05590800 DATA: Discharge Tables, 2004

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 2003 TO SEPTEMBER 2004 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	5.8	e5.7	119	353	e45	50	1060	52	85	25	9.4	e6.5
2	5.6	e5.0	95	282	e42	50	796	49	72	23	7.7	e6.0
3	5.7	e5.1	89	239	e41	36	616	43	60	21	7.0	e5.4
4	5.7	e5.4	89	930	e40	99	464	40	55	21	6.5	e5.0
5	4.9	e6.0	86	1680	e38	798	337	43	55	17	6.0	e4.5

6	4.5	e7.2	75	1040	e37	711	268	39	57	16	5.4	e4.2
7	4.6	e7.0	73	621	e36	462	230	35	52	53	4.7	e4.0
8	4.7	e6.0	75	383	e35	305	199	30	47	54	4.5	e3.8
9	4.8	e5.5	75	268	e34	227	166	30	41	32	4.4	e3.6
10	5.2	e5.1	80	198	e33	169	145	30	43	492	e5.7	e3.4

11	5.0	e5.6	71	174	e32	147	133	54	343	963	e7.0	e3.2
12	5.7	e6.4	65	178	e32	119	121	64	484	621	e5.5	e3.1
13	6.0	e6.2	63	151	e31	98	113	97	288	341	e4.3	e3.0
14	8.5	e5.5	54	139	e30	92	102	484	183	561	e3.6	e5.1
15	12	e4.9	51	136	e30	82	91	722	135	489	e3.1	e6.7

16	11	e5.0	52	112	e30	82	88	508	207	283	e2.8	e10
17	e9.0	8.8	40	118	e30	78	83	338	442	176	e2.6	e4.3
18	e7.8	110	38	207	35	72	75	252	381	118	e3.2	e2.9
19	e7.2	1010	35	163	56	60	79	368	229	83	e2.8	e1.9
20	e7.1	790	33	122	101	59	64	362	157	62	e3.8	e1.6

21	e6.8	536	40	106	98	53	72	268	127	47	e6.2	e1.6
22	e6.6	366	42	96	62	46	66	214	109	37	e5.9	e1.4
23	e6.4	281	478	95	54	47	87	185	83	34	e4.5	e1.3
24	e6.0	577	704	102	59	51	78	157	68	26	e3.5	e1.6
25	e5.8	483	451	62	56	54	80	158	57	20	e4.9	e1.4

26	e6.1	336	287	e70	51	659	73	153	49	17	e5.3	e1.35
27	e6.6	255	214	e64	47	2020	62	139	43	14	e8.1	e1.25
28	e6.5	200	192	e59	42	1450	56	121	38	12	e5.8	e1.2
29	e6.6	161	631	e54	43	1130	57	99	33	11	e18	e1.3
30	e6.2	149	771	e51	---	1300	50	98	28	11	e15	e1.4

31	e5.8	---	516	e48	---	1570	---	99	---	11	e7.8	---

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1973 - 2004, BY WATER YEAR (WY)
MEAN	49.6	101	145	127	198	253	235	271	176	87.6	54.0	23.0
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	0.00	0.66	0.46	0.16	1.53	18.0	14.9	32.4	2.65	0.00	0.00	0.00
(WY)	1989	2003	1977	1977	2003	2003	2003	2001	1988	1988	1984	1988

SUMMARY STATISTICS	FOR 2003 CALENDAR YEAR		FOR 2004 WATER YEAR		WATER YEARS 1973 - 2004
ANNUAL TOTAL	23974.71		53286.60
ANNUAL MEAN	65.7		146		143
HIGHEST ANNUAL MEAN					260	1973, 1993
LOWEST ANNUAL MEAN					35.1	2003
HIGHEST DAILY MEAN	1010	Nov 19	2020	Mar 27	3810	May 13 2002
LOWEST DAILY MEAN	0.31 A	Jan 25, 26	1.2 B	Sep 28	0.00	C
ANNUAL SEVEN-DAY MINIMUM	0.33 A	Jan 21	1.3 B	Sep 23	0.00	C
MAXIMUM PEAK FLOW			2140	Mar 27	4030 D	Mar 5 1979
MAXIMUM PEAK STAGE			13.00	Mar 27	15.39 E	Apr 12 1994
ANNUAL RUNOFF (CFSM)	0.441		0.977		0.960
ANNUAL RUNOFF (INCHES)	5.99		13.30		13.05
10 PERCENT EXCEEDS	167		454		386
50 PERCENT EXCEEDS	13		52		50
90 PERCENT EXCEEDS	0.81		4.6		0.76

	A - Estimated due to backwater from ice.
	B - Estimated.
	C - Many days in most years.
	D - Gage height, 14.03 ft.
	E - Discharge, 3,390 ft³/s.