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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

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USGS 405158073300101 N 9154. 1

Nassau County, New York
Latitude  40°51'58", Longitude  73°30'01" NAD27
Land-surface elevation 34.0 feet above NGVD29
The depth of the well is 66 feet below land surface.
This well is completed in the Port Washington Confining Unit (112PGFG) local aquifer.
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1976-09-0716:40 UTCm62610 -9.07NGVD291OUSGSSA
1976-09-0716:40 UTCm62611 -10.13NAVD881OUSGSSA
1976-09-0716:40 UTCm7201943.07  1OUSGSSA
1976-12-0918:42 UTCm62610 -8.89NGVD291OUSGSSA
1976-12-0918:42 UTCm62611 -9.95NAVD881OUSGSSA
1976-12-0918:42 UTCm7201942.89  1OUSGSSA
1977-03-3018:40 UTCm62610 -9.02NGVD291OUSGSSA
1977-03-3018:40 UTCm62611 -10.08NAVD881OUSGSSA
1977-03-3018:40 UTCm7201943.02  1OUSGSSA
1977-06-1418:50 UTCm62610 -9.33NGVD291OUSGSSA
1977-06-1418:50 UTCm62611 -10.39NAVD881OUSGSSA
1977-06-1418:50 UTCm7201943.33  1OUSGSSA
1977-09-0918:45 UTCm62610 -10.00NGVD291OUSGSSA
1977-09-0918:45 UTCm62611 -11.06NAVD881OUSGSSA
1977-09-0918:45 UTCm7201944.00  1OUSGSSA
1977-12-1917:10 UTCm62610 -9.25NGVD291OUSGSSA
1977-12-1917:10 UTCm62611 -10.31NAVD881OUSGSSA
1977-12-1917:10 UTCm7201943.25  1OUSGSSA
1978-03-2818:40 UTCm62610 -7.93NGVD291OUSGSSA
1978-03-2818:40 UTCm62611 -8.99NAVD881OUSGSSA
1978-03-2818:40 UTCm7201941.93  1OUSGSSA
1978-06-0815:20 UTCm62610 -7.78NGVD291OUSGSSA
1978-06-0815:20 UTCm62611 -8.84NAVD881OUSGSSA
1978-06-0815:20 UTCm7201941.78  1OUSGSSA
1978-09-1517:36 UTCm62610 -8.23NGVD291OUSGSSA
1978-09-1517:36 UTCm62611 -9.29NAVD881OUSGSSA
1978-09-1517:36 UTCm7201942.23  1OUSGSSA
1978-12-0518:53 UTCm62610 -8.32NGVD291OUSGSSA
1978-12-0518:53 UTCm62611 -9.38NAVD881OUSGSSA
1978-12-0518:53 UTCm7201942.32  1OUSGSSA
1979-03-0915:03 UTCm62610 -7.57NGVD291OUSGSSA
1979-03-0915:03 UTCm62611 -8.63NAVD881OUSGSSA
1979-03-0915:03 UTCm7201941.57  1OUSGSSA
1979-05-3118:17 UTCm62610 -7.22NGVD291OUSGSSA
1979-05-3118:17 UTCm62611 -8.28NAVD881OUSGSSA
1979-05-3118:17 UTCm7201941.22  1OUSGSSA
1979-09-1318:04 UTCm62610 -7.74NGVD291OUSGSSA
1979-09-1318:04 UTCm62611 -8.80NAVD881OUSGSSA
1979-09-1318:04 UTCm7201941.74  1OUSGSSA
1979-12-1118:01 UTCm62610 -7.88NGVD291OUSGSSA
1979-12-1118:01 UTCm62611 -8.94NAVD881OUSGSSA
1979-12-1118:01 UTCm7201941.88  1OUSGSSA
1980-03-2017:00 UTCm62610 -8.20NGVD291OUSGSSA
1980-03-2017:00 UTCm62611 -9.26NAVD881OUSGSSA
1980-03-2017:00 UTCm7201942.20  1OUSGSSA
1980-05-2919:20 UTCm62610 -7.29NGVD291OUSGSSA
1980-05-2919:20 UTCm62611 -8.35NAVD881OUSGSSA
1980-05-2919:20 UTCm7201941.29  1OUSGSSA
1980-09-0518:42 UTCm62610 -8.58NGVD291OUSGSSA
1980-09-0518:42 UTCm62611 -9.64NAVD881OUSGSSA
1980-09-0518:42 UTCm7201942.58  1OUSGSSA
1980-12-1918:11 UTCm62610 -8.92NGVD291OUSGSSA
1980-12-1918:11 UTCm62611 -9.98NAVD881OUSGSSA
1980-12-1918:11 UTCm7201942.92  1OUSGSSA
1981-03-1216:48 UTCm62610 -9.35NGVD291OUSGSSA
1981-03-1216:48 UTCm62611 -10.41NAVD881OUSGSSA
1981-03-1216:48 UTCm7201943.35  1OUSGSSA
1981-06-0115:47 UTCm62610 -10.21NGVD291OUSGSSA
1981-06-0115:47 UTCm62611 -11.27NAVD881OUSGSSA
1981-06-0115:47 UTCm7201944.21  1OUSGSSA
1981-09-1119:47 UTCm62610 -10.70NGVD291OUSGSSA
1981-09-1119:47 UTCm62611 -11.76NAVD881OUSGSSA
1981-09-1119:47 UTCm7201944.70  1OUSGSSA
1982-01-0514:10 UTCm62610 -11.04NGVD291OUSGSSA
1982-01-0514:10 UTCm62611 -12.10NAVD881OUSGSSA
1982-01-0514:10 UTCm7201945.04  1OUSGSSA
1982-03-1918:47 UTCm62610 -10.56NGVD291OUSGSSA
1982-03-1918:47 UTCm62611 -11.62NAVD881OUSGSSA
1982-03-1918:47 UTCm7201944.56  1OUSGSSA
1982-07-0618:58 UTCm62610 -10.20NGVD291OUSGSSA
1982-07-0618:58 UTCm62611 -11.26NAVD881OUSGSSA
1982-07-0618:58 UTCm7201944.20  1OUSGSSA
1982-09-0819:00 UTCm62610 -10.39NGVD291OUSGSSA
1982-09-0819:00 UTCm62611 -11.45NAVD881OUSGSSA
1982-09-0819:00 UTCm7201944.39  1OUSGSSA
1982-12-0215:22 UTCm62610 -10.28NGVD291OUSGSSA
1982-12-0215:22 UTCm62611 -11.34NAVD881OUSGSSA
1982-12-0215:22 UTCm7201944.28  1OUSGSSA
1983-04-0618:39 UTCm62610 -9.60NGVD291OUSGSSA
1983-04-0618:39 UTCm62611 -10.66NAVD881OUSGSSA
1983-04-0618:39 UTCm7201943.60  1OUSGSSA
1983-07-0617:40 UTCm62610 -8.33NGVD291OUSGSSA
1983-07-0617:40 UTCm62611 -9.39NAVD881OUSGSSA
1983-07-0617:40 UTCm7201942.33  1OUSGSSA
1983-08-04 D62610 -9.42NGVD291OUSGSSA
1983-08-04 D62611 -10.48NAVD881OUSGSSA
1983-08-04 D7201943.42  1OUSGSSA
1984-05-1017:02 UTCm62610 -7.49NGVD291OUSGSSA
1984-05-1017:02 UTCm62611 -8.55NAVD881OUSGSSA
1984-05-1017:02 UTCm7201941.49  1OUSGSSA
1990-03-2817:30 UTCm62610 24.82NGVD294OUSGSSA
1990-03-2817:30 UTCm62611 23.76NAVD884OUSGSSA
1990-03-2817:30 UTCm720199.18  4OUSGSSA
1991-03-2019:53 UTCm62610 25.84NGVD294OUSGSSA
1991-03-2019:53 UTCm62611 24.78NAVD884OUSGSSA
1991-03-2019:53 UTCm720198.16  4OUSGSSA
1991-11-0617:18 UTCm62610 24.82NGVD291OUSGSSA
1991-11-0617:18 UTCm62611 23.76NAVD881OUSGSSA
1991-11-0617:18 UTCm720199.18  1OUSGSSA
1992-04-1615:35 UTCm62610 24.73NGVD294OUSGSSA
1992-04-1615:35 UTCm62611 23.67NAVD884OUSGSSA
1992-04-1615:35 UTCm720199.27  4OUSGSSA
1992-05-1919:07 UTCm62610 24.75NGVD294OUSGSSA
1992-05-1919:07 UTCm62611 23.69NAVD884OUSGSSA
1992-05-1919:07 UTCm720199.25  4OUSGSSA
1992-05-2914:35 UTCm62610 24.68NGVD294OUSGSSA
1992-05-2914:35 UTCm62611 23.62NAVD884OUSGSSA
1992-05-2914:35 UTCm720199.32  4OUSGSSA
1992-06-1517:16 UTCm62610 24.51NGVD294OUSGSSA
1992-06-1517:16 UTCm62611 23.45NAVD884OUSGSSA
1992-06-1517:16 UTCm720199.49  4OUSGSSA
1992-07-1517:04 UTCm62610 24.40NGVD294OUSGSSA
1992-07-1517:04 UTCm62611 23.34NAVD884OUSGSSA
1992-07-1517:04 UTCm720199.60  4OUSGSSA
1992-08-2714:22 UTCm62610 24.54NGVD294OUSGSSA
1992-08-2714:22 UTCm62611 23.48NAVD884OUSGSSA
1992-08-2714:22 UTCm720199.46  4OUSGSSA
1992-09-2515:20 UTCm62610 24.26NGVD294OUSGSSA
1992-09-2515:20 UTCm62611 23.20NAVD884OUSGSSA
1992-09-2515:20 UTCm720199.74  4OUSGSSA
1992-10-2615:41 UTCm62610 24.26NGVD294OUSGSSA
1992-10-2615:41 UTCm62611 23.20NAVD884OUSGSSA
1992-10-2615:41 UTCm720199.74  4OUSGSSA
1992-11-2416:40 UTCm62610 24.19NGVD294OUSGSSA
1992-11-2416:40 UTCm62611 23.13NAVD884OUSGSSA
1992-11-2416:40 UTCm720199.81  4OUSGSSA
1992-12-0816:01 UTCm62610 24.14NGVD291OUSGSSA
1992-12-0816:01 UTCm62611 23.08NAVD881OUSGSSA
1992-12-0816:01 UTCm720199.86  1OUSGSSA
1992-12-2215:29 UTCm62610 24.54NGVD294OUSGSSA
1992-12-2215:29 UTCm62611 23.48NAVD884OUSGSSA
1992-12-2215:29 UTCm720199.46  4OUSGSSA
1993-01-2516:50 UTCm62610 24.53NGVD294OUSGSSA
1993-01-2516:50 UTCm62611 23.47NAVD884OUSGSSA
1993-01-2516:50 UTCm720199.47  4OUSGSSA
1993-02-1915:13 UTCm62610 24.19NGVD294OUSGSSA
1993-02-1915:13 UTCm62611 23.13NAVD884OUSGSSA
1993-02-1915:13 UTCm720199.81  4OUSGSSA
1993-03-2618:20 UTCm62610 24.41NGVD294OUSGSSA
1993-03-2618:20 UTCm62611 23.35NAVD884OUSGSSA
1993-03-2618:20 UTCm720199.59  4OUSGSSA
1993-04-2014:18 UTCm62610 25.06NGVD294OUSGSSA
1993-04-2014:18 UTCm62611 24.00NAVD884OUSGSSA
1993-04-2014:18 UTCm720198.94  4OUSGSSA
1993-05-2116:53 UTCm62610 24.78NGVD294OUSGSSA
1993-05-2116:53 UTCm62611 23.72NAVD884OUSGSSA
1993-05-2116:53 UTCm720199.22  4OUSGSSA
1993-06-1511:42 UTCm62610 24.75NGVD294OUSGSSA
1993-06-1511:42 UTCm62611 23.69NAVD884OUSGSSA
1993-06-1511:42 UTCm720199.25  4OUSGSSA
1993-06-2319:57 UTCm62610 23.82NGVD294OUSGSSA
1993-06-2319:57 UTCm62611 22.76NAVD884OUSGSSA
1993-06-2319:57 UTCm7201910.18  4OUSGSSA
1993-07-1915:01 UTCm62610 23.68NGVD294OUSGSSA
1993-07-1915:01 UTCm62611 22.62NAVD884OUSGSSA
1993-07-1915:01 UTCm7201910.32  4OUSGSSA
1993-08-1615:30 UTCm62610 23.55NGVD294OUSGSSA
1993-08-1615:30 UTCm62611 22.49NAVD884OUSGSSA
1993-08-1615:30 UTCm7201910.45  4OUSGSSA
1993-09-1515:41 UTCm62610 23.74NGVD294OUSGSSA
1993-09-1515:41 UTCm62611 22.68NAVD884OUSGSSA
1993-09-1515:41 UTCm7201910.26  4OUSGSSA
1993-10-1818:14 UTCm62610 23.98NGVD294OUSGSSA
1993-10-1818:14 UTCm62611 22.92NAVD884OUSGSSA
1993-10-1818:14 UTCm7201910.02  4OUSGSSA
1993-11-1517:25 UTCm62610 23.39NGVD294OUSGSSA
1993-11-1517:25 UTCm62611 22.33NAVD884OUSGSSA
1993-11-1517:25 UTCm7201910.61  4OUSGSSA
1993-12-1417:07 UTCm62610 23.58NGVD294OUSGSSA
1993-12-1417:07 UTCm62611 22.52NAVD884OUSGSSA
1993-12-1417:07 UTCm7201910.42  4OUSGSSA
1993-12-1720:30 UTCm62610 23.71NGVD294OUSGSSA
1993-12-1720:30 UTCm62611 22.65NAVD884OUSGSSA
1993-12-1720:30 UTCm7201910.29  4OUSGSSA
1994-03-2919:32 UTCm62610 23.90NGVD294OUSGSSA
1994-03-2919:32 UTCm62611 22.84NAVD884OUSGSSA
1994-03-2919:32 UTCm7201910.10  4OUSGSSA
1994-04-2818:22 UTCm62610 24.15NGVD294OUSGSSA
1994-04-2818:22 UTCm62611 23.09NAVD884OUSGSSA
1994-04-2818:22 UTCm720199.85  4OUSGSSA
1994-05-2617:40 UTCm62610 24.40NGVD294OUSGSSA
1994-05-2617:40 UTCm62611 23.34NAVD884OUSGSSA
1994-05-2617:40 UTCm720199.60  4OUSGSSA
1994-06-0817:29 UTCm62610 23.63NGVD294OUSGSSA
1994-06-0817:29 UTCm62611 22.57NAVD884OUSGSSA
1994-06-0817:29 UTCm7201910.37  4OUSGSSA
1994-06-2116:06 UTCm62610 23.25NGVD294OUSGSSA
1994-06-2116:06 UTCm62611 22.19NAVD884OUSGSSA
1994-06-2116:06 UTCm7201910.75  4OUSGSSA
1994-07-2115:26 UTCm62610 22.89NGVD294OUSGSSA
1994-07-2115:26 UTCm62611 21.83NAVD884OUSGSSA
1994-07-2115:26 UTCm7201911.11  4OUSGSSA
1994-08-1915:55 UTCm62610 23.16NGVD294OUSGSSA
1994-08-1915:55 UTCm62611 22.10NAVD884OUSGSSA
1994-08-1915:55 UTCm7201910.84  4OUSGSSA
1994-09-2017:04 UTCm62610 22.41NGVD294OUSGSSA
1994-09-2017:04 UTCm62611 21.35NAVD884OUSGSSA
1994-09-2017:04 UTCm7201911.59  4OUSGSSA
1994-10-1715:03 UTCm62610 22.38NGVD294OUSGSSA
1994-10-1715:03 UTCm62611 21.32NAVD884OUSGSSA
1994-10-1715:03 UTCm7201911.62  4OUSGSSA
1994-12-1513:25 UTCm62610 22.78NGVD294OUSGSSA
1994-12-1513:25 UTCm62611 21.72NAVD884OUSGSSA
1994-12-1513:25 UTCm7201911.22  4OUSGSSA
1995-01-1918:33 UTCm62610 23.78NGVD294OUSGSSA
1995-01-1918:33 UTCm62611 22.72NAVD884OUSGSSA
1995-01-1918:33 UTCm7201910.22  4OUSGSSA
1995-03-1614:49 UTCm62610 23.05NGVD294OUSGSSA
1995-03-1614:49 UTCm62611 21.99NAVD884OUSGSSA
1995-03-1614:49 UTCm7201910.95  4OUSGSSA
1995-05-1616:19 UTCm62610 22.66NGVD294OUSGSSA
1995-05-1616:19 UTCm62611 21.60NAVD884OUSGSSA
1995-05-1616:19 UTCm7201911.34  4OUSGSSA
1995-06-1319:00 UTCm62610 22.58NGVD294OUSGSSA
1995-06-1319:00 UTCm62611 21.52NAVD884OUSGSSA
1995-06-1319:00 UTCm7201911.42  4OUSGSSA
1995-07-2515:19 UTCm62610 22.16NGVD294OUSGSSA
1995-07-2515:19 UTCm62611 21.10NAVD884OUSGSSA
1995-07-2515:19 UTCm7201911.84  4OUSGSSA
1995-09-2114:09 UTCm62610 21.55NGVD294OUSGSSA
1995-09-2114:09 UTCm62611 20.49NAVD884OUSGSSA
1995-09-2114:09 UTCm7201912.45  4OUSGSSA
1995-11-2720:13 UTCm62610 21.93NGVD294OUSGSSA
1995-11-2720:13 UTCm62611 20.87NAVD884OUSGSSA
1995-11-2720:13 UTCm7201912.07  4OUSGSSA
1995-12-0718:22 UTCm62610 21.97NGVD294OUSGSSA
1995-12-0718:22 UTCm62611 20.91NAVD884OUSGSSA
1995-12-0718:22 UTCm7201912.03  4OUSGSSA
1996-01-2218:10 UTCm62610 21.60NGVD294OUSGSSA
1996-01-2218:10 UTCm62611 20.54NAVD884OUSGSSA
1996-01-2218:10 UTCm7201912.40  4OUSGSSA
1996-03-2017:55 UTCm62610 22.49NGVD294OUSGSSA
1996-03-2017:55 UTCm62611 21.43NAVD884OUSGSSA
1996-03-2017:55 UTCm7201911.51  4OUSGSSA
1996-05-1517:00 UTCm62610 21.50NGVD294OUSGSSA
1996-05-1517:00 UTCm62611 20.44NAVD884OUSGSSA
1996-05-1517:00 UTCm7201912.50  4OUSGSSA
1996-07-0217:40 UTCm62610 22.45NGVD294OUSGSSA
1996-07-0217:40 UTCm62611 21.39NAVD884OUSGSSA
1996-07-0217:40 UTCm7201911.55  4OUSGSSA
1996-09-1016:53 UTCm62610 22.07NGVD294OUSGSSA
1996-09-1016:53 UTCm62611 21.01NAVD884OUSGSSA
1996-09-1016:53 UTCm7201911.93  4OUSGSSA
1996-09-1618:31 UTCm62610 22.27NGVD294OUSGSSA
1996-09-1618:31 UTCm62611 21.21NAVD884OUSGSSA
1996-09-1618:31 UTCm7201911.73  4OUSGSSA
1996-12-1219:40 UTCm62610 23.02NGVD291OUSGSSA
1996-12-1219:40 UTCm62611 21.96NAVD881OUSGSSA
1996-12-1219:40 UTCm7201910.98  1OUSGSSA
1997-03-1119:10 UTCm62610 23.61NGVD294OUSGSSA
1997-03-1119:10 UTCm62611 22.55NAVD884OUSGSSA
1997-03-1119:10 UTCm7201910.39  4OUSGSSA
1997-05-2217:25 UTCm62610 23.83NGVD294OUSGSSA
1997-05-2217:25 UTCm62611 22.77NAVD884OUSGSSA
1997-05-2217:25 UTCm7201910.17  4OUSGSSA
1997-07-2320:00 UTCm62610 22.65NGVD294OUSGSSA
1997-07-2320:00 UTCm62611 21.59NAVD884OUSGSSA
1997-07-2320:00 UTCm7201911.35  4OUSGSSA
1997-08-2119:30 UTCm62610 22.99NGVD294OUSGSSA
1997-08-2119:30 UTCm62611 21.93NAVD884OUSGSSA
1997-08-2119:30 UTCm7201911.01  4OUSGSSA
1997-09-1717:30 UTCm62610 22.81NGVD294OUSGSSA
1997-09-1717:30 UTCm62611 21.75NAVD884OUSGSSA
1997-09-1717:30 UTCm7201911.19  4OUSGSSA
1998-03-3019:49 UTCm62610 23.93NGVD291SUSGSSA
1998-03-3019:49 UTCm62611 22.87NAVD881SUSGSSA
1998-03-3019:49 UTCm7201910.07  1SUSGSSA

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
Status4GWTideAffected
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.