03612000 DATA: Discharge Tables, 2002

CACHE RIVER BASIN

03612000 CACHE RIVER AT FORMAN, IL


LOCATION.-- Lat 37°20'11", long 88°55'26" (NAD of 1927), in NE1/4NW1/4 sec.6, T.14 S., R.3 E., Johnson County, Hydrologic Unit 05140206, at downstream side of bridge on County Highway 3, 1.2 mi southwest of Forman, and at mile 8.1.

DRAINAGE AREA.-- 244 mi².

PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE
	DISCHARGE: October 1922 to July 1924, September 1924 to current year.
	STAGE: Water years 1994-2002.
SURFACE-WATER QUALITY
	CHEMICAL: Water years 1978-91.

REVISED RECORDS.-- WSP 623: 1923-24. WSP 823: 1934-35. WSP 1205: 1923-24, 1927-30. WSP 1335: 1923(M), 1925, 1926-27(M), 1928, 1929-30(M), 1931, 1933, 1934-36(M), 1937-39. WDR IL-75-1: Drainage area.

GAGE.-- Water-stage recorder, phone telemeter, and crest-stage gage. Datum of gage is 308.47 ft. above NGVD of 1929. Dec. 30, 1971 to Sept. 30, 1997, recording gage at same site at datum 10.0 ft. higher. Oct. 1, 1958, to Dec. 30, 1971, nonrecording gage at same site and datum 10.0 ft. higher. See WSP 1705 or 1725 for history of changes prior to Sept. 30, 1958.

REMARKS.-- Flow of lower part of Cache River Basin was diverted from Ohio River to Mississippi River beginning Oct. 31, 1950, through diversion channel of Mounds-Mound City flood-protection project. Flow of upper part of Cache River Basin, including flow past this station, continued to discharge to Ohio River, passing through Post Creek cutoff directly to Ohio River instead of through the original channel of Cache River.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 9,630 ft³/s, March 12, 1935, gage height, 42.29 ft, site then in use, from graph based on gage readings; no flow at times in some years.

REMARKS FOR CURRENT YEAR.-- Records good except those for periods of backwater from the Ohio River, Dec. 2-4, 22-26, Jan. 26 to Feb. 7, Mar. 20 to Apr. 10, Apr. 25 to June 3, and 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	1.0	47	2690	e80	e2440	115	e619	e1210	e109	20	1.8	2.1
2	0.83	45	e1970	e67	e2040	113	e412	e1090	e86	19	32	1.8
3	0.83	41	e1540	e54	e1740	259	e295	e814	e69	14	21	2.3
4	0.91	40	e1090	e46	e1570	357	e247	e731	61	11	11	2.3
5	2.5	38	837	e40	e1180	242	e206	e608	50	18	7.4	1.8

6	7.7	35	835	e44	e862	178	e165	e428	167	24	5.1	1.5
7	5.2	32	811	e52	e651	147	e124	e335	371	17	3.3	1.4
8	2.6	30	1050	e62	499	126	e126	e1490	192	15	2.3	1.1
9	8.5	27	735	e74	367	785	e179	e2070	103	13	1.6	1.1
10	7.3	26	502	85	283	1010	e227	e2020	78	12	1.1	0.92

11	14	25	340	89	218	869	198	e1830	100	11	0.95	0.79
12	326	25	347	81	174	725	171	e1760	82	87	0.77	0.63
13	814	23	773	70	141	529	1470	e3640	84	198	2.9	0.51
14	2060	23	1570	62	117	396	2580	e4620	54	86	8.1	0.44
15	1290	22	1410	52	99	330	2720	e4930	36	37	5.5	0.48

16	711	22	1870	46	87	1480	2040	e3640	28	21	3.0	0.48
17	596	21	4490	45	75	996	1480	e3560	34	13	2.5	0.57
18	397	22	6200	42	65	903	1180	e3700	26	9.6	5.6	0.60
19	228	22	6490	46	64	1850	1000	e2940	23	7.1	4.8	1.1
20	144	21	5220	55	577	e2560	1080	e2420	21	9.8	3.7	105

21	104	21	3270	63	790	e2340	1830	e1870	21	8.6	2.8	63
22	80	20	e1790	90	719	e1830	1450	e1250	19	6.0	2.3	33
23	63	20	e1090	210	446	e1520	1120	e917	14	4.7	2.1	35
24	98	23	e796	3380	274	e1100	1400	e722	12	4.1	1.8	18
25	416	77	e601	3010	208	e983	e1100	e568	10	3.6	4.3	10

26	438	153	e427	e1590	194	e2680	e928	e488	9.9	3.7	5.3	9.8
27	286	1230	327	e1080	162	e2370	e798	e346	9.2	3.5	3.9	199
28	152	1610	248	e790	137	e1850	e1360	e265	20	3.2	2.8	53
29	88	2600	e180	e541	---	e1620	e915	e298	18	3.4	2.3	59
30	63	3040	e120	e613	---	e1240	e716	e176	15	3.2	2.5	33

31	53	---	e95	e1140	---	e864	---	e138	---	2.5	2.4	---

TOTAL	8458.37	9381	49714	13699	16179	32367	28136	50874	1922.1	689.0	156.92	639.72
MEAN	272.9	312.7	1604	441.9	577.8	1044	937.9	1641	64.07	22.23	5.062	21.32
MAX	2060	3040	6490	3380	2440	2680	2720	4930	371	198	32	199
MIN	0.83	20	95	40	64	113	124	138	9.2	2.5	0.77	0.44
CFSM	1.12	1.28	6.57	1.81	2.37	4.28	3.84	6.73	0.26	0.09	0.02	0.09
IN.	1.29	1.43	7.58	2.09	2.47	4.93	4.29	7.76	0.29	0.11	0.02	0.10

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1923 - 2002, BY WATER YEAR (WY)
MEAN	55.61	190.4	334.5	492.5	490.3	598.6	567.2	425.4	213.3	87.23	71.71	55.40
MAX	487	1097	2192	3039	1813	2268	2244	1847	1759	1257	826	542
(WY)	1928	1958	1983	1950	1950	1945	1927	1983	1928	1958	1985	1950
MIN	0.019	0.66	0.58	1.38	7.05	12.4	40.7	10.4	1.37	1.71	0.000	0.43
(WY)	1964	1954	1964	1977	1934	1941	1981	1930	1936	1931	1930	1953

SUMMARY STATISTICS	FOR 2001 CALENDAR YEAR		FOR 2002 WATER YEAR		WATER YEARS 1923 - 2002
ANNUAL TOTAL	95052.07		212216.11
ANNUAL MEAN	260.4		581.4		296.5
HIGHEST ANNUAL MEAN					779	1950
LOWEST ANNUAL MEAN					37.5	1941
HIGHEST DAILY MEAN	6490	Dec 19	6490	Dec 19	8780	Jan 26 1929
LOWEST DAILY MEAN	0.83	Oct 2-3	0.44	Sep 14	0.00	A
ANNUAL SEVEN-DAY MINIMUM	1.1	Sep 28	0.53	Sep 12	0.00	Jul 29 1930
MAXIMUM PEAK FLOW			6630	Dec 19	9630	Mar 12 1935
MAXIMUM PEAK STAGE			34.50	Dec 19	42.29 B	Mar 12 1935
INSTANTANEOUS LOW FLOW			0.41	Sep 13-17
ANNUAL RUNOFF (CFSM)	1.07		2.38		1.22
ANNUAL RUNOFF (INCHES)	14.49		32.35		16.51
10 PERCENT EXCEEDS	599		1830		846
50 PERCENT EXCEEDS	43		99		52
90 PERCENT EXCEEDS	4.9		2.5		1.8

	A - At times in some years.
	B - Site then in use, from graph based on gage readings.

Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data