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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 412154071462901 RI-WEW 522 WESTERLY, RI

PROVISIONAL DATA SUBJECT TO REVISION

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LOCATION--Lat 41°21’54", long 71°46’29", Washington County, Hydrologic Unit 01090005, 350 ft northwest of intersection of Pound and Old Shore Roads, and 1.0 mi north of Dunn Corner in Westerly.
AQUIFER--Sand and gravel, glaciated regions; stratified deposits, undifferentiated aquifer.
WELL CHARACTERISTICS--Drilled observation water-table well, depth 16 ft, cased to 16 ft, open end.
INSTRUMENTATION--Data Collection Platform with telephone telemeter, July 2008 to current year. Digital recorder, November 2002 to September 2004. Monthly measurements, April 1966, January 1969 to October 2002, March 2005 to June 2008.
DATUM--Elevation of land-surface datum of gage is 44.06 ft above North American Vertical Datum of 1988, from topographic map. Measuring point: hole in rock cap, 0.72 ft above land-surface datum.
PERIOD OF RECORD--April 1966, January 1969 to current year.
COOPERATION BY--Rhode Island Water Resources Board.


Available Parameters Available Period
  
2008-10-01  2020-05-28








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