05531300 DATA: Discharge Tables, 1999

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 652.65 ft above sea level. Water years 1997 and 1998, datum incorrectly published as 655.00 ft above sea level. Prior to October 1, 1996, at site 990 ft upstream at datum 2.35 ft higher. Prior to June 1, 1989, crest-stage gage at datum 7.84 ft higher.

REMARKS.--Records good except those for estimated daily discharge, which are poor. Occasional regulation by sewage treatment plants upstream from station. Since May 28, 1996, some flow temporarily diverted for flood control to Elmhurst Quarry Flood Control Reservoir about 1.0 miles upstream from gage. 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, datum 660.49 ft above sea level.

DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	72	115	90	48	254	164	78	341	148	167	46	64
2	75	98	79	e46	308	140	78	219	476	161	44	58
3	105	84	67	e45	352	143	68	167	532	109	42	45
4	87	85	62	e46	319	123	69	144	337	82	40	40
5	192	75	57	e47	278	109	63	128	196	69	40	39

6	209	67	145	e47	278	122	69	164	163	65	39	40
7	164	62	325	e45	256	123	65	176	142	52	43	41
8	129	61	268	e47	219	116	100	160	119	48	44	41
9	88	63	181	e47	201	115	515	133	98	130	43	41
10	74	430	130	e46	182	128	585	123	129	121	43	39

11	63	485	107	e45	207	134	406	154	230	86	42	35
12	59	359	90	e44	284	137	243	562	264	68	60	45
13	57	238	81	e43	259	138	164	403	645	57	59	58
14	58	157	76	e43	203	141	131	211	825	51	54	48
15	52	128	73	e45	159	152	168	130	812	57	48	44

16	54	110	69	54	121	197	507	98	439	53	45	43
17	317	93	65	86	112	324	584	275	207	51	42	42
18	822	80	62	155	99	362	414	308	140	48	45	39
19	1020	75	60	136	90	269	263	215	97	51	102	41
20	767	69	58	110	85	192	203	138	81	54	78	45

21	425	61	59	133	78	150	205	182	72	85	59	43
22	223	57	58	680	73	126	501	469	99	261	50	42
23	149	60	55	960	66	108	1130	387	76	133	64	42
24	120	56	55	1030	70	97	1250	270	75	93	98	40
25	99	57	50	1030	69	88	1010	174	55	74	131	39

26	90	53	48	699	77	82	613	130	37	66	185	39
27	117	50	50	498	178	76	482	105	78	56	126	59
28	173	49	52	471	194	69	704	89	89	52	81	350
29	146	50	52	420	---	69	758	79	76	53	65	536
30	160	87	51	328	---	65	557	67	56	47	55	409

31	143	---	51	263	---	69	---	73	---	44	60	---

TOTAL	6309	3514	2726	7737	5071	4328	11983	6274	6793	2544	1973	2487
MEAN	204	117	87.9	250	181	140	399	202	226	82.1	63.6	82.9
MAX	1020	485	325	1030	352	362	1250	562	825	261	185	536
MIN	52	49	48	43	66	65	63	67	37	44	39	35
CFSM	2.22	1.28	.96	2.73	1.98	1.53	4.37	2.21	2.48	.90	.70	.91
IN.	2.57	1.43	1.11	3.15	2.06	1.76	4.87	2.55	2.76	1.03	.80	1.01

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1989 - 1999, BY WATER YEAR (WY)
MEAN	104	152	109	148	162	188	232	197	156	99.6	140	85.5
MAX	204	251	186	282	350	263	430	431	360	229	338	157
(WY)	1999	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 1998 CALENDAR YEAR		FOR 1999 WATER YEAR		WATER YEARS 1989 - 1999
ANNUAL TOTAL	58079		61739
ANNUAL MEAN	159		169		147
HIGHEST ANNUAL MEAN					196	1993
LOWEST ANNUAL MEAN					110	1994
HIGHEST DAILY MEAN	1020	Oct 19	1250	Apr 24	1450	Aug 21 1990
LOWEST DAILY MEAN	38	Aug 2	35	Sep 11	29	Jul 1 1989
ANNUAL SEVEN-DAY MINIMUM	41	Jul 27	39	Sep 5	32	Sep 16 1994
INSTANTANEOUS PEAK FLOW			1300	Apr 24	1580	Aug 6 1989
INSTANTANEOUS PEAK STAGE			11.41	Apr 24	13.56	A
INSTANTANEOUS LOW FLOW			29	Jul 7	18	Jul 1 1989
ANNUAL RUNOFF (CFSM)	1.74		1.85		1.60
ANNUAL RUNOFF (INCHES)	23.62		25.11		21.77
10 PERCENT EXCEEDS	350		416		306
50 PERCENT EXCEEDS	102		90		88
90 PERCENT EXCEEDS	51		45		44

A - Aug. 6, 1989, datum 655.00 ft.