USGS Water-Year Summary 2020
01120790 NATCHAUG RIVER AT MARCY RD. NEAR CHAPLIN, CT
LOCATION - Lat 41°48'58.21", long 72°06'22.21" referenced to North American Datum of 1983, Windham County, CT, Hydrologic Unit 01100002, located on right bank approximately 20 ft. from bridge on Marcy Road, 500 ft. from Natchaug Street, which is off of State Route 198, also known as Phoenixville Road.
DRAINAGE AREA - 66.5 mi².
PERIOD OF RECORD - Oct. 2006 to current year.
GAGE - Water-stage recorder. Datum of gage is 352.86 ft above North American Vertical Datum of 1988. Satellite telemetry at station.
EXTREMES FOR PERIOD OF RECORD - Minimum discharge, 0.62 ft³/s, Oct. 9, 2007.
PERIOD OF DAILY RECORD - WATER TEMPERATURE: Nov. 20, 2015 to current.
INSTRUMENTATION - A KPSI SDI-12 water temperature sensor is attached to the orifice arrangement with a separate 1" black irrigation line.
EXTREMES FOR PERIOD OF DAILY RECORD - WATER TEMPERATURES: Maximum, 26.2°C Jul. 3, 2017; minimum, -0.3°C on many days during winter periods.