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Groundwater levels for the Nation

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Agency code = usgs
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  • 391042076445501
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USGS 391042076445501 HO Cg 6

Howard County, Maryland
Latitude  39°10'42", Longitude  76°44'55" NAD27
Land-surface elevation 120 feet above NGVD29
The depth of the well is 82 feet below land surface.
The depth of the hole is 82 feet below land surface.
This well is completed in the Relay Gneiss Member of James Run Formation (300RELY) 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
1952-04-23 D62610 116.23NGVD291SUSGSSA
1952-04-23 D62611 115.48NAVD881SUSGSSA
1952-04-23 D720193.77  1SUSGSSA
1988-05-04 D62610 116.74NGVD291Z  A
1988-05-04 D62611 115.99NAVD881Z  A
1988-05-04 D720193.26  1Z  A
1988-06-03 D62610 116.78NGVD291Z  A
1988-06-03 D62611 116.03NAVD881Z  A
1988-06-03 D720193.22  1Z  A
1988-06-30 D62610 115.51NGVD291Z  A
1988-06-30 D62611 114.76NAVD881Z  A
1988-06-30 D720194.49  1Z  A
1988-08-02 D62610 114.86NGVD291Z  A
1988-08-02 D62611 114.11NAVD881Z  A
1988-08-02 D720195.14  1Z  A
1988-09-01 D62610 114.46NGVD291Z  A
1988-09-01 D62611 113.71NAVD881Z  A
1988-09-01 D720195.54  1Z  A
1988-09-30 D62610 114.54NGVD291Z  A
1988-09-30 D62611 113.79NAVD881Z  A
1988-09-30 D720195.46  1Z  A
1988-11-04 D62610 115.05NGVD291Z  A
1988-11-04 D62611 114.30NAVD881Z  A
1988-11-04 D720194.95  1Z  A
1988-12-05 D62610 116.58NGVD291Z  A
1988-12-05 D62611 115.83NAVD881Z  A
1988-12-05 D720193.42  1Z  A
1989-01-03 D62610 117.49NGVD291Z  A
1989-01-03 D62611 116.74NAVD881Z  A
1989-01-03 D720192.51  1Z  A
1989-02-02 D62610 117.11NGVD291Z  A
1989-02-02 D62611 116.36NAVD881Z  A
1989-02-02 D720192.89  1Z  A
1989-03-03 D62610 117.32NGVD291Z  A
1989-03-03 D62611 116.57NAVD881Z  A
1989-03-03 D720192.68  1Z  A
1989-04-10 D62610 117.65NGVD291Z  A
1989-04-10 D62611 116.90NAVD881Z  A
1989-04-10 D720192.35  1Z  A
1989-05-03 D62610 117.90NGVD291Z  A
1989-05-03 D62611 117.15NAVD881Z  A
1989-05-03 D720192.10  1Z  A
1989-05-31 D62610 116.99NGVD291Z  A
1989-05-31 D62611 116.24NAVD881Z  A
1989-05-31 D720193.01  1Z  A
1989-07-03 D62610 116.67NGVD291Z  A
1989-07-03 D62611 115.92NAVD881Z  A
1989-07-03 D720193.33  1Z  A
1989-08-02 D62610 117.12NGVD291Z  A
1989-08-02 D62611 116.37NAVD881Z  A
1989-08-02 D720192.88  1Z  A
1989-08-30 D62610 116.04NGVD291Z  A
1989-08-30 D62611 115.29NAVD881Z  A
1989-08-30 D720193.96  1Z  A
1989-09-28 D62610 116.33NGVD291Z  A
1989-09-28 D62611 115.58NAVD881Z  A
1989-09-28 D720193.67  1Z  A
1989-11-02 D62610 116.95NGVD291Z  A
1989-11-02 D62611 116.20NAVD881Z  A
1989-11-02 D720193.05  1Z  A
1989-12-01 D62610 117.10NGVD291Z  A
1989-12-01 D62611 116.35NAVD881Z  A
1989-12-01 D720192.90  1Z  A
1990-01-02 D62610 117.76NGVD291Z  A
1990-01-02 D62611 117.01NAVD881Z  A
1990-01-02 D720192.24  1Z  A
1990-01-31 D62610 117.97NGVD291Z  A
1990-01-31 D62611 117.22NAVD881Z  A
1990-01-31 D720192.03  1Z  A
1990-03-02 D62610 117.30NGVD291Z  A
1990-03-02 D62611 116.55NAVD881Z  A
1990-03-02 D720192.70  1Z  A
1990-04-02 D62610 117.73NGVD291Z  A
1990-04-02 D62611 116.98NAVD881Z  A
1990-04-02 D720192.27  1Z  A

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 measurementSSteel-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.