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Site Number: 403505073401301 - N 11002. 1


 
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DESCRIPTION:
Latitude 40°35'05.7", Longitude 73°40'10.9"   NAD83
Nassau County, New York, Hydrologic Unit 02030202
Well depth: 1255. feet
Hole depth: 1475. feet
Land surface altitude: 11.0feet 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     2007-10-01  2020-12-21  
 Daily Data
    Groundwater level above NGVD 1929, feet  2002-08-16  2020-12-20  4815 
 Daily Statistics 
    Groundwater level above NGVD 1929, feet  2002-08-16  2020-01-15 4609 
 Monthly Statistics 
    Groundwater level above NGVD 1929, feet  2002-08  2020-01  
 Annual Statistics 
    Groundwater level above NGVD 1929, feet  2002  2020  
 Field groundwater-level measurements 1987-11-23  2020-12-21  196 
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: 8.59 on 12/21/2020
Period of Record Monthly Statistics for 403505073401301
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
Jan3.113.244.776.347.158.168.2216
Feb3.253.324.327 8.038.528.5315
Mar2.1 3 4.516.247.788.368.5322
Apr2.653.554.9 7.097.918.618.6314
May3.563.684.536.277.047.467.8417
Jun0.171.8 3 4.525.8 6.436.5616
Jul-0.790.431.582.5 4.144.675.0718
Aug-1.36-0.7 1.241.883.193.594.1517
Sep-0.22-0.131.262.083.664.364.6819
Oct1.221.972.934.425.045.7 6.5317
Nov1.4 2 3.4 5.416.317.4 8.9 18
Dec3.053.254.556.416.9 7.687.7314
.As of 6/27/2020 13:54-M
   Statistics Options

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Daily Groundwater Data

Most recent Provisional daily data value: 7.82 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
08/16/0201/15/20 4,60972
Lowest
Level
5th
%ile
10th
%ile
25th
%ile
50th
%ile
75th
%ile
90th
%ile
95th
%ile
Highest
Level
-2.351.412.123.715.467.128.098.489.67

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
11/23/8712/21/20196
Lowest WLDate of Lowest WLHighest WLDate of Highest WL
-2.2108/15/029.8703/11/19

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
11/23/8712/21/205,012
Lowest WLDate of Lowest WLHighest WLDate of Highest WL
-2.3508/16/029.8703/11/19

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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