USGS Water-Year Summary 2019
15294345 YENTNA R NR SUSITNA STATION AK
LOCATION - Lat 61°41'55", long 150°39'02" referenced to North American Datum of 1927, Matanuska-Susitna Borough, AK, Hydrologic Unit 19020504, (Tyonek C-2 quad), on right bank, 14 mi upstream from gage on Susitna R. at Susitna Station and 12 mi upstream from confluence with Susitna R.
DRAINAGE AREA - 6,180 mi².
PERIOD OF RECORD - October 1980 to June 1986, May 2013 to September 2014 (discontinued).
GAGE - Water-stage recorder. Elevation of gage is 80 ft. above sea level, from topographic map.
PERIOD OF RECORD - Water years 1981 to June 1986, and May 2013 to September 2014 (discontinued).
PERIOD OF DAILY RECORD - WATER TEMPERATURE: May 1981 to June 1986 (seasonal), and May 2013 to September 2014.
TURBIDITY: May 2013 to September 2014 (seasonal).
INSTRUMENTATION - Digital water temperature recorder May 1981 to October 1984. Electronic water temperature recorder May 1985 to June 1986, set for one-hour recording intervals. Multi probe water quality monitor connected to electronic recorder May 2013 to September 2014, set for 15-minute recording intervals.
EXTREMES OUTSIDE PERIOD OF RECORD - WATER TEMPERATURE -- Minimum, 0.0°C many days during winter periods.
EXTREMES FOR PERIOD OF DAILY RECORD - WATER TEMPERATURE: Maximum, 17.0°C, July 20, 1982.
TURBIDITY: Maximum recorded, 1,220 FNU, September 15, 2014; minimum, 22 FNU, October 9, 2013.