05578500 DATA: Discharge Tables, 2000

Station list Available data
ILLINOIS RIVER BASIN

05578500 SALT CREEK NEAR ROWELL, IL

LOCATION.-- Lat 40°06'54", long 89°02'57", in NE1/4SE1/4 sec.11, T.19 N., R.1 E., De Witt County, Hydrologic Unit 07130009, on right bank at downstream side of bridge on County Road 490 E, 0.5 mi upstream from State Highway 54, 0.8 mi upstream from a railroad bridge and Ten Mile Creek, 3.2 mi northwest of Rowell, and at mile 65.3.

DRAINAGE AREA.-- 335 mi².

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

DISCHARGE: October 1942 to current year.

STAGE: Water years 1994-2000.

SURFACE-WATER QUALITY

CHEMICAL: Water years 1978-91.

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

GAGE.-- Water-stage recorder and phone telemeter. Datum of gage is 610.00 ft above sea level (U.S. Army Corps of Engineers bench mark).

REMARKS.-- Beginning Oct. 12, 1977, flow partially regulated by Clinton Reservoir, 11 mi upstream from gage.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 24,500 ft³/s, May 16, 1968, gage height, 29.21 ft; maximum discharge after Clinton Reservoir Oct. 1977, 7,810 ft³/s, Apr. 13, 1994, gage height 24.04 ft; minimum daily discharge, 0.7 ft³/s, Oct. 4, 1954.

REMARKS FOR CURRENT YEAR.-- Remarks good 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	9.5	21	17	15	e12	20	18	84	193	275	18	13
2	9.8	22	17	15	e12	19	19	95	172	243	17	12
3	12	21	17	16	e12	17	19	97	164	216	17	13
4	23	23	18	18	e13	16	18	89	151	206	16	13
5	14	22	41	15	e13	16	17	81	182	397	25	16

6	12	21	27	14	e13	15	16	80	161	304	25	15
7	12	20	18	14	e13	15	17	73	135	256	18	13
8	15	20	16	14	e14	15	21	74	111	210	16	11
9	22	20	15	15	e14	15	17	75	93	173	16	11
10	21	20	19	15	e15	15	15	82	82	153	15	11

11	16	19	16	14	e16	14	35	82	76	267	14	11
12	13	19	16	14	e16	15	28	78	107	187	14	14
13	14	19	15	14	16	15	22	164	160	158	15	12
14	14	19	16	13	15	15	21	107	142	133	14	11
15	14	19	18	13	14	15	20	90	122	113	13	11

16	16	19	18	13	14	16	22	81	107	99	13	11
17	21	18	17	13	14	15	40	74	100	83	14	10
18	18	19	16	13	60	13	33	67	93	71	22	10
19	17	18	16	e12	61	24	28	68	78	73	14	10
20	17	18	15	e12	39	63	142	82	118	54	13	11

21	16	18	e14	e11	31	52	161	86	722	44	13	11
22	16	18	e14	e10	27	38	105	81	405	38	14	11
23	17	19	e14	e9.7	25	33	81	84	413	35	16	11
24	17	21	e14	e9.3	24	31	146	92	665	32	20	16
25	21	19	e14	e9.0	22	29	129	85	662	25	14	16

26	17	25	e13	e9.2	21	26	96	78	598	22	14	15
27	16	18	e13	e9.4	24	26	85	173	511	21	13	12
28	17	16	e14	e9.7	21	25	89	188	432	20	17	10
29	18	17	e14	e10	20	23	90	205	362	19	17	10
30	19	17	e15	e11	---	20	93	208	313	20	15	10

31	20	---	15	e11	---	19	---	199	---	23	16	---

TOTAL	504.3	585	522	391.3	611	690	1643	3202	7630	3970	498	361
MEAN	16.3	19.5	16.8	12.6	21.1	22.3	54.8	103	254	128	16.1	12.0
MAX	23	25	41	18	61	63	161	208	722	397	25	16
MIN	9.5	16	13	9.0	12	13	15	67	76	19	13	10

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1978 - 2000, BY WATER YEAR (WY)
MEAN	121	169	249	222	309	556	506	523	354	238	138	61.0
MAX	1069	1236	1268	1316	975	2129	1704	1648	850	1370	1576	658
(WY)	1994	1986	1983	1993	1982	1982	1979	1995	1999	1981	1981	1993
MIN	8.31	9.77	12.1	11.0	14.9	22.3	54.8	45.2	13.7	8.51	6.57	5.46
(WY)	1989	1989	1996	1980	1989	2000	2000	1988	1988	1988	1988	1988

SUMMARY STATISTICS	FOR 1999 CALENDAR YEAR		FOR 2000 WATER YEAR		WATER YEARS 1978 - 2000
ANNUAL TOTAL	94273.1		20607.6
ANNUAL MEAN	258		56.3		287
HIGHEST ANNUAL MEAN					601	1993
LOWEST ANNUAL MEAN					56.3	2000
HIGHEST DAILY MEAN	2020	Jun 25	722	Jun 21	6960	Apr 13 1994
LOWEST DAILY MEAN	6.0	Sep 27	9.0 A	Jan 25	3.7	Sep 8 1988
ANNUAL SEVEN-DAY MINIMUM	6.6	Sep 21	9.5	Jan 22	4.1	Sep 4 1988
INSTANTANEOUS PEAK FLOW			1060	Jun 21	7810	Apr 13 1994
INSTANTANEOUS PEAK STAGE			16.81	Jun 21	24.04	Apr 13 1994
INSTANTANEOUS LOW FLOW			B
10 PERCENT EXCEEDS	719		152		727
50 PERCENT EXCEEDS	61		18		116
90 PERCENT EXCEEDS	12		12		11

A - Estimated due to backwater from ice.
B - Minimum unknown; probably occurred during period of ice effect, Jan. 19-Feb. 12.