05587900 DATA: Discharge Tables, 2001

Station list Available data
CAHOKIA CREEK BASIN

05587900 CAHOKIA CREEK AT EDWARDSVILLE, IL

LOCATION.-- Lat 38°49'28", long 89°58'29", in NW1/4SE1/4 sec.3, T.4 N., R.8 W., Madison County, Hydrologic Unit 07140101, on right bank at upstream side of bridge on State Highway 143 in Edwardsville, and at mile 9.4.

DRAINAGE AREA.-- 212 mi².

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

DISCHARGE: August 1969 to current year.

STAGE: Water years 1994-2001.

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 425.62 ft above sea level. Apr. 8, 1983, to July 2, 1985, nonrecording gage at same site and datum.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 8,200 ft³/s, April 12, 1979, gage height, 24.74 ft; no flow many days in 1987-88, 1991.

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

DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2000 TO SEPTEMBER 2001 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	104	24	68	e30	241	152	43	28	81	10	6.2	72
2	96	34	65	e29	151	137	41	27	44	9.3	12	28
3	74	37	61	e27	139	121	56	22	32	9.3	17	17
4	232	31	59	e28	113	106	56	20	768	15	8.2	12
5	1370	28	78	e29	94	91	47	19	474	13	7.7	9.7

6	1460	230	66	e31	89	81	46	26	566	9.0	7.0	8.5
7	270	923	51	e32	83	75	47	41	272	7.9	6.3	135
8	137	280	51	e34	96	70	43	26	118	7.2	5.7	55
9	92	836	46	e32	821	65	41	20	74	7.0	31	101
10	69	1220	46	e31	827	61	400	18	56	6.6	13	48

11	57	332	79	e30	258	59	1350	16	42	6.0	6.8	24
12	49	182	e110	e31	170	59	243	15	33	5.7	5.7	16
13	42	377	e90	e34	147	57	134	14	27	5.6	5.1	12
14	37	304	e70	e170	209	52	99	14	23	5.4	4.7	9.3
15	42	161	e55	e400	309	56	94	14	27	5.2	4.4	7.7

16	55	123	e45	e300	187	126	82	13	23	5.0	5.1	6.9
17	108	97	e48	e200	125	157	62	13	18	11	4.5	6.4
18	70	84	e50	e160	95	106	55	27	16	30	6.1	26
19	52	73	e44	e120	93	82	52	26	14	166	4.7	92
20	42	64	e40	e95	87	72	50	18	15	57	4.5	47

21	37	67	e37	e80	75	66	47	35	18	19	4.2	29
22	35	53	e34	e70	70	61	44	32	20	12	4.9	23
23	33	54	e31	e62	68	58	42	20	16	11	6.1	14
24	43	50	e29	e58	494	54	39	17	13	37	462	9.1
25	38	135	e27	e52	2700	49	36	15	12	27	79	6.3

26	30	250	e25	e47	914	45	33	14	11	15	51	4.5
27	29	183	e27	e45	260	43	32	14	10	10	43	3.6
28	28	127	e29	e42	187	43	30	13	9.2	8.7	18	3.0
29	25	92	e31	e120	---	44	27	12	8.6	7.9	11	2.4
30	25	76	e34	1120	---	45	26	13	12	7.3	12	2.0

31	24	---	e32	550	---	44	---	177	---	6.7	121	---

TOTAL	4805	6527	1558	4089	9102	2337	3397	779	2852.8	552.8	977.9	830.4
MEAN	155	218	50.3	132	325	75.4	113	25.1	95.1	17.8	31.5	27.7
MAX	1460	1220	110	1120	2700	157	1350	177	768	166	462	135
MIN	24	24	25	27	68	43	26	12	8.6	5.0	4.2	2.0
CFSM	.73	1.03	.24	.62	1.53	.36	.53	.12	.45	.08	.15	.13
IN.	.84	1.15	.27	.72	1.60	.41	.60	.14	.50	.10	.17	.15

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1969 - 2001, BY WATER YEAR (WY)
MEAN	43.4	103	168	162	222	288	321	194	143	56.0	31.5	43.1
MAX	366	649	915	834	782	1120	1251	1006	562	409	186	486
(WY)	1970	1986	1983	1974	1985	1978	1994	1990	1998	2000	2000	1993
MIN	.82	1.05	1.08	1.21	14.7	12.0	12.0	15.0	2.04	1.18	1.05	.15
(WY)	1996	1981	1990	1977	2000	2000	2000	1988	1988	1988	1991	1988

SUMMARY STATISTICS	FOR 2000 CALENDAR YEAR		FOR 2001 WATER YEAR		WATER YEARS 1969 - 2001
ANNUAL TOTAL	54343.4		37807.9
ANNUAL MEAN	148		104		147
HIGHEST ANNUAL MEAN					297	1985
LOWEST ANNUAL MEAN					32.4	1980
HIGHEST DAILY MEAN	6630	Jun 24	2700	Feb 25	7680	Apr 12 1979
LOWEST DAILY MEAN	1.7 A	Jan 02	2.0	Sep 30	.00	B
ANNUAL SEVEN-DAY MINIMUM	2.8	Jan 25	4.4	Sep 24	.00	Aug 29 1987
MAXIMUM PEAK FLOW			4140	Apr 11	8200	Apr 12 1979
MAXIMUM PEAK STAGE			15.85	Apr 11	24.74	Apr 12 1979
INSTANTANEOUS LOW FLOW			1.8	Sep 30
ANNUAL RUNOFF (CFSM)	.70		.49		.69
ANNUAL RUNOFF (INCHES)	9.54		6.63		9.43
10 PERCENT EXCEEDS	264		192		267
50 PERCENT EXCEEDS	30		42		26
90 PERCENT EXCEEDS	5.8		7.5		2.0

	A - Estimated, but may have been less during periods of estimated discharges in Jan. and Feb.
	B - Many days in 1987-88, 1991.