05547755 DATA: Discharge Tables, 2000

Station list Available data
ILLINOIS RIVER BASIN

05547755 SQUAW CREEK AT ROUND LAKE, IL

LOCATION.-- Lat 42°21'00", long 88°05'13", 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 1994-2000.

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

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

DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1999 TO SEPTEMBER 2000 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	12	3.1	2.7	e1.9	e1.4	20	4.9	20	47	15	39	.68
2	8.1	3.2	2.7	e2.4	e1.4	17	4.8	16	48	15	25	.72
3	8.1	2.8	3.3	e2.9	e1.4	17	4.6	14	35	99	15	.72
4	12	2.7	4.0	e3.2	e1.4	15	4.3	12	26	86	9.6	.76
5	11	2.7	13	e2.7	e1.4	16	4.0	9.9	39	60	8.5	.78

6	7.5	2.6	16	e2.4	e1.4	13	3.8	8.2	38	47	8.1	.64
7	5.3	2.6	12	e2.2	e1.6	13	4.5	6.9	28	36	6.8	.48
8	4.3	2.7	8.7	3.5	e2.2	12	6.7	6.7	21	25	7.1	.63
9	11	3.0	7.3	4.7	e2.7	10	9.0	9.7	16	22	5.5	.57
10	7.3	4.6	6.0	8.5	e3.6	8.7	8.4	18	13	85	4.5	.53

11	6.7	5.8	5.1	9.0	4.5	7.7	7.8	23	25	122	3.8	2.2
12	5.8	3.4	4.8	7.1	4.1	7.1	7.6	24	77	103	3.2	8.3
13	5.4	2.8	4.6	6.0	e3.8	7.3	7.1	17	103	75	2.8	6.6
14	4.8	3.3	4.3	e5.0	e3.5	6.4	6.3	13	100	56	2.6	7.0
15	4.3	2.7	4.6	e4.3	4.2	6.6	5.7	10	87	41	2.5	5.5

16	3.8	2.5	4.7	e3.9	4.6	7.0	5.7	9.3	66	32	2.1	3.4
17	3.7	2.4	4.3	e3.5	4.6	6.3	9.9	10	50	26	5.0	2.0
18	3.4	2.4	4.3	e3.2	5.3	5.7	11	75	38	22	5.2	1.4
19	3.3	2.6	3.7	e2.9	6.8	6.1	26	161	30	19	4.3	.82
20	3.0	2.8	e3.2	e2.6	6.1	13	109	140	27	16	3.2	1.5

21	3.1	2.9	e2.8	e2.3	6.5	15	151	108	24	14	2.7	1.5
22	3.0	2.9	e2.3	e2.1	25	13	147	93	18	11	2.4	17
23	3.0	3.6	e1.9	e1.9	53	11	124	72	16	8.4	2.2	69
24	3.9	2.9	e1.5	e1.8	60	10	92	54	23	6.9	2.1	47
25	3.5	2.9	e1.3	e1.7	56	10	67	43	62	5.8	2.0	27

26	3.1	3.0	e1.1	e1.6	45	11	52	36	56	5.2	2.0	17
27	2.8	2.9	e1.2	e1.6	36	11	44	36	48	4.6	2.1	12
28	2.8	2.8	e1.3	e1.5	28	8.8	38	38	34	4.2	1.7	8.6
29	2.7	2.7	e1.3	e1.5	24	6.9	32	38	23	3.9	1.6	6.4
30	2.7	2.6	e1.1	e1.5	---	5.6	26	31	18	4.1	1.5	5.0

31	3.1	---	e1.2	e1.4	---	5.1	---	30	---	27	.73	---

TOTAL	164.5	89.9	136.3	100.8	399.5	322.3	1024.1	1182.7	1236	1097.1	184.83	255.73
MEAN	5.31	3.00	4.40	3.25	13.8	10.4	34.1	38.2	41.2	35.4	5.96	8.52
MAX	12	5.8	16	9.0	60	20	151	161	103	122	39	69
MIN	2.7	2.4	1.1	1.4	1.4	5.1	3.8	6.7	13	3.9	.73	.48
CFSM	.31	.18	.26	.19	.81	.61	2.01	2.24	2.42	2.08	.35	.50
IN.	.36	.20	.30	.22	.87	.71	2.24	2.59	2.70	2.40	.40	.56

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1990 - 2000, BY WATER YEAR (WY)
MEAN	3.17	12.2	11.5	15.4	22.9	27.1	34.6	29.6	19.5	11.6	2.72	3.16
MAX	8.55	33.6	26.6	40.2	44.6	45.8	79.4	99.6	74.4	54.0	7.60	12.9
(WY)	1991	1993	1992	1999	1997	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 1999 CALENDAR YEAR		FOR 2000 WATER YEAR		WATER YEARS 1990 - 2000
ANNUAL TOTAL	6337.26		6193.76
ANNUAL MEAN	17.4		16.9		16.1
HIGHEST ANNUAL MEAN					27.6	1993
LOWEST ANNUAL MEAN					9.47	1994
HIGHEST DAILY MEAN	175	Apr 23	161	May 19	284	May 21 1996
LOWEST DAILY MEAN	.79	Sep 20	.48	Sep 7	.00	A
ANNUAL SEVEN-DAY MINIMUM	.91	Sep 14	.63	Sep 4	.00	Sep 10 1994
INSTANTANEOUS PEAK FLOW			200	May 18	312 B	Jul 18 1993
INSTANTANEOUS PEAK STAGE			4.82	May 18	6.42	Jul 18 1993
INSTANTANEOUS LOW FLOW			.25	Sep 7-10
ANNUAL RUNOFF (CFSM)	1.02		1.00		.95
ANNUAL RUNOFF (INCHES)	13.87		13.55		12.84
10 PERCENT EXCEEDS	48		47		40
50 PERCENT EXCEEDS	5.1		6.0		6.8
90 PERCENT EXCEEDS	1.2		1.6		.56

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