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This site serves water-level measurements under multiple vertical datums

Site Number: 405348072370401 - S 46538. 1

Groundwater
Watch Help Page

DESCRIPTION:: Latitude 40°53'40", Longitude 72°37'09" NAD27
Suffolk County, New York, Hydrologic Unit 02030202; Well depth: 56.8 feet
Land surface altitude: 61.3feet above NGVD29.
Well completed in "Northern Atlantic Coastal Plain aquifer system" (S100NATLCP) national aquifer.
Well completed in "Glacial Aquifer, Upper" (112GLCLU) local aquifer

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Field groundwater-level measurements	1972-12-01	2020-07-30	233
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

Monthly statistics plot for 405348072370401

Most recent data value: 26.36 on 7/30/2020
Period of Record Monthly Statistics for 405348072370401
Groundwater level above NAVD 1988, feet
All Approved Continuous & Periodic Data Used In Analysis
Note: Highlighted values in the table indicate closest statistic to the most recent data value.
Month Lowest
Median 10th
%ile 25th
%ile 50th
%ile 75th
%ile 90th
%ile Highest
Median Number
of
Years
Jan 20.49 21.31 22.74 24.42 26.48 29.20 30.25 20
Feb 20.8 21.0 22.58 26.86 29.26 30.45 30.68 12
Mar 21.04 22.28 23.85 25.9 27.07 29.67 30.48 38
Apr 23.27 24.00 25.38 26.7 28.95 31.71 31.91 16
May 25.08 25.2 25.71 28.1 30.34 31.45 31.56 15
Jun 21.28 24.25 25.96 28.04 30.22 30.92 31.62 22
Jul 24.09 24.9 25.80 27.18 29.27 30.17 30.28 19
Aug 23.95 23.96 24 26.31 28.1 29.60 29.65 14
Sep 22.97 23.05 23.55 24.65 26.56 28.1 28.82 21
Oct 21.99 22.30 23.20 24.5 26.45 27.42 28.24 18
Nov 21.66 21.77 22.61 24 26.12 29.56 30.08 12
Dec 21.48 21.72 22.29 23.22 25.46 29.64 29.94 14
.As of 1/16/2021 17:06-2
Statistics Options

View month/year statistics
This site serves water-level measurements under multiple vertical datums (NGVD29) - The measurements have been converted to NAVD88

Periodic Groundwater Data

Groundwater hydrograph for well 405348072370401

Summary for Period of Record Periodic Water Levels

Groundwater level above NAVD 1988, feet

Approved Periodic Water Level Values

Begin Date

End Date

Number of Values

12/01/72

07/30/20

233

Lowest WL	Date of Lowest WL	Highest WL	Date of Highest WL
20.49	01/18/17	33.02	04/23/10

	Groundwater Levels Options
	View latest data on NWISWeb
	Download groundwater levels in text format
This site serves water-level measurements under multiple vertical datums (NGVD29) - The measurements have been converted to NAVD88

^*References to non-Department of the Interior (DOI) products do not constitute an endorsement by the DOI.

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URL: https://groundwaterwatch.usgs.gov/AWLSites.asp
Page Contact Information: Contact the GroundWater Watch Support Team
Last update: Thursday, September 26, 2019 at 13:24

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