05550500 DATA: Discharge Tables, 1999

Station list Available data
ILLINOIS RIVER BASIN

05550500 POPLAR CREEK AT ELGIN, IL

LOCATION.--Lat 42°01'35", long 88°15'20", in SE1/4NW1/4 sec.19, T.41 N., R.9 E., Cook County, Hydrologic Unit 07120006, on right bank 35 ft upstream from bridge on U.S. Highway B.R. 20 (Villa Street) in Elgin, and at mile 2.3.

DRAINAGE AREA.--35.2 mi².

PERIOD OF RECORD.--August 1951 to current year.

REVISED RECORDS.--WSP 1338: 1952-53. WDR IL-75-1: Drainage area.

GAGE.--Water-stage recorder. Datum of gage is 716.00 ft above sea level.

REMARKS.--Records good except those for estimated daily discharges, which are poor. Gage-height telemeter at station.

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	3.3	23	16	2.8	53	37	16	87	44	21	2.0	2.1
2	3.3	19	16	2.3	66	33	15	59	209	20	1.8	1.7
3	10	16	16	e2.6	71	34	13	44	187	13	1.8	1.8
4	9.5	13	13	e2.7	60	31	15	36	100	10	1.7	1.7
5	22	11	11	e2.8	50	29	15	32	67	8.1	1.5	1.7

6	26	9.5	23	e2.8	53	28	15	35	48	6.5	1.5	1.9
7	24	9.9	74	e2.7	49	27	14	35	33	4.9	1.5	2.3
8	18	9.2	60	e2.6	45	25	19	31	25	4.0	1.6	4.4
9	13	8.6	43	e2.7	42	25	128	27	22	10	1.6	2.4
10	9.1	94	35	e2.8	38	26	125	23	35	17	1.7	1.7

11	6.3	136	29	e2.8	53	29	81	23	28	12	1.4	1.7
12	5.1	94	25	e2.7	81	29	57	51	32	8.7	2.6	2.9
13	4.1	63	22	e2.6	59	30	42	45	153	5.9	2.4	3.1
14	3.2	51	20	e2.5	46	29	32	34	328	4.7	1.8	3.0
15	3.0	43	18	e2.7	41	30	33	27	228	3.9	1.5	2.2

16	2.7	38	16	e2.9	36	42	133	23	112	3.1	1.4	1.9
17	104	31	14	e4.0	33	97	155	33	65	4.1	1.4	1.8
18	376	25	13	e10	30	110	95	40	42	3.4	2.0	1.4
19	411	21	12	22	27	79	70	33	32	3.1	1.9	1.4
20	243	17	11	22	24	58	52	25	25	6.5	1.7	1.7

21	140	15	9.7	25	22	45	69	24	19	6.5	1.4	1.9
22	73	14	7.3	146	20	36	308	82	16	6.6	1.3	1.6
23	47	12	6.3	396	19	30	785	61	15	6.6	2.0	1.8
24	35	9.8	5.3	512	18	25	520	43	14	9.3	2.7	1.5
25	27	8.4	4.6	324	17	20	282	32	11	6.8	7.8	1.6

26	23	7.5	4.3	200	19	17	157	24	11	4.9	15	1.4
27	24	6.5	e3.7	142	40	17	128	18	12	4.0	10	6.7
28	37	5.8	e3.6	133	43	16	274	15	15	3.6	6.0	62
29	31	5.8	3.6	102	---	16	216	13	12	2.9	3.9	102
30	29	10	e3.2	75	---	18	128	11	9.2	2.7	3.0	51

31	27	---	3.2	60	---	17	---	12	---	2.1	2.6	---

TOTAL	1789.6	827.0	541.8	2216.0	1155	1085	3992	1078	1949.2	225.9	90.5	274.3
MEAN	57.7	27.6	17.5	71.5	41.2	35.0	133	34.8	65.0	7.29	2.92	9.14
MAX	411	136	74	512	81	110	785	87	328	21	15	102
MIN	2.7	5.8	3.2	2.3	17	16	13	11	9.2	2.1	1.3	1.4
CFSM	1.64	.78	.50	2.03	1.17	.99	3.78	.99	1.85	.21	.08	.26
IN.	1.89	.87	.57	2.34	1.22	1.15	4.22	1.14	2.06	.24	.10	.29

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1951 - 1999, BY WATER YEAR (WY)
MEAN	13.8	21.5	23.3	22.6	29.4	49.3	53.7	35.3	27.2	15.3	15.5	12.7
MAX	64.6	133	113	85.1	129	235	146	130	102	92.4	103	94.6
(WY)	1973	1986	1983	1993	1997	1979	1983	1974	1996	1993	1990	1972
MIN	.50	.25	.60	.91	.72	4.76	9.51	3.50	.97	1.27	.87	.25
(WY)	1957	1954	1957	1959	1978	1956	1986	1989	1963	1988	1956	1956

SUMMARY STATISTICS	FOR 1998 CALENDAR YEAR		FOR 1999 WATER YEAR		WATER YEARS 1951 - 1999
ANNUAL TOTAL	12546.1		15224.3
ANNUAL MEAN	34.4		41.7		26.6
HIGHEST ANNUAL MEAN					52.6	1993
LOWEST ANNUAL MEAN					4.69	1963
HIGHEST DAILY MEAN	411	Oct 19	785	Apr 23	861	Feb 22 1997
LOWEST DAILY MEAN	1.7	Aug 20,21,22,23	1.3	Aug 22	.10	Sep 16 1956
ANNUAL SEVEN-DAY MINIMUM	1.8	Aug 17	1.5	Aug 5	.10	Sep 9 1958
INSTANTANEOUS PEAK FLOW			882	Apr 23	1180	Feb 21 1997
INSTANTANEOUS PEAK STAGE			6.13	Apr 23	6.78	Feb 21 1997
INSTANTANEOUS LOW FLOW			.72	Sep 19,23	.00	A
ANNUAL RUNOFF (CFSM)	.98		1.18		.76
ANNUAL RUNOFF (INCHES)	13.26		16.09		10.27
10 PERCENT EXCEEDS	86		98		65
50 PERCENT EXCEEDS	19		18		10
90 PERCENT EXCEEDS	2.7		2.0		1.2

A - July 10, 1957, Sept. 14, 1958, July 18, 1989, Oct. 6, 1997.