LOCATION.-- Lat 38°49'28", long 89°58'29" (NAD of 1927), in NW1/4SE1/4 sec.3, T.4 N., R.8 W., Madison County, Hydrologic Unit 07140101, on right bank at upstream side of bridge on State Highway 143 in Edwardsville, and at mile 9.4. |
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DRAINAGE AREA.-- 212 mi2. |
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PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE |
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DISCHARGE: August 1969 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: Water years 1978-91. |
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REVISED RECORDS.-- WDR IL-75-1: Drainage area. |
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GAGE.-- Water-stage recorder, phone telemeter, and crest-stage gage. Datum of gage is 425.62 ft above NGVD of 1929. Apr. 8, 1983, to July 2, 1985, nonrecording gage at same site and datum. |
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EXTREMES FOR PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 8,310 ft3/s, May 13, 2002, gage height, 23.42 ft; Maximum gage height, 24.74 ft, Apr. 12, 1979; no flow many days in 1987-88, 1991. |
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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 2002 TO SEPTEMBER 2003 DAILY MEAN VALUES |
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DAY | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP |
1 | 4.3 | 20 | 6.2 | 60 | e9.5 | e28 | 37 | 69 | 33 | 29 | 13 | 1880 |
2 | 4.2 | 16 | 5.9 | 47 | e12 | e25 | 33 | 58 | 31 | 26 | 12 | 2230 |
3 | 11 | 13 | e5.2 | 40 | e17 | e28 | 30 | 50 | 55 | 23 | 58 | 438 |
4 | 12 | 10 | e5.0 | 31 | 27 | e35 | 30 | 149 | 52 | 23 | 55 | 145 |
5 | 11 | 12 | e4.7 | 34 | 23 | 45 | 57 | 902 | 40 | 18 | 24 | e65 |
6 | 12 | 13 | e4.5 | 33 | 16 | 40 | 46 | 338 | 37 | 16 | 15 | e40 |
7 | 10 | 17 | e4.6 | 34 | 13 | 34 | 65 | 424 | 49 | 14 | 11 | e25 |
8 | 8.5 | 16 | e4.8 | 42 | e10 | 30 | 59 | 249 | 39 | 12 | e10 | e16 |
9 | 7.3 | 16 | e4.9 | 37 | e9.4 | 29 | 44 | 1860 | 29 | 10 | e9.0 | e11 |
10 | 6.5 | 15 | e5.0 | 30 | e9.0 | 24 | 37 | 2300 | 392 | 26 | e8.2 | e9.0 |
11 | 6.2 | 13 | e5.2 | 23 | e9.4 | 22 | 32 | 2060 | 388 | 33 | e7.2 | e8.0 |
12 | 6.0 | 12 | e5.4 | e17 | e10 | 26 | 29 | 367 | 462 | 17 | e6.4 | e10 |
13 | 5.2 | 12 | e5.8 | e15 | e12 | 259 | 26 | 187 | 1570 | 13 | e5.6 | e12 |
14 | 4.6 | 9.7 | e6.6 | e14 | e24 | 238 | 24 | 138 | 316 | 11 | e5.2 | e14 |
15 | 4.9 | 15 | 7.0 | e13 | 263 | 113 | 23 | 109 | 156 | 9.3 | e4.6 | e11 |
16 | 4.7 | 12 | 7.2 | e12 | 267 | 78 | 27 | 93 | 93 | 8.6 | e4.2 | e9.0 |
17 | 3.7 | 11 | 7.2 | e11 | 96 | 63 | 83 | 80 | 65 | 8.0 | e4.0 | e7.5 |
18 | 4.8 | 11 | 22 | e10 | 103 | 54 | 73 | 76 | 51 | 501 | e3.8 | e6.8 |
19 | 15 | 10 | 195 | e9.5 | 212 | 88 | 51 | 69 | 47 | 533 | e3.7 | e7.4 |
20 | 10 | 9.3 | 99 | e8.8 | 326 | 376 | 88 | 62 | 39 | 118 | e3.6 | e10 |
21 | 11 | 8.8 | 50 | e8.2 | 165 | 218 | 98 | 118 | 32 | 58 | e4.6 | e8.0 |
22 | 12 | 8.2 | 32 | e7.4 | 110 | 133 | 64 | 62 | 25 | 34 | e4.8 | e7.4 |
23 | 13 | 7.7 | 24 | e6.8 | 97 | 83 | 47 | 47 | 22 | 22 | e4.0 | e5.0 |
24 | 12 | 7.6 | e18 | e6.4 | 71 | 65 | 68 | 40 | 19 | 16 | e3.6 | e4.0 |
25 | 23 | 7.7 | e15 | e6.0 | 57 | 55 | 279 | 176 | 25 | 13 | e3.1 | e5.0 |
26 | 44 | 7.5 | e12 | e5.8 | e43 | 49 | 172 | 111 | 719 | 11 | e2.7 | e7.0 |
27 | 29 | 7.3 | e11 | e5.6 | e36 | 42 | 97 | 63 | 203 | 9.5 | e2.5 | e10 |
28 | 18 | 7.0 | e12 | e5.5 | e31 | 46 | 77 | 51 | 82 | 11 | e2.3 | e7.5 |
29 | 45 | 6.9 | e14 | e5.8 | --- | 62 | 119 | 52 | 50 | 52 | e2.5 | e5.5 |
30 | 32 | 6.6 | e19 | e6.5 | --- | 52 | 97 | 44 | 36 | 35 | e9.0 | e4.5 |
31 | 28 | --- | 58 | e8.0 | --- | 43 | --- | 42 | --- | 18 | e40 | --- |
TOTAL | 418.9 | 338.3 | 676.2 | 593.3 | 2078.3 | 2483 | 2012 | 10446 | 5157 | 1728.4 | 342.6 | 5018.6 |
MEAN | 13.5 | 11.3 | 21.8 | 19.1 | 74.2 | 80.1 | 67.1 | 337 | 172 | 55.8 | 11.1 | 167 |
MAX | 45 | 20 | 195 | 60 | 326 | 376 | 279 | 2300 | 1570 | 533 | 58 | 2230 |
MIN | 3.7 | 6.6 | 4.5 | 5.5 | 9.0 | 22 | 23 | 40 | 19 | 8.0 | 2.3 | 4.0 |
CFSM | 0.06 | 0.05 | 0.10 | 0.09 | 0.35 | 0.38 | 0.32 | 1.59 | 0.81 | 0.26 | 0.05 | 0.79 |
IN. | 0.07 | 0.06 | 0.12 | 0.10 | 0.36 | 0.44 | 0.35 | 1.83 | 0.90 | 0.30 | 0.06 | 0.88 |
e Estimated |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1969 - 2003, BY WATER YEAR (WY) | ||||||||||||
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MEAN | 45.9 | 99.6 | 169 | 157 | 219 | 286 | 317 | 237 | 142 | 54.8 | 31.3 | 46.5 |
MAX | 366 | 649 | 915 | 834 | 782 | 1120 | 1251 | 1511 | 562 | 409 | 186 | 486 |
(WY) | 1970 | 1986 | 1983 | 1974 | 1985 | 1978 | 1994 | 2002 | 1998 | 2000 | 2000 | 1993 |
MIN | 0.82 | 1.05 | 1.08 | 1.21 | 14.7 | 12.0 | 12.0 | 15.0 | 2.04 | 1.18 | 1.05 | 0.15 |
(WY) | 1996 | 1981 | 1990 | 1977 | 2000 | 2000 | 2000 | 1988 | 1988 | 1988 | 1991 | 1988 |
SUMMARY STATISTICS | FOR 2002 CALENDAR YEAR | FOR 2003 WATER YEAR | WATER YEARS 1969 - 2003 | |||
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ANNUAL TOTAL | 92044.6 | 31292.6 | ||||
ANNUAL MEAN | 252 | 85.7 | 150 | |||
HIGHEST ANNUAL MEAN | 297 | 1985 | ||||
LOWEST ANNUAL MEAN | 32.4 | 1980 | ||||
HIGHEST DAILY MEAN | 7700 | May 13 | 2300 | May 10 | 7700 | May 13 2002 |
LOWEST DAILY MEAN | 3.7 | Oct 17 | 2.3 A | Aug 28 | 0.00 | B |
ANNUAL SEVEN-DAY MINIMUM | 4.8 | Dec 4 | 3.0 | Aug 23 | 0.00 | Aug 29 1987 |
MAXIMUM PEAK FLOW | 3880 | Sep 1 | 8310 C | May 13 2002 | ||
MAXIMUM PEAK STAGE | 15.29 | Sep 1 | 24.74 D | Apr 12 1979 | ||
ANNUAL RUNOFF (CFSM) | 1.19 | 0.40 | 0.71 | |||
ANNUAL RUNOFF (INCHES) | 16.15 | 5.49 | 9.60 | |||
10 PERCENT EXCEEDS | 492 | 147 | 273 | |||
50 PERCENT EXCEEDS | 29 | 23 | 27 | |||
90 PERCENT EXCEEDS | 5.9 | 5.2 | 2.2 |
A - Estimated, but may have been less during period of estimated discharges in August. |
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Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |