LEADER 01869oam 2200409Ia 450 001 9910696550903321 005 20080428150009.0 035 $a(CKB)5470000002379343 035 $a(OCoLC)122509195 035 $a(EXLCZ)995470000002379343 100 $a20070406d2007 ua 0 101 0 $aeng 135 $aurmn||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aRelation of specific conductance in ground water to intersection of flow paths by wells, and associated major ion and nitrate geochemistry, Barton Springs segment of the Edwards aquifer, Austin, Texas, 1978-2003$b[electronic resource] /$fby Bradley D. Garner and Barbara J. Mahler ; in cooperation with the City of Austin 210 1$aReston, Va. :$cU.S. Geological Survey,$d2007. 215 $av, 171 pages $cdigital, PDF file 225 1 $aScientific investigations report ;$v2007-5002 300 $aTitle from PDF title screen (viewed on Apr. 5, 2007). 320 $aIncludes bibliographical references (pages 37-39). 606 $aGroundwater flow$zTexas$zBarton Springs/Edwards Aquifer Conservation District 606 $aGroundwater$xNitrogen content$zTexas$zBarton Springs/Edwards Aquifer Conservation District 615 0$aGroundwater flow 615 0$aGroundwater$xNitrogen content 700 $aGarner$b Bradley D$01398222 701 $aMahler$b B. J$g(Barbara June),$f1959-$01382534 712 02$aAustin (Tex.) 712 02$aGeological Survey (U.S.) 801 0$bGIS 801 1$bGIS 801 2$bGPO 906 $aBOOK 912 $a9910696550903321 996 $aRelation of specific conductance in ground water to intersection of flow paths by wells, and associated major ion and nitrate geochemistry, Barton Springs segment of the Edwards aquifer, Austin, Texas, 1978-2003$93508719 997 $aUNINA