acre-feet)------------------------------------- <br /> <br />Total average annual water salvage (acre. feet).... <br /> <br />BBNBFIT.COST COMPARISON <br /> <br />Annual economic cost (lOO.year analysis).......... <br /> <br />Annual benefits: <br />Water salvage 1/------------------------------- <br />Fish and wildlife---------------------------._. <br /> <br />TOTAL BENEFITS-----~------------------------------$ <br /> <br />Benefit-cost ratio-------------------------------- <br /> <br />115,000 <br />16.000 <br /> <br />131.000 <br /> <br />54,900 <br />19.000 <br /> <br />1, 74 <br />33.000 <br /> <br />265,500 <br /> <br />1,452,000 <br />47.800 <br /> <br />1.499,800 <br />5.65: 1 <br /> <br />!! Based on a per-acre. foot value of $44 for irrigation water. <br /> <br />b <br /> <br />f. ,_~, ..r. " 11 <br />v,- . G,'.....r ~ <br />