LOCATION.-- Lat 38°55'21", long 89°14'12" (NAD of 1927), in NW1/4SE1/4 sec.31, T.6 N., R.1 W., Fayette County, Hydrologic Unit 07140202, on left bank at downstream side of bridge on State Highway 140, 300 ft downstream from railroad bridge, 1 mi east of Mulberry Grove, and at mile 14.1. | |
DRAINAGE AREA.-- 152 mi2. | |
PERIOD OF RECORD.-- | |
SURFACE-WATER DISCHARGE AND STAGE | |
DISCHARGE: October 1970 to current year. | |
STAGE: Water years 1994 to current year. | |
SURFACE-WATER QUALITY | |
CHEMICAL: Water years 1978-91. | |
REVISED RECORDS.-- WDR IL-91-1: 1983(P). | |
GAGE.-- Water-stage recorder, U.S. Army Corps of Engineers satellite telemeter, and crest-stage gage. Datum of gage is 467.00 ft above NGVD of 1929. Prior to Oct. 1, 1975, at same site at datum 0.30 ft lower. | |
EXTREMES FOR PERIOD OF RECORD.-- | |
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 17,900 ft3/s, Dec. 25, 1982, gage height, 19.99 ft; maximum gage height, 21.32 ft, May 13, 2002; no flow for many days in 1987-88, 1991. | |
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 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DAY | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP |
| 1 | 3.4 | 9.1 | 6.3 | 88 | e11 | e18 | 25 | 27 | 30 | 15 | 5.7 | 346 |
| 2 | 3.1 | 7.2 | e5.8 | 47 | e14 | e20 | 23 | 32 | 29 | 39 | 6.6 | 760 |
| 3 | 3.2 | 5.7 | e5.8 | 32 | e18 | e23 | 20 | 23 | 37 | 14 | 24 | 88 |
| 4 | 4.3 | 6.2 | e5.8 | 20 | 22 | e29 | 20 | 56 | 38 | 12 | 16 | 35 |
| 5 | 5.2 | 8.1 | e5.8 | 25 | 21 | 39 | 21 | 962 | 31 | 11 | 8.8 | 18 |
| 6 | 5.3 | 12 | e5.4 | 23 | 16 | 35 | 18 | 148 | 29 | 9.8 | 5.8 | 12 |
| 7 | 4.6 | 10 | e6.0 | 22 | e11 | 29 | 21 | 106 | 30 | 9.2 | 5.5 | 8.8 |
| 8 | 4.5 | 8.3 | e6.4 | e18 | e9.0 | 26 | 19 | 677 | 28 | 8.5 | 5.0 | 7.2 |
| 9 | 4.3 | 7.3 | e6.8 | e14 | e8.0 | 23 | 17 | 2890 | 25 | 8.8 | 4.0 | 6.6 |
| 10 | 4.3 | 7.3 | 7.1 | e12 | e7.6 | 20 | 15 | 1370 | 42 | 68 | 3.5 | 5.9 |
| 11 | 4.4 | 7.7 | 7.8 | e11 | e7.8 | 17 | 14 | 2180 | 204 | 52 | 3.2 | 5.4 |
| 12 | 4.6 | 9.0 | 7.6 | e10 | e8.0 | 20 | 14 | 222 | 746 | 18 | 3.0 | 5.2 |
| 13 | 4.5 | 8.3 | 8.1 | e9.0 | e8.2 | 115 | 12 | 121 | 169 | 10 | 2.7 | 5.0 |
| 14 | 4.1 | 7.4 | 8.4 | e8.4 | e14 | 92 | 12 | 98 | 248 | 8.2 | 2.7 | 4.8 |
| 15 | 4.2 | 7.8 | 8.3 | e8.0 | 144 | 51 | 11 | 89 | 81 | 7.4 | 3.0 | 4.6 |
| 16 | 4.3 | 8.3 | 7.9 | e7.4 | 218 | e40 | 11 | 81 | 51 | 7.1 | 3.3 | 4.0 |
| 17 | 4.3 | 8.1 | 7.9 | e7.0 | 66 | e35 | 29 | 70 | 39 | 6.8 | 2.8 | 3.8 |
| 18 | 4.2 | 7.8 | 9.5 | e6.6 | 63 | 33 | e30 | 66 | 33 | 37 | 2.4 | 3.7 |
| 19 | 6.5 | 7.3 | 39 | e6.2 | 126 | 41 | e22 | 62 | 29 | 34 | 2.1 | 3.6 |
| 20 | 6.8 | 7.3 | 40 | e6.0 | 596 | 128 | e60 | 92 | 26 | 14 | 2.2 | 3.3 |
| 21 | 6.2 | 7.9 | 20 | e6.0 | 178 | 100 | e70 | 96 | 23 | 8.8 | 2.2 | 2.9 |
| 22 | 5.5 | 8.3 | 13 | e5.8 | 98 | 74 | e43 | 58 | 21 | 7.2 | 2.0 | 3.8 |
| 23 | 5.1 | 7.1 | 9.8 | e5.8 | 90 | 46 | 30 | 49 | 19 | 6.4 | 1.7 | 4.2 |
| 24 | 4.9 | 7.1 | e8.0 | e5.6 | 53 | 37 | e50 | 46 | 17 | 6.2 | 1.5 | 3.6 |
| 25 | 8.6 | 7.0 | e7.0 | e5.5 | 33 | 35 | e180 | 61 | 16 | 5.6 | 1.4 | 3.4 |
| 26 | 12 | 6.8 | e6.6 | e5.4 | e27 | 33 | e100 | 54 | 88 | 5.4 | 1.4 | 4.9 |
| 27 | 11 | 6.8 | e6.4 | e5.4 | e22 | 28 | e70 | 44 | 57 | 5.3 | 1.6 | 62 |
| 28 | 7.4 | 6.8 | e6.6 | e5.4 | e20 | 30 | e42 | 40 | 25 | 7.2 | 1.7 | 26 |
| 29 | 14 | 6.8 | e7.5 | e6.0 | --- | 45 | 30 | 37 | 17 | 16 | 1.6 | 9.3 |
| 30 | 18 | 7.0 | e13 | e7.3 | --- | 38 | 26 | 34 | 14 | 8.9 | 1.7 | 5.6 |
| 31 | 13 | --- | 60 | e9.0 | --- | 28 | --- | 32 | --- | 6.5 | 5.7 | --- |
| TOTAL | 195.8 | 231.8 | 363.6 | 447.8 | 1909.6 | 1328 | 1055 | 9923 | 2242 | 473.3 | 134.8 | 1456.6 |
| MEAN | 6.32 | 7.73 | 11.7 | 14.4 | 68.2 | 42.8 | 35.2 | 320 | 74.7 | 15.3 | 4.35 | 48.6 |
| MAX | 18 | 12 | 60 | 88 | 596 | 128 | 180 | 2890 | 746 | 68 | 24 | 760 |
| MIN | 3.1 | 5.7 | 5.4 | 5.4 | 7.6 | 17 | 11 | 23 | 14 | 5.3 | 1.4 | 2.9 |
| CFSM | 0.04 | 0.05 | 0.08 | 0.10 | 0.45 | 0.28 | 0.23 | 2.11 | 0.49 | 0.10 | 0.03 | 0.32 |
| IN. | 0.05 | 0.06 | 0.09 | 0.11 | 0.47 | 0.33 | 0.26 | 2.43 | 0.55 | 0.12 | 0.03 | 0.36 |
| e Estimated |
| STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1971 - 2003, BY WATER YEAR (WY) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MEAN | 29.5 | 108 | 191 | 144 | 230 | 261 | 223 | 214 | 121 | 63.5 | 29.2 | 39.9 |
| MAX | 276 | 666 | 1443 | 617 | 775 | 1024 | 825 | 1184 | 429 | 305 | 162 | 444 |
| (WY) | 1987 | 1986 | 1983 | 1974 | 1985 | 1978 | 1994 | 2002 | 1973 | 1982 | 2000 | 1993 |
| MIN | 0.42 | 1.93 | 3.44 | 1.94 | 16.4 | 20.4 | 20.9 | 10.9 | 2.63 | 2.46 | 0.43 | 0.056 |
| (WY) | 1989 | 1972 | 1990 | 1977 | 1978 | 1981 | 1986 | 1988 | 1988 | 1988 | 1988 | 1988 |
| SUMMARY STATISTICS | FOR 2002 CALENDAR YEAR | FOR 2003 WATER YEAR | WATER YEARS 1971 - 2003 | |||
|---|---|---|---|---|---|---|
| ANNUAL TOTAL | 72330.73 | 19761.3 | ||||
| ANNUAL MEAN | 198 | 54.1 | 137 | |||
| HIGHEST ANNUAL MEAN | 254 | 1984 | ||||
| LOWEST ANNUAL MEAN | 28.9 | 1992 | ||||
| HIGHEST DAILY MEAN | 9890 | May 13 | 2890 | May 9 | 13800 | Dec 25 1982 |
| LOWEST DAILY MEAN | 0.68 | Sep 7 | 1.4 | Aug 25, 26 | 0.00 | A |
| ANNUAL SEVEN-DAY MINIMUM | 0.90 | Sep 5 | 1.6 | Aug 23 | 0.00 | Aug 12 1988 |
| MAXIMUM PEAK FLOW | 3010 | May 9 | 17900 B | Dec 25 1982 | ||
| MAXIMUM PEAK STAGE | 15.51 | May 9 | 21.32 C | May 13 2002 | ||
| INSTANTANEOUS LOW FLOW | 1.3 | Aug 25 | ||||
| ANNUAL RUNOFF (CFSM) | 1.30 | 0.36 | 0.90 | |||
| ANNUAL RUNOFF (INCHES) | 17.70 | 4.84 | 12.27 | |||
| 10 PERCENT EXCEEDS | 365 | 81 | 200 | |||
| 50 PERCENT EXCEEDS | 19 | 11 | 22 | |||
| 90 PERCENT EXCEEDS | 3.4 | 4.2 | 2.5 | |||