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Groundwater levels for the Nation

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Agency code = usgs
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  • 381908076331701
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USGS 381908076331701 SM De 41

St. Mary'S County, Maryland
Latitude  38°19'11.0", Longitude  76°33'09.3" NAD83
Land-surface elevation 116.60 feet above NGVD29
The depth of the well is 445 feet below land surface.
The depth of the hole is 445 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 Piney Point Formation (124PNPN) local aquifer.
Output formats
Table of data
Tab-separated data
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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
1978-06-27 D62610 -22.40NGVD291SUSGSSA
1978-06-27 D62611 -23.68NAVD881SUSGSSA
1978-06-27 D72019139.00  1SUSGSSA
1982-09-16 D62610 -26.05NGVD291Z  A
1982-09-16 D62611 -27.33NAVD881Z  A
1982-09-16 D72019142.65  1Z  A
1982-09-21 D62610 -26.20NGVD291Z  A
1982-09-21 D62611 -27.48NAVD881Z  A
1982-09-21 D72019142.80  1Z  A
1983-04-07 D62610 -24.22NGVD291Z  A
1983-04-07 D62611 -25.50NAVD881Z  A
1983-04-07 D72019140.82  1Z  A
1983-09-14 D62610 -27.37NGVD291Z  A
1983-09-14 D62611 -28.65NAVD881Z  A
1983-09-14 D72019143.97  1Z  A
1984-04-10 D62610 -25.43NGVD291Z  A
1984-04-10 D62611 -26.71NAVD881Z  A
1984-04-10 D72019142.03  1Z  A
1984-09-13 D62610 -27.04NGVD291Z  A
1984-09-13 D62611 -28.32NAVD881Z  A
1984-09-13 D72019143.64  1Z  A
1985-04-02 D62610 -26.55NGVD291Z  A
1985-04-02 D62611 -27.83NAVD881Z  A
1985-04-02 D72019143.15  1Z  A
1985-09-12 D62610 -29.76NGVD291Z  A
1985-09-12 D62611 -31.04NAVD881Z  A
1985-09-12 D72019146.36  1Z  A
1990-04-18 D62610 -31.03NGVD291Z  A
1990-04-18 D62611 -32.31NAVD881Z  A
1990-04-18 D72019147.63  1Z  A
1991-09-06 D62610 -34.15NGVD291Z  A
1991-09-06 D62611 -35.43NAVD881Z  A
1991-09-06 D72019150.75  1Z  A
1992-04-07 D62610 -33.54NGVD291Z  A
1992-04-07 D62611 -34.82NAVD881Z  A
1992-04-07 D72019150.14  1Z  A
1994-09-08 D62610 -36.70NGVD291Z  A
1994-09-08 D62611 -37.98NAVD881Z  A
1994-09-08 D72019153.30  1Z  A
1995-06-01 D62610 -35.70NGVD291S  A
1995-06-01 D62611 -36.98NAVD881S  A
1995-06-01 D72019152.30  1S  A
1995-09-26 D62610 -38.30NGVD291Z  A
1995-09-26 D62611 -39.58NAVD881Z  A
1995-09-26 D72019154.90  1Z  A
1996-04-25 D62610 -35.07NGVD291Z  A
1996-04-25 D62611 -36.35NAVD881Z  A
1996-04-25 D72019151.67  1Z  A
1997-09-18 D62610 -35.84NGVD291Z  A
1997-09-18 D62611 -37.12NAVD881Z  A
1997-09-18 D72019152.44  1Z  A
1998-05-05 D62610 -33.02NGVD291Z  A
1998-05-05 D62611 -34.30NAVD881Z  A
1998-05-05 D72019149.62  1Z  A
1998-09-23 D62610 -37.15NGVD291Z  A
1998-09-23 D62611 -38.43NAVD881Z  A
1998-09-23 D72019153.75  1Z  A
1999-04-15 D62610 -35.00NGVD291Z  A
1999-04-15 D62611 -36.28NAVD881Z  A
1999-04-15 D72019151.60  1Z  A
1999-09-01 D62610 -39.03NGVD291Z  A
1999-09-01 D62611 -40.31NAVD881Z  A
1999-09-01 D72019155.63  1Z  A
2008-05-0115:10 UTCm62610 -37.19NGVD291SMD006AA
2008-05-0115:10 UTCm62611 -38.47NAVD881SMD006AA
2008-05-0115:10 UTCm72019153.79  1SMD006AA
2008-09-2215:40 UTCm62610 -38.51NGVD291SMD006AA
2008-09-2215:40 UTCm62611 -39.79NAVD881SMD006AA
2008-09-2215:40 UTCm72019155.11  1SMD006AA
2009-09-2115:40 UTCm62610 -26.15NGVD291TMD006AA
2009-09-2115:40 UTCm62611 -27.43NAVD881TMD006AA
2009-09-2115:40 UTCm72019142.75  1TMD006AA
2010-04-2721:00 UTCm62610 -28.87NGVD291TMD006AA
2010-04-2721:00 UTCm62611 -30.15NAVD881TMD006AA
2010-04-2721:00 UTCm72019145.47  1TMD006AA
2012-04-1614:16 UTCm62610 44.07NGVD291TMD006AA
2012-04-1614:16 UTCm62611 42.79NAVD881TMD006AA
2012-04-1614:16 UTCm7201972.53  1TMD006AA
2012-09-2418:33 UTCm62610 39.16NGVD291TMD006AA
2012-09-2418:33 UTCm62611 37.88NAVD881TMD006AA
2012-09-2418:33 UTCm7201977.44  1TMD006AA
2013-04-1118:14 UTCm62610 46.69NGVD291TMD006AA
2013-04-1118:14 UTCm62611 45.41NAVD881TMD006AA
2013-04-1118:14 UTCm7201969.91  1TMD006AA

Explanation
SectionCodeDescription
Water-level date-time accuracyDDate is accurate to the Day
Water-level date-time accuracymDate is accurate to the Minute
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 measurementSSteel-tape measurement.
Method of measurementTElectric-tape measurement.
Method of measurementZOther.
Measuring agencyNot determined
Measuring agencyMD006Maryland Geological Survey
Measuring agencyUSGSU.S. Geological Survey
Source of measurementNot determined
Source of measurementAReported by another government agency (do not use "A" if reported by owner, use "O").
Source of measurementSMeasured by personnel of reporting agency.
Water-level approval statusAApproved for publication -- Processing and review completed.