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Groundwater levels for the Nation

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Agency code = usgs
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  • 391247076431401
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USGS 391247076431401 HO Cg 23

Howard County, Maryland
Latitude  39°12'47", Longitude  76°43'14" NAD27
Land-surface elevation 160 feet above NGVD29
The depth of the well is 200 feet below land surface.
The depth of the hole is 200 feet below land surface.
This well is completed in the Relay Gneiss Member of James Run Formation (300RELY) 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
1988-05-09 D62610 133.58NGVD291Z  A
1988-05-09 D62611 132.82NAVD881Z  A
1988-05-09 D7201926.42  1Z  A
1988-06-03 D62610 131.55NGVD291Z  A
1988-06-03 D62611 130.79NAVD881Z  A
1988-06-03 D7201928.45  1Z  A
1988-06-30 D62610 130.07NGVD291Z  A
1988-06-30 D62611 129.31NAVD881Z  A
1988-06-30 D7201929.93  1Z  A
1988-08-02 D62610 130.35NGVD291Z  A
1988-08-02 D62611 129.59NAVD881Z  A
1988-08-02 D7201929.65  1Z  A
1988-09-01 D62610 130.23NGVD291Z  A
1988-09-01 D62611 129.47NAVD881Z  A
1988-09-01 D7201929.77  1Z  A
1988-09-30 D62610 129.00NGVD291Z  A
1988-09-30 D62611 128.24NAVD881Z  A
1988-09-30 D7201931.00  1Z  A
1988-11-04 D62610 128.39NGVD291Z  A
1988-11-04 D62611 127.63NAVD881Z  A
1988-11-04 D7201931.61  1Z  A
1988-12-05 D62610 130.95NGVD291Z  A
1988-12-05 D62611 130.19NAVD881Z  A
1988-12-05 D7201929.05  1Z  A
1989-01-03 D62610 130.15NGVD291Z  A
1989-01-03 D62611 129.39NAVD881Z  A
1989-01-03 D7201929.85  1Z  A
1989-02-02 D62610 130.94NGVD291Z  A
1989-02-02 D62611 130.18NAVD881Z  A
1989-02-02 D7201929.06  1Z  A
1989-03-03 D62610 132.00NGVD291Z  A
1989-03-03 D62611 131.24NAVD881Z  A
1989-03-03 D7201928.00  1Z  A
1989-04-10 D62610 133.24NGVD291Z  A
1989-04-10 D62611 132.48NAVD881Z  A
1989-04-10 D7201926.76  1Z  A
1989-05-03 D62610 133.94NGVD291Z  A
1989-05-03 D62611 133.18NAVD881Z  A
1989-05-03 D7201926.06  1Z  A
1989-05-30 D62610 133.18NGVD291Z  A
1989-05-30 D62611 132.42NAVD881Z  A
1989-05-30 D7201926.82  1Z  A
1989-07-03 D62610 132.21NGVD291Z  A
1989-07-03 D62611 131.45NAVD881Z  A
1989-07-03 D7201927.79  1Z  A
1989-08-02 D62610 132.87NGVD291Z  A
1989-08-02 D62611 132.11NAVD881Z  A
1989-08-02 D7201927.13  1Z  A
1989-08-30 D62610 130.46NGVD291Z  A
1989-08-30 D62611 129.70NAVD881Z  A
1989-08-30 D7201929.54  1Z  A
1989-09-28 D62610 131.30NGVD291Z  A
1989-09-28 D62611 130.54NAVD881Z  A
1989-09-28 D7201928.70  1Z  A
1989-11-02 D62610 131.23NGVD291Z  A
1989-11-02 D62611 130.47NAVD881Z  A
1989-11-02 D7201928.77  1Z  A
1989-12-01 D62610 130.94NGVD291Z  A
1989-12-01 D62611 130.18NAVD881Z  A
1989-12-01 D7201929.06  1Z  A
1990-01-02 D62610 131.67NGVD291Z  A
1990-01-02 D62611 130.91NAVD881Z  A
1990-01-02 D7201928.33  1Z  A
1990-01-31 D62610 134.49NGVD291Z  A
1990-01-31 D62611 133.73NAVD881Z  A
1990-01-31 D7201925.51  1Z  A
1990-03-01 D62610 132.64NGVD291Z  A
1990-03-01 D62611 131.88NAVD881Z  A
1990-03-01 D7201927.36  1Z  A
1990-04-02 D62610 133.42NGVD291Z  A
1990-04-02 D62611 132.66NAVD881Z  A
1990-04-02 D7201926.58  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 measurementZOther.
Measuring agencyNot determined
Source of measurementNot determined
Water-level approval statusAApproved for publication -- Processing and review completed.