USGS CD-ROM: Current Year Discharge

05439500 SOUTH BRANCH KISHWAUKEE RIVER NEAR FAIRDALE, IL

LOCATION.--Lat 42°06'39", long 88°54'02", in SE¼SE¼ 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.--October 1939 to current year. Monthly discharge only for some periods, published in WSP 1308.

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

GAGE.--Water-stage recorder 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.

REMARKS.--Records good except those for estimated daily discharges, which are poor. Gage-height telemeter at station.

EXTREMES OUTSIDE PERIOD OF RECORD.--A stage of 11.9 ft occurred in March 1937, from information by a local resident.

DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	18	25	55	28	113	387	1390	595	291	220	50	53
2	16	24	43	33	203	342	1370	609	274	194	45	44
3	17	22	41	69	303	316	1060	692	254	198	44	42
4	16	23	40	260	317	298	838	615	240	421	55	41
5	16	27	42	493	296	278	685	537	236	705	184	40

6	16	32	35	573	264	266	593	522	226	474	162	35
7	16	36	34	840	240	256	536	1110	208	467	117	33
8	15	47	31	840	239	420	681	2500	201	721	110	30
9	21	33	31	636	244	973	1270	2530	227	511	76	34
10	17	27	37	470	234	806	1400	2340	427	363	64	30

11	21	24	35	356	330	659	1090	1600	697	287	62	27
12	19	27	34	364	891	525	841	1120	1240	241	54	29
13	23	26	31	308	913	458	734	1060	1170	210	48	e24
14	36	24	27	e310	664	421	727	845	826	185	45	e50
15	33	26	30	e290	528	363	630	713	664	165	44	e120

16	24	26	32	e270	459	331	2750	627	532	154	41	e100
17	20	23	27	e230	433	340	2550	531	449	136	41	57
18	20	29	31	e200	408	846	2080	478	423	121	40	45
19	20	27	27	e180	359	1470	1380	469	654	129	36	43
20	19	26	28	e170	323	1410	1130	1620	649	162	34	38

21	17	28	26	e150	296	1040	1830	1070	485	121	33	33
22	19	25	26	e140	280	794	1790	709	393	107	33	35
23	19	29	27	e130	262	650	1450	583	345	101	31	32
24	19	22	29	e125	264	549	1110	538	312	90	38	31
25	23	28	30	e119	256	483	909	489	285	82	148	33

26	26	27	35	114	250	454	957	425	460	74	162	32
27	31	27	29	109	322	424	926	378	309	69	85	30
28	57	28	35	107	427	400	781	379	314	67	82	25
29	38	34	36	109	---	372	702	391	290	61	123	28
30	33	39	33	109	---	346	643	353	254	60	80	31

31	26	---	30	107	---	620	---	326	---	56	58	---

TOTAL	711	841	1027	8239	10118	17297	34833	26754	13335	6952	2225	1225
MEAN	22.9	28.0	33.1	266	361	558	1161	863	445	224	71.8	40.8
MAX	57	47	55	840	913	1470	2750	2530	1240	721	184	120
MIN	15	22	26	28	113	256	536	326	201	56	31	24
CFSM	.06	.07	.09	.69	.93	1.44	3.00	2.23	1.15	.58	.19	.11
IN.	.07	.08	.10	.79	.97	1.66	3.35	2.57	1.28	.67	.21	.12

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1940 - 1998, BY WATER YEAR (WY)
MEAN	152	191	205	225	317	533	495	407	356	234	167	144
MAX	1318	1052	1234	946	1215	2392	1782	1316	1734	1863	1202	1181
(WY)	1955	1986	1983	1974	1997	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 1997 CALENDAR YEAR		FOR 1998 WATER YEAR		WATER YEARS 1940 - 1998
ANNUAL TOTAL	99428		123557
ANNUAL MEAN	272		339		285
HIGHEST ANNUAL MEAN					752	1993
LOWEST ANNUAL MEAN					65.7	1977
HIGHEST DAILY MEAN	7010	Feb 21	2750	Apr 16	14600	Jul 18 1996
LOWEST DAILY MEAN	15	Sep 30, Oct. 8	15	Oct 8	3.0	Jan 20 1940
ANNUAL SEVEN-DAY MINIMUM	16	Oct 2	16	Oct 2	4.1	Jan 19 1940
INSTANTANEOUS PEAK FLOW			3160	Apr 16	25400	Jul 18 1996
INSTANTANEOUS PEAK STAGE			7.67	Apr 16	13.37	Jul 18 1996
INSTANTANEOUS LOW FLOW			14	Oct 1	2.1	Jan 20 1940
ANNUAL RUNOFF (CFSM)	.70		.87		.74
ANNUAL RUNOFF (INCHES)	9.56		11.88		10.02
10 PERCENT EXCEEDS	416		845		663
50 PERCENT EXCEEDS	141		162		130
90 PERCENT EXCEEDS	22		26		19