LEADER 01900nam 2200409Ia 450 001 9910700219503321 005 20110620120940.0 035 $a(CKB)5470000002408785 035 $a(OCoLC)731690718 035 $a(EXLCZ)995470000002408785 100 $a20110620d2010 ua 0 101 0 $aeng 135 $aurcn||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 00$aGeochemical evolution processes and water-quality observations based on results of the National Water-Quality Assessment Program in the San Antonio segment of the Edwards Aquifer, Texas, 1996-2006$b[electronic resource] /$fby MaryLynn Musgrove ... [and others] ; U.S. Geological Survey National Water-Quality Assessment Program 210 1$aReston, Va. :$cU.S. Dept. of the Interior, U.S. Geological Survey,$d2010. 215 $a1 online resource (xi, 93 pages) $cillustrations (chiefly color), color maps 225 1 $aScientific investigations report ;$v2010-5129 300 $aTitle from title screen (viewed on June 20, 2011). 320 $aIncludes bibliographical references (pages 53-60). 606 $aGroundwater$xSampling$zTexas$zEdwards Aquifer 606 $aGroundwater flow$zTexas$zEdwards Aquifer 606 $aGeochemistry$zTexas$zEdwards Aquifer$xTesting 615 0$aGroundwater$xSampling 615 0$aGroundwater flow 615 0$aGeochemistry$xTesting. 701 $aMusgrove$b MaryLynn$f1964-$01394247 712 02$aGeological Survey (U.S.) 712 02$aNational Water-Quality Assessment Program (U.S.) 801 0$bGPO 801 1$bGPO 906 $aBOOK 912 $a9910700219503321 996 $aGeochemical evolution processes and water-quality observations based on results of the National Water-Quality Assessment Program in the San Antonio segment of the Edwards Aquifer, Texas, 1996-2006$93512159 997 $aUNINA