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The Massachusetts-Rhode Island office of the New England Water Science Center has transitioned to a new data management software package. While you may not notice this transition, some sites may have problems or delays in being updated. We are actively monitoring these conditions and resolving them as quickly as possible. For more information contact Richard Verdi at rverdi@usgs.gov or 508-490-5064. See the December 8th news entry at: https:/ /help.waterdata.usgs.gov/news

ICE EFFECTS ON STREAMFLOW During winter, ice formation may cause stage and discharge values to appear higher than expected. Ice effects may be minor (occurring only at night and early morning) with baseline flows obvious, or the effects may be major (stage constantly increases over several days or weeks) resulting in greatly erroneous discharge. Streamgages experiencing minor ice conditions will continue to display stage and discharge values to enable users to estimate the approximate base-line stage and discharge. Streamgages experiencing major ice conditions will have the discharge record temporarily disabled to prevent use of erroneous discharge values. The discharge record will resume when it is determined that ice conditions are no longer present. Daily mean discharges during periods of ice effect will be estimated after detailed data analysis.



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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 mouth.
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 67.41 ft above National Geodetic Vertical Datum of 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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This station managed by the Northborough MA Field Office.

Available Parameters Available Period
All 2 Available Parameters for this site
00060 Discharge 1990-09-30  2017-02-21
00065 Gage height 2007-10-01  2017-02-21

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Discharge, cubic feet per second

Most recent instantaneous value: 746 02-21-2017   20:30 EST
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Daily discharge, cubic feet per second -- statistics for Feb 21 based on 80 years of record more
Most Recent
Value Feb 21
Median Mean 75th
198 548 746 772 863 1020 2940

Gage height, feet

Most recent instantaneous value: 5.54 02-21-2017   20:30 EST
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