05591200 DATA: Discharge Tables, 2004

Station list Available data
KASKASKIA RIVER BASIN

05591200 KASKASKIA RIVER AT COOKS MILLS, IL


LOCATION.-- Lat 39°35'00", long 88°24'48" (NAD of 1927), in NW1/4SW1/4 sec.10, T.13 N., R.7 E., Coles County, Hydrologic Unit 07140201, on right upstream side of bridge in Cooks Mills, 3.8 mi downstream from Flat Branch, and at mile 238.1.

DRAINAGE AREA.-- 473 mi².

PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE
	DISCHARGE: August 1970 to current year.
	STAGE: Water years 1994 to current year.
SURFACE-WATER QUALITY
	CHEMICAL: Water years 1977-91. Additional chemical data for water years 1961-68, 1971-72 are published in Water-Resources Investigations 78-24 and 79-25 as site O 02.
	SEDIMENT: January 1979 to September 1997.
	MISCELLANEOUS: Sediment concentration and particle size, water years 1993-97.

GAGE.-- Water-stage recorder, U.S. Army Corps of Engineers satellite telemeter, and crest-stage gage. Datum of gage is 617.40 ft above NGVD of 1929. Prior to July 30, 1981, at site 200 ft downstream at same datum.

REMARKS.-- Occasional golf-course irrigation water withdrawals approximately 15.5 miles upstream from the gage.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 11,000 ft³/s, May 13, 2002, gage height, 17.85 ft; no flow Sept. 11, 1988.
SUSPENDED-SEDIMENT CONCENTRATIONS: Maximum daily, 1,710 mg/L, May 1, 1983; minimum daily, 0 mg/L, Sept. 10, 11, 1988.
SUSPENDED-SEDIMENT LOADS: Maximum daily, 26,100 tons, Apr. 13, 1979; minimum daily, 0 ton, Sept. 10, 11, 1988.

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

Discharge, cubic feet per second, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	55	e32	582	1760	e170	208	4020	213	378	135	79	140
2	46	e31	475	1380	e165	222	3460	297	324	121	77	92
3	42	e35	383	1060	e155	210	2450	275	264	118	63	66
4	39	e36	341	1570	e150	282	1690	233	216	153	52	51
5	37	e35	331	3310	e140	761	1240	211	190	157	46	43

6	39	e35	323	3790	e140	1190	969	198	179	155	42	35
7	36	e36	305	3260	e135	1600	790	185	174	144	42	30
8	31	e44	287	2320	e130	1420	657	168	166	182	35	25
9	27	e37	283	1490	e125	1080	561	160	153	278	31	23
10	25	e35	291	1030	e120	835	475	155	145	223	29	24

11	25	e35	303	785	e120	650	399	159	153	354	28	22
12	25	e34	303	631	e120	515	346	284	397	634	49	21
13	25	e34	269	545	e120	415	307	349	744	828	53	19
14	e28	e34	252	496	e120	341	280	386	980	886	38	19
15	e38	e35	251	455	e115	298	254	530	961	840	33	19

16	e60	e36	249	419	e115	275	230	810	915	834	29	22
17	e55	e37	239	414	e115	265	218	1050	895	814	27	60
18	e48	e150	223	576	e130	259	205	1040	879	697	28	63
19	e43	631	206	654	e180	239	189	904	945	530	29	46
20	e40	989	191	634	e300	227	187	820	935	389	34	39

21	e38	1610	157	540	471	221	209	892	797	285	45	32
22	e36	1710	185	440	469	197	243	909	623	226	47	25
23	e36	1400	498	353	388	178	231	814	497	200	37	21
24	e35	1320	886	288	330	173	248	711	396	169	34	22
25	e34	1320	1260	e300	315	175	280	640	311	143	35	20

26	e33	1380	1480	e330	291	455	278	620	256	119	e45	17
27	e32	1290	1230	e300	261	988	263	609	227	100	e70	17
28	e35	1060	952	e260	231	2980	228	569	195	90	e85	17
29	e37	866	977	e220	209	4260	203	493	167	83	e76	15
30	e34	707	1280	e200	---	3850	191	462	150	77	e66	13

31	e32	---	1740	e180	---	3870	---	422	---	76	115	---

TOTAL	1146	15034	16732	29990	5830	28639	21301	15568	13612	10040	1499	1058
MEAN	37.0	501	540	967	201	924	710	502	454	324	48.4	35.3
MAX	60	1710	1740	3790	471	4260	4020	1050	980	886	115	140
MIN	25	31	157	180	115	173	187	155	145	76	27	13
CFSM	0.08	1.06	1.14	2.05	0.43	1.95	1.50	1.06	0.96	0.68	0.10	0.07
IN.	0.09	1.18	1.32	2.36	0.46	2.25	1.68	1.22	1.07	0.79	0.12	0.08

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1971 - 2004, BY WATER YEAR (WY)
MEAN	170	312	509	470	622	747	726	806	528	282	167	101
MAX	1189	2205	1626	1862	2028	2565	2116	2881	1864	1166	952	817
(WY)	1994	1993	1988	1974	1982	1979	1994	2002	1974	1973	1981	1993
MIN	12.7	22.2	16.7	14.2	43.8	101	56.0	103	48.0	16.8	14.9	10.4
(WY)	1985	2003	1977	1977	2003	2003	2003	1976	1988	1988	1988	1999

SUMMARY STATISTICS	FOR 2003 CALENDAR YEAR		FOR 2004 WATER YEAR		WATER YEARS 1971 - 2004
ANNUAL TOTAL	79214.4		160449
ANNUAL MEAN	217		438		453
HIGHEST ANNUAL MEAN					838	1973
LOWEST ANNUAL MEAN					132	2003
HIGHEST DAILY MEAN	2020	May 12	4260	Mar 29	10700	May 13 2002
LOWEST DAILY MEAN	9.8 A	Jan 25,26	13	Sep 30	0.00	Sep 11 1988
ANNUAL SEVEN-DAY MINIMUM	9.9 A	Jan 21	17	Sep 24	2.7	Sep 8 1988
MAXIMUM PEAK FLOW			4420 B	Mar 29	11000	May 13 2002
MAXIMUM PEAK STAGE			13.74 C	Jan 6	17.85	May 13 2002
INSTANTANEOUS LOW FLOW			12	Sep 30
ANNUAL RUNOFF (CFSM)	0.459		0.927		0.957
ANNUAL RUNOFF (INCHES)	6.23		12.62		13.00
10 PERCENT EXCEEDS	698		1040		1210
50 PERCENT EXCEEDS	60		214		173
90 PERCENT EXCEEDS	19		32		20

	A - Estimated due to backwater from ice.
	B - Gage height, 13.59 ft.
	C - Discharge, 3850 ft³/s.