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DESCRIPTION:

Latitude 38°03'08",   Longitude 121°41'16"   NAD27

Contra Costa County, California, Hydrologic Unit 18020109

Datum of gage: 0 feet above   NAVD88.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	1994-05-11	2017-08-22
Daily Data
Discharge, tidally filtered, cubic feet per second	1994-05-14	2017-08-19	5269
Daily Statistics
Discharge, tidally filtered, cubic feet per second	1994-05-14	2014-09-29	4254
Monthly Statistics
Discharge, tidally filtered, cubic feet per second	1994-05	2014-09
Annual Statistics
Discharge, tidally filtered, cubic feet per second	1994	2014
Field measurements	1995-01-19	2017-05-22	1559
Field/Lab water-quality samples	2010-09-17	2017-07-20	151
Additional Data Sources	Begin Date	End Date	Count
Instantaneous-Data Archive  **offsite**	1994-05-11	2005-09-30	351216

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