05593900 DATA: Discharge Tables, 2002

Station list Available data
KASKASKIA RIVER BASIN


LOCATION.-- Lat 39°08'56", long 89°21'08" (NAD of 1927), in NW1/4SE1/4 sec.7, T.8 N., R.2 W., Montgomery County, Hydrologic Unit 07140203, on right bank at downstream side of bridge on County Highway 8, 4.5 mi northeast of Coffeen, 6.5 mi east of Hillsboro, and at mile 39.3.

DRAINAGE AREA.-- 55.5 mi².

PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE
	DISCHARGE: October 1963 to current year.
	STAGE: Water years 1994-2002.

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

GAGE.-- Water-stage recorder, phone telemeter, rain gage, and crest-stage gage. Datum of gage is 574.76 ft above NGVD of 1929.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 5,910 ft³/s, Dec. 7, 1966, from rating curve extended above 2,200 ft³/s, gage height, 14.45 ft; maximum gage height, 14.75 ft, Aug. 5, 1998, discharge, 5,030 ft³/s; no flow for many days in most years.

REMARKS FOR CURRENT YEAR.-- Records 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	0.10	7.4	77	e6.0	771	e20	52	273	47	1.5	0.24	0.10
2	0.10	6.7	33	e5.5	87	204	40	201	41	1.2	0.22	0.08
3	0.09	6.2	23	e5.0	51	158	30	72	37	1.0	0.24	0.08
4	0.07	6.0	18	e5.0	40	44	25	48	33	0.83	0.24	0.09
5	0.45	5.6	15	e5.2	30	31	22	38	31	0.77	0.21	0.10

6	0.35	5.5	13	e5.5	26	43	19	1760	27	0.67	0.20	0.12
7	1.0	5.6	12	e5.8	25	43	17	3830	26	0.61	0.24	0.13
8	1.1	5.4	12	e6.5	23	32	199	1560	23	0.74	0.27	0.13
9	0.70	5.1	10	7.6	22	1050	173	1190	19	0.76	0.28	0.13
10	9.1	5.1	9.5	7.8	22	250	55	280	19	0.85	0.29	0.15

11	23	5.0	9.0	7.7	23	79	34	243	290	1.5	0.29	0.13
12	190	5.0	17	7.4	21	62	153	2470	504	39	0.35	0.14
13	64	5.2	110	7.3	18	53	240	2900	542	5.6	0.33	0.14
14	110	5.1	322	7.3	16	46	57	389	566	1.3	0.33	0.15
15	26	4.8	124	7.0	16	65	36	156	72	0.68	0.27	0.13

16	133	4.8	470	6.7	15	247	24	172	247	0.48	0.21	0.18
17	38	4.8	1260	6.4	14	81	18	306	64	0.36	0.16	151
18	17	5.0	256	6.3	13	60	13	348	38	0.42	0.40	902
19	14	5.1	71	6.4	37	95	123	121	26	0.46	0.61	73
20	12	4.9	45	6.5	148	285	647	91	17	0.39	5.8	32

21	11	5.0	29	6.6	54	98	469	79	11	0.33	1.0	29
22	10	4.9	25	6.7	32	56	134	71	7.3	0.35	0.39	12
23	17	4.9	25	7.6	27	45	58	66	5.0	0.37	12	3.8
24	324	13	19	9.3	26	40	629	62	7.0	0.29	0.87	1.9
25	264	14	14	9.0	24	675	489	59	4.8	0.39	0.15	1.7

26	26	8.1	e11	7.7	e20	170	83	53	15	0.45	0.15	1.4
27	14	6.2	e9.5	7.2	e18	382	679	91	3.5	0.45	0.16	0.97
28	11	27	e8.5	7.0	e18	654	934	592	2.7	0.35	0.14	0.76
29	9.4	106	e7.5	7.0	---	271	132	96	2.2	0.28	0.12	0.69
30	8.6	453	e7.0	87	---	121	70	69	1.9	0.29	0.11	0.94

31	7.5	---	e6.5	1110	---	70	---	55	---	0.27	0.11	---

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1964 - 2002, BY WATER YEAR (WY)
MEAN	15.62	25.54	54.62	57.55	66.49	75.99	76.30	68.59	39.01	17.29	10.91	14.22
MAX	192	193	256	279	222	313	347	572	203	176	127	181
(WY)	1970	1994	1983	1974	1982	1978	1994	2002	1973	1982	1998	1993
MIN	0.000	0.082	0.049	0.16	1.75	2.90	4.09	1.36	0.13	0.000	0.000	0.000
(WY)	1964	1998	1977	1977	2000	2000	2000	1988	1988	1964	1988	1964

SUMMARY STATISTICS	FOR 2001 CALENDAR YEAR		FOR 2002 WATER YEAR		WATER YEARS 1964 - 2002
ANNUAL TOTAL	16029.31		41149.32
ANNUAL MEAN	43.92		112.7		43.39
HIGHEST ANNUAL MEAN					113	2002
LOWEST ANNUAL MEAN					6.76	1992
HIGHEST DAILY MEAN	1260	Dec 17	3830	May 7	3830	May 7 2002
LOWEST DAILY MEAN	0.07	Oct 4	0.07	Oct 4	0.00	A
ANNUAL SEVEN-DAY MINIMUM	0.11	Sep 28	0.10	Aug 30	0.00	Oct 1 1963
MAXIMUM PEAK FLOW			5680	May 7	5910 B	Dec 7 1966
MAXIMUM PEAK STAGE			14.56	May 7	14.75 C	Aug 5 1998
INSTANTANEOUS LOW FLOW			0.05	Oct 4
ANNUAL RUNOFF (CFSM)	0.79		2.03		0.78
ANNUAL RUNOFF (INCHES)	10.74		27.58		10.62
10 PERCENT EXCEEDS	67		267		63
50 PERCENT EXCEEDS	9.0		14		4.9
90 PERCENT EXCEEDS	0.49		0.26		0.10

	A - Many days in most years.
	B - From rating curve extended above 2,200 ft³/s, gage height, 14.45 ft.
	C - Discharge, 5,030 ft³/s.