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Groundwater levels for the Nation

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USGS 404410073333202 N 9240. 1

Nassau County, New York
Latitude  40°44'10", Longitude  73°33'32" NAD27
Land-surface elevation 101.0 feet above NGVD29
The depth of the well is 106 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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Water
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feet
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feet
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specific
vertical
datum
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vertical
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1980-05-14 D62610 70.13NGVD291OUSGSSA
1980-05-14 D62611 68.95NAVD881OUSGSSA
1980-05-14 D7201930.87  1OUSGSSA
1980-10-14 D62610 67.17NGVD291OUSGSSA
1980-10-14 D62611 65.99NAVD881OUSGSSA
1980-10-14 D7201933.83  1OUSGSSA
1981-01-19 D62610 66.13NGVD291OUSGSSA
1981-01-19 D62611 64.95NAVD881OUSGSSA
1981-01-19 D7201934.87  1OUSGSSA
1981-02-18 D62610 65.74NGVD291OUSGSSA
1981-02-18 D62611 64.56NAVD881OUSGSSA
1981-02-18 D7201935.26  1OUSGSSA
1981-03-23 D62610 65.64NGVD291OUSGSSA
1981-03-23 D62611 64.46NAVD881OUSGSSA
1981-03-23 D7201935.36  1OUSGSSA
1981-04-27 D62610 65.54NGVD291OUSGSSA
1981-04-27 D62611 64.36NAVD881OUSGSSA
1981-04-27 D7201935.46  1OUSGSSA
1981-05-26 D62610 65.33NGVD291OUSGSSA
1981-05-26 D62611 64.15NAVD881OUSGSSA
1981-05-26 D7201935.67  1OUSGSSA
1981-06-2319:00 UTCm62610 64.95NGVD291OUSGSSA
1981-06-2319:00 UTCm62611 63.77NAVD881OUSGSSA
1981-06-2319:00 UTCm7201936.05  1OUSGSSA
1981-07-2718:45 UTCm62610 64.76NGVD291OUSGSSA
1981-07-2718:45 UTCm62611 63.58NAVD881OUSGSSA
1981-07-2718:45 UTCm7201936.24  1OUSGSSA
1981-08-2417:30 UTCm62610 64.31NGVD291OUSGSSA
1981-08-2417:30 UTCm62611 63.13NAVD881OUSGSSA
1981-08-2417:30 UTCm7201936.69  1OUSGSSA
1981-10-0518:00 UTCm62610 63.96NGVD291OUSGSSA
1981-10-0518:00 UTCm62611 62.78NAVD881OUSGSSA
1981-10-0518:00 UTCm7201937.04  1OUSGSSA
1981-11-0217:30 UTCm62610 63.58NGVD291OUSGSSA
1981-11-0217:30 UTCm62611 62.40NAVD881OUSGSSA
1981-11-0217:30 UTCm7201937.42  1OUSGSSA
1981-12-0316:15 UTCm62610 63.26NGVD291OUSGSSA
1981-12-0316:15 UTCm62611 62.08NAVD881OUSGSSA
1981-12-0316:15 UTCm7201937.74  1OUSGSSA
1982-01-0516:30 UTCm62610 63.26NGVD291OUSGSSA
1982-01-0516:30 UTCm62611 62.08NAVD881OUSGSSA
1982-01-0516:30 UTCm7201937.74  1OUSGSSA
1982-02-0817:30 UTCm62610 64.61NGVD291OUSGSSA
1982-02-0817:30 UTCm62611 63.43NAVD881OUSGSSA
1982-02-0817:30 UTCm7201936.39  1OUSGSSA
1982-03-1715:30 UTCm62610 64.58NGVD291OUSGSSA
1982-03-1715:30 UTCm62611 63.40NAVD881OUSGSSA
1982-03-1715:30 UTCm7201936.42  1OUSGSSA
1982-04-1917:30 UTCm62610 64.27NGVD291OUSGSSA
1982-04-1917:30 UTCm62611 63.09NAVD881OUSGSSA
1982-04-1917:30 UTCm7201936.73  1OUSGSSA
1982-05-2617:45 UTCm62610 64.26NGVD291OUSGSSA
1982-05-2617:45 UTCm62611 63.08NAVD881OUSGSSA
1982-05-2617:45 UTCm7201936.74  1OUSGSSA
1982-07-0115:30 UTCm62610 64.65NGVD291OUSGSSA
1982-07-0115:30 UTCm62611 63.47NAVD881OUSGSSA
1982-07-0115:30 UTCm7201936.35  1OUSGSSA
1982-08-1316:30 UTCm62610 64.21NGVD291OUSGSSA
1982-08-1316:30 UTCm62611 63.03NAVD881OUSGSSA
1982-08-1316:30 UTCm7201936.79  1OUSGSSA
1982-09-2915:15 UTCm62610 63.46NGVD291OUSGSSA
1982-09-2915:15 UTCm62611 62.28NAVD881OUSGSSA
1982-09-2915:15 UTCm7201937.54  1OUSGSSA
1982-11-0217:45 UTCm62610 62.96NGVD291OUSGSSA
1982-11-0217:45 UTCm62611 61.78NAVD881OUSGSSA
1982-11-0217:45 UTCm7201938.04  1OUSGSSA
1982-12-0315:45 UTCm62610 62.59NGVD291OUSGSSA
1982-12-0315:45 UTCm62611 61.41NAVD881OUSGSSA
1982-12-0315:45 UTCm7201938.41  1OUSGSSA
1983-02-2417:45 UTCm62610 61.91NGVD291OUSGSSA
1983-02-2417:45 UTCm62611 60.73NAVD881OUSGSSA
1983-02-2417:45 UTCm7201939.09  1OUSGSSA
1983-03-3115:00 UTCm62610 62.68NGVD291OUSGSSA
1983-03-3115:00 UTCm62611 61.50NAVD881OUSGSSA
1983-03-3115:00 UTCm7201938.32  1OUSGSSA
1983-05-0314:45 UTCm62610 66.02NGVD291OUSGSSA
1983-05-0314:45 UTCm62611 64.84NAVD881OUSGSSA
1983-05-0314:45 UTCm7201934.98  1OUSGSSA
1983-06-0714:45 UTCm62610 66.65NGVD291OUSGSSA
1983-06-0714:45 UTCm62611 65.47NAVD881OUSGSSA
1983-06-0714:45 UTCm7201934.35  1OUSGSSA
1983-07-1213:40 UTCm62610 65.71NGVD291OUSGSSA
1983-07-1213:40 UTCm62611 64.53NAVD881OUSGSSA
1983-07-1213:40 UTCm7201935.29  1OUSGSSA
1983-08-1613:48 UTCm62610 65.05NGVD291OUSGSSA
1983-08-1613:48 UTCm62611 63.87NAVD881OUSGSSA
1983-08-1613:48 UTCm7201935.95  1OUSGSSA
1983-09-2215:12 UTCm62610 64.56NGVD291OUSGSSA
1983-09-2215:12 UTCm62611 63.38NAVD881OUSGSSA
1983-09-2215:12 UTCm7201936.44  1OUSGSSA
1983-10-2814:34 UTCm62610 64.80NGVD291OUSGSSA
1983-10-2814:34 UTCm62611 63.62NAVD881OUSGSSA
1983-10-2814:34 UTCm7201936.20  1OUSGSSA
1983-12-0218:35 UTCm62610 65.70NGVD291OUSGSSA
1983-12-0218:35 UTCm62611 64.52NAVD881OUSGSSA
1983-12-0218:35 UTCm7201935.30  1OUSGSSA
1984-01-0916:00 UTCm62610 67.06NGVD291OUSGSSA
1984-01-0916:00 UTCm62611 65.88NAVD881OUSGSSA
1984-01-0916:00 UTCm7201933.94  1OUSGSSA
1984-02-0218:30 UTCm62610 66.86NGVD291OUSGSSA
1984-02-0218:30 UTCm62611 65.68NAVD881OUSGSSA
1984-02-0218:30 UTCm7201934.14  1OUSGSSA
1984-04-0315:30 UTCm62610 67.67NGVD291OUSGSSA
1984-04-0315:30 UTCm62611 66.49NAVD881OUSGSSA
1984-04-0315:30 UTCm7201933.33  1OUSGSSA
1984-05-2418:10 UTCm62610 68.92NGVD291OUSGSSA
1984-05-2418:10 UTCm62611 67.74NAVD881OUSGSSA
1984-05-2418:10 UTCm7201932.08  1OUSGSSA
1984-07-2618:15 UTCm62610 70.44NGVD291OUSGSSA
1984-07-2618:15 UTCm62611 69.26NAVD881OUSGSSA
1984-07-2618:15 UTCm7201930.56  1OUSGSSA
1984-09-2720:00 UTCm62610 68.84NGVD291OUSGSSA
1984-09-2720:00 UTCm62611 67.66NAVD881OUSGSSA
1984-09-2720:00 UTCm7201932.16  1OUSGSSA
1984-11-0815:30 UTCm62610 67.59NGVD291OUSGSSA
1984-11-0815:30 UTCm62611 66.41NAVD881OUSGSSA
1984-11-0815:30 UTCm7201933.41  1OUSGSSA
1985-01-1418:30 UTCm62610 66.04NGVD291OUSGSSA
1985-01-1418:30 UTCm62611 64.86NAVD881OUSGSSA
1985-01-1418:30 UTCm7201934.96  1OUSGSSA
1985-03-1114:43 UTCm62610 65.15NGVD291OUSGSSA
1985-03-1114:43 UTCm62611 63.97NAVD881OUSGSSA
1985-03-1114:43 UTCm7201935.85  1OUSGSSA
1985-05-1413:44 UTCm62610 64.11NGVD291OUSGSSA
1985-05-1413:44 UTCm62611 62.93NAVD881OUSGSSA
1985-05-1413:44 UTCm7201936.89  1OUSGSSA
1985-07-2415:25 UTCm62610 63.44NGVD291OUSGSSA
1985-07-2415:25 UTCm62611 62.26NAVD881OUSGSSA
1985-07-2415:25 UTCm7201937.56  1OUSGSSA
1985-09-2617:02 UTCm62610 62.76NGVD291OUSGSSA
1985-09-2617:02 UTCm62611 61.58NAVD881OUSGSSA
1985-09-2617:02 UTCm7201938.24  1OUSGSSA
1986-01-0814:00 UTCm62610 62.41NGVD291OUSGSSA
1986-01-0814:00 UTCm62611 61.23NAVD881OUSGSSA
1986-01-0814:00 UTCm7201938.59  1OUSGSSA
1986-05-0814:15 UTCm62610 62.38NGVD291OUSGSSA
1986-05-0814:15 UTCm62611 61.20NAVD881OUSGSSA
1986-05-0814:15 UTCm7201938.62  1OUSGSSA
1987-05-2111:54 UTCm62610 62.08NGVD291OUSGSSA
1987-05-2111:54 UTCm62611 60.90NAVD881OUSGSSA
1987-05-2111:54 UTCm7201938.92  1OUSGSSA
1987-07-2914:37 UTCm62610 60.91NGVD291OUSGSSA
1987-07-2914:37 UTCm62611 59.73NAVD881OUSGSSA
1987-07-2914:37 UTCm7201940.09  1OUSGSSA
1988-11-1816:00 UTCm62610 57.77NGVD291OUSGSSA
1988-11-1816:00 UTCm62611 56.59NAVD881OUSGSSA
1988-11-1816:00 UTCm7201943.23  1OUSGSSA
1988-11-30 D62610 58.16NGVD291OUSGSSA
1988-11-30 D62611 56.98NAVD881OUSGSSA
1988-11-30 D7201942.84  1OUSGSSA
1989-04-1314:30 UTCm62610 58.52NGVD291OUSGSSA
1989-04-1314:30 UTCm62611 57.34NAVD881OUSGSSA
1989-04-1314:30 UTCm7201942.48  1OUSGSSA
1989-09-2017:30 UTCm62610 63.75NGVD291OUSGSSA
1989-09-2017:30 UTCm62611 62.57NAVD881OUSGSSA
1989-09-2017:30 UTCm7201937.25  1OUSGSSA
1989-10-23 D62610 63.84NGVD291OUSGSSA
1989-10-23 D62611 62.66NAVD881OUSGSSA
1989-10-23 D7201937.16  1OUSGSSA
1989-11-2216:11 UTCm62610 64.75NGVD291OUSGSSA
1989-11-2216:11 UTCm62611 63.57NAVD881OUSGSSA
1989-11-2216:11 UTCm7201936.25  1OUSGSSA
1990-01-18 D62610 64.25NGVD291OUSGSSA
1990-01-18 D62611 63.07NAVD881OUSGSSA
1990-01-18 D7201936.75  1OUSGSSA
1990-02-12 D62610 63.91NGVD291OUSGSSA
1990-02-12 D62611 62.73NAVD881OUSGSSA
1990-02-12 D7201937.09  1OUSGSSA
1990-03-2816:08 UTCm62610 63.70NGVD291OUSGSSA
1990-03-2816:08 UTCm62611 62.52NAVD881OUSGSSA
1990-03-2816:08 UTCm7201937.30  1OUSGSSA
1990-05-1714:15 UTCm62610 64.43NGVD291OUSGSSA
1990-05-1714:15 UTCm62611 63.25NAVD881OUSGSSA
1990-05-1714:15 UTCm7201936.57  1OUSGSSA
1990-08-16 D62610 64.61NGVD291OUSGSSA
1990-08-16 D62611 63.43NAVD881OUSGSSA
1990-08-16 D7201936.39  1OUSGSSA
1990-08-1713:00 UTCm62610 64.58NGVD291OUSGSSA
1990-08-1713:00 UTCm62611 63.40NAVD881OUSGSSA
1990-08-1713:00 UTCm7201936.42  1OUSGSSA
1990-10-2218:40 UTCm62610 64.19NGVD291OUSGSSA
1990-10-2218:40 UTCm62611 63.01NAVD881OUSGSSA
1990-10-2218:40 UTCm7201936.81  1OUSGSSA
1991-01-1017:15 UTCm62610 64.43NGVD291OUSGSSA
1991-01-1017:15 UTCm62611 63.25NAVD881OUSGSSA
1991-01-1017:15 UTCm7201936.57  1OUSGSSA
1991-01-2915:00 UTCm62610 65.01NGVD291OUSGSSA
1991-01-2915:00 UTCm62611 63.83NAVD881OUSGSSA
1991-01-2915:00 UTCm7201935.99  1OUSGSSA
1991-03-1920:20 UTCm62610 65.11NGVD291OUSGSSA
1991-03-1920:20 UTCm62611 63.93NAVD881OUSGSSA
1991-03-1920:20 UTCm7201935.89  1OUSGSSA
1991-04-2518:00 UTCm62610 64.96NGVD291OUSGSSA
1991-04-2518:00 UTCm62611 63.78NAVD881OUSGSSA
1991-04-2518:00 UTCm7201936.04  1OUSGSSA
1991-11-2715:00 UTCm62610 62.71NGVD291OUSGSSA
1991-11-2715:00 UTCm62611 61.53NAVD881OUSGSSA
1991-11-2715:00 UTCm7201938.29  1OUSGSSA
1992-06-2318:25 UTCm62610 60.85NGVD291OUSGSSA
1992-06-2318:25 UTCm62611 59.67NAVD881OUSGSSA
1992-06-2318:25 UTCm7201940.15  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.