05466500 DATA: Discharge Tables, 2001

Station list Available data
EDWARDS RIVER BASIN

05466500 EDWARDS RIVER NEAR NEW BOSTON, IL

LOCATION.-- Lat 41°11'13", long 90°58'02", at quarter corner between secs.21 and 28, T.14 N., R.5 W., Mercer County, Hydrologic Unit 07080104, on left bank at downstream side of bridge on State Highway 17, 1.5 mi northeast of New Boston, and at mile 4.6.

DRAINAGE AREA.-- 445 mi².

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

DISCHARGE: October 1934 to current year. Monthly discharge only for some periods, published in WSP 1308.

STAGE: Water years 1994-2001.

SURFACE-WATER QUALITY

CHEMICAL: Water years 1978-91. Additional chemical data for water years 1959, 1971-77 are published in Water-Resources Investigations 78-23 and 79-24 as site LF 01.

SEDIMENT: January 1979 to September 1981.

REVISED RECORDS.-- WSP 1508: 1935-36(M), 1938-40(M), 1941, 1943. 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 529.92 ft above sea level (levels by U.S. Army Corps of Engineers). Prior to Mar. 1, 1941, nonrecording gage at same site and datum.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 18,000 ft³/s, Apr. 22, 1973, gage height, 23.33 ft; minimum, 1.2 ft³/s, Oct. 19, 20, 1988.
SUSPENDED-SEDIMENT CONCENTRATIONS: Maximum daily mean, 11,600 mg/L May 29, 1980; minimum daily mean, 9 mg/L Feb. 15, 1981.
SUSPENDED-SEDIMENT LOADS: Maximum daily, 75,400 tons Apr. 14, 1981; minimum daily, 1.4 tons Oct. 12, 13, 1979.

REMARKS FOR CURRENT YEAR.-- Records good except those for April 19 - June 8, which are fair, and 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	90	92	98	e72	e560	1210	389	528	1810	310	94	40
2	85	90	95	e73	e450	916	370	505	1680	292	92	39
3	83	90	91	e74	e390	e780	348	475	1220	288	106	38
4	171	87	87	e75	e350	e660	329	628	995	314	110	37
5	297	86	68	e76	e310	e600	328	704	2110	464	92	36

6	246	93	e85	e77	e290	561	748	951	3050	312	82	36
7	188	111	e90	e77	e280	514	1860	1460	3400	276	77	44
8	161	119	e88	e78	e300	484	1330	992	4060	264	72	53
9	147	118	e84	e78	e2100	451	888	740	3850	259	70	56
10	137	140	e78	e79	3240	425	772	646	2860	255	66	53

11	132	162	e72	e78	4120	460	683	1470	1730	230	64	71
12	126	140	e85	78	3820	483	925	1740	1250	209	61	56
13	120	129	e95	77	2410	502	974	1280	1040	195	57	44
14	116	124	e102	86	e1600	492	736	1190	927	184	55	42
15	114	120	e98	107	1580	517	1230	1600	894	174	55	37

16	110	115	e95	135	1230	1300	1810	1220	791	165	57	35
17	106	113	e91	e152	865	1500	1420	1980	679	158	56	35
18	105	108	e88	e130	e700	1350	1040	1890	618	157	62	40
19	102	99	e80	e115	e630	1330	887	1380	570	164	69	111
20	100	96	e76	e105	e590	1250	774	1120	534	161	81	93

21	99	92	e73	e100	e550	1060	696	2580	571	149	64	156
22	99	106	e70	e95	e510	904	1230	1810	572	199	56	65
23	98	119	e69	93	e470	784	1770	1210	502	176	53	57
24	97	111	e67	e88	1300	686	1370	1000	459	150	54	54
25	96	107	e66	e84	3680	599	975	883	427	155	55	51

26	96	108	e66	e80	3700	536	825	1120	399	136	55	47
27	e94	110	e67	e78	4070	504	725	1730	376	126	52	43
28	e93	100	e68	e76	2250	476	652	1370	358	118	49	40
29	e92	106	e69	e90	---	456	594	1020	342	114	45	39
30	91	100	e70	e300	---	432	555	863	326	109	44	38

31	91	---	e71	e700	---	408	---	941	---	101	42	---

TOTAL	3782	3291	2502	3606	42345	22630	27233	37026	38400	6364	2047	1586
MEAN	122	110	80.7	116	1512	730	908	1194	1280	205	66.0	52.9
MAX	297	162	102	700	4120	1500	1860	2580	4060	464	110	156
MIN	83	86	66	72	280	408	328	475	326	101	42	35
CFSM	.27	.25	.18	.26	3.40	1.64	2.04	2.68	2.88	.46	.15	.12
IN.	.32	.28	.21	.30	3.54	1.89	2.28	3.10	3.21	.53	.17	.13

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1935 - 2001, BY WATER YEAR (WY)
MEAN	142	171	176	245	375	501	552	481	440	304	162	127
MAX	1216	1192	1469	1133	1512	1791	2307	1762	1829	2258	1508	1006
(WY)	1999	1978	1983	1969	2001	1993	1973	1996	1974	1982	1993	1970
MIN	5.47	11.2	8.86	6.39	11.9	66.0	33.4	33.0	35.8	11.7	10.3	7.29
(WY)	1989	1938	1964	1977	1989	1956	1956	1989	1977	1936	1988	1988

SUMMARY STATISTICS	FOR 2000 CALENDAR YEAR		FOR 2001 WATER YEAR		WATER YEARS 1935 - 2001
ANNUAL TOTAL	101456		190812
ANNUAL MEAN	277		523		306
HIGHEST ANNUAL MEAN					965	1993
LOWEST ANNUAL MEAN					76.6	1940
HIGHEST DAILY MEAN	2730	Apr 21	4120	Feb 11	14000	Apr 22 1973
LOWEST DAILY MEAN	54	A	35	Sep 16, 17	1.3	Oct 19 1988
ANNUAL SEVEN-DAY MINIMUM	57	Sep 5	38	Aug 31	2.4	Oct 18 1988
MAXIMUM PEAK FLOW			5100 B	Feb 11	18000	Apr 22 1973
MAXIMUM PEAK STAGE			22.40 C	Feb 27	23.33	Apr 22 1973
INSTANTANEOUS LOW FLOW			34	Sep 16-18	1.2	D
ANNUAL RUNOFF (CFSM)	.62		1.17		.69
ANNUAL RUNOFF (INCHES)	8.48		15.95		9.33
10 PERCENT EXCEEDS	596		1370		702
50 PERCENT EXCEEDS	136		152		131
90 PERCENT EXCEEDS	70		56		21

	A - Jan. 29, estimated due to backwater from ice; Sept. 10-11.
	B - Gage height, 22.38 ft.
	C - Discharge, 4,640 ft³/s.
	D - Oct. 19-20, 1998.