05533400 DATA: Discharge Tables, 2003

Station list Available data
ILLINOIS RIVER BASIN

05533400 SAWMILL CREEK NEAR LEMONT, IL


LOCATION.-- Lat 41°42'28", long 87°57'47" (NAD of 1927), in NE1/4SW1/4 sec.10, T.37 N., R.11 E., Du Page County, Hydrologic Unit 07120004, on concrete abutment on right bank, 50 ft upstream from bridge on Bluff Road at south edge of Argonne National Laboratory, 2.5 mi northeast of Lemont, and at mile 1.

DRAINAGE AREA.-- 13.0 mi²

PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE
	DISCHARGE: December 1985 to current year.
	STAGE: Water years 1994 to current year.
	PARTIAL RECORD: Annual maximum, water years 1961-79.
PRECIPITATION: April 1986 to current year.
SURFACE-WATER QUALITY
	MISCELLANEOUS: Water year 2000; contaminants in streambed sediments, water year 2000.
BIOLOGICAL
	BENTHIC MACROINVERTEBRATES: Water year 2000.
	FISH: Water year 2001.
	HABITAT: Water year 2000.

REVISED RECORDS.-- WDR IL-77-1: 1961-76(M).

GAGE.-- Water-stage recorder, phone telemeter, unheated tipping-bucket rain gage, and crest-stage gage. Datum of gage is 630.00 ft above NGVD of 1929. Oct. 11, 1961, to Sept. 30, 1976, crest-stage gage on bridge 50 ft downstream at datum 11.22 ft higher.

REMARKS.-- For precipitation records, snowfall-affected data can result during cold weather when snow fills the rain-gage funnel and then melts as temperatures rise. Snowfall-affected data are subject to appreciable errors.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 3,070 ft³/s, July 18,1996, gage height, 17.53 ft; no flow at times in most years.
PRECIPITATION: Maximum daily total, 6.17 in., July 17, 1996.

REMARKS FOR CURRENT YEAR.-- Records fair 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	0.83	0.04	e0.21	e0.18	0.22	e0.17	3.4	103	5.8	0.00	30	22
2	1.9	0.00	e0.22	e0.17	0.19	e0.17	2.6	39	3.8	0.00	20	6.8
3	1.1	0.00	e0.20	e0.18	e0.21	e0.18	2.2	18	8.7	0.00	29	2.8
4	24	0.00	e0.19	e0.17	e0.24	e0.18	79	20	4.2	0.02	27	1.5
5	8.0	0.04	e0.19	e0.19	e0.20	e0.18	47	85	3.0	18	9.1	0.83

6	2.6	0.45	e0.19	e0.19	e0.17	e0.19	21	27	2.6	10	27	0.43
7	1.3	0.38	e0.19	e0.19	e0.15	e1.2	18	13	2.4	15	24	0.06
8	0.79	0.21	e0.20	e0.18	e0.16	e3.7	13	8.5	7.2	23	8.1	0.00
9	0.55	0.01	e0.19	e0.18	e0.15	e4.5	9.6	146	5.1	9.5	5.1	0.00
10	0.42	0.49	e0.19	e0.17	e0.15	e4.0	7.8	54	3.5	7.1	3.2	0.00

11	0.18	0.48	e0.18	e0.17	e0.15	e3.6	5.9	101	2.7	4.1	3.0	0.00
12	0.00	0.39	e0.17	e0.17	e0.14	e5.0	4.5	36	2.1	2.4	3.0	0.00
13	0.28	0.29	e0.18	e0.17	e0.14	e8.8	3.9	20	1.6	1.4	2.1	0.00
14	0.14	0.70	e0.17	e0.17	e0.14	e7.0	3.4	17	1.3	0.99	1.6	6.2
15	0.00	3.2	e0.18	e0.16	e0.15	e6.5	3.2	10	0.84	59	1.2	1.6

16	0.00	0.91	e0.18	e0.16	e0.15	e5.5	3.2	7.1	0.34	12	0.83	0.45
17	0.00	e0.75	e0.18	e0.16	e0.15	e5.0	2.6	5.4	0.15	24	1.5	0.03
18	0.00	e0.66	e0.40	e0.16	e0.14	e4.6	1.9	4.5	4.1	43	0.91	0.00
19	0.08	e0.70	e0.58	e0.16	e0.14	4.0	1.7	4.4	4.9	9.0	0.39	0.00
20	0.00	0.97	e0.45	e0.16	e0.14	9.7	2.6	22	1.9	5.9	0.29	0.00

21	0.00	2.9	e0.27	e0.16	e0.15	5.2	2.1	5.6	1.0	61	0.15	0.00
22	0.00	2.5	e0.23	e0.16	e0.15	3.4	1.9	4.4	0.61	11	0.19	4.0
23	0.11	2.2	e0.21	e0.16	e0.15	3.0	1.7	3.6	0.17	5.5	0.33	1.5
24	0.37	e0.68	e0.19	e0.16	e0.15	2.9	1.5	2.9	0.00	3.5	0.16	1.6
25	1.7	e0.40	e0.18	e0.15	e0.15	2.6	1.5	2.3	0.00	2.5	0.00	1.6

26	0.98	e0.30	e0.18	e0.16	e0.14	2.0	1.2	1.8	0.00	1.7	0.15	11
27	0.52	e0.25	e0.18	e0.17	e0.15	1.7	1.00	1.5	0.00	3.2	0.48	6.6
28	0.36	e0.22	e0.17	e0.16	e0.16	14	0.89	6.2	0.04	3.3	0.03	2.4
29	0.09	e0.20	e0.17	e0.16	---	9.5	0.89	4.8	0.39	2.3	2.3	1.5
30	0.16	e0.21	e0.18	e0.16	---	3.8	19	12	0.00	1.2	1.2	0.96

31	0.00	---	e0.19	e0.17	---	3.0	---	18	---	0.60	2.1	---

TOTAL	46.46	20.53	6.79	5.21	4.48	125.27	268.18	804.0	68.44	340.21	204.41	73.86
MEAN	1.50	0.68	0.22	0.17	0.16	4.04	8.94	25.9	2.28	11.0	6.59	2.46
MAX	24	3.2	0.58	0.19	0.24	14	79	146	8.7	61	30	22
MIN	0.00	0.00	0.17	0.15	0.14	0.17	0.89	1.5	0.00	0.00	0.00	0.00
CFSM	0.12	0.05	0.02	0.01	0.01	0.31	0.69	2.00	0.18	0.84	0.51	0.19
IN.	0.13	0.06	0.02	0.01	0.01	0.36	0.77	2.30	0.20	0.97	0.58	0.21

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1986 - 2003, BY WATER YEAR (WY)
MEAN	6.91	11.0	8.35	10.6	13.6	14.0	17.5	17.0	11.8	10.3	8.73	6.83
MAX	24.7	37.4	28.7	30.6	54.5	27.7	53.4	49.3	57.6	58.6	28.2	20.6
(WY)	2002	1991	1988	1993	1997	1990	1999	1990	1993	1996	1998	1989
MIN	1.11	0.68	0.22	0.17	0.16	3.54	5.30	1.25	1.02	0.14	0.50	0.095
(WY)	1993	2003	2003	2003	2003	2000	1989	1992	1992	1991	1991	1995

SUMMARY STATISTICS	FOR 2002 CALENDAR YEAR		FOR 2003 WATER YEAR		WATER YEARS 1986 - 2003
ANNUAL TOTAL	3290.86		1967.84
ANNUAL MEAN	9.02		5.39		11.2
HIGHEST ANNUAL MEAN					17.9	1993
LOWEST ANNUAL MEAN					5.39	2003
HIGHEST DAILY MEAN	383	May 12	146	May 9	1220	Jul 18 1996
LOWEST DAILY MEAN	0.00	A	0.00	A	0.00	B
ANNUAL SEVEN-DAY MINIMUM	0.00	Jul 18	0.01	Sep 7	0.00	Jul 24 1991
MAXIMUM PEAK FLOW			387	May 9	3070	Jul 18 1996
MAXIMUM PEAK STAGE			11.90	May 9	17.53	Jul 18 1996
ANNUAL RUNOFF (CFSM)	0.69		0.41		0.86
ANNUAL RUNOFF (INCHES)	9.42		5.63		11.70
10 PERCENT EXCEEDS	22		13		24
50 PERCENT EXCEEDS	1.9		0.83		3.5
90 PERCENT EXCEEDS	0.02		0.04		0.27

	A - Many days.
	B - At times in most years.