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DESCRIPTION:

Latitude 40°36'55",   Longitude 79°43'07"   NAD27

Allegheny County, Pennsylvania, Hydrologic Unit 05010009

Drainage area: 11,410 square miles

Datum of gage: 736.36 feet above   NGVD29.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	1991-12-15	2017-09-23
Daily Data
Discharge, cubic feet per second	1938-10-01	2017-09-22	28847
Daily Statistics
Discharge, cubic feet per second	1938-10-01	2017-07-09	28771
Monthly Statistics
Discharge, cubic feet per second	1938-10	2017-07
Annual Statistics
Discharge, cubic feet per second	1939	2017
Peak streamflow	1936-03-18	2015-12-28	79
Field measurements	1930-11-22	2017-07-10	496
Field/Lab water-quality samples	1957-11-18	1981-09-25	33
Water-Year Summary	2006	2016	11

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