USGS Water-Year Summary 2023
03074998 Monongahela R at L&D4 Upper Pool at Charleroi, PA
LOCATION - Lat 40°08'53", long 79°53'32" referenced to North American Datum of 1983, Westmoreland County, PA, Hydrologic Unit 05020005, on right bank, 0.6 miles upstream of Charleroi Monessen bridge, and 1.5 miles downstream of interstate highway 70.
DRAINAGE AREA - 5213.00 mi²
REVISIONS HISTORY - Revisions: The datum of gage was erroneously reported as 717.9 ft above North American Vertical Datum of 1988 prior to February 20, 2024.
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 2017 to current year.
GAGE - Water stage recorder with reference staff gage. Datum of gage is 733.90 ft above North American Vertical Datum of 1988 (NAVD88) (from benchmark). Prior to February 20, 2024, the datum of gage was reported as 734.5 ft above National Geodetic Vertical Datum of 1929 or erroneously reported as 717.9 ft above NAVD88 depending on source. Satellite telemetry at site.
COOPERATION - Station established and maintained by the U.S. Geological Survey in cooperation with the U.S. Army Corps of Engineers, Pittsburgh District.
