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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	2022-08-08
Daily Data
Discharge, cubic feet per second	1938-10-01	2022-08-07	30625
Daily Statistics
Discharge, cubic feet per second	1938-10-01	2022-01-09	30417
Monthly Statistics
Discharge, cubic feet per second	1938-10	2022-01
Annual Statistics
Discharge, cubic feet per second	1939	2022
Peak streamflow	1936-03-18	2021-07-18	84
Field measurements	1930-11-22	2022-06-24	511
Field/Lab water-quality samples	1957-11-18	1981-09-25	33
Water-Year Summary	2006	2021	16
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