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DESCRIPTION:

Latitude 37°52'28",   Longitude 121°38'20"   NAD27
Contra Costa County, California   , Hydrologic Unit 18040003

Well depth: 185 feet
Hole depth: 190 feet
Land surface altitude: 30.00 feet above NGVD29.
Well completed in "Central Valley aquifer system" (S100CNRLVL) national aquifer.
Well completed in "Alluvial Fan Deposits" (111ALVF) local aquifer

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Field groundwater-level measurements	1972-09-25	2004-03-29	59
Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP)	1974-07-18	1976-06-15	2
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