About Us

Who Manages the Basin?

Managing the Main San Gabriel Basin and ensuring it has safe, clean and reliable water is crucial to our everyday lives. That’s where we come in — the Main San Gabriel Basin Watermaster. We were created in 1973 by the Los Angeles County Superior Court. Our nine-member board administers the basin’s adjudicated water rights and provides a governing body responsible for managing the quantity and quality of our water resources. A lot of work goes into every glass of water enjoyed — from our management of the basin to the delivery of its water by your local water agency.

Learn more about us at www.watermaster.org.

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​Telephone : 626-815-1300

725 North Azusa Avenue 

Azusa, CA 91702

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