USGS Water-Year Summary 2019
05540275 SPRING BROOK AT 87TH STREET NEAR NAPERVILLE, IL
LOCATION - Lat 41°43'33", long 88°09'49" referenced to North American Datum of 1983, in SW 1/4 SW 1/4 sec.36, T.38 N., R.9 E., Du Page County, IL, Hydrologic Unit 07120004, on right bank at upstream side of bridge on 87th Street, 3.0 mi south of Naperville, and at mile 2.9.
DRAINAGE AREA - 9.90 mi².
PERIOD OF RECORD -
SURFACE-WATER DISCHARGE AND STAGE
DISCHARGE: October 1987 to current.
STAGE: Water years 1994 to current.
CHEMICAL: Water years 1988 to 2011.
GAGE - Water-stage recorder, satellite telemeter and crest-stage gage. Datum of gage is 647.00 ft above NGVD of 1929 (646.73 ft NAVD 1988).
EXTREMES FOR PERIOD OF RECORD - SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 1,750 ft³/s, July 18, 1996, gage height, 10.77 ft; minimum daily, no flow, at times in several years.