05551200 DATA: Discharge Tables, 2003

Station list Available data
ILLINOIS RIVER BASIN

05551200 FERSON CREEK NEAR ST. CHARLES, IL


LOCATION.-- Lat 41°55'58", long 88°20'28" (NAD of 1927), 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.--
SURFACE-WATER DISCHARGE AND STAGE
	DISCHARGE: December 1960 to current year.
	STAGE: Water years 1994 to current year.
SURFACE-WATER QUALITY
	MISCELLANEOUS: Water year 2000; contaminants in streambed sediments, water year 2000.
PRECIPITATION: August 2000 to current year.
BIOLOGICAL
	BENTHIC MACROINVERTEBRATES: Water year 2000.
	HABITAT: Water year 2000.

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, phone telemeter, crest-stage gage, and rain gage. Datum of gage is 704.84 ft above NGVD of 1929.

REMARKS.-- Collection, computation and publication of precipitation data do not necessarily conform to standards used by the National Weather Service. Precipitation data could be subject to error for days with freezing and/or thawing of precipitation.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 2,580, Feb. 21, 1997, from rating curve extended above 1,960 ft³/s, gage height, 8.77 ft; maximum gage height, 9.66 ft, Feb. 8, 1965, from floodmark, ice jam; minimum discharge, 0.10 ft³/s, several days in 1961 and 1965.
PRECIPITATION: Maximum recorded daily total, 3.27 in., August 13, 2002.

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

Discharge, cubic feet per second, WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	7.3	9.5	11	11	8.7	5.8	17	337	25	6.0	10	e2.4
2	13	9.6	9.4	10	9.9	6.7	15	219	22	5.6	9.9	e2.6
3	14	9.7	10	10	11	e6.6	15	115	23	5.5	25	e2.4
4	19	13	11	12	e12	e6.4	42	86	22	6.0	35	e2.0
5	29	11	9.7	9.5	e9.8	e6.4	107	278	20	10	17	e1.8

6	19	11	9.7	9.5	e8.0	e6.3	63	176	18	9.9	13	e1.7
7	15	11	9.1	9.2	e7.2	6.0	47	114	19	8.0	30	e1.7
8	12	11	9.5	9.7	e6.8	e6.1	39	87	28	8.4	16	e1.7
9	11	9.8	9.8	9.9	e6.4	e6.0	35	185	43	11	13	e1.7
10	9.7	11	9.0	e9.3	e6.2	e5.8	42	149	28	13	10	e1.7

11	10	11	9.0	e8.6	e6.2	5.7	35	608	22	9.9	e7.8	e1.7
12	9.5	15	8.7	8.1	e6.1	8.9	28	325	20	8.2	e7.0	e1.7
13	8.9	12	9.3	7.7	e6.0	33	24	153	19	6.7	e6.0	e2.3
14	9.3	9.8	9.4	7.9	6.1	26	21	123	17	5.8	e5.0	e6.2
15	8.9	10	9.1	7.9	6.2	18	19	150	15	39	e7.7	e3.5

16	8.8	9.8	9.2	8.0	6.0	17	18	109	13	30	e6.9	e2.3
17	8.6	9.0	8.8	7.8	5.9	18	16	86	12	16	e7.0	e1.9
18	9.4	8.9	12	7.6	5.9	16	15	70	12	20	e6.0	e1.8
19	9.9	14	22	7.9	6.0	15	15	63	13	14	e4.0	e1.7
20	9.6	13	19	7.9	6.3	20	17	65	10	10	e2.8	e1.7

21	9.3	12	15	7.5	7.2	20	16	52	9.5	11	e2.0	e1.7
22	9.8	12	13	7.0	7.4	17	15	45	9.2	9.3	e1.8	e5.2
23	9.4	10	13	7.0	e7.2	15	13	39	8.7	8.5	e1.7	e3.5
24	9.1	11	11	7.8	e6.7	14	12	36	8.1	7.2	e1.6	e1.8
25	12	9.5	11	8.3	e6.4	19	12	33	8.1	6.3	e1.5	e1.7

26	14	9.4	9.8	8.1	6.2	20	11	30	8.5	5.8	e1.6	e3.0
27	13	11	e9.8	8.9	5.8	17	10	28	7.9	5.5	e1.7	e9.6
28	12	10	e9.8	8.8	5.7	17	9.6	28	6.9	9.2	e1.8	e7.2
29	11	10	10	8.3	---	29	9.2	28	6.7	12	e2.0	e3.0
30	10	11	11	8.2	---	22	29	27	6.2	8.4	e2.2	e2.4

31	10	---	11	8.3	---	21	---	28	---	7.2	e2.3	---

TOTAL	361.5	325.0	339.1	267.7	199.3	450.7	766.8	3872	480.8	333.4	259.3	83.6
MEAN	11.7	10.8	10.9	8.64	7.12	14.5	25.6	125	16.0	10.8	8.36	2.79
MAX	29	15	22	12	12	33	107	608	43	39	35	9.6
MIN	7.3	8.9	8.7	7.0	5.7	5.7	9.2	27	6.2	5.5	1.5	1.7
CFSM	0.23	0.21	0.21	0.17	0.14	0.28	0.49	2.42	0.31	0.21	0.16	0.05
IN.	0.26	0.23	0.24	0.19	0.14	0.32	0.55	2.79	0.35	0.24	0.19	0.06

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1961 - 2003, BY WATER YEAR (WY)
MEAN	22.5	35.2	36.1	35.9	50.7	68.7	70.4	56.2	47.2	25.2	25.3	23.1
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	14.5	16.4	7.87	3.07	1.05	1.65	1.64
(WY)	1964	1972	1964	1977	1963	2003	1977	1989	1977	1961	1964	1976

SUMMARY STATISTICS	FOR 2002 CALENDAR YEAR		FOR 2003 WATER YEAR		WATER YEARS 1961 - 2003
ANNUAL TOTAL	15504.7		7739.2
ANNUAL MEAN	42.5		21.2		41.8
HIGHEST ANNUAL MEAN					76.7	1993
LOWEST ANNUAL MEAN					8.72	1977
HIGHEST DAILY MEAN	986	Jun 5	608	May 11	1620	Feb 21 1997
LOWEST DAILY MEAN	4.8	Aug 12	1.5 A	Aug 25	0.10	B
ANNUAL SEVEN-DAY MINIMUM	7.1	Aug 6	1.7 A	Aug 22	0.23	Aug 26 1961
MAXIMUM PEAK FLOW			807	May 11	2580 C,D	Feb 21 1997
MAXIMUM PEAK STAGE			5.34	May 11	9.66 E	Feb 8 1965
INSTANTANEOUS LOW FLOW					0.10	F
ANNUAL RUNOFF (CFSM)	0.82		0.41		0.81
ANNUAL RUNOFF (INCHES)	11.16		5.57		10.98
10 PERCENT EXCEEDS	82		33		88
50 PERCENT EXCEEDS	20		9.8		22
90 PERCENT EXCEEDS	9.0		3.3		4.5

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