USGS Water-Year Summary 2018
01125490 LITTLE RIVER AT HARRISVILLE, CT
LOCATION - Lat 41°55'40.24", long 71°55'48.03" referenced to North American Datum of 1983, Windham County, CT, Hydrologic Unit 01100001, at bridge on Harrisville Rd., 0.5 mi. east of Harrisville and 1.25 mi. northwest of Putnam.
DRAINAGE AREA - 35.8 mi².
PERIOD OF RECORD - Discharge: Aug. 1961 to Sep. 1971, June 2011 to current year. Annual maximum: 1936, 1938, 1972 to 1976.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 254.3 ft. above North American Vertical Datum of 1988. Prior to June 2011, datum of gage reported as 254.9 ft. above National Geodetic Vertical Datum of 1929, at same location. Satellite telemetry at station.
EXTREMES FOR PERIOD OF RECORD - The lowest daily mean discharge of 0.30 ft³/s occurred on Sep. 22 and 24, 1964.