05595820 DATA: Discharge Tables, 2000

Station list Available data
BIG MUDDY RIVER BASIN

05595820 CASEY FORK AT MT. VERNON, IL

LOCATION.-- Lat 38°17'12", long 88°52'19", in NW1/4NW1/4 sec.9, T.3 S., R.3 E., Jefferson County, Hydrologic Unit 07140106, on left bank on upstream side of bridge on State Highway 142, 0.2 mi downstream from Sevenmile Creek, about 2 mi southeast of Mt. Vernon, and at mile 18.8.

DRAINAGE AREA.-- 76.9 mi².

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

DISCHARGE: October 1985 to current year.

STAGE: Water years 1995-2000. October 1985 to September 1994 (8 AM gage heights). Gage-height record for April 1965 to May 1971 available in files of U.S. Army Corps of Engineers.

GAGE.-- Water-stage recorder, U.S. Army Corps of Engineers satellite telemeter, phone telemeter, rain gage, and crest-stage gage. Datum of gage is 420.00 ft above sea level (levels by U.S. Army Corps of Engineers).

REMARKS.-- Sewage-treatment plant upstream at Mt. Vernon.

EXTREMES OUTSIDE PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Flood of Apr. 4, 1968, reached a stage of 14.60 ft, from records of U.S. Army Corps of Engineers.

REMARKS FOR CURRENT YEAR.-- Records fair except those for estimated daily discharges, which are poor. Effluent from sewage-treatment plant upstream at Mt. Vernon averaged about 3.8 ft³/s.

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	3.3	e3.3	e3.0	3.5	e3.2	26	18	35	7.5	15	40	3.3
2	3.1	e3.4	e3.0	3.7	e3.2	18	18	30	6.3	12	19	3.1
3	3.3	e3.3	e3.5	27	e3.2	15	17	26	5.2	11	14	3.1
4	3.5	e3.3	9.0	14	e3.2	18	15	27	4.7	10	11	3.1
5	3.5	e3.2	6.7	6.9	3.2	15	14	19	5.8	8.5	8.6	3.0

6	3.4	e3.2	3.4	4.5	3.2	12	13	16	4.6	31	7.4	3.0
7	3.4	e3.1	2.8	e4.0	3.9	9.5	29	77	4.1	18	11	2.9
8	13	e3.1	2.7	e3.7	3.2	8.0	242	91	3.9	9.7	470	2.9
9	7.1	e3.0	11	e3.5	3.1	7.9	69	72	4.0	7.2	126	2.6
10	4.3	2.9	40	e3.5	3.2	6.4	44	104	4.0	5.8	39	3.4

11	3.4	2.9	6.9	e3.3	3.0	12	34	37	4.4	8.8	20	3.1
12	3.6	2.9	16	e3.2	3.1	21	26	24	13	47	13	3.4
13	3.6	2.9	8.4	e3.2	20	42	21	47	8.2	30	9.9	3.2
14	4.0	3.0	8.1	e3.2	21	104	19	27	5.0	17	7.7	2.9
15	3.9	3.2	5.8	e3.3	9.1	48	18	16	4.4	13	6.3	3.0

16	4.0	3.1	4.9	e3.2	5.2	120	18	13	31	11	5.4	2.7
17	5.7	3.0	4.3	e4.0	5.3	116	100	11	2210	9.6	4.8	2.6
18	4.3	e3.0	3.8	e6.0	184	48	54	10	855	11	6.9	2.8
19	e3.5	e3.0	3.4	e4.2	113	69	36	9.0	89	93	6.4	2.8
20	e3.2	e2.9	e3.3	e3.5	26	1210	29	7.8	46	23	5.0	3.3

21	e3.2	e3.1	e3.3	e3.3	14	334	24	7.4	126	12	4.9	4.4
22	e3.4	e3.5	e3.3	e3.2	11	106	20	7.3	54	8.9	6.7	3.1
23	e4.0	e3.8	e3.2	e3.2	9.4	68	17	9.7	28	7.8	5.5	2.8
24	e4.0	4.1	e3.1	e3.3	17	53	38	9.9	2920	6.5	6.1	2.7
25	e3.5	3.1	e2.8	e3.3	13	42	66	7.7	1600	5.9	5.1	30

26	e3.3	3.1	e2.9	e3.2	286	34	36	12	166	5.6	5.2	21
27	e3.3	3.1	e3.2	e3.2	435	55	64	39	82	5.6	5.5	7.9
28	e3.2	e3.1	4.0	e3.2	78	46	281	35	41	11	4.7	4.6
29	e3.1	e3.1	3.8	e3.2	40	30	84	16	28	194	4.3	3.9
30	e3.5	e3.1	3.7	e3.2	---	24	50	11	20	552	3.9	3.4

31	e3.5	---	3.5	e3.4	---	21	---	9.0	---	84	3.6	---

TOTAL	125.1	94.8	186.8	147.1	1325.7	2738.8	1514	862.8	8381.1	1284.9	886.9	144.0
MEAN	4.04	3.16	6.03	4.75	45.7	88.3	50.5	27.8	279	41.4	28.6	4.80
MAX	13	4.1	40	27	435	1210	281	104	2920	552	470	30
MIN	3.1	2.9	2.7	3.2	3.0	6.4	13	7.3	3.9	5.6	3.6	2.6
CFSM	.05	.04	.08	.06	.59	1.15	.66	.36	3.63	.54	.37	.06
IN.	.06	.05	.09	.07	.64	1.32	.73	.42	4.05	.62	.43	.07

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1986 - 2000, BY WATER YEAR (WY)
MEAN	7.72	96.0	57.6	118	127	143	185	135	56.5	25.8	8.02	17.7
MAX	27.2	542	233	327	383	456	540	809	279	101	28.6	155
(WY)	1994	1994	1991	1993	1986	1989	1996	1995	2000	1993	2000	1993
MIN	2.86	3.16	4.51	4.75	10.4	32.2	40.1	4.46	2.98	2.71	1.65	2.06
(WY)	1996	2000	1990	2000	1996	1987	1995	1988	1991	1991	1990	1995

SUMMARY STATISTICS	FOR 1999 CALENDAR YEAR		FOR 2000 WATER YEAR		WATER YEARS 1986 - 2000
ANNUAL TOTAL	39641.6		17692.0
ANNUAL MEAN	109		48.3		81.0
HIGHEST ANNUAL MEAN					123	1994
LOWEST ANNUAL MEAN					21.3	1987
HIGHEST DAILY MEAN	3420	Feb 7	2920	Jun 24	9940	May 18 1995
LOWEST DAILY MEAN	2.7	A	2.6	B	.15	Sep 29 1989
ANNUAL SEVEN-DAY MINIMUM	2.9	Sep 21	2.9	Sep 13	.38	Dec 11 1989
INSTANTANEOUS PEAK FLOW			4780	Jun 24	16100	May 17 1990
INSTANTANEOUS PEAK STAGE			14.03	Jun 24	17.03	May 17 1990
ANNUAL RUNOFF (CFSM)	1.41		.63		1.05
ANNUAL RUNOFF (INCHES)	19.18		8.56		14.31
10 PERCENT EXCEEDS	163		67		115
50 PERCENT EXCEEDS	9.6		6.4		11
90 PERCENT EXCEEDS	3.1		3.1		2.9

A - Sept. 26, Dec. 8, but may have been less during periods of estimated discharges in October through December.
B - Sept. 9, 17, but may have been less during periods of estimated discharges in October through December.