05540250 DATA: Discharge Tables, 2000

ILLINOIS RIVER BASIN

05540250 EAST BRANCH DU PAGE RIVER AT BOLINGBROOK, IL

LOCATION.-- Lat 41°43'05", long 88°04'14", in NE1/4SE1/4 sec.3, T.37 N., R.10 E., Will County, Hydrologic Unit 07120004, on downstream side of bridge on Royce Road, 0.5 mi north of Bolingbrook, 4.8 mi northwest of Lemont, and at mile 6.0.

DRAINAGE AREA.-- 75.8 mi².

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

DISCHARGE: October 1988 to current year.

STAGE: Water years 1994-2000.

PARTIAL RECORD: Annual maximum gage height, water years 1962-70 (published as "at Barbers Corners").

PRECIPITATION: May 1989 to September 1995.

GAGE.-- Water-stage recorder, phone telemeter, rain gage, and crest-stage gage. Datum of gage is 625.28 ft above sea level. Prior to Oct. 1, 1988, at datum 17.07 ft higher.

REMARKS.-- Diurnal fluctuation at low flow caused by sewage treatment plants upstream from station. For precipitation records, snowfall-affected data can result during cold weather when snow fills the rain-gage funnel and then melts as temperatures rise. Snowfall-affected data are subject to appreciable errors.

EXTREMES FOR PERIOD OF RECORD.--
PRECIPITATION: Maximum recorded, 3.80 in., May 9, 1990 but may have been greater during periods of missing record.

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	94	43	38	40	46	77	33	93	285	113	142	55
2	73	41	39	42	45	68	35	87	201	101	129	54
3	90	39	46	47	46	62	39	76	144	396	93	52
4	173	40	57	63	47	58	36	69	116	325	73	53
5	99	42	317	52	45	57	34	64	145	217	76	54

6	74	40	259	48	45	57	33	58	119	145	123	53
7	61	43	155	46	46	55	41	55	90	116	207	54
8	60	41	97	44	44	52	80	64	79	96	133	52
9	62	38	71	56	47	50	66	331	66	86	97	49
10	61	36	64	80	57	45	57	339	55	299	79	52

11	53	35	54	73	73	39	58	239	121	259	71	99
12	49	36	52	56	64	33	51	243	439	144	65	398
13	50	40	48	50	61	37	43	393	434	107	61	275
14	45	40	46	52	59	32	38	240	419	88	57	209
15	46	37	50	50	55	38	37	155	459	79	59	148

16	54	35	52	50	56	81	45	140	286	73	59	96
17	52	34	48	49	57	55	238	124	205	72	107	78
18	48	35	48	48	62	45	159	138	158	69	89	70
19	43	34	47	47	67	44	184	251	137	67	68	63
20	44	37	49	46	70	92	527	159	152	65	60	71

21	45	38	43	44	76	80	901	110	178	64	60	85
22	48	41	46	45	143	61	614	120	137	62	59	107
23	46	60	43	47	186	53	360	100	122	59	61	201
24	42	69	42	47	224	52	269	80	176	59	61	152
25	43	50	38	46	219	51	191	71	402	58	58	112

26	42	42	39	44	156	42	149	67	288	56	54	86
27	43	44	40	43	125	52	127	82	190	57	51	73
28	42	42	40	43	96	46	106	240	146	57	55	67
29	40	39	42	44	80	42	98	149	144	56	56	62
30	42	37	42	46	---	36	87	101	128	129	53	60

31	43	---	42	48	---	35	---	174	---	143	50	---

TOTAL	1807	1228	2094	1536	2397	1627	4736	4612	6021	3717	2466	3040
MEAN	58.3	40.9	67.5	49.5	82.7	52.5	158	149	201	120	79.5	101
MAX	173	69	317	80	224	92	901	393	459	396	207	398
MIN	40	34	38	40	44	32	33	55	55	56	50	49
CFSM	.77	.54	.89	.65	1.09	.69	2.08	1.96	2.65	1.58	1.05	1.34
IN.	.89	.60	1.03	.75	1.18	.80	2.32	2.26	2.95	1.82	1.21	1.49

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1989 - 2000, BY WATER YEAR (WY)
MEAN	76.7	111	85.6	112	113	133	164	149	131	95.1	87.1	75.2
MAX	157	179	135	263	306	208	358	286	239	299	155	114
(WY)	1999	1991	1995	1993	1997	1993	1993	1990	1993	1996	1998	1989
MIN	38.4	40.9	23.5	49.5	42.2	52.5	50.5	43.5	43.6	41.7	38.0	41.1
(WY)	1990	2000	1990	2000	1989	2000	1989	1992	1992	1991	1991	1991

SUMMARY STATISTICS	FOR 1999 CALENDAR YEAR		FOR 2000 WATER YEAR		WATER YEARS 1989 - 2000
ANNUAL TOTAL	45251		35281
ANNUAL MEAN	124		96.4		111
HIGHEST ANNUAL MEAN					152	1993
LOWEST ANNUAL MEAN					76.9	1989
HIGHEST DAILY MEAN	1080	Jan 24	901	Apr 21	2700	Jul 18 1996
LOWEST DAILY MEAN	34	Nov 17,19	32	Mar 14	12	Aug 5 1993
ANNUAL SEVEN-DAY MINIMUM	36	Nov 15	35	Mar 31	18	Aug 16 1992
INSTANTANEOUS PEAK FLOW			938	Apr 21	3980	Jul 18 1996
INSTANTANEOUS PEAK STAGE			20.16	Apr 21	23.75	Jul 18 1996
INSTANTANEOUS LOW FLOW			22	A	2.4	Aug 5 1993
ANNUAL RUNOFF (CFSM)	1.64		1.27		1.46
ANNUAL RUNOFF (INCHES)	22.21		17.31		19.89
10 PERCENT EXCEEDS	261		202		216
50 PERCENT EXCEEDS	77		59		72
90 PERCENT EXCEEDS	40		40		37

A - Oct. 19, Nov. 19, Mar. 12.

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	94	43	38	40	46	77	33	93	285	113	142	55
2	73	41	39	42	45	68	35	87	201	101	129	54
3	90	39	46	47	46	62	39	76	144	396	93	52
4	173	40	57	63	47	58	36	69	116	325	73	53
5	99	42	317	52	45	57	34	64	145	217	76	54

6	74	40	259	48	45	57	33	58	119	145	123	53
7	61	43	155	46	46	55	41	55	90	116	207	54
8	60	41	97	44	44	52	80	64	79	96	133	52
9	62	38	71	56	47	50	66	331	66	86	97	49
10	61	36	64	80	57	45	57	339	55	299	79	52

11	53	35	54	73	73	39	58	239	121	259	71	99
12	49	36	52	56	64	33	51	243	439	144	65	398
13	50	40	48	50	61	37	43	393	434	107	61	275
14	45	40	46	52	59	32	38	240	419	88	57	209
15	46	37	50	50	55	38	37	155	459	79	59	148

16	54	35	52	50	56	81	45	140	286	73	59	96
17	52	34	48	49	57	55	238	124	205	72	107	78
18	48	35	48	48	62	45	159	138	158	69	89	70
19	43	34	47	47	67	44	184	251	137	67	68	63
20	44	37	49	46	70	92	527	159	152	65	60	71

21	45	38	43	44	76	80	901	110	178	64	60	85
22	48	41	46	45	143	61	614	120	137	62	59	107
23	46	60	43	47	186	53	360	100	122	59	61	201
24	42	69	42	47	224	52	269	80	176	59	61	152
25	43	50	38	46	219	51	191	71	402	58	58	112

26	42	42	39	44	156	42	149	67	288	56	54	86
27	43	44	40	43	125	52	127	82	190	57	51	73
28	42	42	40	43	96	46	106	240	146	57	55	67
29	40	39	42	44	80	42	98	149	144	56	56	62
30	42	37	42	46	---	36	87	101	128	129	53	60

31	43	---	42	48	---	35	---	174	---	143	50	---

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	94	43	38	40	46	77	33	93	285	113	142	55
2	73	41	39	42	45	68	35	87	201	101	129	54
3	90	39	46	47	46	62	39	76	144	396	93	52
4	173	40	57	63	47	58	36	69	116	325	73	53
5	99	42	317	52	45	57	34	64	145	217	76	54

6	74	40	259	48	45	57	33	58	119	145	123	53
7	61	43	155	46	46	55	41	55	90	116	207	54
8	60	41	97	44	44	52	80	64	79	96	133	52
9	62	38	71	56	47	50	66	331	66	86	97	49
10	61	36	64	80	57	45	57	339	55	299	79	52

11	53	35	54	73	73	39	58	239	121	259	71	99
12	49	36	52	56	64	33	51	243	439	144	65	398
13	50	40	48	50	61	37	43	393	434	107	61	275
14	45	40	46	52	59	32	38	240	419	88	57	209
15	46	37	50	50	55	38	37	155	459	79	59	148

16	54	35	52	50	56	81	45	140	286	73	59	96
17	52	34	48	49	57	55	238	124	205	72	107	78
18	48	35	48	48	62	45	159	138	158	69	89	70
19	43	34	47	47	67	44	184	251	137	67	68	63
20	44	37	49	46	70	92	527	159	152	65	60	71

21	45	38	43	44	76	80	901	110	178	64	60	85
22	48	41	46	45	143	61	614	120	137	62	59	107
23	46	60	43	47	186	53	360	100	122	59	61	201
24	42	69	42	47	224	52	269	80	176	59	61	152
25	43	50	38	46	219	51	191	71	402	58	58	112

26	42	42	39	44	156	42	149	67	288	56	54	86
27	43	44	40	43	125	52	127	82	190	57	51	73
28	42	42	40	43	96	46	106	240	146	57	55	67
29	40	39	42	44	80	42	98	149	144	56	56	62
30	42	37	42	46	---	36	87	101	128	129	53	60

31	43	---	42	48	---	35	---	174	---	143	50	---

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	94	43	38	40	46	77	33	93	285	113	142	55
2	73	41	39	42	45	68	35	87	201	101	129	54
3	90	39	46	47	46	62	39	76	144	396	93	52
4	173	40	57	63	47	58	36	69	116	325	73	53
5	99	42	317	52	45	57	34	64	145	217	76	54

6	74	40	259	48	45	57	33	58	119	145	123	53
7	61	43	155	46	46	55	41	55	90	116	207	54
8	60	41	97	44	44	52	80	64	79	96	133	52
9	62	38	71	56	47	50	66	331	66	86	97	49
10	61	36	64	80	57	45	57	339	55	299	79	52

11	53	35	54	73	73	39	58	239	121	259	71	99
12	49	36	52	56	64	33	51	243	439	144	65	398
13	50	40	48	50	61	37	43	393	434	107	61	275
14	45	40	46	52	59	32	38	240	419	88	57	209
15	46	37	50	50	55	38	37	155	459	79	59	148

16	54	35	52	50	56	81	45	140	286	73	59	96
17	52	34	48	49	57	55	238	124	205	72	107	78
18	48	35	48	48	62	45	159	138	158	69	89	70
19	43	34	47	47	67	44	184	251	137	67	68	63
20	44	37	49	46	70	92	527	159	152	65	60	71

21	45	38	43	44	76	80	901	110	178	64	60	85
22	48	41	46	45	143	61	614	120	137	62	59	107
23	46	60	43	47	186	53	360	100	122	59	61	201
24	42	69	42	47	224	52	269	80	176	59	61	152
25	43	50	38	46	219	51	191	71	402	58	58	112

26	42	42	39	44	156	42	149	67	288	56	54	86
27	43	44	40	43	125	52	127	82	190	57	51	73
28	42	42	40	43	96	46	106	240	146	57	55	67
29	40	39	42	44	80	42	98	149	144	56	56	62
30	42	37	42	46	---	36	87	101	128	129	53	60

31	43	---	42	48	---	35	---	174	---	143	50	---