Geothermal and Hydrogeologic Controls on Regional Groundwater Temperatures

Erick R Burns, USGS Oregon Water Science Center, Portland, OR, United States, Steve Ingebritsen, USGS Western Regional Offices Menlo Park, Menlo Park, CA, United States, Colin Francis Williams, USGS, Baltimore, MD, United States and Michael Manga, University of California, Berkeley, Earth and Planetary Science, Berkeley, United States