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Groundwater levels for the Nation

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Agency code = usgs
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  • 404607073430802
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USGS 404607073430802 N 12455. 1

Nassau County, New York
Latitude  40°46'07", Longitude  73°43'08" NAD27
Land-surface elevation 217 feet above NAVD88
The depth of the well is 200 feet below land surface.
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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
1994-06-0815:42 UTCm62610 38.26NGVD291OUSGSSA
1994-06-0815:42 UTCm62611 37.17NAVD881OUSGSSA
1994-06-0815:42 UTCm72019179.83  1OUSGSSA
1994-09-2013:44 UTCm62610 34.57NGVD291OUSGSSA
1994-09-2013:44 UTCm62611 33.48NAVD881OUSGSSA
1994-09-2013:44 UTCm72019183.52  1OUSGSSA
1994-12-1619:38 UTCm62610 33.09NGVD291OUSGSSA
1994-12-1619:38 UTCm62611 32.00NAVD881OUSGSSA
1994-12-1619:38 UTCm72019185.00  1OUSGSSA
1995-03-1513:45 UTCm62610 35.24NGVD291OUSGSSA
1995-03-1513:45 UTCm62611 34.15NAVD881OUSGSSA
1995-03-1513:45 UTCm72019182.85  1OUSGSSA
1995-06-1413:30 UTCm62610 34.30NGVD291OUSGSSA
1995-06-1413:30 UTCm62611 33.21NAVD881OUSGSSA
1995-06-1413:30 UTCm72019183.79  1OUSGSSA
1995-08-3017:50 UTCm62610 35.21NGVD291OUSGSSA
1995-08-3017:50 UTCm62611 34.12NAVD881OUSGSSA
1995-08-3017:50 UTCm72019182.88  1OUSGSSA
1996-05-1612:30 UTCm62610 35.22NGVD291OUSGSSA
1996-05-1612:30 UTCm62611 34.13NAVD881OUSGSSA
1996-05-1612:30 UTCm72019182.87  1OUSGSSA
1997-03-1016:04 UTCm62610 35.25NGVD291OUSGSSA
1997-03-1016:04 UTCm62611 34.16NAVD881OUSGSSA
1997-03-1016:04 UTCm72019182.84  1OUSGSSA
2010-04-2316:30 UTCm62610 39.58NGVD291S  A
2010-04-2316:30 UTCm62611 38.49NAVD881S  A
2010-04-2316:30 UTCm72019178.51  1S  A
2013-07-2916:15 UTCm62610 39.93NGVD291SUSGSSA
2013-07-2916:15 UTCm62611 38.84NAVD881SUSGSSA
2013-07-2916:15 UTCm72019178.16  1SUSGSSA
2014-04-1718:24 UTCm62610 38.90NGVD291SUSGSSA
2014-04-1718:24 UTCm62611 37.81NAVD881SUSGSSA
2014-04-1718:24 UTCm72019179.19  1SUSGSSA
2015-04-2514:59 UTCm62610 39.06NGVD291SUSGSSA
2015-04-2514:59 UTCm62611 37.97NAVD881SUSGSSA
2015-04-2514:59 UTCm72019179.03  1SUSGSSA
2017-04-2015:45 UTCm62610 36.57NGVD291TUSGSSA
2017-04-2015:45 UTCm62611 35.48NAVD881TUSGSSA
2017-04-2015:45 UTCm72019181.52  1TUSGSSA
2019-04-1815:57 UTCm62610 37.38NGVD291VUSGSSA
2019-04-1815:57 UTCm62611 36.29NAVD881VUSGSSA
2019-04-1815:57 UTCm72019180.71  1VUSGSSA
2020-10-2216:10 UTCm62610 38.59NGVD291VUSGSSA
2020-10-2216:10 UTCm62611 37.50NAVD881VUSGSSA
2020-10-2216:10 UTCm72019179.50  1VUSGSSA
2021-04-2218:54 UTCm62610 39.19NGVD291VUSGSSA
2021-04-2218:54 UTCm62611 38.10NAVD881VUSGSSA
2021-04-2218:54 UTCm72019178.90  1VUSGSSA
2022-05-1916:15 UTCm62610 39.87NGVD291VUSGSSA
2022-05-1916:15 UTCm62611 38.78NAVD881VUSGSSA
2022-05-1916:15 UTCm72019178.22  1VUSGSSA
2023-05-1619:22 UTCm62610 38.79NGVD291VUSGSSA
2023-05-1619:22 UTCm62611 37.70NAVD881VUSGSSA
2023-05-1619:22 UTCm72019179.30  1VUSGSSA
2024-05-1015:45 UTCm62610 39.43NGVD291VUSGSSP
2024-05-1015:45 UTCm62611 38.34NAVD881VUSGSSP
2024-05-1015:45 UTCm72019178.66  1VUSGSSP

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
Method of measurementOObserved.
Method of measurementSSteel-tape measurement.
Method of measurementTElectric-tape measurement.
Method of measurementVCalibrated electric-tape measurement.
Measuring agencyNot determined
Measuring agencyUSGSU.S. Geological Survey
Source of measurementNot determined
Source of measurementSMeasured by personnel of reporting agency.
Water-level approval statusAApproved for publication -- Processing and review completed.
Water-level approval statusPProvisional data subject to revision.