LOCATION.-- Lat 41°55'58", long 88°20'27" (NAD of 1983), 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. |
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DRAINAGE AREA.-- 51.7 mi2. |
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PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE |
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DISCHARGE: December 1960 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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MISCELLANEOUS: Water year 2000; contaminants in streambed sediments, water year 2000. |
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PRECIPITATION: August 2000 to current year. |
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BIOLOGICAL |
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ALGAE: Water year 2000. |
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BENTHIC MACROINVERTEBRATES: Water year 2000. |
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HABITAT: Water year 2000-01. |
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REVISED RECORDS.-- WDR IL-75-1: Drainage area. WDR IL-82-2: 1966(M), 1968(M), 1970-71(M), 1973(M), 1978-79(M). |
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GAGE.-- Water-stage recorder, phone telemeter, crest-stage gage, and rain gage. Datum of gage is 704.84 ft above NGVD of 1929 (704.61 ft NAVD 1988). |
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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, 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. |
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PRECIPITATION: Maximum recorded daily total, 3.27 in., August 13, 2002. |
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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 | 3.1 | 15 | 28 | 12 | e16 | 61 | 31 | 19 | 14 | 4.1 | 2.2 | 5.3 |
2 | 4.3 | 36 | 25 | 21 | e16 | 46 | 51 | 19 | 14 | 3.2 | 2.2 | 4.1 |
3 | 3.6 | 21 | 21 | 22 | e17 | 43 | 45 | 20 | 12 | 3.0 | 2.3 | 3.1 |
4 | 3.3 | 23 | 19 | 26 | 22 | 38 | 37 | 19 | 12 | 3.0 | 2.9 | 2.7 |
5 | 3.1 | 21 | 20 | 23 | 28 | 38 | 34 | 17 | 12 | 4.0 | 2.0 | 2.4 |
6 | 3.1 | 16 | 26 | e18 | 68 | 39 | 34 | 19 | 12 | 5.1 | 1.7 | 4.5 |
7 | 3.1 | 13 | 64 | e15 | 154 | 57 | 31 | 19 | 11 | 4.5 | 1.7 | 4.2 |
8 | 5.8 | 12 | 85 | e14 | 149 | 53 | 28 | 19 | 10 | 3.9 | 1.6 | 2.1 |
9 | 7.3 | 11 | 55 | e14 | 100 | 41 | 27 | 20 | 12 | 3.9 | 1.4 | 1.8 |
10 | 4.9 | 11 | 41 | e13 | 71 | 36 | 25 | 23 | 11 | 2.9 | 1.3 | 2.6 |
11 | 4.5 | 9.3 | e27 | 16 | 60 | 35 | 24 | 28 | 10 | 2.4 | 1.4 | 2.2 |
12 | 5.7 | 11 | e22 | 47 | 57 | 31 | 38 | 38 | 10 | 2.2 | 1.9 | 1.7 |
13 | 5.9 | 12 | e18 | 433 | 72 | 27 | 50 | 31 | 9.9 | 2.7 | 6.6 | 1.4 |
14 | 6.0 | 10 | e16 | 232 | 217 | 25 | 40 | 28 | 9.4 | 2.7 | 5.3 | 1.5 |
15 | 5.3 | 9.1 | e13 | 143 | 175 | 26 | 32 | 20 | 8.4 | 2.4 | 4.0 | 1.8 |
16 | 5.3 | 8.0 | e11 | e90 | 124 | 27 | 29 | 17 | 8.7 | 2.0 | 3.1 | 1.6 |
17 | 5.6 | 11 | e9.3 | e70 | 89 | 28 | 28 | 15 | 7.1 | 1.7 | 2.9 | 2.9 |
18 | 5.7 | 11 | e8.4 | e54 | 67 | 26 | 28 | 16 | 5.6 | 1.5 | 4.8 | 2.6 |
19 | 4.9 | 17 | e7.5 | e46 | 56 | 29 | 27 | 46 | 4.6 | 1.4 | 5.6 | 5.2 |
20 | 4.6 | 21 | e7.0 | e38 | 52 | 30 | 25 | 54 | 4.5 | 1.4 | 36 | 2.9 |
21 | 4.9 | 14 | e6.4 | e30 | 66 | 27 | 24 | 39 | 3.9 | 1.5 | 27 | 2.5 |
22 | 4.9 | 12 | e6.1 | e27 | 59 | 27 | 33 | 32 | 3.7 | 3.2 | 11 | 1.1 |
23 | 27 | 13 | e5.8 | e24 | 49 | 27 | 41 | 26 | 3.6 | 2.8 | 7.6 | 1.6 |
24 | 21 | 11 | e5.7 | e23 | 44 | 28 | 33 | 21 | 3.7 | 2.8 | 6.8 | 1.6 |
25 | 12 | 15 | e5.6 | e21 | 40 | 38 | 29 | 18 | 3.7 | 2.4 | 5.7 | 1.4 |
26 | 9.0 | 13 | e5.6 | e20 | 39 | 44 | 27 | 15 | 3.3 | 2.3 | 5.2 | 2.2 |
27 | 8.8 | 24 | e5.6 | e19 | 36 | 37 | 25 | 14 | 3.1 | 2.5 | 4.9 | 3.5 |
28 | 9.2 | 65 | e5.6 | e18 | 62 | 35 | 24 | 14 | 2.9 | 2.7 | 4.6 | 2.5 |
29 | 11 | 36 | e5.7 | e18 | --- | 32 | 22 | 14 | 3.3 | 2.6 | 3.9 | 4.8 |
30 | 13 | 29 | e5.9 | e17 | --- | 32 | 25 | 15 | 4.4 | 2.4 | 5.1 | 5.6 |
31 | 12 | --- | e7.6 | e16 | --- | 40 | --- | 16 | --- | 2.3 | 6.4 | --- |
TOTAL | 227.9 | 530.4 | 588.8 | 1580 | 2005 | 1103 | 947 | 711 | 233.8 | 85.5 | 179.1 | 83.4 |
MEAN | 7.35 | 17.7 | 19.0 | 51.0 | 71.6 | 35.6 | 31.6 | 22.9 | 7.79 | 2.76 | 5.78 | 2.78 |
MAX | 27 | 65 | 85 | 433 | 217 | 61 | 51 | 54 | 14 | 5.1 | 36 | 5.6 |
MIN | 3.1 | 8.0 | 5.6 | 12 | 16 | 25 | 22 | 14 | 2.9 | 1.4 | 1.3 | 1.1 |
CFSM | 0.14 | 0.34 | 0.37 | 0.99 | 1.39 | 0.69 | 0.61 | 0.44 | 0.15 | 0.05 | 0.11 | 0.05 |
IN. | 0.16 | 0.38 | 0.42 | 1.14 | 1.44 | 0.79 | 0.68 | 0.51 | 0.17 | 0.06 | 0.13 | 0.06 |
e Estimated |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1961 - 2005, BY WATER YEAR (WY) | ||||||||||||
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MEAN | 21.7 | 35.4 | 36.0 | 35.7 | 50.6 | 68.4 | 68.6 | 57.3 | 48.0 | 24.5 | 24.5 | 22.2 |
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 2004 CALENDAR YEAR | FOR 2005 WATER YEAR | WATER YEARS 1961 - 2005 | |||
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ANNUAL TOTAL | 15021.3 | 8274.9 | ||||
ANNUAL MEAN | 41.0 | 22.7 | 41.5 | |||
HIGHEST ANNUAL MEAN | 76.7 | 1993 | ||||
LOWEST ANNUAL MEAN | 8.72 | 1977 | ||||
HIGHEST DAILY MEAN | 859 | May 22 | 433 | Jan 13 | 1620 | Feb 21 1997 |
LOWEST DAILY MEAN | 2.7 | Sep 30 | 1.1 | Sep 22 | 0.10 | A |
ANNUAL SEVEN-DAY MINIMUM | 2.9 | Sep 24 | 1.6 | Aug 6 | 0.23 | Aug 26 1961 |
MAXIMUM PEAK FLOW | 541 | Jan 13 | 2580 | BC Feb 21 1997 | ||
MAXIMUM PEAK STAGE | 4.51 | Jan 13 | 9.66 D | Feb 8 1965 | ||
INSTANTANEOUS LOW FLOW | 0.95 | Sep 22,23 | 0.10 | E | ||
ANNUAL RUNOFF (CFSM) | 0.794 | 0.439 | 0.802 | |||
ANNUAL RUNOFF (INCHES) | 10.81 | 5.95 | 10.90 | |||
10 PERCENT EXCEEDS | 85 | 46 | 87 | |||
50 PERCENT EXCEEDS | 14 | 14 | 22 | |||
90 PERCENT EXCEEDS | 5.6 | 2.4 | 4.3 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |