TY - RPRT TI - Recent (2008-10) water quality in the Barton Springs segment of the Edwards aquifer and its contributing zone, central Texas, with emphasis on factors affecting nutrients and bacteria AU - Barbara Mahler AU - MaryLynn Musgrove AU - Thomas L. Sample AU - Corinne I. Wong PY - 2011 DO - 10.3133/sir20115139 UR - https://pubs.usgs.gov/publication/sir20115139 ID - sir20115139 ER -