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LOCATION.-- Lat 41°51'23", long 88°12'15" (NAD of 1927), in NW1/4NW1/4 sec.22, T.39 N., R.9 E., Du Page County, Hydrologic Unit 07120004, on left downstream side of bridge at intersection of Wilson Street and Joliet Road, 0.5 mi south of West Chicago, and at mile 0.5. |
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DRAINAGE AREA.-- 18.1 mi2. |
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PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE |
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DISCHARGE: November 1985 to current year. |
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STAGE: Water years 1994-2002. |
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PARTIAL RECORD: Annual maximum, water years 1961-80. |
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PRECIPITATION: April 1986 to current year. |
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REVISED RECORDS.-- WDR IL-77-1: 1961-76(M). |
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GAGE.-- Water-stage recorder, phone telemeter, rain gage, and crest-stage gage. Datum of gage is 700.00 ft above NGVD of 1929. Prior to November 8, 1985 at datum 5.44 ft higher. |
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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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SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 1,980 ft3/s, July 18, 1996, gage height, 9.24 ft; minimum discharge, .02 ft3/s, Sept. 1, 2, 9, 1988. |
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PRECIPITATION: Maximum daily total, 6.88 in., July 17, 1996, but may have been greater during periods of missing record. |
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EXTREMES FOR CURRENT YEAR.--Maximum daily total, 4.49 in., July 9. |
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PRECIPITATION (CR10), in INCHES, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002 DAILY SUM VALUES |
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| DAY | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP |
| 1 | 0.00 | 0.02 | 0.01 | 0.00 | 0.04 | 0.00 | 0.17 | 0.19 | 0.00 | 0.00 | 0.00 | 0.00 |
| 2 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.11 | 0.11 | 0.00 | 0.00 | 0.00 | 0.00 | 0.26 |
| 3 | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 | 0.00 | 0.00 | 0.00 | 0.37 | 0.00 | 0.00 | 0.00 |
| 4 | 1.27 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 2.17 | 0.00 | 1.05 | 0.00 |
| 5 | 0.14 | 0.00 | 0.05 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 0.00 |
| 6 | 0.00 | 0.00 | 0.00 | 0.00 | 0.07 | 0.00 | 0.00 | 0.03 | 0.00 | 0.00 | 0.00 | 0.00 |
| 7 | 0.00 | 0.00 | 0.00 | 0.00 | 0.11 | 0.00 | 0.44 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| 8 | 0.00 | 0.00 | 0.00 | 0.00 | 0.05 | 0.26 | 0.98 | 0.21 | 0.00 | 0.02 | 0.00 | 0.00 |
| 9 | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 | 0.49 | 0.04 | 0.28 | 0.00 | 4.49 | 0.00 | 0.00 |
| 10 | 0.20 | 0.00 | 0.00 | 0.00 | 0.09 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.12 |
| 11 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 2.24 | 0.08 | 0.00 | 0.00 | 0.00 |
| 12 | 0.58 | 0.00 | 0.60 | 0.00 | 0.00 | 0.00 | 0.00 | 0.51 | 0.00 | 0.00 | 0.00 | 0.00 |
| 13 | 3.36 | 0.05 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.42 | 0.00 | 2.36 | 0.00 |
| 14 | 0.11 | 0.27 | 0.03 | 0.05 | 0.00 | 0.00 | 0.00 | 0.00 | 0.12 | 0.00 | 0.01 | 0.00 |
| 15 | 0.06 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 |
| 16 | 0.01 | 0.00 | 0.13 | 0.00 | 0.00 | 0.00 | 0.00 | 1.01 | 0.00 | 0.00 | 0.03 | 0.00 |
| 17 | 0.00 | 0.00 | 0.04 | 0.00 | 0.00 | 0.00 | 0.03 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| 18 | 0.00 | 0.09 | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 | 0.00 | 0.00 | 0.00 | 0.00 | 0.15 |
| 19 | 0.00 | 0.11 | 0.10 | 0.00 | 0.71 | 0.01 | 0.34 | 0.00 | 0.00 | 0.00 | 0.09 | 0.30 |
| 20 | 0.00 | 0.00 | 0.00 | 0.01 | 0.46 | 0.03 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.45 |
| 21 | 0.00 | 0.00 | 0.01 | 0.03 | 0.01 | 0.00 | 0.31 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 |
| 22 | 0.47 | 0.00 | 0.16 | 0.13 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.99 | 0.24 |
| 23 | 0.58 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.09 | 0.00 | 0.00 | 0.11 | 0.00 |
| 24 | 0.42 | 0.56 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 |
| 25 | 0.00 | 0.07 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.21 | 0.00 | 0.01 | 0.00 | 0.00 |
| 26 | 0.00 | 0.02 | 0.00 | 0.00 | 0.00 | 0.02 | 0.00 | 0.00 | 0.10 | 0.07 | 0.00 | 0.00 |
| 27 | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.66 | 0.00 | 0.00 | 0.33 | 0.00 | 0.00 |
| 28 | 0.00 | 0.09 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.55 | 0.00 | 0.00 |
| 29 | 0.00 | 0.06 | 0.00 | 0.00 | --- | 0.61 | 0.00 | 0.00 | 0.00 | 0.08 | 0.00 | 0.08 |
| 30 | 0.02 | 0.35 | 0.00 | 0.00 | --- | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| 31 | 0.00 | --- | 0.00 | 0.07 | --- | 0.01 | --- | 0.00 | --- | 0.00 | 0.00 | --- |
| TOTAL | 7.23 | 1.71 | 1.15 | 0.29 | 1.60 | 1.55 | 3.69 | 4.80 | 3.26 | 5.55 | 5.65 | 1.61 |
| MEAN | 0.23 | 0.06 | 0.04 | 0.00 | 0.06 | 0.05 | 0.12 | 0.15 | 0.11 | 0.18 | 0.18 | 0.05 |
| MAX | 3.36 | 0.56 | 0.60 | 0.13 | 0.71 | 0.61 | 0.98 | 2.24 | 2.17 | 4.49 | 2.36 | 0.45 |
| CAL YR 2001 TOTAL 41.42 MEAN 0.11 MAX 3.36 | |
| WTR YR 2002 TOTAL 38.09 MEAN 0.10 MAX 4.49 |
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Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |