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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

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Agency code = usgs
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  • 381745076381201
Minimum number of levels = 1
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USGS 381745076381201 SM Dd 1

St. Mary'S County, Maryland
Latitude  38°17'42.5", Longitude  76°38'11.7" NAD83
Land-surface elevation 93.28 feet above NGVD29
The depth of the well is 494 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.
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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
1967-07-06 D62610 -16.72NGVD291SUSGSSA
1967-07-06 D62611 -17.85NAVD881SUSGSSA
1967-07-06 D72019110.00  1SUSGSSA
1979-03-23 D62610 -21.70NGVD291Z  A
1979-03-23 D62611 -22.83NAVD881Z  A
1979-03-23 D72019114.98  1Z  A
1979-05-22 D62610 -21.72NGVD291Z  A
1979-05-22 D62611 -22.85NAVD881Z  A
1979-05-22 D72019115.00  1Z  A
1982-09-21 D62610 -28.44NGVD291Z  A
1982-09-21 D62611 -29.57NAVD881Z  A
1982-09-21 D72019121.72  1Z  A
1983-04-07 D62610 -26.05NGVD291Z  A
1983-04-07 D62611 -27.18NAVD881Z  A
1983-04-07 D72019119.33  1Z  A
1983-09-15 D62610 -36.69NGVD291Z  A
1983-09-15 D62611 -37.82NAVD881Z  A
1983-09-15 D72019129.97  1Z  A
1984-04-11 D62610 -24.72NGVD291Z  A
1984-04-11 D62611 -25.85NAVD881Z  A
1984-04-11 D72019118.00  1Z  A
1984-09-13 D62610 -31.97NGVD291Z  A
1984-09-13 D62611 -33.10NAVD881Z  A
1984-09-13 D72019125.25  1Z  A
1985-04-02 D62610 -26.82NGVD291Z  A
1985-04-02 D62611 -27.95NAVD881Z  A
1985-04-02 D72019120.10  1Z  A
1985-09-12 D62610 -30.01NGVD291Z  A
1985-09-12 D62611 -31.14NAVD881Z  A
1985-09-12 D72019123.29  1Z  A
1986-04-03 D62610 -29.45NGVD291Z  A
1986-04-03 D62611 -30.58NAVD881Z  A
1986-04-03 D72019122.73  1Z  A
1986-09-12 D62610 -35.73NGVD291Z  A
1986-09-12 D62611 -36.86NAVD881Z  A
1986-09-12 D72019129.01  1Z  A
1987-04-21 D62610 -32.22NGVD291Z  A
1987-04-21 D62611 -33.35NAVD881Z  A
1987-04-21 D72019125.50  1Z  A
1987-09-25 D62610 -40.21NGVD291Z  A
1987-09-25 D62611 -41.34NAVD881Z  A
1987-09-25 D72019133.49  1Z  A
1988-04-14 D62610 -35.02NGVD291Z  A
1988-04-14 D62611 -36.15NAVD881Z  A
1988-04-14 D72019128.30  1Z  A
1988-09-21 D62610 -40.38NGVD291Z  A
1988-09-21 D62611 -41.51NAVD881Z  A
1988-09-21 D72019133.66  1Z  A
1989-04-12 D62610 -36.56NGVD291Z  A
1989-04-12 D62611 -37.69NAVD881Z  A
1989-04-12 D72019129.84  1Z  A
1989-09-14 D62610 -46.42NGVD291Z  A
1989-09-14 D62611 -47.55NAVD881Z  A
1989-09-14 D72019139.70  1Z  A
1990-09-11 D62610 -47.47NGVD291Z  A
1990-09-11 D62611 -48.60NAVD881Z  A
1990-09-11 D72019140.75  1Z  A
1991-04-11 D62610 -45.54NGVD291Z  A
1991-04-11 D62611 -46.67NAVD881Z  A
1991-04-11 D72019138.82  1Z  A
1991-09-06 D62610 -53.99NGVD291Z  A
1991-09-06 D62611 -55.12NAVD881Z  A
1991-09-06 D72019147.27  1Z  A
1992-04-07 D62610 -47.43NGVD291Z  A
1992-04-07 D62611 -48.56NAVD881Z  A
1992-04-07 D72019140.71  1Z  A
1992-09-17 D62610 -52.94NGVD291Z  A
1992-09-17 D62611 -54.07NAVD881Z  A
1992-09-17 D72019146.22  1Z  A
1993-05-03 D62610 -47.99NGVD291Z  A
1993-05-03 D62611 -49.12NAVD881Z  A
1993-05-03 D72019141.27  1Z  A
1993-09-30 D62610 -57.41NGVD291Z  A
1993-09-30 D62611 -58.54NAVD881Z  A
1993-09-30 D72019150.69  1Z  A
1994-05-03 D62610 -53.49NGVD291Z  A
1994-05-03 D62611 -54.62NAVD881Z  A
1994-05-03 D72019146.77  1Z  A
1994-09-08 D62610 -58.58NGVD291Z  A
1994-09-08 D62611 -59.71NAVD881Z  A
1994-09-08 D72019151.86  1Z  A
1995-05-31 D62610 -59.51NGVD291Z  A
1995-05-31 D62611 -60.64NAVD881Z  A
1995-05-31 D72019152.79  1Z  A
1995-09-26 D62610 -63.34NGVD291Z  A
1995-09-26 D62611 -64.47NAVD881Z  A
1995-09-26 D72019156.62  1Z  A
1996-04-25 D62610 -59.35NGVD291Z  A
1996-04-25 D62611 -60.48NAVD881Z  A
1996-04-25 D72019152.63  1Z  A
1996-09-25 D62610 -62.45NGVD291Z  A
1996-09-25 D62611 -63.58NAVD881Z  A
1996-09-25 D72019155.73  1Z  A
1997-04-15 D62610 -62.84NGVD291Z  A
1997-04-15 D62611 -63.97NAVD881Z  A
1997-04-15 D72019156.12  1Z  A
1997-09-17 D62610 -70.27NGVD291Z  A
1997-09-17 D62611 -71.40NAVD881Z  A
1997-09-17 D72019163.55  1Z  A
1998-05-11 D62610 -66.53NGVD291Z  A
1998-05-11 D62611 -67.66NAVD881Z  A
1998-05-11 D72019159.81  1Z  A
1998-09-23 D62610 -75.17NGVD291Z  A
1998-09-23 D62611 -76.30NAVD881Z  A
1998-09-23 D72019168.45  1Z  A
1999-04-16 D62610 -70.90NGVD291Z  A
1999-04-16 D62611 -72.03NAVD881Z  A
1999-04-16 D72019164.18  1Z  A
2000-04-19 D62610 -72.21NGVD291Z  A
2000-04-19 D62611 -73.34NAVD881Z  A
2000-04-19 D72019165.49  1Z  A
2000-09-13 D62610 -71.22NGVD291Z  A
2000-09-13 D62611 -72.35NAVD881Z  A
2000-09-13 D72019164.50  1Z  A
2001-04-24 D62610 -77.20NGVD291Z  A
2001-04-24 D62611 -78.33NAVD881Z  A
2001-04-24 D72019170.48  1Z  A
2001-09-12 D62610 -81.86NGVD291Z  A
2001-09-12 D62611 -82.99NAVD881Z  A
2001-09-12 D72019175.14  1Z  A
2002-09-17 D62610 -83.95NGVD291TUSGSSA
2002-09-17 D62611 -85.08NAVD881TUSGSSA
2002-09-17 D72019177.23  1TUSGSSA
2003-05-29 D62610 -76.75NGVD291TUSGSSA
2003-05-29 D62611 -77.88NAVD881TUSGSSA
2003-05-29 D72019170.03  1TUSGSSA
2003-09-11 D62610 -82.84NGVD291TUSGSSA
2003-09-11 D62611 -83.97NAVD881TUSGSSA
2003-09-11 D72019176.12  1TUSGSSA
2004-05-05 D62610 -83.06NGVD291TUSGSSA
2004-05-05 D62611 -84.19NAVD881TUSGSSA
2004-05-05 D72019176.34  1TUSGSSA
2004-09-30 D62610 -84.44NGVD291TUSGSSA
2004-09-30 D62611 -85.57NAVD881TUSGSSA
2004-09-30 D72019177.72  1TUSGSSA
2005-09-14 D62610 -91.50NGVD291TUSGSSA
2005-09-14 D62611 -92.63NAVD881TUSGSSA
2005-09-14 D72019184.78  1TUSGSSA
2006-09-28 D62610 -88.67NGVD291TUSGSSA
2006-09-28 D62611 -89.80NAVD881TUSGSSA
2006-09-28 D72019181.95  1TUSGSSA
2007-09-18 D62610 -80.32NGVD291TUSGSSA
2007-09-18 D62611 -81.45NAVD881TUSGSSA
2007-09-18 D72019173.60  1TUSGSSA
2008-09-1120:00 UTCm62610 -71.82NGVD291TUSGSSA
2008-09-1120:00 UTCm62611 -72.95NAVD881TUSGSSA
2008-09-1120:00 UTCm72019165.10  1TUSGSSA
2009-06-0114:35 UTCm62610 -86.06NGVD291TMD006AA
2009-06-0114:35 UTCm62611 -87.19NAVD881TMD006AA
2009-06-0114:35 UTCm72019179.34  1TMD006AA
2009-09-22 D62610 -70.15NGVD291TUSGSSA
2009-09-22 D62611 -71.28NAVD881TUSGSSA
2009-09-22 D72019163.43  1TUSGSSA
2010-09-15 D62610 -72.17NGVD291TUSGSSA
2010-09-15 D62611 -73.30NAVD881TUSGSSA
2010-09-15 D72019165.45  1TUSGSSA
2011-10-0315:55 UTCm62610 -70.05NGVD291TUSGSSA
2011-10-0315:55 UTCm62611 -71.18NAVD881TUSGSSA
2011-10-0315:55 UTCm72019163.33  1TUSGSSA
2012-04-2715:02 UTCm62610 -70.39NGVD291TUSGSSA
2012-04-2715:02 UTCm62611 -71.52NAVD881TUSGSSA
2012-04-2715:02 UTCm72019163.67  1TUSGSSA
2012-09-1220:00 UTCm62610 -74.47NGVD291TUSGSSA
2012-09-1220:00 UTCm62611 -75.60NAVD881TUSGSSA
2012-09-1220:00 UTCm72019167.75  1TUSGSSA

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.