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Groundwater levels for the Nation

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  • 404531073415401
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USGS 404531073415401 N 7593. 1

Nassau County, New York
Latitude  40°50'45", Longitude  73°28'30" NAD27
Land-surface elevation 253.0 feet above NGVD29
The depth of the well is 473 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
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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
1970-03-06 D62610 44.78NGVD291OUSGSSA
1970-03-06 D62611 43.72NAVD881OUSGSSA
1970-03-06 D72019208.22  1OUSGSSA
1971-03-10 D62610 45.81NGVD291OUSGSSA
1971-03-10 D62611 44.75NAVD881OUSGSSA
1971-03-10 D72019207.19  1OUSGSSA
1972-03-14 D62610 42.76NGVD291OUSGSSA
1972-03-14 D62611 41.70NAVD881OUSGSSA
1972-03-14 D72019210.24  1OUSGSSA
1974-01-1615:25 UTCm62610 50.77NGVD291OUSGSSA
1974-01-1615:25 UTCm62611 49.71NAVD881OUSGSSA
1974-01-1615:25 UTCm72019202.23  1OUSGSSA
1974-01-2116:20 UTCm62610 50.77NGVD291OUSGSSA
1974-01-2116:20 UTCm62611 49.71NAVD881OUSGSSA
1974-01-2116:20 UTCm72019202.23  1OUSGSSA
1974-01-2215:08 UTCm62610 50.62NGVD291OUSGSSA
1974-01-2215:08 UTCm62611 49.56NAVD881OUSGSSA
1974-01-2215:08 UTCm72019202.38  1OUSGSSA
1974-03-26 D62610 50.42NGVD291OUSGSSA
1974-03-26 D62611 49.36NAVD881OUSGSSA
1974-03-26 D72019202.58  1OUSGSSA
1975-03-21 D62610 48.84NGVD291OUSGSSA
1975-03-21 D62611 47.78NAVD881OUSGSSA
1975-03-21 D72019204.16  1OUSGSSA
1976-03-19 D62610 50.07NGVD291OUSGSSA
1976-03-19 D62611 49.01NAVD881OUSGSSA
1976-03-19 D72019202.93  1OUSGSSA
1977-03-29 D62610 45.44NGVD291OUSGSSA
1977-03-29 D62611 44.38NAVD881OUSGSSA
1977-03-29 D72019207.56  1OUSGSSA
1978-03-21 D62610 44.85NGVD291OUSGSSA
1978-03-21 D62611 43.79NAVD881OUSGSSA
1978-03-21 D72019208.15  1OUSGSSA
1979-03-16 D62610 44.31NGVD291OUSGSSA
1979-03-16 D62611 43.25NAVD881OUSGSSA
1979-03-16 D72019208.69  1OUSGSSA
1980-03-13 D62610 39.99NGVD291OUSGSSA
1980-03-13 D62611 38.93NAVD881OUSGSSA
1980-03-13 D72019213.01  1OUSGSSA
1981-03-10 D62610 20.07NGVD291OUSGSSA
1981-03-10 D62611 19.01NAVD881OUSGSSA
1981-03-10 D72019232.93  1OUSGSSA
1988-05-0514:00 UTCm62610 46.35NGVD291OUSGSSA
1988-05-0514:00 UTCm62611 45.29NAVD881OUSGSSA
1988-05-0514:00 UTCm72019206.65  1OUSGSSA
1989-02-1614:35 UTCm62610 38.64NGVD291OUSGSSA
1989-02-1614:35 UTCm62611 37.58NAVD881OUSGSSA
1989-02-1614:35 UTCm72019214.36  1OUSGSSA
1990-04-0613:05 UTCm62610 49.53NGVD291OUSGSSA
1990-04-0613:05 UTCm62611 48.47NAVD881OUSGSSA
1990-04-0613:05 UTCm72019203.47  1OUSGSSA
1991-04-0315:35 UTCm62610 48.63NGVD291OUSGSSA
1991-04-0315:35 UTCm62611 47.57NAVD881OUSGSSA
1991-04-0315:35 UTCm72019204.37  1OUSGSSA
1992-03-2414:23 UTCm62610 48.99NGVD291OUSGSSA
1992-03-2414:23 UTCm62611 47.93NAVD881OUSGSSA
1992-03-2414:23 UTCm72019204.01  1OUSGSSA
1993-04-1313:50 UTCm62610 46.56NGVD291OUSGSSA
1993-04-1313:50 UTCm62611 45.50NAVD881OUSGSSA
1993-04-1313:50 UTCm72019206.44  1OUSGSSA
1994-05-0614:12 UTCm62610 45.67NGVD291OUSGSSA
1994-05-0614:12 UTCm62611 44.61NAVD881OUSGSSA
1994-05-0614:12 UTCm72019207.33  1OUSGSSA
1997-04-3015:00 UTCm62610 45.85NGVD291OUSGSSA
1997-04-3015:00 UTCm62611 44.79NAVD881OUSGSSA
1997-04-3015:00 UTCm72019207.15  1OUSGSSA
1998-03-3114:12 UTCm62610 45.51NGVD291SUSGSSA
1998-03-3114:12 UTCm62611 44.45NAVD881SUSGSSA
1998-03-3114:12 UTCm72019207.49  1SUSGSSA

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.
Method of measurementSSteel-tape measurement.
Measuring agencyUSGSU.S. Geological Survey
Source of measurementSMeasured by personnel of reporting agency.
Water-level approval statusAApproved for publication -- Processing and review completed.