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LOCATION.-- Lat 40°07'27", long 89°59'06" (NAD of 1983), in NW1/4SE1/4 sec.3, T.19 N., R.8 W., Mason County, Hydrologic Unit 07130008, on right bank at downstream side of bridge on State Highway 97, 300 ft upstream from a railroad bridge, 0.8 mi downstream from Crane Creek, 1.8 mi northwest of Oakford, and at mile 25.7. |
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DRAINAGE AREA.-- 5,093 mi2. |
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PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE |
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DISCHARGE: October 1909 to March 1912, August 1914 to June 1919, March 1921 to September 1922, October 1928 to December 1933, October 1939 to current year. Monthly discharge only for some periods, published in WSP 1308. |
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STAGE: Water years 1994 to current year. |
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PARTIAL RECORD: Annual maximum, water years 1926 to 1928; 1934 to 1939. |
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SURFACE-WATER QUALITY |
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CHEMICAL: Water years 1978-94 and 1997-98. |
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SEDIMENT: Water years 1981, June 1983 to September 1986, water years 1995-1997. |
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SPECIFIC CONDUCTANCE: Water years 1979-81. |
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WATER TEMPERATURE: Water years 1976-77, 1979-81. |
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MISCELLANEOUS: Contaminants in streambed sediments, August 1996; contaminants in fish tissue, August 1996; streambank sediment size, October 1997; streambed sediment size, October 1997; sediment concentration and particle size, water years 1993-94, 1996-98. |
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BIOLOGICAL |
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ALGAE: Water year 1981, 1996-97. |
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BENTHIC MACROINVERTEBRATES: Water year 1996. |
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FISH: Water year 1997. |
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HABITAT: Water year 1996, 2003. |
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REVISED RECORDS.-- WSP 715: 1922(M). WSP 1175: 1912(M). WDR IL-75-1: Drainage area. |
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GAGE.-- Water-stage recorder, U.S. Army Corps of Engineers satellite telemeter, and artificial control. Datum of gage is 452.88 ft above NGVD of 1929 (U.S. Army Corps of Engineers bench mark) (452.55 ft NAVD 1988). Prior to Oct. 1, 1939, nonrecording gage at site 2.4 mi upstream at datum 458.66 ft above NGVD of 1929 (458.33 ft NAVD 1988). Oct. 1, 1939, to May 14, 1940, nonrecording gage at present site at zero datum of NGVD of 1929 (-0.33 ft NAVD 1988). |
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EXTREMES FOR PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 123,000 ft3/s, May 20, 1943, gage height, 25.63 ft; minimum daily, 45 ft3/s, estimated, Jan. 21-31, 1918. |
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SUSPENDED-SEDIMENT CONCENTRATIONS: Maximum daily, 3,540 mg/L, June 9, 1984; minimum daily, 1 mg/L, Dec. 7, 8, 1996, Jan. 11, 1997. |
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SUSPENDED-SEDIMENT LOADS: Maximum daily, 120,000 tons, Feb. 24, 1985; minimum daily, 1.6 tons, Dec. 7, 1996. |
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Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |