USGS CD-ROM: Current Year Discharge

05466500 EDWARDS RIVER NEAR NEW BOSTON, IL

LOCATION.--Lat 41°11'15", long 90°58'05", 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.--October 1934 to current year. Monthly discharge only for some periods, published in WSP 1308.

REVISED RECORDS.--WSP 1508: 1935-36(M), 1938-40(M), 1941, 1943. WDR IL-75-1: Drainage area.

GAGE.--Water-stage recorder 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.

REMARKS.--Records good except those for estimated daily discharges, which are poor. U.S. Army Corps of Engineers satellite telemeter at station.

DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	53	143	299	168	362	909	2580	1190	320	1280	130	73
2	51	156	266	245	586	731	2000	1910	303	738	121	68
3	51	146	243	442	691	643	1410	1240	295	589	114	64
4	50	134	243	1000	574	585	1120	902	287	523	111	60
5	50	126	240	1490	510	530	952	771	282	514	140	56

6	47	126	219	1390	455	489	851	719	273	469	150	54
7	46	219	211	1920	414	463	805	843	262	443	123	52
8	46	263	201	1960	388	730	1210	1540	259	506	132	50
9	45	233	196	1400	367	1810	1800	2010	370	480	113	47
10	46	208	196	1010	352	1450	1800	1320	485	454	109	46

11	46	191	193	834	401	953	1330	912	422	379	101	45
12	47	175	179	e720	1420	773	1080	791	794	342	98	44
13	49	165	164	e600	1560	703	1100	732	737	318	88	43
14	48	159	143	e520	966	684	1930	649	572	298	83	181
15	47	155	146	e550	773	624	1860	594	931	278	79	319

16	46	146	188	e460	679	575	1920	576	1380	260	76	190
17	44	134	177	e430	635	691	1770	554	1240	245	82	119
18	43	129	164	e390	598	2100	1280	496	1040	236	263	93
19	43	133	162	e360	539	2390	1060	468	1960	225	672	82
20	44	130	165	e360	494	2700	951	459	1620	213	214	74

21	43	126	167	e340	465	2090	911	462	1110	200	142	69
22	43	123	171	e330	438	1250	1150	440	922	243	115	76
23	43	116	180	e320	421	1000	1020	443	769	696	101	75
24	49	112	187	e310	411	859	859	451	679	398	91	67
25	55	112	200	310	400	771	774	517	608	264	84	66

26	63	112	227	297	394	721	763	452	546	224	79	64
27	71	112	223	288	963	668	724	414	497	201	76	60
28	86	118	201	282	1390	632	636	389	463	183	85	57
29	114	234	264	294	---	659	622	368	600	168	98	63
30	141	327	245	330	---	603	622	354	1390	154	87	63

31	154	---	182	347	---	1980	---	339	---	140	78	---

TOTAL	1804	4763	6242	19697	17646	31766	36890	23305	21416	11661	4035	2420
MEAN	58.2	159	201	635	630	1025	1230	752	714	376	130	80.7
MAX	154	327	299	1960	1560	2700	2580	2010	1960	1280	672	319
MIN	43	112	143	168	352	463	622	339	259	140	76	43
CFSM	.13	.36	.45	1.43	1.42	2.30	2.76	1.69	1.60	.85	.29	.18
IN.	.15	.40	.52	1.65	1.48	2.66	3.08	1.95	1.79	.97	.34	.20

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1935 - 1998, BY WATER YEAR (WY)
MEAN	127	160	175	244	354	503	540	468	416	303	165	129
MAX	791	1192	1469	1133	1280	1791	2307	1762	1829	2258	1508	1006
(WY)	1942	1978	1983	1969	1985	1993	1973	1996	1974	1982	1993	1970
MIN	5.47	11.3	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 1997 CALENDAR YEAR		FOR 1998 WATER YEAR		WATER YEARS 1935 - 1998
ANNUAL TOTAL	69305		181645
ANNUAL MEAN	190		498		298
HIGHEST ANNUAL MEAN					965	1993
LOWEST ANNUAL MEAN					76.6	1940
HIGHEST DAILY MEAN	3840	Feb 23	2700	Mar 20	14000	Apr 22 1973
LOWEST DAILY MEAN	16 A	Jan 21	43	B	1.3	Oct 19 1988
ANNUAL SEVEN-DAY MINIMUM	18	Jan 15	43	Oct 17	2.4	Oct 18 1988
INSTANTANEOUS PEAK FLOW			3100	Mar 31	18000	Apr 22 1973
INSTANTANEOUS PEAK STAGE			21.41	Mar 31	23.33	Apr 22 1973
INSTANTANEOUS LOW FLOW			41	C	1.2	D
ANNUAL RUNOFF (CFSM)	.43		1.12		.67
ANNUAL RUNOFF (INCHES)	5.79		15.18		9.10
10 PERCENT EXCEEDS	290		1240		686
50 PERCENT EXCEEDS	113		319		130
90 PERCENT EXCEEDS	37		60		20

A - Estimated due to backwater from ice.
B - Oct. 18, 19, 21-23, and Sept. 13.
C - Oct. 22, 23 and Sept. 13.
D - Oct. 19-20, 1988.