05590800 DATA: Discharge Tables, 2003

Station list Available data
KASKASKIA RIVER BASIN


LOCATION.-- Lat 39°48'23", long 88°28'34" (NAD of 1927), in NE1/4NW1/4 sec.36, T.16 N., R.6 E., Piatt County, Hydrologic Unit 07140201, on left bank at downstream side of bridge, 0.9 mi northwest of Atwood and at mile 9.0.

DRAINAGE AREA.-- 149 mi².

PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE
	DISCHARGE: October 1972 to current year.
	STAGE: Water years 1994 to current year.

REVISED RECORDS.-- WDR IL-93-1: 1989(M), 1990-92. WDR IL-94-1: 1989.

GAGE.-- Water-stage recorder, phone telemeter, and crest-stage gage. Datum of gage is 644.58 ft above NGVD of 1929.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 4,030 ft³/s, Mar. 5, 1979, gage height, 14.03 ft; maximum gage height, 15.39 ft, Apr. 12, 1994, discharge, 3,390 ft³/s; no flow for many days in most years.

REMARKS FOR CURRENT YEAR.-- Records poor.

Discharge, cubic feet per second, WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	1.5	1.0	0.38	2.7	e0.51	e1.7	16	12	65	76	11	58
2	1.3	0.87	0.44	1.8	e0.58	e1.7	16	14	54	53	10	155
3	1.2	0.72	0.43	1.9	e0.64	e1.5	17	11	47	42	11	103
4	1.3	0.69	0.40	2.0	e0.80	e1.4	16	8.9	43	35	11	58
5	1.2	0.71	0.42	2.0	e1.0	e1.5	18	38	37	29	11	41

6	1.1	0.80	0.45	2.3	e1.6	e1.6	15	84	34	24	13	33
7	1.2	0.81	0.47	1.9	e1.3	e1.8	15	78	34	21	15	19
8	0.97	0.56	0.49	1.9	e1.1	e2.2	18	59	30	19	13	9.4
9	0.83	0.54	0.51	2.1	e0.96	e2.5	17	50	28	68	6.3	6.8
10	0.72	0.81	0.55	1.5	e0.90	e3.1	16	309	26	866	3.8	6.5

11	0.61	0.57	0.63	1.0	e0.85	e7.0	16	637	26	826	2.8	5.5
12	0.54	0.51	0.70	0.65	e0.82	12	16	399	146	508	2.3	5.1
13	0.49	0.33	0.79	0.56	e0.80	23	14	227	360	292	2.2	5.0
14	0.23	0.24	0.92	e0.51	e0.88	47	15	153	427	182	2.2	5.9
15	0.24	0.37	1.0	e0.48	e1.0	46	12	244	323	124	2.1	6.8

16	0.17	0.38	1.1	e0.45	e1.1	36	12	304	223	86	1.7	6.6
17	0.10	0.40	1.1	e0.43	e1.1	32	16	214	164	60	1.7	6.9
18	0.08	0.27	1.4	e0.40	e1.0	29	15	158	132	54	0.94	7.7
19	0.86	0.41	2.6	e0.39	e1.0	27	12	125	119	47	0.46	8.0
20	1.4	0.42	2.1	e0.37	e1.1	28	14	172	98	36	0.39	7.6

21	1.1	0.70	1.6	e0.35	e1.3	28	18	162	80	53	0.47	7.1
22	1.0	0.71	1.4	e0.34	e2.0	27	17	127	70	65	0.57	8.1
23	1.1	0.75	1.1	e0.33	e5.4	25	15	105	63	46	0.43	8.2
24	0.89	0.90	1.1	e0.32	e4.5	24	13	91	55	32	0.38	7.7
25	1.1	0.86	0.99	e0.31	e3.6	24	16	80	48	24	0.38	7.0

26	1.3	0.86	0.80	e0.31	e2.8	23	17	69	44	19	0.33	6.7
27	1.4	0.86	0.81	e0.33	e2.2	20	14	56	41	15	0.35	8.1
28	0.95	0.90	0.88	e0.35	e1.9	22	12	52	36	14	0.35	9.2
29	1.2	0.96	0.98	e0.37	---	23	10	52	33	14	0.71	8.2
30	1.2	0.82	1.4	e0.40	---	19	9.9	49	69	13	1.4	6.7

31	1.2	---	3.0	e0.46	---	16	---	49	---	11	2.3	---

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1973 - 2003, BY WATER YEAR (WY)
MEAN	51.0	98.5	144	122	204	248	237	274	178	85.6	55.5	23.7
MAX	371	592	452	573	595	957	703	843	738	358	394	272
(WY)	1994	1993	1988	1993	1982	1979	1994	2002	1974	1973	1981	1993
MIN	0.000	0.66	0.46	0.16	1.53	18.0	14.9	32.4	2.65	0.000	0.000	0.000
(WY)	1989	2003	1977	1977	2003	2003	2003	2001	1988	1988	1984	1988

SUMMARY STATISTICS	FOR 2002 CALENDAR YEAR		FOR 2003 WATER YEAR		WATER YEARS 1973 - 2003
ANNUAL TOTAL	68237.96		12815.26
ANNUAL MEAN	187		35.1		143
HIGHEST ANNUAL MEAN					260	1973, 1993
LOWEST ANNUAL MEAN					35.1	2003
HIGHEST DAILY MEAN	3810	May 13	866	Jul 10	3810	May 13 2002
LOWEST DAILY MEAN	0.00	A	0.08	Oct 18	0.00	B
ANNUAL SEVEN-DAY MINIMUM	0.00	A	0.26	Oct 12	0.00	B
MAXIMUM PEAK FLOW			1020	Jul 10	4030 C	Mar 5 1979
MAXIMUM PEAK STAGE			10.57	Jul 10	15.39 D	Apr 12 1994
INSTANTANEOUS LOW FLOW			0.00	Oct 18
ANNUAL RUNOFF (CFSM)	1.25		0.24		0.96
ANNUAL RUNOFF (INCHES)	17.04		3.20		13.04
10 PERCENT EXCEEDS	533		79		385
50 PERCENT EXCEEDS	29		5.0		50
90 PERCENT EXCEEDS	0.21		0.43		0.70