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- 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.
USGS Water-Year Summary 2024
05424057 ROCK RIVER AT HORICON, WI
LOCATION - Lat 43°27'01", long 88°37'56" referenced to North American Datum of 1983, in NW 1/4 SE 1/4 sec.6, T.11 N., R.16 E., Dodge County, WI, Hydrologic Unit 07090001, on left bank downstream side of State Highway 33, 1,700 ft upstream of dam, at Horicon.
DRAINAGE AREA - 456 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - November 1997 to December 2000, November 2001 to current year.
GAGE - Water-stage recorder. Side-looking velocity meter system. Datum of gage is 849.48 ft above NAVD of 1988 (October 06, 2021 by GPS).
REMARKS - Records are good except estimated days and flows below 5 cfs, which are poor. For records status prior to October 1, 2013, see remarks printed in annual water-data reports. Gage-height telemeter at station.
WATER-QUALITY RECORDS
PERIOD OF RECORD - December 1997 to December 2000, November 2001 to November 2002, October 2009 to September 2011 (discontinued).
PERIOD OF DAILY RECORD - SUSPENDED SEDIMENT DISCHARGE: December 1997 to December 2000, November 2001 to November 2002, October 2009 to September 2011 (discontinued).
TOTAL PHOSPHORUS DISCHARGE: December 1997 to December 2000, November 2001 to November 2002, October 2009 to September 2011 (discontinued).
DISSOLVED PHOSPHORUS DISCHARGE: October 2009 to September 2011 (discontinued).
INSTRUMENTATION - Stage-activated water-quality sampler from December 1997 to December 2000, November 2001 to November 2002, October 2009 to September 2011(discontinued).
REMARKS - Chemical analyses are done by the Wisconsin State Laboratory of Hygiene. Samples are point samples unless otherwise indicated.
