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LOCATION--Lat 42° 38’12", long 71°
18’09", Middlesex County, Hydrologic Unit 01070005, on right
bank 300 ft downstream from Rogers Street Bridge at Lowell, 0.3 mi
downstream from River Meadow Brook, and 0.8 mi upstream from
DRAINAGE AREA--Total above gage, 400 mi2; net above gage, 307 mi2 — diversion as needed from 92.6 mi2 for use by Boston metropolitan district.
PERIOD OF RECORD--Discharge: October 1936 to current year. October, November 1936 monthly discharge only, published in WSP 1301.
Water-quality records: Water years 1953, 1967–74.
REVISED RECORDS--WDR MA-RI-84-1: drainage area.
GAGE--Data Collection Platform with satellite telemeter. Datum of gage is 66.60 ft above NAVD 1988. Datum previously reported as 67.41 ft above NGVD 1929.
REMARKS--Low flow regulated by mills upstream. Daily discharge includes undiverted water from 92.6 mi2 in basins of Sudbury River and Lake Cochituate. Prior to December 1961, diversion upstream for use by city of Lowell.
COOPERATION BY--Massachusetts Department of Conservation and Recreation, Office of Water Resources.
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