USGS Surface Water for USA: Streamflow Measurements

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Explore the NEW USGS National Water Dashboard interactive map to access real-time water data from over 13,500 stations nationwide.

Streamflow Measurements for the Nation

374120122041501 CASTRO VALLEY C A WATSON ST A CASTRO VALLEY CA

Alameda County, California

Hydrologic Unit Code 18050004

Latitude 37°41'20", Longitude 122°04'15" NAD27

Gage datum 160 feet above NGVD29

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U.S. Department of the Interior | U.S. Geological Survey
Title: Surface Water for USA: Streamflow Measurements
URL: https://waterdata.usgs.gov/nwis/measurements?

Page Contact Information: California Water Data Support Team
Page Last Modified: 2025-11-17 14:00:20 EST
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