05550500 DATA: Discharge Tables, 2001

Station list Available data
ILLINOIS RIVER BASIN

05550500 POPLAR CREEK AT ELGIN, IL

LOCATION.-- Lat 42°01'34", 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.--
SURFACE-WATER DISCHARGE AND STAGE

DISCHARGE: August 1951 to current year.

STAGE: Water years 1994-2001.

SURFACE-WATER QUALITY

CHEMICAL: Water years 1977-91.

MISCELLANEOUS: Water year 2000; contaminants in streambed sediments, water year 2000.

BIOLOGICAL

BENTHIC MACROINVERTEBRATES: Water year 2000.

FISH: Water year 2001.

HABITAT: Water year 2000.

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

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

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 1,180 ft³/s, Feb. 21, 1997, gage height, 6.78 ft; no flow, July 10, 1957, Sept. 14, 1958, July 18, 1989, Oct. 6, 1997.

REMARKS FOR CURRENT YEAR.-- Records good except those for estimated daily discharges, which are poor.

DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2000 TO SEPTEMBER 2001 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	9.3	1.5	22	e8.0	e54	47	21	17	28	2.0	3.2	16
2	6.2	2.1	21	e8.0	e40	39	20	15	48	1.7	3.4	9.6
3	5.8	1.8	20	e8.0	e42	34	20	13	37	1.6	3.1	6.6
4	38	2.1	19	e8.5	e35	32	19	12	25	1.5	4.1	5.0
5	39	2.6	18	e9.0	33	28	19	11	35	1.2	3.8	4.6

6	29	9.2	16	e10	29	26	30	11	45	.99	3.4	8.8
7	22	88	15	e9.0	27	24	39	25	34	2.1	2.6	51
8	18	78	14	e8.8	41	22	36	32	26	2.5	2.2	28
9	15	152	13	e8.5	413	20	33	25	20	2.1	3.7	29
10	12	259	13	e8.0	465	19	33	24	15	1.7	20	38

11	9.1	180	e11	e8.4	246	21	35	97	13	1.3	17	27
12	8.9	105	e9.4	e8.5	146	25	56	99	17	1.1	7.1	17
13	7.4	72	e10	e9.0	93	31	48	48	16	.99	5.2	9.2
14	6.5	56	e11	e9.5	79	30	39	30	14	.93	4.7	6.3
15	5.3	45	e11	e13	79	40	41	24	14	1.1	3.7	5.2

16	4.9	38	e11	e17	66	74	41	19	12	1.3	19	5.5
17	5.0	34	e12	e18	55	73	38	16	11	1.4	22	6.6
18	4.5	32	e11	e18	e47	70	35	14	14	2.3	11	14
19	5.6	28	e10	e18	e39	62	31	11	13	1.5	12	271
20	3.9	25	e9.5	e16	e36	53	30	9.0	11	1.2	13	472

21	3.1	22	e9.0	e14	e33	47	34	10	9.4	1.5	6.0	420
22	2.6	20	e9.5	e13	e30	43	35	12	8.5	5.9	29	332
23	2.5	21	e9.0	e12	28	39	37	12	7.0	7.7	105	204
24	2.7	18	e8.5	e12	55	36	38	11	6.0	26	77	148
25	2.6	17	e8.0	e11	182	32	32	10	4.7	34	46	92

26	2.6	21	e8.0	e10	138	28	29	14	3.8	29	64	61
27	2.6	24	e8.0	e9.5	84	26	26	28	3.3	19	45	40
28	2.5	24	e8.0	e9.0	59	27	23	34	2.9	11	34	28
29	3.7	25	e7.4	22	---	26	20	23	2.6	7.8	24	22
30	2.3	24	e8.0	e58	---	23	18	16	2.3	6.0	16	18

31	1.6	---	e8.0	e66	---	21	---	15	---	4.2	31	---

TOTAL	284.2	1427.3	368.3	457.7	2674	1118	956	737.0	498.5	182.61	641.2	2395.4
MEAN	9.17	47.6	11.9	14.8	95.5	36.1	31.9	23.8	16.6	5.89	20.7	79.8
MAX	39	259	22	66	465	74	56	99	48	34	105	472
MIN	1.6	1.5	7.4	8.0	27	19	18	9.0	2.3	.93	2.2	4.6
CFSM	.26	1.35	.34	.42	2.71	1.02	.91	.68	.47	.17	.59	2.27
IN.	.30	1.51	.39	.48	2.83	1.18	1.01	.78	.53	.19	.68	2.53

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1951 - 2001, BY WATER YEAR (WY)
MEAN	13.6	21.6	22.9	22.1	30.6	48.2	53.6	35.0	27.5	15.5	15.6	14.5
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 2000 CALENDAR YEAR		FOR 2001 WATER YEAR		WATER YEARS 1951 - 2001
ANNUAL TOTAL	10673.35		11740.21
ANNUAL MEAN	29.2		32.2		26.7
HIGHEST ANNUAL MEAN					52.6	1993
LOWEST ANNUAL MEAN					4.69	1963
HIGHEST DAILY MEAN	520	Apr 21	472	Sep 20	861	Feb 22 1997
LOWEST DAILY MEAN	.97	Sep 6	.93	Jul 14	.10	Sep 16 1956
ANNUAL SEVEN-DAY MINIMUM	1.2	Sep 1	1.2	Jul 11	.10	Sep 9 1958
MAXIMUM PEAK FLOW			600	Feb 9	1180	Feb 21 1997
MAXIMUM PEAK STAGE			4.59	Feb 9	6.78	Feb 21 1997
INSTANTANEOUS LOW FLOW					.00	A
ANNUAL RUNOFF (CFSM)	.83		.91		.76
ANNUAL RUNOFF (INCHES)	11.28		12.41		10.30
10 PERCENT EXCEEDS	73		60		65
50 PERCENT EXCEEDS	13		18		11
90 PERCENT EXCEEDS	2.6		2.6		1.2

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