USGS Water-Year Summary 2019
01516350 TIOGA RIVER NEAR MANSFIELD, PA
LOCATION - Lat 41°47'49", long 77°04'50" referenced to North American Datum of 1927, Tioga County, PA, Hydrologic Unit 02050104, on left bank on Township Route 754, 0.9 mi downstream from Slate Creek, and 0.7 mi south of Mansfield.
DRAINAGE AREA - 153 mi².
- WDR PA-84-2: 1980-83 (P). Gage height and discharge for Oct 30, 2017 peak were revised on Apr 2, 2018 based on computed instantaneous value instead of an inaccurate CSG reading.
PERIOD OF RECORD - July 1976 to current year.
GAGE - Water-stage recorder, crest-stage gage, water-quality monitor, and heated tipping bucket precipitation gage. Datum of gage is 1,121.28 ft above National Geodetic Vertical Datum of 1929. Prior to May 25, 1999, at site 0.3 mi upstream at same datum. Satellite and landline telemetry at station.
COOPERATION - Station established and maintained by the U.S. Geological Survey. Funding for the operation of this station is provided by the U.S. Army Corps of Engineers, Baltimore District and the U.S. Geological Survey.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood in September 1975 reached an approximate stage of 20.1 ft, from floodmarks, at original site 0.3 mi upstream, discharge, about 18,000 ft³/s.
PERIOD OF RECORD - Water years 1975 to current year.
PERIOD OF DAILY RECORD - WATER TEMPERATURE: October 1976 to September 1985; October 2015 to current year.
SPECIFIC CONDUCTANCE: October 1976 to September 1985; October 2015 to current year.
pH: October 1976 to September 1985; October 2015 to current year.
DISSOLVED OXYGEN: October 1976 to September 1977.
COOPERATION - 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.
Continuous water quality records were collected by the U.S. Geological Survey in cooperation with the U.S. Army Corps of Engineers, Baltimore District.
INSTRUMENTATION - Water-quality monitor interfaced with a data collection platform with 15-minute recording interval.
EXTREMES FOR PERIOD OF DAILY RECORD - WATER TEMPERATURE: Maximum, 31.0°C, Jul 18, 1982; minimum, -0.7°C, on Feb 27, 2019.
SPECIFIC CONDUCTANCE: Maximum, 1,110 microsiemens/cm, Jul 13, 2016; minimum, 38 microsiemens/cm, Feb 16, 2016.
pH: Maximum, 7.4 std units, May 02, 2016, Aug 5, 2017, Nov 6, 2017, and many other days; minimum, 3.2 std units, Sep 15-18, 1985.
DISSOLVED OXYGEN: Extremes not reported due to lack of data.