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42o01'22", long 71o34'22",
Worcester County, Hydrologic Unit 01090003, on left bank about 0.7
miles downstream of Central Street bridge, and 0.6 miles southeast of
DRAINAGE AREA--263 mi2.
PERIOD OF RECORD--April 2007 to September 2009, September 2012 to current year.
GAGE--Water-stage recorder with telephone telemeter. Elevation of gage, about 200 ft above National Geodetic Vertical Datum of 1929, from topographic map.
REMARKS--Flow regulated by upstream dams and ponds and occasional backwater from downstream dam.
WATER QUALITY RECORDS
PERIOD OF RECORD--Water temperature, specific conductance, pH, and dissolved oxygen, July 1969 to December 1981; Water temperature, specific conductance, and turbidity, September 2012 to current year.
PERIOD OF RECORD--Air temperature and precipitation, September 2012 to current year.
INSTRUMENTATION--Water temperature, specific conductance, and turbidity monitor, air temperature monitor, and heated tipping-bucket precipitation gage.
COOPERATION BY--Massachusetts Department of Environmental Protection, Office of Watershed Management
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