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DESCRIPTION:

Latitude 38°00'48",   Longitude 121°46'09"   NAD27
Contra Costa County, California   , Hydrologic Unit 18040003

Well depth: 67.0 feet
Hole depth: 67.0 feet
Land surface altitude: 30.00 feet above NGVD29.
Well completed in "Central Valley aquifer system" (S100CNRLVL) national aquifer.
Well completed in "Quaternary Alluvium" (110ALVM) local aquifer

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Field groundwater-level measurements	1972-07-20	1982-09-24	28
Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP)	1972-09-20	1979-04-17	17
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