05547755 DATA: Discharge Tables, 2001

Station list Available data
ILLINOIS RIVER BASIN

05547755 SQUAW CREEK AT ROUND LAKE, IL

LOCATION.-- Lat 42°21'00", long 88°05'18", in SW1/4NE1/4 sec.29, T.45 N., R.10 E., Lake County, Hydrologic Unit 07120006, on left bank at upstream side of bridge on MacGillis Road at Round Lake, and at mile 7.5.

DRAINAGE AREA.-- 17.2 mi².

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

DISCHARGE: October 1989 to current year.

STAGE: Water years 1994-2001.

GAGE.-- Water-stage recorder, phone telemeter, and crest-stage gage. Datum of gage is 764.94 ft above sea level.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 312 ft³/s, July 18, 1993, from rating curve extended above 120 ft³/s on basis of slope-area measurement of peak flow, gage height, 6.42 ft; no flow at times in 1991, 1994 and 1998.

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	4.3	1.4	9.6	e4.7	e23	44	11	5.5	11	1.6	.45	.67
2	3.1	1.6	9.2	e4.7	e20	37	10	4.7	15	1.4	2.2	.63
3	2.6	3.8	8.5	e4.6	e18	34	9.2	4.0	12	1.3	2.3	.58
4	11	2.3	7.7	e4.5	e17	30	9.3	3.3	9.7	1.3	1.5	.47
5	11	1.9	6.7	e4.6	15	25	11	3.1	15	1.1	.85	.39

6	11	3.6	5.9	e4.8	13	21	17	2.8	25	.82	.59	.54
7	8.1	25	5.5	e4.9	13	19	17	5.0	22	4.9	.46	5.7
8	6.2	21	5.3	e4.7	15	17	14	6.0	16	3.8	.39	3.2
9	5.2	63	5.2	e4.4	160	15	14	4.5	12	2.5	1.5	5.6
10	4.4	87	5.2	e4.3	200	14	15	5.3	8.7	2.0	.89	8.3

11	3.6	66	e5.8	e4.2	192	16	28	31	8.0	1.6	.49	5.8
12	3.3	48	e5.9	e4.4	113	16	60	29	49	1.2	.45	2.5
13	3.2	38	e5.7	e5.0	71	18	49	19	43	1.1	.54	1.8
14	2.9	31	e5.9	e6.2	58	16	36	16	26	1.1	.47	1.2
15	2.1	23	e5.6	e7.8	51	24	27	18	18	.79	.40	.81

16	2.1	19	e5.4	e8.2	43	33	23	14	14	.74	3.6	.54
17	2.1	16	e5.2	e8.4	e34	30	18	11	11	1.6	2.2	.55
18	2.0	13	e5.7	e8.4	e29	30	16	8.0	9.4	1.4	1.6	.67
19	2.1	11	e5.8	e7.4	25	29	14	5.9	7.6	1.4	2.4	16
20	1.9	9.4	e5.9	e6.7	22	25	16	4.7	5.8	1.0	2.1	14

21	2.5	8.5	e5.7	e6.2	e20	22	18	4.5	5.2	.70	1.6	33
22	2.9	7.5	e5.5	e5.8	e19	20	21	4.4	4.8	2.1	2.1	22
23	2.9	6.8	e5.4	e5.1	17	20	28	4.5	4.2	2.1	4.4	21
24	2.5	6.7	e5.3	e4.8	30	22	26	5.0	3.6	4.4	2.1	23
25	3.2	6.7	e5.2	e4.7	120	18	18	5.3	3.1	3.4	2.3	14

26	2.9	9.4	e5.0	e4.6	90	15	14	5.9	2.5	2.3	2.3	8.9
27	2.6	10	e4.9	e4.6	68	12	11	18	2.2	1.5	1.6	5.3
28	2.3	9.5	e4.8	e4.6	55	11	8.9	16	2.4	.85	1.1	3.9
29	2.5	9.5	e4.8	14	---	9.8	7.6	11	2.2	.80	.85	3.3
30	2.2	9.6	e4.7	e23	---	11	6.3	8.0	1.8	.74	.73	2.9

31	1.4	---	e4.7	e26	---	10	---	6.7	---	.77	.63	---

TOTAL	120.1	569.2	181.7	216.3	1551	663.8	573.3	290.1	370.2	52.31	45.09	207.25
MEAN	3.87	19.0	5.86	6.98	55.4	21.4	19.1	9.36	12.3	1.69	1.45	6.91
MAX	11	87	9.6	26	200	44	60	31	49	4.9	4.4	33
MIN	1.4	1.4	4.7	4.2	13	9.8	6.3	2.8	1.8	.70	.39	.39
CFSM	.23	1.12	.34	.41	3.26	1.26	1.12	.55	.73	.10	.09	.41
IN.	.26	1.25	.40	.47	3.39	1.45	1.25	.63	.81	.11	.10	.45

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1990 - 2001, BY WATER YEAR (WY)
MEAN	3.23	12.8	11.1	14.7	25.6	26.6	33.3	27.9	18.9	10.8	2.62	3.47
MAX	8.55	33.6	26.6	40.2	55.4	45.8	79.4	99.6	74.4	54.0	7.60	12.9
(WY)	1991	1993	1992	1999	2001	1990	1993	1996	1996	1993	1990	1992
MIN	.40	1.16	.98	3.14	10.9	7.56	9.33	3.36	.76	.44	.19	.11
(WY)	1995	1997	1990	1994	1995	1996	1994	1994	1992	1991	1991	1994

SUMMARY STATISTICS	FOR 2000 CALENDAR YEAR		FOR 2001 WATER YEAR		WATER YEARS 1990 - 2001
ANNUAL TOTAL	6674.06		4840.35
ANNUAL MEAN	18.2		13.3		15.8
HIGHEST ANNUAL MEAN					27.6	1993
LOWEST ANNUAL MEAN					9.47	1994
HIGHEST DAILY MEAN	161	May 19	200	Feb 10	284	May 21 1996
LOWEST DAILY MEAN	.48	Sep 7	.39	A	.00	B
ANNUAL SEVEN-DAY MINIMUM	.63	Sep 4	.56	Aug 31	.00	Sep 10 1994
MAXIMUM PEAK FLOW			265	Feb 11	312 C	Jul 18 1993
MAXIMUM PEAK STAGE			5.56	Feb 11	6.42	Jul 18 1993
INSTANTANEOUS LOW FLOW			.12	Sep 6
ANNUAL RUNOFF (CFSM)	1.07		.78		.93
ANNUAL RUNOFF (INCHES)	14.60		10.59		12.66
10 PERCENT EXCEEDS	51		29		39
50 PERCENT EXCEEDS	6.9		5.8		6.7
90 PERCENT EXCEEDS	1.9		1.1		.61

	A - Aug. 8, Sept. 5.
	B - No flow at times in 1991, 1994 and 1998.
	C - From rating curve extended above 120 ft³/s on basis of slope-area measurement of peak flow.