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Groundwater levels for the Nation

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USGS 404330073353002 N 9803. 1

Nassau County, New York
Latitude  40°43'30", Longitude  73°35'30" NAD27
Land-surface elevation 83.0 feet above NGVD29
The depth of the well is 62 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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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
1982-04-1417:18 UTCm62610 54.13NGVD291OUSGSSA
1982-04-1417:18 UTCm62611 52.96NAVD881OUSGSSA
1982-04-1417:18 UTCm7201928.87  1OUSGSSA
1982-08-1213:33 UTCm62610 54.07NGVD291OUSGSSA
1982-08-1213:33 UTCm62611 52.90NAVD881OUSGSSA
1982-08-1213:33 UTCm7201928.93  1OUSGSSA
1982-08-1913:40 UTCm62610 53.84NGVD291OUSGSSA
1982-08-1913:40 UTCm62611 52.67NAVD881OUSGSSA
1982-08-1913:40 UTCm7201929.16  1OUSGSSA
1983-03-3116:22 UTCm62610 53.18NGVD291OUSGSSA
1983-03-3116:22 UTCm62611 52.01NAVD881OUSGSSA
1983-03-3116:22 UTCm7201929.82  1OUSGSSA
1984-04-2516:10 UTCm62610 56.08NGVD291OUSGSSA
1984-04-2516:10 UTCm62611 54.91NAVD881OUSGSSA
1984-04-2516:10 UTCm7201926.92  1OUSGSSA
1984-05-0215:00 UTCm62610 56.24NGVD291OUSGSSA
1984-05-0215:00 UTCm62611 55.07NAVD881OUSGSSA
1984-05-0215:00 UTCm7201926.76  1OUSGSSA
1984-05-1518:00 UTCm62610 56.17NGVD291OUSGSSA
1984-05-1518:00 UTCm62611 55.00NAVD881OUSGSSA
1984-05-1518:00 UTCm7201926.83  1OUSGSSA
1987-05-2116:40 UTCm62610 54.12NGVD291OUSGSSA
1987-05-2116:40 UTCm62611 52.95NAVD881OUSGSSA
1987-05-2116:40 UTCm7201928.88  1OUSGSSA
1987-07-2814:15 UTCm62610 53.77NGVD291OUSGSSA
1987-07-2814:15 UTCm62611 52.60NAVD881OUSGSSA
1987-07-2814:15 UTCm7201929.23  1OUSGSSA
1987-10-0116:45 UTCm62610 52.66NGVD291OUSGSSA
1987-10-0116:45 UTCm62611 51.49NAVD881OUSGSSA
1987-10-0116:45 UTCm7201930.34  1OUSGSSA
1988-06-0814:50 UTCm62610 51.52NGVD291OUSGSSA
1988-06-0814:50 UTCm62611 50.35NAVD881OUSGSSA
1988-06-0814:50 UTCm7201931.48  1OUSGSSA
1988-06-0918:42 UTCm62610 51.56NGVD291OUSGSSA
1988-06-0918:42 UTCm62611 50.39NAVD881OUSGSSA
1988-06-0918:42 UTCm7201931.44  1OUSGSSA
1988-07-0513:51 UTCm62610 51.20NGVD291OUSGSSA
1988-07-0513:51 UTCm62611 50.03NAVD881OUSGSSA
1988-07-0513:51 UTCm7201931.80  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.