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Site Number: 403922073353501 - N 67. 1


 
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DESCRIPTION:
Latitude 40°39'22.4", Longitude 73°35'33.6"   NAD83
Nassau County, New York, Hydrologic Unit 02030202
Well depth: 1052. feet
Land surface altitude: 22.0feet 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
 Field groundwater-level measurements 1946-12-05  2020-10-20  465 
Field/Lab water-quality samples

Additional Data Sources

Begin Date

End Date

Count
 Annual Water-Data Report (pdf)  **offsite** 2005  2011  7 
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: 10.31 on 10/20/2020
Period of Record Monthly Statistics for 403922073353501
Elevation 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
Jan5.606.468.789.8612.2114.8815.5344
Feb5.108.0310.1312.2613.9414.9315.3328
Mar-3.768.059.4611.7213.4314.4715.0942
Apr6.317.539.1611.5013.7214.6215.5427
May5.587.069.6011.1813.0314.0515.9533
Jun4.646.257.389.5310.6212.0515.0442
Jul-1.133.126.138.529.7110.5912.7040
Aug1.302.845.627.668.8310.1411.4134
Sep2.103.695.437.188.7910.3711.2644
Oct-1.224.287.499.3010.6612.2013.3134
Nov3.067.319.3910.7212.1113.6014.7825
Dec3.415.107.619.1112.0413.4615.5139
.As of 1/16/2021 16:54-2
   Statistics 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
12/05/4610/20/20465
Lowest WLDate of Lowest WLHighest WLDate of Highest WL
-3.7603/23/8315.9505/08/57

Groundwater Levels Options

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

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