California Water Reservoirs

California Department of Water Resources daily summary for major reservoirs.

The map above shows the daily status of major reservoirs across the state of California. You can find a clickable map for more information (updated daily) at

Please note that some of these reservoirs (e.g., Shasta or Oroville) are much larger than others (e.g., Castaic, Perris, or even Oroville) in terms of their total capacity. Shasta is the largest in the state, with a capacity to store up to 4,552 thousand acre-feet (TAF) of water. The low levels at reservoirs across the state, as compared with their historic average levels for this time of year, indicates some of the severity of our drought.

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