01812oam 2200481 450 991070532890332120141124130314.0(CKB)5470000002450090(OCoLC)896826599(EXLCZ)99547000000245009020141124d2013 ua 0engurcn|||||||||txtrdacontentrdamediardacarrierOrigin and characteristics of discharge at San Marcos Springs, south-central Texas /prepared in cooperation with the San Antonio Water System[Reston, Virginia?] :U.S. Department of the Interior, U.S. Geological Survey,2013.1 online resource (6 unnumbered pages) color illustrations, color mapsFact sheet,2327-6916 ;2013-3033Title from title screen (viewed on Nov. 24, 2014)."November 2013.""By MaryLynn Musgrove and Cassi L. Crow"--P. [6].Includes bibliographical references (page [6]).GroundwaterSodium contentTexasEdwards AquiferGroundwater flowTexasEdwards AquiferSaltwater encroachmentTexasEdwards AquiferSpringsTexasEdwards AquiferGroundwaterSodium contentGroundwater flowSaltwater encroachmentSpringsMusgrove MaryLynn1964-1394247Crow Cassi L.San Antonio Water System (Tex.),Geological Survey (U.S.),GPOGPOGPOBOOK9910705328903321Origin and characteristics of discharge at San Marcos Springs, south-central Texas3451353UNINA