01737oam 2200421Ia 450 991069959970332120230902161819.0(CKB)5470000002402924(OCoLC)692186590(EXLCZ)99547000000240292420101213d2010 ua 0engurcn|||||||||txtrdacontentcrdamediacrrdacarrierSources of groundwater based on helium analyses in and near the freshwater/saline-water transition zone of the San Antonio segment of the Edwards Aquifer, south-central Texas, 2002-03[electronic resource]by Andrew G. Hunt, Rebecca B. Lambert, and Lynne Fahlquist ; in cooperation with the San Antonio Water SystemReston, Va. :U.S. Dept., of the Interior, U.S. Geological Survey,2010.1 online resource (iv, 15 pages) color illustrations, color mapsScientific investigations report ;2010-5030Title from PDF title screen (viewed on Dec. 13, 2010).Includes bibliographical references (pages 14-15).Scientific investigations report ;2010-5030.GroundwaterTexasSan AntonioEdwards Aquifer (Tex.)GroundwaterHunt Andrew G1413923Lambert Rebecca B1409345Fahlquist Lynne1959-1382535San Antonio Water System (Tex.)Geological Survey (U.S.)GPOGPOGPOBOOK9910699599703321Sources of groundwater based on helium analyses in and near the freshwater3511594UNINA