05467000 DATA: Discharge Tables, 2000

Station list Available data
POPE CREEK BASIN

05467000 POPE CREEK NEAR KEITHSBURG, IL

LOCATION.-- Lat 41°07'44", long 90°55'09", 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;1998-2000.

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 rain gage, and crest-stage gage. Datum of gage is 524.07 ft above sea level (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, 29.08 ft, July 24, 1993, discharge, 7,270 ft³/s, backwater from the Mississippi River; minimum daily discharge, 0.53 ft³/s, Aug. 6, 1989.

REMARKS FOR CURRENT YEAR.-- Records good except those for Apr. 23 to May 11, which are fair, and 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	52	16	14	28	e17	247	62	162	419	225	72	20
2	38	16	15	32	e18	215	62	156	303	236	64	19
3	34	16	15	36	e19	190	62	147	223	251	55	18
4	38	16	16	29	e19	175	60	143	193	422	50	17
5	37	16	30	22	e20	162	57	135	180	745	48	17

6	34	16	49	29	e20	150	54	129	163	439	92	16
7	29	16	44	25	e21	139	56	125	148	330	234	16
8	26	16	35	23	e21	133	58	122	139	271	107	15
9	24	16	35	30	e21	126	55	139	130	237	84	15
10	22	15	70	39	e23	115	52	149	121	450	67	15

11	21	15	63	41	e25	106	59	140	125	334	54	16
12	20	16	52	36	e27	102	55	132	136	254	47	31
13	18	15	46	29	e26	100	50	124	135	221	46	25
14	18	15	41	29	e25	96	48	110	208	196	44	28
15	18	15	39	36	e25	93	46	102	200	173	40	25

16	19	15	37	33	e26	88	52	103	173	158	36	26
17	19	15	35	27	e28	81	93	101	150	143	34	21
18	18	15	27	29	e30	77	74	99	134	131	32	18
19	18	15	e24	24	e32	90	76	96	124	126	31	16
20	17	15	e22	e25	e31	99	477	85	121	117	29	19

21	18	15	e23	e23	e30	100	1150	81	139	108	28	21
22	17	15	e21	e21	59	94	585	79	133	99	27	31
23	17	16	e20	e20	213	86	403	79	132	92	28	34
24	17	16	e19	e19	274	88	327	73	345	85	27	44
25	17	18	e18	e18	237	87	271	65	1420	80	25	65

26	18	17	e18	e17	587	81	234	64	937	79	24	55
27	16	16	e19	e16	469	83	214	88	442	78	23	41
28	16	15	e20	e15	314	82	202	80	350	71	25	33
29	16	15	e21	e15	244	76	186	72	296	67	26	28
30	16	14	e23	e16	---	68	171	67	255	66	24	25

31	16	---	e25	e17	---	64	---	884	---	72	22	---

TOTAL	704	467	936	799	2901	3493	5351	4131	7974	6356	1545	770
MEAN	22.7	15.6	30.2	25.8	100	113	178	133	266	205	49.8	25.7
MAX	52	18	70	41	587	247	1150	884	1420	745	234	65
MIN	16	14	14	15	17	64	46	64	121	66	22	15
CFSM	.13	.09	.17	.15	.57	.65	1.03	.77	1.53	1.18	.29	.15
IN.	.15	.10	.20	.17	.62	.75	1.14	.88	1.70	1.36	.33	.16

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1935 - 2000, BY WATER YEAR (WY)
MEAN	56.8	68.2	74.2	93.6	155	179	200	182	180	125	65.3	55.3
MAX	698	520	576	461	585	640	822	717	1020	1303	693	471
(WY)	1999	1999	1983	1974	1986	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 1999 CALENDAR YEAR		FOR 2000 WATER YEAR		WATER YEARS 1935 - 2000
ANNUAL TOTAL	58332.3		35427
ANNUAL MEAN	160		96.8		121
HIGHEST ANNUAL MEAN					399	1993
LOWEST ANNUAL MEAN					25.8	1940
HIGHEST DAILY MEAN	2190	Apr 23	1420	Jun 25	7030	Oct 18 1998
LOWEST DAILY MEAN	7.5	Sep 25, 26	14	A	.53	Aug 6 1989
ANNUAL SEVEN-DAY MINIMUM	8.5	Sep 20	15	Nov 27	.78	Aug 1 1989
INSTANTANEOUS PEAK FLOW			1910	May 31	8900 B	Apr 22 1973
INSTANTANEOUS PEAK STAGE			26.95	May 31	29.08 C	Jul 24 1993
INSTANTANEOUS LOW FLOW			12	Nov 30
ANNUAL RUNOFF (CFSM)	.92		.56		.69
ANNUAL RUNOFF (INCHES)	12.47		7.57		9.43
10 PERCENT EXCEEDS	359		228		260
50 PERCENT EXCEEDS	88		44		47
90 PERCENT EXCEEDS	15		16		6.7

A - Nov. 30 and Dec. 1.
B - Gage height, 27.88 ft. from graph based on gage readings at site 1,000 ft upstream at same datum.
C - Discharge 7,270 ft³/s, backwater from the Mississippi River.