Warning: Javascript must be enabled to use all the features on this page!


Page Loading - Please Wait...

Click to hideNews Bulletins

Water-Year Summary for Site 01518700

Click to hide Water-Year Summary instructions and information
  • 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)  
00060 Discharge(Mean)  
00095 Specific cond at 25C(Max.,Min.,Mean)  
00400 pH(Max.,Min.,Med.)  

Water year 2019: 2019-10-01 to 2020-09-30
 

Print this page
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.
SURFACE-WATER RECORDS
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.
REMARKS - Flow regulated since November 1979 by Tioga Dam (station 01517900) and Hammond Dam (station 01518498). Records for water year 2014 are good except those for estimated daily discharges, which are fair. Records for water year 2015 are good except those for estimated daily discharges, which are fair. Records for water year 2016 are good except those for estimated daily discharges, which are fair. Records for water year 2017 are good except those for estimated discharges, which are poor. Records for water year 2018 are good except those for estimated discharges, which are poor.
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.
WATER-QUALITY RECORDS
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.
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. 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. Cross-sectional water quality data is available upon request. 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. Subsequent to water year 2015, water temperatures below 0 degrees Celsius are reported. Records for water year 2016 are rated as follows: Water temperature is excellent; Specific conductance and pH are good. Records for water year 2017 are rated as follows: Water temperature and PH records are excellent. Specific conductance records are good. Records for water year 2018 are rated as follows: Water temperature records are excellent. Specific conductance and PH records are good. Records for water year 2019 are rated as follows: Water temperature records are excellent. Specific conductance records are good, and PH records are fair.
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.