LEADER 01952oam 2200457I 450 001 9910704411503321 005 20130408152428.0 035 $a(CKB)5470000002441584 035 $a(OCoLC)836829825 035 $a(EXLCZ)995470000002441584 100 $a20130408d2012 ua 0 101 0 $aeng 135 $aurcn||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aEstablishment of sentinel sampling sites to monitor changes in water and sediment quality and biota related to visitor use at Lake Powell, Arizona and Utah, 2004-2006 /$fby Robert J. Hart, Howard E. Taylor, and G.M. Anderson ; prepared in cooperation with the National Park Service, Glen Canyon National Recreation Area 210 1$aReston, Virginia :$cU.S. Department of the Interior, U.S. Geological Survey,$d2012. 215 $a1 online resource $ccolor illustrations 225 1 $aOpen-file report ;$v2012-1237 300 $aTitle from title screen (viewed on Apr. 5, 2013). 320 $aIncludes bibliographical references. 606 $aWater quality$zPowell, Lake (Utah and Ariz.) 606 $aLake sediments$zPowell, Lake (Utah and Ariz.) 606 $aWater$xPollution$xSampling$zPowell, Lake (Utah and Ariz.) 607 $aGlen Canyon National Recreation Area (Utah and Ariz.) 615 0$aWater quality 615 0$aLake sediments 615 0$aWater$xPollution$xSampling 700 $aHart$b Robert J.$0285964 702 $aTaylor$b Howard E. 702 $aAnderson$b G. M. 712 02$aGeological Survey (U.S.), 712 02$aUnited States.$bNational Park Service, 801 0$bGPO 801 1$bGPO 801 2$bGPO 906 $aBOOK 912 $a9910704411503321 996 $aEstablishment of sentinel sampling sites to monitor changes in water and sediment quality and biota related to visitor use at Lake Powell, Arizona and Utah, 2004-2006$93509046 997 $aUNINA