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. Concrete control since September 1936. Datum of gage is 849.67 ft above National Geodetic Vertical Datum of 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.