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Maps

California’s Water Infrastructure

 

Food Grows Where Water Flows

 

An extensive network of canals and waterways sustain production of food and fiber in California. This vital infrastructure has helped to make California the nation’s leading producer of healthy food and sustainable fibers.

Zoom in to view state, federal, and local waterways, or click here to view the map in a larger window.

California’s Lakes and Reservoirs

 

Storage Improves Reliability

 

California’s reservoirs and lakes store water for future use, help protect against flooding, and ensure sustainable food and fiber production. These resources provide the flexibility California needs to ensure our future successes.

Zoom in to view specific locations, click on a circle to view current reservoir levels, or click here to view the map in a larger window.

California’s Groundwater

 

Sustainable Management

 

California’s groundwater aquifers play an important role in providing water for homes, businesses, and farms across the state. Local groundwater management agencies are working to help California meet our water needs for years to come.

Zoom in to view specific agencies and aquifers, or click here to view the map in a larger window.

Latest Blog Posts

Golden Mussels: A Looming Crisis for California’s Farms and Water Supply

The golden mussel, an invasive species from East and Southeast Asia, is spreading rapidly in the Sacramento-San Joaquin Delta since its discovery in October 2024. This tiny invader threatens California’s $50 billion agricultural industry by clogging irrigation systems, which could disrupt water deliveries, reduce farm production, and raise food prices. Efforts are underway to monitor and control its spread to protect our food supply.

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Central Valley Project Water South of Delta Allocation Rises to 55%

This week, the U.S. Bureau of Reclamation announced an increase in the Central Valley Project (CVP) water allocation for south-of-Delta agricultural contractors, raising it from 50% to 55% for the 2025 water year. While this modest increase offers some relief to farmers, farm workers, and rural communities in the San Joaquin Valley, it underscores the ongoing challenges of California’s unreliable water supply system. Insufficient water allocations have far-reaching consequences, not only for agriculture but also for the nation’s food supply.

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