BOARD MEMBERS

Mike Schwar, PhD, PE, CFM
Chair 

Michael Schwar is Principal Water Resources Engineer at Stony Point Hydrology LLC. Mike has over 30 years of professional and academic experience focusing on the hydrology and hydraulics of surface water systems, with special emphasis on the restoration of streams, rivers, lakes and wetlands. He has worked on more than 150 surface water projects in 22 states, Canada and Puerto Rico. Mike received his Ph.D. (Civil Engineering) from the UW-Madison, is a registered professional engineer in Wisconsin and five other states, and has been a Certified Floodplain Manager since 2006. When he is not restoring ecosystems or reducing flood risk he may be fishing with his family.

E-mail: Mike Schwar

Susan Coyle, PE, CFM
Vice Chair 

Susan Coyle is Baxter & Woodman’s Wisconsin Water Resources Department Manager, leading a team that delivers flood management, stormwater, and municipal services. Previously, she worked for the Milwaukee Metropolitan Sewerage District (MMSD), where she managed planning-level studies and modeling, supported Watercourse projects with floodplain mapping changes, and enforced MMSD’s Stormwater Rule. Susan values the way flood management affects communities and enjoys translating complex technical information for non-technical audiences. She holds a Master of Science in Civil Engineering from Purdue University and a Bachelor of Civil Engineering from the Georgia Institute of Technology. Susan is a registered professional engineer in Wisconsin and Illinois and a Certified Floodplain Manager. She chairs the Board of Directors for the Southeastern Wisconsin Watersheds Trust (Sweet Water) and serves on the Steering Committee for the Future City Competition Wisconsin Region. In her free time, she enjoys traveling, gardening, and hiking along streams and in urban areas (aka urban hiking).

E-mail: Susan Coyle

Aaron Wallner, PE
Secretary 

Aaron Wallner is a Water Resources Project Manager at Becher Hoppe Associates, Inc. Aaron has over 14 years of engineering experience with the first half of his career being with the Northeast and Northcentral regions of the Wisconsin Department of Transportation. While at Becher Hoppe Aaron has shifted his focus to dam inspections, dam failure analysis, hydrologic and hydraulic studies, stormwater management, and permitting for sensitive areas. Aaron received his bachelor’s degree in Civil Engineering with an emphasis in environmental, municipal, and transportation studies from the University of Wisconsin Platteville. In his free time Aaron enjoys spending his time outdoors with his family camping, hiking, biking, or competing in adventure races.

E-mail: Aaron Wallner

Minal Hahn, PE, CFM
Treasurer 

Minal Hahm is the co-founder of M Squared Engineering (M²), now part of DB Sterlin Consultants, Inc. She has civil engineering experience in transportation engineering, hydrologic and hydraulic analysis, stormwater management design, recreational facilities design, residential, commercial and industrial land development, agency permitting, and public works design in both Wisconsin and Illinois. She is a Certified Floodplain Manager (CFM), with a strong understanding of local, as well as, federal requirements as they relate to stormwater and site development projects. Minal serves on WAFSCM, Friends of Cedarburg Parks and Rec, coaches her daughter’s Destination imagination team, and has served as a judge and finals round judge for the Future City Competition in Milwaukee for the past 16 years. In her free time, she is currently working on getting her private pilot’s license.

E-mail: Minal Hahn