05536255 DATA: Discharge Tables, 2001

Station list Available data
ILLINOIS RIVER BASIN

05536255 BUTTERFIELD CREEK AT FLOSSMOOR, IL

LOCATION.-- Lat 41°32'24", long 87°38'57", in NE1/4NW1/4 sec.8, T.35 N., R.14 E., Cook County, Hydrologic Unit 07120003, on left bank at downstream side of Riegel Road Bridge at Homewood city limits, 0.1 mi north of Holbrook Road, 0.8 mi east of Flossmoor, and at mile 1.2.

DRAINAGE AREA.-- 23.5 mi².

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

DISCHARGE: May 1948 to current year. Prior to October 1974, records published with those for streams in the St. Lawrence River Basin (WSP 1307, 1727, 1911, 2111, WDR IL 1971-74).

STAGE: Water years 1994-2001.

REVISED RECORDS.-- WSP 1437: 1948(M), 1953, 1955. WDR IL-75-1: Drainage area. WDR IL-81-2: 1955(M), 1957(M), 1968(M), 1974(M).

GAGE.-- Water-stage recorder and phone telemeter. Datum of gage is 616.80 ft above sea level. Prior to Sept. 9, 1948, nonrecording gage at same site and datum.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 2,220 ft³/s, July 18, 1996, gage height, 12.59 ft; no flow at times in several years.

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	.87	2.4	7.6	e2.5	e50	25	5.0	6.1	16	1.1	1.0	5.5
2	.92	1.1	5.9	e2.6	e29	21	4.4	5.4	10	.99	150	2.7
3	1.2	1.0	4.7	e2.6	e18	17	3.9	4.7	7.3	16	90	1.8
4	63	1.0	4.0	e2.7	e15	13	3.4	4.3	5.3	9.4	33	1.5
5	22	.92	3.4	e2.7	e12	11	5.5	3.8	84	2.6	16	1.0

6	13	1.8	3.1	e2.7	e13	8.4	23	3.5	72	1.5	8.1	1.5
7	5.7	20	3.0	e2.7	e17	7.3	15	3.1	53	1.2	4.6	4.8
8	21	6.6	3.2	e2.7	70	6.6	8.8	2.9	30	1.3	3.0	1.3
9	17	86	2.8	e2.7	460	5.8	7.6	2.4	15	.98	2.4	4.5
10	8.0	69	2.6	e2.6	216	5.3	5.8	2.2	8.1	.74	6.2	4.1

11	4.8	28	e3.0	e2.6	86	6.0	7.2	5.8	5.3	.59	1.6	1.9
12	2.9	15	e4.3	e2.5	51	8.5	18	2.9	23	.50	1.3	1.4
13	2.4	32	e3.8	e2.6	36	9.6	11	2.2	14	.48	1.2	1.1
14	2.0	22	e3.5	e7.5	44	7.8	6.0	2.1	7.5	.45	.64	1.0
15	1.8	14	e3.2	e44	48	18	44	2.4	13	.42	.55	1.1

16	1.9	9.7	e3.1	e29	33	40	33	2.8	8.0	.44	8.6	.82
17	1.8	7.0	e2.9	e21	25	49	18	1.9	5.1	.58	2.6	.81
18	e1.8	5.1	e2.8	e16	e18	48	12	1.7	3.7	.51	20	1.8
19	1.7	4.5	e2.7	e13	e14	39	8.5	1.5	2.8	.50	17	49
20	1.9	3.8	e2.6	e9.8	11	27	18	1.3	2.6	.49	5.0	16

21	2.1	3.1	e2.5	e8.3	e10	21	45	5.8	15	78	2.3	5.9
22	2.2	2.8	e2.4	e7.2	e9.2	16	54	2.6	5.6	93	1.6	3.5
23	2.2	2.5	e2.4	e6.4	8.5	14	52	2.1	3.5	85	3.8	19
24	12	2.5	e2.3	e5.9	142	12	44	4.2	2.4	36	2.6	18
25	3.7	3.2	e2.3	e5.3	292	8.9	26	5.0	2.0	22	40	8.6

26	2.8	14	e2.2	e4.9	92	7.0	20	28	1.7	12	45	4.3
27	2.3	9.4	e2.2	e4.7	53	6.1	14	84	1.5	5.5	17	2.5
28	1.5	6.2	e2.2	e5.0	34	5.9	11	40	1.4	3.0	7.1	2.1
29	1.3	8.9	e2.3	e20	---	5.3	8.5	19	1.3	1.9	3.9	1.7
30	1.1	7.4	e2.3	e100	---	5.2	6.8	10	1.2	1.4	3.5	1.4

31	1.2	---	e2.4	e66	---	5.2	---	9.3	---	1.2	15	---

TOTAL	208.09	390.92	97.7	408.2	1906.7	479.9	539.4	273.0	421.3	379.77	514.59	170.63
MEAN	6.71	13.0	3.15	13.2	68.1	15.5	18.0	8.81	14.0	12.3	16.6	5.69
MAX	63	86	7.6	100	460	49	54	84	84	93	150	49
MIN	.87	.92	2.2	2.5	8.5	5.2	3.4	1.3	1.2	.42	.55	.81
CFSM	.29	.55	.13	.56	2.90	.66	.77	.37	.60	.52	.71	.24
IN.	.33	.62	.15	.65	3.02	.76	.85	.43	.67	.60	.81	.27

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1948 - 2001, BY WATER YEAR (WY)
MEAN	7.48	13.7	16.7	17.8	22.3	33.2	33.4	25.4	21.7	12.3	8.27	8.35
MAX	76.1	96.7	105	73.7	88.4	120	97.7	95.6	119	85.9	60.0	77.1
(WY)	1955	1991	1983	1969	1997	1979	1970	1996	1993	1957	1968	1961
MIN	.27	.14	.073	.032	.38	2.85	3.57	2.49	1.14	.55	.32	.25
(WY)	1953	2000	1977	1977	1978	2000	1986	1992	1988	1988	1948	1953

SUMMARY STATISTICS	FOR 2000 CALENDAR YEAR		FOR 2001 WATER YEAR		WATER YEARS 1948 - 2001
ANNUAL TOTAL	4648.94		5790.20
ANNUAL MEAN	12.7		15.9		18.4
HIGHEST ANNUAL MEAN					42.3	1993
LOWEST ANNUAL MEAN					4.82	1963
HIGHEST DAILY MEAN	313	Jun 21	460	Feb 9	1500	Jul 13 1957
LOWEST DAILY MEAN	.19	Sep 2-3, 7-8	.42	Jul 15	.00	A
ANNUAL SEVEN-DAY MINIMUM	.25	Sep 2	.48	Jul 12	.00	Aug 8 1975
MAXIMUM PEAK FLOW			544	Feb 9	2220	Jul 18 1996
MAXIMUM PEAK STAGE			9.00	Feb 9	12.59	Jul 18 1996
INSTANTANEOUS LOW FLOW			.33	Jul 21
ANNUAL RUNOFF (CFSM)	.54		.68		.78
ANNUAL RUNOFF (INCHES)	7.36		9.17		10.65
10 PERCENT EXCEEDS	31		42		42
50 PERCENT EXCEEDS	3.0		5.2		4.5
90 PERCENT EXCEEDS	.64		1.3		.45

A - At times in most years.