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DESCRIPTION:

Latitude 38°02'16",   Longitude 121°57'38"   NAD27
Contra Costa County, California   , Hydrologic Unit 18050001

Well depth: 80.0 feet
Hole depth: 85.0 feet
Land surface altitude: 21.00 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	1969-01-01	1969-01-01	1
Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP)	1972-06-20	1982-09-23	29
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