Site Number: 404210073340801 - N 1615. 4 DESCRIPTION: Latitude 40°42'10", Longitude 73°34'08" NAD27 Nassau County, New York, Hydrologic Unit 02030202 Land surface altitude: 61.0 feet above sea level NGVD29. Well completed in "Northern Atlantic Coastal Plain aquifer system" (S100NATLCP) national aquifer. Well completed in " GLACIAL AQUIFER,UPPER" (112GLCLU) local aquifer AVAILABLE DATA FROM NWISWeb: OPERATION: Record for this site is maintained by the USGS New York Water Science Center Email questions about this site to New York Water Science Center Water-Data Inquiries
Site StatisticsMost recent data value: 39.09 on 10/22/2009 Period of Record Monthly Statistics for 404210073340801 Elevation above NGVD 1929, feet All Approved Continuous & Periodic Data Used In Analysis
Note: Bold values in the table indicate closest statistic to the most recent data value. Month Lowest Level 10th %ile 25th %ile 50th %ile 75th %ile 90th %ile Highest Level Number of Years Jan 34.50 35.14 36.94 38.38 40.19 40.97 41.74 19 Feb 34.18 36.18 37.22 38.44 40.43 40.99 41.33 20 Mar 34.05 36.45 37.71 39.51 40.39 41.17 41.52 20 Apr 34.05 37.15 37.93 39.90 41.08 41.28 41.33 19 May 34.32 36.86 38.21 39.81 40.70 41.72 42.28 20 Jun 34.46 36.47 38.19 39.24 40.55 41.68 42.45 20 Jul 33.74 35.81 37.74 38.44 40.09 40.80 41.36 20 Aug 32.79 34.93 37.51 37.96 39.45 40.63 40.78 19 Sep 33.42 34.54 36.99 37.73 39.30 40.22 41.16 19 Oct 34.17 34.93 37.16 38.02 39.22 40.66 41.41 21 Nov 34.38 35.20 36.84 37.98 39.73 41.70 42.27 18 Dec 34.72 34.96 37.32 38.40 39.93 41.08 41.38 18
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Daily Groundwater Data Most recent Provisional daily data value: 39.31 on 10/06/09 Summary Statistics for Period of Continuous Record Elevation above NGVD 1929, feet Approved Daily Mean Values Data Used in AnalysisBegin Date End Date Days % Complete 10/26/02 09/30/07 1,779 98
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Periodic Groundwater Data Summary Statistics for Period of Record Periodic Water Levels Elevation above NGVD 1929, feet Approved Periodic Water Level Values Begin Date End Date Number of Values 10/23/89 10/22/09 607 Lowest WL Date of Lowest WL Highest WL Date of Highest WL 32.74 08/23/02 42.45 06/11/90
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Period of Record - All Data TypesSummary Statistics for Period of Record - All Data Types Depth to water level, feet below land surface Begin Date End Date Number of Values 10/23/89 10/22/09 3,119 Highest WL Date of Highest WL Lowest WL Date of Lowest WL 32.74 08/23/02 42.45 06/11/90
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