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Groundwater levels for the Nation

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Agency code = usgs
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  • 404942073414403
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USGS 404942073414403 N 5530. 2

Nassau County, New York
Latitude  40°49'42", Longitude  73°41'44" NAD27
Land-surface elevation 61.1 feet above NGVD29
The depth of the well is 382 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 Lloyd Aquifer (211LLYD) local aquifer.
Output formats
Table of data
Tab-separated data
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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
1957-03-29 D62610 54.64NGVD291OUSGSSA
1957-03-29 D62611 53.55NAVD881OUSGSSA
1957-03-29 D720196.46  1OUSGSSA
1964-03-12 D62610 5.02NGVD291OUSGSSA
1964-03-12 D62611 3.93NAVD881OUSGSSA
1964-03-12 D7201956.08  1OUSGSSA
1964-12-08 D62610 48.82NGVD291OUSGSSA
1964-12-08 D62611 47.73NAVD881OUSGSSA
1964-12-08 D7201912.28  1OUSGSSA
1974-05-2216:53 UTCm62610 0.31NGVD291OUSGSSA
1974-05-2216:53 UTCm62611 -0.78NAVD881OUSGSSA
1974-05-2216:53 UTCm7201960.79  1OUSGSSA
1981-12-16 D62610 1.95NGVD291OUSGSSA
1981-12-16 D62611 0.86NAVD881OUSGSSA
1981-12-16 D7201959.15  1OUSGSSA
1982-01-0518:30 UTCm62610 2.93NGVD291OUSGSSA
1982-01-0518:30 UTCm62611 1.84NAVD881OUSGSSA
1982-01-0518:30 UTCm7201958.17  1OUSGSSA
1982-01-0518:40 UTCm62610 2.93NGVD291OUSGSSA
1982-01-0518:40 UTCm62611 1.84NAVD881OUSGSSA
1982-01-0518:40 UTCm7201958.17  1OUSGSSA
1982-01-0615:20 UTCm62610 4.30NGVD291OUSGSSA
1982-01-0615:20 UTCm62611 3.21NAVD881OUSGSSA
1982-01-0615:20 UTCm7201956.80  1OUSGSSA
1982-01-0615:25 UTCm62610 4.30NGVD291OUSGSSA
1982-01-0615:25 UTCm62611 3.21NAVD881OUSGSSA
1982-01-0615:25 UTCm7201956.80  1OUSGSSA
1983-01-1114:37 UTCm62610 4.93NGVD294OUSGSSA
1983-01-1114:37 UTCm62611 3.84NAVD884OUSGSSA
1983-01-1114:37 UTCm7201956.17  4OUSGSSA
1984-01-0517:45 UTCm62610 3.60NGVD294OUSGSSA
1984-01-0517:45 UTCm62611 2.51NAVD884OUSGSSA
1984-01-0517:45 UTCm7201957.50  4OUSGSSA
1984-01-0517:48 UTCm62610 3.62NGVD294OUSGSSA
1984-01-0517:48 UTCm62611 2.53NAVD884OUSGSSA
1984-01-0517:48 UTCm7201957.48  4OUSGSSA
1985-01-0817:49 UTCm62610 4.78NGVD294OUSGSSA
1985-01-0817:49 UTCm62611 3.69NAVD884OUSGSSA
1985-01-0817:49 UTCm7201956.32  4OUSGSSA
1986-01-3017:50 UTCm62610 -1.56NGVD291OUSGSSA
1986-01-3017:50 UTCm62611 -2.65NAVD881OUSGSSA
1986-01-3017:50 UTCm7201962.66  1OUSGSSA
1987-01-1415:20 UTCm62610 2.23NGVD291OUSGSSA
1987-01-1415:20 UTCm62611 1.14NAVD881OUSGSSA
1987-01-1415:20 UTCm7201958.87  1OUSGSSA
1988-02-1816:30 UTCm62610 6.39NGVD294OUSGSSA
1988-02-1816:30 UTCm62611 5.30NAVD884OUSGSSA
1988-02-1816:30 UTCm7201954.71  4OUSGSSA
1988-12-2719:20 UTCm62610 2.64NGVD294OUSGSSA
1988-12-2719:20 UTCm62611 1.55NAVD884OUSGSSA
1988-12-2719:20 UTCm7201958.46  4OUSGSSA
1990-03-2816:55 UTCm62610 0.47NGVD294OUSGSSA
1990-03-2816:55 UTCm62611 -0.62NAVD884OUSGSSA
1990-03-2816:55 UTCm7201960.63  4OUSGSSA

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
Status4GWTideAffected
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.