05594450 DATA: Discharge Tables, 2002

Station list Available data
KASKASKIA RIVER BASIN


LOCATION.-- Lat 38°43'00", long 89°49'45" (NAD of 1927), in SE1/4SW1/4 sec.12, T.3 N., R.7 W., Madison County, Hydrologic Unit 07140204, on right bank at upstream side of bridge on U.S. Highway 40, 0.2 mi upstream from railroad bridge, 1.9 mi upstream from East Fork Silver Creek, 1.9 mi southeast of Troy, and at mile 44.6.

DRAINAGE AREA.-- 154 mi².

PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE
	DISCHARGE: October 1966 to current year.
	STAGE: Water years 1994-2002.
SURFACE-WATER QUALITY
	CHEMICAL: Water years 1978-91.

REVISED RECORDS.-- WDR IL-75-1: Drainage area.

GAGE.-- Water-stage recorder, phone telemeter, and crest-stage gage. Datum of gage is 438.91 ft above NGVD of 1929.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 10,600 ft³/s, April 12, 1979, gage height, 17.52 ft; maximum gage height, 17.94 ft, May 17, 1990, discharge, 9,170 ft³/s; no flow for several days in 1967-68, 1973, 1988.

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

DISCHARGE, in CFS, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	3.0	11	432	e15	1180	e29	104	178	28	7.3	6.4	e4.5
2	2.9	11	174	e13	1630	e60	78	261	25	7.0	6.1	e4.0
3	3.1	10	71	e12	880	e270	64	345	22	6.6	5.9	e3.8
4	3.5	9.2	46	e11	267	e150	54	129	19	6.4	5.9	e3.6
5	5.2	9.6	35	e11	104	e68	48	70	17	6.3	5.7	e3.6

6	2.7	9.8	29	e11	74	e62	44	210	17	6.1	6.7	e3.5
7	2.3	9.5	25	e12	64	e55	42	1260	20	5.9	5.4	e3.5
8	2.4	9.5	23	e14	56	61	101	5420	20	6.1	5.4	e3.4
9	2.6	9.4	20	e16	47	445	297	4030	16	6.1	5.9	e3.4
10	31	8.9	18	e18	43	595	163	2280	15	6.7	6.0	e3.4

11	81	9.2	16	19	40	594	83	1470	150	6.9	63	e3.3
12	281	9.0	25	19	37	222	113	711	425	16	258	e3.3
13	201	8.6	112	19	34	108	319	2920	149	14	35	e3.2
14	308	8.5	332	19	30	78	172	4860	73	8.6	15	e3.1
15	138	8.7	427	18	29	109	90	2100	42	6.2	10	e3.1

16	200	8.5	487	17	28	321	72	890	29	6.0	8.0	e3.0
17	119	8.2	1220	17	26	201	52	425	22	5.5	6.9	16
18	60	8.0	2070	15	24	99	42	613	18	33	11	154
19	29	8.4	1510	16	34	102	41	592	15	19	102	101
20	19	8.1	595	16	91	181	474	265	13	6.2	274	66

21	13	7.7	178	17	118	183	907	122	11	5.5	61	46
22	11	7.5	99	19	68	95	1200	88	9.6	5.6	21	23
23	11	7.4	72	27	46	61	622	74	9.0	6.3	12	11
24	22	43	52	31	38	51	176	60	9.2	5.8	8.6	7.5
25	77	64	41	26	34	320	109	52	14	5.7	23	6.4

26	96	47	32	23	e30	551	148	46	9.0	8.7	20	e5.0
27	51	34	e27	21	e28	709	354	41	8.4	11	10	e4.5
28	26	24	e23	20	e27	542	713	39	9.5	8.9	7.6	e4.0
29	18	51	e20	19	---	403	811	42	15	6.8	6.5	e3.5
30	14	346	e18	64	---	312	632	38	8.7	7.6	e5.6	e3.2

31	11	---	e16	583	---	169	---	32	---	6.7	e5.0	---

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1967 - 2002, BY WATER YEAR (WY)
MEAN	27.85	87.80	163.3	140.1	210.3	223.4	238.1	164.7	108.1	72.42	32.05	25.27
MAX	165	509	902	562	646	927	738	957	501	570	296	408
(WY)	1987	1985	1983	1974	1982	1978	1994	2002	1998	1969	1998	1993
MIN	0.23	0.34	0.42	0.31	9.25	6.74	13.4	5.26	0.91	1.44	0.75	0.093
(WY)	1972	1972	1977	1977	1978	1981	2000	1977	1988	1984	1971	1988

SUMMARY STATISTICS	FOR 2001 CALENDAR YEAR		FOR 2002 WATER YEAR		WATER YEARS 1967 - 2002
ANNUAL TOTAL	33785.0		65195.7
ANNUAL MEAN	92.56		178.6		123.9
HIGHEST ANNUAL MEAN					244	1983
LOWEST ANNUAL MEAN					23.1	1980
HIGHEST DAILY MEAN	2070	Dec 18	5420	May 8	7740	Apr 12 1979
LOWEST DAILY MEAN	1.5	Aug 20	2.3	Oct 7	0.00	A
ANNUAL SEVEN-DAY MINIMUM	1.8	Aug 14	3.1	Oct 3	0.00	Sep 29 1968
MAXIMUM PEAK FLOW			6980	May 13	10600 B	Apr 12 1979
MAXIMUM PEAK STAGE			17.43	May 13	17.94 C	May 17 1990
INSTANTANEOUS LOW FLOW			1.9	Oct 6, 7
ANNUAL RUNOFF (CFSM)	0.60		1.16		0.80
ANNUAL RUNOFF (INCHES)	8.16		15.75		10.93
10 PERCENT EXCEEDS	280		426		300
50 PERCENT EXCEEDS	21		26		16
90 PERCENT EXCEEDS	2.4		5.6		0.81