Revision History: Version 1.1 for DS 463 Timothy M. Mathany, Justin T. Kulongoski, Mary C. Ray, and Kenneth Belitz Groundwater-Quality Data in the South Coast Interior Basins Study Unit, 2008: Results from the California GAMA Program ----------------------------------------------------- Posted online September 21, 2009 ----------------------------------------------------- Revised and reposted September 13, 2010 NOTE for clarification: Table 3F (Trace elements, comparative thresholds...) page 35: the Threshold level in header says mg/L, the threshold level should say µg/L. Table 3J (Isotopic and radioactive constituents, comparative thresholds…) page 37: the USGS parameter codes read: 99920 and 99921 for gross alpha radioactivity (72-hour and 30 day counts, respectively) and 99922 and 99923 for gross beta radioactivity (72-hour and 30 day counts, respectively). They should say 62636, 62639 (gross alpha radioactivity 72-hour and 30 day counts) and 62642, 62645 (gross beta radioactivity 72 hour and 30-day counts). -----------------------------------------------------