Available data

Select data types to graph from categories based on the way the data were collected.

1 data types available - data from 2025-09-11 to 2026-09-08

1 data types available - data from 2025-09-12 to 2026-09-07

3 data types available - data from 1992-02-06 to 2026-09-08

95 Observed properties (data types) available - data from 1992-02-06 to 2022-10-06

10 Sampling activities

1 data types available - data from 2025-09-12 to 2026-09-07

Zoom out to see link to My Favorites

Operated in cooperation with:

Metadata Element	Location Metadata	Metadata Code
Agency	U.S. Geological Survey	USGS
Location identification number	405012073293501	n/a
Location name	N 11823. 1	n/a
Site type	Well	GW
Decimal latitude (WGS84)	40.8366666666667	n/a
Decimal longitude (WGS84)	-73.4929444444444	n/a
Latitude-longitude method	Interpolated from digital map	N
Latitude-longitude accuracy	Accurate to + or - .1 sec (Differentially-Corrected GPS).	1
District	New York	36
State	New York	36
County	Nassau County	059
Country	United States of America	n/a
Altitude of gage/land surface	209 feet	n/a
Method altitude determined	Level or other surveyed method.	L
Altitude accuracy	0.1 feet	n/a
Altitude datum	National Geodetic Vertical Datum of 1929	NGVD29
Subbasin hydrologic unit	Southern Long Island	02030202
Drainage basin		n/a
Date of first construction	19910104	n/a
Drainage area		n/a
Contributing drainage area		n/a
Time zone abbreviation	EST	n/a
Site honors Daylight Saving Time	N	n/a
National aquifer	Northern Atlantic Coastal Plain aquifer system	S100NATLCP
Local aquifer	Magothy Aquifer	211MAGT
Local aquifer type		n/a
Well depth	535 feet	n/a
Hole depth		n/a
Source of depth data		n/a