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<br /> ASSESSMENT SHEET <br /> WATER QUANTITY LEVELS <br />Description of Area: Virgin Valley Subevaluation Unit, Arizona, Nevada, Utah <br /> Future Conditions <br /> Plcminll Alternatives <br /> Present Future I I <br />Parameters Unit Conditions Without 1 2 <br />Rivers (Virgin River) <br /> Perennial miles 43.5 43.5 43.5 43.5 <br /> Average discharge <br /> (Littlefield Gage) cfs 305 305 305 305 , <br /> Average cmual yield <br /> Littlefield Gage) ac-ft 220,800 220,900 221,000 221,000 <br /> Minimum flow - Virgin <br /> River cfs 38 38 38 38 <br /> No flow Virgin at <br /> Littlefield dayslyr -0- -0- -0- -0- <br /> Stream size by reach <br /> width 125 ft. to 75 ft. miles 43.5 43.5 43.5 43.5 ,~{ <br /> depth 1 ft. to 10 ft. miles 43.5 43.5 43.5 43.5 <br /> Streambank miles 87.0 87.0 87.0 87.0 <br />Lakes or reservoir - none <br /> , <br />Ground water <br /> ~1ajor springs II no. 2 2 2 2 <br /> Available storage <br /> (to 100 ft. depth) ac-ft 2,900,000 2,900,000 2,900,000 2,900,000 <br /> Expected life years indef. indef. indef. indef. ~V:; <br />II State of Nevada, Water Resources-Reconnaissance Report No. 51. <br /> <br />A-8 <br /> <br />00C329 <br />