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LOCATION.-- Lat 39°45'50", long 89°33'43" (NAD of 1927), in NW1/4SE1/4 sec.8, T.15 N., R.4 W., Sangamon County, Hydrologic Unit 07130007, at State Highway 29 bridge, 1.7 mi northwest of Rochester, 1.8 mi upstream from Black Branch, 2.2 mi downstream from Horse Creek, and at mile 5.0. |
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DRAINAGE AREA.-- 870 mi2. |
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PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE |
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STAGE: October 1996 to current. |
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SURFACE-WATER QUALITY |
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CHEMICAL: Water years 1978 to 1991. Additional chemical data for water years 1972-77 are published in Water-Resources Investigations 78-23 and 79-24 as site EO 01. |
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MISCELLANEOUS: Temperature, water year 1977. |
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REVISED RECORDS.-- WDR IL-79-2: Drainage area. |
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REMARKS.-- Water discharges were determined from South Fork Sangamon River near Rochester (station 05576000). |
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EXTREMES FOR PERIOD OF RECORD.-- |
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STAGE: Maximum gage height, 27.94 ft, May 10, 11, 1996; minimum, Oct. 11, 12, 1997. |
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Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |