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LOCATION.-- Lat 41°50'51", long 87°56'12" (NAD of 1983), in SE1/4SW1/4 sec.24, T.39 N., R.11 E., Du Page County, Hydrologic Unit 07120004, on right bank at upstream side of bridge on 22nd Street in Oak Brook and at mile 14.9. |
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DRAINAGE AREA.-- 103 mi2. |
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PERIOD OF RECORD.-- |
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STAGE: June 1994 to current year. |
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PRECIPITATION: October 1995 to current year. |
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GAGE.-- Water-stage recorder and an unheated tipping-bucket rain gage. Datum of gage is 600.00 ft above NGVD of 1929 (599.71 ft NAVD 1988). |
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REMARKS.-- Collection, computation and publication of precipitation data do not necessarily conform to standards used by the National Weather Service. Precipitation data could be subject to error for days with freezing and/or thawing of precipitation. |
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EXTREMES FOR PERIOD OF RECORD.-- |
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STAGE: Maximum gage height, 55.03 ft, Feb. 21, 1997; minimum, 46.76 ft, Sept. 27, 28, 1995. |
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PRECIPITATION: Maximum daily total, 3.38 in., September 11, 2000, but may have been greater during periods of missing record. |
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Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |