TY - RPRT TI - Insights into controls on hexavalent chromium in groundwater provided by environmental tracers, Sacramento Valley, California, USA AU - Andrew H. Manning AU - Christopher T. Mills AU - Jean M. Morrison AU - Lyndsay B. Ball PY - 2015 DO - 10.1016/j.apgeochem.2015.05.010 UR - https://pubs.usgs.gov/publication/70160922 ID - 70160922 ER -