DWR Updates

High river flows on the San Joaquin River at the San Joaquin River National Wildlife Refuge in Stanislaus County, California. Photo taken June 13, 2023.

California is taking a new, data-driven approach to capturing floodwaters for groundwater recharge. DWR, in coordination with GEI Consultants, has released the Central Valley Flood-MAR Dashboard for public testing, allowing water managers across the San Joaquin and Sacramento Valleys the opportunity to explore the tool and offer feedback.

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A drone view at dusk shows Clifton Court Forebay, which is managed by the California Department of Water Resources, at the southwestern edge of the Sacramento-San Joaquin Delta in Contra Costa County. Photo taken March 3, 2025.

When the first major storms of the season arrive in California, they bring more than just water. Those early storms trigger what is known as “first flush,” a short but important period that plays a big role in the ecology of the Sacramento-San Joaquin Delta, how the State Water Project (SWP) operates, and the actions taken to protect fish in the De ...

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