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The formation of ice on rivers can cause discharge values to appear unusually high. Display of these erroneous discharge data may result in improper assessment of flow conditions and misuse of the data. For this reason, display of discharge values for streams significantly affected by ice may be disabled from view. Display of discharge data will resume when ice conditions are no longer present. Discharge values for streams minimally affected by ice will continue to be displayed. Flows for streams with these conditions appear to increase during the night and decrease to near-base-line conditions around midday. To estimate the correct discharge for these streams, use the flow rate that corresponds to the bottom of the discharge curve, rather than the peak that corresponds to the top of the curve. Note that this method of estimation is possible only when no surface runoff is occurring. Daily mean discharges for periods of both significant and minimal ice-effect will be estimated and published in the Annual Water-Data Report for the water year in which they occurred.



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LOCATION--Lat 42° 38’32", long 72° 13’34", Worcester County, Hydrologic Unit 01080202, on right bank 300 ft downstream from Tully Dam, 1.3 mi downstream from Lawrence Brook, 3.5 mi north of Athol, and 4.9 mi upstream from mouth.
DRAINAGE AREA--50.5 mi2.
PERIOD OF RECORD--Discharge: October 1915 to current year (data publication discontinued after September 30, 1990).
Water-quality records: Water years 1965-66.
REVISED RECORDS--WSP 451: 1916. WSP 1051: 1916(M), 1928. WSP 1301: 1917-35(M), 1937(M). WDR MA-RI-84-1: drainage area.
GAGE--Data Collection Platform with satellite telemeter. Datum of gage is 613.71 ft above National Geodetic Vertical Datum of 1929 (U.S. Army Corps of Engineers benchmark). Prior to October 26, 1948, non-recording gage at site 0.2 mi upstream at datum 14.40 ft higher.
REMARKS-- Flow regulated by Tully Lake since 1948.
COOPERATION BY--U.S. Army Corps of Engineers

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This station managed by the Northborough MA Field Office.

Available Parameters Available Period
All 1 Available Parameters for this site
00060 Discharge 1989-10-05  1990-09-30

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Summary of all available data for this site
Instantaneous-data availability statement
*** There are no data available on the Waterdata system for the time period specified,
    although data may be available in the files of the local USGS office operating the station.