05440000 DATA: Discharge Tables, 2001

Station list Available data
ROCK RIVER BASIN

05440000 KISHWAUKEE RIVER NEAR PERRYVILLE, IL

LOCATION.-- Lat 42°11'40", long 88°59'55", in NE1/4NE1/4 sec.21, T.43 N., R.2 E., Winnebago County, Hydrologic Unit 07090006, on left bank at upstream side of bridge on Blackhawk Road, 1.4 mi downstream from South Branch Kishwaukee River, 2 mi southwest of Perryville, 7.1 mi upstream from Killbuck Creek, and at mile 9.6.

DRAINAGE AREA.-- 1,099 mi².

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

DISCHARGE: October 1939 to current year.

STAGE: Water years 1994-2001.

SURFACE-WATER QUALITY

CHEMICAL: Water years 1978-91.

SEDIMENT: April 1979 to September 1981.

REVISED RECORDS.-- WSP 1175: 1941(P), 1942. WSP 1508: 1941, 1949. WDR IL-75-1: Drainage area.

GAGE.-- Water-stage recorder, phone telemeter, and U.S. Army Corps of Engineers satellite telemeter and rain gage. Datum of gage is 692.13 ft above sea level (levels by U.S. Army Corps of Engineers). Prior to Apr. 30, 1949, nonrecording gage at same site and datum.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 24,200 ft³/s, July 18, 1996, gage height 23.54 ft; minimum discharge, 46 ft³/s, Oct. 6, 7, 10, 1956.
SUSPENDED-SEDIMENT CONCENTRATION: Maximum daily mean, 1,860 mg/L June 7, 1980; minimum daily mean, 13 mg/L Sept. 17, 1981.
SUSPENDED-SEDIMENT LOADS: Maximum daily, 24,000 tons Apr. 1, 1979; minimum daily, 11 tons Sept. 17, 1981.

EXTREMES OUTSIDE PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Flood in January 1938 reached a stage of 23.85 ft, from information by the U.S. Army Corps of Engineers.

REMARKS FOR CURRENT YEAR.-- Records good except those for estimated daily values, 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	656	413	587	e422	e1120	3120	978	796	940	410	207	167
2	600	418	572	e420	e970	2540	927	782	1420	388	379	166
3	567	416	562	e404	e840	2380	883	752	1620	378	356	165
4	643	409	550	e411	e980	2370	848	725	1350	380	284	192
5	838	407	524	e420	906	2070	854	708	1480	362	234	201

6	846	418	432	e430	775	1690	1030	691	2150	337	214	196
7	755	540	e405	e442	729	1490	1170	689	2190	328	202	368
8	676	789	e395	e453	684	1400	1120	750	1780	332	197	816
9	624	861	e390	e438	2190	1300	1040	736	1450	319	187	984
10	602	1340	e400	e452	4260	1210	1040	712	1240	299	181	887

11	578	1600	e400	e446	5360	1290	1140	1040	1090	279	187	669
12	550	1360	e400	e445	5700	1400	1860	1340	1040	265	179	473
13	528	1130	e440	e441	4650	1610	2140	1290	1220	257	175	383
14	521	977	e398	e440	3220	1540	1850	1080	1040	228	170	333
15	505	877	e415	468	2570	1590	1570	967	918	225	165	305

16	494	815	e410	517	2260	2470	1400	883	888	218	272	285
17	487	767	e430	534	1840	2560	1280	795	810	215	280	271
18	473	705	e450	543	1490	2340	1150	721	799	221	265	273
19	463	662	e440	512	1590	2220	1070	656	797	222	252	613
20	456	643	e435	487	1370	2100	1060	623	712	213	233	1230

21	449	590	e425	e470	1270	1940	1090	672	655	206	214	1980
22	439	558	e430	e460	1180	1780	1200	750	697	217	205	1610
23	438	597	e425	e450	1110	1660	1310	736	702	342	216	1300
24	446	575	e420	e440	1380	1530	1220	720	603	366	210	1300
25	446	558	e415	e430	7330	1380	1070	717	557	287	211	1140

26	446	571	e395	e415	7460	1250	979	725	524	262	257	875
27	453	593	e390	408	6740	1170	927	850	493	240	248	715
28	440	577	e388	442	4580	1110	873	989	469	230	220	606
29	424	578	e390	419	---	1060	826	902	452	228	201	548
30	422	581	e395	655	---	1020	806	791	434	225	186	509

31	417	---	e405	1080	---	988	---	740	---	219	177	---

TOTAL	16682	21325	13513	14794	74554	53578	34711	25328	30520	8698	6964	19560
MEAN	538	711	436	477	2663	1728	1157	817	1017	281	225	652
MAX	846	1600	587	1080	7460	3120	2140	1340	2190	410	379	1980
MIN	417	407	388	404	684	988	806	623	434	206	165	165
CFSM	.49	.65	.40	.43	2.42	1.57	1.05	.74	.93	.26	.20	.59
IN.	.56	.72	.46	.50	2.52	1.81	1.17	.86	1.03	.29	.24	.66

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1940 - 2001, BY WATER YEAR (WY)
MEAN	463	574	603	637	905	1417	1294	1039	959	612	450	456
MAX	2309	2881	3230	2265	2963	5395	4267	3355	3827	3263	2853	3577
(WY)	1973	1986	1983	1969	1997	1979	1993	1996	1993	1993	1987	1972
MIN	75.5	95.8	83.5	68.8	98.8	230	280	212	214	135	97.4	78.9
(WY)	1957	1957	1964	1959	1940	1956	1963	1949	1959	1941	1964	1946

SUMMARY STATISTICS	FOR 2000 CALENDAR YEAR		FOR 2001 WATER YEAR		WATER YEARS 1940 - 2001
ANNUAL TOTAL	345685		320227
ANNUAL MEAN	944		877		783
HIGHEST ANNUAL MEAN					1955	1993
LOWEST ANNUAL MEAN					227	1977
HIGHEST DAILY MEAN	10200	Jun 14	7460	Feb 26	16700	Jul 19 1996
LOWEST DAILY MEAN	222	Sep 9	165	Aug 15,Sep 3	49	Oct 10 1956
ANNUAL SEVEN-DAY MINIMUM	237	Sep 4	178	Aug 9	52	Sep 11 1964
MAXIMUM PEAK FLOW			8810	Feb 25	24200	Jul 18 1996
MAXIMUM PEAK STAGE			14.00	Feb 25	23.54	Jul 18 1996
INSTANTANEOUS LOW FLOW			162	A	46	B
ANNUAL RUNOFF (CFSM)	.86		.80		.71
ANNUAL RUNOFF (INCHES)	11.70		10.84		9.68
10 PERCENT EXCEEDS	1910		1610		1710
50 PERCENT EXCEEDS	545		597		432
90 PERCENT EXCEEDS	334		227		128

	A - Aug. 15, Sept. 2, 3.
	B - Oct. 6, 7, 10, 1956.