TY - RPRT TI - Groundwater-quality data in the Santa Cruz, San Gabriel, and Peninsular Ranges Hard Rock Aquifers study unit, 2011-2012: results from the California GAMA program AU - Tracy A. Davis AU - Jennifer L. Shelton PY - 2014 DO - 10.3133/ds874 UR - https://pubs.usgs.gov/publication/ds874 ID - ds874 ER -