05584500 DATA: Discharge Tables, 2000

Station list Available data
ILLINOIS RIVER BASIN

05584500 LA MOINE RIVER AT COLMAR, IL

LOCATION.-- Lat 40°19'49", long 90°53'46", in SE1/4SW1/4 sec.18, T.4 N., R.4 W., McDonough County, Hydrologic Unit 07130010, on right bank at downstream side of bridge on State Highway 61, 0.2 mi downstream from a railroad bridge, 1 mi southwest of Colmar, 1.8 mi upstream from Troublesome Creek, and at mile 61.8.

DRAINAGE AREA.-- 655 mi².

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

DISCHARGE: October 1944 to current year.

STAGE: Water years 1994-2000.

SURFACE-WATER QUALITY

CHEMICAL: Water years 1975-91 and 1998.

MISCELLANEOUS: Contaminants in streambed sediments, July 1997; contaminants in fish tissue, July 1997; streambank sediment size, October 1997; streambed sediment size, October 1997.

BIOLOGICAL: Benthic macroinvertebrates, September 1996, September 1997, and September 1998; fish, July 1997 and July 1998.

GAGE.-- Water-stage recorder, U.S. Army Corps of Engineers satellite telemeter and rain gage, and crest-stage gage. Datum of gage is 491.53 ft above sea level. Prior to July 13, 1945, nonrecording gage at same site and datum.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 38,900 ft³/s, Mar. 5, 1985, gage height, 26.61 ft; maximum gage height, 27.03 ft, Jan. 3, 1965 (ice jam); no flow part of each day Dec. 8, 9, 12, 13, 17, 21, 1955, due to temporary dam upstream; no flow Oct. 19, 1988.

REMARKS FOR CURRENT YEAR.-- Records 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	236	29	26	75	e45	561	192	125	155	633	144	16
2	135	30	25	77	e47	564	186	125	158	518	150	15
3	107	29	25	78	e48	461	187	134	141	812	112	14
4	137	29	27	80	e49	402	185	120	123	748	93	13
5	177	27	50	80	e51	363	173	111	130	1940	83	12

6	146	27	110	88	e53	326	160	106	262	2540	78	11
7	109	28	132	73	e55	292	163	103	211	1670	76	9.8
8	90	31	95	71	e57	270	159	104	169	924	90	10
9	76	30	89	71	61	252	159	114	151	637	89	9.9
10	70	29	168	78	64	241	143	276	137	518	77	9.9

11	63	28	183	90	71	214	143	325	138	805	65	9.0
12	57	29	133	85	82	202	148	263	146	1560	55	9.2
13	50	30	107	79	89	196	140	227	156	1210	49	12
14	45	29	97	73	76	190	126	188	265	720	46	15
15	43	29	91	83	73	190	127	158	549	505	43	11

16	42	31	94	74	71	213	130	144	678	407	41	14
17	41	29	94	74	67	239	155	145	486	346	37	11
18	42	29	85	67	120	211	168	151	417	302	32	11
19	40	28	76	51	238	203	145	150	312	289	28	9.6
20	38	28	67	e54	319	311	142	129	368	266	26	9.3

21	36	28	61	e58	240	377	199	112	1170	234	25	9.6
22	33	28	e58	e55	205	359	264	110	905	211	24	16
23	32	28	e55	e52	188	315	203	115	543	189	25	17
24	32	29	e53	e49	193	292	181	135	1420	171	25	51
25	31	31	e54	e46	240	295	172	148	3360	157	23	131

26	30	31	e55	e43	1260	267	154	119	5550	145	22	92
27	30	31	e57	e42	1370	249	139	147	5690	137	22	68
28	31	29	e59	e41	917	293	143	257	4590	130	20	55
29	32	27	e61	e40	636	266	146	241	1700	121	18	39
30	34	26	65	e40	---	227	134	188	873	116	17	30

31	32	---	69	e43	---	205	---	165	---	122	17	---

TOTAL	2097	867	2421	2010	6985	9046	4866	4935	30953	19083	1652	740.3
MEAN	67.6	28.9	78.1	64.8	241	292	162	159	1032	616	53.3	24.7
MAX	236	31	183	90	1370	564	264	325	5690	2540	150	131
MIN	30	26	25	40	45	190	126	103	123	116	17	9.0
CFSM	.10	.04	.12	.10	.37	.45	.25	.24	1.58	.94	.08	.04
IN.	.12	.05	.14	.11	.40	.51	.28	.28	1.76	1.08	.09	.04

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1945 - 2000, BY WATER YEAR (WY)
MEAN	263	266	269	348	512	722	827	748	685	468	159	264
MAX	3502	2693	2686	2077	2199	3734	3193	4471	3081	4194	899	4024
(WY)	1987	1986	1983	1974	1949	1985	1973	1995	1974	1993	1993	1961
MIN	.67	2.61	2.54	3.33	5.70	30.5	22.9	20.8	21.1	3.89	2.82	1.75
(WY)	1989	1990	1990	1956	1989	1956	1956	1956	1988	1988	1988	1988

SUMMARY STATISTICS	FOR 1999 CALENDAR YEAR		FOR 2000 WATER YEAR		WATER YEARS 1945 - 2000
ANNUAL TOTAL	163408.9		85655.3
ANNUAL MEAN	448		234		460
HIGHEST ANNUAL MEAN					1347	1993
LOWEST ANNUAL MEAN					23.1	1989
HIGHEST DAILY MEAN	4790	Apr 17	5690	Jun 27	35600	Mar 5 1985
LOWEST DAILY MEAN	7.4	Sep 27	9.0	Sep 11	.00	Oct 19 1988
ANNUAL SEVEN-DAY MINIMUM	8.4	Sep 14	9.8	Sep 6	.12	Oct 16 1988
INSTANTANEOUS PEAK FLOW			6300	Jun 26	38900 A	Mar 5 1985
INSTANTANEOUS PEAK STAGE			21.34	Jun 26	27.03 B	Jan 3 1965
INSTANTANEOUS LOW FLOW			8.2	Sep 20
ANNUAL RUNOFF (CFSM)	.68		.36		.70
ANNUAL RUNOFF (INCHES)	9.28		4.86		9.54
10 PERCENT EXCEEDS	1170		410		1000
50 PERCENT EXCEEDS	170		96		125
90 PERCENT EXCEEDS	26		26		9.9

A - Gage height, 26.61 ft.
B - Ice jam.