05551200 DATA: Discharge Tables, 1999

ILLINOIS RIVER BASIN

05551200 FERSON CREEK NEAR ST. CHARLES, IL

LOCATION.--Lat 41°56'00", long 88°20'30", in NE1/4SE1/4 sec.20, T.40 N., R.8 E., Kane County, Hydrologic Unit 07120007, on right bank at downstream side of bridge on Randall Road, 2.4 mi northwest of St. Charles, and at mile 2.2.

DRAINAGE AREA.--51.7 mi².

PERIOD OF RECORD.--December 1960 to current year.

REVISED RECORDS.--WDR IL-75-1: Drainage area. WDR IL-82-2: 1966(M), 1968(M), 1970-71(M), 1973(M), 1978-79(M).

GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 704.84 ft above sea level.

REMARKS.--Records good except for those estimated daily discharges, which are poor. Gage-height telemeter at station.

DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	15	33	33	14	106	66	41	103	53	26	14	5.8
2	12	31	30	e14	138	59	36	87	199	24	13	6.2
3	19	28	27	e14	146	65	28	76	118	22	12	5.7
4	14	26	26	e15	121	54	32	69	79	20	12	5.0
5	28	24	25	e15	95	51	29	64	70	18	11	4.8

6	39	23	40	e15	103	52	32	74	54	16	11	4.5
7	37	21	178	e14	97	47	27	81	97	14	12	4.1
8	26	21	102	e14	87	46	27	64	58	13	13	4.1
9	19	21	61	e15	86	49	155	56	49	19	12	4.0
10	15	188	46	e15	82	46	113	48	77	18	11	3.6

11	12	222	38	e15	92	42	80	47	57	12	9.8	3.5
12	10	113	34	e14	169	41	60	146	52	11	12	3.9
13	8.9	84	31	e13	100	42	49	129	259	12	14	5.6
14	8.7	69	28	e14	79	42	42	93	540	10	12	5.7
15	9.5	58	26	e15	72	44	44	74	181	8.7	10	4.7

16	9.7	51	25	e16	68	61	142	61	114	8.1	9.4	4.5
17	177	46	24	e25	62	135	125	69	86	9.5	9.3	4.1
18	744	42	22	e48	55	159	87	73	68	12	8.5	4.4
19	314	42	21	e40	52	105	72	61	57	11	15	3.9
20	146	37	19	e31	46	85	62	51	49	15	15	4.6

21	103	33	19	35	42	74	67	49	42	61	11	4.6
22	94	32	e19	380	40	64	407	169	38	65	9.5	4.1
23	87	32	e18	876	38	59	1090	113	49	36	9.5	4.2
24	65	29	18	703	37	55	416	86	41	76	21	3.5
25	46	28	17	336	38	50	197	69	33	42	25	4.3

26	40	27	18	179	39	53	141	52	29	30	14	3.4
27	38	25	17	140	76	52	152	44	28	26	10	4.4
28	62	25	16	178	77	46	371	39	27	22	9.1	116
29	51	24	17	124	---	45	192	34	24	19	7.6	162
30	43	29	e16	110	---	42	128	31	22	17	6.8	73

31	38	---	15	105	---	41	---	32	---	15	6.1	---

TOTAL	2330.8	1464	1026	3542	2243	1872	4444	2244	2650	708.3	365.6	472.2
MEAN	75.2	48.8	33.1	114	80.1	60.4	148	72.4	88.3	22.8	11.8	15.7
MAX	744	222	178	876	169	159	1090	169	540	76	25	162
MIN	8.7	21	15	13	37	41	27	31	22	8.1	6.1	3.4
CFSM	1.45	.94	.64	2.21	1.55	1.17	2.87	1.40	1.71	.44	.23	.30
IN.	1.68	1.05	.74	2.55	1.61	1.35	3.20	1.61	1.91	.51	.26	.34

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1961 - 1999, BY WATER YEAR (WY)
MEAN	22.0	36.5	37.8	37.8	50.2	71.7	72.7	54.7	46.1	25.8	25.5	24.1
MAX	99.3	151	159	134	170	303	186	148	159	113	141	170
(WY)	1973	1986	1983	1969	1997	1979	1993	1996	1993	1996	1987	1972
MIN	1.61	2.39	1.98	1.63	3.31	17.1	16.4	7.87	3.07	1.05	1.65	1.64
(WY)	1964	1972	1964	1977	1963	1968	1977	1989	1977	1961	1964	1976

SUMMARY STATISTICS	FOR 1998 CALENDAR YEAR		FOR 1999 WATER YEAR		WATER YEARS 1961 - 1999
ANNUAL TOTAL	17300.4		23361.9
ANNUAL MEAN	47.4		64.0		42.6
HIGHEST ANNUAL MEAN					76.7	1993
LOWEST ANNUAL MEAN					8.72	1977
HIGHEST DAILY MEAN	744	Oct 18	1090	Apr 23	1620	Feb 21 1997
LOWEST DAILY MEAN	4.0	Aug 23	3.4	Sep 26	.10	A
ANNUAL SEVEN-DAY MINIMUM	4.7	Aug 18	4.0	Sep 6	.23	Aug 26 1961
INSTANTANEOUS PEAK FLOW			1340	Apr 23	2580 B,C	Feb 21 1997
INSTANTANEOUS PEAK STAGE			6.54	Apr 23	9.66 D	Feb 8 1965
INSTANTANEOUS LOW FLOW			3.0	Sep 24,26	.10	E
ANNUAL RUNOFF (CFSM)	.92		1.24		.82
ANNUAL RUNOFF (INCHES)	12.45		16.81		11.19
10 PERCENT EXCEEDS	103		131		89
50 PERCENT EXCEEDS	28		38		22
90 PERCENT EXCEEDS	8.6		9.2		4.2

A - Several days in 1961.
B - From rating curve extended above 1,960 ft³/s.
C - Gage height, 8.77 ft.
D - From floodmark, ice jam.
E - Several days in 1961 and 1965.

Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data