LOCATION.-- Lat 38°15'14", long 89°02'23" (NAD of 1927), in NE1/4NE1/4 sec.24, T.3 S., R.1 E., Jefferson County, Hydrologic Unit 07140106, at bridge on County Highway 9, 1.2 mi downstream from Knob Creek, 2.4 mi downstream from Novak Creek, 3.0 mi north of Waltonville, and at mile 6.7. | |
DRAINAGE AREA.-- 88.0 mi2. | |
PERIOD OF RECORD.-- | |
SURFACE-WATER DISCHARGE AND STAGE | |
DISCHARGE: September 1979 to current year. | |
STAGE: Water years 1997-2002. Gage-height record for Feb. 10, 1965 to Sept. 30, 1979 available in files of U.S. Army Corps of Engineers, October 1980 to September 1994 (8 AM gage heights). | |
SURFACE-WATER QUALITY | |
CHEMICAL: Water years 1978-91. | |
REVISED RECORDS.-- WDR IL-94-1: 1982-90. | |
GAGE.-- Water-stage recorder, U.S. Army Corps of Engineers satellite telemeter and rain gage, and crest-stage gage. Datum of gage is 412.00 ft above NGVD of 1929 (levels by U.S. Army Corps of Engineers). | |
EXTREMES FOR PERIOD OF RECORD.-- | |
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 21,200 ft3/s, Nov. 14, 1993, gage height, 17.73 ft; no flow at times in most years. | |
REMARKS FOR CURRENT YEAR.-- Records fair except those for estimated daily discharges, which are poor. | |
| DISCHARGE, in CFS, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DAY | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP |
| 1 | 0.02 | 5.1 | 79 | e3.6 | 1950 | e23 | 52 | 26 | 12 | 0.37 | 0.09 | 0.00 |
| 2 | 0.00 | 4.9 | 19 | e3.3 | 414 | 58 | 43 | 23 | 10 | 0.35 | 0.08 | 0.00 |
| 3 | 0.00 | 4.5 | 7.8 | e3.1 | 84 | 201 | 44 | 19 | 8.5 | 0.30 | 0.06 | 0.00 |
| 4 | 0.00 | 3.4 | 4.0 | e3.0 | 51 | 49 | 35 | 16 | 6.9 | 0.25 | 0.01 | 0.00 |
| 5 | 0.05 | 2.7 | 2.2 | e3.3 | 32 | 31 | 27 | 15 | 5.5 | 0.22 | 0.00 | 0.00 |
| 6 | 0.09 | 2.5 | 85 | e3.7 | 27 | 29 | 24 | 128 | 4.5 | 0.19 | 0.00 | 0.00 |
| 7 | 0.08 | 3.0 | 69 | e4.2 | 25 | 27 | 22 | 373 | 4.0 | 0.15 | 0.00 | 0.00 |
| 8 | 0.07 | 3.1 | 23 | e5.0 | 21 | 23 | 264 | 1550 | 3.4 | 0.10 | 0.00 | 0.00 |
| 9 | 0.06 | 3.3 | 9.2 | e6.0 | 18 | 1820 | 168 | 1340 | 2.9 | 0.10 | 0.00 | 0.00 |
| 10 | 0.09 | 3.3 | 3.8 | e7.5 | 16 | 1490 | 60 | 328 | 2.6 | 0.08 | 0.00 | 0.00 |
| 11 | 1.1 | 2.9 | 2.0 | 9.7 | 15 | 150 | 39 | 62 | 3.2 | 0.06 | 0.00 | 0.00 |
| 12 | 6.3 | 2.4 | 54 | 8.6 | 14 | 194 | 408 | 130 | 5.7 | 0.38 | 0.00 | 0.00 |
| 13 | 481 | 2.2 | 274 | 8.3 | 13 | 105 | 324 | 4390 | 9.3 | 0.91 | 0.01 | 0.00 |
| 14 | 614 | 1.8 | 495 | 8.3 | 12 | 64 | 1280 | 2420 | 8.3 | 0.18 | 0.02 | 0.00 |
| 15 | 51 | 1.5 | 227 | 7.9 | 11 | 66 | 201 | 176 | 7.1 | 0.17 | 0.00 | 0.00 |
| 16 | 106 | 1.2 | 613 | 7.3 | 11 | 343 | 74 | 50 | 5.9 | 0.16 | 0.00 | 0.00 |
| 17 | 44 | 1.0 | 1840 | 6.8 | 10 | 128 | 45 | 659 | 3.8 | 0.15 | 0.00 | 0.00 |
| 18 | 20 | 0.82 | 903 | 6.2 | 9.8 | 105 | 33 | 151 | 2.5 | 0.15 | 0.00 | 0.00 |
| 19 | 9.1 | 0.66 | 132 | 6.7 | 40 | 612 | 38 | 58 | 1.8 | 0.18 | 0.03 | 0.00 |
| 20 | 8.0 | 0.56 | 57 | 7.2 | 559 | 1480 | 43 | 33 | 1.3 | 0.12 | 0.04 | 0.00 |
| 21 | 6.3 | 0.63 | 36 | 7.6 | 152 | 355 | 85 | 23 | 1.1 | 0.11 | 0.02 | 0.00 |
| 22 | 4.8 | 0.64 | 29 | 8.1 | 55 | 82 | 142 | 18 | 0.96 | 0.44 | 0.00 | 0.00 |
| 23 | 3.9 | 0.54 | e21 | 9.0 | 34 | 56 | 47 | 16 | 0.80 | 0.52 | 0.00 | 0.00 |
| 24 | e100 | 0.59 | e16 | 44 | 26 | 47 | 30 | 14 | 0.68 | 0.45 | 0.00 | 0.00 |
| 25 | e180 | 0.81 | e12 | 37 | 22 | 617 | 54 | 13 | 0.60 | 0.35 | 0.00 | 0.00 |
| 26 | e45 | 1.2 | e9.0 | 19 | 37 | 521 | 30 | 12 | 0.51 | 0.30 | 0.00 | 0.00 |
| 27 | 16 | 1.4 | e7.5 | 15 | e27 | 164 | 127 | 12 | 0.52 | 0.24 | 0.00 | 0.00 |
| 28 | 10 | 1.6 | e6.4 | 13 | e20 | 84 | 216 | 98 | 3.1 | 0.19 | 0.00 | 0.00 |
| 29 | 7.6 | 24 | e5.5 | 12 | --- | 268 | 65 | 67 | 0.52 | 0.16 | 0.00 | 0.00 |
| 30 | 6.2 | 386 | e4.7 | 18 | --- | 191 | 34 | 22 | 0.40 | 0.13 | 0.00 | 0.00 |
| 31 | 5.6 | --- | e4.2 | 728 | --- | 79 | --- | 14 | --- | 0.10 | 0.00 | --- |
| TOTAL | 1726.36 | 468.25 | 5050.3 | 1030.4 | 3705.8 | 9462 | 4054 | 12256 | 118.39 | 7.56 | 0.36 | 0.00 |
| MEAN | 55.69 | 15.61 | 162.9 | 33.24 | 132.3 | 305.2 | 135.1 | 395.4 | 3.946 | 0.244 | 0.012 | 0.000 |
| MAX | 614 | 386 | 1840 | 728 | 1950 | 1820 | 1280 | 4390 | 12 | 0.91 | 0.09 | 0.00 |
| MIN | 0.00 | 0.54 | 2.0 | 3.0 | 9.8 | 23 | 22 | 12 | 0.40 | 0.06 | 0.00 | 0.00 |
| CFSM | 0.63 | 0.18 | 1.85 | 0.38 | 1.50 | 3.47 | 1.54 | 4.49 | 0.04 | 0.00 | 0.00 | 0.00 |
| IN. | 0.73 | 0.20 | 2.13 | 0.44 | 1.57 | 4.00 | 1.71 | 5.18 | 0.05 | 0.00 | 0.00 | 0.00 |
| e Estimated |
| STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1980 - 2002, BY WATER YEAR (WY) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MEAN | 25.18 | 102.6 | 104.0 | 119.8 | 154.9 | 150.7 | 167.2 | 144.3 | 53.33 | 26.55 | 5.269 | 16.63 |
| MAX | 140 | 670 | 748 | 417 | 466 | 468 | 721 | 942 | 286 | 123 | 47.7 | 161 |
| (WY) | 1985 | 1986 | 1983 | 1999 | 1985 | 1984 | 1996 | 1995 | 2000 | 1982 | 1981 | 1993 |
| MIN | 0.000 | 0.000 | 0.000 | 0.028 | 1.78 | 4.05 | 12.4 | 1.35 | 0.35 | 0.15 | 0.000 | 0.000 |
| (WY) | 1996 | 1996 | 2000 | 1981 | 1996 | 1981 | 1981 | 1988 | 1992 | 1984 | 1991 | 1983 |
| SUMMARY STATISTICS | FOR 2001 CALENDAR YEAR | FOR 2002 WATER YEAR | WATER YEARS 1980 - 2002 | |||
|---|---|---|---|---|---|---|
| ANNUAL TOTAL | 20490.32 | 37879.42 | ||||
| ANNUAL MEAN | 56.14 | 103.8 | 88.76 | |||
| HIGHEST ANNUAL MEAN | 167 | 1983 | ||||
| LOWEST ANNUAL MEAN | 23.1 | 1987 | ||||
| HIGHEST DAILY MEAN | 1840 | Dec 17 | 4390 | May 13 | 11200 | Apr 29 1996 |
| LOWEST DAILY MEAN | 0.00 | Oct 2-4 | 0.00 | Many days | 0.00 | A |
| ANNUAL SEVEN-DAY MINIMUM | 0.02 | Sep 29 | 0.00 | Aug 5 | 0.00 | Jul 24 1980 |
| MAXIMUM PEAK FLOW | 6150 | May 13 | 21200 | Nov 14 1993 | ||
| MAXIMUM PEAK STAGE | 13.86 | May 13 | 17.73 | Nov 14 1993 | ||
| ANNUAL RUNOFF (CFSM) | 0.64 | 1.18 | 1.01 | |||
| ANNUAL RUNOFF (INCHES) | 8.66 | 16.01 | 13.70 | |||
| 10 PERCENT EXCEEDS | 82 | 197 | 133 | |||
| 50 PERCENT EXCEEDS | 6.3 | 7.2 | 4.5 | |||
| 90 PERCENT EXCEEDS | 0.19 | 0.00 | 0.00 | |||