USGS Water-Year Summary 2019
03049501 Allegheny River (lower pool) at Natrona, PA
LOCATION - Lat 40°36'46.58", long 79°43'10.25" referenced to North American Datum of 1983, Allegheny County, PA, Hydrologic Unit 05010009, on right bank 300 ft downstream from dam at lock 4 at Natrona, 5.8 mi downstream from Kiskiminetas River, at river mile 24.3.
DRAINAGE AREA - 11,410 mi².
PERIOD OF RECORD - September 2016 to present.
GAGE - Water-stage recorder. Datum of gage is 725.8 ft above National Geodetic Vertical Datum of 1929. Satellite telemetry at station.
COOPERATION - Station established and maintained by the U.S. Geological Survey in cooperation with the U.S. Army Corps of Engineers, Pittsburgh District.