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LOCATION.-- Lat 40°15'17", long 89°07'45" (NAD of 1927), on line between secs.19 and 20, T.21 N., R.1 E., De Witt County, Hydrologic Unit 07130009, on left upstream side of bridge on Waynesville Road, 0.5 mi downstream from Rock Creek, 0.7 mi north of Waynesville, and at mile 25.3. |
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DRAINAGE AREA.-- 227 mi2. |
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PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE |
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DISCHARGE: January 1948 to current year. |
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STAGE: Water years 1994 to current year. |
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SURFACE-WATER QUALITY |
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CHEMICAL: Water years 1978-91. |
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BIOLOGICAL |
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BENTHIC MACROINVERTEBRATES: Water year 1997. |
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REVISED RECORDS.-- WSP 1175: 1948-49. |
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GAGE.-- Water-stage recorder, phone telemeter, and crest-stage gage. Datum of gage is 620.24 ft above NGVD of 1929 (U.S. Army Corps of Engineers bench mark). Prior to Sept. 8, 1970, nonrecording gage at same site and datum. |
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REMARKS.-- Diurnal fluctuation of low flows caused by City of Heyworth pumping station 10 mi. upstream at highway 136. |
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EXTREMES FOR PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 24,600 ft3/s, Aug. 15, 1981, gage height, 16.91 ft; no flow Sept. 15, 28, 29, 1988. |
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Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |