05595200 DATA: Discharge Tables, 2004

Station list Available data
KASKASKIA RIVER BASIN


LOCATION.-- Lat 38°19'26", long 89°58'15" (NAD of 1927), in SW1/4SE1/4 sec.27 projected, T.2 S., R.8 W., St. Clair County, Hydrologic Unit 07140204, on left bank at downstream side of bridge on State Highway 156, 2 mi northeast of Hecker, 5 mi west of New Athens, and at mile 17.3.

DRAINAGE AREA.-- 129 mi².

PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE
	DISCHARGE: October 1969 to current year.
	STAGE: Water years 1995 to current year. October 1980 to September 1994 (8 a.m. gage heights).
SURFACE-WATER QUALITY
	CHEMICAL: Water years 1978-91.

REVISED RECORDS.-- WDR IL-75-1: Drainage area.

GAGE.-- Water-stage recorder, U.S. Army Corps of Engineers satellite telemeter, and crest-stage gage. Datum of gage is 375.00 ft above NGVD of 1929. June 28, 1976, to Nov. 9, 1978, nonrecording gage at same site and datum.

REMARKS.-- Two sewage-treatment plants 13-16 mi upstream.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 23,400 ft³/s, April 29, 1996, gage height, 44.4 ft, from floodmark; minimum daily discharge, 4.2 ft³/s, Oct. 17, 1976.

REMARKS FOR CURRENT YEAR.-- Records fair except those for estimated daily discharges, which are poor. Effluent from two sewage-treatment plants 13-16 mi upstream averaged about 15.0 ft³/s.

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	19	e54	36	92	e45	48	72	492	140	23	68	28
2	18	e26	32	82	e260	45	63	163	101	30	46	25
3	14	24	32	99	e300	74	55	78	81	107	47	23
4	15	22	34	2290	e100	474	51	56	67	93	37	20
5	15	22	40	1690	e74	614	52	53	60	314	40	20

6	14	51	40	223	e64	189	46	48	57	601	31	21
7	14	46	34	139	e54	99	43	43	54	88	29	19
8	14	25	33	108	e48	83	41	38	49	47	25	18
9	20	21	32	92	e75	76	37	35	48	36	23	16
10	49	20	40	77	e190	65	34	31	50	30	22	15

11	20	17	41	75	265	62	42	34	48	27	20	14
12	17	18	31	77	223	54	36	56	53	25	18	14
13	16	16	29	73	108	50	34	72	59	24	19	15
14	49	16	31	68	102	57	32	886	40	23	19	15
15	36	29	33	62	110	51	29	269	37	21	18	17

16	20	32	34	57	71	52	27	97	143	21	17	17
17	64	24	32	674	61	55	27	69	434	46	16	16
18	37	3320	33	947	69	57	29	156	341	21	17	13
19	23	1700	32	182	87	49	23	268	345	19	16	14
20	20	202	28	112	120	48	23	160	66	18	61	13

21	18	112	27	91	90	e43	23	84	47	18	31	12
22	17	77	28	e76	69	38	25	60	42	18	21	12
23	16	121	636	e66	66	39	55	87	36	171	21	12
24	16	263	159	e62	63	e40	60	256	31	36	25	12
25	14	84	83	e58	57	41	92	578	29	125	59	12

26	14	59	61	e55	51	62	44	2300	25	62	628	12
27	14	52	54	e52	46	184	34	1960	24	29	68	12
28	15	46	60	e50	48	107	30	2190	24	25	107	11
29	17	38	1150	e48	49	257	29	402	22	23	192	11
30	e20	38	240	e47	---	138	30	334	23	806	52	11

31	e30	---	134	e46	---	92	---	503	---	345	34	---

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1970 - 2004, BY WATER YEAR (WY)
MEAN	42.7	110	126	109	155	188	182	161	110	78.4	42.0	57.0
MAX	270	516	590	338	505	611	751	1306	513	322	271	471
(WY)	1987	1986	1983	1974	1982	1984	1994	1995	2003	1981	1998	1993
MIN	6.51	7.53	9.66	7.19	19.1	19.4	20.2	18.4	14.9	11.6	7.64	6.66
(WY)	1972	1972	1977	1977	1978	1981	1981	1988	1972	1970	1971	1976

SUMMARY STATISTICS	FOR 2003 CALENDAR YEAR		FOR 2004 WATER YEAR		WATER YEARS 1970 - 2004
ANNUAL TOTAL	45686		45968
ANNUAL MEAN	125		126		113
HIGHEST ANNUAL MEAN					198	1973
LOWEST ANNUAL MEAN					23.5	1976
HIGHEST DAILY MEAN	3760	Jun 12	3320	Nov 18	13300	May 17 1995
LOWEST DAILY MEAN	12 A	B	11	Sep 28, 29, 30	4.2	Oct 17 1976
ANNUAL SEVEN-DAY MINIMUM	12	Aug 15	12	Sep 24	4.8	Oct 12 1976
MAXIMUM PEAK FLOW			5200	Nov 18	23400	Apr 29 1996
MAXIMUM PEAK STAGE			40.50	Nov 18	44.4 C	Apr 29 1996
INSTANTANEOUS LOW FLOW			9.3	Sep 29
ANNUAL RUNOFF (CFSM)	0.970		0.974		0.876
ANNUAL RUNOFF (INCHES)	13.17		13.26		11.91
10 PERCENT EXCEEDS	180		228		189
50 PERCENT EXCEEDS	38		46		28
90 PERCENT EXCEEDS	15		16		9.4

	A - May have been less during period of estimated discharges in January.
	B - Several days.
	C - From floodmark.