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DESCRIPTION:

Latitude 37°57'37",   Longitude 121°36'15"   NAD83

Contra Costa County, California, Hydrologic Unit 18040003

Datum of gage: 0 feet above   NGVD29.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Field/Lab water-quality samples	1994-06-22	1996-06-26	6
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