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Groundwater levels for the Nation

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USGS 404707073433302 N 12470. 1

Nassau County, New York
Latitude  40°47'07.4", Longitude  73°43'31.8" NAD83
Land-surface elevation 109.5 feet above NGVD29
The depth of the well is 70 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.
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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
1994-05-2716:29 UTCm62610 54.49NGVD291OUSGSSA
1994-05-2716:29 UTCm62611 53.40NAVD881OUSGSSA
1994-05-2716:29 UTCm7201955.01  1OUSGSSA
1994-06-0819:54 UTCm62610 49.82NGVD291OUSGSSA
1994-06-0819:54 UTCm62611 48.73NAVD881OUSGSSA
1994-06-0819:54 UTCm7201959.68  1OUSGSSA
1994-09-2014:23 UTCm62610 49.21NGVD291OUSGSSA
1994-09-2014:23 UTCm62611 48.12NAVD881OUSGSSA
1994-09-2014:23 UTCm7201960.29  1OUSGSSA
1994-12-1618:02 UTCm62610 49.28NGVD291OUSGSSA
1994-12-1618:02 UTCm62611 48.19NAVD881OUSGSSA
1994-12-1618:02 UTCm7201960.22  1OUSGSSA
1995-03-1518:12 UTCm62610 49.43NGVD291OUSGSSA
1995-03-1518:12 UTCm62611 48.34NAVD881OUSGSSA
1995-03-1518:12 UTCm7201960.07  1OUSGSSA
1995-06-1414:09 UTCm62610 49.26NGVD291OUSGSSA
1995-06-1414:09 UTCm62611 48.17NAVD881OUSGSSA
1995-06-1414:09 UTCm7201960.24  1OUSGSSA
1995-08-2413:13 UTCm62610 49.40NGVD291OUSGSSA
1995-08-2413:13 UTCm62611 48.31NAVD881OUSGSSA
1995-08-2413:13 UTCm7201960.10  1OUSGSSA
1995-12-0414:32 UTCm62610 49.39NGVD291OUSGSSA
1995-12-0414:32 UTCm62611 48.30NAVD881OUSGSSA
1995-12-0414:32 UTCm7201960.11  1OUSGSSA
1996-03-2214:14 UTCm62610 49.33NGVD291OUSGSSA
1996-03-2214:14 UTCm62611 48.24NAVD881OUSGSSA
1996-03-2214:14 UTCm7201960.17  1OUSGSSA
1996-05-1613:13 UTCm62610 49.32NGVD291OUSGSSA
1996-05-1613:13 UTCm62611 48.23NAVD881OUSGSSA
1996-05-1613:13 UTCm7201960.18  1OUSGSSA
1996-09-1013:23 UTCm62610 49.26NGVD291OUSGSSA
1996-09-1013:23 UTCm62611 48.17NAVD881OUSGSSA
1996-09-1013:23 UTCm7201960.24  1OUSGSSA
2000-03-2318:25 UTCm62610 49.49NGVD291TUSGSSA
2000-03-2318:25 UTCm62611 48.40NAVD881TUSGSSA
2000-03-2318:25 UTCm7201960.01  1TUSGSSA
2001-03-2113:49 UTCm62610 45.13NGVD294SUSGSSA
2001-03-2113:49 UTCm62611 44.04NAVD884SUSGSSA
2001-03-2113:49 UTCm7201964.37  4SUSGSSA
2002-03-2115:56 UTCm62610 44.17NGVD291SUSGSSA
2002-03-2115:56 UTCm62611 43.08NAVD881SUSGSSA
2002-03-2115:56 UTCm7201965.33  1SUSGSSA
2005-03-2216:34 UTCm62610 42.53NGVD291SUSGSSA
2005-03-2216:34 UTCm62611 41.44NAVD881SUSGSSA
2005-03-2216:34 UTCm7201966.97  1SUSGSSA
2020-10-2615:03 UTCm62610 38.99NGVD291VUSGSSP
2020-10-2615:03 UTCm62611 37.90NAVD881VUSGSSP
2020-10-2615:03 UTCm7201970.51  1VUSGSSP
2022-05-1615:26 UTCm62610  NGVD29DVUSGSSP
2022-05-1615:26 UTCm62611  NAVD88DVUSGSSP
2022-05-1615:26 UTCm72019   DVUSGSSP
2024-05-1018:44 UTCm62610  NGVD29DVUSGSSP
2024-05-1018:44 UTCm62611  NAVD88DVUSGSSP
2024-05-1018:44 UTCm72019   DVUSGSSP

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
Status4Groundwater level affected by tide
StatusDDry
Method of measurementOObserved.
Method of measurementSSteel-tape measurement.
Method of measurementTElectric-tape measurement.
Method of measurementVCalibrated electric-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.
Water-level approval statusPProvisional data subject to revision.