USGS -- Groundwater Watch

Site Number: 405434072421401 - S 74302. 1

DESCRIPTION:: Latitude 40°54'22.8", Longitude 72°42'31.7" NAD83
Suffolk County, New York, Hydrologic Unit 02030202; Well depth: 44. feet
Land surface altitude: 36.5feet 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	1983-05-11	2020-08-24	199
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 405434072421401

Most recent data value: 17.95 on 8/24/2020
Period of Record Monthly Statistics for 405434072421401
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.
Month Lowest
Median 10th
%ile 25th
%ile 50th
%ile 75th
%ile 90th
%ile Highest
Median Number
of
Years
Jan 17.12 17.28 17.78 19.07 20.06 20.91 20.93 13
Feb 17.44 17.47 18.10 18.29 19.53 20.09 20.14 10
Mar 17.64 18.39 18.97 19.55 20.48 20.70 21.10 32
Apr 18.14 18.25 19.06 19.43 20.57 22.01 22.57 15
May 18.03 18.09 18.73 19.53 20.77 21.45 21.55 16
Jun 17.77 17.91 18.44 19.27 20.53 21.30 22.12 17
Jul 17.30 17.48 18.04 18.82 20.00 20.62 20.94 14
Aug 17.04 17.29 17.61 18.40 19.13 19.98 20.33 16
Sep 17.20 17.30 17.80 18.53 19.43 20.49 20.71 17
Oct 16.75 16.91 17.49 18.85 19.29 20.74 21.18 14
Nov 16.67 16.78 17.36 17.66 19.18 20.13 20.35 11
Dec 16.84 17.05 17.50 18.55 19.48 20.68 20.72 14
.As of 1/16/2021 17:06-2
Statistics Options

View month/year statistics

Periodic Groundwater Data

Groundwater hydrograph for well 405434072421401

Summary for Period of Record Periodic Water Levels

Elevation above NGVD 1929, feet

Approved Periodic Water Level Values

Begin Date

End Date

Number of Values

05/11/83

08/24/20

199

Lowest WL	Date of Lowest WL	Highest WL	Date of Highest WL
16.67	11/28/16	22.88	04/07/10

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

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

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