USGS Surface Water for USA: Streamflow Measurements

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Streamflow Measurements for the Nation

Contra Costa County, California

Hydrologic Unit Code 18040003

Latitude 38°00'49", Longitude 121°40'00" NAD27

Gage datum 0 feet above NAVD88

**Period of record**
Begin Date	End Date	Count
1996-04-22	2024-10-01	1539

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

Page Contact Information: California Water Data Support Team
Page Last Modified: 2024-11-27 19:34:40 EST
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