02043nam 2200433Ia 450 991070079470332120110721101540.0(CKB)5470000002411056(OCoLC)741942169(EXLCZ)99547000000241105620110721d2011 ua 0engurcn|||||||||txtrdacontentcrdamediacrrdacarrierNitrate concentrations and potential sources in the Barton Springs segment of the Edwards Aquifer and its contributing zone, central Texas[electronic resource] /Barbara J. Mahler, MaryLynn Musgrove, and Chris Herrington[Reston, Va.] :U.S. Dept. of the Interior, U.S. Geological Survey,[2011]1 online resource (4 unnumbered pages) color illustrations, color mapsFact sheet ;2011-3035Title from title screen (viewed on July 18, 2011)."In cooperation with the City of Austin, City of Dripping Springs, Barton Springs/Edwards Aquifer Conservation District, Lower Colorado River Authority, Hays County, and Travis County.""May 2011."Includes bibliographical references (p. [4]).NitratesEnvironmental aspectsTexasBarton Springs/Edwards Aquifer Conservation DistrictSeptic tanksEnvironmental aspectsTexasBarton Springs/Edwards Aquifer Conservation DistrictNitratesEnvironmental aspectsSeptic tanksEnvironmental aspectsMahler B. J(Barbara June),1959-1382534Musgrove MaryLynn1964-1394247Herrington Chris1421967Austin (Tex.)Geological Survey (U.S.)GPOGPOBOOK9910700794703321Nitrate concentrations and potential sources in the Barton Springs segment of the Edwards Aquifer and its contributing zone, central Texas3544904UNINA