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Connect with our talented staff from the Ohio, Kentucky, and Indiana offices. Each contributes to our science - whether it be scientific, laboratory, information technology, administrative and/or advanced technology expertise. We are a combined center of more than 160 employees. You can also discover more about the USGS and our science through social media.


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Employee Directory

Job Title Name Email Phone
Hydrologist Paul Baker 317-600-2781
Hydrologist (Geog) Nancy Baker 317-600-2785
Groundwater Specialist Randall Bayless 463-246-8664
Hydrologist Erin Bertke 614-430-7712
Hydrologist Justin Boldt 502-493-1931
Supervisory Hydrologist Amie M Brady 614-202-9114
Biologist Aubrey Bunch 317-697-1651
QMS Senior Scientist Rebecca Bushon 614-430-7783
Hydrologist Paul Buszka 317-452-0164
Physical Scientist Daniel Button 614-430-7737
Microbiologist Jessica Cicale 614-570-6255
Director (Acting) Peter Cinotto 505-830-7901
Administrative Officer Tonja Clark 317-345-1236
Hydrologic Technician Maria Clemens
Biologist Alex Covert 614-430-7752
Hydrologist Angela Crain 502-493-1943
Physical Scientist Hunter Crates
Charles G Crawford, Ph.D. 317-350-0010
Hydrologist (Groundwater Specialist) Robert Darner 614-430-7756
Hydrologist Edward Dobrowolski 317-697-1642
Hydrologist Catherine Fargen 502-493-1945
Hydrologic Technician Andre Ferguson 502-493-1910
Physical Scientist Dennis Finnegan 614-430-7731
Center Director Jeff Frey 317-340-5028
New Philadelphia Field Office Chief / Supervisory Hydrologist Steven Fuller 330-343-2343
Hydrologic Technician Autumn Gibson 502-648-8972
Hydrologic Technician Andrew Gorman 317-601-1387
Data Chief / Supervisory Hydrologist Thomas Harris 614-430-7727
Physical Scientist Dayle Jordan Hoefling 502-791-3247
Hydrologist Carrie Huitger 614-430-7755
Hydrologic Technician Donnie Keeling 270-759-2460
Microbiologist Christopher Kephart 614-430-7780
Hydrologist (Emeritus) Greg Koltun 614-430-7708
Hydrologic Technician Courtney Kramer
Biologist Stephanie Kula 614-430-7739
Associate Director (Acting) - Indiana David C Lampe 317-416-6480
Biologist Braden Lanier 571-386-7295
Hydrologist Timothy Lathrop 317-600-2782
Physical Scientist Nadine Lepore 502-469-8362
Hydrologic Technician Molly Lott 502-493-1923
Biologist Lauren Lynch 614-254-4064
Hydrologist Gary R Martin 502-493-1914
Hydrologist Madelyn Messner
Physical Science Technician Ben Michels 502-645-1154
Hydrologist Shawn Naylor
Hydrologist Shawn C Naylor
Hydrologist Hieu Nguyen 317-697-1589
Hydrologist Chad Ostheimer 614-430-7750
Physical Scientist Shannon Pace 732-882-9804
Hydrologist Harvie Pollard 317-753-8926
Hydrologic Technician Ed Puckett 502-493-1926
Hydrologic Technician Zachary Razor 317-601-2825
Hydrologic Technician Abigale M Rose 614-506-9066
Hydrologic Technician Ian Sampson
Microbiologist Max Schroeder 614-430-7729
Hydrologist Megan Shoda
Hydrologic Technician Ben Sperl 317-617-2056
Microbiologist Erin A Stelzer 614-516-1188
Amy Story 317-601-6888
Deputy Director - Ohio David Straub 614-506-8349
Physical Scientist Chad Toussant 614-430-7766
Hydrologic Technician Branden Vonins 614-430-7764
Physical Scientist and UAS Pilot J. Jeremy Webber 317-600-2755
Hydrologist Matthew T Whitehead 614-430-7749
Research Hydrologist Tanja N. Williamson, PhD 502-413-7699
Hydrologist John T. Wilson 463-206-1595
Supervisory Hydrologist Jeffrey Woods 317-430-3086
Physical Science Technician Logan Young 502-645-0791