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30th Clarke Prize Nominations Open

NWRI and the Joan Irvine Smith and Athalie R. Clarke Foundation are pleased to announce
that the nomination period for the 2023 Clarke Prize is open.
We invite you to nominate qualified candidates to become the next Clarke Prize Laureate.

To submit a nomination, download the nomination packet (below) and email to by May 31, 2023. The winner will deliver the 2023 Clarke Prize Lecture at the Beckman Center at the National Academies of Sciences & Engineering in Irvine, California, on October 21, 2023.

About the Clarke Prize

The Clarke Prize is awarded annually to thought leaders in water research, science, technology, or policy in the United States. 


Clarke Prize nominees and laureates are from wide-ranging disciplines including civil and environmental engineering, water science, biological science, health science, political science, physical and chemical science, and public planning and policy. These people are focused on water quality, quantity, technology, or public policy.

The Clarke Prize is distinguished by the International Congress of Distinguished Awards as one of the most prestigious water awards in the world.

Clarke Prize 25th Anniversary

Clarke Prize 25th Anniversary

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Joan Irvine Smith and
Athalie Richardson Irvine Clarke


"Nothing is more important than the careful stewardship and development of our water resources." NWRI's co-founder, Athalie Richardson Irvine Clarke said these important words because she recognized the vital importance of water in Southern California.

Since the prize was established in 1993, the Joan Irvine Smith and Athalie R. Clarke Foundation has supported some of the most influential people in the water industry. (Read about them on the Past Clarke Prize Laureates page.)

Recipients receive a medal and $50,000 US.

Joan Irvine Smith
Athalie R. Irvine Clarke

Joan Irvine Smith

Athalie Richardson Irvine Clarke

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