About Us


Hello

Everyday, we have you in mind as we take care and manage the underground water supply all of us in the San Gabriel Valley rely on. About 80% of the water you depend on comes from this one amazing water supply source, deep down underground — the Main San Gabriel Groundwater Basin. In 1973, we were created by the Los Angeles County Superior Court; our official name is the Main San Gabriel Basin Watermaster.

We are sharing the story of our underground water because all of us in the San Gabriel Valley have a role in its care, including you, your family and friends. Please help us share this story, the story of the waters that connect us.

Learn more about us at www.watermaster.org

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Contact Us

 

​Telephone: 626-815-1300

725 North Azusa Avenue 

Azusa, CA 91702