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Groundwater levels for the Nation

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Agency code = usgs
site_no list =
  • 404525073373201
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USGS 404525073373201 N 4082. 1

Nassau County, New York
Latitude  40°45'25", Longitude  73°37'32" NAD27
Land-surface elevation 105.0 feet above NGVD29
The depth of the well is 467 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.
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
1964-12-16 D62610 63.80NGVD291OUSGSSA
1964-12-16 D62611 62.66NAVD881OUSGSSA
1964-12-16 D7201941.20  1OUSGSSA
1969-11-17 D62610 57.90NGVD291OUSGSSA
1969-11-17 D62611 56.76NAVD881OUSGSSA
1969-11-17 D7201947.10  1OUSGSSA
1970-03-02 D62610 58.50NGVD291OUSGSSA
1970-03-02 D62611 57.36NAVD881OUSGSSA
1970-03-02 D7201946.50  1OUSGSSA
1971-03-09 D62610 54.36NGVD291OUSGSSA
1971-03-09 D62611 53.22NAVD881OUSGSSA
1971-03-09 D7201950.64  1OUSGSSA
1971-03-11 D62610 57.20NGVD291OUSGSSA
1971-03-11 D62611 56.06NAVD881OUSGSSA
1971-03-11 D7201947.80  1OUSGSSA
1972-03-13 D62610 57.62NGVD291OUSGSSA
1972-03-13 D62611 56.48NAVD881OUSGSSA
1972-03-13 D7201947.38  1OUSGSSA
1973-03-20 D62610 58.50NGVD291OUSGSSA
1973-03-20 D62611 57.36NAVD881OUSGSSA
1973-03-20 D7201946.50  1OUSGSSA
1974-03-25 D62610 57.91NGVD291OUSGSSA
1974-03-25 D62611 56.77NAVD881OUSGSSA
1974-03-25 D7201947.09  1OUSGSSA
1975-03-17 D62610 61.56NGVD291OUSGSSA
1975-03-17 D62611 60.42NAVD881OUSGSSA
1975-03-17 D7201943.44  1OUSGSSA
1976-03-16 D62610 66.08NGVD291OUSGSSA
1976-03-16 D62611 64.94NAVD881OUSGSSA
1976-03-16 D7201938.92  1OUSGSSA
1977-03-21 D62610 63.26NGVD291OUSGSSA
1977-03-21 D62611 62.12NAVD881OUSGSSA
1977-03-21 D7201941.74  1OUSGSSA
1978-03-13 D62610 65.53NGVD291OUSGSSA
1978-03-13 D62611 64.39NAVD881OUSGSSA
1978-03-13 D7201939.47  1OUSGSSA
1979-03-19 D62610 65.79NGVD291OUSGSSA
1979-03-19 D62611 64.65NAVD881OUSGSSA
1979-03-19 D7201939.21  1OUSGSSA
1980-03-06 D62610 65.30NGVD291OUSGSSA
1980-03-06 D62611 64.16NAVD881OUSGSSA
1980-03-06 D7201939.70  1OUSGSSA
1981-03-06 D62610 63.62NGVD291OUSGSSA
1981-03-06 D62611 62.48NAVD881OUSGSSA
1981-03-06 D7201941.38  1OUSGSSA
1982-03-0813:20 UTCm62610 60.68NGVD291OUSGSSA
1982-03-0813:20 UTCm62611 59.54NAVD881OUSGSSA
1982-03-0813:20 UTCm7201944.32  1OUSGSSA
1983-03-0313:15 UTCm62610 58.89NGVD291OUSGSSA
1983-03-0313:15 UTCm62611 57.75NAVD881OUSGSSA
1983-03-0313:15 UTCm7201946.11  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.