About Us

The San Joaquin Tributaries is a Joint Powers Authority formed in 2012 around a common purpose to ensure long-term water supply reliability to its customers and community, to collaborate on scientific research to maintain the health of the ecosystems on the tributaries, to operate its systems efficiently and cost-effectively and to promote protection of its members’ historic water rights.

Don Pedro Powerhouse

For decades, the communities in Alameda, Merced, San Francisco, San Joaquin, San Mateo, Santa Clara, Stanislaus, and Tuolumne Counties, which comprise a significant portion of Northern California, have benefitted from the stability, resilience, and quality of the resources managed by SJTA members.

The residential, business and agricultural customers we serve have invested billions of dollars in the efficient, sustainable operations and infrastructure of our systems, including investing in scientific research and adaptive management to effectively protect the ecosystems within the Tuolumne and Stanislaus River watersheds.