Determining geothermal potential is a complex combination of database development, computer modeling, drilling and hands-on site survey work.  Many of the bore holes (wells) are high pressure Artesian so we have to follow safety precautions to deal with scalding water while taking various measurements and collecting samples.  Standing in 180F water is not… well…. cool.  When we see the comment, “I think I have melted my work boots” in the work logs, we know we have another viable geothermal resource and we search for more heat resistant work boots for our staff.