LOCATION.-- Lat 42°03'03", long 88°00'36" (NAD of 1983), in NE1/4NW1/4 sec.17, T.41 N., R.11 E., Cook County, Hydrologic Unit 07120004, on right bank at downstream side of bridge on State Highway 58, 2.8 mi southwest of Arlington Heights, and at mile 34.68.

DRAINAGE AREA.-- 32.5 mi².

PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE

DISCHARGE: August 1950 to September 1971, and October 1972 to September 1973 (discontinued, gage moved upstream 0.9 mi).

PARTIAL RECORD: Annual maximum, water years 1972; 1974 to 1976, discharge only.

REVISED RECORDS.-- WSP 1915: Drainage Area.

GAGE.-- Water-stage recorder. Datum of gage is 681.32 ft above NGVD of 1929 (Cook County Highway Department bench mark) (681.05 ft NAVD 1988).

EXTREMES FOR PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 1,060 ft³/s June 10, 1967, Aug. 26, 1972; maximum gage height, 10.80 ft Aug. 26, 1972, from floodmarks; no flow at times in some years.