05555300 DATA: Discharge Tables, 2000

Station list Available data
ILLINOIS RIVER BASIN

05555300 VERMILION RIVER NEAR LEONORE, IL

LOCATION.-- Lat 41°12'30", long 88°55'51", in SW1/4SW1/4 sec.30, T.32 N., R.3 E., La Salle County, Hydrologic Unit 07130002, on left downstream side of bridge on County Highway 57 (Red, White and Blue Bridge Road), 3 mi northeast of Leonore, 6.2 mi downstream from Otter Creek, 8 mi northwest of Streator, and at mile 17.2.

DRAINAGE AREA.-- 1,251 mi².

PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE

DISCHARGE: May 1931 to current year. Prior to October 1971, published as "at Lowell."

STAGE: Water years 1994-2000.

SURFACE-WATER QUALITY

CHEMICAL: Water years 1978 to 1991.

SEDIMENT: June 1980 to September 1981.

MISCELLANEOUS: Contaminants in streambed sediments, July 1996; contaminants in fish tissue, July 1996.

REVISED RECORDS.-- WSP 745: 1931-32. WSP 1308: 1932(M), 1935-38(M), 1940(M), 1942(M). WDR IL-75-1: Drainage area.

GAGE.-- Water-stage recorder, U.S. Army Corps of Engineers satellite telemeter and rain gage, and crest-stage gage. Datum of gage is 520.58 ft above sea level. Prior to Aug. 20, 1952, nonrecording gage at site 6.8 mi downstream at datum 19.97 ft lower. Aug. 20, 1952 to Sept. 30, 1971, nonrecording gage at site 6.7 mi downstream at datum 19.97 ft lower.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 33,500 ft³/s, July 15, 1958, gage height, 15.30 ft, from graph based on gage readings, site and datum then in use; maximum gage height, 27.13 ft, Dec. 4, 1982, present site; minimum discharge, 2.6 ft³/s, Aug. 3, 1988.
SUSPENDED-SEDIMENT CONCENTRATIONS: Maximum daily mean, 6,730 mg/L Aug. 15, 1981; minimum daily mean, 1 mg/L Feb. 5, 1981.
SUSPENDED-SEDIMENT LOADS: Maximum daily, 209,000 tons Aug. 15, 1981; minimum daily, 0.24 ton Feb. 5, 1981.

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

DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1999 TO SEPTEMBER 2000 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	13	14	12	20	e12	74	49	281	2130	602	102	14
2	12	14	11	23	e12	61	46	277	1460	503	97	14
3	15	14	15	24	e13	49	47	322	984	476	96	13
4	28	14	39	27	e13	40	45	408	720	786	81	13
5	16	14	76	25	e13	37	40	367	586	2980	73	12

6	12	13	46	21	e14	31	39	322	500	3560	80	12
7	11	13	21	18	e14	26	36	284	429	2750	83	13
8	10	12	17	17	e14	22	55	269	375	1670	54	13
9	11	15	16	20	e15	23	56	377	334	1100	78	13
10	11	15	16	24	e16	21	51	361	306	2760	61	13

11	9.9	14	16	25	e17	17	60	379	284	2480	52	15
12	9.8	15	15	26	19	17	78	400	274	2300	41	47
13	9.9	16	15	27	19	15	80	376	2020	1510	36	28
14	8.2	15	21	26	19	15	70	331	1420	1000	32	22
15	9.1	14	27	24	19	16	61	283	1370	706	29	24

16	10	14	28	24	22	23	57	245	1870	530	26	17
17	12	14	24	20	29	30	72	227	1370	412	24	15
18	12	14	23	22	38	27	55	247	870	339	23	15
19	12	14	19	20	49	32	72	662	613	298	20	15
20	11	13	22	e18	55	55	204	1020	554	263	18	16

21	12	13	24	e16	67	71	365	828	1370	235	17	22
22	13	14	18	e15	86	93	1310	599	3500	204	18	19
23	12	16	16	e13	125	116	921	472	2640	174	19	23
24	11	16	e16	e12	198	116	677	405	2690	152	18	30
25	11	15	e15	e11	224	96	651	344	4690	134	17	25

26	11	14	e15	e10	210	78	691	298	2700	118	16	20
27	12	15	e14	e10	168	73	527	337	1730	108	16	18
28	13	14	e14	e10	123	71	414	676	1190	101	16	17
29	13	13	e16	e11	90	62	350	1020	907	90	17	16
30	13	13	17	e11	---	60	304	787	730	140	15	16

31	13	---	18	e12	---	56	---	851	---	137	13	---

TOTAL	376.9	424	662	582	1713	1523	7483	14055	40616	28618	1288	550
MEAN	12.2	14.1	21.4	18.8	59.1	49.1	249	453	1354	923	41.5	18.3
MAX	28	16	76	27	224	116	1310	1020	4690	3560	102	47
MIN	8.2	12	11	10	12	15	36	227	274	90	13	12
CFSM	.01	.01	.02	.02	.05	.04	.20	.36	1.08	.74	.03	.01
IN.	.01	.01	.02	.02	.05	.05	.22	.42	1.21	.85	.04	.02

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1972 - 2000, BY WATER YEAR (WY)
MEAN	441	743	1023	928	1249	2078	1889	1619	1358	722	343	417
MAX	3188	4978	6201	4259	3681	7649	5098	5152	4442	2966	2678	3997
(WY)	1987	1986	1983	1993	1997	1979	1982	1995	1980	1993	1981	1993
MIN	11.4	11.4	11.4	6.36	40.9	49.1	208	241	78.5	8.83	6.89	11.8
(WY)	1972	1972	1977	1977	1977	2000	1977	1992	1988	1988	1988	1999

SUMMARY STATISTICS	FOR 1999 CALENDAR YEAR		FOR 2000 WATER YEAR		WATER YEARS 1972 - 2000
ANNUAL TOTAL	287155.5		97890.9
ANNUAL MEAN	787		267		1066
HIGHEST ANNUAL MEAN					2419	1993
LOWEST ANNUAL MEAN					267	2000
HIGHEST DAILY MEAN	10400	Jun 14	4690	Jun 25	30000	Dec 4 1982
LOWEST DAILY MEAN	7.6	Sep 24	8.2	Oct 14	2.6	Aug 3 1988
ANNUAL SEVEN-DAY MINIMUM	8.7	Sep 21	9.7	Oct 10	3.0	Jul 30 1988
INSTANTANEOUS PEAK FLOW			5780	Jun 25	31800	Dec 4 1982
INSTANTANEOUS PEAK STAGE			12.00	Jun 25	27.13	Dec 4 1982
INSTANTANEOUS LOW FLOW			7.1	Oct 14	2.6	Aug 3 1988
ANNUAL RUNOFF (CFSM)	.63		.21		.85
ANNUAL RUNOFF (INCHES)	8.54		2.91		11.58
10 PERCENT EXCEEDS	2230		747		2660
50 PERCENT EXCEEDS	70		26		397
90 PERCENT EXCEEDS	11		12		25