05551675 DATA: Discharge Tables, 2001

Station list Available data
ILLINOIS RIVER BASIN

05551675 BLACKBERRY CREEK NEAR MONTGOMERY, IL

LOCATION.-- Lat 41°44'27", long 88°23'00", in NW1/4SE1/4 sec.25, T.38 N., R.7 E., Kane County, Hydrologic Unit 07120007, on right bank at bridge on Jericho Rd., 1.0 mi west of Montgomery, and at mile 13.0.

DRAINAGE AREA.-- 55.0 mi².

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

DISCHARGE: June 1998 to current year.

STAGE: Water years 1998-2001.

PRECIPITATION: October 1999 to current year.

GAGE.-- Water-stage recorder, phone telemeter, unheated tipping-bucket rain gage, and crest-stage gage. Datum of gage is 654.00 ft above sea level.

REMARKS.-- Collection, computation, and publication of precipitation data do not necessarily conform to standards used by the National Weather Service. Precipitation data could be subject to error for days with freezing and/or thawing of precipitation.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 1,040 ft³/s, Apr. 23, 1999, gage height, 8.61 ft; minimum, 2.9 ft³/s, Sept. 27, 1999.
PRECIPITATION: Maximum daily total, 2.17 in, April 20, 2000.

EXTREMES OUTSIDE PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum measured, 1,170 ft³/s, Feb. 22, 1997, gage height unknown.

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	14	e12	34	e15	e78	104	49	30	52	16	5.4	6.8
2	14	e13	32	e16	e70	91	49	29	78	14	5.2	6.4
3	14	e14	30	e18	e60	83	48	28	64	16	6.1	6.4
4	44	e14	30	e18	54	78	44	27	49	18	5.5	9.2
5	51	e14	28	e19	44	72	43	25	79	16	5.3	7.6

6	40	20	26	e19	41	65	57	25	162	13	5.2	7.2
7	29	86	e24	e19	37	64	62	28	104	13	4.5	17
8	24	82	e23	e19	43	61	58	31	79	13	4.3	12
9	21	116	19	e18	319	57	58	28	65	12	3.9	12
10	20	207	e19	e17	e500	54	55	26	54	12	4.4	19

11	19	141	16	e16	310	56	53	33	47	11	4.4	13
12	20	98	17	e16	173	58	83	34	46	9.6	4.2	10
13	17	80	e20	e17	132	70	75	29	45	9.4	4.0	8.1
14	17	67	e19	e19	132	66	60	37	38	8.5	3.4	7.1
15	17	57	e19	e21	153	78	62	27	38	8.9	3.5	6.1

16	16	52	e18	e24	133	125	69	26	37	8.2	6.6	6.0
17	16	48	e18	e27	107	111	61	24	e35	7.6	6.9	6.3
18	15	44	e17	e24	91	110	54	22	e32	7.7	5.5	7.8
19	e15	42	e16	e20	81	96	46	20	29	7.5	7.6	116
20	e15	40	e16	e17	80	86	46	19	27	7.1	6.4	85

21	e16	e37	e16	e15	76	77	47	21	27	7.0	5.0	77
22	e16	e35	e15	e14	68	73	47	23	28	7.2	5.0	58
23	e15	e32	e15	e14	64	69	45	23	28	10	6.1	49
24	e16	31	e15	e13	99	64	45	22	26	11	5.7	66
25	e17	31	e15	e13	e330	58	42	22	23	14	7.6	50

26	e16	37	e15	e13	e270	54	38	28	22	12	13	37
27	e15	39	e14	e13	170	54	36	37	19	9.1	7.4	30
28	e14	36	e14	e13	124	54	34	35	17	8.0	6.0	25
29	e14	35	e14	e17	---	54	32	31	17	8.9	5.4	23
30	e14	36	e14	e30	---	53	31	e29	16	7.4	5.4	21

31	e13	---	e14	e82	---	51	---	36	---	5.9	11	---

TOTAL	604	1596	602	616	3839	2246	1529	855	1383	329.0	179.9	805.0
MEAN	19.5	53.2	19.4	19.9	137	72.5	51.0	27.6	46.1	10.6	5.80	26.8
MAX	51	207	34	82	500	125	83	37	162	18	13	116
MIN	13	12	14	13	37	51	31	19	16	5.9	3.4	6.0
CFSM	.35	.97	.35	.36	2.49	1.32	.93	.50	.84	.19	.11	.49
IN.	.41	1.08	.41	.42	2.60	1.52	1.03	.58	.94	.22	.12	.54

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1998 - 2001, BY WATER YEAR (WY)
MEAN	39.4	38.2	25.8	47.2	80.7	52.0	84.7	48.9	58.5	45.3	21.5	18.5
MAX	82.2	53.2	38.1	106	137	72.5	156	84.6	73.4	90.8	35.4	26.8
(WY)	1999	2001	1999	1999	2001	2001	1999	1999	1999	1998	2000	2001
MIN	16.6	11.5	19.4	15.2	30.3	23.9	46.6	27.6	46.1	10.6	5.80	12.6
(WY)	2000	2000	2001	2000	2000	2000	2000	2001	2001	2001	2001	1999

SUMMARY STATISTICS	FOR 2000 CALENDAR YEAR		FOR 2001 WATER YEAR		WATER YEARS 1998 - 2001
ANNUAL TOTAL	12414.1		14583.9
ANNUAL MEAN	33.9		40.0
HIGHEST ANNUAL MEAN					64.6	1999
LOWEST ANNUAL MEAN					30.3	2000
HIGHEST DAILY MEAN	255	Apr 21	500 A	Feb 10	760	Apr 24 1999
LOWEST DAILY MEAN	8.1	Sep 6	3.4	Aug 14	3.4	Aug 14 2001
ANNUAL SEVEN-DAY MINIMUM	8.7	Sep 4	4.0	Aug 9	4.0	Aug 9 2001
MAXIMUM PEAK FLOW			580 A	Feb 10	1040	Apr 23 1999
MAXIMUM PEAK STAGE			7.58	Feb 10	8.61	Apr 23 1999
INSTANTANEOUS LOW FLOW			3.1	Aug 14	2.9	Sep 27 1999
ANNUAL RUNOFF (CFSM)	.62		.73
ANNUAL RUNOFF (INCHES)	8.40		9.87
10 PERCENT EXCEEDS	69		80
50 PERCENT EXCEEDS	23		24
90 PERCENT EXCEEDS	13		7.2

A- Estimated due to backwater from ice.