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Groundwater levels for the Nation

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  • 383251076480001
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USGS 383251076480001 CH Cg 20

Charles County, Maryland
Latitude  38°32'51", Longitude  76°48'00" NAD27
Land-surface elevation 181.62 feet above NGVD29
The depth of the well is 466 feet below land surface.
The depth of the hole is 466 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
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
1976-02-18 D62610 17.62NGVD291L  A
1976-02-18 D62611 16.77NAVD881L  A
1976-02-18 D72019164.00  1L  A
1979-04-17 D62610 6.17NGVD291Z  A
1979-04-17 D62611 5.32NAVD881Z  A
1979-04-17 D72019175.45  1Z  A
1980-05-01 D62610 -2.28NGVD291Z  A
1980-05-01 D62611 -3.13NAVD881Z  A
1980-05-01 D72019183.90  1Z  A
1982-09-08 D62610 -2.36NGVD291Z  A
1982-09-08 D62611 -3.21NAVD881Z  A
1982-09-08 D72019183.98  1Z  A
1983-04-06 D62610 -2.94NGVD291Z  A
1983-04-06 D62611 -3.79NAVD881Z  A
1983-04-06 D72019184.56  1Z  A
1983-10-03 D62610 -6.68NGVD291Z  A
1983-10-03 D62611 -7.53NAVD881Z  A
1983-10-03 D72019188.30  1Z  A
1984-06-06 D62610 -7.21NGVD291Z  A
1984-06-06 D62611 -8.06NAVD881Z  A
1984-06-06 D72019188.83  1Z  A
1984-09-26 D62610 -8.88NGVD291Z  A
1984-09-26 D62611 -9.73NAVD881Z  A
1984-09-26 D72019190.50  1Z  A
1985-04-05 D62610 -8.80NGVD291Z  A
1985-04-05 D62611 -9.65NAVD881Z  A
1985-04-05 D72019190.42  1Z  A
1985-09-19 D62610 -12.50NGVD291Z  A
1985-09-19 D62611 -13.35NAVD881Z  A
1985-09-19 D72019194.12  1Z  A
1986-04-04 D62610 -12.66NGVD291Z  A
1986-04-04 D62611 -13.51NAVD881Z  A
1986-04-04 D72019194.28  1Z  A
1986-09-19 D62610 -15.77NGVD291Z  A
1986-09-19 D62611 -16.62NAVD881Z  A
1986-09-19 D72019197.39  1Z  A
1987-04-22 D62610 -13.34NGVD291Z  A
1987-04-22 D62611 -14.19NAVD881Z  A
1987-04-22 D72019194.96  1Z  A
1987-09-25 D62610 -16.10NGVD291Z  A
1987-09-25 D62611 -16.95NAVD881Z  A
1987-09-25 D72019197.72  1Z  A
1988-04-26 D62610 -14.05NGVD291Z  A
1988-04-26 D62611 -14.90NAVD881Z  A
1988-04-26 D72019195.67  1Z  A
1988-09-14 D62610 -17.44NGVD291Z  A
1988-09-14 D62611 -18.29NAVD881Z  A
1988-09-14 D72019199.06  1Z  A
1989-04-12 D62610 -15.83NGVD291Z  A
1989-04-12 D62611 -16.68NAVD881Z  A
1989-04-12 D72019197.45  1Z  A
1989-09-13 D62610 -18.44NGVD291Z  A
1989-09-13 D62611 -19.29NAVD881Z  A
1989-09-13 D72019200.06  1Z  A
1990-04-11 D62610 -18.91NGVD29PZ  A
1990-04-11 D62611 -19.76NAVD88PZ  A
1990-04-11 D72019200.53  PZ  A
1990-09-06 D62610 -20.50NGVD291Z  A
1990-09-06 D62611 -21.35NAVD881Z  A
1990-09-06 D72019202.12  1Z  A
1991-04-10 D62610 -18.05NGVD291Z  A
1991-04-10 D62611 -18.90NAVD881Z  A
1991-04-10 D72019199.67  1Z  A
1991-09-10 D62610 -23.93NGVD29PZ  A
1991-09-10 D62611 -24.78NAVD88PZ  A
1991-09-10 D72019205.55  PZ  A
1992-04-16 D62610 -20.86NGVD291Z  A
1992-04-16 D62611 -21.71NAVD881Z  A
1992-04-16 D72019202.48  1Z  A
1992-09-16 D62610 -23.39NGVD291Z  A
1992-09-16 D62611 -24.24NAVD881Z  A
1992-09-16 D72019205.01  1Z  A
1993-04-27 D62610 -22.52NGVD29PZ  A
1993-04-27 D62611 -23.37NAVD88PZ  A
1993-04-27 D72019204.14  PZ  A
1993-09-27 D62610 -27.57NGVD291Z  A
1993-09-27 D62611 -28.42NAVD881Z  A
1993-09-27 D72019209.19  1Z  A
1994-04-25 D62610 -25.03NGVD291Z  A
1994-04-25 D62611 -25.88NAVD881Z  A
1994-04-25 D72019206.65  1Z  A
1994-09-16 D62610 -28.74NGVD291Z  A
1994-09-16 D62611 -29.59NAVD881Z  A
1994-09-16 D72019210.36  1Z  A
1995-05-11 D62610 -28.56NGVD291Z  A
1995-05-11 D62611 -29.41NAVD881Z  A
1995-05-11 D72019210.18  1Z  A
1995-09-13 D62610 -33.37NGVD291Z  A
1995-09-13 D62611 -34.22NAVD881Z  A
1995-09-13 D72019214.99  1Z  A
1996-04-05 D62610 -31.45NGVD291Z  A
1996-04-05 D62611 -32.30NAVD881Z  A
1996-04-05 D72019213.07  1Z  A
1996-09-18 D62610 -34.32NGVD291Z  A
1996-09-18 D62611 -35.17NAVD881Z  A
1996-09-18 D72019215.94  1Z  A
1997-04-09 D62610 -32.69NGVD291Z  A
1997-04-09 D62611 -33.54NAVD881Z  A
1997-04-09 D72019214.31  1Z  A
1997-09-08 D62610 -37.24NGVD291Z  A
1997-09-08 D62611 -38.09NAVD881Z  A
1997-09-08 D72019218.86  1Z  A
1998-09-16 D62610 -40.72NGVD291Z  A
1998-09-16 D62611 -41.57NAVD881Z  A
1998-09-16 D72019222.34  1Z  A
1999-04-19 D62610 -38.43NGVD291Z  A
1999-04-19 D62611 -39.28NAVD881Z  A
1999-04-19 D72019220.05  1Z  A
1999-09-01 D62610 -43.99NGVD291Z  A
1999-09-01 D62611 -44.84NAVD881Z  A
1999-09-01 D72019225.61  1Z  A
2000-04-24 D62610 -41.08NGVD291Z  A
2000-04-24 D62611 -41.93NAVD881Z  A
2000-04-24 D72019222.70  1Z  A
2000-09-15 D62610 -43.49NGVD291Z  A
2000-09-15 D62611 -44.34NAVD881Z  A
2000-09-15 D72019225.11  1Z  A
2001-04-09 D62610 -41.31NGVD291Z  A
2001-04-09 D62611 -42.16NAVD881Z  A
2001-04-09 D72019222.93  1Z  A
2001-09-05 D62610 -45.61NGVD291Z  A
2001-09-05 D62611 -46.46NAVD881Z  A
2001-09-05 D72019227.23  1Z  A
2002-04-08 D62610 -44.43NGVD291TUSGSSA
2002-04-08 D62611 -45.28NAVD881TUSGSSA
2002-04-08 D72019226.05  1TUSGSSA
2002-09-18 D62610 -46.43NGVD291TUSGSSA
2002-09-18 D62611 -47.28NAVD881TUSGSSA
2002-09-18 D72019228.05  1TUSGSSA
2003-05-02 D62610 -54.36NGVD291SUSGSSA
2003-05-02 D62611 -55.21NAVD881SUSGSSA
2003-05-02 D72019235.98  1SUSGSSA
2003-09-15 D62610 -49.46NGVD291SUSGSSA
2003-09-15 D62611 -50.31NAVD881SUSGSSA
2003-09-15 D72019231.08  1SUSGSSA
2004-04-26 D62610 -51.69NGVD291SUSGSSA
2004-04-26 D62611 -52.54NAVD881SUSGSSA
2004-04-26 D72019233.31  1SUSGSSA
2004-09-13 D62610 -53.66NGVD291SUSGSSA
2004-09-13 D62611 -54.51NAVD881SUSGSSA
2004-09-13 D72019235.28  1SUSGSSA
2005-10-05 D62610 -54.75NGVD291SUSGSSA
2005-10-05 D62611 -55.60NAVD881SUSGSSA
2005-10-05 D72019236.37  1SUSGSSA
2006-09-29 D62610 -56.00NGVD291SUSGSSA
2006-09-29 D62611 -56.85NAVD881SUSGSSA
2006-09-29 D72019237.62  1SUSGSSA
2007-09-06 D62610 -61.51NGVD291SUSGSSA
2007-09-06 D62611 -62.36NAVD881SUSGSSA
2007-09-06 D72019243.13  1SUSGSSA

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
StatusPWater level was affected by pumping at the time of the measurement
Method of measurementLInterpreted from geophysical logs.
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.