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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

USGS 381654076394501 SM Dd 51

St. Mary'S County, Maryland
Latitude  38°16'54", Longitude  76°39'45" NAD27
Land-surface elevation 126 feet above NGVD29
The depth of the well is 470 feet below land surface.
The depth of the hole is 470 feet below land surface.
This well is completed in the Northern Atlantic Coastal Plain aquifer system (S100NATLCP) national aquifer.
This well is completed in the Aquia Formation (125AQUI) local aquifer.

Period of record
Begin Date End Date Levels
1978-08-21 1995-05-31 24

 
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