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 2003 TO SEPTEMBER 2004 DAILY MEAN VALUES |
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DAY | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP |
1 | e3.0 | e22 | 47 | 91 | e36 | 89 | 174 | 256 | 331 | 14 | 61 | 10 |
2 | e2.5 | e15 | 39 | 80 | e50 | 81 | 137 | 181 | 168 | 17 | 32 | 8.7 |
3 | e2.4 | e10 | 36 | 74 | e89 | 74 | 114 | 112 | 121 | 54 | 22 | 7.7 |
4 | e2.3 | e7.0 | 37 | 1480 | e94 | 874 | 91 | 74 | 94 | 42 | 20 | 6.9 |
5 | e2.2 | e9.0 | 39 | 546 | e77 | 2960 | 77 | 60 | 76 | 31 | 17 | 6.4 |
6 | e2.1 | e12 | 37 | 308 | e66 | 1070 | 69 | 50 | 65 | 397 | 12 | 6.2 |
7 | e2.0 | e14 | 34 | 252 | e60 | 301 | 64 | 39 | 56 | 177 | 9.9 | 5.6 |
8 | e2.8 | e10 | 33 | 167 | e53 | 188 | 59 | 32 | 49 | 67 | 8.7 | 5.2 |
9 | e4.0 | e7.0 | 33 | 138 | e60 | 148 | 52 | 28 | 50 | 41 | 7.9 | 4.9 |
10 | 6.0 | e6.4 | 38 | 115 | 78 | 121 | 49 | 25 | 62 | 29 | 7.8 | 4.6 |
11 | e12 | e5.8 | 40 | 100 | 127 | 105 | 51 | 59 | 75 | 23 | 7.3 | 4.6 |
12 | e4.5 | e5.6 | 33 | 94 | 212 | 89 | 47 | 52 | 66 | 29 | 6.5 | 4.6 |
13 | e4.2 | e5.2 | 30 | 84 | 145 | 78 | 42 | 964 | 54 | 25 | 5.9 | 4.5 |
14 | e11 | e5.0 | 30 | 77 | e120 | 77 | 37 | 5680 | 97 | 20 | 5.7 | 4.3 |
15 | e8.0 | e7.0 | 30 | 72 | e110 | 71 | 35 | 5300 | 53 | 14 | 5.5 | 4.7 |
16 | e12 | e5.4 | 33 | 63 | e100 | 70 | 33 | 757 | 57 | 11 | 5.4 | 8.6 |
17 | e20 | e6.4 | 31 | 160 | e90 | 69 | 32 | 266 | 144 | 11 | 5.4 | 5.4 |
18 | e10 | 3580 | 30 | 639 | e130 | 65 | 31 | 288 | 115 | 10 | 5.3 | 5.8 |
19 | e8.0 | 2730 | 30 | 250 | 265 | 58 | 29 | 1140 | 98 | 9.3 | 5.4 | 4.9 |
20 | e7.0 | 418 | 26 | 165 | 333 | 57 | 29 | 689 | 54 | 9.7 | 6.0 | 4.5 |
21 | e6.5 | 195 | 26 | e115 | 250 | 53 | 30 | 236 | 39 | 9.8 | 6.6 | 4.3 |
22 | e6.0 | 133 | 26 | e90 | 163 | 47 | 27 | 153 | 35 | 11 | 8.7 | 4.0 |
23 | e5.5 | 129 | 318 | e74 | 160 | 45 | 28 | 117 | 30 | 13 | 7.0 | 3.7 |
24 | e5.0 | 241 | 348 | e64 | 514 | 45 | 37 | 97 | 25 | 13 | 33 | 3.4 |
25 | e7.0 | 160 | 142 | e57 | 255 | 49 | 69 | 418 | 21 | 24 | 34 | 3.3 |
26 | e6.4 | 104 | 95 | e54 | 161 | 480 | 57 | 1680 | 19 | 27 | 213 | 3.1 |
27 | e5.6 | 80 | 75 | e64 | 122 | 1380 | 39 | 3700 | 17 | 27 | 96 | 3.1 |
28 | e7.0 | 67 | 71 | e52 | 102 | 568 | 31 | 5720 | 16 | 21 | 40 | 3.2 |
29 | e6.4 | 56 | 227 | e46 | 93 | 1120 | 29 | 2490 | 15 | 22 | 28 | 3.2 |
30 | e6.0 | 51 | 233 | e42 | --- | 458 | 45 | 416 | 14 | 370 | 17 | 3.3 |
31 | e5.6 | --- | 126 | e38 | --- | 258 | --- | 778 | --- | 164 | 13 | --- |
TOTAL | 193.0 | 8096.8 | 2373 | 5651 | 4115 | 11148 | 1644 | 31857 | 2116 | 1732.8 | 753.0 | 152.7 |
MEAN | 6.23 | 270 | 76.5 | 182 | 142 | 360 | 54.8 | 1028 | 70.5 | 55.9 | 24.3 | 5.09 |
MAX | 20 | 3580 | 348 | 1480 | 514 | 2960 | 174 | 5720 | 331 | 397 | 213 | 10 |
MIN | 2.0 | 5.0 | 26 | 38 | 36 | 45 | 27 | 25 | 14 | 9.3 | 5.3 | 3.1 |
CFSM | 0.03 | 1.27 | 0.36 | 0.86 | 0.67 | 1.70 | 0.26 | 4.85 | 0.33 | 0.26 | 0.11 | 0.02 |
IN. | 0.03 | 1.42 | 0.42 | 0.99 | 0.72 | 1.96 | 0.29 | 5.59 | 0.37 | 0.30 | 0.13 | 0.03 |
e Estimated |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1969 - 2004, BY WATER YEAR (WY) | ||||||||||||
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MEAN | 44.8 | 104 | 167 | 157 | 217 | 288 | 310 | 259 | 140 | 54.8 | 31.1 | 45.3 |
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 2003 CALENDAR YEAR | FOR 2004 WATER YEAR | WATER YEARS 1969 - 2004 | |||
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ANNUAL TOTAL | 40522.0 | 69832.3 | ||||
ANNUAL MEAN | 111 | 191 | 151 | |||
HIGHEST ANNUAL MEAN | 297 | 1985 | ||||
LOWEST ANNUAL MEAN | 32.4 | 1980 | ||||
HIGHEST DAILY MEAN | 3580 | Nov 18 | 5720 | May 28 | 7700 | May 13 2002 |
LOWEST DAILY MEAN | 2.0 A | Oct 7 | 2.0 A | Oct 7 | 0.00 | B |
ANNUAL SEVEN-DAY MINIMUM | 2.3 | Oct 2 | 2.3 | Oct 2 | 0.00 | Aug 29 1987 |
MAXIMUM PEAK FLOW | 6320 | May 15 | 8310 C | May 13 2002 | ||
MAXIMUM PEAK STAGE | 20.03 | May 15 | 24.74 D | Apr 12 1979 | ||
ANNUAL RUNOFF (CFSM) | 0.524 | 0.900 | 0.712 | |||
ANNUAL RUNOFF (INCHES) | 7.11 | 12.25 | 9.68 | |||
10 PERCENT EXCEEDS | 207 | 292 | 274 | |||
50 PERCENT EXCEEDS | 30 | 42 | 27 | |||
90 PERCENT EXCEEDS | 5.5 | 5.4 | 2.2 |
A - Estimated, but may have been less during period of estimated discharges in October. |
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Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |