STATION.--03049640 ALLEGHENY RIVER AT LOCK AND DAM NO. 3 AT ACMETONIA, PA
LOCATION.--Lat 40`32'10", long 79`48'54", Westmoreland County, Hydrologic Unit 05010009, on left bank 15 ft upstream from upper gate on river wall, at river mile 14.5.
DRAINAGE AREA.--11,592 square miles.
PERIOD OF RECORD.-- GAGE HEIGHT: October 2015 to current year. SPECIFIC CONDUCTANCE: October 2004 to current year. WATER TEMPERATURE: October 2004 to current year. DISSOLVED OXYGEN: October 2004 to current year.
GAGE.--Datum of gage is 725.2 ft above North American Vertical Datum of 1988. Prior to February 15, 2024, the datum of gage was reported as 725.8 ft above National Geodetic Vertical Datum of 1929 (NGVD29). Prior to November 4, 2022, the datum of gage was erroneously reported as 740 ft above NGVD29. Satellite telemetry at station.
COOPERATION.--Funding for the operation of this station provided by the U.S. Army Corps of Engineers, Pittsburgh District.
REMARKS.--Automated sampler interfaced with a data collection platform with 60-minute recording interval.
GAGE HEIGHTS OF IMPORTANCE.-
Supplied by NWS: Action stage-15 ft; Flood stage-17 ft; Moderate flood stage-20 ft; Major flood stage-23 ft.