LOCATION.-- Lat 42°01'34", long 88°15'20" (NAD of 1927), in SE1/4NW1/4 sec.19, T.41 N., R.9 E., Cook County, Hydrologic Unit 07120006, on right bank 35 ft upstream from bridge on U.S. Highway B.R. 20 (Villa Street) in Elgin, and at mile 2.3. | |
DRAINAGE AREA.-- 35.2 mi2. | |
PERIOD OF RECORD.-- | |
SURFACE-WATER DISCHARGE AND STAGE | |
DISCHARGE: August 1951 to current year. | |
STAGE: Water years 1994 to current year. | |
SURFACE-WATER QUALITY | |
CHEMICAL: Water years 1977-91. | |
MISCELLANEOUS: Water year 2000; contaminants in streambed sediments, water year 2000. | |
BIOLOGICAL | |
ALGAE: Pigment and biomass, Water year 2000. | |
BENTHIC MACROINVERTEBRATES: Water year 2000. | |
FISH: Water year 2001. | |
HABITAT: Water year 2000. | |
REVISED RECORDS.-- WSP 1338: 1952-53. WDR IL-75-1: Drainage area. | |
GAGE.-- Water-stage recorder and phone telemeter. Datum of gage is 716.00 ft above NGVD of 1929. | |
EXTREMES FOR PERIOD OF RECORD.-- | |
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 1,180 ft3/s, Feb. 21, 1997, gage height, 6.78 ft; no flow, July 10, 1957, Sept. 14, 1958, July 18, 1989, Oct. 6, 1997. | |