USGS CD-ROM: Current Year Discharge

05595200 RICHLAND CREEK NEAR HECKER, IL

LOCATION.--Lat 38°19'26", long 89°58'15", in SW¼SE¼ sec.27 projected, T.2 S., R.8 W., St. Clair County, Hydrologic Unit 07140204, on left bank at downstream side of bridge on State Highway 156, 2 mi northeast of Hecker, 5 mi west of New Athens, and at mile 17.3.

DRAINAGE AREA.--129 mi².

PERIOD OF RECORD.--October 1969 to current year. October 1980 to September 1994 (8 a.m. gage heights).

REVISED RECORDS.--WDR IL-75-1: Drainage area.

GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 375.00 ft above sea level. June 28, 1976, to Nov. 9, 1978, nonrecording gage at same site and datum.

REMARKS.--No estimated daily discharges. Records good. Effluent from two sewage-treatment plants 13-16 mi upstream averaged about 14.7 ft³/s per day. Gage-height 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	10	15	21	22	27	48	188	132	29	70	112	29
2	10	15	18	22	26	42	104	247	27	40	69	29
3	10	15	17	21	24	39	214	847	25	36	51	22
4	10	15	21	22	24	38	167	158	550	1310	43	18
5	10	18	20	84	23	34	106	107	1480	278	2970	15

6	10	150	17	88	24	38	93	96	227	88	1230	12
7	8.3	51	17	75	22	40	87	101	103	404	1230	12
8	8.8	26	16	1120	23	984	81	79	109	684	207	16
9	12	21	17	347	21	558	66	69	191	92	113	13
10	13	19	23	88	21	167	57	69	89	62	78	12

11	12	18	24	59	55	101	52	58	91	59	589	13
12	12	17	20	51	70	74	51	53	84	49	494	13
13	16	17	18	44	39	70	74	50	70	41	90	12
14	21	20	17	34	32	67	259	45	1340	34	63	13
15	15	20	16	80	30	55	464	42	403	35	50	14

16	13	19	18	47	242	59	1900	40	118	33	46	17
17	12	17	16	38	830	383	312	37	81	28	56	21
18	11	16	15	38	824	1320	148	35	69	25	405	23
19	11	16	15	31	164	675	118	34	101	23	152	16
20	11	15	15	30	104	3270	99	33	151	22	61	13

21	11	16	16	29	80	818	90	84	473	20	45	14
22	11	15	47	29	70	225	83	110	108	20	37	17
23	11	15	35	34	57	155	76	62	67	193	34	12
24	62	14	297	33	52	127	68	163	51	47	31	12
25	39	15	182	31	47	111	68	76	41	33	24	12

26	52	14	47	35	44	98	66	60	36	168	23	11
27	35	14	34	37	109	161	193	61	32	91	21	11
28	19	14	29	34	62	1110	158	44	29	44	19	11
29	16	14	28	31	---	208	855	38	54	34	18	10
30	15	19	26	28	---	141	201	34	584	1090	18	10

31	14	---	24	27	---	208	---	32	---	791	18	---

TOTAL	521.1	670	1126	2689	3146	11424	6498	3096	6813	5944	8397	453
MEAN	16.8	22.3	36.3	86.7	112	369	217	99.9	227	192	271	15.1
MAX	62	150	297	1120	830	3270	1900	847	1480	1310	2970	29
MIN	8.3	14	15	21	21	34	51	32	25	20	18	10
CFSM	.13	.17	.28	.67	.87	2.86	1.68	.77	1.76	1.49	2.10	.12
IN.	.15	.19	.32	.78	.91	3.29	1.87	.89	1.96	1.71	2.42	.13

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1970 - 1998, BY WATER YEAR (WY)
MEAN	44.4	117	135	105	157	200	202	152	86.4	75.8	41.9	63.3
MAX	270	516	590	338	505	611	751	1306	227	322	271	471
(WY)	1987	1986	1983	1974	1982	1984	1994	1995	1998	1981	1998	1993
MIN	6.51	7.53	9.66	7.19	19.1	19.4	20.2	18.4	14.9	11.6	7.64	6.66
(WY)	1972	1972	1977	1977	1978	1981	1981	1988	1972	1970	1971	1976

SUMMARY STATISTICS	FOR 1997 CALENDAR YEAR		FOR 1998 WATER YEAR		WATER YEARS 1970 - 1998
ANNUAL TOTAL	33573.8		50777.1
ANNUAL MEAN	92.0		139		115
HIGHEST ANNUAL MEAN					198	1973
LOWEST ANNUAL MEAN					23.5	1976
HIGHEST DAILY MEAN	3610	Feb 27	3270	Mar 20	13300	May 17 1995
LOWEST DAILY MEAN	8.3	Oct 7	8.3	Oct 7	4.2	Oct 17 1976
ANNUAL SEVEN-DAY MINIMUM	9.6	Oct 2	9.6	Oct 2	4.8	Oct 12 1976
INSTANTANEOUS PEAK FLOW			4630	Aug 5	23400	Apr 29 1996
INSTANTANEOUS PEAK STAGE			40.18	Aug 5	44.4 A	Apr 29 1996
INSTANTANEOUS LOW FLOW			6.9	Oct 7
ANNUAL RUNOFF (CFSM)	.71		1.08		.89
ANNUAL RUNOFF (INCHES)	9.68		14.64		12.07
10 PERCENT EXCEEDS	159		267		192
50 PERCENT EXCEEDS	31		38		27
90 PERCENT EXCEEDS	13		13		9.0

A - From floodmark.