Marvin F. Glotfelty, RG, cofounder and principal hydrogelogist with Clear Creek Associates, a groundwater consulting firm with offices in Arizona, California, and Virginia, is a licensed well driller in Arizona and has served as the technical director of the Arizona Water Well Association since 1990. He is a registered geologist in Arizona and California.
During his professional career spanning nearly three decades, Glotfelty has participated in almost every aspect of the hydrogeologic sciences including recharge projects, water supply studies, water rights issues, groundwater quality, well installation programs, and well rehabilitation projects. He’s been involved with the design, installation, rehabilitation, or abandonment of more than 800 water wells in the southwestern United States.
Glotfelty has given more than 100 presentations on hydrogeologic and water well topics in 17 U.S. states and five other countries — Australia, Bolivia, Canada, Colombia, and Mexico. He’s authored more than 20 publications, served as a senior editor for the Illustrated Glossary of Driller’s Terms published by NGWA Press in 2003, and provided editorial review for a chapter in the third edition of Groundwater & Wells published by Johnson Screens in 2008. In 1995, Glotfelty received the City of Phoenix Mayor’s Environmental Award for his work with rehabilitation of municipal wells to improve their water quality, and, in 2012, Glotfelty served as the McEllhiney Lecturer. Glotfelty holds bachelor’s and master’s degrees in geology from Northern Arizona University.