LEADER 01718nam 2200397 a 450 001 9910699038603321 005 20091207092650.0 035 $a(CKB)5470000002399501 035 $a(OCoLC)474887803 035 $a(EXLCZ)995470000002399501 100 $a20091207d2008 ua 0 101 0 $aeng 135 $aurmn||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aStatistical analysIs of major ion and trace element geochemistry of water, 1986-2006, at seven wells transecting the freshwater/saline interface of the Edwards Aquifer, San Antonio, Texas$b[electronic resource] /$fby Barbara J. Mahler ; in cooperation with the San Antonio Water System 210 1$aReston, Va. :$cU.S. Dept. of the Interor, U.S. Geological Survey,$d2008. 215 $a1 online resource (v, 46 pages) $cillustrations (some color), color maps 225 1 $aScientific investigations report ;$v2009-5224 300 $aTitle from PDF title screen (viewed Dec. 7, 2009). 320 $aIncludes bibliographical references (pages 45-46). 606 $aWater chemistry$zTexas$zEdwards Aquifer 606 $aTrace elements in water$zTexas$zEdwards Aquifer 607 $aEdwards Aquifer (Tex.) 615 0$aWater chemistry 615 0$aTrace elements in water 700 $aMahler$b B. J$g(Barbara June),$f1959-$01382534 712 02$aSan Antonio Water System (Tex.) 712 02$aGeological Survey (U.S.) 801 0$bGPO 801 1$bGPO 906 $aBOOK 912 $a9910699038603321 996 $aStatistical analysIs of major ion and trace element geochemistry of water, 1986-2006, at seven wells transecting the freshwater$93440563 997 $aUNINA