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LOCATION.-- Lat 39°52'44", long 88°22'35" (NAD of 1927), NW1/4NE1/4, sec. 2, T.16 N., R.7 E., Douglas County, Hydrologic Unit 07140201, on left bank at downstream side of bridge, 0.1 mi downstream from Twomile Slogh, 6.0 mi southwest of Pestotum, and at mile 271.4. |
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DRAINAGE AREA.-- 109 mi2. |
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PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE |
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DISCHARGE: October 1964 to September 1979. |
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SURFACE-WATER QUALITY |
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CHEMICAL: Water years 1978-79. |
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REVISED RECORDS.-- WDR IL-75: Drainage area. |
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GAGE.-- Water-stage recorder. Datum of gage is 648.40 ft above NGVD of 1929 (648.19 ft NAVD 1988). Oct. 1, 1964 to Nov. 16, 1965, nonrecording gage at same site and datum. |
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REMARKS.-- Discharge adjusted for pumpage. Water is pumped into river from wells 15 mi upstream. |
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EXTREMES FOR PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 3,310 ft3/s June 23, 1974, gage height, 15.92 ft; minimum, 2.9 ft3/s Sept. 9, 1966. |
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Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |