Revision History for DS 718 Peter R. Wright, Peter B. McMahon, David K. Mueller, and Melanie L. Clark Groundwater-Quality and Quality-Control Data for Two Monitoring Wells near Pavillion, Wyoming, April and May 2012 Posted online September 27, 2012 Revised and reposted October 29, 2012 The text version was modified. A sentence was added on page 12 that updates expected and received analytical results for noble gases helium, krypton, neon and xenon. The text was modified to indicate that the analysis for these gases could not be performed because of sample loss between collection of sample and analysis in the laboratory. Table 11 was modified to include tritium data. Two rows were added to include the analytical laboratory and the tritium data. One column was modified to include a footnote and laboratory result qualifier. Two rows were added as a footnote to explain the meaning of the laboratory result qualifier.