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Groundwater levels for the Nation

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Agency code = usgs
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  • 404342073380501
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USGS 404342073380501 N 9943. 1

Nassau County, New York
Latitude  40°43'42", Longitude  73°38'05" NAD27
Land-surface elevation 91.0 feet above NGVD29
The depth of the well is 69 feet below land surface.
The depth of the hole is 69 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
1982-12-1516:43 UTCm62610 46.55NGVD291OUSGSSA
1982-12-1516:43 UTCm62611 45.41NAVD881OUSGSSA
1982-12-1516:43 UTCm7201944.45  1OUSGSSA
1983-03-2817:00 UTCm62610 46.10NGVD291OUSGSSA
1983-03-2817:00 UTCm62611 44.96NAVD881OUSGSSA
1983-03-2817:00 UTCm7201944.90  1OUSGSSA
1983-03-3117:38 UTCm62610 46.15NGVD291OUSGSSA
1983-03-3117:38 UTCm62611 45.01NAVD881OUSGSSA
1983-03-3117:38 UTCm7201944.85  1OUSGSSA
1983-04-0516:47 UTCm62610 50.15NGVD291OUSGSSA
1983-04-0516:47 UTCm62611 49.01NAVD881OUSGSSA
1983-04-0516:47 UTCm7201940.85  1OUSGSSA
1983-06-1516:50 UTCm62610 52.64NGVD291OUSGSSA
1983-06-1516:50 UTCm62611 51.50NAVD881OUSGSSA
1983-06-1516:50 UTCm7201938.36  1OUSGSSA
1983-08-05 D62610 47.91NGVD291OUSGSSA
1983-08-05 D62611 46.77NAVD881OUSGSSA
1983-08-05 D7201943.09  1OUSGSSA
1983-08-3122:33 UTCm62610 50.44NGVD291OUSGSSA
1983-08-3122:33 UTCm62611 49.30NAVD881OUSGSSA
1983-08-3122:33 UTCm7201940.56  1OUSGSSA
1984-04-1019:05 UTCm62610 52.33NGVD291OUSGSSA
1984-04-1019:05 UTCm62611 51.19NAVD881OUSGSSA
1984-04-1019:05 UTCm7201938.67  1OUSGSSA
1984-04-1216:43 UTCm62610 52.39NGVD291OUSGSSA
1984-04-1216:43 UTCm62611 51.25NAVD881OUSGSSA
1984-04-1216:43 UTCm7201938.61  1OUSGSSA
1984-04-2515:18 UTCm62610 53.40NGVD291OUSGSSA
1984-04-2515:18 UTCm62611 52.26NAVD881OUSGSSA
1984-04-2515:18 UTCm7201937.60  1OUSGSSA
1984-08-0818:53 UTCm62610 57.47NGVD291OUSGSSA
1984-08-0818:53 UTCm62611 56.33NAVD881OUSGSSA
1984-08-0818:53 UTCm7201933.53  1OUSGSSA
1985-05-1014:51 UTCm62610 51.69NGVD291OUSGSSA
1985-05-1014:51 UTCm62611 50.55NAVD881OUSGSSA
1985-05-1014:51 UTCm7201939.31  1OUSGSSA
1987-09-1515:45 UTCm62610 48.37NGVD291OUSGSSA
1987-09-1515:45 UTCm62611 47.23NAVD881OUSGSSA
1987-09-1515:45 UTCm7201942.63  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.