USGS Water-Year Summary 2019
01518700 TIOGA RIVER AT TIOGA JUNCTION, PA
LOCATION - Lat 41°57'09", long 77°06'56" referenced to North American Datum of 1927, Tioga County, PA, Hydrologic Unit 02050104, on left bank 0.3 mi upstream from bridge on Township Route 722 at Tioga Junction, 3.3 mi downstream from Crooked Creek, and 5.0 mi downstream from Tioga and Hammond Dams.
DRAINAGE AREA - 446 mi².
PERIOD OF RECORD - July 1976 to current year.
GAGE - Water-stage recorder and water-quality monitor. Datum of gage is 990.43 ft above National Geodetic Vertical Datum of 1929. Satellite and landline telemetry at station.
COOPERATION - Station established and maintained by the U.S. Geological Survey in cooperation with the U.S. Army Corps of Engineers, Baltimore District.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of September 1975 reached a stage of about 22.1 ft, from floodmarks, discharge, about 48,000 ft³/s.
PERIOD OF RECORD - Water years 1969 to 1972, 1973 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, 29.5°C, July 21, 1980; minimum, -0.1°C, on Jan 29, 30, 31, 2019.
SPECIFIC CONDUCTANCE: Maximum, 460 microsiemens/cm, Aug. 26, 1979; minimum, 67 microsiemens/cm, Mar. 8, 1979.
pH: Maximum, 8.8 std units, Nov 15, 2016; minimum, 5.1 std units, Sept. 8, 1977, Aug. 26, Sept. 15, 23, 1979.
DISSOLVED OXYGEN: Extremes not reported due to lack of data.