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Groundwater levels for the Nation

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USGS 404414073325302 N 9450. 1

Nassau County, New York
Latitude  40°44'14", Longitude  73°32'53" NAD27
Land-surface elevation 101.0 feet above NGVD29
The depth of the well is 105 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 Magothy Aquifer (211MAGT) 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
1980-05-14 D62610 70.86NGVD291OUSGSSA
1980-05-14 D62611 69.68NAVD881OUSGSSA
1980-05-14 D7201930.14  1OUSGSSA
1980-10-14 D62610 68.06NGVD291OUSGSSA
1980-10-14 D62611 66.88NAVD881OUSGSSA
1980-10-14 D7201932.94  1OUSGSSA
1981-01-19 D62610 66.95NGVD291OUSGSSA
1981-01-19 D62611 65.77NAVD881OUSGSSA
1981-01-19 D7201934.05  1OUSGSSA
1981-02-18 D62610 66.60NGVD291OUSGSSA
1981-02-18 D62611 65.42NAVD881OUSGSSA
1981-02-18 D7201934.40  1OUSGSSA
1981-03-23 D62610 66.45NGVD291OUSGSSA
1981-03-23 D62611 65.27NAVD881OUSGSSA
1981-03-23 D7201934.55  1OUSGSSA
1981-04-27 D62610 66.90NGVD291OUSGSSA
1981-04-27 D62611 65.72NAVD881OUSGSSA
1981-04-27 D7201934.10  1OUSGSSA
1981-05-26 D62610 66.69NGVD291OUSGSSA
1981-05-26 D62611 65.51NAVD881OUSGSSA
1981-05-26 D7201934.31  1OUSGSSA
1981-06-2316:15 UTCm62610 66.31NGVD291OUSGSSA
1981-06-2316:15 UTCm62611 65.13NAVD881OUSGSSA
1981-06-2316:15 UTCm7201934.69  1OUSGSSA
1981-07-2717:30 UTCm62610 66.23NGVD291OUSGSSA
1981-07-2717:30 UTCm62611 65.05NAVD881OUSGSSA
1981-07-2717:30 UTCm7201934.77  1OUSGSSA
1981-08-2415:45 UTCm62610 65.74NGVD291OUSGSSA
1981-08-2415:45 UTCm62611 64.56NAVD881OUSGSSA
1981-08-2415:45 UTCm7201935.26  1OUSGSSA
1981-10-0516:45 UTCm62610 65.31NGVD291OUSGSSA
1981-10-0516:45 UTCm62611 64.13NAVD881OUSGSSA
1981-10-0516:45 UTCm7201935.69  1OUSGSSA
1981-11-0216:20 UTCm62610 64.98NGVD291OUSGSSA
1981-11-0216:20 UTCm62611 63.80NAVD881OUSGSSA
1981-11-0216:20 UTCm7201936.02  1OUSGSSA
1981-12-0315:15 UTCm62610 64.73NGVD291OUSGSSA
1981-12-0315:15 UTCm62611 63.55NAVD881OUSGSSA
1981-12-0315:15 UTCm7201936.27  1OUSGSSA
1982-01-0515:30 UTCm62610 64.86NGVD291OUSGSSA
1982-01-0515:30 UTCm62611 63.68NAVD881OUSGSSA
1982-01-0515:30 UTCm7201936.14  1OUSGSSA
1982-02-0816:15 UTCm62610 65.79NGVD291OUSGSSA
1982-02-0816:15 UTCm62611 64.61NAVD881OUSGSSA
1982-02-0816:15 UTCm7201935.21  1OUSGSSA
1982-03-1714:45 UTCm62610 65.88NGVD291OUSGSSA
1982-03-1714:45 UTCm62611 64.70NAVD881OUSGSSA
1982-03-1714:45 UTCm7201935.12  1OUSGSSA
1982-04-1914:45 UTCm62610 65.69NGVD291OUSGSSA
1982-04-1914:45 UTCm62611 64.51NAVD881OUSGSSA
1982-04-1914:45 UTCm7201935.31  1OUSGSSA
1982-05-2616:00 UTCm62610 65.69NGVD291OUSGSSA
1982-05-2616:00 UTCm62611 64.51NAVD881OUSGSSA
1982-05-2616:00 UTCm7201935.31  1OUSGSSA
1982-07-0114:15 UTCm62610 66.13NGVD291OUSGSSA
1982-07-0114:15 UTCm62611 64.95NAVD881OUSGSSA
1982-07-0114:15 UTCm7201934.87  1OUSGSSA
1982-08-1314:30 UTCm62610 65.59NGVD291OUSGSSA
1982-08-1314:30 UTCm62611 64.41NAVD881OUSGSSA
1982-08-1314:30 UTCm7201935.41  1OUSGSSA
1982-09-2815:30 UTCm62610 64.79NGVD291OUSGSSA
1982-09-2815:30 UTCm62611 63.61NAVD881OUSGSSA
1982-09-2815:30 UTCm7201936.21  1OUSGSSA
1982-09-2913:30 UTCm62610 64.73NGVD291OUSGSSA
1982-09-2913:30 UTCm62611 63.55NAVD881OUSGSSA
1982-09-2913:30 UTCm7201936.27  1OUSGSSA
1982-11-0118:30 UTCm62610 64.89NGVD291OUSGSSA
1982-11-0118:30 UTCm62611 63.71NAVD881OUSGSSA
1982-11-0118:30 UTCm7201936.11  1OUSGSSA
1982-12-0313:00 UTCm62610 63.79NGVD291OUSGSSA
1982-12-0313:00 UTCm62611 62.61NAVD881OUSGSSA
1982-12-0313:00 UTCm7201937.21  1OUSGSSA
1983-01-1317:45 UTCm62610 63.97NGVD291OUSGSSA
1983-01-1317:45 UTCm62611 62.79NAVD881OUSGSSA
1983-01-1317:45 UTCm7201937.03  1OUSGSSA
1983-02-2516:00 UTCm62610 63.16NGVD291OUSGSSA
1983-02-2516:00 UTCm62611 61.98NAVD881OUSGSSA
1983-02-2516:00 UTCm7201937.84  1OUSGSSA
1983-03-3018:00 UTCm62610 63.91NGVD291OUSGSSA
1983-03-3018:00 UTCm62611 62.73NAVD881OUSGSSA
1983-03-3018:00 UTCm7201937.09  1OUSGSSA
1983-05-0216:45 UTCm62610 68.11NGVD291OUSGSSA
1983-05-0216:45 UTCm62611 66.93NAVD881OUSGSSA
1983-05-0216:45 UTCm7201932.89  1OUSGSSA
1983-05-0617:00 UTCm62610 68.51NGVD291OUSGSSA
1983-05-0617:00 UTCm62611 67.33NAVD881OUSGSSA
1983-05-0617:00 UTCm7201932.49  1OUSGSSA
1983-06-0615:45 UTCm62610 69.06NGVD291OUSGSSA
1983-06-0615:45 UTCm62611 67.88NAVD881OUSGSSA
1983-06-0615:45 UTCm7201931.94  1OUSGSSA
1983-07-1115:14 UTCm62610 68.12NGVD291OUSGSSA
1983-07-1115:14 UTCm62611 66.94NAVD881OUSGSSA
1983-07-1115:14 UTCm7201932.88  1OUSGSSA
1983-08-1516:30 UTCm62610 68.58NGVD291OUSGSSA
1983-08-1516:30 UTCm62611 67.40NAVD881OUSGSSA
1983-08-1516:30 UTCm7201932.42  1OUSGSSA
1983-09-2115:40 UTCm62610 67.10NGVD291OUSGSSA
1983-09-2115:40 UTCm62611 65.92NAVD881OUSGSSA
1983-09-2115:40 UTCm7201933.90  1OUSGSSA
1983-10-2715:10 UTCm62610 67.51NGVD291OUSGSSA
1983-10-2715:10 UTCm62611 66.33NAVD881OUSGSSA
1983-10-2715:10 UTCm7201933.49  1OUSGSSA
1983-12-0118:30 UTCm62610 67.92NGVD291OUSGSSA
1983-12-0118:30 UTCm62611 66.74NAVD881OUSGSSA
1983-12-0118:30 UTCm7201933.08  1OUSGSSA
1984-01-0918:20 UTCm62610 69.50NGVD291OUSGSSA
1984-01-0918:20 UTCm62611 68.32NAVD881OUSGSSA
1984-01-0918:20 UTCm7201931.50  1OUSGSSA
1984-02-0116:10 UTCm62610 68.13NGVD291OUSGSSA
1984-02-0116:10 UTCm62611 66.95NAVD881OUSGSSA
1984-02-0116:10 UTCm7201932.87  1OUSGSSA
1984-04-0214:15 UTCm62610 68.92NGVD291OUSGSSA
1984-04-0214:15 UTCm62611 67.74NAVD881OUSGSSA
1984-04-0214:15 UTCm7201932.08  1OUSGSSA
1984-05-2416:25 UTCm62610 70.31NGVD291OUSGSSA
1984-05-2416:25 UTCm62611 69.13NAVD881OUSGSSA
1984-05-2416:25 UTCm7201930.69  1OUSGSSA
1984-07-2416:15 UTCm62610 71.89NGVD291OUSGSSA
1984-07-2416:15 UTCm62611 70.71NAVD881OUSGSSA
1984-07-2416:15 UTCm7201929.11  1OUSGSSA
1984-09-2517:30 UTCm62610 70.28NGVD291OUSGSSA
1984-09-2517:30 UTCm62611 69.10NAVD881OUSGSSA
1984-09-2517:30 UTCm7201930.72  1OUSGSSA
1984-11-0719:00 UTCm62610 68.94NGVD291OUSGSSA
1984-11-0719:00 UTCm62611 67.76NAVD881OUSGSSA
1984-11-0719:00 UTCm7201932.06  1OUSGSSA
1985-01-1415:24 UTCm62610 67.31NGVD291OUSGSSA
1985-01-1415:24 UTCm62611 66.13NAVD881OUSGSSA
1985-01-1415:24 UTCm7201933.69  1OUSGSSA
1985-03-1316:00 UTCm62610 66.16NGVD291OUSGSSA
1985-03-1316:00 UTCm62611 64.98NAVD881OUSGSSA
1985-03-1316:00 UTCm7201934.84  1OUSGSSA
1985-07-0914:15 UTCm62610 64.83NGVD291OUSGSSA
1985-07-0914:15 UTCm62611 63.65NAVD881OUSGSSA
1985-07-0914:15 UTCm7201936.17  1OUSGSSA
1987-03-0320:15 UTCm62610 61.79NGVD291OUSGSSA
1987-03-0320:15 UTCm62611 60.61NAVD881OUSGSSA
1987-03-0320:15 UTCm7201939.21  1OUSGSSA
1987-05-1915:00 UTCm62610 62.71NGVD291OUSGSSA
1987-05-1915:00 UTCm62611 61.53NAVD881OUSGSSA
1987-05-1915:00 UTCm7201938.29  1OUSGSSA
1987-07-2918:06 UTCm62610 61.71NGVD291OUSGSSA
1987-07-2918:06 UTCm62611 60.53NAVD881OUSGSSA
1987-07-2918:06 UTCm7201939.29  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.