LOCATION--Lat 42^o11'20", long 71^o45'56", Worcester County, Hydrologic Unit 01090003, on right bank, approximately 20 ft downstream from West Main Street bridge, 2 mi downstream from Kettle Brook, and 2.5 mi downstream from effluent discharge channel of Upper Blackstone Water Pollution Abatement District waste-water treatment plant, at Millbury, MA.
DRAINAGE AREA--71.4 mi².
PERIOD OF RECORD--July 2002 to current year.
GAGE--Data Collection Platform with satellite telemeter. Datum of gage is 379.35 ft above NAVD 1988, estimated from topographic map. Prior to May 4, 2020, datum of gage reported as 380 ft above NGVD 1929, estimated from topographic map.
REMARKS--Flows affected by effluent releases from Upper Blackstone Waste-Water Treatment Plant located approximately 2.5 mi upstream from gage. High flows may include diversion flood flows through Kettle Brook diversion system with mouth located approximately 2.0 mi upstream from gage.
COOPERATION--Upper Blackstone Water Pollution Abatement District

Photo of Blackstone River gage shelter at Millbury
Photo of Blackstone River control section under W. Main Street bridge
Photo of stage sensor and mounting block