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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

USGS 374431121251201 002S005E21Q001M

San Joaquin County, California
Latitude  37°44'31", Longitude 121°25'12" NAD27
Land-surface elevation 47.00 feet above NGVD29
The depth of the well is 800 feet below land surface.
The depth of the hole is 895 feet below land surface.
This well is completed in the Central Valley aquifer system (S100CNRLVL) national aquifer.
This well is completed in the Alluvium Above and Below E-Clay (Miocene-Pleistocene) (112ALABE) local aquifer.

Period of record
Begin Date End Date Levels
1967-05-01 1967-05-01 1

 
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