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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
- For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
- Not all sites have reports available for every water year.
USGS Water-Year Summary 2024
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.
SURFACE-WATER RECORDS
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.
REMARKS - Water Year 2022-2023: Records good except for periods of estimated discharges, which are poor.
Water Years 2019-2021: Records good except for periods of estimated discharges, which are fair.
Water Year 2018: Record considered good, except for the period from 4/26/18 - 9/10/18 and estimated discharge which is rated fair.
Water Years 2014-2017: Records good except for periods of estimated discharges, which are fair.
EXTREMES FOR PERIOD OF RECORD - Minimum discharge, 0.62 ft³/s, Oct. 9, 2007.
WATER-QUALITY RECORDS
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, 28.8°C, Jul. 23, 2016, Aug. 12, 2016, Jul. 4, 2018; minimum, -0.3°C on many days during winter periods.
