05467000 DATA: Discharge Tables, 2004

Station list Available data
POPE CREEK BASIN

05467000 POPE CREEK NEAR KEITHSBURG, IL


LOCATION.-- Lat 41°07'44", long 90°55'09" (NAD of 1927), in SE1/4SE1/4 sec.11, T.13 N., R.5 W., Mercer County, Hydrologic Unit 07080104, on right bank at downstream side of bridge on County Road 900 E, 1.8 mi northeast of Keithsburg, and at mile 3.0.

DRAINAGE AREA.-- 174 mi².

PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE
	DISCHARGE: October 1934 to September 1986. Monthly discharge only for some periods, published in WSP 1308. Seven-month period (March to September), water years 1987-90. October 1990 to September 1996. October 1997 to current year.
	STAGE: Water years 1994-1996;1998 to current year.

REVISED RECORDS.-- WSP 1508: 1935-37(M), 1938, 1939-43(M). WDR IL-81-1: Drainage area.

GAGE.-- Water-stage recorder, U.S. Army Corps of Engineers satellite telemeter, and crest-stage gage. Datum of gage is 524.07 ft above NGVD of 1929 (levels by U.S. Army Corps of Engineers). Prior to Aug. 1, 1975, nonrecording gage and crest-stage gage at site 1,000 ft upstream at same datum. Aug. 1, 1975 to Aug. 24, 1981, water-stage recorder at site 500 ft downstream at same datum.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 8,900 ft³/s, Apr. 22, 1973, gage height, 27.88 ft, from graph based on gage readings at site 1,000 ft upstream at same datum; maximum gage height, 29.25 ft, Feb. 9, 2001, estimated discharge, 3,250 ft³/s, ice jam; minimum daily discharge, 0.53 ft³/s, Aug. 6, 1989.

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

Discharge, cubic feet per second, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	4.9	5.7	14	66	e35	90	182	88	752	68	19	17
2	4.8	7.1	13	65	e36	85	163	86	475	69	18	14
3	4.9	38	12	66	e37	74	148	107	398	83	18	13
4	4.8	51	12	63	e39	73	136	163	332	73	36	11
5	4.9	35	13	56	e43	290	125	148	292	67	31	10

6	5.1	42	14	57	e50	330	119	128	263	98	21	9.4
7	4.8	43	14	e62	e46	233	113	120	242	77	18	8.5
8	4.6	25	14	e70	e42	182	107	160	215	63	15	7.7
9	4.6	17	17	e64	e37	152	98	159	193	57	13	7.4
10	6.5	14	e348	e60	e35	132	90	138	206	76	12	7.2

11	5.5	13	e772	e58	e33	118	85	185	370	65	11	6.9
12	4.3	12	e437	e56	e31	105	82	156	269	65	10	6.6
13	4.6	9.0	255	e54	e30	97	79	150	214	59	9.6	6.4
14	7.2	8.8	202	e52	e29	101	77	164	202	51	9.1	6.4
15	11	8.6	171	e50	e28	95	75	170	196	45	8.7	11

16	6.9	9.2	154	e48	e28	95	72	170	168	41	8.0	151
17	5.3	9.2	145	e50	e27	100	68	156	153	49	7.6	58
18	5.6	14	124	e54	e27	124	65	177	142	44	13	27
19	5.5	43	115	e58	e27	127	62	270	131	37	34	20
20	5.5	61	148	e56	e70	114	64	230	122	34	20	15

21	5.2	41	142	e52	e200	102	113	299	120	32	16	12
22	5.0	32	122	e49	e170	93	105	316	118	47	13	10
23	5.0	27	95	e47	e150	91	83	510	108	47	12	9.5
24	5.1	24	94	e45	e170	95	76	364	98	37	12	8.7
25	5.6	21	96	e44	e140	96	91	348	93	33	23	8.2

26	5.5	20	83	e43	e110	156	90	385	88	30	37	7.8
27	6.2	18	86	e46	e92	254	79	312	83	27	29	7.4
28	6.2	16	80	e50	e88	207	75	264	81	25	39	7.5
29	5.3	14	80	e43	e82	232	72	229	77	23	57	7.3
30	6.4	15	74	e39	---	217	79	1020	71	21	34	6.8

31	5.8	---	70	e37	---	197	---	1320	---	20	22	---

TOTAL	172.6	693.6	4016	1660	1932	4457	2873	8492	6272	1563	626.0	498.7
MEAN	5.57	23.1	130	53.5	66.6	144	95.8	274	209	50.4	20.2	16.6
MAX	11	61	772	70	200	330	182	1320	752	98	57	151
MIN	4.3	5.7	12	37	27	73	62	86	71	20	7.6	6.4
CFSM	0.03	0.13	0.74	0.31	0.38	0.83	0.55	1.57	1.20	0.29	0.12	0.10
IN.	0.04	0.15	0.86	0.35	0.41	0.95	0.61	1.82	1.34	0.33	0.13	0.11

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1935 - 2004, BY WATER YEAR (WY)
MEAN	55.2	65.7	72.9	89.9	161	178	199	202	188	122	64.5	53.1
MAX	698	520	576	461	843	640	822	717	1020	1303	693	471
(WY)	1999	1999	1983	1974	2001	1993	1973	1996	1990	1982	1993	1980
MIN	2.40	2.96	2.63	2.74	5.29	19.1	11.4	7.68	10.9	1.24	2.75	1.82
(WY)	1964	1957	1965	1977	1964	1956	1956	1989	1936	1989	1989	1988

SUMMARY STATISTICS	FOR 2003 CALENDAR YEAR		FOR 2004 WATER YEAR		WATER YEARS 1935 - 2004
ANNUAL TOTAL	35189.7		33255.9
ANNUAL MEAN	96.4		90.9		122
HIGHEST ANNUAL MEAN					399	1993
LOWEST ANNUAL MEAN					25.8	1940
HIGHEST DAILY MEAN	4870	May 1	1320	May 31	7030	Oct 18 1998
LOWEST DAILY MEAN	4.3	Oct 12	4.3	Oct 12	0.53	Aug 6 1989
ANNUAL SEVEN-DAY MINIMUM	4.8	Oct 3	4.8	Oct 3	0.78	Aug 1 1989
MAXIMUM PEAK FLOW			2180	May 30	8900 A	Apr 22 1973
MAXIMUM PEAK STAGE			26.87	May 30	29.25 B	Feb 9 2001
INSTANTANEOUS LOW FLOW			4.0	Oct 12,13
ANNUAL RUNOFF (CFSM)	0.554		0.522		0.702
ANNUAL RUNOFF (INCHES)	7.52		7.11		9.54
10 PERCENT EXCEEDS	157		203		267
50 PERCENT EXCEEDS	20		56		48
90 PERCENT EXCEEDS	5.9		7.2		7.0

	A - Gage height, 27.88 ft., from graph based on gage readings at site 1,000 ft. upstream at same datum.
	B - Ice jam, estimated discharge, 3,250 ft³/s.