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Water-Year Summary for Site 03077500

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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.
Available Parameters
00010 Temperature, water(Max.,Min.,Mean)  

Water year 2018: 2018-10-01 to 2019-09-30
 

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USGS Water-Year Summary 2018
03077500 YOUGHIOGHENY RIVER AT YOUGHIOGHENY RIVER DAM, PA
LOCATION - Lat 39°48'19", long 79°21'52" referenced to North American Datum of 1927, Somerset County, PA, Hydrologic Unit 05020006, on right bank 800 ft upstream from bridge on State Highway 281, 0.2 mi downstream from Youghiogheny River Dam, 0.2 mi south of Confluence, 0.7 mi upstream from Casselman River, and at river mile 73.7.
DRAINAGE AREA - 436 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - September 1904 to September 1913 (gage heights only), October 1939 to September 1991, 2005 -2008 (discharge measurements only),2009 to current year. Monthly discharge only for October 1939 to April 1940, published in WSP 1305. Figures of daily discharge prior to January 1911, published in WSP 169, 205, 243, 263, and 283 are unreliable and should not be used. September 1904 to September 1922 (gage heights only) in reports of Water Supply Commission of Pennsylvania or Pennsylvania Department of Forests and Waters. Published as "at Confluence" 1904-1922.
GAGE - Water-stage recorder and acoustic Doppler velocity meter (installed Oct 2011). Datum of gage is 1,310.17 ft above National Geodetic Vertical Datum of 1929 (U.S. Army Corps of Engineers benchmark). 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.
REMARKS - Gage heights can be affected by backwater from the Casselman River. Discharge is computed by using the Index-Velocity Method at a gage height of 4.30 ft and higher. Flow regulated since 1925 by Deep Creek Reservoir and since 1943 by Youghiogheny River Lake 0.2 mi upstream. Records for water year 2014 are fair except those for estimated daily discharges, which are poor. Records for water year 2015 are fair except those for estimated daily discharges, which are poor. Records for water year 2016 are fair except those for estimated daily discharges, which are poor. Records for water year 2017 are fair except those for estimated discharges, which are poor.
WATER-QUALITY RECORDS
PERIOD OF RECORD - 2002 to current year.
PERIOD OF DAILY RECORD - WATER TEMPERATURE: August 2005 to September 2006; October 2007 to current year. SPECIFIC CONDUCTANCE: August 2005 to September 2006. pH: August 2005 to September 2006. DISSOLVED OXYGEN: August 2005 to September 2006.
COOPERATION - Station established and maintained by the U.S. Geological Survey in cooperation with the U.S. Corps of Engineers, Pittsburgh District. Water-quality samples were collected as part of the Pennsylvania Department of Environmental Protection Water-Quality Network (WQN) with cooperation from the Pennsylvania Department of Environmental Protection.
INSTRUMENTATION - Water temperature sensor interfaced with a data collection platform with 60-minute recording interval.
REMARKS -

As of October 2013, results from discrete water quality samples collected at this site are available through the U.S. Geological Survey National Water Information System web interface on the "Water Quality for the Nation" webpage. As of October 2013, results from discrete water quality samples collected at this site are available through the U.S. Geological Survey National Water Information System web interface on the "Water Quality for the Nation" webpage. Analyses for pH, water temperature, specific conductance, and dissolved oxygen were performed on site. All other sample analyses were performed at the Pennsylvania Department of Environmental Protection laboratory in Harrisburg, PA. Occasionally, values for filtered parameters may exceed values for the corresponding unfiltered parameter. These results are within the limits of analytical precision and methods.

Historically, water temperatures below 0 degrees Celsius were not reported. Water temperature sensors now have the ability to accurately read water temperatures below 0 degrees Celsius. 

Cross-sectional water quality data is available upon request.

For water year 2014, water temperature records rated fair. For water year 2015, water temperature records are rated fair. For water year 2016, water temperature records are rated fair.  For water year 2017, records for water temperature are rated fair.

EXTREMES FOR PERIOD OF DAILY RECORD - WATER TEMPERATURE: Maximum, 25.8°C, Oct 12, 2016; minimum, 1.2°C, March 10, 2015.