Site Number: 404757073440401 - N 9099. 1 DESCRIPTION: Latitude 40°47'57", Longitude 73°44'04" NAD27 Nassau County, New York, Hydrologic Unit 02030201 Land surface altitude: 60.0 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 StatisticsLink to NWISWeb Site Home Page No statistics displayed This well serves multiple water level parameters: 72020: Elevation above NGVD 1929, feet 72019: Depth to water level, feet below land surface This issue is under review, and will be resolved in the near future.
Daily Groundwater Data Link to NWISWeb Site Home Page Most recent Provisional daily data value: 27.47 on 10/20/09 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 07/20/02 09/30/07 1,860 97 Min Level Mean Max Level 21.54 26.77 28.93
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Periodic Groundwater Data Link to NWISWeb Site Home Page 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 04/15/76 10/21/09 384 Lowest WL Date of Lowest WL Highest WL Date of Highest WL 14.90 11/26/82 28.91 08/14/07
Groundwater Levels Options View NWISWeb Groundwater levels page Download Groundwater levels in text format
Period of Record - All Data TypesLink to NWISWeb Site Home Page Summary Statistics for Period of Record - All Data Types Depth to water level, feet below land surface Begin Date End Date Number of Values 04/15/76 10/21/09 2,977 Highest WL Date of Highest WL Lowest WL Date of Lowest WL 14.90 11/26/82 28.93 07/28/07
Period of Record Options View annual monthly statistics for all data types Download Groundwater levels in text format of all data types
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