USGS CD-ROM: Current Year Discharge

05593900 EAST FORK SHOAL CREEK NEAR COFFEEN, IL

LOCATION.--Lat 39°08'56", long 89°21'08", in NW¼SE¼ sec.7, T.8 N., R.2 W., Montgomery County, Hydrologic Unit 07140203, on right bank at downstream side of bridge on County Highway 8, 4.5 mi northeast of Coffeen, 6.5 mi east of Hillsboro, and at mile 39.3.

DRAINAGE AREA.--55.5 mi².

PERIOD OF RECORD.--October 1963 to current year.

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

GAGE.--Water-stage recorder. Datum of gage is 574.76 ft above sea level.

REMARKS.--Records fair except those for estimated daily discharges, which are poor. Gage-height telemeter at station.

DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	.00	.00	8.6	1.5	7.5	16	119	40	12	27	23	3.9
2	.00	.00	3.0	1.3	6.8	14	49	48	11	20	17	3.6
3	.00	.00	1.4	1.3	6.2	12	229	545	10	18	15	3.5
4	.00	.00	.72	1.5	5.7	13	399	212	11	17	169	2.5
5	.00	.05	.60	4.3	5.5	16	88	57	23	17	2880	1.8

6	.00	.20	.41	28	5.4	13	54	39	20	16	260	1.5
7	.00	.10	.39	15	5.3	11	43	53	14	129	80	e1.1
8	.00	.04	.39	385	5.0	284	37	121	47	46	49	e.90
9	.00	.03	e.50	143	4.6	331	32	39	277	18	27	e.80
10	.00	.03	e.65	31	4.4	95	28	27	43	391	18	e.70

11	.00	.06	e.90	17	7.8	31	25	21	199	83	13	e.64
12	.00	.06	e.65	13	21	22	24	17	371	23	10	e.58
13	.00	.08	e.50	11	13	24	27	240	58	18	7.7	e.54
14	.00	.13	e.45	8.4	8.7	51	54	37	92	16	6.5	e.50
15	.00	.14	e.40	9.2	7.3	28	249	20	106	15	5.4	e1.7

16	.00	.13	e.36	8.8	17	21	292	16	1470	15	3.8	e1.1
17	.00	.07	e.33	e7.0	237	286	66	14	241	13	4.4	e1.4
18	.00	.03	e.30	e6.0	290	486	35	12	50	13	212	e1.9
19	.00	.03	e.27	e5.4	64	158	28	11	421	12	70	e1.3
20	.00	.03	e.25	e4.8	39	1620	25	10	56	12	15	e1.1

21	.00	.09	e.50	e4.8	29	956	23	10	61	11	7.4	1.0
22	.00	.07	e1.2	e5.0	21	179	21	494	238	108	5.1	.92
23	.00	.03	3.8	e5.4	18	89	19	114	145	334	4.0	.79
24	.00	.00	8.2	5.8	15	51	18	227	79	29	3.4	.74
25	.00	.02	22	5.8	13	33	17	71	27	20	3.0	35

26	.00	.06	8.3	5.6	12	41	16	44	22	17	3.0	9.8
27	.00	.10	3.7	7.5	66	61	14	26	19	16	2.7	2.4
28	.00	.06	2.3	13	29	1050	15	20	17	15	2.7	.98
29	.00	.13	1.8	15	---	166	103	17	57	14	2.6	.98
30	.00	.69	1.8	11	---	73	45	15	154	93	2.5	.82

31	.00	---	1.6	8.5	---	83	---	13	---	58	3.7	---

TOTAL	0.00	2.46	76.27	789.9	964.2	6314	2194	2630	4351	1634	3925.9	84.49
MEAN	.000	.082	2.46	25.5	34.4	204	73.1	84.8	145	52.7	127	2.82
MAX	.00	.69	22	385	290	1620	399	545	1470	391	2880	35
MIN	.00	.00	.25	1.3	4.4	11	14	10	10	11	2.5	.50
CFSM	.00	.00	.04	.46	.62	3.67	1.32	1.53	2.61	.95	2.28	.05
IN.	.00	.00	.05	.53	.65	4.23	1.47	1.76	2.92	1.10	2.63	.06

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1964 - 1998, BY WATER YEAR (WY)
MEAN	13.2	25.2	57.5	56.0	64.0	78.5	76.5	57.3	35.2	18.4	10.9	13.8
MAX	192	193	256	279	222	313	347	303	203	176	127	181
(WY)	1970	1994	1983	1974	1982	1978	1994	1990	1973	1982	1998	1993
MIN	.000	.082	.049	.16	1.96	8.86	4.40	1.36	.13	.000	.000	.000
(WY)	1964	1998	1977	1977	1978	1972	1986	1988	1988	1964	1988	1964

SUMMARY STATISTICS	FOR 1997 CALENDAR YEAR		FOR 1998 WATER YEAR		WATER YEARS 1964 - 1998
ANNUAL TOTAL	8027.74		22966.22
ANNUAL MEAN	22.0		62.9		42.1
HIGHEST ANNUAL MEAN					99.7	1974
LOWEST ANNUAL MEAN					6.76	1992
HIGHEST DAILY MEAN	1560	Feb 27	2880	Aug 5	2880	Aug 5 1998
LOWEST DAILY MEAN	.00	Many days	.00	Many days	.00	A
ANNUAL SEVEN-DAY MINIMUM	.00	Oct 1	.00	Oct 1	.00	Oct 1 1963
INSTANTANEOUS PEAK FLOW			5030	Aug 5	5910 B	Dec 7 1966
INSTANTANEOUS PEAK STAGE			14.75	Aug 5	14.75	Aug 5 1998
ANNUAL RUNOFF (CFSM)	.40		1.13		.76
ANNUAL RUNOFF (INCHES)	5.38		15.39		10.31
10 PERCENT EXCEEDS	33		149		61
50 PERCENT EXCEEDS	2.5		12		4.8
90 PERCENT EXCEEDS	.01		.01		.08

A - Many days in most years.
B - Gage height, 14.45 ft, from rating curve extended above 2,200 ft³/s.