LOCATION.-- Lat 41°58'42", long 88°07'59" (NAD of 1927), in NW1/4SE1/4 sec. 6, T. 40 N., R. 10 E., Du Page County, Hydrologic Unit 07120004, on upstream and downstream side of culvert on U.S. Highway 20, 1.2 mi southeast of Ontarioville. | |
DRAINAGE AREA.-- 10.1 mi2. | |
PERIOD OF RECORD.-- | |
SURFACE-WATER DISCHARGE AND STAGE | |
PARTIAL RECORD: Annual maximum, water years 1961 to 1979. | |
GAGE.-- Crest-stage gage. Datum is 770.78 ft above NGVD of 1929. | |
EXTREMES FOR PERIOD OF RECORD.-- | |
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 630 ft3/sec, August 26, 1972, gage height, 4.66 ft. | |