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Groundwater levels for the Nation

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Agency code = usgs
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  • 391150077000301
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USGS 391150077000301 HO Cc 37

Howard County, Maryland
Latitude  39°11'50", Longitude  77°00'03" NAD27
Land-surface elevation 470 feet above NGVD29
The depth of the well is 285 feet below land surface.
The depth of the hole is 285 feet below land surface.
This well is completed in the Loch Raven Schist (370LCRV) local aquifer.
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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
1987-12-01 D62610 422.03NGVD291Z  A
1987-12-01 D62611 421.32NAVD881Z  A
1987-12-01 D7201947.97  1Z  A
1987-12-07 D62610 421.93NGVD291Z  A
1987-12-07 D62611 421.22NAVD881Z  A
1987-12-07 D7201948.07  1Z  A
1988-01-06 D62610 422.11NGVD291Z  A
1988-01-06 D62611 421.40NAVD881Z  A
1988-01-06 D7201947.89  1Z  A
1988-02-05 D62610 422.26NGVD291Z  A
1988-02-05 D62611 421.55NAVD881Z  A
1988-02-05 D7201947.74  1Z  A
1988-03-07 D62610 422.82NGVD291Z  A
1988-03-07 D62611 422.11NAVD881Z  A
1988-03-07 D7201947.18  1Z  A
1988-03-31 D62610 423.08NGVD291Z  A
1988-03-31 D62611 422.37NAVD881Z  A
1988-03-31 D7201946.92  1Z  A
1988-05-02 D62610 423.29NGVD291Z  A
1988-05-02 D62611 422.58NAVD881Z  A
1988-05-02 D7201946.71  1Z  A
1988-06-02 D62610 424.09NGVD291Z  A
1988-06-02 D62611 423.38NAVD881Z  A
1988-06-02 D7201945.91  1Z  A
1988-07-01 D62610 423.62NGVD291Z  A
1988-07-01 D62611 422.91NAVD881Z  A
1988-07-01 D7201946.38  1Z  A
1988-08-01 D62610 423.07NGVD291Z  A
1988-08-01 D62611 422.36NAVD881Z  A
1988-08-01 D7201946.93  1Z  A
1988-08-31 D62610 423.46NGVD291Z  A
1988-08-31 D62611 422.75NAVD881Z  A
1988-08-31 D7201946.54  1Z  A
1988-09-29 D62610 423.02NGVD291Z  A
1988-09-29 D62611 422.31NAVD881Z  A
1988-09-29 D7201946.98  1Z  A
1988-10-31 D62610 422.48NGVD291Z  A
1988-10-31 D62611 421.77NAVD881Z  A
1988-10-31 D7201947.52  1Z  A
1988-11-30 D62610 422.70NGVD291Z  A
1988-11-30 D62611 421.99NAVD881Z  A
1988-11-30 D7201947.30  1Z  A
1988-12-30 D62610 422.25NGVD291Z  A
1988-12-30 D62611 421.54NAVD881Z  A
1988-12-30 D7201947.75  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.