San Joaquin Tributaries Authority

Aerial view of a long, winding lake with a bridge crossing it, surrounded by forested hills and scattered rural homes under a clear sky.

San Joaquin Tributaries Authority

The San Joaquin Tributaries Authority (SJTA) advances collaborative, sustainable water management and flood control while providing dependable water supplies for agriculture, the environment, and the communities we serve.

Commission Members

A grid of nine light green circles outlined in dark green, arranged in three rows and three columns on a white background.

Manage

Our water resources and systems to sustain our communities, economy, and environment now and into the future.

Protect

Natural resources using science-based evidence in our decision-making and actions for effective water management.

Strengthen

The resilience and reliability of the San Joaquin River and its tributaries.

Making a Difference

3.2 Million People

served with drinking water

260,000
Acres

of farmland irrigated

1.7 Million + Acre-Feet

per year of water supply delivered

590 Megawatts

of greenhouse gas-free hydroelectric generation

$1 Trillion

annual in gross domestic product

Water-Wise Evaluation: Inspector checks irrigated landscaping and provides tips for efficient outdoor water use.

Collaborative Projects Making a Measurable Difference

Stories of Stewardship and Shared Success

Our interactive story maps document real outcomes from partnerships across the region. Discover how collaborative water management, ecological restoration, and community engagement initiatives are creating lasting environmental and social impact.

Explore our Stories