Station list
05536275 THORN CREEK AT THORNTON, IL
LOCATION.--Lat 41�34'05", long 87�36'30", in SE¼NW¼ sec.34, T.36 N., R.14 E., Cook County, Hydrologic Unit 07120003,
on right bank at downstream side of bridge on Margaret Street in Thornton, 1.0 mi downstream from North Creek, and at mile 4.2.
DRAINAGE AREA.--104 mi2.
PERIOD OF RECORD.--May 1948 to current year. Prior to October 1974, records published with those for streams in the
St. Lawrence River basin (WSP 1307, 1727, 1911, 2111, WDR IL 1971-74).
REVISED RECORDS.--WSP 1707: Drainage area.
GAGE.--Water-stage recorder. Datum of gage is 586.43 ft above sea level. Prior to Dec. 18, 1948, nonrecording gage at same site
and datum.
REMARKS.--Records good. Effluent from sewage-treatment plant upstream averaged 24.9 ft3/s, and consists of publicly supplied
water from Lake Michigan and ground water sources. Maximum monthly effluent was 42.0 ft3/s in March, and minimum was
17.2 ft3/s in October. Gage-height telemeter at station.
EXTREMES OUTSIDE PERIOD OF RECORD.--Flood of Apr. 5, 1947, reached a stage of 14.34 ft (from floodmark), discharge,
4,200 ft3/s.