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Groundwater levels for the Nation

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Agency code = usgs
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  • 381724076254001
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USGS 381724076254001 SM Df 12

St. Mary'S County, Maryland
Latitude  38°17'24", Longitude  76°25'40" NAD27
Land-surface elevation 11 feet above NGVD29
The depth of the well is 489 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 or Aquifer (125AQUI) local aquifer.
Output formats
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Reselect period
Date Time
?
 
Water-level
date-time
accuracy
?
 
Parameter
code 		Water
level,
feet
below
land
surface		 Water
level,
feet
above
specific
vertical
datum		 Referenced
vertical
datum
?
 
Status
?
 
Method of
measurement
?
 
Measuring
agency
?
 
Source of
measurement
?
 
Water-level
approval
status
1944-04-01 D62610 -50.00NGVD291L  A
1944-04-01 D62611 -50.84NAVD881L  A
1944-04-01 D7201961.00  1L  A
1984-09-21 D62610 -35.33NGVD291Z  A
1984-09-21 D62611 -36.17NAVD881Z  A
1984-09-21 D7201946.33  1Z  A
1985-04-04 D62610 -35.45NGVD291Z  A
1985-04-04 D62611 -36.29NAVD881Z  A
1985-04-04 D7201946.45  1Z  A
1985-10-16 D62610 -36.67NGVD291Z  A
1985-10-16 D62611 -37.51NAVD881Z  A
1985-10-16 D7201947.67  1Z  A
1986-04-10 D62610 -40.78NGVD291Z  A
1986-04-10 D62611 -41.62NAVD881Z  A
1986-04-10 D7201951.78  1Z  A
1987-04-22 D62610 -38.52NGVD291Z  A
1987-04-22 D62611 -39.36NAVD881Z  A
1987-04-22 D7201949.52  1Z  A
1988-09-20 D62610 -38.46NGVD291Z  A
1988-09-20 D62611 -39.30NAVD881Z  A
1988-09-20 D7201949.46  1Z  A
1989-04-11 D62610 -34.81NGVD291Z  A
1989-04-11 D62611 -35.65NAVD881Z  A
1989-04-11 D7201945.81  1Z  A
1990-04-19 D62610 -35.25NGVD291Z  A
1990-04-19 D62611 -36.09NAVD881Z  A
1990-04-19 D7201946.25  1Z  A
1990-09-11 D62610 -34.70NGVD291Z  A
1990-09-11 D62611 -35.54NAVD881Z  A
1990-09-11 D7201945.70  1Z  A
1991-04-10 D62610 -31.97NGVD291Z  A
1991-04-10 D62611 -32.81NAVD881Z  A
1991-04-10 D7201942.97  1Z  A
1991-09-06 D62610 -37.17NGVD291Z  A
1991-09-06 D62611 -38.01NAVD881Z  A
1991-09-06 D7201948.17  1Z  A
1992-04-08 D62610 -38.01NGVD291Z  A
1992-04-08 D62611 -38.85NAVD881Z  A
1992-04-08 D7201949.01  1Z  A
1992-09-02 D62610 -34.89NGVD291Z  A
1992-09-02 D62611 -35.73NAVD881Z  A
1992-09-02 D7201945.89  1Z  A
1993-05-03 D62610 -33.62NGVD291Z  A
1993-05-03 D62611 -34.46NAVD881Z  A
1993-05-03 D7201944.62  1Z  A
1993-09-29 D62610 -38.40NGVD291Z  A
1993-09-29 D62611 -39.24NAVD881Z  A
1993-09-29 D7201949.40  1Z  A
1994-05-03 D62610 -38.76NGVD291Z  A
1994-05-03 D62611 -39.60NAVD881Z  A
1994-05-03 D7201949.76  1Z  A

Explanation
SectionCodeDescription
Water-level date-time accuracyDDate is accurate to the Day
Parameter code62610Groundwater level above NGVD 1929, feet
Parameter code62611Groundwater level above NAVD 1988, feet
Parameter code72019Depth to water level, feet below land surface
Referenced vertical datumNAVD88North American Vertical Datum of 1988
Referenced vertical datumNGVD29National Geodetic Vertical Datum of 1929
Status1Static
Method of measurementLInterpreted from geophysical logs.
Method of measurementZOther.
Measuring agencyNot determined
Source of measurementNot determined
Water-level approval statusAApproved for publication -- Processing and review completed.