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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

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  • 381648076421801
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USGS 381648076421801 SM Dc 42

St. Mary'S County, Maryland
Latitude  38°16'48", Longitude  76°42'18" NAD27
Land-surface elevation 13.50 feet above NGVD29
The depth of the well is 336 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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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
1967-04-15 D62610 -5.80NGVD291SUSGSSA
1967-04-15 D62611 -6.65NAVD881SUSGSSA
1967-04-15 D7201919.30  1SUSGSSA
1983-09-15 D62610 -23.46NGVD291Z  A
1983-09-15 D62611 -24.31NAVD881Z  A
1983-09-15 D7201936.96  1Z  A
1984-04-11 D62610 -18.62NGVD291Z  A
1984-04-11 D62611 -19.47NAVD881Z  A
1984-04-11 D7201932.12  1Z  A
1984-09-13 D62610 -22.45NGVD291Z  A
1984-09-13 D62611 -23.30NAVD881Z  A
1984-09-13 D7201935.95  1Z  A
1985-04-03 D62610 -21.66NGVD291Z  A
1985-04-03 D62611 -22.51NAVD881Z  A
1985-04-03 D7201935.16  1Z  A
1985-09-12 D62610 -23.95NGVD291Z  A
1985-09-12 D62611 -24.80NAVD881Z  A
1985-09-12 D7201937.45  1Z  A
1986-04-03 D62610 -23.90NGVD291Z  A
1986-04-03 D62611 -24.75NAVD881Z  A
1986-04-03 D7201937.40  1Z  A
1986-09-12 D62610 -25.02NGVD291Z  A
1986-09-12 D62611 -25.87NAVD881Z  A
1986-09-12 D7201938.52  1Z  A
1987-04-21 D62610 -23.82NGVD291Z  A
1987-04-21 D62611 -24.67NAVD881Z  A
1987-04-21 D7201937.32  1Z  A
1987-09-25 D62610 -27.11NGVD291Z  A
1987-09-25 D62611 -27.96NAVD881Z  A
1987-09-25 D7201940.61  1Z  A
1988-04-22 D62610 -28.94NGVD291Z  A
1988-04-22 D62611 -29.79NAVD881Z  A
1988-04-22 D7201942.44  1Z  A
1988-09-21 D62610 -30.96NGVD291Z  A
1988-09-21 D62611 -31.81NAVD881Z  A
1988-09-21 D7201944.46  1Z  A
1989-04-12 D62610 -28.03NGVD291Z  A
1989-04-12 D62611 -28.88NAVD881Z  A
1989-04-12 D7201941.53  1Z  A
1989-09-14 D62610 -32.67NGVD291Z  A
1989-09-14 D62611 -33.52NAVD881Z  A
1989-09-14 D7201946.17  1Z  A
1990-04-18 D62610 -31.22NGVD291Z  A
1990-04-18 D62611 -32.07NAVD881Z  A
1990-04-18 D7201944.72  1Z  A
1990-09-11 D62610 -34.00NGVD291Z  A
1990-09-11 D62611 -34.85NAVD881Z  A
1990-09-11 D7201947.50  1Z  A
1991-04-11 D62610 -32.47NGVD291Z  A
1991-04-11 D62611 -33.32NAVD881Z  A
1991-04-11 D7201945.97  1Z  A
1992-04-07 D62610 -34.35NGVD291Z  A
1992-04-07 D62611 -35.20NAVD881Z  A
1992-04-07 D7201947.85  1Z  A
1992-09-17 D62610 -37.50NGVD291Z  A
1992-09-17 D62611 -38.35NAVD881Z  A
1992-09-17 D7201951.00  1Z  A
1993-05-03 D62610 -37.17NGVD29PZ  A
1993-05-03 D62611 -38.02NAVD88PZ  A
1993-05-03 D7201950.67  PZ  A
1993-09-30 D62610 -41.19NGVD291Z  A
1993-09-30 D62611 -42.04NAVD881Z  A
1993-09-30 D7201954.69  1Z  A
1994-05-03 D62610 -38.74NGVD291Z  A
1994-05-03 D62611 -39.59NAVD881Z  A
1994-05-03 D7201952.24  1Z  A
1994-09-08 D62610 -43.06NGVD291Z  A
1994-09-08 D62611 -43.91NAVD881Z  A
1994-09-08 D7201956.56  1Z  A
1995-05-31 D62610 -45.07NGVD291Z  A
1995-05-31 D62611 -45.92NAVD881Z  A
1995-05-31 D7201958.57  1Z  A
1995-09-26 D62610 -45.97NGVD291Z  A
1995-09-26 D62611 -46.82NAVD881Z  A
1995-09-26 D7201959.47  1Z  A
1996-04-25 D62610 -43.33NGVD291Z  A
1996-04-25 D62611 -44.18NAVD881Z  A
1996-04-25 D7201956.83  1Z  A
1996-09-24 D62610 -44.81NGVD291Z  A
1996-09-24 D62611 -45.66NAVD881Z  A
1996-09-24 D7201958.31  1Z  A
1996-09-25 D62610 -45.61NGVD291Z  A
1996-09-25 D62611 -46.46NAVD881Z  A
1996-09-25 D7201959.11  1Z  A
1997-04-15 D62610 -46.20NGVD291Z  A
1997-04-15 D62611 -47.05NAVD881Z  A
1997-04-15 D7201959.70  1Z  A
1997-09-17 D62610 -49.65NGVD291Z  A
1997-09-17 D62611 -50.50NAVD881Z  A
1997-09-17 D7201963.15  1Z  A
1998-05-05 D62610 -49.71NGVD291Z  A
1998-05-05 D62611 -50.56NAVD881Z  A
1998-05-05 D7201963.21  1Z  A
1998-10-02 D62610 -55.84NGVD291Z  A
1998-10-02 D62611 -56.69NAVD881Z  A
1998-10-02 D7201969.34  1Z  A
1999-04-15 D62610 -51.21NGVD291Z  A
1999-04-15 D62611 -52.06NAVD881Z  A
1999-04-15 D7201964.71  1Z  A
1999-08-30 D62610 -59.04NGVD291Z  A
1999-08-30 D62611 -59.89NAVD881Z  A
1999-08-30 D7201972.54  1Z  A
2000-04-19 D62610 -54.95NGVD291Z  A
2000-04-19 D62611 -55.80NAVD881Z  A
2000-04-19 D7201968.45  1Z  A
2000-09-13 D62610 -55.33NGVD291Z  A
2000-09-13 D62611 -56.18NAVD881Z  A
2000-09-13 D7201968.83  1Z  A
2001-09-12 D62610 -59.48NGVD291Z  A
2001-09-12 D62611 -60.33NAVD881Z  A
2001-09-12 D7201972.98  1Z  A
2002-09-17 D62610 -62.96NGVD291TUSGSSA
2002-09-17 D62611 -63.81NAVD881TUSGSSA
2002-09-17 D7201976.46  1TUSGSSA
2003-09-11 D62610 -65.03NGVD291TUSGSSA
2003-09-11 D62611 -65.88NAVD881TUSGSSA
2003-09-11 D7201978.53  1TUSGSSA
2004-05-06 D62610 -61.04NGVD291SUSGSSA
2004-05-06 D62611 -61.89NAVD881SUSGSSA
2004-05-06 D7201974.54  1SUSGSSA
2004-09-30 D62610 -61.74NGVD291TUSGSSA
2004-09-30 D62611 -62.59NAVD881TUSGSSA
2004-09-30 D7201975.24  1TUSGSSA
2005-09-22 D62610 -67.40NGVD291SUSGSSA
2005-09-22 D62611 -68.25NAVD881SUSGSSA
2005-09-22 D7201980.90  1SUSGSSA
2005-10-05 D62610 -67.50NGVD291TUSGSSA
2005-10-05 D62611 -68.35NAVD881TUSGSSA
2005-10-05 D7201981.00  1TUSGSSA
2006-10-05 D62610 -67.25NGVD291TUSGSSA
2006-10-05 D62611 -68.10NAVD881TUSGSSA
2006-10-05 D7201980.75  1TUSGSSA
2007-09-18 D62610 -71.25NGVD291TUSGSSA
2007-09-18 D62611 -72.10NAVD881TUSGSSA
2007-09-18 D7201984.75  1TUSGSSA
2008-09-1118:45 UTCm62610 -65.95NGVD291TUSGSSA
2008-09-1118:45 UTCm62611 -66.80NAVD881TUSGSSA
2008-09-1118:45 UTCm7201979.45  1TUSGSSA
2009-09-22 D62610 -65.85NGVD291TUSGSSA
2009-09-22 D62611 -66.70NAVD881TUSGSSA
2009-09-22 D7201979.35  1TUSGSSA
2010-09-22 D62610 -64.80NGVD291TUSGSSA
2010-09-22 D62611 -65.65NAVD881TUSGSSA
2010-09-22 D7201978.30  1TUSGSSA
2011-09-3018:39 UTCm62610 -62.30NGVD291TUSGSSA
2011-09-3018:39 UTCm62611 -63.15NAVD881TUSGSSA
2011-09-3018:39 UTCm7201975.80  1TUSGSSA
2012-04-2715:02 UTCm62610 -62.84NGVD291TUSGSSA
2012-04-2715:02 UTCm62611 -63.69NAVD881TUSGSSA
2012-04-2715:02 UTCm7201976.34  1TUSGSSA
2012-09-1219:34 UTCm62610 -66.94NGVD291TUSGSSA
2012-09-1219:34 UTCm62611 -67.79NAVD881TUSGSSA
2012-09-1219:34 UTCm7201980.44  1TUSGSSA
2013-09-1719:39 UTCm62610 -65.26NGVD291TUSGSSA
2013-09-1719:39 UTCm62611 -66.11NAVD881TUSGSSA
2013-09-1719:39 UTCm7201978.76  1TUSGSSA
2014-09-0217:41 UTCm62610 -65.20NGVD291TUSGSSA
2014-09-0217:41 UTCm62611 -66.05NAVD881TUSGSSA
2014-09-0217:41 UTCm7201978.70  1TUSGSSA
2015-09-1422:34 UTCm62610 -66.11NGVD291TUSGSSA
2015-09-1422:34 UTCm62611 -66.96NAVD881TUSGSSA
2015-09-1422:34 UTCm7201979.61  1TUSGSSA
2016-09-2120:09 UTCm62610 -67.90NGVD291TUSGSSA
2016-09-2120:09 UTCm62611 -68.75NAVD881TUSGSSA
2016-09-2120:09 UTCm7201981.40  1TUSGSSA
2017-09-2020:35 UTCm62610 -66.48NGVD291TUSGSSA
2017-09-2020:35 UTCm62611 -67.33NAVD881TUSGSSA
2017-09-2020:35 UTCm7201979.98  1TUSGSSA
2018-10-0317:29 UTCm62610 -66.85NGVD291TMD006AA
2018-10-0317:29 UTCm62611 -67.70NAVD881TMD006AA
2018-10-0317:29 UTCm7201980.35  1TMD006AA
2019-04-2315:28 UTCm62610 -64.74NGVD291VMD006AA
2019-04-2315:28 UTCm62611 -65.59NAVD881VMD006AA
2019-04-2315:28 UTCm7201978.24  1VMD006AA
2019-09-2515:55 UTCm62610 -69.36NGVD291VMD006AA
2019-09-2515:55 UTCm62611 -70.21NAVD881VMD006AA
2019-09-2515:55 UTCm7201982.86  1VMD006AA
2020-05-2715:17 UTCm62610 -66.52NGVD291VMD006AA
2020-05-2715:17 UTCm62611 -67.37NAVD881VMD006AA
2020-05-2715:17 UTCm7201980.02  1VMD006AA
2020-09-1714:48 UTCm62610 -67.57NGVD291VMD006AA
2020-09-1714:48 UTCm62611 -68.42NAVD881VMD006AA
2020-09-1714:48 UTCm7201981.07  1VMD006AA
2021-04-2615:25 UTCm62610 -66.14NGVD291VMD006AA
2021-04-2615:25 UTCm62611 -66.99NAVD881VMD006AA
2021-04-2615:25 UTCm7201979.64  1VMD006AA
2021-09-1415:43 UTCm62610 -69.04NGVD291VMD006AA
2021-09-1415:43 UTCm62611 -69.89NAVD881VMD006AA
2021-09-1415:43 UTCm7201982.54  1VMD006AA
2022-04-2715:20 UTCm62610 -66.46NGVD291VMD006AA
2022-04-2715:20 UTCm62611 -67.31NAVD881VMD006AA
2022-04-2715:20 UTCm7201979.96  1VMD006AA
2022-09-2015:40 UTCm62610 -68.52NGVD291VMD006AA
2022-09-2015:40 UTCm62611 -69.37NAVD881VMD006AA
2022-09-2015:40 UTCm7201982.02  1VMD006AA
2023-04-1213:55 UTCm62610 -66.72NGVD291VMD006AA
2023-04-1213:55 UTCm62611 -67.57NAVD881VMD006AA
2023-04-1213:55 UTCm7201980.22  1VMD006AA
2023-09-1214:00 UTCm62610 -70.48NGVD291VMD006AA
2023-09-1214:00 UTCm62611 -71.33NAVD881VMD006AA
2023-09-1214:00 UTCm7201983.98  1VMD006AA
2024-04-1713:35 UTCm62610 -67.01NGVD291VMD006AP
2024-04-1713:35 UTCm62611 -67.86NAVD881VMD006AP
2024-04-1713:35 UTCm7201980.51  1VMD006AP
2024-09-2513:59 UTCm62610 -70.91NGVD291VMD006AP
2024-09-2513:59 UTCm62611 -71.76NAVD881VMD006AP
2024-09-2513:59 UTCm7201984.41  1VMD006AP

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
StatusPPumping
Method of measurementSSteel-tape measurement.
Method of measurementTElectric-tape measurement.
Method of measurementVCalibrated electric-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.
Water-level approval statusPProvisional data subject to revision.