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Groundwater levels for the Nation

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  • 390929076490101
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USGS 390929076490101 HO Df 34

Howard County, Maryland
Latitude  39°09'29", Longitude  76°49'01" NAD27
Land-surface elevation 305 feet above NGVD29
The depth of the well is 15.0 feet below land surface.
The depth of the hole is 15.0 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 Mount Washington Amphibolite (300MWSG) 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
1988-05-04 D62610 297.37NGVD291Z  A
1988-05-04 D62611 296.65NAVD881Z  A
1988-05-04 D720197.63  1Z  A
1988-06-03 D62610 300.67NGVD291Z  A
1988-06-03 D62611 299.95NAVD881Z  A
1988-06-03 D720194.33  1Z  A
1988-06-30 D62610 296.62NGVD291Z  A
1988-06-30 D62611 295.90NAVD881Z  A
1988-06-30 D720198.38  1Z  A
1988-08-02 D62610 295.66NGVD291Z  A
1988-08-02 D62611 294.94NAVD881Z  A
1988-08-02 D720199.34  1Z  A
1988-09-01 D62610 295.19NGVD291Z  A
1988-09-01 D62611 294.47NAVD881Z  A
1988-09-01 D720199.81  1Z  A
1988-09-30 D62610 294.77NGVD291Z  A
1988-09-30 D62611 294.05NAVD881Z  A
1988-09-30 D7201910.23  1Z  A
1988-11-04 D62610 294.27NGVD291Z  A
1988-11-04 D62611 293.55NAVD881Z  A
1988-11-04 D7201910.73  1Z  A
1988-12-05 D62610 295.94NGVD291Z  A
1988-12-05 D62611 295.22NAVD881Z  A
1988-12-05 D720199.06  1Z  A
1989-01-03 D62610 295.10NGVD291Z  A
1989-01-03 D62611 294.38NAVD881Z  A
1989-01-03 D720199.90  1Z  A
1989-01-31 D62610 297.40NGVD291Z  A
1989-01-31 D62611 296.68NAVD881Z  A
1989-01-31 D720197.60  1Z  A
1989-03-03 D62610 302.25NGVD291Z  A
1989-03-03 D62611 301.53NAVD881Z  A
1989-03-03 D720192.75  1Z  A
1989-04-10 D62610 303.58NGVD291Z  A
1989-04-10 D62611 302.86NAVD881Z  A
1989-04-10 D720191.42  1Z  A
1989-05-03 D62610 303.40NGVD291Z  A
1989-05-03 D62611 302.68NAVD881Z  A
1989-05-03 D720191.60  1Z  A
1989-05-31 D62610 302.37NGVD291Z  A
1989-05-31 D62611 301.65NAVD881Z  A
1989-05-31 D720192.63  1Z  A
1989-07-03 D62610 300.53NGVD291Z  A
1989-07-03 D62611 299.81NAVD881Z  A
1989-07-03 D720194.47  1Z  A
1989-08-02 D62610 298.82NGVD291Z  A
1989-08-02 D62611 298.10NAVD881Z  A
1989-08-02 D720196.18  1Z  A
1989-08-30 D62610 296.43NGVD291Z  A
1989-08-30 D62611 295.71NAVD881Z  A
1989-08-30 D720198.57  1Z  A
1989-09-28 D62610 296.91NGVD291Z  A
1989-09-28 D62611 296.19NAVD881Z  A
1989-09-28 D720198.09  1Z  A
1989-11-02 D62610 298.27NGVD291Z  A
1989-11-02 D62611 297.55NAVD881Z  A
1989-11-02 D720196.73  1Z  A
1989-12-01 D62610 298.45NGVD291Z  A
1989-12-01 D62611 297.73NAVD881Z  A
1989-12-01 D720196.55  1Z  A
1990-01-02 D62610 299.34NGVD291Z  A
1990-01-02 D62611 298.62NAVD881Z  A
1990-01-02 D720195.66  1Z  A
1990-01-31 D62610 304.20NGVD291Z  A
1990-01-31 D62611 303.48NAVD881Z  A
1990-01-31 D720190.80  1Z  A
1990-03-02 D62610 300.93NGVD291Z  A
1990-03-02 D62611 300.21NAVD881Z  A
1990-03-02 D720194.07  1Z  A
1990-04-02 D62610 300.72NGVD291Z  A
1990-04-02 D62611 300.00NAVD881Z  A
1990-04-02 D720194.28  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.