USGS Current Conditions for USGS 01174500 EAST BRANCH SWIFT RIVER NEAR HARDWICK, MA

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ICE EFFECTS ON STREAMFLOW

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.

* IMPORTANT: Next Generation Station Page

USGS 01174500 EAST BRANCH SWIFT RIVER NEAR HARDWICK, MA

PROVISIONAL DATA SUBJECT TO REVISION

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LOCATION--Lat 42° 23'36", long 72° 14'21", Worcester County, Hydrologic Unit 01080204, on left bank 100 ft above spillway of regulating dam at Quabbin Reservoir and 4.6 mi northwest of Hardwick.
DRAINAGE AREA--43.7 mi².
PERIOD OF RECORD--Discharge: January 1937 to current year. Published as "near Dana" January 1937 to September 1939.
Water-quality records: Water year 1957.
GAGE--Data Collection Platform with satellite telemeter. Datum of gage is 504.06 ft above NAVD 1988. Prior to May 13, 2020, datum of gage reported as 504.70 ft above NGVD 1929. Concrete spillway since March 12, 1940.

This gage is monitored in cooperation with the Massachusetts Department of Conservation and Recreation, Division of Water Supply Protection, Office of Watershed Management, with funding from the Massachusetts Water Resources Authority .