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ALL DATA ARE EASTERN STANDARD TIME

USGS 03010820 ALLEGHENY RIVER AT OLEAN NY

PROVISIONAL DATA SUBJECT TO REVISION

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The 15-minute precipitation data for this station are temporary and will only be displayed for 120 days. 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.

 

LOCATION.--Lat 42°04'23", long 78°27'04" referenced to North American Datum of 1983, Cattaraugus County, NY, Hydrologic Unit 05010001, on right bank in sewage treatment facility pump house, 1.6 mi downstream from Olean Creek, in Olean.
DRAINAGE AREA.--1,192 mi2.
PERIOD OF RECORD.--August 2010 to current year.
GAGE.--Water-stage recorder. Elevation of gage is 1,405 ft above NGVD of 1929, from topographic map.
REMARKS.--Water Year 2014: Records good except those for estimated daily discharges, which are fair. Water Year 2015: Records fair except those for estimated daily discharges, which are poor.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 27,300 ft3/s, Dec. 2, 2010, gage height, 15.74 ft; minimum discharge, 129 ft3/s, Sept. 10, 2015, gage height, -1.10 ft.
EXTREMES OUTSIDE PERIOD OF RECORD.--Maximum discharge, 59,000 ft3/s, June 23, 1972, provided by the U.S. Army Corps of Engineers.

Peak Flow and Stage Information
This station managed by the NY Water Science Center, Ithaca.

Available Parameters Available Period
All 3 Available Parameters for this site
  
00045 Precipitation 2016-06-01  2016-09-29
00060 Discharge 2010-08-21  2016-09-29
00065 Gage height 2016-06-01  2016-09-29

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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: 136   09-29-2016   01:30 EST
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Daily discharge, cubic feet per second -- statistics for Sep 29 based on 6 years of record more
Most Recent
Instantaneous
Value Sep 29
Min
(2015)
25th
percen-
tile
Median Mean 75th
percen-
tile
Max
(2011)
136 221 246 281 420 537 1150


Gage height, feet

Most recent instantaneous value: -1.08   09-29-2016   01:30 EST
Graph of  Gage height, feet

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