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Groundwater levels for the Nation

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Agency code = usgs
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  • 405059073384101
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USGS 405059073384101 N 7857. 1

Nassau County, New York
Latitude  40°51'00", Longitude  73°38'42" NAD27
Land-surface elevation 188.0 feet above NGVD29
The depth of the well is 614 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
Graph of data
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
1970-12-16 D62610 11.50NGVD291OUSGSSA
1970-12-16 D62611 10.42NAVD881OUSGSSA
1970-12-16 D72019176.50  1OUSGSSA
1972-01-06 D62610 12.84NGVD291OUSGSSA
1972-01-06 D62611 11.76NAVD881OUSGSSA
1972-01-06 D72019175.16  1OUSGSSA
1973-01-16 D62610 13.32NGVD291OUSGSSA
1973-01-16 D62611 12.24NAVD881OUSGSSA
1973-01-16 D72019174.68  1OUSGSSA
1974-01-28 D62610 11.83NGVD291OUSGSSA
1974-01-28 D62611 10.75NAVD881OUSGSSA
1974-01-28 D72019176.17  1OUSGSSA
1975-01-14 D62610 12.45NGVD291OUSGSSA
1975-01-14 D62611 11.37NAVD881OUSGSSA
1975-01-14 D72019175.55  1OUSGSSA
1976-01-22 D62610 5.84NGVD291OUSGSSA
1976-01-22 D62611 4.76NAVD881OUSGSSA
1976-01-22 D72019182.16  1OUSGSSA
1978-01-2615:25 UTCm62610 11.61NGVD291OUSGSSA
1978-01-2615:25 UTCm62611 10.53NAVD881OUSGSSA
1978-01-2615:25 UTCm72019176.39  1OUSGSSA
1979-01-1515:23 UTCm62610 13.32NGVD291OUSGSSA
1979-01-1515:23 UTCm62611 12.24NAVD881OUSGSSA
1979-01-1515:23 UTCm72019174.68  1OUSGSSA
1982-01-0613:36 UTCm62610 15.31NGVD291OUSGSSA
1982-01-0613:36 UTCm62611 14.23NAVD881OUSGSSA
1982-01-0613:36 UTCm72019172.69  1OUSGSSA
1982-01-0613:44 UTCm62610 15.36NGVD291OUSGSSA
1982-01-0613:44 UTCm62611 14.28NAVD881OUSGSSA
1982-01-0613:44 UTCm72019172.64  1OUSGSSA
1983-01-1014:30 UTCm62610 15.19NGVD291OUSGSSA
1983-01-1014:30 UTCm62611 14.11NAVD881OUSGSSA
1983-01-1014:30 UTCm72019172.81  1OUSGSSA
1984-01-1613:15 UTCm62610 14.69NGVD291OUSGSSA
1984-01-1613:15 UTCm62611 13.61NAVD881OUSGSSA
1984-01-1613:15 UTCm72019173.31  1OUSGSSA
1985-01-0113:38 UTCm62610 17.68NGVD291OUSGSSA
1985-01-0113:38 UTCm62611 16.60NAVD881OUSGSSA
1985-01-0113:38 UTCm72019170.32  1OUSGSSA
1986-02-0613:15 UTCm62610 15.65NGVD291OUSGSSA
1986-02-0613:15 UTCm62611 14.57NAVD881OUSGSSA
1986-02-0613:15 UTCm72019172.35  1OUSGSSA
1987-01-2714:25 UTCm62610 9.65NGVD294OUSGSSA
1987-01-2714:25 UTCm62611 8.57NAVD884OUSGSSA
1987-01-2714:25 UTCm72019178.35  4OUSGSSA
1995-05-1113:48 UTCm62610 17.03NGVD294OUSGSSA
1995-05-1113:48 UTCm62611 15.95NAVD884OUSGSSA
1995-05-1113:48 UTCm72019170.97  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
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.