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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.
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USGS Water-Year Summary 2024
05551540 FOX RIVER AT MONTGOMERY, IL
LOCATION - Lat 41°44'00.78", long 88°20'00.01" referenced to North American Datum of 1983, in NW 1/4 NW 1/4 SE 1/4 sec.33, T.38 N., R.8 E., Kane County, IL, Hydrologic Unit 07120007, on left bank at dam 0.4 mi upstream from Mill Street bridge in Montgomery, 3.2 mi upstream from Waubansee Creek, and at mile 45.9.
DRAINAGE AREA - 1,732 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD -
SURFACE-WATER DISCHARGE AND STAGE
DISCHARGE: October 2002 to current.
STAGE: October 2002 to current.
MISCELLANEOUS MEASUREMENTS: Water year 1976.
SURFACE-WATER QUALITY
CHEMICAL: Water years 1978 to 1990.
Additional chemical data for water years 1964, 1972-77 are published in
Water-Resources Investigations 78-23 and 79-24 as site DT 38.
SURFACE-WATER DISCHARGE AND STAGE
DISCHARGE: October 2002 to current.
STAGE: October 2002 to current.
MISCELLANEOUS MEASUREMENTS: Water year 1976.
SURFACE-WATER QUALITY
CHEMICAL: Water years 1978 to 1990.
Additional chemical data for water years 1964, 1972-77 are published in
Water-Resources Investigations 78-23 and 79-24 as site DT 38.
GAGE - Water-stage recorder, satellite telemeter, crest-stage gage, and concrete dam. Datum of gage is 603.20 ft. above NAVD of 1988.
REMARKS - Flow regulated by Stratton Lock & Dam in McHenry, 51.8 miles upstream, and at times by flood gate at dam in Algonquin, 35.7 miles upstream. Some cities upstream use Fox River for drinking water supply.
Accuracy of records is discussed in the annual Station Analysis archived at the USGS IL Water Science Center.
EXTREMES FOR PERIOD OF RECORD - SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 18,000 ft³/s, September 14, 2008; gage height, 15.12 ft; maximum gage height, 15.14 ft, April 18, 2013, discharge, 17,100 ft³/s; minimum, 81 ft³/s, July 19, 2005.
