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Site Number: 405432073345001 - N 7152. 1


 
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DESCRIPTION:
Latitude 40°54'33.4", Longitude 73°34'44.9"   NAD83
Nassau County, New York, Hydrologic Unit 02030201
Well depth: 370. feet
Land surface altitude: 14.5feet above NGVD29.
Well completed in "Northern Atlantic Coastal Plain aquifer system" (S100NATLCP) national aquifer.
Well completed in "Lloyd Aquifer" (211LLYD) local aquifer
AVAILABLE DATA:
Data Type Begin Date End Date Count
 Current / Historical Observations     2016-06-29  2020-11-03  
 Daily Data
    Groundwater level above NGVD 1929, feet  2016-06-30  2020-11-02  1435 
 Daily Statistics 
    Groundwater level above NGVD 1929, feet  2016-06-30  2019-09-12 1129 
 Monthly Statistics 
    Groundwater level above NGVD 1929, feet  2016-06  2019-09  
 Annual Statistics 
    Groundwater level above NGVD 1929, feet  2016  2019  
 Field groundwater-level measurements 1961-09-07  2020-11-03  489 
Field/Lab water-quality samples
 Water-Year Summary 2005  2019  11 
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: 8.21 on 11/3/2020
Period of Record Monthly Statistics for 405432073345001
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
Jan8.378.389.3 10.3610.8711.7 11.9 14
Feb8.218.288.7 9.7610.6 11.7811.8213
Mar8.358.579.9210.5911.4313.7914.2115
Apr7.357.538.569.8710.9513.5 14.3917
May2.643.384.375.978.6713.2 13.5816
Jun-4.99-2.2 -0.174.966.9811.3212.5415
Jul-5.16-4.54-3.27-0.532.757.1 8.1418
Aug-2.98-2.51-1.611.2 7.3411.3 11.7714
Sep-1.92-1.63-0.013.5 8.2511.5912.2315
Oct3.7 3.7 6.898.2210.1511.5813.9617
Nov6.837.728.5210.2111.2 13.6714.5615
Dec9.059.059.5 10.8 11.3512.6813.8717
.As of 6/27/2020 14:03-M
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Daily Groundwater Data

Most recent Provisional daily data value: 8.70 on 11/02/20
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
06/30/1609/12/19 1,12996

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
09/07/6111/03/20489
Lowest WLDate of Lowest WLHighest WLDate of Highest WL
-8.2707/30/2015.7402/05/62

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
09/07/6111/03/202,460
Lowest WLDate of Lowest WLHighest WLDate of Highest WL
-8.2707/30/2015.7402/05/62

Period of Record Options

View latest data on NWISWeb for all data types

View month/year statistics

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

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