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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.
LOCATION--Lat 41o38'28", long
71o26'42", Washington County, Hydrologic Unit
01090004, on right bank 45 ft upstream from Old Forge Dam in North
Kingstown, 1.5 mi south of East Greenwich, and 2.5 mi upstream from
DRAINAGE AREA--22.9 mi2.
PERIOD OF RECORD--August 1940 to current year. Prior to October 1977, published as "Potowomut River."
Water-quality records: water years 1977-81.
GAGE--Data Collection Platform with satellite telemeter. Datum of gage is 4.56 ft above NAVD 1988. Datum of gage previously reported as 5.42 ft above NGVD 1929.
REMARKS--Flow affected by diversions for municipal supply of East Greenwich, North Kingstown, Warwick, and Quonset Point (formerly U.S. Naval establishment).
COOPERATION BY--Rhode Island Water Resources Board
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Value Jun 2