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Groundwater Watch

Site Number: 404818073293101 - N 11454. 1

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Watch Help Page

DESCRIPTION:: Latitude 40°48'18", Longitude 73°29'31" NAD27
Nassau County, New York, Hydrologic Unit 02030202; Land surface altitude: 207.5 feet above sea level NGVD29.
Well completed in "Northern Atlantic Coastal Plain aquifer system" (S100NATLCP) national aquifer.
Well completed in "MAGOTHY AQUIFER" (211MGTY) local aquifer

AVAILABLE DATA FROM NWISWeb:

Daily Data
Elevation above NGVD 1929, feet	2002-08-16	2009-05-25	2435
Daily Statistics
Elevation above NGVD 1929, feet	2002-08-16	2007-09-30	1841
Monthly Statistics
Elevation above NGVD 1929, feet	2002-08	2007-09
Annual Statistics
Elevation above NGVD 1929, feet	2002	2007
Field ground-water-level measurements
Additional Data Sources	Begin Date	End Date	Count
Annual Water-Data Report (pdf) offsite	2005	2006	2

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 Statistics

Monthly statistics plot for 404818073293101

Most recent data value: 78.92 on 9/28/2009
Period of Record Monthly Statistics for 404818073293101
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 70.50 70.59 73.17 76.27 80.14 80.68 80.70 10
Feb 70.58 -   -   -   -   -   80.93 9
Mar 70.85 71.72 74.35 75.68 79.84 81.11 82.51 19
Apr 71.03 71.24 73.99 76.72 80.04 81.02 81.05 10
May 71.05 71.53 74.14 76.18 79.48 80.84 81.06 13
Jun 71.54 71.65 73.53 76.47 79.59 80.55 80.72 12
Jul 71.79 72.03 74.05 76.16 79.51 80.34 80.59 12
Aug 70.00 70.65 73.98 75.70 79.17 80.28 80.67 12
Sep 69.89 70.76 72.28 74.66 79.01 79.93 80.42 14
Oct 69.89 70.16 73.99 75.67 79.39 80.23 80.32 10
Nov 70.09 70.38 74.40 76.98 80.04 81.89 82.03 10
Dec 70.22 70.54 72.94 75.23 79.64 80.50 80.57 11

   Statistics Options

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Daily Groundwater Data

Most recent Provisional daily data value: 78.94 on 09/27/09
Summary Statistics for Period of Continuous Record
Elevation above NGVD 1929, feet
Approved Daily Mean Values Data Used in Analysis
Begin Date	End Date		Days	% Complete
08/16/02	09/30/07		1,841	98
Min Level		Mean		Max Level
69.69		76.92		81.37

	Daily Data Options
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Periodic Groundwater Data

Groundwater hydrograph for well 404818073293101

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

03/20/91

09/28/09

492

Lowest WL	Date of Lowest WL	Highest WL	Date of Highest WL
69.74	10/10/02	82.51	03/20/91

	Groundwater Levels Options
	View NWISWeb Groundwater levels page
	Download Groundwater levels in text format

Period of Record - All Data Types

Period of record plot for well 404818073293101

Summary Statistics for Period of Record - All Data Types

Depth to water level, feet below land surface

Begin Date

End Date

Number of Values

03/20/91

09/28/09

3,050

Highest WL	Date of Highest WL	Lowest WL	Date of Lowest WL
69.69	10/08/02	82.51	03/20/91

	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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Last update: Monday, September 14, 2009 at 11:44