TY - RPRT TI - Groundwater levels and water-quality observations pertaining to the Austin Group, Bexar County, Texas, 2009-11 AU - J.R. Banta AU - Allan K. Clark PY - 2012 DO - 10.3133/sir20125278 UR - https://pubs.usgs.gov/publication/sir20125278 ID - sir20125278 ER -