California Water Science Center

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California Water Data

Photo of USGS EmployeesThis page is a portal to all kinds of information on the current and past state of water resources, both in California and around the country. Get real-time information on California water resources via a searchable Google map interface:

Real Time Stream Flow ConditionsReal Time Streamflow Conditions:
Real-time streamflow data from automated equipment, representing the most current hydrologic conditions.

Current Hydrologic Water Quality ConditionsWater Quality:
Data from automated field equipment representing the most current hydrologic water quality conditions.

Real Time Water DataUSGS Data Mapper
Shows real time current California conditions including surface-water, groundwater, spring sites, atmospheric sites and more.

National Water Data

National Water Data Mapper

National Water Watch

Information on water resources around the country, including Frequently Asked Questions.

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Page Last Modified: Wednesday, 02-Apr-2014 15:13:29 EDT