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Groundwater levels for the Nation

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Agency code = usgs
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  • 404635073331001
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USGS 404635073331001 N 7030. 1

Nassau County, New York
Latitude  40°46'35", Longitude  73°33'11" NAD27
Land-surface elevation 158.0 feet above NGVD29
The depth of the well is 531 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
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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
1964-12-22 D62610 81.30NGVD291OUSGSSA
1964-12-22 D62611 80.17NAVD881OUSGSSA
1964-12-22 D7201976.70  1OUSGSSA
1969-11-24 D62610 77.56NGVD291OUSGSSA
1969-11-24 D62611 76.43NAVD881OUSGSSA
1969-11-24 D7201980.44  1OUSGSSA
1970-03-05 D62610 79.20NGVD291OUSGSSA
1970-03-05 D62611 78.07NAVD881OUSGSSA
1970-03-05 D7201978.80  1OUSGSSA
1971-03-10 D62610 79.48NGVD291OUSGSSA
1971-03-10 D62611 78.35NAVD881OUSGSSA
1971-03-10 D7201978.52  1OUSGSSA
1972-03-14 D62610 78.98NGVD291OUSGSSA
1972-03-14 D62611 77.85NAVD881OUSGSSA
1972-03-14 D7201979.02  1OUSGSSA
1973-03-21 D62610 83.00NGVD291OUSGSSA
1973-03-21 D62611 81.87NAVD881OUSGSSA
1973-03-21 D7201975.00  1OUSGSSA
1974-03-26 D62610 85.40NGVD291OUSGSSA
1974-03-26 D62611 84.27NAVD881OUSGSSA
1974-03-26 D7201972.60  1OUSGSSA
1975-03-18 D62610 84.52NGVD291OUSGSSA
1975-03-18 D62611 83.39NAVD881OUSGSSA
1975-03-18 D7201973.48  1OUSGSSA
1976-03-19 D62610 88.38NGVD291OUSGSSA
1976-03-19 D62611 87.25NAVD881OUSGSSA
1976-03-19 D7201969.62  1OUSGSSA
1977-03-29 D62610 86.55NGVD291OUSGSSA
1977-03-29 D62611 85.42NAVD881OUSGSSA
1977-03-29 D7201971.45  1OUSGSSA
1978-03-14 D62610 88.13NGVD291OUSGSSA
1978-03-14 D62611 87.00NAVD881OUSGSSA
1978-03-14 D7201969.87  1OUSGSSA
1979-03-15 D62610 89.98NGVD291OUSGSSA
1979-03-15 D62611 88.85NAVD881OUSGSSA
1979-03-15 D7201968.02  1OUSGSSA
1980-03-13 D62610 88.82NGVD291OUSGSSA
1980-03-13 D62611 87.69NAVD881OUSGSSA
1980-03-13 D7201969.18  1OUSGSSA
1981-03-10 D62610 87.22NGVD291OUSGSSA
1981-03-10 D62611 86.09NAVD881OUSGSSA
1981-03-10 D7201970.78  1OUSGSSA
1982-03-0915:40 UTCm62610 83.08NGVD291SUSGSSA
1982-03-0915:40 UTCm62611 81.95NAVD881SUSGSSA
1982-03-0915:40 UTCm7201974.92  1SUSGSSA
1983-03-0815:50 UTCm62610 80.10NGVD291SUSGSSA
1983-03-0815:50 UTCm62611 78.97NAVD881SUSGSSA
1983-03-0815:50 UTCm7201977.90  1SUSGSSA
1984-03-1514:50 UTCm62610 82.84NGVD291SUSGSSA
1984-03-1514:50 UTCm62611 81.71NAVD881SUSGSSA
1984-03-1514:50 UTCm7201975.16  1SUSGSSA
1984-03-1514:55 UTCm62610 82.84NGVD291SUSGSSA
1984-03-1514:55 UTCm62611 81.71NAVD881SUSGSSA
1984-03-1514:55 UTCm7201975.16  1SUSGSSA
1985-04-1716:24 UTCm62610 86.62NGVD291SUSGSSA
1985-04-1716:24 UTCm62611 85.49NAVD881SUSGSSA
1985-04-1716:24 UTCm7201971.38  1SUSGSSA
1988-05-0515:20 UTCm62610 65.14NGVD291OUSGSSA
1988-05-0515:20 UTCm62611 64.01NAVD881OUSGSSA
1988-05-0515:20 UTCm7201992.86  1OUSGSSA
1989-02-1615:25 UTCm62610 62.96NGVD291OUSGSSA
1989-02-1615:25 UTCm62611 61.83NAVD881OUSGSSA
1989-02-1615:25 UTCm7201995.04  1OUSGSSA
1990-04-0614:20 UTCm62610 84.74NGVD291OUSGSSA
1990-04-0614:20 UTCm62611 83.61NAVD881OUSGSSA
1990-04-0614:20 UTCm7201973.26  1OUSGSSA
1991-04-0315:00 UTCm62610 89.28NGVD291OUSGSSA
1991-04-0315:00 UTCm62611 88.15NAVD881OUSGSSA
1991-04-0315:00 UTCm7201968.72  1OUSGSSA
1992-03-2415:40 UTCm62610 88.78NGVD291OUSGSSA
1992-03-2415:40 UTCm62611 87.65NAVD881OUSGSSA
1992-03-2415:40 UTCm7201969.22  1OUSGSSA
1993-04-1315:07 UTCm62610 79.72NGVD291OUSGSSA
1993-04-1315:07 UTCm62611 78.59NAVD881OUSGSSA
1993-04-1315:07 UTCm7201978.28  1OUSGSSA
1994-04-1214:43 UTCm62610 78.67NGVD291OUSGSSA
1994-04-1214:43 UTCm62611 77.54NAVD881OUSGSSA
1994-04-1214:43 UTCm7201979.33  1OUSGSSA
1995-04-1115:30 UTCm62610 76.65NGVD291OUSGSSA
1995-04-1115:30 UTCm62611 75.52NAVD881OUSGSSA
1995-04-1115:30 UTCm7201981.35  1OUSGSSA
1997-04-3017:15 UTCm62610 73.75NGVD291OUSGSSA
1997-04-3017:15 UTCm62611 72.62NAVD881OUSGSSA
1997-04-3017:15 UTCm7201984.25  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.
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.