05539900 DATA: Discharge Tables, 2002

Station list Available data
ILLINOIS RIVER BASIN


LOCATION.-- Lat 41°54'39", long 88°10'44" (NAD of 1927), in SE1/4NW1/4 sec.35, T.40 N., R.9 E., Du Page County, Hydrologic Unit 07120004, on left bank at downstream side of bridge on State Highway 64, 2 mi northeast of West Chicago, and at mile 49.2.

DRAINAGE AREA.-- 28.5 mi².

PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE
	DISCHARGE: July 1961 to current year.
	STAGE: Water years 1994-2002.
SURFACE-WATER QUALITY
	CHEMICAL: Water years 1979-91.

REVISED RECORDS.-- WDR IL-75-1: Drainage area. WDR IL-77-1: 1966-67(M).

GAGE.-- Water-stage recorder and phone telemeter. Datum of gage is 717.76 ft above NGVD of 1929.

REMARKS.-- Diurnal fluctuation at low flow caused by sewage-treatment plant upstream from station.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 984 ft³/s, Dec. 3, 1982, gage height, 10.44 ft; maximum gage height, 10.91 ft, Oct. 14, 2001; minimum discharge, .20 ft³/s, July 1, 5, 8-12, 1963.

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	33	54	82	21	47	46	37	38	22	22	22	19
2	31	52	56	20	44	52	54	118	19	21	24	51
3	32	48	45	21	38	61	40	57	24	19	22	43
4	37	46	39	19	36	53	33	45	466	20	33	26
5	168	43	39	21	31	44	32	39	562	18	94	22

6	74	41	34	22	28	51	37	37	248	18	36	21
7	56	45	33	22	29	88	59	32	168	18	28	20
8	48	49	27	20	36	268	175	29	126	18	25	20
9	40	41	24	22	55	311	317	53	100	147	21	19
10	47	36	21	23	128	165	139	34	87	38	20	19

11	71	34	16	23	100	108	102	131	118	31	18	21
12	143	33	17	23	82	87	82	607	93	24	17	18
13	326	29	99	25	71	71	67	299	77	19	107	15
14	824	38	48	25	60	60	54	159	81	18	238	15
15	483	36	35	25	57	54	49	112	72	16	88	16

16	282	31	34	25	55	40	40	168	54	17	61	16
17	192	29	43	25	50	35	39	195	46	16	46	14
18	149	29	35	24	46	32	35	113	40	17	34	16
19	116	35	39	24	75	27	32	90	35	16	32	27
20	93	30	37	24	255	27	41	75	33	15	25	61

21	81	27	28	25	173	25	67	59	33	16	18	46
22	82	27	34	26	110	23	76	48	30	18	480	83
23	486	24	67	31	90	22	45	44	28	16	463	40
24	400	53	44	34	77	22	48	51	28	14	188	26
25	336	73	35	33	67	19	56	54	25	16	128	20

26	181	46	30	33	60	19	38	43	25	17	99	19
27	137	41	29	33	57	17	55	36	24	26	78	18
28	117	38	27	34	50	17	101	33	24	26	56	16
29	98	42	24	31	---	56	59	28	23	48	36	19
30	82	117	24	27	---	62	44	27	23	31	27	19

31	65	---	24	36	---	39	---	24	---	23	21	---

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1961 - 2002, BY WATER YEAR (WY)
MEAN	27.92	33.56	33.90	30.73	40.45	53.31	62.20	46.30	39.56	26.61	30.53	30.17
MAX	171	111	134	81.5	118	191	135	113	103	63.8	135	124
(WY)	2002	1986	1983	1999	1997	1979	1983	1996	1996	1993	1987	2001
MIN	1.54	1.62	0.97	0.87	0.75	12.3	14.7	13.9	2.02	5.36	1.50	1.22
(WY)	1964	1963	1963	1963	1963	1968	1963	1971	1963	1966	1961	1962

SUMMARY STATISTICS	FOR 2001 CALENDAR YEAR		FOR 2002 WATER YEAR		WATER YEARS 1961 - 2002
ANNUAL TOTAL	23524.6		24365
ANNUAL MEAN	64.45		66.75		37.89
HIGHEST ANNUAL MEAN					66.8	2002
LOWEST ANNUAL MEAN					6.41	1963
HIGHEST DAILY MEAN	824	Oct 14	824	Oct 14	824	Oct 14 2001
LOWEST DAILY MEAN	9.7	Jul 13	14	Jul 24,Sep 17	0.20	Jul 5 1963
ANNUAL SEVEN-DAY MINIMUM	13	Jul 10	16	Sep 12	0.26	Jul 5 1963
MAXIMUM PEAK FLOW			913	Oct 14	984 A	Dec 3 1982
MAXIMUM PEAK STAGE			10.91	Oct 14	10.91	Oct 14 2001
INSTANTANEOUS LOW FLOW			6.5	Jan 11	0.20	B
ANNUAL RUNOFF (CFSM)	2.26		2.34		1.33
ANNUAL RUNOFF (INCHES)	30.71		31.80		18.06
10 PERCENT EXCEEDS	117		129		77
50 PERCENT EXCEEDS	36		37		24
90 PERCENT EXCEEDS	17		19		8.0

	A - Gage height, 10.44 ft.
	B - July 1, 5, 8-12, 1963.

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	33	54	82	21	47	46	37	38	22	22	22	19
2	31	52	56	20	44	52	54	118	19	21	24	51
3	32	48	45	21	38	61	40	57	24	19	22	43
4	37	46	39	19	36	53	33	45	466	20	33	26
5	168	43	39	21	31	44	32	39	562	18	94	22

6	74	41	34	22	28	51	37	37	248	18	36	21
7	56	45	33	22	29	88	59	32	168	18	28	20
8	48	49	27	20	36	268	175	29	126	18	25	20
9	40	41	24	22	55	311	317	53	100	147	21	19
10	47	36	21	23	128	165	139	34	87	38	20	19

11	71	34	16	23	100	108	102	131	118	31	18	21
12	143	33	17	23	82	87	82	607	93	24	17	18
13	326	29	99	25	71	71	67	299	77	19	107	15
14	824	38	48	25	60	60	54	159	81	18	238	15
15	483	36	35	25	57	54	49	112	72	16	88	16

16	282	31	34	25	55	40	40	168	54	17	61	16
17	192	29	43	25	50	35	39	195	46	16	46	14
18	149	29	35	24	46	32	35	113	40	17	34	16
19	116	35	39	24	75	27	32	90	35	16	32	27
20	93	30	37	24	255	27	41	75	33	15	25	61

21	81	27	28	25	173	25	67	59	33	16	18	46
22	82	27	34	26	110	23	76	48	30	18	480	83
23	486	24	67	31	90	22	45	44	28	16	463	40
24	400	53	44	34	77	22	48	51	28	14	188	26
25	336	73	35	33	67	19	56	54	25	16	128	20

26	181	46	30	33	60	19	38	43	25	17	99	19
27	137	41	29	33	57	17	55	36	24	26	78	18
28	117	38	27	34	50	17	101	33	24	26	56	16
29	98	42	24	31	---	56	59	28	23	48	36	19
30	82	117	24	27	---	62	44	27	23	31	27	19

31	65	---	24	36	---	39	---	24	---	23	21	---

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	33	54	82	21	47	46	37	38	22	22	22	19
2	31	52	56	20	44	52	54	118	19	21	24	51
3	32	48	45	21	38	61	40	57	24	19	22	43
4	37	46	39	19	36	53	33	45	466	20	33	26
5	168	43	39	21	31	44	32	39	562	18	94	22

6	74	41	34	22	28	51	37	37	248	18	36	21
7	56	45	33	22	29	88	59	32	168	18	28	20
8	48	49	27	20	36	268	175	29	126	18	25	20
9	40	41	24	22	55	311	317	53	100	147	21	19
10	47	36	21	23	128	165	139	34	87	38	20	19

11	71	34	16	23	100	108	102	131	118	31	18	21
12	143	33	17	23	82	87	82	607	93	24	17	18
13	326	29	99	25	71	71	67	299	77	19	107	15
14	824	38	48	25	60	60	54	159	81	18	238	15
15	483	36	35	25	57	54	49	112	72	16	88	16

16	282	31	34	25	55	40	40	168	54	17	61	16
17	192	29	43	25	50	35	39	195	46	16	46	14
18	149	29	35	24	46	32	35	113	40	17	34	16
19	116	35	39	24	75	27	32	90	35	16	32	27
20	93	30	37	24	255	27	41	75	33	15	25	61

21	81	27	28	25	173	25	67	59	33	16	18	46
22	82	27	34	26	110	23	76	48	30	18	480	83
23	486	24	67	31	90	22	45	44	28	16	463	40
24	400	53	44	34	77	22	48	51	28	14	188	26
25	336	73	35	33	67	19	56	54	25	16	128	20

26	181	46	30	33	60	19	38	43	25	17	99	19
27	137	41	29	33	57	17	55	36	24	26	78	18
28	117	38	27	34	50	17	101	33	24	26	56	16
29	98	42	24	31	---	56	59	28	23	48	36	19
30	82	117	24	27	---	62	44	27	23	31	27	19

31	65	---	24	36	---	39	---	24	---	23	21	---

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	33	54	82	21	47	46	37	38	22	22	22	19
2	31	52	56	20	44	52	54	118	19	21	24	51
3	32	48	45	21	38	61	40	57	24	19	22	43
4	37	46	39	19	36	53	33	45	466	20	33	26
5	168	43	39	21	31	44	32	39	562	18	94	22

6	74	41	34	22	28	51	37	37	248	18	36	21
7	56	45	33	22	29	88	59	32	168	18	28	20
8	48	49	27	20	36	268	175	29	126	18	25	20
9	40	41	24	22	55	311	317	53	100	147	21	19
10	47	36	21	23	128	165	139	34	87	38	20	19

11	71	34	16	23	100	108	102	131	118	31	18	21
12	143	33	17	23	82	87	82	607	93	24	17	18
13	326	29	99	25	71	71	67	299	77	19	107	15
14	824	38	48	25	60	60	54	159	81	18	238	15
15	483	36	35	25	57	54	49	112	72	16	88	16

16	282	31	34	25	55	40	40	168	54	17	61	16
17	192	29	43	25	50	35	39	195	46	16	46	14
18	149	29	35	24	46	32	35	113	40	17	34	16
19	116	35	39	24	75	27	32	90	35	16	32	27
20	93	30	37	24	255	27	41	75	33	15	25	61

21	81	27	28	25	173	25	67	59	33	16	18	46
22	82	27	34	26	110	23	76	48	30	18	480	83
23	486	24	67	31	90	22	45	44	28	16	463	40
24	400	53	44	34	77	22	48	51	28	14	188	26
25	336	73	35	33	67	19	56	54	25	16	128	20

26	181	46	30	33	60	19	38	43	25	17	99	19
27	137	41	29	33	57	17	55	36	24	26	78	18
28	117	38	27	34	50	17	101	33	24	26	56	16
29	98	42	24	31	---	56	59	28	23	48	36	19
30	82	117	24	27	---	62	44	27	23	31	27	19

31	65	---	24	36	---	39	---	24	---	23	21	---