Gregory Wetterau, PE, BCEE
Water reuse and desalination expert Greg Wetterau is a senior environmental engineer who has been involved in the piloting, design and facility start-up for more than 50 membrane treatment facilities around the world. His expertise in process and system design for desalination and advanced wastewater treatment has helped clients like the Water Replenishment District of Southern California expand and upgrade their potable reuse facility, all while complying with evolving state regulations. And with roles on the boards of directors for the American Membrane Technology Association and the International Desalination Association, Greg has proven the value of his unconventional approach to water supply.
What’s your favorite part of your job? Walking through a plant we designed, listening to the hum of the equipment and sharing a drink of the finished product with our clients...this tends to work best at the potable water plants.
What does “listen. think. deliver.” mean to you? There’s an old saying that we should be quick to listen and slow to speak. While this pause doesn’t always come naturally for some of us, it’s a virtue that allows us to remain the client-focused firm we have built our reputation around.
What’s something you enjoy doing on your day off? Taking a long hike in the mountains with my wife and kids.
What’s your personal motto? Life’s worth is measured in the things we’ve given up more than the things we’ve kept.


I joined CDM Smith because of the great projects, but I’ve stayed because of the great people.
Did you know?
Greg has worked on water projects on six continents.

