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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° 37’57", long 72° 07 25", Worcester County, Hydrologic Unit 01080202, on right bank 500 ft downstream from Birch Hill Dam, and 1.5 mi upstream from USGS gage 01164000 in South Royalston,
DRAINAGE AREA--About 187 mi2.
PERIOD OF RECORD--Stage: December 2010 to current year.
RESERVOIR ELEVATION--October 2002 to current year(data are provisional used for flood monitoring only;data are not published).
GAGE--Data Collection platform with satellite telemeter. Datum of gage is 720 ft above North American Datum of 1988, from topographic map
REMARKS-- Flow regulated by Lake Manomonac and other reservoirs, by mills and powerplants prior to 1955, and at high flow by Birch Hill Dam since 1941.
COOPERATION BY--U. S. Army Corps of Engineers

NOTE: The precipitation data for this site are temporary and will only be displayed for 120 days. Time series of 15-minute or cumulative daily values WILL NOT be available for retrieval following the 120-display period. Although the instrumentation is calibrated at least once/year, the temporary classification means that documented routine inspections and other quality assurance measures are not performed that would make the data acceptable for archival, retrieval, or future use in general scientific or interpretive studies.

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This station managed by the Northborough MA Field Office.

Available Parameters Available Period
All 4 Available Parameters for this site
00045 Precipitation 2017-05-31  2017-09-14
00060 Discharge 2017-05-24  2017-09-21
00062 Elevation, reservoir 2017-05-24  2017-09-21
00065 Gage height 2017-05-24  2017-09-21

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Discharge, cubic feet per second

Most recent instantaneous value: 60.1 09-21-2017   06:30 EDT
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Gage height, feet

Most recent instantaneous value: 1.49 09-21-2017   06:30 EDT
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