05594450 DATA: Discharge Tables, 2003

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 to current year.
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 fair 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	e3.0	7.1	3.2	36	e5.0	e20	22	57	18	34	6.4	83
2	e3.1	4.3	3.0	25	e5.7	e34	18	44	16	29	4.6	449
3	14	3.9	2.9	21	e6.6	e50	16	36	29	25	25	406
4	7.1	3.7	2.6	17	7.8	e55	14	130	29	19	356	125
5	5.7	5.9	e2.5	15	6.8	61	13	472	24	17	174	38

6	e5.0	8.0	e2.4	17	6.7	48	13	448	20	14	38	19
7	e4.5	4.9	e2.3	19	e6.2	35	22	275	22	11	17	11
8	e4.2	5.6	e2.3	21	e5.5	29	19	315	19	8.9	9.2	7.2
9	e4.0	6.2	e2.3	18	e5.2	25	19	367	16	12	5.5	5.7
10	e3.7	5.4	e2.4	15	e4.6	20	16	571	156	19	3.7	3.7

11	e3.5	4.9	e2.5	e10	e4.4	18	14	799	708	10	3.2	3.0
12	e3.4	4.0	2.6	e8.0	e4.2	68	11	764	1420	15	2.9	2.7
13	e3.3	3.7	2.8	e6.6	e4.2	131	9.5	514	1730	12	2.7	2.7
14	e3.2	3.5	3.1	e5.6	e9.0	168	8.5	163	1960	8.2	2.7	2.6
15	e3.1	4.7	3.1	e5.0	40	112	7.8	75	1430	5.2	2.6	2.6

16	e3.0	4.4	3.0	e4.4	172	64	8.0	52	551	3.9	2.4	2.5
17	e2.9	4.3	2.8	e4.0	162	47	19	43	160	3.4	2.4	2.8
18	e4.0	4.0	13	e3.7	69	38	16	37	80	173	2.5	2.6
19	14	4.0	31	e3.5	111	99	22	35	65	441	2.4	2.6
20	6.4	4.0	23	e3.8	370	165	90	32	53	347	2.2	2.5

21	5.5	3.8	13	e3.6	281	174	119	30	40	84	2.3	2.3
22	4.6	3.9	9.4	e3.2	148	98	60	31	33	33	2.2	2.4
23	e2.6	3.6	7.4	e2.9	96	62	28	24	28	21	2.1	2.6
24	e2.6	3.5	e6.0	e2.8	62	42	37	20	24	13	2.2	2.5
25	51	3.7	e5.0	e3.0	44	38	96	135	21	7.8	2.4	2.4

26	37	3.5	e4.8	e3.3	e30	36	329	158	701	5.3	2.5	7.1
27	15	3.5	e4.5	e4.5	e23	29	125	61	613	4.3	2.7	27
28	9.9	3.4	e4.7	e3.7	e21	31	74	33	221	3.7	2.9	3.4
29	127	3.3	e5.0	e3.5	---	40	76	44	67	3.6	2.9	2.3
30	79	3.2	e9.0	e3.7	---	33	64	33	42	3.3	3.1	2.0

31	20	---	38	e4.2	---	28	---	25	---	11	11	---

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1967 - 2003, BY WATER YEAR (WY)
MEAN	27.5	85.5	159	137	206	219	233	165	114	71.7	31.8	25.7
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 2002 CALENDAR YEAR		FOR 2003 WATER YEAR		WATER YEARS 1967 - 2003
ANNUAL TOTAL	55098.1		25545.0
ANNUAL MEAN	151		70.0		122
HIGHEST ANNUAL MEAN					244	1983
LOWEST ANNUAL MEAN					23.1	1980
HIGHEST DAILY MEAN	5420	May 8	1960	Jun 14	7740	Apr 12 1979
LOWEST DAILY MEAN	2.3 A	Dec 7-9	2.0 B	Sep 30	0.00	C
ANNUAL SEVEN-DAY MINIMUM	2.4	Dec 5	2.3	Aug 19	0.00	Sep 29 1968
MAXIMUM PEAK FLOW			2060	Jun 14	10600 D	Apr 12 1979
MAXIMUM PEAK STAGE			14.14	Jun 14	17.94 E	May 17 1990
INSTANTANEOUS LOW FLOW			1.8	Sep 30
ANNUAL RUNOFF (CFSM)	0.98		0.45		0.80
ANNUAL RUNOFF (INCHES)	13.31		6.17		10.80
10 PERCENT EXCEEDS	319		157		300
50 PERCENT EXCEEDS	16		12		16
90 PERCENT EXCEEDS	3.4		2.7		0.85

	A - Estimated, but may have been less during periods of estimated discharge in October and December.
	B - May have been less during periods of estimated discharge in October and December.
	C - Several days in 1967-68, 1973, 1988.
	D - Gage height, 17.52 ft.
	E - Discharge, 9,170 ft³/s.