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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
- For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
- Not all sites have reports available for every water year.
USGS Water-Year Summary 2024
394337079544201 MONONGAHELA RIVER AT POINT MARION, PA
LOCATION - Lat 39°43'37", long 79°54'42" referenced to North American Datum of 1927, Fayette County, PA, Hydrologic Unit 05020003,
WATER-QUALITY RECORDS
PERIOD OF RECORD - May 2009 to current year.
PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: May 2009 to current year.
pH: May 2009 to current year.
WATER TEMPERATURE: May 2009 to current year.
INSTRUMENTATION - Water-quality monitor May 2009 to current year. Water-quality monitor operated year round.
EXTREMES FOR PERIOD OF RECORD -
SPECIFIC CONDUCTANCE: Maximum recorded, 846 µS/cm, Aug. 3, 2009; minimum recorded, 118 µS/cm, Dec. 22, 2019.
pH: Maximum recorded, 8.7 standard units, Nov. 27, 2014; minimum recorded, 6.9 standard units on July 30, 2017.
WATER TEMPERATURE: Maximum recorded, 31.2°C, July 8, 2010; minimum recorded, -0.5°C, Feb. 3, 4, 2014, Feb. 23, 24, 25, 2015.
