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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 =
  • 381552076265001
Minimum number of levels = 1
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USGS 381552076265001 SM Df 1

St. Mary'S County, Maryland
Latitude  38°15'53.0", Longitude  76°26'49.7" NAD83
Land-surface elevation 93.35 feet above NGVD29
The depth of the well is 587 feet below land surface.
The depth of the hole is 587 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.
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Table of 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
1943-06-01 D62610 -29.65NGVD291OUSGSSA
1943-06-01 D62611 -30.57NAVD881OUSGSSA
1943-06-01 D72019123.00  1OUSGSSA
1984-09-06 D62610 -73.45NGVD291Z  A
1984-09-06 D62611 -74.37NAVD881Z  A
1984-09-06 D72019166.80  1Z  A
1985-04-03 D62610 -71.65NGVD291Z  A
1985-04-03 D62611 -72.57NAVD881Z  A
1985-04-03 D72019165.00  1Z  A
1985-10-16 D62610 -65.49NGVD291Z  A
1985-10-16 D62611 -66.41NAVD881Z  A
1985-10-16 D72019158.84  1Z  A
1986-04-02 D62610 -66.83NGVD291Z  A
1986-04-02 D62611 -67.75NAVD881Z  A
1986-04-02 D72019160.18  1Z  A
1986-09-11 D62610 -78.34NGVD291Z  A
1986-09-11 D62611 -79.26NAVD881Z  A
1986-09-11 D72019171.69  1Z  A
1988-04-14 D62610 -83.34NGVD291Z  A
1988-04-14 D62611 -84.26NAVD881Z  A
1988-04-14 D72019176.69  1Z  A
1988-09-08 D62610 -93.56NGVD291Z  A
1988-09-08 D62611 -94.48NAVD881Z  A
1988-09-08 D72019186.91  1Z  A
1990-04-19 D62610 -98.12NGVD291Z  A
1990-04-19 D62611 -99.04NAVD881Z  A
1990-04-19 D72019191.47  1Z  A
1990-09-11 D62610 -106.94NGVD291Z  A
1990-09-11 D62611 -107.86NAVD881Z  A
1990-09-11 D72019200.29  1Z  A
1991-09-06 D62610 -107.50NGVD291Z  A
1991-09-06 D62611 -108.42NAVD881Z  A
1991-09-06 D72019200.85  1Z  A
1992-09-02 D62610 -111.59NGVD291Z  A
1992-09-02 D62611 -112.51NAVD881Z  A
1992-09-02 D72019204.94  1Z  A
1993-05-03 D62610 -103.81NGVD291Z  A
1993-05-03 D62611 -104.73NAVD881Z  A
1993-05-03 D72019197.16  1Z  A
1993-09-29 D62610 -113.30NGVD291Z  A
1993-09-29 D62611 -114.22NAVD881Z  A
1993-09-29 D72019206.65  1Z  A
1995-06-01 D62610 -113.04NGVD291Z  A
1995-06-01 D62611 -113.96NAVD881Z  A
1995-06-01 D72019206.39  1Z  A
1997-05-14 D62610 -122.02NGVD291Z  A
1997-05-14 D62611 -122.94NAVD881Z  A
1997-05-14 D72019215.37  1Z  A
1998-02-19 D62610 -126.35NGVD291Z  A
1998-02-19 D62611 -127.27NAVD881Z  A
1998-02-19 D72019219.70  1Z  A
1998-09-02 D62610 -140.93NGVD291Z  A
1998-09-02 D62611 -141.85NAVD881Z  A
1998-09-02 D72019234.28  1Z  A
1999-04-14 D62610 -128.36NGVD291Z  A
1999-04-14 D62611 -129.28NAVD881Z  A
1999-04-14 D72019221.71  1Z  A
1999-09-01 D62610 -147.73NGVD291Z  A
1999-09-01 D62611 -148.65NAVD881Z  A
1999-09-01 D72019241.08  1Z  A
2000-01-12 D62610 -138.45NGVD291Z  A
2000-01-12 D62611 -139.37NAVD881Z  A
2000-01-12 D72019231.80  1Z  A
2000-04-20 D62610 -138.40NGVD291Z  A
2000-04-20 D62611 -139.32NAVD881Z  A
2000-04-20 D72019231.75  1Z  A
2000-07-12 D62610 -143.63NGVD291Z  A
2000-07-12 D62611 -144.55NAVD881Z  A
2000-07-12 D72019236.98  1Z  A
2000-09-15 D62610 -144.75NGVD291Z  A
2000-09-15 D62611 -145.67NAVD881Z  A
2000-09-15 D72019238.10  1Z  A
2001-01-03 D62610 -142.45NGVD291Z  A
2001-01-03 D62611 -143.37NAVD881Z  A
2001-01-03 D72019235.80  1Z  A
2001-04-26 D62610 -141.15NGVD291Z  A
2001-04-26 D62611 -142.07NAVD881Z  A
2001-04-26 D72019234.50  1Z  A
2001-07-12 D62610 -149.13NGVD291Z  A
2001-07-12 D62611 -150.05NAVD881Z  A
2001-07-12 D72019242.48  1Z  A
2002-08-01 D62610 -160.05NGVD291Z  A
2002-08-01 D62611 -160.97NAVD881Z  A
2002-08-01 D72019253.40  1Z  A
2003-01-15 D62610 -147.41NGVD291SUSGSSA
2003-01-15 D62611 -148.33NAVD881SUSGSSA
2003-01-15 D72019240.76  1SUSGSSA
2003-04-2117:30 UTCm62610 -143.91NGVD291SUSGSSA
2003-04-2117:30 UTCm62611 -144.83NAVD881SUSGSSA
2003-04-2117:30 UTCm72019237.26  1SUSGSSA
2003-07-2318:30 UTCm62610 -147.12NGVD291SUSGSSA
2003-07-2318:30 UTCm62611 -148.04NAVD881SUSGSSA
2003-07-2318:30 UTCm72019240.47  1SUSGSSA
2003-10-0217:05 UTCm62610 -144.67NGVD291TUSGSSA
2003-10-0217:05 UTCm62611 -145.59NAVD881TUSGSSA
2003-10-0217:05 UTCm72019238.02  1TUSGSSA
2004-02-24 D62610 -135.83NGVD291SUSGSSA
2004-02-24 D62611 -136.75NAVD881SUSGSSA
2004-02-24 D72019229.18  1SUSGSSA
2006-02-16 D62610 -140.69NGVD291SUSGSSA
2006-02-16 D62611 -141.61NAVD881SUSGSSA
2006-02-16 D72019234.04  1SUSGSSA
2006-04-28 D62610 -144.82NGVD291SUSGSSA
2006-04-28 D62611 -145.74NAVD881SUSGSSA
2006-04-28 D72019238.17  1SUSGSSA
2006-07-07 D62610 -149.75NGVD291SUSGSSA
2006-07-07 D62611 -150.67NAVD881SUSGSSA
2006-07-07 D72019243.10  1SUSGSSA
2006-09-27 D62610 -158.50NGVD291SUSGSSA
2006-09-27 D62611 -159.42NAVD881SUSGSSA
2006-09-27 D72019251.85  1SUSGSSA
2006-12-12 D62610 -144.94NGVD291SUSGSSA
2006-12-12 D62611 -145.86NAVD881SUSGSSA
2006-12-12 D72019238.29  1SUSGSSA
2007-04-18 D62610 -140.52NGVD291SUSGSSA
2007-04-18 D62611 -141.44NAVD881SUSGSSA
2007-04-18 D72019233.87  1SUSGSSA
2007-07-03 D62610 -149.35NGVD291SUSGSSA
2007-07-03 D62611 -150.27NAVD881SUSGSSA
2007-07-03 D72019242.70  1SUSGSSA
2007-09-19 D62610 -152.27NGVD291TUSGSSA
2007-09-19 D62611 -153.19NAVD881TUSGSSA
2007-09-19 D72019245.62  1TUSGSSA
2007-12-18 D62610 -148.11NGVD291SUSGSSA
2007-12-18 D62611 -149.03NAVD881SUSGSSA
2007-12-18 D72019241.46  1SUSGSSA
2008-04-09 D62610 -136.55NGVD291SUSGSSA
2008-04-09 D62611 -137.47NAVD881SUSGSSA
2008-04-09 D72019229.90  1SUSGSSA
2008-07-09 D62610 -141.23NGVD291SUSGSSA
2008-07-09 D62611 -142.15NAVD881SUSGSSA
2008-07-09 D72019234.58  1SUSGSSA
2008-09-18 D62610 -149.65NGVD291SUSGSSA
2008-09-18 D62611 -150.57NAVD881SUSGSSA
2008-09-18 D72019243.00  1SUSGSSA
2009-01-22 D62610 -140.74NGVD291SUSGSSA
2009-01-22 D62611 -141.66NAVD881SUSGSSA
2009-01-22 D72019234.09  1SUSGSSA
2009-07-07 D62610 -145.32NGVD291SUSGSSA
2009-07-07 D62611 -146.24NAVD881SUSGSSA
2009-07-07 D72019238.67  1SUSGSSA
2009-09-23 D62610 -141.92NGVD291SUSGSSA
2009-09-23 D62611 -142.84NAVD881SUSGSSA
2009-09-23 D72019235.27  1SUSGSSA
2009-12-16 D62610 -135.56NGVD291SUSGSSA
2009-12-16 D62611 -136.48NAVD881SUSGSSA
2009-12-16 D72019228.91  1SUSGSSA
2010-07-08 D62610 -156.15NGVD291SUSGSSA
2010-07-08 D62611 -157.07NAVD881SUSGSSA
2010-07-08 D72019249.50  1SUSGSSA
2010-09-1415:02 UTCm62610 -153.25NGVD291SUSGSSA
2010-09-1415:02 UTCm62611 -154.17NAVD881SUSGSSA
2010-09-1415:02 UTCm72019246.60  1SUSGSSA
2011-01-1414:48 UTCm62610 -141.41NGVD291SUSGSSA
2011-01-1414:48 UTCm62611 -142.33NAVD881SUSGSSA
2011-01-1414:48 UTCm72019234.76  1SUSGSSA
2011-07-1915:08 UTCm62610 -151.52NGVD291SUSGSSA
2011-07-1915:08 UTCm62611 -152.44NAVD881SUSGSSA
2011-07-1915:08 UTCm72019244.87  1SUSGSSA
2011-09-2117:02 UTCm62610 -151.48NGVD291SUSGSSA
2011-09-2117:02 UTCm62611 -152.40NAVD881SUSGSSA
2011-09-2117:02 UTCm72019244.83  1SUSGSSA
2012-01-0613:39 UTCm62610 -139.71NGVD291SUSGSSA
2012-01-0613:39 UTCm62611 -140.63NAVD881SUSGSSA
2012-01-0613:39 UTCm72019233.06  1SUSGSSA
2012-04-2513:33 UTCm62610 -140.98NGVD291SUSGSSA
2012-04-2513:33 UTCm62611 -141.90NAVD881SUSGSSA
2012-04-2513:33 UTCm72019234.33  1SUSGSSA
2012-09-1216:57 UTCm62610 -149.05NGVD291SUSGSSA
2012-09-1216:57 UTCm62611 -149.97NAVD881SUSGSSA
2012-09-1216:57 UTCm72019242.40  1SUSGSSA
2013-04-1714:45 UTCm62610 -139.02NGVD291SUSGSSA
2013-04-1714:45 UTCm62611 -139.94NAVD881SUSGSSA
2013-04-1714:45 UTCm72019232.37  1SUSGSSA
2013-07-1617:08 UTCm62610 -144.83NGVD291TUSGSSA
2013-07-1617:08 UTCm62611 -145.75NAVD881TUSGSSA
2013-07-1617:08 UTCm72019238.18  1TUSGSSA
2013-09-0619:37 UTCm62610 -152.16NGVD291TUSGSSA
2013-09-0619:37 UTCm62611 -153.08NAVD881TUSGSSA
2013-09-0619:37 UTCm72019245.51  1TUSGSSA
2014-09-0315:25 UTCm62610 -153.98NGVD291TUSGSSA
2014-09-0315:25 UTCm62611 -154.90NAVD881TUSGSSA
2014-09-0315:25 UTCm72019247.33  1TUSGSSA
2015-09-1017:48 UTCm62610 -153.50NGVD291TUSGSSA
2015-09-1017:48 UTCm62611 -154.42NAVD881TUSGSSA
2015-09-1017:48 UTCm72019246.85  1TUSGSSA
2017-10-0517:06 UTCm62610 -151.69NGVD291SUSGSSA
2017-10-0517:06 UTCm62611 -152.61NAVD881SUSGSSA
2017-10-0517:06 UTCm72019245.04  1SUSGSSA
2018-09-2616:32 UTCm62610 -147.95NGVD291SUSGSSA
2018-09-2616:32 UTCm62611 -148.87NAVD881SUSGSSA
2018-09-2616:32 UTCm72019241.30  1SUSGSSA
2019-09-1815:34 UTCm62610 -153.39NGVD291SUSGSSA
2019-09-1815:34 UTCm62611 -154.31NAVD881SUSGSSA
2019-09-1815:34 UTCm72019246.74  1SUSGSSA
2020-09-1117:22 UTCm62610 -145.83NGVD291SUSGSSA
2020-09-1117:22 UTCm62611 -146.75NAVD881SUSGSSA
2020-09-1117:22 UTCm72019239.18  1SUSGSSA
2021-09-0814:58 UTCm62610 -143.44NGVD291SUSGSSA
2021-09-0814:58 UTCm62611 -144.36NAVD881SUSGSSA
2021-09-0814:58 UTCm72019236.79  1SUSGSSA
2022-09-0713:56 UTCm62610 -143.19NGVD291SUSGSSA
2022-09-0713:56 UTCm62611 -144.11NAVD881SUSGSSA
2022-09-0713:56 UTCm72019236.54  1SUSGSSA

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 measurementOObserved.
Method of measurementSSteel-tape measurement.
Method of measurementTElectric-tape measurement.
Method of measurementZOther.
Measuring agencyNot determined
Measuring agencyUSGSU.S. Geological Survey
Source of measurementNot determined
Source of measurementSMeasured by personnel of reporting agency.
Water-level approval statusAApproved for publication -- Processing and review completed.