Dave Colvin is the Groundwater Team Leader responsible for providing technical leadership and coordination of a diverse group of groundwater experts. He is a collaborative hydrogeologist with over 20 years experience in groundwater services, water resources, environmental science, and project management. Dave is currently focused on riverbank filtration, soil aquifer treatment, managed aquifer recharge (ASR and alluvial recharge), groundwater modeling, model uncertainty analysis, expert witness testimony and integrated water resource management. He holds a B.S. in Geology from Syracuse University (1996), and an M.S. in Environmental Science and Engineering from the Colorado School of Mines (2002). Dave is a licensed Professional Geologist in Arizona, Texas, Idaho, Wyoming, and Kansas. He is a certified Project Management Professional and a Water Education Colorado Water Leader. He is happiest while playing in the mountains with his wife and two daughters.