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Groundwater levels for the Nation

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USGS 404008073420902 N 9669. 1

Nassau County, New York
Latitude  40°40'08", Longitude  73°42'09" NAD27
Land-surface elevation 20.0 feet above NGVD29
The depth of the well is 32 feet below land surface.
The depth of the hole is 35 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
1979-09-1220:11 UTCm62610 9.46NGVD291OUSGSSA
1979-09-1220:11 UTCm62611 8.36NAVD881OUSGSSA
1979-09-1220:11 UTCm7201910.54  1OUSGSSA
1979-12-0514:40 UTCm62610 8.88NGVD291OUSGSSA
1979-12-0514:40 UTCm62611 7.78NAVD881OUSGSSA
1979-12-0514:40 UTCm7201911.12  1OUSGSSA
1980-03-1819:57 UTCm62610 9.05NGVD291OUSGSSA
1980-03-1819:57 UTCm62611 7.95NAVD881OUSGSSA
1980-03-1819:57 UTCm7201910.95  1OUSGSSA
1980-05-2719:32 UTCm62610 9.98NGVD291OUSGSSA
1980-05-2719:32 UTCm62611 8.88NAVD881OUSGSSA
1980-05-2719:32 UTCm7201910.02  1OUSGSSA
1980-09-0419:12 UTCm62610 8.78NGVD291OUSGSSA
1980-09-0419:12 UTCm62611 7.68NAVD881OUSGSSA
1980-09-0419:12 UTCm7201911.22  1OUSGSSA
1980-12-1520:03 UTCm62610 7.54NGVD291OUSGSSA
1980-12-1520:03 UTCm62611 6.44NAVD881OUSGSSA
1980-12-1520:03 UTCm7201912.46  1OUSGSSA
1981-03-0419:33 UTCm62610 8.41NGVD291OUSGSSA
1981-03-0419:33 UTCm62611 7.31NAVD881OUSGSSA
1981-03-0419:33 UTCm7201911.59  1OUSGSSA
1981-06-1619:31 UTCm62610 7.69NGVD291OUSGSSA
1981-06-1619:31 UTCm62611 6.59NAVD881OUSGSSA
1981-06-1619:31 UTCm7201912.31  1OUSGSSA
1981-09-0119:49 UTCm62610 6.64NGVD291OUSGSSA
1981-09-0119:49 UTCm62611 5.54NAVD881OUSGSSA
1981-09-0119:49 UTCm7201913.36  1OUSGSSA
1982-01-0819:39 UTCm62610 7.53NGVD291OUSGSSA
1982-01-0819:39 UTCm62611 6.43NAVD881OUSGSSA
1982-01-0819:39 UTCm7201912.47  1OUSGSSA
1982-03-1619:36 UTCm62610 8.33NGVD291OUSGSSA
1982-03-1619:36 UTCm62611 7.23NAVD881OUSGSSA
1982-03-1619:36 UTCm7201911.67  1OUSGSSA
1982-07-0819:35 UTCm62610 10.11NGVD291OUSGSSA
1982-07-0819:35 UTCm62611 9.01NAVD881OUSGSSA
1982-07-0819:35 UTCm720199.89  1OUSGSSA
1982-09-0120:00 UTCm62610 9.09NGVD291OUSGSSA
1982-09-0120:00 UTCm62611 7.99NAVD881OUSGSSA
1982-09-0120:00 UTCm7201910.91  1OUSGSSA
1982-12-1719:20 UTCm62610 5.94NGVD291OUSGSSA
1982-12-1719:20 UTCm62611 4.84NAVD881OUSGSSA
1982-12-1719:20 UTCm7201914.06  1OUSGSSA
1983-04-0619:35 UTCm62610 8.06NGVD291OUSGSSA
1983-04-0619:35 UTCm62611 6.96NAVD881OUSGSSA
1983-04-0619:35 UTCm7201911.94  1OUSGSSA
1983-06-17 D62610 10.13NGVD291OUSGSSA
1983-06-17 D62611 9.03NAVD881OUSGSSA
1983-06-17 D720199.87  1OUSGSSA
1983-08-11 D62610 8.53NGVD291OUSGSSA
1983-08-11 D62611 7.43NAVD881OUSGSSA
1983-08-11 D7201911.47  1OUSGSSA
1984-04-2421:17 UTCm62610 11.30NGVD291OUSGSSA
1984-04-2421:17 UTCm62611 10.20NAVD881OUSGSSA
1984-04-2421:17 UTCm720198.70  1OUSGSSA
1990-03-2616:55 UTCm62610 10.81NGVD291OUSGSSA
1990-03-2616:55 UTCm62611 9.71NAVD881OUSGSSA
1990-03-2616:55 UTCm720199.19  1OUSGSSA

Explanation
SectionCodeDescription
Water-level date-time accuracyDDate is accurate to the Day
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.