LOCATION.-- Lat 41°50'50", long 87°56'13" (NAD of 1927), in SE1/4SW1/4 sec.24, T.39 N., R.11 E., Du Page County, Hydrologic Unit 07120004, on left bank at downstream side of bridge on 22nd Street in Oak Brook and at mile 14.9. |
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DRAINAGE AREA.-- 103 mi2. |
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PERIOD OF RECORD.-- |
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STAGE: June 1994 to current year. |
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PRECIPITATION: October 1995 to current year. |
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GAGE.-- Water-stage recorder and an unheated, tipping-bucket rain gage. Datum of gage is 600.00 ft above NGVD of 1929. |
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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. |
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EXTREMES FOR PERIOD OF RECORD.-- |
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STAGE: Maximum gage height, 55.03 ft, Feb. 21, 1997; minimum, 46.76 ft, Sept. 27, 28, 1995. |
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PRECIPITATION: Maximum daily total, 3.38 in., September 11, 2000, but may have been greater during periods of missing record. |
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EXTREMES FOR CURRENT YEAR.-- Maximum gage height, 54.76 ft, Oct. 13; minimum, 46.92 ft, Jan. 9. |
GAGE HEIGHT, in FEET, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002 DAILY MEAN VALUES |
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DAY | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP |
1 | 48.82 | 49.13 | 49.25 | 48.22 | 47.67 | 48.00 | 48.36 | 48.16 | 47.51 | 47.13 | 47.92 | 48.20 |
2 | 48.64 | 48.99 | 48.94 | 48.18 | 47.64 | 48.14 | 48.53 | 49.00 | 47.56 | 47.26 | 47.95 | 48.79 |
3 | 48.53 | 48.83 | 48.74 | 48.21 | 47.53 | 48.34 | 48.39 | 49.67 | 47.52 | 47.10 | 47.85 | 49.20 |
4 | 48.77 | 48.72 | 48.57 | 48.18 | 47.46 | 48.29 | 48.34 | 49.02 | 51.01 | 47.10 | 47.93 | 49.01 |
5 | 49.96 | 48.64 | 48.47 | 48.17 | 47.35 | 48.21 | 48.28 | 48.41 | 52.87 | 47.44 | 48.31 | 48.68 |
6 | 49.36 | 48.61 | 48.43 | 48.18 | 47.27 | 48.24 | 48.02 | 48.17 | 52.87 | 47.81 | 48.09 | 48.50 |
7 | 48.98 | 48.58 | 48.37 | 48.20 | 47.30 | 48.50 | 48.28 | 47.97 | 51.20 | 47.81 | 47.95 | 48.35 |
8 | 48.74 | 48.53 | 48.32 | 47.52 | 47.39 | 49.73 | 49.38 | 47.76 | 49.73 | 47.88 | 47.90 | 48.29 |
9 | 48.39 | 48.51 | 48.27 | 47.03 | 47.66 | 51.57 | 51.15 | 48.16 | 49.16 | 50.18 | 47.86 | 48.26 |
10 | 48.26 | 48.47 | 48.25 | 47.03 | 48.43 | 51.34 | 50.95 | 48.03 | 49.23 | 49.09 | 47.85 | 48.25 |
11 | 48.36 | 48.45 | 48.22 | 47.13 | 48.58 | 50.20 | 49.94 | 49.19 | --- | 48.48 | 47.84 | 48.21 |
12 | 49.04 | 48.44 | 48.26 | 47.02 | 48.33 | 49.33 | 49.16 | 52.70 | --- | 48.21 | 47.83 | 48.18 |
13 | 51.31 | 48.42 | 48.79 | 47.03 | 48.07 | 49.01 | 48.78 | 52.83 | 48.73 | 48.03 | 48.58 | 48.16 |
14 | 54.17 | 48.54 | 48.87 | 47.04 | 47.83 | 48.62 | 48.49 | 51.36 | 48.85 | 48.01 | 50.26 | 48.10 |
15 | 54.05 | 48.49 | 48.77 | 47.04 | 47.69 | 48.38 | 48.34 | 49.60 | --- | 48.08 | 49.94 | 47.82 |
16 | 52.70 | 48.47 | 48.66 | 47.06 | 47.59 | 48.19 | 48.31 | 49.70 | --- | 48.04 | 48.88 | 47.83 |
17 | 51.21 | 48.43 | 48.74 | 47.15 | 47.53 | 48.09 | 48.57 | 50.58 | --- | 47.88 | 48.37 | 47.81 |
18 | 50.06 | 48.41 | 48.66 | 47.21 | 47.44 | 48.05 | --- | 50.33 | --- | 47.93 | 48.15 | 48.03 |
19 | 49.56 | 48.56 | 48.67 | 47.18 | 47.85 | 48.06 | 48.19 | 49.56 | --- | 47.86 | 48.15 | 48.03 |
20 | 49.35 | 48.50 | 48.65 | 47.15 | 49.02 | 48.04 | 48.65 | 49.12 | 47.72 | 47.92 | 48.39 | 48.67 |
21 | 49.14 | 48.35 | 48.59 | 47.16 | 49.60 | 48.00 | 48.65 | 48.81 | 47.62 | 47.87 | 48.43 | 48.76 |
22 | 49.04 | 48.16 | 48.53 | 47.18 | 49.20 | 47.94 | 48.96 | 48.56 | 47.66 | 47.90 | 51.79 | 48.69 |
23 | 50.78 | 48.13 | 48.63 | 47.21 | 48.63 | 47.83 | 48.69 | 48.30 | 47.47 | 47.86 | 52.91 | 48.73 |
24 | 52.27 | 48.27 | 48.61 | 47.25 | 48.24 | 47.80 | 48.48 | 48.29 | 47.37 | 47.89 | 52.36 | 48.42 |
25 | 52.52 | 48.68 | 48.49 | 47.26 | 48.11 | 47.78 | 48.52 | 48.28 | 47.63 | 47.85 | 51.03 | 48.19 |
26 | 51.49 | 48.75 | 48.41 | 47.23 | 48.16 | 47.80 | 48.17 | 48.19 | 47.48 | 47.92 | 49.85 | 48.06 |
27 | 50.24 | 48.81 | 48.38 | 47.21 | 48.15 | 47.78 | 48.42 | 48.05 | 47.38 | 48.02 | 49.38 | 48.00 |
28 | 49.48 | 48.69 | 48.34 | 47.22 | 48.02 | 47.77 | 49.16 | --- | 47.35 | 48.01 | 49.08 | 47.96 |
29 | 49.15 | 48.75 | 48.30 | 47.22 | --- | 48.39 | 48.82 | --- | 47.18 | 48.06 | 48.81 | 48.08 |
30 | 49.28 | 49.09 | 48.27 | 47.22 | --- | 48.81 | 48.47 | --- | 47.23 | 48.02 | 48.62 | 48.09 |
31 | 49.29 | --- | 48.23 | 47.39 | --- | 48.51 | --- | 47.73 | --- | 47.93 | 48.40 | --- |
MEAN | 50.03 | 48.58 | 48.54 | 47.40 | 47.99 | 48.54 | --- | --- | --- | 47.95 | 48.92 | 48.31 |
MAX | 54.17 | 49.13 | 49.25 | 48.22 | 49.60 | 51.57 | --- | --- | --- | 50.18 | 52.91 | 49.20 |
MIN | 48.26 | 48.13 | 48.22 | 47.02 | 47.27 | 47.77 | --- | --- | --- | 47.10 | 47.83 | 47.81 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |