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1 data types available - data from 2026-03-16 to 2026-07-09

0 data types available

3 data types available - data from 1982-12-20 to 2026-07-09

196 Observed properties (data types) available - with data from 1986-07-24 to 1988-04-07

3 Sampling activities

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Metadata Element	Location Metadata	Metadata Code
Agency	U.S. Geological Survey	USGS
Location identification number	404253073395601	n/a
Location name	N 9945. 1	n/a
Site type	Well	GW
Decimal latitude (WGS84)	40.714944	n/a
Decimal longitude (WGS84)	-73.66525	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	74.98 feet	n/a
Method altitude determined	GNSS2 - Level 2 Quality Survey Grade Global Navigation Satellite System	X
Altitude accuracy	0.15 feet	n/a
Altitude datum	North American Vertical Datum of 1988	NAVD88
Subbasin hydrologic unit	Sandy Hook-Staten Island	02030104
Drainage basin		n/a
Date of first construction	19820514	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	Glacial Aquifer, Upper	112GLCLU
Local aquifer type		n/a
Well depth	67 feet	n/a
Hole depth	67 feet	n/a
Source of depth data		n/a

Monitoring location N 9945. 1 - USGS-404253073395601