05591700 DATA: Discharge Tables, 2001

Station list Available data
KASKASKIA RIVER BASIN

05591700 WEST OKAW RIVER NEAR LOVINGTON, IL

LOCATION.-- Lat 39°43'52", long 88°39'43", in NW1/4SW1/4 sec.21, T.15 N., R.5 E., Moultrie County, Hydrologic Unit 07140201, on left downstream side of bridge on State Highways 32 and 133, 1.5 mi northwest of Lovington, 1.7 mi upstream from Stringtown Branch, and at mile 25.4.

DRAINAGE AREA.-- 112 mi².

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

DISCHARGE: February 1980 to current year.

STAGE: Water years 1994-2001. Gage-height record for January 1963 to February 1980 available in files of U.S. Army Corps of Engineers.

PARTIAL RECORD: Occasional low-flow measurements, water years 1971-73.

SURFACE-WATER QUALITY

CHEMICAL: Water years 1980-91.

GAGE.-- Water-stage recorder, and U.S. Army Corps of Engineers satellite telemeter and rain gage. Datum of gage is 632.50 ft above sea level (levels by U.S. Army Corps of Engineers).

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 10,300 ft³/s, May 8, 1996, from rating curve extended above 9,490 ft³/s, gage height 16.40 ft; no flow many days in most years.

EXTREMES OUTSIDE PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Flood of May 1968 reached a stage of 14.66 ft, discharge not determined, from information by U.S. Army Corps of Engineers.

REMARKS FOR CURRENT YEAR.-- Records 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	70	56	79	e31	397	319	47	51	55	23	12	14
2	63	56	72	e30	e240	246	42	49	56	20	19	6.8
3	56	52	67	e30	e160	203	41	44	52	19	14	4.1
4	51	49	68	e33	105	170	37	40	94	23	7.3	3.2
5	541	50	68	e32	94	131	41	40	211	23	5.5	2.4

6	818	56	62	e30	75	108	75	40	2010	18	4.0	1.9
7	482	124	64	e29	86	95	58	39	1580	15	2.8	2.2
8	290	119	61	e28	120	86	51	37	770	14	2.2	3.9
9	198	181	51	e27	501	75	47	33	529	13	1.8	19
10	152	517	e52	e28	704	69	52	33	375	11	1.5	33

11	119	346	e80	e28	379	67	1350	35	277	10	1.1	16
12	99	240	e160	e27	230	63	645	32	211	8.9	.83	10
13	90	262	e130	e29	168	65	399	28	173	8.0	.58	7.9
14	86	258	e100	e42	244	54	279	29	142	7.1	.43	7.0
15	87	187	e85	e100	409	53	226	32	120	6.6	.29	6.4

16	82	162	e75	e120	319	155	169	33	98	6.1	.24	5.5
17	80	128	e68	e84	213	332	135	30	84	5.5	.19	4.9
18	75	106	e80	e70	149	263	111	36	77	51	.35	5.5
19	73	101	e70	e58	127	196	99	86	71	25	1.3	7.2
20	72	91	e60	e50	106	157	96	80	63	12	1.9	7.4

21	73	76	e52	e54	82	127	85	81	60	9.1	.67	6.9
22	68	73	e46	e47	77	104	74	73	56	7.5	.46	6.4
23	64	70	e43	e43	70	89	73	63	48	6.5	4.0	5.8
24	65	68	e40	e40	152	77	66	65	42	5.7	5.3	5.8
25	68	76	e40	e39	1680	66	58	62	38	13	3.7	5.3

26	70	168	e42	e45	898	62	60	58	35	74	2.2	4.7
27	68	160	e44	e41	605	58	59	62	32	12	1.7	4.8
28	63	121	e41	e31	432	55	54	53	30	8.2	.89	4.9
29	58	103	e38	e130	---	55	48	44	28	87	.45	4.4
30	58	87	e36	1260	---	52	48	41	26	65	.68	4.0

31	58	---	e33	757	---	49	---	45	---	22	45	---

TOTAL	4297	4143	2007	3393	8822	3701	4625	1474	7443	629.2	142.36	221.3
MEAN	139	138	64.7	109	315	119	154	47.5	248	20.3	4.59	7.38
MAX	818	517	160	1260	1680	332	1350	86	2010	87	45	33
MIN	51	49	33	27	70	49	37	28	26	5.5	.19	1.9
CFSM	1.24	1.23	.58	.98	2.81	1.07	1.38	.42	2.22	.18	.04	.07
IN.	1.43	1.38	.67	1.13	2.93	1.23	1.54	.49	2.47	.21	.05	.07

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1980 - 2001, BY WATER YEAR (WY)
MEAN	37.4	88.7	120	108	180	173	174	225	144	62.4	30.8	18.5
MAX	316	530	378	385	669	536	520	873	490	373	351	224
(WY)	1994	1986	1991	1993	1982	1982	1994	1996	1998	1992	1981	1993
MIN	.000	.000	.020	.96	15.8	21.9	22.8	21.5	7.24	.075	.000	.000
(WY)	1989	2000	2000	2000	2000	2000	2000	1988	1988	1988	1988	1988

SUMMARY STATISTICS	FOR 2000 CALENDAR YEAR		FOR 2001 WATER YEAR		WATER YEARS 1980 - 2001
ANNUAL TOTAL	24805.38		40897.86
ANNUAL MEAN	67.8		112		115
HIGHEST ANNUAL MEAN					182	1982
LOWEST ANNUAL MEAN					39.2	2000
HIGHEST DAILY MEAN	1140	Jul 6	2010	Jun 6	6080	Apr 12 1994
LOWEST DAILY MEAN	.08 A	Jan 1	.19	Aug 17	.00	B
ANNUAL SEVEN-DAY MINIMUM	.13	Feb 1	.42	Aug 12	.00	Sep 28 1983
MAXIMUM PEAK FLOW			2940	Jun 6	10300 C	May 8 1996
MAXIMUM PEAK STAGE			11.76	Jun 6	16.40	May 8 1996
INSTANTANEOUS LOW FLOW			.15	Aug 17,18
ANNUAL RUNOFF (CFSM)	.61		1.00		1.02
ANNUAL RUNOFF (INCHES)	8.24		13.58		13.92
10 PERCENT EXCEEDS	158		240		300
50 PERCENT EXCEEDS	34		56		38
90 PERCENT EXCEEDS	2.1		5.1		.01

	A - Estimated, but may have been less during periods of estimated discharges in Jan. and Feb.
	B - Many days in most years.
	C - From rating curve extended above 9,490 ft³/s.