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Site Number: 404030073293703 - N 180. 2


 
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DESCRIPTION:
Latitude 40°40'30", Longitude 73°29'37"   NAD27
Nassau County, New York, Hydrologic Unit 02030202
Well depth: 723. feet
Hole depth: 723. feet
Land surface altitude: 16.0feet 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  2020-11-27  
 Daily Data
    Groundwater level above NGVD 1929, feet  2003-09-12  2020-11-26  5576 
 Daily Statistics 
    Groundwater level above NGVD 1929, feet  2003-09-12  2020-02-24 5300 
 Monthly Statistics 
    Groundwater level above NGVD 1929, feet  2003-09  2020-02  
 Annual Statistics 
    Groundwater level above NGVD 1929, feet  2003  2020  
 Field groundwater-level measurements 1952-06-06  2020-11-27  544 
 Water-Year Summary 2005  2019  12 
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: 17.32 on 11/27/2020
Period of Record Monthly Statistics for 404030073293703
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
Jan13.6614.1914.7115.8317.1318.1418.3542
Feb13.7614.4115.1415.9316.8918.0518.7443
Mar13.8614.6815.4416.2117.0517.9118.5049
Apr14.3214.6315.1316.1717.1818.3919.6643
May12.5913.2214.1415.3616.5217.6218.8537
Jun11.0912.0112.9314.2315.7716.8921.0848
Jul9.9210.8911.5512.8215.0017.0718.0145
Aug9.5810.6511.4213.1315.0617.4517.8339
Sep10.2511.5112.5013.8014.8516.3318.5453
Oct12.0812.9413.9114.4916.2316.7018.6441
Nov13.4814.1614.6915.6116.5817.7418.8141
Dec14.1014.4814.9915.6516.5717.5618.4356
.As of 1/16/2021 16:55-2
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Daily Groundwater Data

Most recent Provisional daily data value: 17.32 on 11/26/20
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
09/12/0302/24/20 5,30088
Lowest
Level
5th
%ile
10th
%ile
25th
%ile
50th
%ile
75th
%ile
90th
%ile
95th
%ile
Highest
Level
8.7410.6311.4812.9414.7815.8716.7717.3218.23

Daily Data Options

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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
06/06/5211/27/20544
Lowest WLDate of Lowest WLHighest WLDate of Highest WL
8.2708/29/1621.0806/06/52

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
06/06/5211/27/206,803
Lowest WLDate of Lowest WLHighest WLDate of Highest WL
8.2708/29/1621.0806/06/52

Period of Record Options

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Last update: Thursday, September 26, 2019 at 13:24

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