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Groundwater levels for the Nation

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Agency code = usgs
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  • 404538073382504
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USGS 404538073382504 N 12274. 1

Nassau County, New York
Latitude  40°45'38", Longitude  73°38'25" NAD27
Land-surface elevation 106.8 feet above NGVD29
The depth of the well is 70 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 Glacial Aquifer, Upper (112GLCLU) local aquifer.
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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
1993-12-2919:14 UTCm62610 60.27NGVD291OUSGSSA
1993-12-2919:14 UTCm62611 59.14NAVD881OUSGSSA
1993-12-2919:14 UTCm7201946.53  1OUSGSSA
1994-06-0718:05 UTCm62610 61.40NGVD291OUSGSSA
1994-06-0718:05 UTCm62611 60.27NAVD881OUSGSSA
1994-06-0718:05 UTCm7201945.40  1OUSGSSA
1995-06-1312:34 UTCm62610 57.94NGVD291OUSGSSA
1995-06-1312:34 UTCm62611 56.81NAVD881OUSGSSA
1995-06-1312:34 UTCm7201948.86  1OUSGSSA
1995-12-0514:40 UTCm62610 56.75NGVD291OUSGSSA
1995-12-0514:40 UTCm62611 55.62NAVD881OUSGSSA
1995-12-0514:40 UTCm7201950.05  1OUSGSSA
1996-03-2117:15 UTCm62610 57.04NGVD291OUSGSSA
1996-03-2117:15 UTCm62611 55.91NAVD881OUSGSSA
1996-03-2117:15 UTCm7201949.76  1OUSGSSA
1996-05-1512:37 UTCm62610 57.66NGVD291OUSGSSA
1996-05-1512:37 UTCm62611 56.53NAVD881OUSGSSA
1996-05-1512:37 UTCm7201949.14  1OUSGSSA
1996-09-1014:15 UTCm62610 57.95NGVD291OUSGSSA
1996-09-1014:15 UTCm62611 56.82NAVD881OUSGSSA
1996-09-1014:15 UTCm7201948.85  1OUSGSSA
1996-12-1214:00 UTCm62610 58.75NGVD291OUSGSSA
1996-12-1214:00 UTCm62611 57.62NAVD881OUSGSSA
1996-12-1214:00 UTCm7201948.05  1OUSGSSA

Explanation
SectionCodeDescription
Water-level date-time accuracymDate is accurate to the Minute
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.
Measuring agencyUSGSU.S. Geological Survey
Source of measurementSMeasured by personnel of reporting agency.
Water-level approval statusAApproved for publication -- Processing and review completed.