05469000 DATA: Discharge Tables, 2002

Station list Available data
HENDERSON CREEK BASIN

05469000 HENDERSON CREEK NEAR OQUAWKA, IL


LOCATION.-- Lat 41°00'05", long 90°51'15" (NAD of 1927), in NE1/4SW1/4 sec.28, T.12 N., R.4 W., Henderson County, Hydrologic Unit 07080104, on left bank at downstream side of bridge on State Highway 94, 1 mi south of Bald Bluff, 6.5 mi northeast of Oquawka, and at mile 20.8.

DRAINAGE AREA.-- 432 mi².

PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE
	DISCHARGE: October 1934 to September 1996. October 1997 to current year. Prior to October 1938, published as Henderson River. Monthly discharge only for some periods, published in WSP 1308.
	STAGE: Water years 1994-1996;1998-2002.
SURFACE-WATER QUALITY
	CHEMICAL: Water years 1978 to 1991. Additional chemical data for water years 1972-77 are published in Water-Resources Investigations 78-23 and 79-24 as site LD 02.
	SEDIMENT: April 1978 to September 1981.

REVISED RECORDS.-- WSP 1208: 1939, 1942-43, 1948. WSP 1308: 1935-38(M), 1941(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 541.21 ft above NGVD of 1929 (levels by U.S. Army Corps of Engineers). Prior to Mar. 4, 1941, nonrecording gage at same site and datum.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 34,600 ft³/s, July 8, 1982, gage height, 31.05 ft; maximum gage height, 32.65 ft, July 25, 1993, discharge 30,800 ft³/s; minimum daily observed, 1.7 ft³/s, Sept. 22, 23, 1940.
SUSPENDED-SEDIMENT CONCENTRATIONS: Maximum daily mean, 7,070 mg/L May 27, 1981; minimum daily mean, 6 mg/L Feb. 10, 11, 1981.
SUSPENDED-SEDIMENT LOADS: Maximum daily, 33,900 tons Apr. 14, 1981; minimum daily, 0.87 tons Feb. 2-4, 1980.

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

DISCHARGE, in CFS, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	36	76	67	e52	156	e212	209	663	640	335	106	73
2	34	73	64	e51	97	e200	220	624	594	312	93	65
3	32	70	60	e51	98	e170	218	549	572	296	83	58
4	35	64	58	e52	72	e240	190	489	1270	280	77	55
5	77	60	57	e53	89	e270	183	456	3570	263	80	49

6	96	59	59	e54	77	e235	181	447	1840	288	94	44
7	56	60	63	e56	77	e220	214	432	999	328	76	44
8	40	61	60	e58	75	498	617	397	817	269	64	43
9	34	57	57	e60	73	851	1760	474	718	239	59	39
10	35	58	56	e63	104	722	1220	464	662	222	55	36

11	41	56	56	e62	177	591	916	1090	855	251	51	34
12	53	54	56	e60	191	520	772	4250	1060	320	48	32
13	53	54	72	e57	169	461	669	4850	3350	240	49	31
14	65	42	116	e55	185	421	605	2380	5920	203	50	31
15	81	49	91	e53	204	386	556	1360	2920	182	47	39

16	64	48	78	e51	196	336	497	1130	1360	167	49	43
17	59	47	75	e50	187	313	450	1020	1060	157	46	42
18	50	48	74	e49	168	308	418	893	910	149	42	43
19	43	58	71	e52	179	290	396	799	797	276	118	41
20	40	47	66	e54	361	287	363	724	722	212	179	44

21	39	54	64	e56	581	268	435	669	656	157	80	45
22	43	50	73	e58	453	233	512	631	608	133	60	44
23	278	48	e85	e58	380	254	430	679	561	119	1000	42
24	252	68	e100	e56	339	252	428	1180	519	109	868	44
25	196	126	e110	53	302	239	498	2260	485	102	290	38

26	153	111	e90	59	265	228	446	3120	476	99	177	38
27	118	82	e82	55	221	227	507	1320	472	327	147	37
28	108	85	e76	56	e218	228	1120	1030	425	432	114	36
29	92	71	e72	55	---	232	896	876	384	206	93	36
30	84	70	e65	56	---	235	737	768	360	160	85	34

31	82	---	e57	96	---	218	---	691	---	128	79	---

TOTAL	2469	1906	2230	1751	5694	10145	16663	36715	35582	6961	4459	1280
MEAN	79.65	63.53	71.94	56.48	203.4	327.3	555.4	1184	1186	224.5	143.8	42.67
MAX	278	126	116	96	581	851	1760	4850	5920	432	1000	73
MIN	32	42	56	49	72	170	181	397	360	99	42	31
CFSM	0.18	0.15	0.17	0.13	0.47	0.76	1.29	2.74	2.75	0.52	0.33	0.10
IN.	0.21	0.16	0.19	0.15	0.49	0.87	1.43	3.16	3.06	0.60	0.38	0.11

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1935 - 2002, BY WATER YEAR (WY)
MEAN	151.3	177.4	179.8	245.2	376.1	458.6	502.0	485.0	470.5	313.4	144.8	132.1
MAX	1560	1189	1176	1265	1473	1752	1742	1829	1960	2967	1675	1222
(WY)	1942	1978	1983	1969	2001	1979	1973	1996	1974	1982	1993	1970
MIN	7.10	9.89	8.38	4.45	13.5	47.4	33.4	26.9	31.3	6.58	9.61	5.65
(WY)	1938	1938	1964	1940	1989	1956	1956	1989	1940	1936	1936	1940

SUMMARY STATISTICS	FOR 2001 CALENDAR YEAR		FOR 2002 WATER YEAR		WATER YEARS 1935 - 2002
ANNUAL TOTAL	159348		125855
ANNUAL MEAN	436.6		344.8		302.6
HIGHEST ANNUAL MEAN					1002	1993
LOWEST ANNUAL MEAN					50.9	1989
HIGHEST DAILY MEAN	5880 A	Feb 25	5920	Jun 14	25800	Jul 25 1993
LOWEST DAILY MEAN	17	Sep 5	31	Sep 13,14	1.7 B	C
ANNUAL SEVEN-DAY MINIMUM	22	Aug 30	35	Sep 9	2.1	Sep 17 1940
MAXIMUM PEAK FLOW			6530	Jun 14	34600 D	Jul 8 1982
MAXIMUM PEAK STAGE			25.56	Jun 14	32.65 E	Jul 25 1993
INSTANTANEOUS LOW FLOW			4.1 F	Nov 14
ANNUAL RUNOFF (CFSM)	1.01		0.80		0.70
ANNUAL RUNOFF (INCHES)	13.72		10.84		9.52
10 PERCENT EXCEEDS	1100		798		678
50 PERCENT EXCEEDS	118		116		128
90 PERCENT EXCEEDS	40		44		19

	A - Estimated.
	B - Observed.
	C - Sept. 22, 23, 1940.
	D - Gage Height, 31.05 ft.
	E - Discharge, 30,800 ft³/s.
	F - Result of temporary dam upstream.