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Groundwater levels for the Nation

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Agency code = usgs
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  • 390931076535901
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USGS 390931076535901 HO De 64

Howard County, Maryland
Latitude  39°09'31", Longitude  76°53'59" NAD27
Land-surface elevation 415 feet above NGVD29
The depth of the well is 141 feet below land surface.
The depth of the hole is 141 feet below land surface.
This well is completed in the Piedmont and Blue Ridge crystalline-rock aquifers (N400PDMBRX) national aquifer.
This well is completed in the Oella Formation (300OELL) 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
1988-09-27 D62610 385.88NGVD291Z  A
1988-09-27 D62611 385.17NAVD881Z  A
1988-09-27 D7201929.12  1Z  A
1988-11-03 D62610 384.98NGVD291Z  A
1988-11-03 D62611 384.27NAVD881Z  A
1988-11-03 D7201930.02  1Z  A
1988-12-02 D62610 384.60NGVD291Z  A
1988-12-02 D62611 383.89NAVD881Z  A
1988-12-02 D7201930.40  1Z  A
1989-01-02 D62610 384.48NGVD291Z  A
1989-01-02 D62611 383.77NAVD881Z  A
1989-01-02 D7201930.52  1Z  A
1989-02-01 D62610 385.10NGVD291Z  A
1989-02-01 D62611 384.39NAVD881Z  A
1989-02-01 D7201929.90  1Z  A
1989-03-01 D62610 385.52NGVD291Z  A
1989-03-01 D62611 384.81NAVD881Z  A
1989-03-01 D7201929.48  1Z  A
1989-04-07 D62610 386.25NGVD291Z  A
1989-04-07 D62611 385.54NAVD881Z  A
1989-04-07 D7201928.75  1Z  A
1989-05-04 D62610 387.00NGVD291Z  A
1989-05-04 D62611 386.29NAVD881Z  A
1989-05-04 D7201928.00  1Z  A
1989-05-31 D62610 389.40NGVD291Z  A
1989-05-31 D62611 388.69NAVD881Z  A
1989-05-31 D7201925.60  1Z  A
1989-06-30 D62610 389.98NGVD291Z  A
1989-06-30 D62611 389.27NAVD881Z  A
1989-06-30 D7201925.02  1Z  A
1989-08-01 D62610 389.93NGVD291Z  A
1989-08-01 D62611 389.22NAVD881Z  A
1989-08-01 D7201925.07  1Z  A
1989-09-01 D62610 389.26NGVD291Z  A
1989-09-01 D62611 388.55NAVD881Z  A
1989-09-01 D7201925.74  1Z  A
1989-09-28 D62610 388.46NGVD291Z  A
1989-09-28 D62611 387.75NAVD881Z  A
1989-09-28 D7201926.54  1Z  A
1989-11-02 D62610 388.15NGVD291Z  A
1989-11-02 D62611 387.44NAVD881Z  A
1989-11-02 D7201926.85  1Z  A
1989-12-01 D62610 387.82NGVD291Z  A
1989-12-01 D62611 387.11NAVD881Z  A
1989-12-01 D7201927.18  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.