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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

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Agency code = usgs
site_no list =
  • 380016121454501
Minimum number of levels = 1
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USGS 380016121454501 002N002E21L001M

Contra Costa County, California
Hydrologic Unit Code 18040003
Latitude  38°00'16", Longitude 121°45'45" NAD27
Land-surface elevation 50.00 feet above NGVD29
The depth of the well is 140 feet below land surface.
The depth of the hole is 140 feet below land surface.
This well is completed in the Central Valley aquifer system (S100CNRLVL) national aquifer.
This well is completed in the Quaternary Alluvium (110ALVM) local aquifer.
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Graph of groundwater level data at USGS 380016121454501 002N002E21L001M
Breaks in the plot represent a gap of at least one year between field measurements.
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