LOCATION.-- Lat 41°44'01", long 88°20'00", (NAD 1927) in NW1/4SE1/4 sec.33, T.38 N., R.8 E., Kane County, 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. | |
PERIOD OF RECORD.-- | |
SURFACE-WATER DISCHARGE AND STAGE | |
DISCHARGE: October 2002 to current year. | |
STAGE: October 2002 to current year. | |
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, phone telemeter, and concrete dam. Datum of gage is 603.52 ft above NGVD of 1929. | |
REMARKS.-- Flow regulated by Algonquin Dam, 36 mi upstream from station; Stratton Lock and Dam (previously known as McHenry Dam), 52 mi upstream from station; and occasionally affected by wind action. | |
EXTREMES FOR PERIOD OF RECORD.-- | |
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 8,800 ft3/s, May 31, 2004; gage height, 13.92 ft; minimum discharge, 123 ft3/s, Aug. 26, 2003, Sept. 8, 2003. | |