Professor Tom Johnson has been elected as a Fellow of the Geological Society of America at its Spring 2018 council. GSA Fellowship is an honor bestowed on the best in our profession in recognition of their distinguished contributions to the geosciences through publications, applied research, teaching, and administration of geological programs. Tom was recognized for his fundamental contributions to the analysis of chromium, selenium, mercury, and uranium isotopes in groundwater, in the context of environmental hydrogeology. In addition, Tom’s role as an innovative and admired teacher, and inspiring Head of Department at Illinois, were also cited in his nomination. Congratulations Tom!