USGS Water-Year Summary 2023
05483600 Middle Raccoon River at Panora, IA
LOCATION - Lat 41°41'14.7", long 94°22'15.8" referenced to North American Datum of 1983, in NW 1/4 NE 1/4 NW 1/4 sec.05, T.79 N., R.30 W., Guthrie County, IA, Hydrologic Unit 07100007, on right bank 10 ft upstream from bridge on Soldier Trail, at southwestern edge of Panora, 1.5 mi upstream from Andy's Branch, 1.6 mi downstream from Lake Panorama, 18.2 mi upstream from mouth, and 66.1 mi upstream from mouth of Raccoon River.
DRAINAGE AREA - 440 mi².
- WDR IA-74-1: 1973(P).
PERIOD OF RECORD - Discharge records from June 1958 to current year.
Water-stage recorder and concrete control. Datum of gage is 991.38 ft above NAVD of 1988. Prior to September 9, 2009, at site 25 ft downstream at same datum.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of June 10, 1953, reached a stage of 14.3 ft, from high-water mark, discharge about 14,000 ft³/s.
PERIOD OF RECORD - Water year 2010.
PERIOD OF DAILY RECORD -
NITRATE + NITRITE: May 2010 to November 2015, records fragmentary.
SPECIFIC CONDUCTANCE: Daily instantaneous values collected in conjunction with suspended-sediment samples, March 1979 to September 1985, records fragmentary.
WATER TEMPERATURE: Daily instantaneous values collected in conjunction with suspended-sediment samples, March 1979 to September 1985, records fragmentary. Daily mean, March 2012 to current year.
SUSPENDED-SEDIMENT CONCENTRATION AND DISCHARGE: March 1979 to September 1985.