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 1994-2002. |
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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, in CFS, 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 | 1.6 | e33 | 477 | e30 | 3380 | e66 | 222 | 492 | e54 | 13 | 10 | 6.6 |
2 | 2.2 | 30 | 187 | e26 | 592 | 361 | 183 | 1670 | e48 | 12 | 7.1 | 5.9 |
3 | 2.6 | 26 | 123 | e24 | 344 | 615 | 147 | 492 | e43 | 11 | 6.2 | 5.7 |
4 | 2.7 | 24 | 91 | e23 | 239 | 268 | 122 | 235 | 37 | 11 | 5.4 | 5.7 |
5 | 6.5 | 22 | 74 | e22 | 173 | 188 | 109 | 168 | 44 | 10 | 4.9 | 5.4 |
6 | 6.0 | 20 | 67 | e22 | 147 | 188 | 98 | 2790 | 53 | 10 | 5.8 | 5.3 |
7 | 16 | 19 | 56 | e22 | 132 | 173 | 93 | 6150 | 48 | 9.6 | 6.3 | 4.8 |
8 | 20 | 19 | 50 | e23 | 116 | 152 | 346 | 6790 | 37 | 8.8 | 9.7 | 4.8 |
9 | 19 | 19 | 42 | e24 | 106 | 1060 | 456 | 3580 | 32 | 8.4 | 6.8 | 5.2 |
10 | 130 | 17 | 37 | e26 | 102 | 823 | 245 | 1190 | 130 | 9.3 | 6.4 | 5.2 |
11 | 188 | 19 | 34 | e28 | 95 | 304 | 168 | 394 | 729 | 9.3 | 31 | 4.8 |
12 | 929 | 17 | 48 | 32 | 87 | 216 | 189 | 2840 | 895 | 9.6 | 87 | 4.7 |
13 | 434 | 15 | 310 | 32 | 76 | 173 | 173 | 7700 | 433 | 49 | 18 | 5.4 |
14 | 540 | 15 | 829 | 32 | 67 | 148 | 146 | 6130 | 149 | 18 | 12 | 5.6 |
15 | 205 | 16 | 671 | 29 | 66 | 164 | 124 | 739 | 88 | 11 | 10 | 6.1 |
16 | 474 | 15 | 1200 | 27 | 62 | 460 | 103 | 542 | 62 | 9.0 | 10 | 8.2 |
17 | 255 | 15 | 3420 | 26 | 55 | 268 | 88 | 1530 | 50 | 8.1 | 24 | 23 |
18 | 130 | 15 | 1650 | 23 | 53 | 187 | 77 | 1540 | 40 | 7.9 | 37 | 46 |
19 | 97 | 15 | 394 | 27 | 81 | 200 | 160 | 450 | 34 | 23 | 318 | 49 |
20 | 79 | 15 | 233 | 27 | 298 | 446 | 2040 | 256 | 29 | 13 | 181 | 558 |
21 | 70 | 15 | 168 | 27 | 215 | 321 | 1940 | 187 | 26 | 9.3 | 55 | 185 |
22 | 61 | 15 | 139 | 26 | 134 | 182 | 621 | 153 | 24 | 7.8 | 28 | 67 |
23 | 68 | 14 | 128 | 29 | 103 | 145 | 305 | 130 | 22 | 9.2 | 45 | 33 |
24 | 246 | 115 | 106 | 42 | 89 | 131 | 212 | 117 | 21 | 9.3 | 254 | 19 |
25 | 404 | 172 | 83 | 38 | e74 | 1050 | 1000 | 113 | 48 | 13 | 74 | 13 |
26 | 184 | 73 | 72 | 32 | e67 | 883 | 403 | 96 | 24 | 42 | 35 | 9.9 |
27 | 118 | 45 | e60 | 30 | e64 | 772 | 809 | 84 | 20 | 98 | 21 | 7.9 |
28 | e80 | 102 | e50 | 28 | e61 | 1300 | 1880 | 78 | 18 | 33 | 14 | 6.7 |
29 | e58 | 213 | e44 | 30 | --- | 964 | 519 | 75 | 16 | 18 | 10 | 6.0 |
30 | e45 | 968 | e38 | 165 | --- | 503 | 279 | 68 | 14 | 11 | 8.6 | 5.2 |
31 | e38 | --- | e33 | 3180 | --- | 318 | --- | 61 | --- | 8.9 | 7.4 | --- |
TOTAL | 4909.6 | 2118 | 10914 | 4152 | 7078 | 13029 | 13257 | 46840 | 3268 | 520.5 | 1348.6 | 1118.1 |
MEAN | 158.4 | 70.60 | 352.1 | 133.9 | 252.8 | 420.3 | 441.9 | 1511 | 108.9 | 16.79 | 43.50 | 37.27 |
MAX | 929 | 968 | 3420 | 3180 | 3380 | 1300 | 2040 | 7700 | 895 | 98 | 318 | 558 |
MIN | 1.6 | 14 | 33 | 22 | 53 | 66 | 77 | 61 | 14 | 7.8 | 4.9 | 4.7 |
CFSM | 0.75 | 0.33 | 1.66 | 0.63 | 1.19 | 1.98 | 2.08 | 7.13 | 0.51 | 0.08 | 0.21 | 0.18 |
IN. | 0.86 | 0.37 | 1.92 | 0.73 | 1.24 | 2.29 | 2.33 | 8.22 | 0.57 | 0.09 | 0.24 | 0.20 |
e Estimated |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1969 - 2002, BY WATER YEAR (WY) | ||||||||||||
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MEAN | 46.87 | 102.3 | 174.0 | 160.7 | 223.3 | 292.2 | 324.8 | 233.7 | 141.5 | 54.78 | 31.87 | 42.90 |
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 2001 CALENDAR YEAR | FOR 2002 WATER YEAR | WATER YEARS 1969 - 2002 | |||
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ANNUAL TOTAL | 42859.5 | 108552.8 | ||||
ANNUAL MEAN | 117.4 | 297.4 | 151.7 | |||
HIGHEST ANNUAL MEAN | 297 | 1985,2002 | ||||
LOWEST ANNUAL MEAN | 32.4 | 1980 | ||||
HIGHEST DAILY MEAN | 3420 | Dec 17 | 7700 | May 13 | 7700 | May 13 2002 |
LOWEST DAILY MEAN | 1.6 | Oct 1 | 1.6 | Oct 1 | 0.00 | A |
ANNUAL SEVEN-DAY MINIMUM | 2.4 | Sep 28 | 5.0 | Sep 6 | 0.00 | Aug 29 1987 |
MAXIMUM PEAK FLOW | 8310 | May 13 | 8310 B | May 13 2002 | ||
MAXIMUM PEAK STAGE | 23.42 | May 13 | 24.74 C | Apr 12 1979 | ||
INSTANTANEOUS LOW FLOW | 1.4 | Oct 1 | ||||
ANNUAL RUNOFF (CFSM) | 0.55 | 1.40 | 0.72 | |||
ANNUAL RUNOFF (INCHES) | 7.52 | 19.05 | 9.72 | |||
10 PERCENT EXCEEDS | 242 | 617 | 276 | |||
50 PERCENT EXCEEDS | 38 | 58 | 27 | |||
90 PERCENT EXCEEDS | 6.8 | 8.0 | 2.1 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |