05594800 DATA: Discharge Tables, 2003

Station list Available data
KASKASKIA RIVER BASIN


LOCATION.-- Lat 38°24'22", long 89°52'26" (NAD of 1927), in NE1/4NE1/4 sec.33, T.1 S., R.7 W., St. Clair County, Hydrologic Unit 07140204, on left bank at downstream side of bridge on State Highway 15, 2.2 mi southeast of Freeburg, 4.8 mi northwest of Fayetteville, and at mile 9.6.

DRAINAGE AREA.-- 464 mi².

PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE
	DISCHARGE: October 1970 to current year.
	STAGE: Water years 1995 to current year. October 1980 to September 1994 (8:00 a.m. gage heights).
SURFACE-WATER QUALITY
	CHEMICAL: Water years 1978-91.

REVISED RECORDS.-- WDR IL-73-1: Drainage area.

GAGE.-- Water-stage recorder, U.S. Army Corps of Engineers satellite telemeter, and crest-stage gage. Datum of gage is 381.40 ft above NGVD of 1929.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 15,300 ft³/s, May 19, 1995, gage height, 25.38 ft; no flow, Aug. 4-6, 1993, during period of backwater from the Mississippi River; minimum daily discharge unaffected by backwater, 0.41 ft³/s, Sept. 17, 1983.

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	12	171	20	398	e29	e105	146	168	126	200	25	400
2	11	84	20	263	e33	e140	124	139	101	167	27	1100
3	9.6	57	19	153	39	253	103	117	111	114	32	1280
4	12	50	19	117	39	222	96	154	130	91	335	1430
5	22	50	e18	99	39	191	282	998	119	79	961	1140

6	25	74	e17	86	35	181	262	1220	107	82	1010	267
7	20	80	e17	81	35	165	163	1440	110	61	489	115
8	15	61	e18	86	29	132	160	1580	109	51	153	74
9	12	46	e19	85	e26	113	132	1480	92	46	81	55
10	11	48	e22	77	e25	101	113	1150	141	48	55	42

11	10	41	24	66	e24	91	107	1100	1360	88	43	37
12	8.6	37	23	57	e23	160	94	1290	3450	69	35	30
13	8.4	31	23	e46	e23	456	83	1700	5390	47	29	25
14	8.4	27	24	e41	e26	744	73	1750	3940	40	26	22
15	9.5	27	25	e37	e75	588	67	1310	3080	37	25	22

16	9.1	29	26	e32	189	351	64	433	2930	34	23	21
17	9.3	34	25	e29	198	229	94	227	2600	31	22	19
18	7.8	32	24	e27	251	175	127	187	2020	43	22	17
19	13	29	38	e26	242	251	100	167	998	419	21	16
20	51	27	128	e25	659	702	92	152	278	819	19	16

21	35	26	115	e24	949	807	150	136	183	689	18	16
22	19	24	81	e22	972	595	193	121	144	249	17	18
23	12	23	57	e21	720	361	150	111	117	107	15	16
24	9.9	22	e40	e21	386	246	119	101	96	67	14	14
25	105	21	e34	e20	235	190	209	257	81	50	14	13

26	756	22	e31	e20	e145	189	333	583	660	41	14	15
27	300	21	e30	e21	e125	181	595	369	1270	34	14	527
28	92	21	e29	e22	e110	159	372	218	1470	30	13	625
29	407	20	e32	e23	---	193	278	165	1370	28	74	145
30	1030	20	e40	e25	---	216	229	184	517	27	88	50

31	647	---	104	e26	---	173	---	147	---	26	208	---

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1971 - 2003, BY WATER YEAR (WY)
MEAN	95.5	270	420	376	597	667	674	555	366	163	122	99.4
MAX	506	1543	2380	1438	1954	2390	1771	3579	1214	902	822	1142
(WY)	1987	1994	1983	1974	1982	1978	1979	1995	1998	2000	1998	1993
MIN	2.55	2.21	6.86	3.87	42.2	34.5	45.3	25.4	12.4	12.9	10.7	4.31
(WY)	1972	1972	1977	1977	1978	1981	1981	1976	1988	1976	1971	1983

SUMMARY STATISTICS	FOR 2002 CALENDAR YEAR		FOR 2003 WATER YEAR		WATER YEARS 1971 - 2003
ANNUAL TOTAL	153373.6		95278.6
ANNUAL MEAN	420		261		365
HIGHEST ANNUAL MEAN					660	1973
LOWEST ANNUAL MEAN					74.6	1976
HIGHEST DAILY MEAN	7210	May 11	5390	Jun 13	15000	May 19 1995
LOWEST DAILY MEAN	7.8	Oct 18	7.8	Oct 18	0.00	A
ANNUAL SEVEN-DAY MINIMUM	8.7	Oct 12	8.7	Oct 12	0.75	Sep 15 1983
MAXIMUM PEAK FLOW			5730	Jun 13	15300	May 19 1995
MAXIMUM PEAK STAGE			17.81	Jun 13	25.38	May 19 1995
INSTANTANEOUS LOW FLOW			7.2	Oct 18
ANNUAL RUNOFF (CFSM)	0.91		0.56		0.79
ANNUAL RUNOFF (INCHES)	12.30		7.64		10.70
10 PERCENT EXCEEDS	1200		730		1050
50 PERCENT EXCEEDS	71		81		74
90 PERCENT EXCEEDS	17		18		9.2

A - Aug. 4-6, 1993, during period of backwater from Mississippi River. Minimum daily discharge unaffected by backwater, 0.4 ft³/s, Sept. 17, 1983.