LOCATION--Lat 42° 40’57", long 72° 06’56", Worcester County, Hydrologic Unit 01080202, on right bank 100 ft downstream from highway bridge, 3 mi upstream from mouth, and 3.5 mi west of Winchendon.
DRAINAGE AREA--19.4 mi².
PERIOD OF RECORD--Discharge: May 1916 to current year. Monthly discharge only October 1917 to July 1918 (published in WSP 1301) and September 1935 to September 1936.
Water-quality records: August 1994.
REVISED RECORDS--WSP 451: 1916. WSP 871: drainage area. WSP 1051: 1919, 1922–24. WSP 1301: 1917(M), 1919–24(M),1926–27(M), 1929(M), 1931–35(M).
GAGE--Data Collection Platform with satellite telemeter. Datum of gage is 848.95 ft above NAVD 1988. Prior to May 11, 2020, datum reported as 849.67 ft above NGVD 1929. Prior to Sept. 11, 1936, non-recording gage on left bank at same datum.
REMARKS--Prior to 1962, occasional diurnal fluctuation at low flow by mill upstream; prior to 1953, regulation at low flow by mill and ponds..
COOPERATION BY--Massachusetts Department of Conservation and Recreation, Office of Water Resources.