California Water Science Center

Water Quality

Statewide Water Quality Programs

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The Bay-Delta

Data for better understanding the heart of California's watershed

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Hydrologic Extremes

Information on flood and drought conditions - in emergencies and to better understand long-term changes

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Organic Matter Research Lab

Providing services and support for regional and national projects

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Science

The U.S. Geological Survey California Water Science Center provides foundational data and scientific analysis to address water issues facing California. Explore your science through the themes and topics listed below.

Themes

Science Topics

Aquatic Ecology

Aquifer Storage and Recovery

Bay-Delta

Central Valley

Climate Change

Contaminants

Drinking-Water

Drought

Floods

Groundwater Ambient Monitoring and Assessment (GAMA)

Groundwater Quality

Groundwater Supply

Hydrologic Modeling

Land Subsidence

National Water-Quality Assessment (NAWQA)

Oil, Gas, and Groundwater

Remote Sensing

Restoration

Seawater Intrusion

Sediment Transport

Streamflow

Surface Water Quality

Surface Water Supply

Sustainable Groundwater Management Act (SGMA)

Water Quality Model

Water Quality Monitoring

Water Use

Watersheds

Wildfires and Water Quality