Important Legacy real-time page

Available data

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

Learn about the data collection categories

Continuous data

2 data types available - data from 2006-07-21 to 2026-07-29

Daily data

1 data types available - data from 1965-10-01 to 2026-07-27

Field measurements

2 data types available - data from 2006-07-20 to 2026-06-23

Discrete sample data

689 Observed properties (data types) available - with data from 2016-06-06 to 2016-08-03

28 Sampling activities

Statistical tables for select daily data types

1 data types available - data from 1965-10-01 to 2026-07-27

Important information about this monitoring location

The elevation of this gage is 226.15 ft above NAVD of 1988. To obtain stream water surface elevation values in NAVD88, add 226.15 feet to gage height values.

Location details and information

Zoom out to see link to My Favorites

Use Explore USGS Water Data to discover additional data near this location

Operated in cooperation with:

Town of Newtown

Metadata Element	Location Metadata	Metadata Code
Agency	U.S. Geological Survey	USGS
Location identification number	01203510	n/a
Location name	POOTATUCK RIVER AT SANDY HOOK, CT	n/a
Site type	Stream	ST
Decimal latitude (WGS84)	41.41925	n/a
Decimal longitude (WGS84)	-73.2821	n/a
Latitude-longitude method	Interpolated from digital map	N
Latitude-longitude accuracy	Accurate to + or - .01 sec (Differentially-Corrected GPS).	H
District	Connecticut	09
State	Connecticut	09
County	Western Connecticut Planning Region	190
Country	United States of America	n/a
Altitude of gage/land surface	226.15 feet	n/a
Method altitude determined	GNSS2 - Level 2 Quality Survey Grade Global Navigation Satellite System	X
Altitude accuracy	0.16 feet	n/a
Altitude datum	North American Vertical Datum of 1988	NAVD88
Subbasin hydrologic unit	Housatonic	01100005
Drainage basin		n/a
Date of first construction		n/a
Drainage area	24.8 square miles	n/a
Contributing drainage area		n/a
Time zone abbreviation	EST	n/a
Site honors Daylight Saving Time	Y	n/a
National aquifer		n/a
Local aquifer		n/a
Local aquifer type		n/a
Well depth		n/a
Hole depth		n/a
Source of depth data		n/a

Monitoring location Pootatuck River at Sandy Hook, CT - USGS-01203510