TY - RPRT TI - Geophysical delineation of the freshwater/saline-water transition zone in the Barton Springs segment of the Edwards Aquifer, Travis and Hays Counties, Texas, September 2006 AU - J.D. Payne AU - W.H. Kress AU - S.D. Shah AU - J.E. Stefanov AU - B.A. Smith AU - B.B. Hunt PY - 2007 DO - 10.3133/sir20075244 UR - https://pubs.usgs.gov/publication/sir20075244 ID - sir20075244 ER -