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Groundwater levels for the Nation

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USGS 404446073372401 N 9962. 1

Nassau County, New York
Latitude  40°44'46", Longitude  73°37'24" NAD27
Land-surface elevation 111.0 feet above NGVD29
The depth of the well is 65 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
1982-08-1916:15 UTCm62610 61.05NGVD291OUSGSSA
1982-08-1916:15 UTCm62611 59.90NAVD881OUSGSSA
1982-08-1916:15 UTCm7201949.95  1OUSGSSA
1982-11-17 D62610 59.27NGVD291OUSGSSA
1982-11-17 D62611 58.12NAVD881OUSGSSA
1982-11-17 D7201951.73  1OUSGSSA
1983-03-3118:37 UTCm62610 59.73NGVD291OUSGSSA
1983-03-3118:37 UTCm62611 58.58NAVD881OUSGSSA
1983-03-3118:37 UTCm7201951.27  1OUSGSSA
1983-04-1420:30 UTCm62610 60.83NGVD291OUSGSSA
1983-04-1420:30 UTCm62611 59.68NAVD881OUSGSSA
1983-04-1420:30 UTCm7201950.17  1OUSGSSA
1983-08-1517:05 UTCm62610 62.02NGVD291OUSGSSA
1983-08-1517:05 UTCm62611 60.87NAVD881OUSGSSA
1983-08-1517:05 UTCm7201948.98  1OUSGSSA
1983-08-3115:40 UTCm62610 61.44NGVD291OUSGSSA
1983-08-3115:40 UTCm62611 60.29NAVD881OUSGSSA
1983-08-3115:40 UTCm7201949.56  1OUSGSSA
1984-04-0613:55 UTCm62610 64.12NGVD291OUSGSSA
1984-04-0613:55 UTCm62611 62.97NAVD881OUSGSSA
1984-04-0613:55 UTCm7201946.88  1OUSGSSA
1984-04-2515:45 UTCm62610 64.81NGVD291OUSGSSA
1984-04-2515:45 UTCm62611 63.66NAVD881OUSGSSA
1984-04-2515:45 UTCm7201946.19  1OUSGSSA
1984-08-0821:25 UTCm62610 68.03NGVD291OUSGSSA
1984-08-0821:25 UTCm62611 66.88NAVD881OUSGSSA
1984-08-0821:25 UTCm7201942.97  1OUSGSSA
1984-08-1014:15 UTCm62610 68.05NGVD291OUSGSSA
1984-08-1014:15 UTCm62611 66.90NAVD881OUSGSSA
1984-08-1014:15 UTCm7201942.95  1OUSGSSA
1985-05-1014:20 UTCm62610 64.12NGVD291OUSGSSA
1985-05-1014:20 UTCm62611 62.97NAVD881OUSGSSA
1985-05-1014:20 UTCm7201946.88  1OUSGSSA
1985-08-2216:10 UTCm62610 63.37NGVD291OUSGSSA
1985-08-2216:10 UTCm62611 62.22NAVD881OUSGSSA
1985-08-2216:10 UTCm7201947.63  1OUSGSSA
1987-10-1315:00 UTCm62610 60.42NGVD291OUSGSSA
1987-10-1315:00 UTCm62611 59.27NAVD881OUSGSSA
1987-10-1315:00 UTCm7201950.58  1OUSGSSA
1990-04-2314:00 UTCm62610 63.45NGVD291OUSGSSA
1990-04-2314:00 UTCm62611 62.30NAVD881OUSGSSA
1990-04-2314:00 UTCm7201947.55  1OUSGSSA
1991-03-2120:40 UTCm62610 64.96NGVD291OUSGSSA
1991-03-2120:40 UTCm62611 63.81NAVD881OUSGSSA
1991-03-2120:40 UTCm7201946.04  1OUSGSSA
1992-03-1621:00 UTCm62610 62.35NGVD291OUSGSSA
1992-03-1621:00 UTCm62611 61.20NAVD881OUSGSSA
1992-03-1621:00 UTCm7201948.65  1OUSGSSA
1993-03-2318:30 UTCm62610 61.58NGVD291OUSGSSA
1993-03-2318:30 UTCm62611 60.43NAVD881OUSGSSA
1993-03-2318:30 UTCm7201949.42  1OUSGSSA
1994-03-3020:30 UTCm62610 60.82NGVD291OUSGSSA
1994-03-3020:30 UTCm62611 59.67NAVD881OUSGSSA
1994-03-3020:30 UTCm7201950.18  1OUSGSSA
1995-03-1414:55 UTCm62610 58.74NGVD291OUSGSSA
1995-03-1414:55 UTCm62611 57.59NAVD881OUSGSSA
1995-03-1414:55 UTCm7201952.26  1OUSGSSA
1997-03-1119:00 UTCm62610 60.13NGVD291OUSGSSA
1997-03-1119:00 UTCm62611 58.98NAVD881OUSGSSA
1997-03-1119:00 UTCm7201950.87  1OUSGSSA
1998-03-2418:35 UTCm62610 61.85NGVD291SUSGSSA
1998-03-2418:35 UTCm62611 60.70NAVD881SUSGSSA
1998-03-2418:35 UTCm7201949.15  1SUSGSSA

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.
Method of measurementSSteel-tape measurement.
Measuring agencyUSGSU.S. Geological Survey
Source of measurementSMeasured by personnel of reporting agency.
Water-level approval statusAApproved for publication -- Processing and review completed.