05587900 DATA: Discharge Tables, 2000

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 1994-2000.

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.

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

DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1999 TO SEPTEMBER 2000 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	4.2	e1.0	e2.6	e1.8	e3.5	9.0	7.9	8.5	31	89	209	37
2	3.7	e4.0	e2.3	e1.7	4.3	8.2	7.8	7.5	22	78	132	30
3	4.0	e3.5	e3.0	e6.0	5.0	9.1	7.3	7.0	16	79	91	27
4	4.1	e3.0	e15	e10	5.0	9.8	6.9	6.6	14	65	66	24
5	3.5	e2.8	e8.0	14	e4.5	11	6.2	7.3	17	51	57	21

6	2.8	e2.6	4.6	10	e4.0	10	6.7	6.5	15	56	75	19
7	2.4	e2.4	7.9	7.7	e3.7	9.5	9.8	122	12	57	164	18
8	13	e2.3	6.4	7.7	e3.5	8.5	12	62	10	35	1060	17
9	8.5	e2.3	7.0	7.4	e3.3	7.6	11	26	9.0	27	389	16
10	5.0	e2.2	13	6.8	e5.3	6.7	10	17	8.7	24	174	33

11	3.0	e2.1	9.1	6.3	7.3	7.2	8.7	12	15	384	102	35
12	1.9	e2.1	11	5.6	6.9	7.7	7.5	9.6	32	266	72	78
13	1.6	e2.0	8.0	5.5	7.6	8.6	8.5	7.8	24	308	58	76
14	1.9	e2.0	7.0	4.6	6.2	9.9	9.3	6.6	46	76	46	51
15	2.6	e1.9	5.9	4.9	4.8	9.9	8.6	7.1	35	43	37	33

16	3.6	e1.9	5.5	4.6	4.6	9.4	8.3	7.1	16	30	30	22
17	3.8	e1.8	4.7	5.8	4.9	8.5	27	5.8	35	28	50	19
18	e3.0	e1.7	4.1	5.7	159	8.3	23	5.6	31	504	141	18
19	e2.5	e1.7	3.3	5.6	57	10	12	18	18	2350	53	16
20	e2.1	e1.7	3.1	5.7	30	23	10	17	30	285	37	31

21	e1.8	e1.7	2.6	4.7	16	38	9.7	8.6	984	141	30	81
22	e1.6	e1.6	2.3	5.0	12	32	11	7.7	227	85	26	70
23	e1.5	e2.2	2.3	5.0	9.2	19	11	40	559	59	23	15
24	e1.3	e3.5	2.3	3.8	8.4	14	14	15	6630	45	976	41
25	e1.2	e6.0	2.1	e3.2	7.7	11	26	13	4440	35	923	813

26	e1.1	e5.0	e2.0	e3.0	9.8	10	25	46	2050	28	283	756
27	e1.0	e4.5	e1.9	e2.7	11	12	18	692	982	24	172	271
28	e.90	e3.7	e1.9	e2.5	11	12	14	307	263	1610	110	175
29	e.90	e3.2	e1.8	e2.4	9.6	13	12	129	163	3970	74	136
30	e.80	e2.9	e1.8	e2.6	---	11	10	69	113	1530	58	116

31	e.80	---	e1.8	e3.0	---	8.9	---	47	---	321	46	---

TOTAL	90.10	79.3	154.3	165.3	425.1	372.8	359.2	1741.3	16847.7	12683	5764	3095
MEAN	2.91	2.64	4.98	5.33	14.7	12.0	12.0	56.2	562	409	186	103
MAX	13	6.0	15	14	159	38	27	692	6630	3970	1060	813
MIN	.80	1.0	1.8	1.7	3.3	6.7	6.2	5.6	8.7	24	23	15
CFSM	.01	.01	.02	.03	.07	.06	.06	.26	2.65	1.93	.88	.49
IN.	.02	.01	.03	.03	.07	.07	.06	.31	2.96	2.23	1.01	.54

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1969 - 2000, BY WATER YEAR (WY)
MEAN	39.8	99.6	172	162	219	295	328	199	144	57.2	31.5	43.6
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 1999 CALENDAR YEAR		FOR 2000 WATER YEAR		WATER YEARS 1969 - 2000
ANNUAL TOTAL	41423.30		41777.10
ANNUAL MEAN	113		114		149
HIGHEST ANNUAL MEAN					297	1985
LOWEST ANNUAL MEAN					32.4	1980
HIGHEST DAILY MEAN	5410	Feb 7	6630	Jun 24	7680	Apr 12 1979
LOWEST DAILY MEAN	.80 A	Oct 30,31	.80 A	Oct 30,31	.00	B
ANNUAL SEVEN-DAY MINIMUM	.93	Oct 26	.93	Oct 26	.00	Aug 29 1987
INSTANTANEOUS PEAK FLOW			6900	Jun 24	8200	Apr 12 1979
INSTANTANEOUS PEAK STAGE			21.06	Jun 24	24.74	Apr 12 1979
ANNUAL RUNOFF (CFSM)	.54		.54		.70
ANNUAL RUNOFF (INCHES)	7.27		7.33		9.52
10 PERCENT EXCEEDS	198		141		271
50 PERCENT EXCEEDS	16		9.8		25
90 PERCENT EXCEEDS	2.2		2.1		2.0

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