05567500 DATA: Discharge Tables, 2001

Station list Available data
ILLINOIS RIVER BASIN

05567500 MACKINAW RIVER NEAR CONGERVILLE, IL

LOCATION.-- Lat 40°37'25", long 89°14'30", in NE1/4SW1/4 sec.17, T.25 N., R.1 W., Woodford County, Hydrologic Unit 07130004, on right bank at downstream side of bridge on U.S. Highway 150, 0.2 mi downstream from Walnut Creek, 2 mi northwest of Congerville, and at mile 58.7.

DRAINAGE AREA.-- 767 mi².

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

DISCHARGE: October 1944 to current year.

STAGE: Water years 1994-2001.

SURFACE-WATER QUALITY

SEDIMENT: June 1983 to September 1983.

REVISED RECORDS.-- WSP 1175: 1948. WSP 1308: 1945(M). WDR IL-75-1: Drainage area.

GAGE.-- Water-stage recorder, U.S. Army Corps of Engineers satellite telemeter and rain gage, and crest-stage gage. Datum of gage is 607.01 ft above sea level. Prior to July 11, 1945, nonrecording gage at same site and datum.

REMARKS.-- The City of Bloomington occasionally pumps water upstream from station into Lake Evergreen for municipal supply. The City of Bloomington also withdraws water from Lake Bloomington, which is on Money Creek, a tributary to the Mackinaw River. Water withdrawals are diverted via effluent to Sugar Creek basin.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 44,800 ft³/s, Dec. 4, 1982, gage height, 20.21 ft, from floodmark; minimum, 0.2 ft³/s, Oct. 21-24, Oct. 27 to Nov. 3, 1956, Oct. 6, 1957, Oct. 8-10, 1963.

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

DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2000 TO SEPTEMBER 2001 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	8.2	8.2	25	e17	e1800	1770	454	574	753	184	50	14
2	7.3	8.1	24	e18	e1650	1450	421	547	849	170	46	14
3	6.1	7.6	22	e20	e1300	1220	402	491	740	178	43	12
4	9.9	9.7	22	e21	e1050	1070	371	437	703	228	44	11
5	14	11	19	e21	e860	953	359	424	803	249	43	11

6	22	13	18	e22	e760	840	523	423	2200	194	39	10
7	18	21	18	e22	e1000	763	2170	414	2790	168	34	9.1
8	16	23	19	e22	2060	714	1730	374	2100	154	30	8.6
9	12	46	22	e22	5800	652	1230	354	1590	150	28	12
10	9.6	60	25	e21	6560	596	1400	348	1290	164	31	16

11	9.1	67	22	e22	4170	575	2000	368	1090	152	27	14
12	9.0	46	30	e22	2210	555	2670	351	935	136	23	12
13	8.6	42	22	e24	1710	574	2000	312	815	120	21	10
14	8.0	38	24	e26	1550	550	1510	306	720	109	19	9.2
15	8.4	35	25	e31	1760	546	1280	339	635	97	18	8.7

16	7.7	32	e24	e39	1660	762	1100	318	567	83	22	8.2
17	7.1	30	e22	e36	1340	1270	932	489	493	77	24	7.8
18	7.6	28	e20	e34	1100	1510	815	1100	451	78	25	8.2
19	7.2	26	e19	e32	966	1380	764	1140	412	81	36	17
20	6.9	25	e18	e31	861	1190	740	919	355	80	33	19

21	7.3	23	e17	e30	728	1030	735	786	377	81	28	24
22	6.4	21	e17	e29	654	901	1410	665	396	79	30	21
23	6.3	20	e17	e29	622	805	1600	563	350	82	70	20
24	6.3	20	e17	e28	1110	724	1260	505	303	97	49	16
25	6.6	21	e16	e28	5630	641	1060	450	272	104	39	13

26	6.3	26	e16	e27	5960	587	940	436	247	87	35	12
27	6.3	26	e16	e26	4870	553	836	508	226	74	24	11
28	7.6	26	e16	e26	2360	526	727	563	219	65	21	9.5
29	7.7	26	e16	e100	---	517	642	496	207	57	17	8.5
30	7.7	25	e16	e300	---	495	594	423	196	56	14	7.9

31	8.5	---	e17	e1900	---	473	---	430	---	57	16	---

TOTAL	279.7	810.6	621	3026	62101	26192	32675	15853	23084	3691	979	374.7
MEAN	9.02	27.0	20.0	97.6	2218	845	1089	511	769	119	31.6	12.5
MAX	22	67	30	1900	6560	1770	2670	1140	2790	249	70	24
MIN	6.1	7.6	16	17	622	473	359	306	196	56	14	7.8
CFSM	.01	.04	.03	.13	2.89	1.10	1.42	.67	1.00	.16	.04	.02
IN.	.01	.04	.03	.15	3.01	1.27	1.58	.77	1.12	.18	.05	.02

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1945 - 2001, BY WATER YEAR (WY)
MEAN	191	267	390	463	641	933	1058	894	778	365	176	222
MAX	2765	3340	4062	2808	2218	3157	3136	4216	3322	2687	2734	4330
(WY)	1987	1986	1983	1993	2001	1979	1973	1995	1974	1951	1981	1993
MIN	.59	2.47	2.40	6.01	14.9	32.0	91.7	114	21.6	6.09	1.22	1.84
(WY)	1957	1964	1964	1945	1963	2000	2000	1958	1963	1988	1988	1988

SUMMARY STATISTICS	FOR 2000 CALENDAR YEAR		FOR 2001 WATER YEAR		WATER YEARS 1945 - 2001
ANNUAL TOTAL	32853.1		169687.0
ANNUAL MEAN	89.8		465		530
HIGHEST ANNUAL MEAN					1672	1993
LOWEST ANNUAL MEAN					78.2	1989
HIGHEST DAILY MEAN	1490	May 28	6560	Feb 10	34000	Dec 4 1982
LOWEST DAILY MEAN	3.1	Sep 9-11	6.1	Oct 3	.20	A
ANNUAL SEVEN-DAY MINIMUM	3.5	Sep 5	6.5	Oct 21	.20	Oct 27 1956
MAXIMUM PEAK FLOW			7230	Feb 10	44800	Dec 4 1982
MAXIMUM PEAK STAGE			12.70	Feb 10	20.21 B	Dec 4 1982
INSTANTANEOUS LOW FLOW			5.4	Oct 3	0.20 C
ANNUAL RUNOFF (CFSM)	.12		.61		.69
ANNUAL RUNOFF (INCHES)	1.59		8.23		9.39
10 PERCENT EXCEEDS	242		1280		1280
50 PERCENT EXCEEDS	22		65		180
90 PERCENT EXCEEDS	7.1		9.4		12

	A - Oct. 21-24, Oct. 27 to Nov. 3, 1956.
	B - From floodmark.
	C - Oct. 21-24, Oct. 27 to Nov. 3, 1956; Oct. 6, 1957; Oct. 8-10, 1963.