05466500 DATA: Discharge Tables, 2003

Station list Available data
EDWARDS RIVER BASIN

05466500 EDWARDS RIVER NEAR NEW BOSTON, IL


LOCATION.-- Lat 41°11'13", long 90°58'02" (NAD of 1927), 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 to current year.
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 crest-stage gage. Datum of gage is 529.92 ft above NGVD of 1929 (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 Oct. 1 - Nov. 20, which are fair, and those for estimated daily discharges, which are poor.

Discharge, cubic feet per second, WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	49	43	31	e40	e24	e31	74	3510	252	153	111	26
2	57	41	38	e42	e26	e28	69	4070	234	146	100	25
3	61	40	30	e37	e29	e26	67	4280	235	141	69	29
4	95	40	e29	e33	e33	e28	68	2750	238	134	62	27
5	149	40	e28	e39	e37	e31	69	3100	227	127	59	25

6	92	41	e29	e36	e35	e29	68	2800	229	120	55	21
7	70	40	e27	e36	e31	e28	71	2470	251	116	51	19
8	61	40	e26	e38	e29	e28	73	1600	250	117	47	19
9	54	40	e26	e34	e27	e28	72	2380	282	136	44	18
10	50	40	e26	e33	e25	e29	71	2600	288	234	41	18

11	47	39	e25	e41	e24	e31	69	2900	306	310	41	17
12	44	38	e25	e38	e23	e55	66	2090	274	213	40	18
13	42	38	e27	e33	e23	302	63	1200	247	159	40	29
14	40	38	e29	e29	e22	376	60	934	231	137	39	46
15	39	39	e32	e27	e22	279	57	923	216	122	37	47

16	36	36	e34	e26	e22	262	56	934	201	111	35	35
17	36	37	37	e25	e22	253	65	693	191	103	33	26
18	37	37	62	e24	e22	202	101	608	184	96	31	21
19	36	38	100	e23	e23	157	95	552	179	91	29	20
20	35	37	91	e22	e24	135	98	510	170	86	28	19

21	35	36	83	e21	e27	121	116	463	161	101	28	19
22	34	36	66	e21	e31	108	107	421	156	180	26	20
23	34	36	48	e20	e42	97	94	399	152	164	25	20
24	37	36	e35	e20	e54	88	87	381	148	103	24	23
25	45	35	e43	e19	e48	83	88	359	172	87	23	21

26	50	34	53	e19	e40	79	84	333	343	79	23	21
27	48	32	49	e19	e35	75	78	309	240	73	22	20
28	45	33	48	e19	e33	79	75	293	196	72	21	18
29	44	34	49	e20	---	92	81	290	174	70	21	18
30	43	32	53	e21	---	88	307	278	163	68	21	18

31	43	---	e47	e22	---	81	---	265	---	64	22	---

TOTAL	1588	1126	1326	877	833	3329	2549	44695	6590	3913	1248	703
MEAN	51.2	37.5	42.8	28.3	29.8	107	85.0	1442	220	126	40.3	23.4
MAX	149	43	100	42	54	376	307	4280	343	310	111	47
MIN	34	32	25	19	22	26	56	265	148	64	21	17
CFSM	0.12	0.08	0.10	0.06	0.07	0.24	0.19	3.24	0.49	0.28	0.09	0.05
IN.	0.13	0.09	0.11	0.07	0.07	0.28	0.21	3.74	0.55	0.33	0.10	0.06

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1935 - 2003, BY WATER YEAR (WY)
MEAN	140	168	173	240	368	493	546	503	447	301	161	124
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 2002 CALENDAR YEAR		FOR 2003 WATER YEAR		WATER YEARS 1935 - 2003
ANNUAL TOTAL	124641		68777
ANNUAL MEAN	341		188		305
HIGHEST ANNUAL MEAN					965	1993
LOWEST ANNUAL MEAN					76.6	1940
HIGHEST DAILY MEAN	3870	May 14	4280	May 3	14000	Apr 22 1973
LOWEST DAILY MEAN	25 A	Dec 11, 12	17	Sep 11	1.3	Oct 19 1988
ANNUAL SEVEN-DAY MINIMUM	26	Dec 7	19	Sep 6	2.4	Oct 18 1988
MAXIMUM PEAK FLOW			4700	May 3	18000	Apr 22 1973
MAXIMUM PEAK STAGE			22.52	May 3	23.33	Apr 22 1973
INSTANTANEOUS LOW FLOW			14 B	Dec 1, 3	1.2	C
ANNUAL RUNOFF (CFSM)	0.77		0.42		0.68
ANNUAL RUNOFF (INCHES)	10.42		5.75		9.30
10 PERCENT EXCEEDS	746		284		700
50 PERCENT EXCEEDS	149		44		130
90 PERCENT EXCEEDS	37		22		21

	A - Estimated due to backwater from ice.
	B - Due to freezeup.
	C - Oct. 19-20, 1998.