05532000 DATA: Discharge Tables, 2001

Station list Available data
ILLINOIS RIVER BASIN

05532000 ADDISON CREEK AT BELLWOOD, IL

LOCATION.-- Lat 41°52'54", long 87°52'09", in SW1/4SE1/4 sec.9, T.39 N., R.12 E., Cook County, Hydrologic Unit 07120004, on right bank at downstream side of bridge on Washington Boulevard in Bellwood, 1,050 ft upstream from railroad bridge, and at mile 3.2.

DRAINAGE AREA.-- 17.9 mi².

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

DISCHARGE: August 1950 to June 1951, October 1951 to current year.

STAGE: Water years 1994-2001.

SURFACE-WATER QUALITY

CHEMICAL: Water years 1979-91, July 2000.

MISCELLANEOUS: Water year 2000; contaminants in streambed sediments, water year 2000.

BIOLOGICAL

BENTHIC MACROINVERTEBRATES: Water year 2000.

HABITAT: Water year 2000.

REVISED RECORDS.-- WSP 1338: 1952. WSP 1708: 1958, 1959(P). WDR IL-75-1: Drainage area.

GAGE.-- Water-stage recorder and phone telemeter. Datum of gage is 617.65 ft above sea level (Cook County Highway Department bench mark). Prior to Oct. 26, 1951, at datum 2.00 ft higher.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 1,120 ft³/s, Aug. 14, 1987, gage height, 12.84 ft; no flow Sept. 14, 1962.

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	7.9	9.1	9.9	e5.0	31	e24	10	7.9	57	2.3	3.1	64
2	7.4	17	8.1	e5.2	21	18	9.5	7.8	37	2.1	69	47
3	15	7.4	7.5	e5.4	e13	15	9.2	15	25	8.2	13	36
4	127	6.4	6.9	e5.5	e10	12	9.0	9.0	17	3.4	7.4	34
5	37	5.7	e6.5	e5.6	e9.5	10	22	7.3	75	2.3	14	33

6	36	23	e6.1	e5.6	e9.0	10	122	7.2	35	1.9	13	49
7	16	66	e5.9	e5.5	11	10	60	23	18	28	15	65
8	12	28	e5.7	e5.5	52	10	23	10	14	4.8	17	22
9	8.8	108	e5.5	e5.4	150	9.8	30	7.3	12	2.4	29	38
10	9.3	62	e5.4	e5.3	83	9.1	18	7.8	9.0	2.1	46	14

11	7.9	36	e6.0	e5.2	58	14	33	54	8.8	10	15	6.1
12	8.7	13	e8.0	e5.2	54	24	46	6.3	79	12	5.6	5.4
13	9.2	34	e7.6	e5.6	53	16	16	11	15	8.6	4.5	5.4
14	8.3	16	e7.1	35	72	12	15	12	25	9.1	4.2	4.9
15	8.2	13	e6.7	45	33	46	53	3.7	29	9.5	13	4.4

16	8.7	11	e6.3	31	23	68	23	21	8.1	6.7	54	3.6
17	8.7	10	e5.9	20	18	58	14	43	4.4	4.8	15	5.7
18	8.9	8.7	e5.6	16	e14	49	13	12	15	2.6	10	20
19	9.1	7.7	e5.4	14	12	35	11	3.5	5.5	2.3	36	134
20	9.5	7.3	e5.2	12	e11	26	37	2.5	4.9	1.9	8.9	74

21	9.3	e7.0	e5.0	e11	e10	21	69	18	20	1.7	5.5	116
22	8.3	e6.5	e4.8	e10	e9.7	18	26	21	13	36	23	61
23	8.0	e6.1	e4.7	e9.0	e9.5	16	41	21	11	79	46	105
24	8.3	e5.8	e4.6	e8.2	84	14	37	16	10	34	37	49
25	7.9	9.0	e4.5	e7.6	83	13	31	33	10	64	132	45

26	8.8	30	e4.5	e7.2	47	12	23	61	10	34	62	34
27	8.2	14	e4.6	e6.9	36	13	12	54	10	15	46	35
28	8.1	14	e4.6	e6.6	31	13	9.6	23	10	6.5	31	17
29	7.0	11	e4.7	e30	---	11	7.9	18	8.4	15	19	12
30	6.6	9.2	e4.8	89	---	11	7.7	15	3.5	7.9	29	11

31	7.5	---	e4.9	51	---	10	---	29	---	3.5	105	---

TOTAL	451.6	601.9	183.0	479.5	1047.7	627.9	837.9	580.3	599.6	421.6	928.2	1150.5
MEAN	14.6	20.1	5.90	15.5	37.4	20.3	27.9	18.7	20.0	13.6	29.9	38.3
MAX	127	108	9.9	89	150	68	122	61	79	79	132	134
MIN	6.6	5.7	4.5	5.0	9.0	9.1	7.7	2.5	3.5	1.7	3.1	3.6
CFSM	.81	1.12	.33	.86	2.09	1.13	1.56	1.05	1.12	.76	1.67	2.14
IN.	.94	1.25	.38	1.00	2.18	1.30	1.74	1.21	1.25	.88	1.93	2.39

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1950 - 2001, BY WATER YEAR (WY)
MEAN	12.6	14.7	13.8	13.2	16.0	23.0	27.1	20.0	17.3	14.1	16.6	14.4
MAX	46.5	44.5	53.5	39.2	51.5	72.6	59.0	57.9	41.5	46.6	103	61.4
(WY)	1955	1986	1983	1993	1997	1979	1983	1990	1993	1957	1987	1961
MIN	.22	.46	1.63	.98	1.38	6.69	7.87	4.25	1.64	.68	.42	.31
(WY)	1953	1954	1954	1954	1963	1956	1971	1952	1956	1955	1953	1952

SUMMARY STATISTICS	FOR 2000 CALENDAR YEAR		FOR 2001 WATER YEAR		WATER YEARS 1950 - 2001
ANNUAL TOTAL	7386.3		7909.7
ANNUAL MEAN	20.2		21.7		16.9
HIGHEST ANNUAL MEAN					27.6	1983
LOWEST ANNUAL MEAN					3.98	1953
HIGHEST DAILY MEAN	206	Apr 20	150	Feb 9	768	Aug 14 1987
LOWEST DAILY MEAN	3.8	Jul 21	1.7	Jul 21	.00	Sep 14 1962
ANNUAL SEVEN-DAY MINIMUM	4.6	Dec 23	3.4	Jun 30	.10	Oct 6 1952
MAXIMUM PEAK FLOW			379	Sep 20	1120	Aug 14 1987
MAXIMUM PEAK STAGE			6.27	Sep 20	12.84	Aug 14 1987
INSTANTANEOUS LOW FLOW			1.5	Jul 11, 21, 22
ANNUAL RUNOFF (CFSM)	1.13		1.21		.95
ANNUAL RUNOFF (INCHES)	15.35		16.44		12.86
10 PERCENT EXCEEDS	47		54		38
50 PERCENT EXCEEDS	10		11		8.4
90 PERCENT EXCEEDS	5.3		5.0		2.5