Michael Wehner

Assistant General Manager
Orange County Water District


Mike Wehner is the Assistant General Manager at Orange County Water District (OCWD) and manages Water Quality and Technology programs at the District.  Mike was also responsible for obtaining regulatory approval and bolstering public support for the Groundwater Replenishment System, the world’s largest potable reuse system, which currently provides 70 MGD of high purity recycled water to prevent seawater intrusion and replenish the Orange County groundwater basin.  Prior to joining OCWD, he spent 20 years with Orange County Environmental Health where he was Water Quality Program Chief. 

Mike is an internationally recognized expert in water quality, public health and advanced water purification technology and has served on advisory panels for the National Water Research Institute, WaterRF, the WateReuse Research Foundation, the NRC, US EPA, CDPH, the State Water Resources Control Board, UK Water Industry Research, Thames Water, CSIRO in Australia and the PUB in Singapore.