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DESCRIPTION:

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

Contra Costa County, California, Hydrologic Unit 18040003

Datum of gage: 0 feet above   NAVD88.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	1996-02-11	2017-08-19
Daily Data
Discharge, tidally filtered, cubic feet per second	1996-02-11	2017-08-16	7027
Daily Statistics
Discharge, tidally filtered, cubic feet per second	1996-02-11	2015-09-29	6408
Monthly Statistics
Discharge, tidally filtered, cubic feet per second	1996-02	2015-09
Annual Statistics
Discharge, tidally filtered, cubic feet per second	1996	2015
Field measurements	1996-04-22	2017-05-22	1241
Field/Lab water-quality samples	2010-09-17	2015-05-19	30
Water-Year Summary	2014	2014	1
Additional Data Sources	Begin Date	End Date	Count
Instantaneous-Data Archive  **offsite**	1996-02-09	2005-09-30	325433

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