Bryon Ringley, Senior Principal, Stantec
Greg Koltun, Hydrologist, United States Geological Survey
Bryon Ringley is a Senior Principal at Stantec, in the Columbus, Ohio office. Bryon has a Bachelor of Civil Engineering from the University of Evansville (Indiana) and a Master of Science in Hazardous and Waste Materials Management from Southern Methodist University (Dallas, TX). Bryon is a registered professional engineer in Ohio, Indiana and Kentucky. Bryon has been the Project Manager on several high profile water resources projects here in central Ohio: The Main Street Dam Removal and Scioto Greenways Project; The 5th Avenue Dam Removal and Lower Olentangy River Restoration; Green Infrastructure for Pollution Reduction at the Columbus Reservoirs; and South Fork Licking River Channel Improvements for ODNR near Buckeye Lake.
Greg Koltun is a hydrologist with the U.S. Geological Survey (USGS), Michigan-Ohio Water Science Center, where he is the discipline specialist for surface-water hydrology, hydraulics, and sediment transport. Since joining the USGS in 1980, he has served as principal investigator or co-investigator on a wide variety of projects dealing with topics in hydrology; hydraulics, computer applications and modeling, microbiology, and water quality. Greg attended the Ohio State University where he obtained a B.S. in Microbiology and a M.S. in Civil Engineering.
