05530000 DATA: Discharge Tables, 2003

Station list Available data
ILLINOIS RIVER BASIN


LOCATION.-- Lat 42°02'58", long 87°55'05" (NAD of 1927), in NW1/4NW1/4 sec.18, T.41 N., R.12 E., Cook County, Hydrologic Unit 07120004, on right bank 10 ft upstream from bridge on State Highway 58 (Golf Road) in Des Plaines, 2 mi west of U.S. Highway 45, and at mile 3.0.

DRAINAGE AREA.-- 13.2 mi².

PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE
	DISCHARGE: October 1950 to current year.
	STAGE: Water years 1994 to current year.

REVISED RECORDS.-- WSP 1915: 1957-60. WDR IL-75-1: Drainage area.

GAGE.-- Water-stage recorder, phone telemeter, and crest-stage gage. Datum of gage is 634.02 ft above NGVD of 1929 (Cook County Highway Department bench mark). Prior to Sept. 9, 1968, at site 90 ft downstream and at datum 1.00 ft higher. Sept. 9, 1968, to Sept. 10, 1970, at present site at datum 1.00 ft higher.

REMARKS.-- Prior to Nov. 15, 1958, effluent from Arlington Heights sewage-treatment plant entered Weller Creek above station.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 1,590 ft³/s, June 10, 1967, gage height, 15.09 ft, present datum; no flow at times in most years.

REMARKS FOR CURRENT YEAR.-- Records fair except those for discharges greater than 100 ft³/s, and 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	0.76	0.77	3.6	1.3	e0.01	e0.80	8.7	282	1.4	0.49	101	3.0
2	17	1.8	0.86	0.37	e0.02	3.4	7.9	30	0.74	0.49	31	1.6
3	1.8	1.9	1.1	0.76	e0.02	27	16	8.7	1.1	0.51	28	0.89
4	35	2.2	1.5	0.81	e0.03	20	129	56	0.68	0.50	12	0.67
5	7.5	3.4	0.88	0.69	e0.04	25	50	120	0.46	29	4.5	1.3

6	1.4	3.8	0.32	1.6	e0.04	47	13	12	0.59	21	5.3	0.61
7	0.89	4.1	1.9	1.8	e0.02	30	17	7.7	0.46	14	3.3	0.52
8	1.0	0.43	0.56	0.55	e0.01	34	13	5.8	25	16	2.1	0.59
9	0.41	0.49	2.1	0.40	0.00	60	14	151	6.6	12	1.2	0.47
10	0.31	0.77	0.80	e0.23	0.02	39	13	49	3.1	10	0.95	0.40

11	0.15	0.53	0.53	e0.24	e0.01	29	8.3	57	2.4	3.1	0.86	0.49
12	0.17	0.52	0.49	e0.25	e0.01	89	5.0	14	1.5	1.9	0.80	1.9
13	0.16	0.97	0.37	e0.26	e0.01	102	3.4	6.9	1.3	2.7	0.76	0.93
14	0.09	2.1	0.21	e0.27	e0.02	97	2.8	52	1.3	3.4	5.2	42
15	0.11	6.1	2.1	e0.30	e0.02	79	2.5	16	1.1	106	2.7	7.0

16	0.12	1.0	0.31	e0.25	e0.03	55	2.0	6.0	0.96	8.5	1.1	3.4
17	0.39	0.66	0.32	e0.23	e0.05	27	2.1	3.1	0.96	10	1.0	0.94
18	0.88	1.4	57	e0.25	e0.11	4.6	2.4	2.2	40	4.8	0.69	0.58
19	0.14	12	26	e0.19	e0.20	4.4	2.2	1.6	14	1.9	0.62	1.7
20	0.13	1.3	19	e0.10	0.50	23	3.8	1.6	4.5	43	0.49	0.43

21	0.15	10	16	e0.08	e0.40	11	3.7	0.96	2.1	64	0.38	0.45
22	4.8	3.9	e12	e0.05	e0.15	8.1	2.2	0.92	1.5	7.7	0.36	2.4
23	0.49	0.60	10	e0.03	e0.13	6.7	0.81	0.68	0.88	2.8	0.61	1.0
24	0.25	0.30	7.4	e0.03	e0.10	6.5	1.5	0.64	0.72	1.3	0.38	1.1
25	12	0.74	5.8	e0.03	e0.08	22	1.3	0.60	0.76	0.65	0.49	0.62

26	1.5	0.42	4.2	e0.03	e1.0	7.5	1.1	0.62	0.99	0.50	0.81	12
27	0.46	0.66	e0.67	e0.02	e2.6	9.4	0.89	0.44	0.60	0.53	0.45	5.8
28	0.52	0.75	e0.29	e0.02	e0.40	34	2.4	25	0.59	1.6	0.33	1.7
29	0.57	0.79	0.51	e0.02	---	21	1.1	3.9	0.55	0.74	0.32	1.3
30	0.85	0.84	0.84	e0.02	---	10	70	2.5	0.79	0.53	0.31	1.0

31	0.65	---	0.63	e0.02	---	8.3	---	5.5	---	0.63	0.49	---

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1951 - 2003, BY WATER YEAR (WY)
MEAN	7.35	7.83	6.66	6.64	9.03	14.7	19.0	12.9	12.1	8.94	11.1	8.63
MAX	39.0	46.4	34.3	43.2	38.2	107	54.1	64.0	54.1	38.4	69.9	55.7
(WY)	2002	1986	1983	1974	1997	1979	1975	1974	1972	1957	1987	1972
MIN	0.13	0.31	0.077	0.077	0.19	0.72	2.24	1.44	0.90	2.41	0.32	0.60
(WY)	1963	1963	1964	1959	1972	1968	1989	1982	1982	1998	1973	1966

SUMMARY STATISTICS	FOR 2002 CALENDAR YEAR		FOR 2003 WATER YEAR		WATER YEARS 1951 - 2003
ANNUAL TOTAL	3826.69		3410.76
ANNUAL MEAN	10.5		9.34		10.4
HIGHEST ANNUAL MEAN					23.4	1974
LOWEST ANNUAL MEAN					3.07	1963
HIGHEST DAILY MEAN	392	Aug 22	282	May 1	1120	Aug 14 1987
LOWEST DAILY MEAN	0.09	A	0.00	Feb 9	0.00	B
ANNUAL SEVEN-DAY MINIMUM	0.10	Jun 30	0.01 C	Feb 7	0.00	Nov 4 1958
MAXIMUM PEAK FLOW			619	May 1	1590	Jun 10 1967
MAXIMUM PEAK STAGE			5.77	May 1	15.09 D	Jun 10 1967
ANNUAL RUNOFF (CFSM)	0.79		0.71		0.79
ANNUAL RUNOFF (INCHES)	10.78		9.61		10.71
10 PERCENT EXCEEDS	21		26		21
50 PERCENT EXCEEDS	1.4		1.1		2.2
90 PERCENT EXCEEDS	0.20		0.13		0.26

	A - July 3, 4, 5, Oct. 14.
	B - At times in most years.
	C - Estimated due to backwater from ice.
	D - Present datum.