Station list     Available data
ILLINOIS RIVER BASIN


05542000       MAZON RIVER NEAR COAL CITY, IL

 

LOCATION.-- Lat 41°17'10", long 88°21'35" (NAD of 1927), 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.--

SURFACE-WATER DISCHARGE AND STAGE
 

DISCHARGE: October 1939 to October 1995. October 1998 to current year.
 

STAGE: Water years 1994-1996;1999 to current year.
 

PARTIAL RECORD: Annual maximum, water years 1997-98.

SURFACE-WATER QUALITY
 

CHEMICAL: Water years 1978-91.
 

REVISED RECORDS.-- WSP 1035: 1943(P). WSP 1115: 1946. WDR IL-75-1: Drainage area.
 

GAGE.-- Water-stage recorder, U.S. Army Corps of Engineers satellite telemeter, and crest-stage gage. Datum of gage is 527.41 ft. above NGVD of 1929. Prior to Apr. 30, 1940, and October 1996 to September 1998, nonrecording gage at same site and datum.
 

EXTREMES FOR PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 22,400 ft3/s, Dec. 4, 1982, gage height, 19.51 ft; maximum gage height, 19.70 ft, July 15, 1958, discharge, 17,600 ft3/s, from rating extended above 12,000 ft3/s; no flow at times in many years.
 

EXTREMES OUTSIDE PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE: Flood of Aug. 8, 1924 reached a stage of about 21 ft, discharge not determined.
 

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 3.1 5.3 255  111  e42  137  1070  687  4810  78    5.8 497   
2 2.8 6.2 197  113  e44  156  836  854  1790  71    5.9 318   
3 2.6 8.7 177  124  e46  140  682  626  1250  66    5.6 208   
4 2.5 12    177  119  e44  144  556  502  879  74    146    135   
5 2.4 68    193  110  e42  1990  452  425  659  78    354    95   
 
6 2.2 73    243  100  e40  2540  407  357  524  77    188    74   
7 2.0 54    266  122  e38  1440  386  356  428  61    87    58   
8 1.8 46    299  90  e37  990  352  553  351  50    48    46   
9 1.7 37    323  98  e34  761  301  541  295  45    31    38   
10 1.8 32    639  88  e33  599  261  428  285  49    21    32   
 
11 1.6 31    1080  82  e32  514  243  367  614  51    15    27   
12 1.2 29    700  94  e31  410  226  422  1680  54    13    24   
13 1.1 24    492  95  e30  340  216  451  1400  51    10    21   
14 2.3 21    417  99  e29  314  214  698  897  42    9.3 18   
15 2.9 22    352  117  e28  292  195  1400  646  33    7.2 16   
 
16 8.0 21    317  101  e27  269  182  1050  506  30    6.2 20   
17 6.3 20    271  93  e26  268  180  747  429  31    6.9 25   
18 5.2 233    242  129  e32  259  174  595  361  32    23    19   
19 4.1 2040    218  136  e40  243  170  490  302  48    176    15   
20 3.7 1440    202  100  e60  240  179  431  260  43    154    12   
 
21 3.2 892    246  83  e125  232  310  386  245  32    112    11   
22 3.3 634    178  99  e325  199  376  363  248  25    74    9.7
23 3.5 536    162  81  e250  192  287  376  225  19    52    8.9
24 3.4 1110    146  68  264  213  253  353  191  15    39    8.1
25 5.7 1020    137  e62  216  229  693  418  166  11    46    7.3
 
26 14    690    167  e58  175  276  1010  615  135  9.4 396    6.6
27 12    533    116  e52  155  710  676  496  113  8.2 705    6.4
28 12    435    122  e46  122  734  498  404  109  7.2 1900    6.1
29 8.9 358    131  e43  116  1690  389  325  99  6.3 1770    5.5
30 6.5 313    127  e40  ---  1490  327  758  88  6.0 1280    5.1
 
31 6.0 ---    120  e40  ---  1150  ---  6590  ---  6.0 799    ---   

TOTAL 137.8 10744.2 8712 2793 2483 19161 12101 23064 19985 1209.1 8485.9 1772.7
MEAN 4.45 358 281 90.1 85.6 618 403 744 666 39.0 274 59.1
MAX 14 2040 1080 136 325 2540 1070 6590 4810 78 1900 497
MIN 1.1 5.3 116 40 26 137 170 325 88 6.0 5.6 5.1
CFSM 0.01 0.79 0.62 0.20 0.19 1.36 0.89 1.64 1.46 0.09 0.60 0.13
IN. 0.01 0.88 0.71 0.23 0.20 1.57 0.99 1.89 1.63 0.10 0.69 0.14
e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1940 - 2004, BY WATER YEAR (WY)
MEAN 144 231 295 294 441 642 674 534 466 226 91.7 154
MAX 1148 2264 2398 1399 2027 3378 2316 2765 1776 1551 1406 2494
(WY) 1942 1986 1983 1950 2001 1979 1950 1943 1980 1958 1972 1989
MIN 0.00 0.15 0.10 0.10 0.56 2.14 17.1 46.7 13.9 0.40 0.58 0.00
(WY) 1940 1957 1940 1940 1940 1940 2003 1956 1988 1988 1947 1946

SUMMARY STATISTICS FOR 2003 CALENDAR YEAR FOR 2004 WATER YEAR WATER YEARS 1940 - 2004
ANNUAL TOTAL 68644.68   110648.7    
ANNUAL MEAN 188        302        348           
HIGHEST ANNUAL MEAN 819            1993
LOWEST ANNUAL MEAN 20.6         1940
HIGHEST DAILY MEAN 6920            Jul 19 6590            May 31 19400            Dec 4 1982
LOWEST DAILY MEAN 0.68       A 1.1         Oct 13 0.00       B
ANNUAL SEVEN-DAY MINIMUM 0.72       Jan 23 1.6         Oct 7 0.00       B
MAXIMUM PEAK FLOW 8520            May 31 22400        C Dec 4 1982
MAXIMUM PEAK STAGE 11.35       May 31 19.70   D Jul 15 1958
INSTANTANEOUS LOW FLOW 0.96       Oct 13
ANNUAL RUNOFF (CFSM) 0.413 0.664 0.766    
ANNUAL RUNOFF (INCHES) 5.61   9.05   10.40      
10 PERCENT EXCEEDS 458        706        862           
50 PERCENT EXCEEDS 21        124        92           
90 PERCENT EXCEEDS 1.9     6.3     1.6        

A - Jan. 25-27, estimated due to backwater from ice.

B - At times in many years.

C - Gage height, 19.51 ft.

D - Discharge, 17,600 ft3/s, from rating extended above 12,000 ft3/s.


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data