LOCATION.-- Lat 39°42'11", long 88°23'11" (NAD of 1927), in SE1/4NW1/4 sec.35, T.15 N., R.7 E., Douglas County, Hydrologic Unit 07140201, on left bank at downstream side of bridge on State Highway 133 at Chesterville, and at mile 254.0. |
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DRAINAGE AREA.-- 358 mi2. |
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PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE |
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DISCHARGE: May 1995 to current year. |
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STAGE: May 1995 to current year. Gage-height record for Jan. 1974 to July 1983, and Apr. 4, 1995 to May 11, 1995 available in files of U.S. Army Corps of Engineers. |
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GAGE.-- Water-stage recorder, U.S. Army Corps of Engineers satellite telemeter, and crest-stage gage. Datum of gage is 600.00 ft above NGVD of 1929 (levels by U.S. Army Corps of Engineers). |
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EXTREMES FOR PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 8,530 ft3/s, May 13, 2002, gage height, 45.52 ft; minimum discharge, 4.1 ft3/s, Sept. 19, 1999. |
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EXTREMES OUTSIDE PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE: Flood of Mar. 5, 1979 reached a stage of 44.84 ft, discharge undetermined, from information by the U.S. Army Corps of Engineers. |
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REMARKS FOR CURRENT YEAR.-- Records fair 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 | 8.8 | 22 | 18 | 31 | e10 | e48 | 50 | 44 | 125 | 105 | 30 | 264 |
2 | 9.0 | 19 | 16 | 23 | e10 | e46 | 54 | 50 | 122 | 97 | 28 | 561 |
3 | 11 | 18 | 20 | 20 | e11 | e44 | 55 | 46 | 113 | 82 | 27 | 601 |
4 | 14 | 17 | 19 | 17 | e12 | e44 | 54 | 43 | 110 | 74 | 48 | 369 |
5 | 17 | 18 | 18 | 19 | e14 | e46 | 73 | 130 | 101 | 64 | 32 | 167 |
6 | 21 | 18 | 18 | 20 | e18 | e50 | 65 | 308 | 89 | 57 | 27 | 96 |
7 | 14 | 23 | 18 | 18 | e23 | e62 | 57 | 368 | 89 | 56 | 26 | 71 |
8 | 14 | 20 | 17 | 18 | e21 | e58 | 74 | 307 | 92 | 50 | 24 | 57 |
9 | 13 | 19 | 17 | 19 | e22 | e64 | 69 | 268 | 83 | 60 | 24 | 49 |
10 | 11 | 21 | 18 | 20 | e23 | e62 | 62 | 825 | 78 | 731 | 23 | 41 |
11 | 11 | 20 | 18 | 17 | e26 | e58 | 60 | 1670 | 77 | 1890 | 21 | 36 |
12 | 12 | 18 | 18 | 16 | e24 | e64 | 59 | 1520 | 145 | 1880 | 21 | 34 |
13 | 12 | 17 | 18 | e15 | e23 | 80 | 55 | 1100 | 552 | 1260 | 20 | 31 |
14 | 15 | 16 | 18 | e14 | e25 | 233 | 51 | 747 | 832 | 720 | 19 | 30 |
15 | 15 | 16 | 17 | e13 | e29 | 221 | 51 | 551 | 842 | 424 | 20 | 30 |
16 | 9.3 | 18 | 15 | e12 | e31 | 173 | 48 | 618 | 641 | 233 | 20 | 29 |
17 | 11 | 19 | 16 | e12 | e29 | 141 | 49 | 591 | 429 | 141 | 18 | 27 |
18 | 12 | 18 | 17 | e11 | e28 | 120 | 55 | 456 | 273 | 110 | 17 | 26 |
19 | 16 | 18 | 27 | e11 | e30 | 109 | 50 | 329 | 219 | 143 | 16 | 26 |
20 | 34 | 19 | 30 | e10 | e37 | 111 | 46 | 269 | 197 | 102 | 16 | 25 |
21 | 23 | 19 | 21 | e9.8 | e60 | 108 | 51 | 294 | 157 | 107 | 14 | 25 |
22 | 18 | 20 | 17 | e9.8 | e86 | 97 | 49 | 260 | 134 | 195 | 15 | 25 |
23 | 17 | 20 | 15 | e9.6 | e140 | 86 | 46 | 216 | 124 | 155 | 15 | 26 |
24 | 15 | 18 | 14 | e9.6 | e110 | 78 | 42 | 185 | 108 | 96 | 14 | 27 |
25 | 16 | 18 | 14 | e9.4 | e90 | 77 | 46 | 165 | 101 | 70 | 14 | 24 |
26 | 22 | 19 | 13 | e9.4 | e72 | 75 | 61 | 149 | 94 | 55 | 13 | 24 |
27 | 25 | 19 | 17 | e9.4 | e62 | 69 | 54 | 133 | 89 | 47 | 14 | 29 |
28 | 20 | 19 | 14 | e9.6 | e46 | 66 | 48 | 121 | 83 | 41 | 15 | 65 |
29 | 22 | 19 | 13 | e9.6 | --- | 69 | 48 | 120 | 76 | 40 | 15 | 47 |
30 | 26 | 18 | 14 | e9.6 | --- | 67 | 42 | 114 | 76 | 39 | 23 | 35 |
31 | 29 | --- | 23 | e9.8 | --- | 55 | --- | 111 | --- | 34 | 36 | --- |
TOTAL | 513.1 | 563 | 548 | 441.6 | 1112 | 2681 | 1624 | 12108 | 6251 | 9158 | 665 | 2897 |
MEAN | 16.6 | 18.8 | 17.7 | 14.2 | 39.7 | 86.5 | 54.1 | 391 | 208 | 295 | 21.5 | 96.6 |
MAX | 34 | 23 | 30 | 31 | 140 | 233 | 74 | 1670 | 842 | 1890 | 48 | 601 |
MIN | 8.8 | 16 | 13 | 9.4 | 10 | 44 | 42 | 43 | 76 | 34 | 13 | 24 |
CFSM | 0.05 | 0.05 | 0.05 | 0.04 | 0.11 | 0.24 | 0.15 | 1.09 | 0.58 | 0.83 | 0.06 | 0.27 |
IN. | 0.05 | 0.06 | 0.06 | 0.05 | 0.12 | 0.28 | 0.17 | 1.26 | 0.65 | 0.95 | 0.07 | 0.30 |
e Estimated |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1995 - 2003, BY WATER YEAR (WY) | ||||||||||||
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MEAN | 90.6 | 83.7 | 148 | 245 | 542 | 491 | 475 | 877 | 621 | 159 | 51.8 | 54.5 |
MAX | 355 | 377 | 470 | 529 | 1219 | 1233 | 1123 | 2146 | 1378 | 475 | 100 | 200 |
(WY) | 2001 | 2001 | 2002 | 1998 | 2001 | 1998 | 2002 | 1996 | 1998 | 2000 | 2000 | 2000 |
MIN | 11.4 | 18.8 | 17.7 | 14.2 | 39.7 | 86.5 | 54.1 | 114 | 208 | 38.0 | 15.1 | 8.98 |
(WY) | 1997 | 2003 | 2003 | 2003 | 2003 | 2003 | 2003 | 2001 | 2003 | 2001 | 1996 | 1998 |
SUMMARY STATISTICS | FOR 2002 CALENDAR YEAR | FOR 2003 WATER YEAR | WATER YEARS 1995 - 2003 | |||
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ANNUAL TOTAL | 163970.8 | 38561.7 | ||||
ANNUAL MEAN | 449 | 106 | 322 | |||
HIGHEST ANNUAL MEAN | 551 | 1998 | ||||
LOWEST ANNUAL MEAN | 106 | 2003 | ||||
HIGHEST DAILY MEAN | 7990 | May 13 | 1890 | Jul 11 | 7990 | May 13 2002 |
LOWEST DAILY MEAN | 8.8 | Oct 1 | 8.8 | Oct 1 | 4.7 | Sep 10 1998 |
ANNUAL SEVEN-DAY MINIMUM | 9.5 | Sep 26 | 9.5 A | Jan 23 | 6.0 | Sep 15 1999 |
MAXIMUM PEAK FLOW | 2080 | Jul 11 | 8530 | May 13 2002 | ||
MAXIMUM PEAK STAGE | 38.98 | Jul 11 | 45.52 | May 13 2002 | ||
INSTANTANEOUS LOW FLOW | 7.6 | Oct 2 | 4.1 | Sep 19 1999 | ||
ANNUAL RUNOFF (CFSM) | 1.25 | 0.30 | 0.90 | |||
ANNUAL RUNOFF (INCHES) | 17.04 | 4.01 | 12.22 | |||
10 PERCENT EXCEEDS | 1340 | 220 | 892 | |||
50 PERCENT EXCEEDS | 80 | 31 | 94 | |||
90 PERCENT EXCEEDS | 13 | 14 | 14 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |