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<br />. <br /> <br />CJ aGed ~_!!.~.:..~~~~~r_~:sj gn Changos, Hdr.~b 198J~ <br /> <br />Eouse Document 91-369 <br />(primarily,_1963 ~':l <br /> <br />"~later salvage <br />amounts <br /> <br />100,800 ac-ft/yr <br /> <br />.I.later salvage. <br />sources <br /> <br />about 15% surface water <br />about 85% ground water <br /> <br />Hater salvage <br />area <br /> <br />108,600 acres <br /> <br />._.______N~~~er.~J_saby~ge_ <br />wells <br /> <br />136----- <br /> <br />ConveyanCE: channel <br /> <br />Main aAd East conveyance <br />channels, about 57 miles <br />long, ~ith compacted earth <br />lining <br /> <br />Rio Grande rectification <br />below channel outfall <br /> <br />In 1971 authorization, <br />but not costed in 1963 <br />and 1910 plans <br /> <br />San Luis Lake <br />(enhancement) <br /> <br />Connecting channel from <br />Nain conveyance channel <br /> <br />Nishak National Wildlife <br />Refuge (tfwR) <br />(mitigation) <br /> <br />Full 13,800 acre refuge <br />establishment, supplied <br />by surface water <br />(trade ground/surface <br />.-water) <br /> <br />Alamosa NHR <br />(mitigation) <br /> <br />5,300 ac-ft/yr supply; <br />eastern channel a1inement <br />through refuge <br /> <br />Laterals from wells to <br />conveyance channel <br /> <br />Open ditches <br /> <br />Pov.,1erlines <br /> <br />All overhead <br /> <br />6 <br /> <br />1919 Plans <br />(No". 1979 DPR) <br /> <br />100,600 ac-ft/yr <br /> <br />all ground water <br /> <br />130,000 acres l/ <br />(19/2 water rights <br />application) <br /> <br />.. - - -1523.7"- <br /> <br />Realined for single <br />conveyance channel, <br />about 42 miles long, <br />unlined ]./ <br /> <br />Proposed unnecessary <br />and not costed <br /> <br />Route ground water <br />directly from wells, <br />including through <br />Head Lake; provide <br />flow-through system <br /> <br />Nil surface water; <br /> <br />this mitigation <br /> <br />feature to be sized <br /> <br />or determined after <br /> <br />project division <br /> <br />impacts reevaluated <br />4/ <br /> <br />Same supply; north- <br />western channel <br />a1inemcnt through <br />refuge <br /> <br />Buried pipeline with <br />surge controls <br /> <br />Buried within wel1- <br />fields; overhead <br />trunk1ines <br />