05466500 DATA: Discharge Tables, 2000

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 1994-2000.

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 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	177	54	45	e87	e58	699	152	467	1060	512	181	70
2	129	54	45	95	e61	597	152	444	990	476	165	66
3	111	53	50	106	e63	501	153	407	596	543	152	63
4	115	53	51	97	e65	452	147	381	495	1250	141	62
5	130	53	67	73	e68	414	142	361	453	2100	135	63

6	119	53	101	88	e69	375	138	340	409	1450	195	60
7	104	52	124	86	e71	342	138	326	362	860	414	58
8	93	52	99	83	e72	321	e136	315	334	676	362	56
9	86	53	90	90	e72	301	e140	346	311	584	239	55
10	81	51	142	112	e74	276	144	472	286	786	202	54

11	76	51	188	127	e80	252	148	508	298	702	166	54
12	73	51	152	120	e88	244	145	447	373	556	148	65
13	69	51	134	100	e83	236	135	394	400	486	141	72
14	68	51	123	80	e80	228	129	346	1220	434	135	74
15	67	50	115	100	e84	220	129	317	1270	391	128	95

16	69	50	109	99	e89	212	130	307	799	357	119	100
17	68	50	103	83	e95	198	206	302	594	330	111	71
18	65	50	88	e70	e103	189	189	297	499	309	105	61
19	62	49	e83	e64	e110	199	209	339	444	296	101	56
20	62	49	e75	e76	e105	e210	1500	436	410	280	97	60

21	61	48	e78	e88	e100	223	2730	313	391	262	94	67
22	60	48	e82	e81	e125	212	2530	289	379	244	90	84
23	60	50	e76	e77	470	197	2010	276	360	228	89	136
24	60	51	e70	e73	837	199	1170	259	914	214	89	166
25	58	54	e67	e71	715	199	914	235	1790	203	86	208

26	57	52	e66	e68	1880	e190	768	223	1990	203	82	188
27	58	50	e68	e64	1710	184	674	250	1230	204	79	147
28	57	48	e78	e59	1050	182	612	251	799	187	79	121
29	56	46	e73	e54	745	174	556	233	670	177	82	106
30	55	45	e77	e55	---	163	503	218	584	174	83	97

31	54	---	e82	e56	---	155	---	1240	---	180	76	---

TOTAL	2460	1522	2801	2582	9222	8544	16829	11339	20710	15654	4366	2635
MEAN	79.4	50.7	90.4	83.3	318	276	561	366	690	505	141	87.8
MAX	177	54	188	127	1880	699	2730	1240	1990	2100	414	208
MIN	54	45	45	54	58	155	129	218	286	174	76	54
CFSM	.18	.11	.20	.19	.71	.62	1.26	.82	1.55	1.13	.32	.20
IN.	.21	.13	.23	.22	.77	.71	1.41	.95	1.73	1.31	.36	.22

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1935 - 2000, BY WATER YEAR (WY)
MEAN	142	172	178	247	358	497	547	471	427	305	164	128
MAX	1216	1192	1469	1133	1280	1791	2307	1762	1829	2258	1508	1006
(WY)	1999	1978	1983	1969	1985	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 1999 CALENDAR YEAR		FOR 2000 WATER YEAR		WATER YEARS 1935 - 2000
ANNUAL TOTAL	146583		98664
ANNUAL MEAN	402		270		302
HIGHEST ANNUAL MEAN					965	1993
LOWEST ANNUAL MEAN					76.6	1940
HIGHEST DAILY MEAN	2710	Jun 16	2730	Apr 21	14000	Apr 22 1973
LOWEST DAILY MEAN	29	Sep 25, 26	45	A	1.3	Oct 19 1988
ANNUAL SEVEN-DAY MINIMUM	32	Sep 21	47	Nov 27	2.4	Oct 18 1988
INSTANTANEOUS PEAK FLOW			2970	Apr 21	18000	Apr 22 1973
INSTANTANEOUS PEAK STAGE			21.30	Apr 21	23.33	Apr 22 1973
INSTANTANEOUS LOW FLOW			42	Dec 2	1.2	B
ANNUAL RUNOFF (CFSM)	.90		.61		.68
ANNUAL RUNOFF (INCHES)	12.25		8.25		9.23
10 PERCENT EXCEEDS	1000		596		698
50 PERCENT EXCEEDS	245		130		131
90 PERCENT EXCEEDS	50		54		21

A - Nov. 30 - Dec. 2.
B - Oct. 19-20, 1998.