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Available data

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Continuous data

2 data types available - data from 2011-06-09 to 2026-08-08

Daily data

1 data types available - data from 1961-08-01 to 2026-08-06

Field measurements

2 data types available - data from 2011-06-20 to 2026-06-15

Discrete sample data

33 Observed properties (data types) available - with data from 1961-09-20 to 1962-02-06

3 Sampling activities

Peak measurements

2 data types available - with data from 1936-03-19 to 2025-05-24

Statistical tables for select daily data types

1 data types available - data from 1961-08-01 to 2026-08-06

Important information about this monitoring location

The elevation of this gage is 254.31 ft above NAVD of 1988. To obtain stream water surface elevation values in NAVD88, add 254.31 feet to gage height values.

Location details and information

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Operated in cooperation with:

Town of Putnam WPCA

Metadata Element	Location Metadata	Metadata Code
Agency	U.S. Geological Survey	USGS
Location identification number	01125490	n/a
Location name	LITTLE RIVER AT HARRISVILLE, CT	n/a
Site type	Stream	ST
Decimal latitude (WGS84)	41.92784444444444	n/a
Decimal longitude (WGS84)	-71.93000833333333	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	Northeastern Connecticut Planning Region	150
Country	United States of America	n/a
Altitude of gage/land surface	254.31 feet	n/a
Method altitude determined	Level or other surveyed method.	L
Altitude accuracy	0.01 feet	n/a
Altitude datum	North American Vertical Datum of 1988	NAVD88
Subbasin hydrologic unit	Quinebaug River	01100001
Drainage basin		n/a
Date of first construction		n/a
Drainage area	35.8 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 Little River at Harrisville, CT - USGS-01125490