05594800 DATA: Discharge Tables, 2000

Station list Available data
KASKASKIA RIVER BASIN

05594800 SILVER CREEK NEAR FREEBURG, IL

LOCATION.-- Lat 38°24'22", long 89°52'26", in NE1/4NE1/4 sec.33, T.1 S., R.7 W., St. Clair County, Hydrologic Unit 07140204, on left bank at downstream side of bridge on State Highway 15, 2.2 mi southeast of Freeburg, 4.8 mi northwest of Fayetteville, and at mile 9.6.

DRAINAGE AREA.-- 464 mi².

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

DISCHARGE: October 1970 to current year.

STAGE: Water years 1995-2000. October 1980 to September 1994 (8:00 a.m. gage heights).

SURFACE-WATER QUALITY

CHEMICAL: Water years 1978-91.

REVISED RECORDS.-- WDR IL-73-1: Drainage area.

GAGE.-- Water-stage recorder, U.S. Army Corps of Engineers satellite telemeter and rain gage, phone telemeter, and crest-stage gage. Datum of gage is 381.40 ft above sea level.

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

DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1999 TO SEPTEMBER 2000 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	4.8	e1.8	e5.0	e3.5	e12	55	34	34	185	2300	2090	128
2	14	e15	e4.3	e3.2	e12	50	30	29	112	1050	2520	94
3	9.5	e13	e4.0	e15	e13	42	29	25	75	377	2060	76
4	5.8	e10	e5.0	104	e14	38	26	23	54	400	970	63
5	5.6	e8.5	e7.5	102	e15	42	24	22	50	424	275	54

6	7.7	e7.0	e20	55	17	36	23	21	47	218	176	44
7	6.7	e6.0	e18	40	17	30	30	37	45	153	190	40
8	7.5	e5.4	e13	35	17	28	183	238	34	120	917	40
9	51	e5.0	e10	30	17	29	98	245	26	98	1140	36
10	88	e4.7	e50	32	17	26	53	200	20	82	1360	37

11	45	e4.3	219	30	19	25	37	117	17	88	1610	72
12	24	e4.0	95	25	18	28	32	74	22	654	1570	299
13	16	e3.7	48	20	21	37	29	58	99	976	668	504
14	8.9	e3.5	30	19	34	37	26	88	81	1010	219	435
15	9.2	e3.3	18	17	37	32	23	65	55	764	143	242

16	5.7	e3.1	e13	16	32	28	25	59	395	273	111	137
17	5.2	e2.9	e11	16	25	24	54	40	1600	163	94	101
18	9.2	e2.8	e10	18	121	23	65	29	1420	197	545	66
19	9.5	e2.7	e9.0	24	848	29	43	23	533	1440	1080	47
20	4.3	e2.6	e8.0	26	564	58	31	19	192	2520	1110	43

21	3.6	e2.5	e7.4	21	199	130	26	16	441	2930	542	36
22	4.1	e2.5	e6.4	18	99	139	26	15	582	2700	231	30
23	4.7	e2.5	e5.8	16	62	113	27	48	340	2460	143	25
24	3.4	e2.5	e5.4	18	47	85	34	92	901	1790	119	24
25	e2.8	e4.0	e5.2	18	43	60	90	74	1660	534	644	125

26	e2.6	e14	e7.5	e14	50	47	74	62	3400	195	1060	875
27	e2.3	e11	e6.0	e12	80	52	49	701	4660	136	1070	1030
28	e2.1	e8.5	e5.2	e11	91	92	47	1100	5210	286	1080	1030
29	e2.0	e7.0	e4.7	e11	69	63	53	1080	4420	1030	873	790
30	e1.9	e6.0	e4.2	e11	---	48	44	951	3350	1160	362	296

31	e1.8	---	e3.8	e12	---	39	---	408	---	1420	191	---

TOTAL	368.9	169.8	659.4	792.7	2610	1565	1365	5993	30026	27948	25163	6819
MEAN	11.9	5.66	21.3	25.6	90.0	50.5	45.5	193	1001	902	812	227
MAX	88	15	219	104	848	139	183	1100	5210	2930	2520	1030
MIN	1.8	1.8	3.8	3.2	12	23	23	15	17	82	94	24
CFSM	.03	.01	.05	.06	.19	.11	.10	.42	2.16	1.94	1.75	.49
IN.	.03	.01	.05	.06	.21	.13	.11	.48	2.41	2.24	2.02	.55

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1971 - 2000, BY WATER YEAR (WY)
MEAN	85.2	272	427	396	601	686	702	513	349	168	125	97.3
MAX	506	1543	2380	1438	1954	2390	1771	3579	1214	902	822	1142
(WY)	1987	1994	1983	1974	1982	1978	1979	1995	1998	2000	1998	1993
MIN	2.55	2.21	6.86	3.87	42.2	34.5	45.3	25.4	12.4	12.9	10.7	4.30
(WY)	1972	1972	1977	1977	1978	1981	1981	1976	1988	1976	1971	1983

SUMMARY STATISTICS	FOR 1999 CALENDAR YEAR		FOR 2000 WATER YEAR		WATER YEARS 1971 - 2000
ANNUAL TOTAL	137430.3		103479.8
ANNUAL MEAN	377		283		367
HIGHEST ANNUAL MEAN					660	1973
LOWEST ANNUAL MEAN					74.6	1976
HIGHEST DAILY MEAN	6920	Feb 10	5210	Jun 28	15000	May 19 1995
LOWEST DAILY MEAN	1.8 A	Oct 31,Nov 1	1.8 A	Oct 31,Nov 1	.00	B
ANNUAL SEVEN-DAY MINIMUM	2.1	Oct 26	2.1	Oct 26	.75	Sep 15 1983
INSTANTANEOUS PEAK FLOW			5380	Jun 28	15300	May 19 1995
INSTANTANEOUS PEAK STAGE			17.97	Jun 28	25.38	May 19 1995
ANNUAL RUNOFF (CFSM)	.81		.61		.79
ANNUAL RUNOFF (INCHES)	11.02		8.30		10.74
10 PERCENT EXCEEDS	1130		986		1040
50 PERCENT EXCEEDS	93		37		71
90 PERCENT EXCEEDS	4.3		4.8		8.6

A - Estimated, but may have been less during periods of estimated discharges in Oct. and Nov.
B - Aug. 4-6, 1993, during period of backwater from the Mississippi River. Minimum daily discharge unaffected by backwater, 0.41 ft³/s, Sept. 17, 1983.