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An aerial view shows high water conditions at Oroville Dam located at Lake Oroville in Butte County, California. Photo taken May 20, 2025.

While California’s climate has always swung between dry and wet conditions, the past five years have proven what climate science has predicted: California must be prepared for extreme weather events of all kinds, even simultaneous drought and flood conditions.

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The invasive golden mussel recently detected in lakes and reservoirs in California. Photo from the Department of Water Resources.

The Department of Water Resources (DWR), California Department of Fish and Wildlife (CDFW), and California State Parks have confirmed presence of the invasive golden mussel at Pyramid Lake in Los Angeles County and Silverwood Lake in San Bernardino County.

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State Water Project Adaptation Strategy report cover.

A new report released today by the Department of Water Resources (DWR) examines how a combination of strategies, most importantly the Delta Conveyance Project, can help the State Water Project (SWP) maintain reliable water deliveries to 27 million Californians despite hotter temperatures, more extreme storms, more severe droughts, and higher sea le ...

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For almost a century, parts of California have been gradually sinking, impacting critical infrastructure and the communities who rely on it. Recognizing this challenge, the Department of Water Resources has released a draft Best Management Practices document for public comment that will help local water agencies address this growing concern and sup ...

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