LOCATION.-- Lat 41°39'39", long 87°47'38" (NAD of 1927), in SW1/4SW1/4 sec. 30, T. 37 N., R. 13 E., Cook County, Hydrologic Unit 07120003, at bridge on 127th Street at south edge of Palos Heights, 2.5 mi east of Palos Park. | |
DRAINAGE AREA.-- 1.69 mi2. | |
PERIOD OF RECORD.-- | |
SURFACE-WATER DISCHARGE AND STAGE | |
PARTIAL RECORD: Annual maximum, water years 1961 to 1979. | |
GAGE.-- Crest-stage gage. Datum is 613.72 ft above NGVD of 1929. | |
EXTREMES FOR PERIOD OF RECORD.-- | |
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 434 ft3/sec, July 21, 1976, gage height, 4.35 ft. | |