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Groundwater levels for the Nation

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Agency code = usgs
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  • 392945076101101
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USGS 392945076101101 HA De 91

Harford County, Maryland
Latitude  39°29'45", Longitude  76°10'11" NAD27
Land-surface elevation 58.50 feet above NGVD29
The depth of the well is 47.0 feet below land surface.
The depth of the hole is 64.1 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 Talbot Formation (112TLBT) 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
1965-03 M62610 41.50NGVD291OUSGSSA
1965-03 M62611 40.69NAVD881OUSGSSA
1965-03 M7201917.00  1OUSGSSA
1988-05-16 D62610 37.03NGVD291Z  A
1988-05-16 D62611 36.22NAVD881Z  A
1988-05-16 D7201921.47  1Z  A
1989-05-03 D62610 38.50NGVD291Z  A
1989-05-03 D62611 37.69NAVD881Z  A
1989-05-03 D7201920.00  1Z  A
1994-04-14 D62610 42.95NGVD291Z  A
1994-04-14 D62611 42.14NAVD881Z  A
1994-04-14 D7201915.55  1Z  A
1994-06-08 D62610 42.42NGVD291Z  A
1994-06-08 D62611 41.61NAVD881Z  A
1994-06-08 D7201916.08  1Z  A
1994-08-23 D62610 40.89NGVD291Z  A
1994-08-23 D62611 40.08NAVD881Z  A
1994-08-23 D7201917.61  1Z  A
1994-10-20 D62610 39.30NGVD291Z  A
1994-10-20 D62611 38.49NAVD881Z  A
1994-10-20 D7201919.20  1Z  A
1995-01-10 D62610 37.86NGVD291Z  A
1995-01-10 D62611 37.05NAVD881Z  A
1995-01-10 D7201920.64  1Z  A
1995-02-22 D62610 37.19NGVD291Z  A
1995-02-22 D62611 36.38NAVD881Z  A
1995-02-22 D7201921.31  1Z  A
1995-04-12 D62610 36.78NGVD291Z  A
1995-04-12 D62611 35.97NAVD881Z  A
1995-04-12 D7201921.72  1Z  A
2002-12-19 D62610 44.53NGVD291TUSGSSA
2002-12-19 D62611 43.72NAVD881TUSGSSA
2002-12-19 D7201913.97  1TUSGSSA

Explanation
SectionCodeDescription
Water-level date-time accuracyDDate is accurate to the Day
Water-level date-time accuracyMDate is accurate to the Month
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 measurementOObserved.
Method of measurementTElectric-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.