05439500 DATA: Discharge Tables, 2001

Station list Available data
ROCK RIVER BASIN

05439500 SOUTH BRANCH KISHWAUKEE RIVER NEAR FAIRDALE, IL

LOCATION.-- Lat 42°06'38", long 88°54'02", in SE1/4SE1/4 sec.17, T.42 N., R.3 E., De Kalb County, Hydrologic Unit 07090006, on right bank at downstream side of bridge on Irene Road, 1.2 mi downstream from Owens Creek, 1.8 mi northeast of Fairdale, and at mile 11.0.

DRAINAGE AREA.-- 387 mi².

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

DISCHARGE: October 1939 to current year. Monthly discharge only for some periods, published in WSP 1308.

STAGE: Water years 1994-2001.

SURFACE-WATER QUALITY

CHEMICAL: Water years 1978-81.

MISCELLANEOUS: May 1998 and July 1998.

REVISED RECORDS.-- WSP 1508: 1940, 1942(M). WDR IL-75-1: Drainage area.

GAGE.-- Water-stage recorder, phone telemeter, and crest-stage gage. Datum of gage is 733.90 ft above sea level (levels by U.S. Army Corps of Engineers). Prior to May 1, 1940, nonrecording gage at same site and datum. Prior to Nov. 7, 1986, water-stage recorder on left bank at upstream side of bridge at same site and datum.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 25,400 ft³/s, July 18, 1996, gage height 13.37 ft; minimum discharge, 2.1 ft³/s, Jan. 20, 1940.

EXTREMES OUTSIDE PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: A stage of 11.9 ft occurred in March 1937, from information by a local resident.

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	111	94	163	e96	997	1010	303	229	398	142	56	23
2	112	95	160	e93	818	813	283	224	683	135	63	23
3	108	94	157	e90	652	729	267	214	721	131	78	23
4	150	93	154	e91	645	697	252	205	525	139	62	30
5	229	94	e150	e95	557	593	254	203	708	123	50	37

6	212	92	e148	e97	479	482	348	197	1180	115	42	30
7	174	132	e145	e96	434	431	425	206	1100	112	37	59
8	152	220	e140	e95	413	410	374	235	789	110	34	95
9	141	244	e120	e93	1920	375	353	218	605	105	29	59
10	135	606	e108	e83	3170	344	347	215	501	101	29	78

11	128	579	e105	e80	3220	364	354	432	431	95	37	59
12	123	417	e100	e79	2630	390	883	412	390	90	30	42
13	117	337	e98	e80	1770	461	800	321	350	87	26	34
14	126	288	e99	e83	1040	447	594	280	313	82	25	29
15	116	251	e103	e102	982	551	499	266	297	79	25	28

16	112	230	e106	e130	856	1120	e470	242	295	75	30	27
17	110	216	e105	e122	669	1080	e450	223	259	75	47	27
18	106	193	e100	e113	576	969	e380	205	279	74	37	29
19	103	183	e96	e108	586	941	353	192	262	72	36	217
20	104	180	e92	e107	488	875	343	182	232	71	44	282

21	100	e170	e90	e101	477	796	e355	205	224	68	34	810
22	98	e165	e90	e89	418	713	e370	247	292	67	32	339
23	100	e155	e90	e83	384	639	354	222	262	70	43	201
24	102	151	e91	e79	667	570	314	222	220	70	32	323
25	100	142	e92	e75	3370	497	288	211	199	70	33	237

26	105	151	e93	e72	2600	436	278	216	186	67	46	149
27	103	156	e95	e70	2440	391	267	326	174	63	39	106
28	98	143	e96	e71	1580	359	245	350	166	59	32	84
29	98	142	e97	e70	---	341	233	291	157	59	29	73
30	97	155	e96	e490	---	323	230	250	151	56	26	64

31	95	---	e96	978	---	309	---	239	---	55	25	---

TOTAL	3765	6168	3475	4111	34838	18456	11266	7680	12349	2717	1188	3617
MEAN	121	206	112	133	1244	595	376	248	412	87.6	38.3	121
MAX	229	606	163	978	3370	1120	883	432	1180	142	78	810
MIN	95	92	90	70	384	309	230	182	151	55	25	23
CFSM	.31	.53	.29	.34	3.22	1.54	.97	.64	1.06	.23	.10	.31
IN.	.36	.59	.33	.40	3.35	1.77	1.08	.74	1.19	.26	.11	.35

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1940 - 2001, BY WATER YEAR (WY)
MEAN	155	191	203	230	337	527	501	409	381	232	164	144
MAX	1318	1052	1234	946	1244	2392	1782	1316	1734	1863	1202	1181
(WY)	1955	1986	1983	1974	2001	1979	1993	1996	1993	1996	1987	1980
MIN	11.3	12.6	11.3	6.19	15.5	70.2	61.1	47.8	57.4	20.5	17.9	12.3
(WY)	1954	1954	1964	1940	1940	1956	1963	1949	1988	1940	1971	1953

SUMMARY STATISTICS	FOR 2000 CALENDAR YEAR		FOR 2001 WATER YEAR		WATER YEARS 1940 - 2001
ANNUAL TOTAL	104827		109630
ANNUAL MEAN	286		300		289
HIGHEST ANNUAL MEAN					752	1993
LOWEST ANNUAL MEAN					65.7	1977
HIGHEST DAILY MEAN	2540	Jun 14	3370	Feb 25	14600	Jul 18 1996
LOWEST DAILY MEAN	41	Sep 9	23	Sep 1-3	3.0	Jan 20 1940
ANNUAL SEVEN-DAY MINIMUM	44	Sep 4	26	Aug 29	4.1	Jan 19 1940
MAXIMUM PEAK FLOW			3900	Feb 25	25400	Jul 18 1996
MAXIMUM PEAK STAGE			8.43	Feb 25	13.37	Jul 18 1996
INSTANTANEOUS LOW FLOW			22	Sep 1,3	2.1	Jan 20 1940
ANNUAL RUNOFF (CFSM)	.74		.78		.75
ANNUAL RUNOFF (INCHES)	10.08		10.54		10.15
10 PERCENT EXCEEDS	631		668		670
50 PERCENT EXCEEDS	150		154		132
90 PERCENT EXCEEDS	88		44		20