USGS Current Conditions for USGS 01105500 EAST BRANCH NEPONSET RIVER AT CANTON, MA

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ICE EFFECTS ON STREAMFLOW

The formation of ice on rivers can cause discharge values to appear unusually high. Display of these erroneous discharge data may result in improper assessment of flow conditions and misuse of the data. For this reason, display of discharge values for streams significantly affected by ice may be disabled from view. Display of discharge data will resume when ice conditions are no longer present. Discharge values for streams minimally affected by ice will continue to be displayed. Flows for streams with these conditions appear to increase during the night and decrease to near-base-line conditions around midday. To estimate the correct discharge for these streams, use the flow rate that corresponds to the bottom of the discharge curve, rather than the peak that corresponds to the top of the curve. Note that this method of estimation is possible only when no surface runoff is occurring. Daily mean discharges for periods of both significant and minimal ice-effect will be estimated and published in the Annual Water-Data Report for the water year in which they occurred.

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USGS 01105500 EAST BRANCH NEPONSET RIVER AT CANTON, MA

PROVISIONAL DATA SUBJECT TO REVISION

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LOCATION--Lat 42° 09’16", long 71° 08’47", Norfolk County, Hydrologic Unit 01090001, on right bank 100 ft downstream from Washington Street Bridge at Canton, 200 ft downstream from Forge Pond Dam, and 900 ft downstream from Massapoag Brook.
DRAINAGE AREA--27.2 mi².
PERIOD OF RECORD--Discharge: October 1952 to current year.
Water-quality records: Water years 1959, 1967–68.
REVISED RECORDS--WSP 1901: drainage area.
GAGE--Data Collection Platform with satellite telemeter. Datum of gage is 79.40 ft above NAVD 1988, from Massachusetts Department of Public Works benchmark. Prior to May 12, 2020, datum of gage reported as 80.18 ft above NGVD 1929, from Massachusetts Department of Public Works benchmark.
REMARKS-- Flow regulated by Forge, Bolivar, Massapoag, and Reservoir Ponds, and other ponds upstream. Flow affected by diversions for municipal supply of Canton and Stoughton.
COOPERATION BY--Massachusetts Department of Conservation and Recreation, Office of Water Resources.