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Groundwater levels for the Nation

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USGS 405106073430601 N 8313. 1

Nassau County, New York
Latitude  40°51'08", Longitude  73°43'04" NAD27
Land-surface elevation 49.0 feet above NGVD29
The depth of the well is 168 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
1975-01-1415:30 UTCm62610 7.36NGVD291OUSGSSA
1975-01-1415:30 UTCm62611 6.27NAVD881OUSGSSA
1975-01-1415:30 UTCm7201941.64  1OUSGSSA
1977-01-2418:20 UTCm62610 6.10NGVD291OUSGSSA
1977-01-2418:20 UTCm62611 5.01NAVD881OUSGSSA
1977-01-2418:20 UTCm7201942.90  1OUSGSSA
1978-01-2419:00 UTCm62610 -2.15NGVD291OUSGSSA
1978-01-2419:00 UTCm62611 -3.24NAVD881OUSGSSA
1978-01-2419:00 UTCm7201951.15  1OUSGSSA
1979-01-1900:57 UTCm62610 7.01NGVD291OUSGSSA
1979-01-1900:57 UTCm62611 5.92NAVD881OUSGSSA
1979-01-1900:57 UTCm7201941.99  1OUSGSSA
1980-01-2318:10 UTCm62610 -0.32NGVD291OUSGSSA
1980-01-2318:10 UTCm62611 -1.41NAVD881OUSGSSA
1980-01-2318:10 UTCm7201949.32  1OUSGSSA
1980-01-2913:20 UTCm62610 4.50NGVD291OUSGSSA
1980-01-2913:20 UTCm62611 3.41NAVD881OUSGSSA
1980-01-2913:20 UTCm7201944.50  1OUSGSSA
1981-01-1613:10 UTCm62610 6.35NGVD291OUSGSSA
1981-01-1613:10 UTCm62611 5.26NAVD881OUSGSSA
1981-01-1613:10 UTCm7201942.65  1OUSGSSA
1982-01-0813:42 UTCm62610 4.97NGVD291OUSGSSA
1982-01-0813:42 UTCm62611 3.88NAVD881OUSGSSA
1982-01-0813:42 UTCm7201944.03  1OUSGSSA
1982-01-0813:47 UTCm62610 4.86NGVD291OUSGSSA
1982-01-0813:47 UTCm62611 3.77NAVD881OUSGSSA
1982-01-0813:47 UTCm7201944.14  1OUSGSSA
1983-01-1415:50 UTCm62610 5.93NGVD294OUSGSSA
1983-01-1415:50 UTCm62611 4.84NAVD884OUSGSSA
1983-01-1415:50 UTCm7201943.07  4OUSGSSA
1984-01-0416:22 UTCm62610 7.39NGVD294OUSGSSA
1984-01-0416:22 UTCm62611 6.30NAVD884OUSGSSA
1984-01-0416:22 UTCm7201941.61  4OUSGSSA
1985-01-0816:14 UTCm62610 7.61NGVD294OUSGSSA
1985-01-0816:14 UTCm62611 6.52NAVD884OUSGSSA
1985-01-0816:14 UTCm7201941.39  4OUSGSSA

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
Status4Groundwater level affected by tide
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.