Open-File Report 2014–1020
The author is grateful to Daniel J. Goode (USGS) for guidance and advice and for preparation of the map figure. Also acknowledged are USGS colleagues Robert Rosman for technical support, Carla A. Valdes for field assistance, and Pierre J. Lacombe and Thomas E. Imbrigiotta for additional advice and for providing data from their investigations. Keith J. Halford provided an update of the spreadsheet programs for slug-test analysis. Technical reviews of this report were provided by Daniel J. Goode and Alison D. Gordon.