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ALL DATA ARE EASTERN STANDARD TIME

USGS 04263000 OSWEGATCHIE RIVER NEAR HEUVELTON NY

PROVISIONAL DATA SUBJECT TO REVISION

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This station is operated in cooperation with:
   Brookfield Renewable Power
   U.S. Geological Survey


LOCATION.--Lat 44°35'58", long 75°22'44" referenced to North American Datum of 1983, St. Lawrence County, NY, Hydrologic Unit 04150302, on right bank 1.5 mi downstream from Beaver Creek, and 2.5 mi upstream from Heuvelton.
DRAINAGE AREA.--986 mi2.
PERIOD OF RECORD.--June 1916 to current year.
REVISED RECORDS.--WDR NY-82-1: Drainage area.
GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 288.85 ft above NGVD of 1929. Prior to Sept. 16, 1916, nonrecording gage at same site and datum.
REMARKS.--Records good except those for estimated daily discharges, which are poor. Entire flow regulated by Cranberry Lake (station 04260990); slight diurnal fluctuation at low flow and medium flow caused by powerplants. During high stages on Grass River, part of flow of that stream may pass through Upper Lake, Indian Creek, and Lower Lake and enter Oswegatchie River at Rensselaer Falls, 4.5 mi upstream from station. In October 1973, a dike was installed on Indian Creek to prevent overflow of Grass River during high flows. Satellite gage-height telemeter at station.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 19,600 ft3/s, Apr. 6, 1960, gage height, 10.36 ft; minimum discharge, 99 ft3/s, Aug. 4, 1991, gage height, 0.49 ft; minimum gage height, 0.42 ft, Sept. 11, 2002, but may have been lower during period of no gage-height record Sept. 7, 1960.
Derived from NY Annual Water-Data Report 2013

Peak Flow and Stage Information
Available Parameters Available Period
All 2 Available Parameters for this site
  
00060 Discharge 2007-10-01  2014-12-19
00065 Gage height 2014-08-21  2014-12-19

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Summary of all available data for this site
Instantaneous-data availability statement


Discharge, cubic feet per second

Most recent instantaneous value: 2,000   12-19-2014  20:15 EST
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Daily discharge, cubic feet per second -- statistics for Dec 19 based on 97 years of record more
Min
(1935)
25th
percen-
tile
Median Mean Most Recent
Instantaneous
Value Dec 19
75th
percen-
tile
Max
(1921)
431 1140 1500 1900 2000 2240 6250


Gage height, feet

Most recent instantaneous value: 2.79   12-19-2014  20:15 EST
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