LEADER 02626oam 2200661 450 001 9910715963203321 005 20210407095934.0 035 $a(CKB)5470000002516462 035 $a(OCoLC)971497649$z(OCoLC)1105382232 035 $a(OCoLC)995470000002516462 035 $a(EXLCZ)995470000002516462 100 $a20170206d1992 ua 0 101 0 $aeng 135 $aurbn||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aReconnaissance investigation of water quality, bottom sediment, and biota associated with irrigation drainage in the Gunnison and Uncompahgre River basins and at Sweitzer Lake, west-central Colorado, 1988-89 /$fby David L. Butler [and four others] 210 1$aDenver, Colorado :$cU.S. Geological Survey,$d1991. 215 $a1 online resource (vii, 99 pages) $cillustrations, maps 225 1 $aWater-resources investigations report ;$v91-4103 300 $a"Prepared in cooperation with the U.S. Fish and Wildlife Service and the U.S. Bureau of Reclamation." 320 $aIncludes bibliographical references, pages 71-76. 606 $aIrrigation$xEnvironmental aspects$zColorado 606 $aRiver sediments$zColorado 606 $aWater quality$zColorado 606 $aFreshwater organisms$zColorado 606 $aLakes$zColorado$zDelta 606 $aIrrigation$xEnvironmental aspects$2fast 606 $aIrrigation water$xPollution$2fast 606 $aSelenium$xEnvironmental aspects$2fast 607 $aUncompahgre River Watershed (Colo.) 607 $aGunnison River Watershed (Colo.) 607 $aColorado$2fast 615 0$aIrrigation$xEnvironmental aspects 615 0$aRiver sediments 615 0$aWater quality 615 0$aFreshwater organisms 615 0$aLakes 615 7$aIrrigation$xEnvironmental aspects. 615 7$aIrrigation water$xPollution. 615 7$aSelenium$xEnvironmental aspects. 700 $aButler$b David L$g(David Louis),$f1946-$01380675 712 02$aGeological Survey (U.S.), 712 02$aU.S. Fish and Wildlife Service. 712 02$aUnited States.$bBureau of Reclamation. 801 0$bCOP 801 1$bCOP 801 2$bOCLCO 801 2$bOCLCF 801 2$bOCLCA 801 2$bOIP 801 2$bOCLCE 801 2$bGPO 906 $aBOOK 912 $a9910715963203321 996 $aReconnaissance investigation of water quality, bottom sediment, and biota associated with irrigation drainage in the Gunnison and Uncompahgre River basins and at Sweitzer Lake, west-central Colorado, 1988-89$93437287 997 $aUNINA