05587000 DATA: Discharge Tables, 2003

Station list Available data
ILLINOIS RIVER BASIN


LOCATION.-- Lat 39°14'03", long 90°23'40" (NAD of 1927), in SE1/4SE1/4 sec.11, T.9 N., R.12 W., Greene County, Hydrologic Unit 07130012, on left bank at downstream side of bridge on State Highway 267, 1.4 mi downstream from Link Branch, 3.5 mi northwest of Kane, and at mile 16.1.

DRAINAGE AREA.-- 868 mi².

PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE
	DISCHARGE: March 1921 to November 1933, May to August 1940, October 1940 to current year.
	STAGE: Water years 1994 to current year.
SURFACE-WATER QUALITY
	CHEMICAL: Water years 1978-91.
	MISCELLANEOUS: Water year 2002.
	BIOLOGICAL: Benthic macroinvertebrates, Water year 1997.

REVISED RECORDS.-- WSP 1175: 1924. WSP 1308: 1922(M), 1928(M), 1931(M). WDR IL-75-1: Drainage area.

GAGE.-- Water-stage recorder, phone telemeter, and crest-stage gage. Datum of gage is 426.77 ft above NGVD of 1929. Prior to Oct. 1, 1928, at site 2.0 mi upstream at various datums. May 17, 1940 to May 17, 1943, water-stage recorder, and May 18, 1943 to July 19, 1970, nonrecording gage at site 800 ft downstream at present datum. July 20 to Sept. 18, 1970, nonrecording gage at present site and datum.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 40,100 ft³/s, April 12, 1994, gage height, 28.32 ft; maximum gage height, 28.50 ft, May 18, 1943; no flow Oct. 19-27, 1955.

REMARKS FOR CURRENT YEAR.-- Records good except those for estimated daily discharges, which are poor.

Discharge, cubic feet per second, WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	21	99	e31	156	e38	e100	141	325	283	131	59	1890
2	21	77	e29	165	e45	e95	129	581	264	118	41	2550
3	44	61	e28	132	e53	e100	118	386	248	103	43	1300
4	75	50	e27	105	e56	e110	115	847	193	90	35	476
5	49	49	e26	88	e58	e120	113	2600	156	84	159	202

6	38	51	e26	85	e50	134	115	1950	145	70	130	120
7	33	68	e26	80	e44	124	144	1060	162	61	73	89
8	28	66	e27	86	e39	116	172	3130	147	56	47	66
9	25	53	e28	88	e35	111	148	6770	123	50	36	54
10	23	47	e29	e73	e33	100	128	6370	298	139	31	35

11	23	43	e30	e64	e31	90	116	7420	394	127	28	32
12	22	41	32	e56	e30	89	105	5490	290	96	26	33
13	21	40	32	e50	e31	339	95	2050	3390	88	24	34
14	20	38	32	e47	e60	855	88	1220	3010	67	23	36
15	20	38	32	e43	e1200	523	83	1030	1300	53	22	33

16	20	38	33	e40	1300	346	87	856	713	47	21	31
17	18	38	32	e37	626	260	322	744	481	40	21	31
18	18	39	75	e34	432	211	240	683	351	69	20	29
19	18	38	1060	e31	724	298	162	645	309	770	18	31
20	18	36	787	e29	1480	1080	156	641	243	400	17	31

21	18	38	392	e28	1290	1260	156	761	199	170	17	32
22	18	36	200	e27	875	831	141	618	167	88	14	30
23	18	34	133	e26	581	523	121	492	158	55	14	28
24	18	34	e90	e25	373	349	127	432	130	43	17	28
25	36	34	e72	e24	218	267	586	467	162	38	14	29

26	76	33	e65	e23	e170	216	869	484	1150	33	13	28
27	103	33	e60	e22	e130	186	485	403	631	32	12	27
28	57	33	e54	e23	e110	176	445	356	344	76	11	26
29	103	33	e52	e25	---	183	621	362	220	222	11	28
30	187	33	e56	e27	---	175	433	327	159	270	13	28

31	143	---	e90	e30	---	152	---	323	---	108	96	---

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1921 - 2003, BY WATER YEAR (WY)
MEAN	231	311	455	519	756	893	1150	943	579	322	202	177
MAX	4037	3703	3538	3514	3358	3844	6645	6949	4060	3216	3233	3161
(WY)	1927	1947	1983	1950	1982	1978	1927	2002	1945	1981	1946	1926
MIN	2.40	4.54	1.77	0.76	3.59	3.82	23.0	2.89	13.6	11.8	6.86	2.38
(WY)	1923	1953	1956	1956	1954	1954	1931	1954	1988	1988	1964	1988

SUMMARY STATISTICS	FOR 2002 CALENDAR YEAR		FOR 2003 WATER YEAR		WATER YEARS 1921 - 2003
ANNUAL TOTAL	429370		112460
ANNUAL MEAN	1176		308		543
HIGHEST ANNUAL MEAN					1883	1927
LOWEST ANNUAL MEAN					17.0	1954
HIGHEST DAILY MEAN	26600	May 8	7420	May 11	32700	May 19 1943
LOWEST DAILY MEAN	18	several days	11	Aug 28, 29	0.00	A
ANNUAL SEVEN-DAY MINIMUM	18	Oct 17	13	Aug 24	0.00	Oct 19 1955
MAXIMUM PEAK FLOW			7580	May 11	40100 B	Apr 12 1994
MAXIMUM PEAK STAGE			21.25	May 11	28.50	May 18 1943
INSTANTANEOUS LOW FLOW			10	Aug 29
ANNUAL RUNOFF (CFSM)	1.36		0.35		0.63
ANNUAL RUNOFF (INCHES)	18.40		4.82		8.50
10 PERCENT EXCEEDS	3200		717		1150
50 PERCENT EXCEEDS	140		80		99
90 PERCENT EXCEEDS	27		23		8.0

	A - Oct. 19-27, 1955.
	B - Gage height, 28.32 ft.