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Groundwater levels for the Nation

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Agency code = usgs
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  • 404446073353002
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USGS 404446073353002 N 9406. 2

Nassau County, New York
Latitude  40°44'46", Longitude  73°35'30" NAD27
Land-surface elevation 104.0 feet above NGVD29
The depth of the well is 38 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 Glacial Aquifer, Upper (112GLCLU) 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
1978-12-28 D62610 68.40NGVD291OUSGSSA
1978-12-28 D62611 67.24NAVD881OUSGSSA
1978-12-28 D7201935.60  1OUSGSSA
1979-03-2115:20 UTCm62610 71.19NGVD291OUSGSSA
1979-03-2115:20 UTCm62611 70.03NAVD881OUSGSSA
1979-03-2115:20 UTCm7201932.81  1OUSGSSA
1979-04-1914:52 UTCm62610 71.60NGVD291OUSGSSA
1979-04-1914:52 UTCm62611 70.44NAVD881OUSGSSA
1979-04-1914:52 UTCm7201932.40  1OUSGSSA
1979-05-2409:03 UTCm62610 71.71NGVD291OUSGSSA
1979-05-2409:03 UTCm62611 70.55NAVD881OUSGSSA
1979-05-2409:03 UTCm7201932.29  1OUSGSSA
1984-10-1618:00 UTCm62610 70.26NGVD291OUSGSSA
1984-10-1618:00 UTCm62611 69.10NAVD881OUSGSSA
1984-10-1618:00 UTCm7201933.74  1OUSGSSA
1985-05-1520:32 UTCm62610 68.34NGVD291OUSGSSA
1985-05-1520:32 UTCm62611 67.18NAVD881OUSGSSA
1985-05-1520:32 UTCm7201935.66  1OUSGSSA
1985-05-1520:34 UTCm62610 68.34NGVD291OUSGSSA
1985-05-1520:34 UTCm62611 67.18NAVD881OUSGSSA
1985-05-1520:34 UTCm7201935.66  1OUSGSSA
1988-09-1912:50 UTCm62610 66.67NGVD291OUSGSSA
1988-09-1912:50 UTCm62611 65.51NAVD881OUSGSSA
1988-09-1912:50 UTCm7201937.33  1OUSGSSA
1988-10-0315:50 UTCm62610 66.64NGVD291OUSGSSA
1988-10-0315:50 UTCm62611 65.48NAVD881OUSGSSA
1988-10-0315:50 UTCm7201937.36  1OUSGSSA
1988-10-1112:45 UTCm62610 66.67NGVD291OUSGSSA
1988-10-1112:45 UTCm62611 65.51NAVD881OUSGSSA
1988-10-1112:45 UTCm7201937.33  1OUSGSSA
1988-10-2111:50 UTCm62610 66.66NGVD291OUSGSSA
1988-10-2111:50 UTCm62611 65.50NAVD881OUSGSSA
1988-10-2111:50 UTCm7201937.34  1OUSGSSA
1988-11-2114:35 UTCm62610 64.84NGVD291OUSGSSA
1988-11-2114:35 UTCm62611 63.68NAVD881OUSGSSA
1988-11-2114:35 UTCm7201939.16  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.