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Site Number: 403517073430702 - N 6702. 1


 
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DESCRIPTION:
Latitude 40°35'17.0", Longitude 73°43'04.5"   NAD83
Nassau County, New York, Hydrologic Unit 02030202
Well depth: 677. feet
Land surface altitude: 10.8feet above NGVD29.
Well completed in "Northern Atlantic Coastal Plain aquifer system" (S100NATLCP) national aquifer.
Well completed in "Magothy Aquifer" (211MAGT) local aquifer
AVAILABLE DATA:
Data Type Begin Date End Date Count
 Current / Historical Observations     2007-10-01  2020-12-21  
 Daily Data
    Groundwater level above NGVD 1929, feet  2003-10-01  2020-12-20  5718 
 Daily Statistics 
    Groundwater level above NGVD 1929, feet  2003-10-01  2020-05-19 5503 
 Monthly Statistics 
    Groundwater level above NGVD 1929, feet  2003-10  2020-05  
 Annual Statistics 
    Groundwater level above NGVD 1929, feet  2004  2020  
 Field groundwater-level measurements 1961-04-13  2020-12-21  552 
Field/Lab water-quality samples
 Water-Year Summary 2005  2019  10 
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

Most recent data value: -0.66 on 12/21/2020
Period of Record Monthly Statistics for 403517073430702
Groundwater level above NGVD 1929, feet
All Approved Continuous & Periodic Data Used In Analysis
Note: Highlighted values in the table indicate closest statistic to the most recent data value.
MonthLowest
Median		10th
%ile		25th
%ile		50th
%ile		75th
%ile		90th
%ile		Highest
Median		Number
of
Years
Jan-5.77-5.1 -4.73-4.23-3.23-2.83-1.5130
Feb-5.65-4.81-4.5 -4.13-3.12-2.7 -2.4827
Mar-5.38-5.19-4.67-3.97-3.33-2.72-1.8 33
Apr-4.98-4.87-4.53-3.58-2.95-2.57-2.0628
May-6.23-5.09-4.8 -4.25-3.3 -2.79-2.1533
Jun-5.68-5.33-4.98-4.28-3.29-2.95-2.3931
Jul-5.68-5.5 -5.2 -4.6 -3.6 -3.06-2.6933
Aug-5.77-5.6 -5.03-4.33-3.79-3.2 -2.5632
Sep-5.9 -5.66-5.2 -4.5 -3.67-3.13-2.4 34
Oct-5.99-5.41-4.65-4.07-3.41-2.8 -2.3332
Nov-5.77-5.2 -4.79-4.03-3.19-2.55-1.2231
Dec-5.93-5.1 -4.77-4.1 -3.41-2.9 -2.7225
.As of 6/27/2020 13:54-M
   Statistics Options

 View month/year statistics		    View month/year statistics
Daily Groundwater Data

Most recent Provisional daily data value: -1.58 on 12/20/20
Summary for Period of Continuous Record
Groundwater level above NGVD 1929, feet
Approved Daily Mean Values Data Used in Analysis
Begin
Date		End Date Days%
Complete
10/01/0305/19/20 5,50390
Lowest
Level		5th
%ile		10th
%ile		25th
%ile		50th
%ile		75th
%ile		90th
%ile		95th
%ile		Highest
Level
-5.28-4.42-4.23-3.70-3.25-2.73-2.16-1.86-0.51

Daily Data Options

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 View daily medians		 View daily medians
Periodic Groundwater Data


Summary for Period of Record Periodic Water Levels
Elevation above NGVD 1929, feet
Approved Periodic Water Level Values
Begin DateEnd DateNumber of Values
04/13/6112/21/20552
Lowest WLDate of Lowest WLHighest WLDate of Highest WL
-6.5811/30/72-0.6612/21/20

Groundwater Levels Options

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Period of Record - All Data Types

Summary for Period of Record - All Data Types
Elevation above NGVD 1929, feet
Begin DateEnd DateNumber of Values
04/13/6112/21/206,271
Lowest WLDate of Lowest WLHighest WLDate of Highest WL
-6.5811/30/72-0.5110/29/12

Period of Record Options

 View latest data on NWISWeb for all data types

 View month/year statistics

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