LOCATION.-- Lat 39°35'00", long 88°24'48" (NAD of 1927), in NW1/4SW1/4 sec.10, T.13 N., R.7 E., Coles County, Hydrologic Unit 07140201, on right upstream side of bridge in Cooks Mills, 3.8 mi downstream from Flat Branch, and at mile 238.1. |
|
DRAINAGE AREA.-- 473 mi2. |
|
PERIOD OF RECORD.-- |
|
SURFACE-WATER DISCHARGE AND STAGE |
|
DISCHARGE: August 1970 to current year. |
|
STAGE: Water years 1994 to current year. |
|
SURFACE-WATER QUALITY |
|
CHEMICAL: Water years 1977-91. Additional chemical data for water years 1961-68, 1971-72 are published in Water-Resources Investigations 78-24 and 79-25 as site O 02. |
|
SEDIMENT: January 1979 to September 1997. |
|
MISCELLANEOUS: Sediment concentration and particle size, water years 1993-97. |
|
GAGE.-- Water-stage recorder, U.S. Army Corps of Engineers satellite telemeter, and crest-stage gage. Datum of gage is 617.40 ft above NGVD of 1929. Prior to July 30, 1981, at site 200 ft downstream at same datum. |
|
REMARKS.-- Occasional golf-course irrigation water withdrawals approximately 15.5 miles upstream from the gage. |
|
EXTREMES FOR PERIOD OF RECORD.-- |
|
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 11,000 ft3/s, May 13, 2002, gage height, 17.85 ft; no flow Sept. 11, 1988. |
|
SUSPENDED-SEDIMENT CONCENTRATIONS: Maximum daily, 1,710 mg/L, May 1, 1983; minimum daily, 0 mg/L, Sept. 10, 11, 1988. |
|
SUSPENDED-SEDIMENT LOADS: Maximum daily, 26,100 tons, Apr. 13, 1979; minimum daily, 0 ton, Sept. 10, 11, 1988. |
|
REMARKS FOR CURRENT YEAR.-- Records fair except those for estimated daily discharges, which are poor. |
Discharge, cubic feet per second, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004 DAILY MEAN VALUES |
||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
DAY | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP |
1 | 55 | e32 | 582 | 1760 | e170 | 208 | 4020 | 213 | 378 | 135 | 79 | 140 |
2 | 46 | e31 | 475 | 1380 | e165 | 222 | 3460 | 297 | 324 | 121 | 77 | 92 |
3 | 42 | e35 | 383 | 1060 | e155 | 210 | 2450 | 275 | 264 | 118 | 63 | 66 |
4 | 39 | e36 | 341 | 1570 | e150 | 282 | 1690 | 233 | 216 | 153 | 52 | 51 |
5 | 37 | e35 | 331 | 3310 | e140 | 761 | 1240 | 211 | 190 | 157 | 46 | 43 |
6 | 39 | e35 | 323 | 3790 | e140 | 1190 | 969 | 198 | 179 | 155 | 42 | 35 |
7 | 36 | e36 | 305 | 3260 | e135 | 1600 | 790 | 185 | 174 | 144 | 42 | 30 |
8 | 31 | e44 | 287 | 2320 | e130 | 1420 | 657 | 168 | 166 | 182 | 35 | 25 |
9 | 27 | e37 | 283 | 1490 | e125 | 1080 | 561 | 160 | 153 | 278 | 31 | 23 |
10 | 25 | e35 | 291 | 1030 | e120 | 835 | 475 | 155 | 145 | 223 | 29 | 24 |
11 | 25 | e35 | 303 | 785 | e120 | 650 | 399 | 159 | 153 | 354 | 28 | 22 |
12 | 25 | e34 | 303 | 631 | e120 | 515 | 346 | 284 | 397 | 634 | 49 | 21 |
13 | 25 | e34 | 269 | 545 | e120 | 415 | 307 | 349 | 744 | 828 | 53 | 19 |
14 | e28 | e34 | 252 | 496 | e120 | 341 | 280 | 386 | 980 | 886 | 38 | 19 |
15 | e38 | e35 | 251 | 455 | e115 | 298 | 254 | 530 | 961 | 840 | 33 | 19 |
16 | e60 | e36 | 249 | 419 | e115 | 275 | 230 | 810 | 915 | 834 | 29 | 22 |
17 | e55 | e37 | 239 | 414 | e115 | 265 | 218 | 1050 | 895 | 814 | 27 | 60 |
18 | e48 | e150 | 223 | 576 | e130 | 259 | 205 | 1040 | 879 | 697 | 28 | 63 |
19 | e43 | 631 | 206 | 654 | e180 | 239 | 189 | 904 | 945 | 530 | 29 | 46 |
20 | e40 | 989 | 191 | 634 | e300 | 227 | 187 | 820 | 935 | 389 | 34 | 39 |
21 | e38 | 1610 | 157 | 540 | 471 | 221 | 209 | 892 | 797 | 285 | 45 | 32 |
22 | e36 | 1710 | 185 | 440 | 469 | 197 | 243 | 909 | 623 | 226 | 47 | 25 |
23 | e36 | 1400 | 498 | 353 | 388 | 178 | 231 | 814 | 497 | 200 | 37 | 21 |
24 | e35 | 1320 | 886 | 288 | 330 | 173 | 248 | 711 | 396 | 169 | 34 | 22 |
25 | e34 | 1320 | 1260 | e300 | 315 | 175 | 280 | 640 | 311 | 143 | 35 | 20 |
26 | e33 | 1380 | 1480 | e330 | 291 | 455 | 278 | 620 | 256 | 119 | e45 | 17 |
27 | e32 | 1290 | 1230 | e300 | 261 | 988 | 263 | 609 | 227 | 100 | e70 | 17 |
28 | e35 | 1060 | 952 | e260 | 231 | 2980 | 228 | 569 | 195 | 90 | e85 | 17 |
29 | e37 | 866 | 977 | e220 | 209 | 4260 | 203 | 493 | 167 | 83 | e76 | 15 |
30 | e34 | 707 | 1280 | e200 | --- | 3850 | 191 | 462 | 150 | 77 | e66 | 13 |
31 | e32 | --- | 1740 | e180 | --- | 3870 | --- | 422 | --- | 76 | 115 | --- |
TOTAL | 1146 | 15034 | 16732 | 29990 | 5830 | 28639 | 21301 | 15568 | 13612 | 10040 | 1499 | 1058 |
MEAN | 37.0 | 501 | 540 | 967 | 201 | 924 | 710 | 502 | 454 | 324 | 48.4 | 35.3 |
MAX | 60 | 1710 | 1740 | 3790 | 471 | 4260 | 4020 | 1050 | 980 | 886 | 115 | 140 |
MIN | 25 | 31 | 157 | 180 | 115 | 173 | 187 | 155 | 145 | 76 | 27 | 13 |
CFSM | 0.08 | 1.06 | 1.14 | 2.05 | 0.43 | 1.95 | 1.50 | 1.06 | 0.96 | 0.68 | 0.10 | 0.07 |
IN. | 0.09 | 1.18 | 1.32 | 2.36 | 0.46 | 2.25 | 1.68 | 1.22 | 1.07 | 0.79 | 0.12 | 0.08 |
e Estimated |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1971 - 2004, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 170 | 312 | 509 | 470 | 622 | 747 | 726 | 806 | 528 | 282 | 167 | 101 |
MAX | 1189 | 2205 | 1626 | 1862 | 2028 | 2565 | 2116 | 2881 | 1864 | 1166 | 952 | 817 |
(WY) | 1994 | 1993 | 1988 | 1974 | 1982 | 1979 | 1994 | 2002 | 1974 | 1973 | 1981 | 1993 |
MIN | 12.7 | 22.2 | 16.7 | 14.2 | 43.8 | 101 | 56.0 | 103 | 48.0 | 16.8 | 14.9 | 10.4 |
(WY) | 1985 | 2003 | 1977 | 1977 | 2003 | 2003 | 2003 | 1976 | 1988 | 1988 | 1988 | 1999 |
SUMMARY STATISTICS | FOR 2003 CALENDAR YEAR | FOR 2004 WATER YEAR | WATER YEARS 1971 - 2004 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 79214.4 | 160449 | ||||
ANNUAL MEAN | 217 | 438 | 453 | |||
HIGHEST ANNUAL MEAN | 838 | 1973 | ||||
LOWEST ANNUAL MEAN | 132 | 2003 | ||||
HIGHEST DAILY MEAN | 2020 | May 12 | 4260 | Mar 29 | 10700 | May 13 2002 |
LOWEST DAILY MEAN | 9.8 A | Jan 25,26 | 13 | Sep 30 | 0.00 | Sep 11 1988 |
ANNUAL SEVEN-DAY MINIMUM | 9.9 A | Jan 21 | 17 | Sep 24 | 2.7 | Sep 8 1988 |
MAXIMUM PEAK FLOW | 4420 B | Mar 29 | 11000 | May 13 2002 | ||
MAXIMUM PEAK STAGE | 13.74 C | Jan 6 | 17.85 | May 13 2002 | ||
INSTANTANEOUS LOW FLOW | 12 | Sep 30 | ||||
ANNUAL RUNOFF (CFSM) | 0.459 | 0.927 | 0.957 | |||
ANNUAL RUNOFF (INCHES) | 6.23 | 12.62 | 13.00 | |||
10 PERCENT EXCEEDS | 698 | 1040 | 1210 | |||
50 PERCENT EXCEEDS | 60 | 214 | 173 | |||
90 PERCENT EXCEEDS | 19 | 32 | 20 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |