LOCATION.-- Lat 41°43'33", long 88°09'49" (NAD of 1983), in SW1/4SW1/4 sec.36, T.38 N., R.9 E., Du Page County, Hydrologic Unit 07120004, on right bank at upstream side of bridge on 87th Street, 3.0 mi south of Naperville, and at mile 2.9. |
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DRAINAGE AREA.-- 9.90 mi2. |
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PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE |
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DISCHARGE: October 1987 to current year. |
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STAGE: Water years 1994 to current year. |
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SURFACE-WATER QUALITY |
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CHEMICAL: October 1987 to current year. |
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GAGE.-- Water-stage recorder and phone telemeter. Datum of gage is 647.00 ft above NGVD of 1929 (646.73 ft NAVD 1988). |
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EXTREMES FOR PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 1,750 ft3/s, July 18, 1996, gage height, 10.77 ft; minimum daily, no flow, Oct. 11, 1988, Aug. 25, 2003 and Sept. 24, 26-28, 2004. |
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REMARKS FOR CURRENT YEAR.-- Records good except those for estimated daily discharges, which are poor. |
Discharge, cubic feet per second, WATER YEAR OCTOBER 2004 TO SEPTEMBER 2005 DAILY MEAN VALUES |
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DAY | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP |
1 | 0.25 | 8.6 | 33 | 2.8 | 3.9 | 16 | 6.1 | 2.4 | 0.90 | 0.71 | 3.7 | 0.08 |
2 | 0.66 | 16 | 26 | 25 | 4.0 | 12 | 9.9 | 2.3 | 1.0 | 0.69 | 2.9 | 0.05 |
3 | 0.54 | 9.8 | 23 | 25 | 3.8 | 10 | 6.3 | 2.2 | 1.1 | 0.41 | 1.9 | 0.05 |
4 | 0.43 | 18 | 20 | 28 | 4.3 | 9.4 | 5.5 | 2.1 | 1.4 | 0.35 | 1.2 | 0.03 |
5 | 0.40 | 17 | 15 | 22 | 7.3 | 8.4 | 4.9 | 1.8 | 3.1 | 0.31 | 0.74 | 0.03 |
6 | 0.36 | 13 | 20 | 19 | 8.8 | 7.5 | 4.6 | 6.5 | 2.7 | 0.28 | 0.50 | 0.03 |
7 | 0.30 | 12 | 50 | 15 | 17 | 7.8 | 4.5 | 2.7 | 2.0 | 0.33 | 0.36 | 0.02 |
8 | 1.8 | 8.3 | 46 | 13 | 17 | 6.9 | 3.8 | 1.8 | 1.7 | 0.21 | 0.26 | 0.03 |
9 | 2.8 | 6.5 | 27 | 12 | 13 | 6.2 | 3.3 | 2.0 | 1.3 | 0.18 | 0.19 | 0.03 |
10 | 1.6 | 5.4 | 22 | 10 | 11 | 5.9 | 3.0 | 2.1 | 1.2 | 0.14 | 0.14 | 0.02 |
11 | 1.0 | 4.4 | 17 | 12 | 10 | 6.1 | 2.9 | 2.8 | 1.1 | 0.12 | 0.70 | 0.02 |
12 | 1.1 | 3.4 | 14 | 72 | 8.9 | 6.0 | 20 | 3.1 | 0.93 | 0.12 | 1.4 | 0.01 |
13 | 1.5 | 2.8 | 12 | 163 | 15 | 5.7 | 27 | 3.0 | 0.87 | 0.09 | 1.6 | 0.01 |
14 | 1.4 | 2.4 | 11 | 95 | 54 | 5.7 | 16 | 2.9 | 1.3 | 0.09 | 1.4 | 0.07 |
15 | 1.5 | 2.1 | e8.0 | 42 | 37 | 6.5 | 13 | 2.9 | 1.2 | 0.08 | 1.1 | 0.11 |
16 | 1.3 | 2.1 | 7.4 | 22 | 39 | 5.1 | 10 | 2.7 | 1.1 | 0.08 | 0.88 | 0.48 |
17 | 1.1 | 3.5 | 6.5 | e18 | 27 | 4.7 | 8.8 | 2.4 | 0.92 | 0.17 | 0.72 | 0.14 |
18 | 1.1 | 2.3 | 5.9 | e15 | 20 | 4.5 | 7.2 | 2.0 | 0.69 | 0.08 | 0.50 | 0.22 |
19 | 1.1 | 9.3 | 5.4 | 12 | 16 | 4.8 | 5.8 | 5.2 | 0.49 | 0.04 | 0.54 | 0.67 |
20 | 0.94 | 12 | 4.7 | 11 | 18 | 4.6 | 4.8 | 7.3 | 0.42 | 0.74 | 1.2 | 0.65 |
21 | 0.91 | 11 | 4.1 | 9.9 | 20 | 4.1 | 3.8 | 6.0 | 0.40 | 0.49 | 1.4 | 0.50 |
22 | 0.85 | 8.5 | 3.7 | e9.8 | 16 | 3.9 | 5.6 | 4.9 | 0.55 | 0.16 | 1.1 | 0.37 |
23 | 4.0 | 7.1 | 3.4 | e9.0 | 15 | 3.7 | 6.0 | 3.7 | 0.48 | 0.25 | 0.85 | 0.36 |
24 | 3.4 | 6.7 | e3.0 | 8.0 | 13 | 3.4 | 5.1 | 2.6 | 0.34 | 0.19 | 0.63 | 2.0 |
25 | 2.3 | 8.8 | e2.9 | e7.8 | 11 | 8.1 | 4.4 | 2.3 | 0.25 | 1.6 | 0.52 | 3.9 |
26 | 2.1 | 7.7 | e3.0 | 7.2 | 9.4 | 10 | 4.0 | 2.0 | 0.43 | 10 | 0.52 | 2.7 |
27 | 1.9 | 25 | e3.0 | 6.4 | 8.6 | 8.0 | 3.5 | 1.5 | 0.33 | 16 | 0.45 | 2.1 |
28 | 1.5 | 31 | e3.0 | e6.0 | 18 | 6.9 | 3.1 | 1.4 | 0.28 | 7.6 | 0.36 | 2.4 |
29 | 2.4 | 27 | e3.1 | e5.6 | --- | 6.1 | 2.7 | 1.4 | 0.22 | 7.0 | 0.21 | 4.0 |
30 | 1.8 | 25 | 3.0 | e5.2 | --- | 5.5 | 2.5 | 1.1 | 0.49 | 5.7 | 0.16 | 3.2 |
31 | 1.2 | --- | 3.2 | 4.6 | --- | 5.8 | --- | 1.0 | --- | 5.0 | 0.11 | --- |
TOTAL | 43.54 | 316.7 | 409.3 | 713.3 | 446.0 | 209.3 | 208.1 | 88.1 | 29.19 | 59.21 | 28.24 | 24.28 |
MEAN | 1.40 | 10.6 | 13.2 | 23.0 | 15.9 | 6.75 | 6.94 | 2.84 | 0.97 | 1.91 | 0.91 | 0.81 |
MAX | 4.0 | 31 | 50 | 163 | 54 | 16 | 27 | 7.3 | 3.1 | 16 | 3.7 | 4.0 |
MIN | 0.25 | 2.1 | 2.9 | 2.8 | 3.8 | 3.4 | 2.5 | 1.0 | 0.22 | 0.04 | 0.11 | 0.01 |
CFSM | 0.14 | 1.07 | 1.33 | 2.32 | 1.61 | 0.68 | 0.70 | 0.29 | 0.10 | 0.19 | 0.09 | 0.08 |
IN. | 0.16 | 1.19 | 1.54 | 2.68 | 1.68 | 0.79 | 0.78 | 0.33 | 0.11 | 0.22 | 0.11 | 0.09 |
e Estimated |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1988 - 2005, BY WATER YEAR (WY) | ||||||||||||
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MEAN | 6.27 | 10.2 | 8.25 | 10.6 | 12.0 | 12.8 | 15.7 | 14.5 | 11.9 | 10.2 | 6.75 | 4.97 |
MAX | 42.9 | 20.6 | 22.6 | 30.7 | 44.3 | 26.1 | 34.0 | 46.3 | 31.3 | 78.1 | 27.6 | 18.2 |
(WY) | 2002 | 2004 | 1988 | 1993 | 1997 | 1990 | 1993 | 1990 | 1993 | 1996 | 1998 | 2001 |
MIN | 0.70 | 0.58 | 0.69 | 0.57 | 0.57 | 2.36 | 3.47 | 1.57 | 0.78 | 0.39 | 0.22 | 0.36 |
(WY) | 1993 | 2000 | 1990 | 2003 | 2003 | 2000 | 2003 | 1989 | 1988 | 1988 | 1991 | 1988 |
SUMMARY STATISTICS | FOR 2004 CALENDAR YEAR | FOR 2005 WATER YEAR | WATER YEARS 1988 - 2005 | |||
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ANNUAL TOTAL | 3322.74 | 2575.26 | ||||
ANNUAL MEAN | 9.08 | 7.06 | 10.3 | |||
HIGHEST ANNUAL MEAN | 15.7 | 1993 | ||||
LOWEST ANNUAL MEAN | 4.82 | 2003 | ||||
HIGHEST DAILY MEAN | 137 | Jun 12 | 163 | Jan 13 | 1370 | Jul 18 1996 |
LOWEST DAILY MEAN | 0.00 | Sep 24,26-28 | 0.01 | Sep 12,13 | 0.00 | A |
ANNUAL SEVEN-DAY MINIMUM | 0.02 | Sep 22 | 0.02 | Sep 7 | 0.02 | Sep 7 2005 |
MAXIMUM PEAK FLOW | 195 | Jan 13 | 1750 | Jul 18 1996 | ||
MAXIMUM PEAK STAGE | 6.26 | Jan 13 | 10.77 | Jul 18 1996 | ||
INSTANTANEOUS LOW FLOW | 0.00 | Sep 13,14 | ||||
ANNUAL RUNOFF (CFSM) | 0.917 | 0.713 | 1.04 | |||
ANNUAL RUNOFF (INCHES) | 12.49 | 9.68 | 14.17 | |||
10 PERCENT EXCEEDS | 21 | 17 | 25 | |||
50 PERCENT EXCEEDS | 3.8 | 3.1 | 4.8 | |||
90 PERCENT EXCEEDS | 1.2 | 0.22 | 0.66 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |