05531300 DATA: Discharge Tables, 1998

Station list Available data
ILLINOIS RIVER BASIN

05531300 SALT CREEK AT ELMHURST, IL

LOCATION.--Lat 41°53'12", long 87°57'34", in SW1/4NW1/4 sec.11, T.39 N., R.11 E., Du Page County, Hydrologic Unit 07120004, on left bank at upstream side of the Illinois Prairie Path Bikeway bridge in Elmhurst, and at mile 20.1.

DRAINAGE AREA.--91.5 mi².

PERIOD OF RECORD.--Annual maximum, water years 1961-80. June 1989 to current year.

REVISED RECORDS.--WDR IL-77-1: 1961-76(M).

GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 655.00 ft above sea level. Prior to October 1, 1996, at site 990 ft upstream at same datum. Prior to June 1, 1989, crest-stage gage at datum 5.49 ft higher.

REMARKS.--Records good except those for estimated daily discharge, which are poor. Gage-height telemeter and recording rain gage at station.

EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 2,230 ft³/s, Aug. 27, 1972, gage height, 12.76 ft, present datum; maximum gage height, 13.37 ft, Aug. 21, 1990.

DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	35	61	113	65	175	102	442	123	63	101	40	75
2	35	59	89	77	327	94	410	109	58	77	38	65
3	37	56	88	144	319	96	280	98	53	99	40	61
4	40	56	93	348	248	99	206	102	66	224	222	56
5	38	48	80	496	184	97	148	95	63	139	383	49

6	40	108	68	533	149	91	120	100	52	96	480	47
7	38	87	66	536	128	88	139	570	51	110	262	350
8	35	68	59	525	114	223	404	902	54	115	235	213
9	49	68	57	484	110	500	609	912	112	92	157	133
10	42	61	92	363	97	469	549	606	102	78	114	92

11	34	51	131	242	221	317	352	351	240	61	95	69
12	38	59	133	184	381	216	232	240	263	58	88	65
13	89	50	103	152	327	163	186	194	207	52	78	55
14	88	54	86	121	228	143	194	163	169	49	62	75
15	65	75	83	e120	169	144	169	131	120	47	54	159

16	54	81	75	114	162	192	344	119	108	46	49	124
17	52	79	75	103	293	267	347	106	97	43	50	97
18	41	74	73	95	361	603	236	97	127	44	49	74
19	44	65	70	83	305	702	170	90	248	80	45	63
20	43	61	68	82	224	584	183	77	178	61	46	59

21	39	66	65	74	177	351	292	71	119	58	46	64
22	50	63	e66	77	146	310	331	67	94	54	45	57
23	55	67	67	81	126	261	295	60	76	52	95	51
24	59	61	71	79	124	193	221	97	65	47	124	50
25	50	58	112	77	112	159	153	74	57	43	500	49

26	103	57	114	80	102	141	163	70	119	44	387	49
27	328	61	102	81	108	130	162	75	141	40	209	48
28	240	88	84	88	104	137	139	95	221	43	182	54
29	134	100	83	126	---	127	156	72	228	41	164	48
30	90	112	78	145	---	120	138	68	156	42	118	66

31	71	---	71	142	---	248	---	66	---	41	97	---

TOTAL	2156	2054	2615	5917	5521	7367	7770	6000	3707	2177	4554	2517
MEAN	69.5	68.5	84.4	191	197	238	259	194	124	70.2	147	83.9
MAX	328	112	133	536	381	702	609	912	263	224	500	350
MIN	34	48	57	65	97	88	120	60	51	40	38	47
CFSM	.76	.75	.92	2.09	2.16	2.60	2.83	2.12	1.35	.77	1.61	.92
IN.	.88	.84	1.06	2.41	2.25	3.00	3.16	2.44	1.51	.89	1.85	1.02

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1989 - 1998, BY WATER YEAR (WY)
MEAN	93.1	156	111	136	159	193	214	196	149	101	147	85.7
MAX	193	251	186	282	350	263	430	431	360	229	338	157
(WY)	1992	1991	1992	1993	1997	1993	1993	1996	1996	1993	1990	1989
MIN	56.8	67.7	46.1	56.2	76.8	82.7	99.4	58.4	53.1	38.1	50.7	48.8
(WY)	1993	1994	1990	1994	1996	1996	1994	1992	1992	1991	1991	1994

SUMMARY STATISTICS	FOR 1997 CALENDAR YEAR		FOR 1998 WATER YEAR		WATER YEARS 1989 - 1998
ANNUAL TOTAL	46987		52355
ANNUAL MEAN	129		143		144
HIGHEST ANNUAL MEAN					196	1993
LOWEST ANNUAL MEAN					110	1994
HIGHEST DAILY MEAN	1410	Feb 22	912	May 9	1450	Aug 21 1990
LOWEST DAILY MEAN	34	A	34	Oct 11	29	Jul 1 1989
ANNUAL SEVEN-DAY MINIMUM	36	Sep 7	38	Oct 1	32	Sep 16 1994
INSTANTANEOUS PEAK FLOW			1050	Sep 7	1580	Aug 6 1989
INSTANTANEOUS PEAK STAGE			10.47	Sep 7	13.56	Aug 6 1989
INSTANTANEOUS LOW FLOW			29	Oct 2,8,11	18	Jul 1 1989
ANNUAL RUNOFF (CFSM)	1.41		1.57		1.57
ANNUAL RUNOFF (INCHES)	19.11		21.29		21.40
10 PERCENT EXCEEDS	239		327		299
50 PERCENT EXCEEDS	84		95		88
90 PERCENT EXCEEDS	44		48		44

A - Sept. 7, 12, 13, Oct. 11.