Station list
05535500 WEST FORK OF NORTH BRANCH CHICAGO RIVER AT NORTHBROOK, IL
LOCATION.--Lat 42�08'18", long 87�50'04", in SW¼SE¼ sec.4, T.42 N., R.12 E., Cook County, Hydrologic Unit 07120003, on
left bank at upstream side of bridge on State Highway 68 at Northbrook, and at mile 7.9.
DRAINAGE AREA.--11.5 mi2.
PERIOD OF RECORD.--August 1952 to current year.
GAGE.--Water-stage recorder. Datum of gage is 637.98 ft above sea level (Cook County Highway Department bench mark).
REMARKS.--Records good except those for estimated daily discharges, which are poor. Effluent from sewage-treatment plant,
1.7 mi upstream, averaged about 5.4 ft3/s per day, with a maximum of 7.4 ft3/s in February and a minimum of 3.8 ft3/s in October.
Gage-height telemeter at station.