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Groundwater levels for the Nation

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  • 405320073362901
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USGS 405320073362901 N 1171. 1

Nassau County, New York
Latitude  40°53'20", Longitude  73°36'29" NAD27
Land-surface elevation 68.0 feet above NGVD29
The depth of the well is 41 feet below land surface.
The depth of the hole is 41 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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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
1938-10-1116:00 UTCm62610 65.06NGVD291OUSGSSA
1938-10-1116:00 UTCm62611 63.98NAVD881OUSGSSA
1938-10-1116:00 UTCm720192.94  1OUSGSSA
1938-12-0718:36 UTCm62610 64.77NGVD291OUSGSSA
1938-12-0718:36 UTCm62611 63.69NAVD881OUSGSSA
1938-12-0718:36 UTCm720193.23  1OUSGSSA
1939-08-2416:36 UTCm62610 64.18NGVD291OUSGSSA
1939-08-2416:36 UTCm62611 63.10NAVD881OUSGSSA
1939-08-2416:36 UTCm720193.82  1OUSGSSA
1940-03-1514:40 UTCm62610 64.01NGVD291OUSGSSA
1940-03-1514:40 UTCm62611 62.93NAVD881OUSGSSA
1940-03-1514:40 UTCm720193.99  1OUSGSSA
1940-04-1918:45 UTCm62610 64.03NGVD291OUSGSSA
1940-04-1918:45 UTCm62611 62.95NAVD881OUSGSSA
1940-04-1918:45 UTCm720193.97  1OUSGSSA
1940-10-1819:58 UTCm62610 63.99NGVD291OUSGSSA
1940-10-1819:58 UTCm62611 62.91NAVD881OUSGSSA
1940-10-1819:58 UTCm720194.01  1OUSGSSA
1941-03-2119:52 UTCm62610 63.91NGVD291OUSGSSA
1941-03-2119:52 UTCm62611 62.83NAVD881OUSGSSA
1941-03-2119:52 UTCm720194.09  1OUSGSSA
1941-08-0617:40 UTCm62610 63.87NGVD291OUSGSSA
1941-08-0617:40 UTCm62611 62.79NAVD881OUSGSSA
1941-08-0617:40 UTCm720194.13  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.