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Groundwater levels for the Nation

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Agency code = usgs
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  • 383149076583801
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USGS 383149076583801 CH Ce 30

Charles County, Maryland
Latitude  38°31'49", Longitude  76°58'38" NAD27
Land-surface elevation 190 feet above NGVD29
The depth of the well is 637 feet below land surface.
The depth of the hole is 637 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 Upper Patapsco Aquifer In the Patapsco Formation (217PPSCU) 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
1959-06-01 D62610 20.00NGVD291L  A
1959-06-01 D62611 19.22NAVD881L  A
1959-06-01 D72019170.00  1L  A
1991-10-10 D62610 -134.59NGVD291Z  A
1991-10-10 D62611 -135.37NAVD881Z  A
1991-10-10 D72019324.59  1Z  A
1992-09-23 D62610 -134.01NGVD291Z  A
1992-09-23 D62611 -134.79NAVD881Z  A
1992-09-23 D72019324.01  1Z  A
1993-04-23 D62610 -104.58NGVD291Z  A
1993-04-23 D62611 -105.36NAVD881Z  A
1993-04-23 D72019294.58  1Z  A
1995-09-18 D62610 -91.42NGVD291Z  A
1995-09-18 D62611 -92.20NAVD881Z  A
1995-09-18 D72019281.42  1Z  A
1999-09-09 D62610 -109.29NGVD291Z  A
1999-09-09 D62611 -110.07NAVD881Z  A
1999-09-09 D72019299.29  1Z  A
2000-09-14 D62610 -88.58NGVD291Z  A
2000-09-14 D62611 -89.36NAVD881Z  A
2000-09-14 D72019278.58  1Z  A
2001-09-19 D62610 -103.95NGVD291Z  A
2001-09-19 D62611 -104.73NAVD881Z  A
2001-09-19 D72019293.95  1Z  A
2002-09-18 D62610 -91.28NGVD291TUSGSSA
2002-09-18 D62611 -92.06NAVD881TUSGSSA
2002-09-18 D72019281.28  1TUSGSSA
2003-09-16 D62610 -89.03NGVD291SUSGSSA
2003-09-16 D62611 -89.81NAVD881SUSGSSA
2003-09-16 D72019279.03  1SUSGSSA
2004-04-27 D62610 -86.84NGVD291SUSGSSA
2004-04-27 D62611 -87.62NAVD881SUSGSSA
2004-04-27 D72019276.84  1SUSGSSA
2004-09-15 D62610 -88.64NGVD291SUSGSSA
2004-09-15 D62611 -89.42NAVD881SUSGSSA
2004-09-15 D72019278.64  1SUSGSSA
2005-09-23 D62610 -92.00NGVD291SUSGSSA
2005-09-23 D62611 -92.78NAVD881SUSGSSA
2005-09-23 D72019282.00  1SUSGSSA
2006-10-05 D62610 -93.50NGVD291SUSGSSA
2006-10-05 D62611 -94.28NAVD881SUSGSSA
2006-10-05 D72019283.50  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
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.