Station list
Available data
ILLINOIS RIVER BASIN
05542000 MAZON RIVER NEAR COAL CITY, IL
LOCATION.--Lat 41°17'10", long 88°21'35", in SW1/4SW1/4 sec.31, T.33
N., R.8 E., Grundy County, Hydrologic Unit 07120005, on right bank
at downstream side of bridge on State Highway 113, 0.3 mi downstream
from Johnny Run, 3 mi west of Coal City, and at mile 15.0.
DRAINAGE AREA.--455 mi2.
PERIOD OF RECORD.--October 1939 to September 1995. Annual maximum,
water years 1997-98. October 1998 to September 1999.
REVISED RECORDS.--WSP 1035: 1943(P). WSP 1115: 1946. WDR IL-75-1:
Drainage area.
GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 527.41
ft. above sea level. Prior to Apr. 30, 1940, and October 1996 to
September 1998, non-recording gage at same site and datum.
REMARKS.--Records good except those for Oct. 1 to Nov. 18 and those for
estimated discharges, which are poor. U.S. Army Corps of Engineers
satellite telemeter at station.
EXTREMES OUTSIDE PERIOD OF RECORD.--Flood of Aug. 8, 1924 reached a stage
of about 21 ft, discharge not determined.
DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999
DAILY MEAN VALUES
|
|---|
| DAY | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP
|
|---|
|
|
| 1 | 3.0 | 4.6 | 6.2 | e5.5 | 865 | 141 | 160 | 430 | 219 | 122 | 2.8 | 1.7
|
| 2 | 3.0 | 5.1 | 5.6 | e6.9 | 1010 | 126 | e153 | 367 | 356 | 147 | 2.4 | 1.5
|
| 3 | 3.0 | 4.6 | 5.2 | e8.8 | 945 | 128 | e148 | 322 | 283 | 126 | 1.9 | 1.2
|
| 4 | 3.0 | 4.6 | 5.0 | e7.5 | 701 | 120 | e146 | 290 | 230 | 103 | 1.7 | 1.1
|
| 5 | 3.0 | 4.6 | 4.7 | e6.8 | 510 | 116 | 128 | 270 | 237 | 87 | 1.5 | 1.0
|
|
|
| 6 | 3.0 | 4.6 | 7.0 | e7.7 | 455 | 147 | 129 | 413 | 229 | 74 | 1.1 | .95
|
| 7 | e5.0 | 5.1 | 90 | e8.4 | 418 | 161 | 125 | 577 | 192 | 64 | 1.2 | .74
|
| 8 | e12 | 4.1 | 76 | e8.0 | 369 | 169 | 116 | 400 | 170 | 55 | 1.4 | .54
|
| 9 | e5.7 | e5.0 | 55 | e7.8 | 344 | 167 | 245 | 296 | 165 | 47 | 1.5 | .41
|
| 10 | 4.1 | e20 | 37 | e7.5 | 322 | e168 | 277 | 250 | 371 | 41 | 1.4 | .33
|
|
|
| 11 | 3.8 | e60 | 27 | e7.2 | 325 | e170 | 261 | 239 | 349 | 36 | 1.2 | .28
|
| 12 | 3.8 | e30 | 19 | e7.0 | 308 | e172 | 238 | 677 | 1020 | 29 | 1.5 | .37
|
| 13 | 3.8 | e15 | 14 | e6.9 | 216 | e178 | 198 | 3160 | 4500 | 23 | 1.8 | .48
|
| 14 | 3.8 | 10 | 12 | e6.8 | 220 | 184 | 192 | 2650 | 9220 | 17 | 1.9 | .54
|
| 15 | 3.8 | 9.6 | 11 | e6.7 | 226 | 198 | 242 | 1410 | 3650 | 14 | 1.7 | .56
|
|
|
| 16 | 3.6 | 9.0 | 9.6 | e6.8 | 213 | 318 | 3590 | 918 | 1660 | 11 | 1.5 | .59
|
| 17 | 3.6 | 9.0 | 8.6 | e6.9 | 194 | 1620 | 7340 | 1060 | 1090 | 10 | 1.7 | .61
|
| 18 | 3.6 | 9.0 | 10 | e7.0 | 172 | 1440 | 3600 | 1650 | 769 | 11 | 2.4 | .56
|
| 19 | 3.6 | 4.2 | 9.0 | e7.4 | 163 | 802 | 1920 | 955 | 594 | 8.6 | 4.6 | .56
|
| 20 | 3.6 | 3.5 | 7.9 | e8.4 | 149 | 591 | 1320 | 655 | 473 | 7.5 | 3.6 | .57
|
|
|
| 21 | 4.1 | 3.4 | 10 | e10 | 131 | 497 | 1070 | 520 | 389 | 6.5 | 2.8 | .50
|
| 22 | 3.6 | 3.4 | 21 | e100 | 119 | 388 | 1740 | 444 | 334 | 6.1 | 2.1 | .42
|
| 23 | 3.4 | 3.2 | 6.1 | e912 | 119 | 324 | 3950 | 384 | 294 | 7.0 | 2.1 | .43
|
| 24 | 3.4 | 2.7 | 5.4 | e2000 | 124 | 293 | 2560 | 373 | 286 | 8.1 | 4.1 | .38
|
| 25 | 3.4 | 2.9 | 5.0 | e2370 | 133 | 244 | 1390 | 311 | 244 | 11 | 6.6 | .41
|
|
|
| 26 | 3.2 | 3.3 | 4.8 | 1770 | 120 | 215 | 961 | 261 | 205 | 9.0 | 5.8 | .36
|
| 27 | 3.2 | 3.9 | 4.8 | 1510 | 123 | 203 | 724 | 229 | 186 | 6.5 | 3.7 | .37
|
| 28 | 3.0 | 5.2 | 5.0 | 2790 | 144 | 196 | 592 | 214 | 167 | 5.1 | 2.8 | .78
|
| 29 | 2.8 | 5.9 | e5.4 | 1650 | --- | 182 | 611 | 202 | 144 | 4.4 | 2.3 | 1.4
|
| 30 | e7.1 | 6.4 | e5.2 | 1150 | --- | 158 | 537 | 194 | 121 | 3.9 | 2.1 | 1.3
|
|
|
| 31 | e6.0 | --- | e5.0 | 955 | --- | 153 | --- | 199 | --- | 3.2 | 2.1 | ---
|
| TOTAL | 125.0 | 261.9 | 497.5 | 15363.0 | 9138 | 9969 | 34663 | 20320 | 28147 | 1103.9 | 75.3 | 20.94
|
| MEAN | 4.03 | 8.73 | 16.0 | 496 | 326 | 322 | 1155 | 655 | 938 | 35.6 | 2.43 | .70
|
| MAX | 12 | 60 | 90 | 2790 | 1010 | 1620 | 7340 | 3160 | 9220 | 147 | 6.6 | 1.7
|
| MIN | 2.8 | 2.7 | 4.7 | 5.5 | 119 | 116 | 116 | 194 | 121 | 3.2 | 1.1 | .28
|
| CFSM | .01 | .02 | .04 | 1.09 | .72 | .71 | 2.54 | 1.44 | 2.06 | .08 | .01 | .00
|
| IN. | .01 | .02 | .04 | 1.26 | .75 | .82 | 2.83 | 1.66 | 2.30 | .09 | .01 | .00
|
e Estimated
| STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1940 - 1999, BY WATER YEAR (WY)
|
|---|
| MEAN | 142 | 236 | 308 | 312 | 427 | 666 | 703 | 530 | 459 | 219 | 93.7 | 166
|
| MAX | 1148 | 2264 | 2398 | 1399 | 1489 | 3378 | 2316 | 2765 | 1776 | 1551 | 1406 | 2494
|
| (WY) | 1942 | 1986 | 1983 | 1950 | 1984 | 1979 | 1950 | 1943 | 1980 | 1958 | 1972 | 1989
|
| MIN | .000 | .15 | .10 | .10 | .56 | 2.14 | 26.7 | 46.7 | 13.9 | .40 | .58 | .000
|
| (WY) | 1940 | 1957 | 1940 | 1940 | 1940 | 1940 | 1940 | 1956 | 1988 | 1988 | 1947 | 1946
|
| SUMMARY STATISTICS | FOR 1999 WATER YEAR | WATER YEARS 1940 - 1999 | |
|---|
| ANNUAL TOTAL | 119684.54 | | | |
| ANNUAL MEAN | 328 | | 354 | |
| HIGHEST ANNUAL MEAN | | | 819 | 1993 |
| LOWEST ANNUAL MEAN | | | 20.6 | 1940 |
| HIGHEST DAILY MEAN | 9220 | Jun 14 | 19400 | Dec 4 1982 |
| LOWEST DAILY MEAN | .28 | Sep 11 | .00 | A |
| ANNUAL SEVEN-DAY MINIMUM | .41 | Sep 21 | .00 | Oct 1 1939 |
| INSTANTANEOUS PEAK FLOW | 10200 | Jun 14 | 22400 B | Dec 4 1982 |
| INSTANTANEOUS PEAK STAGE | 12.56 | Jun 14 | 19.70 | Jul 15 1958 |
| INSTANTANEOUS LOW FLOW | .28 | Sep 10-12 | | |
| ANNUAL RUNOFF (CFSM) | .72 | | .78 | |
| ANNUAL RUNOFF (INCHES) | 9.79 | | 10.58 | |
| 10 PERCENT EXCEEDS | 914 | | 879 | |
| 50 PERCENT EXCEEDS | 19 | | 94 | |
| 90 PERCENT EXCEEDS | 1.5 | | 1.6 | |
A - At times in many years.
B - Gage height, 19.51 ft.