05540160 DATA: Discharge Tables, 2000

ILLINOIS RIVER BASIN

05540160 EAST BRANCH DU PAGE RIVER NEAR DOWNERS GROVE, IL

LOCATION.-- Lat 41°49'54", long 88°02'51", in SE1/4SW1/4 sec.25, T.39 N., R.10 E., Du Page County, Hydrologic Unit 07120004, on upstream side of bridge on State Highway 56, 2.2 mi northwest of Downers Grove, and at mile 15.0.

DRAINAGE AREA.-- 26.6 mi².

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

DISCHARGE: October 1989 to current year.

STAGE: Water years 1994-2000.

PARTIAL RECORD: Annual maximum, water years 1961-76.

GAGE.-- Water-stage recorder, phone telemeter, and crest-stage gage. Datum of gage is 660.00 ft above sea level. Prior to July 19, 1989, at datum 12.21 ft higher.

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

REMARKS FOR CURRENT YEAR.-- Records good.

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	41	21	20	20	23	41	23	35	78	32	57	21
2	33	20	20	20	22	34	23	33	80	33	53	20
3	51	20	25	24	23	32	23	31	57	260	36	19
4	62	20	34	29	23	32	22	28	42	150	30	20
5	42	20	163	24	23	32	21	28	56	83	41	20

6	32	20	103	22	23	33	22	26	45	51	62	20
7	29	21	59	20	23	32	30	26	36	41	90	20
8	27	21	41	22	22	30	42	34	32	37	61	20
9	25	19	34	28	25	27	35	176	29	35	43	20
10	29	18	28	38	30	23	31	124	29	134	35	21

11	25	18	26	33	33	23	29	89	77	88	30	69
12	24	19	24	29	31	23	26	162	144	56	26	261
13	23	20	24	27	30	23	20	187	109	44	25	142
14	22	20	23	26	29	23	21	75	155	37	24	103
15	22	20	25	26	29	28	23	55	112	31	24	61

16	25	19	26	25	30	41	38	54	61	29	25	41
17	23	19	23	25	32	33	112	46	46	29	46	33
18	22	19	23	25	33	27	62	62	39	26	37	29
19	21	19	22	24	36	27	106	72	34	25	31	26
20	21	19	22	24	37	46	394	50	46	24	28	35

21	20	22	22	23	41	41	478	43	51	25	26	34
22	20	22	23	24	68	35	247	39	34	23	24	67
23	20	31	21	24	82	32	139	36	33	23	23	88
24	20	25	19	23	115	31	96	32	77	23	22	62
25	20	23	20	22	94	29	68	30	158	22	21	45

26	21	22	20	22	69	26	55	28	85	23	23	34
27	20	20	20	22	53	29	47	32	52	23	22	30
28	21	20	20	21	42	28	41	54	44	22	21	27
29	20	18	21	22	40	25	37	43	45	23	21	25
30	20	20	21	24	---	23	34	38	35	71	19	25

31	21	---	20	24	---	22	---	70	---	76	22	---

TOTAL	822	615	992	762	1161	931	2345	1838	1921	1599	1048	1438
MEAN	26.5	20.5	32.0	24.6	40.0	30.0	78.2	59.3	64.0	51.6	33.8	47.9
MAX	62	31	163	38	115	46	478	187	158	260	90	261
MIN	20	18	19	20	22	22	20	26	29	22	19	19
CFSM	1.00	.77	1.20	.92	1.51	1.13	2.94	2.23	2.41	1.94	1.27	1.80
IN.	1.15	.86	1.39	1.07	1.62	1.30	3.28	2.57	2.69	2.24	1.47	2.01

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1990 - 2000, BY WATER YEAR (WY)
MEAN	35.3	49.5	38.6	50.1	53.2	57.0	75.2	68.6	58.3	39.0	39.1	32.9
MAX	70.6	92.8	56.2	100	138	87.8	139	121	97.2	96.5	63.4	49.6
(WY)	1999	1991	1991	1993	1997	1993	1993	1990	1993	1996	1998	1993
MIN	18.5	20.5	16.3	24.6	28.9	29.9	33.3	22.2	21.5	19.9	18.4	19.7
(WY)	1990	2000	1990	2000	1996	1996	1990	1992	1992	1991	1991	1995

SUMMARY STATISTICS	FOR 1999 CALENDAR YEAR		FOR 2000 WATER YEAR		WATER YEARS 1990 - 2000
ANNUAL TOTAL	19392		15472
ANNUAL MEAN	53.1		42.3		49.7
HIGHEST ANNUAL MEAN					64.1	1993
LOWEST ANNUAL MEAN					38.5	1994
HIGHEST DAILY MEAN	451	Apr 23	478	Apr 21	853	Jul 18 1996
LOWEST DAILY MEAN	17	Sep 11,25	18	Nov 10,11,29	11	A
ANNUAL SEVEN-DAY MINIMUM	18	Sep 5	19	Nov 9	12	Aug 14 1992
INSTANTANEOUS PEAK FLOW			535	Apr 21	936	Jul 18 1996
INSTANTANEOUS PEAK STAGE			14.11	Apr 21	16.13 B	Jul 18 1996
INSTANTANEOUS LOW FLOW			12	Nov 28	3.6	Dec 19 1989
ANNUAL RUNOFF (CFSM)	2.00		1.59		1.87
ANNUAL RUNOFF (INCHES)	27.12		21.64		25.37
10 PERCENT EXCEEDS	110		77		93
50 PERCENT EXCEEDS	32		28		32
90 PERCENT EXCEEDS	20		20		19

A - Aug. 19, Oct. 7, 1992.
B - From floodmark.

Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data

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	41	21	20	20	23	41	23	35	78	32	57	21
2	33	20	20	20	22	34	23	33	80	33	53	20
3	51	20	25	24	23	32	23	31	57	260	36	19
4	62	20	34	29	23	32	22	28	42	150	30	20
5	42	20	163	24	23	32	21	28	56	83	41	20

6	32	20	103	22	23	33	22	26	45	51	62	20
7	29	21	59	20	23	32	30	26	36	41	90	20
8	27	21	41	22	22	30	42	34	32	37	61	20
9	25	19	34	28	25	27	35	176	29	35	43	20
10	29	18	28	38	30	23	31	124	29	134	35	21

11	25	18	26	33	33	23	29	89	77	88	30	69
12	24	19	24	29	31	23	26	162	144	56	26	261
13	23	20	24	27	30	23	20	187	109	44	25	142
14	22	20	23	26	29	23	21	75	155	37	24	103
15	22	20	25	26	29	28	23	55	112	31	24	61

16	25	19	26	25	30	41	38	54	61	29	25	41
17	23	19	23	25	32	33	112	46	46	29	46	33
18	22	19	23	25	33	27	62	62	39	26	37	29
19	21	19	22	24	36	27	106	72	34	25	31	26
20	21	19	22	24	37	46	394	50	46	24	28	35

21	20	22	22	23	41	41	478	43	51	25	26	34
22	20	22	23	24	68	35	247	39	34	23	24	67
23	20	31	21	24	82	32	139	36	33	23	23	88
24	20	25	19	23	115	31	96	32	77	23	22	62
25	20	23	20	22	94	29	68	30	158	22	21	45

26	21	22	20	22	69	26	55	28	85	23	23	34
27	20	20	20	22	53	29	47	32	52	23	22	30
28	21	20	20	21	42	28	41	54	44	22	21	27
29	20	18	21	22	40	25	37	43	45	23	21	25
30	20	20	21	24	---	23	34	38	35	71	19	25

31	21	---	20	24	---	22	---	70	---	76	22	---

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	41	21	20	20	23	41	23	35	78	32	57	21
2	33	20	20	20	22	34	23	33	80	33	53	20
3	51	20	25	24	23	32	23	31	57	260	36	19
4	62	20	34	29	23	32	22	28	42	150	30	20
5	42	20	163	24	23	32	21	28	56	83	41	20

6	32	20	103	22	23	33	22	26	45	51	62	20
7	29	21	59	20	23	32	30	26	36	41	90	20
8	27	21	41	22	22	30	42	34	32	37	61	20
9	25	19	34	28	25	27	35	176	29	35	43	20
10	29	18	28	38	30	23	31	124	29	134	35	21

11	25	18	26	33	33	23	29	89	77	88	30	69
12	24	19	24	29	31	23	26	162	144	56	26	261
13	23	20	24	27	30	23	20	187	109	44	25	142
14	22	20	23	26	29	23	21	75	155	37	24	103
15	22	20	25	26	29	28	23	55	112	31	24	61

16	25	19	26	25	30	41	38	54	61	29	25	41
17	23	19	23	25	32	33	112	46	46	29	46	33
18	22	19	23	25	33	27	62	62	39	26	37	29
19	21	19	22	24	36	27	106	72	34	25	31	26
20	21	19	22	24	37	46	394	50	46	24	28	35

21	20	22	22	23	41	41	478	43	51	25	26	34
22	20	22	23	24	68	35	247	39	34	23	24	67
23	20	31	21	24	82	32	139	36	33	23	23	88
24	20	25	19	23	115	31	96	32	77	23	22	62
25	20	23	20	22	94	29	68	30	158	22	21	45

26	21	22	20	22	69	26	55	28	85	23	23	34
27	20	20	20	22	53	29	47	32	52	23	22	30
28	21	20	20	21	42	28	41	54	44	22	21	27
29	20	18	21	22	40	25	37	43	45	23	21	25
30	20	20	21	24	---	23	34	38	35	71	19	25

31	21	---	20	24	---	22	---	70	---	76	22	---

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	41	21	20	20	23	41	23	35	78	32	57	21
2	33	20	20	20	22	34	23	33	80	33	53	20
3	51	20	25	24	23	32	23	31	57	260	36	19
4	62	20	34	29	23	32	22	28	42	150	30	20
5	42	20	163	24	23	32	21	28	56	83	41	20

6	32	20	103	22	23	33	22	26	45	51	62	20
7	29	21	59	20	23	32	30	26	36	41	90	20
8	27	21	41	22	22	30	42	34	32	37	61	20
9	25	19	34	28	25	27	35	176	29	35	43	20
10	29	18	28	38	30	23	31	124	29	134	35	21

11	25	18	26	33	33	23	29	89	77	88	30	69
12	24	19	24	29	31	23	26	162	144	56	26	261
13	23	20	24	27	30	23	20	187	109	44	25	142
14	22	20	23	26	29	23	21	75	155	37	24	103
15	22	20	25	26	29	28	23	55	112	31	24	61

16	25	19	26	25	30	41	38	54	61	29	25	41
17	23	19	23	25	32	33	112	46	46	29	46	33
18	22	19	23	25	33	27	62	62	39	26	37	29
19	21	19	22	24	36	27	106	72	34	25	31	26
20	21	19	22	24	37	46	394	50	46	24	28	35

21	20	22	22	23	41	41	478	43	51	25	26	34
22	20	22	23	24	68	35	247	39	34	23	24	67
23	20	31	21	24	82	32	139	36	33	23	23	88
24	20	25	19	23	115	31	96	32	77	23	22	62
25	20	23	20	22	94	29	68	30	158	22	21	45

26	21	22	20	22	69	26	55	28	85	23	23	34
27	20	20	20	22	53	29	47	32	52	23	22	30
28	21	20	20	21	42	28	41	54	44	22	21	27
29	20	18	21	22	40	25	37	43	45	23	21	25
30	20	20	21	24	---	23	34	38	35	71	19	25

31	21	---	20	24	---	22	---	70	---	76	22	---