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Scheduled Maintenance Notice
USGS will be performing maintenance on the time series data processing system beginning at 09:00 EDT on September 10, 2026. During this period, delivery of the latest time series data will be delayed. The maintenance is expected to finish within 2 hours, after which all backlogged time series data will be processed and delivered to WDFN web portals and APIs.

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Available data

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

1 data types available - data from 2007-10-01 to 2026-08-25

1 data types available - data from 1997-07-30 to 2026-08-24

3 data types available - data from 1997-05-28 to 2026-08-25

44 Observed properties (data types) available - with data from 1997-07-29 to 2014-04-22

3 Sampling activities

1 data types available - data from 1997-07-30 to 2026-08-24

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Metadata Element	Location Metadata	Metadata Code
Agency	U.S. Geological Survey	USGS
Location identification number	402350073583901	n/a
Location name	250771-- Sandy Hook 2 Obs	n/a
Site type	Well	GW
Decimal latitude (WGS84)	40.3973312448557	n/a
Decimal longitude (WGS84)	-73.9770821507633	n/a
Latitude-longitude method	Interpolated from map	M
Latitude-longitude accuracy	Accurate to + or - 5 sec.	F
District	New Jersey	34
State	New Jersey	34
County	Monmouth County	025
Country	United States of America	n/a
Altitude of gage/land surface	8.4 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	Sandy Hook-Staten Island	02030104
Drainage basin		n/a
Date of first construction	19961205	n/a
Drainage area		n/a
Contributing drainage area		n/a
Time zone abbreviation	EST	n/a
Site honors Daylight Saving Time	Y	n/a
National aquifer	Northern Atlantic Coastal Plain aquifer system	S100NATLCP
Local aquifer	Englishtown Formation	211EGLS
Local aquifer type	Confined single aquifer	C
Well depth	278 feet	n/a
Hole depth	310 feet	n/a
Source of depth data	D	n/a