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Water Management Association of Ohio

                                The only organization dedicated to all of Ohio's water resources.

What We Do


For nearly 50 years, WMAO has served Ohio by promoting effective management of our shared water resources. We are the only professional organization in Ohio focused on all water disciplines, administered through five divisions and multiple interest areas. WMAO provides a forum of open discussion, industry evaluation, and educational outreach for its diverse membership to communicate and learn.

The 2020 Ohio Rivers Symposium was held on November 3rd in conjunction with the 49th Annual WMAO Conference. A recording* of Session IV (2 hours) and Session VI (1.5 hours) can be viewed here:


Session IV (passcode: 4hi=KTn7)
Director Mary Mertz, ODNR
Brian Zimmerman, Ohio State University
Mike Angle, ODNR
Laura Johnson, Heidelberg University

Session VI  (passcode: *ih07BGM) 
Greg Lipps, Ohio State University
Michael Hoggarth, Otterbein University
Martin McAllister, The Nature Conservancy

*No other sessions during the WMAO conference have been recorded.


November 12, 2020 - OSWA - Ohio EPA MS4 Audits

December 8th & 15th - OFMA 2020 Ohio Statewide Floodplain Management Conference
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Ohio Water Education Program  Affiliated Student Organizations
WMAO Award Nominations
                                                                                                                                Photo Credit: Eugene Braig