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;1999-2002.
 

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 rain gage, water-quality monitor, 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 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 20  301  670  e150  3800  278  438  882  225  115    6.7 2.5  
2 16  549  483  e140  2650  274  1050  779  213  98    5.6 2.2  
3 13  1140  370  e135  1570  e320  1970  665  202  86    4.5 2.5  
4 10  742  306  e135  1130  e400  1180  512  199  78    3.5 2.1  
5 192  534  266  140  778  e500  807  436  271  70    13    1.6  
 
6 403  417  239  139  577  e700  619  405  232  60    12    1.3  
7 323  348  217  128  460  e1000  531  375  201  53    5.5 0.96
8 223  303  196  116  377  3130  937  330  186  47    3.6 0.93
9 173  260  172  125  432  4600  4460  1070  178  80    2.9 0.95
10 146  238  149  123  1430  3210  2530  1390  175  61    2.5 0.93
 
11 127  224  139  102  1370  1410  1450  1370  198  49    1.8 0.62
12 632  188  130  89  963  1010  983  9470  219  40    1.4 0.49
13 1540  175  142  87  683  909  715  12100  193  33    1.2 0.46
14 4920  188  162  96  524  770  590  4200  186  27    1.5 0.39
15 2690  185  197  88  453  630  516  2110  209  22    1.7 0.36
 
16 1610  167  246  79  381  460  433  1430  176  17    2.3 0.36
17 1280  149  442  72  312  386  385  1230  153  13    2.4 0.30
18 934  140  770  e74  260  352  359  981  139  12    1.9 0.47
19 713  148  592  76  298  300  350  771  128  18    3.9 1.2  
20 547  145  426  74  1320  297  307  615  120  23    30    2.7  
 
21 436  131  326  78  1490  266  334  503  113  15    19    2.2  
22 391  130  291  75  908  221  443  433  107  14    9.8 1.6  
23 1160  125  290  75  656  232  383  392  107  12    11    1.9  
24 1360  128  251  71  539  220  351  470  105  8.5 9.7 2.6  
25 1510  142  231  65  454  202  631  507  105  6.4 9.4 2.2  
 
26 1090  132  e205  61  384  187  633  386  109  5.3 7.0 1.7  
27 695  122  e200  59  318  182  572  320  140  5.9 6.1 1.4  
28 520  116  e195  62  293  264  2950  293  206  5.8 5.3 1.2  
29 420  117  e190  64  ---  387  2150  276  192  6.0 4.2 0.98
30 344  280  e180  190  ---  603  1250  255  143  7.1 3.5 0.68
 
31 315  ---  e165  1890  ---  556  ---  242  ---  6.4 2.8 ---     

TOTAL 24753 7964 8838 4858 24810 24256 30307 45198 5130 1094.4 195.7 39.78
MEAN 798.5 265.5 285.1 156.7 886.1 782.5 1010 1458 171.0 35.30 6.313 1.326
MAX 4920 1140 770 1890 3800 4600 4460 12100 271 115 30 2.7
MIN 10 116 130 59 260 182 307 242 105 5.3 1.2 0.30
CFSM 1.75 0.58 0.63 0.34 1.95 1.72 2.22 3.20 0.38 0.08 0.01 0.00
IN. 2.02 0.65 0.72 0.40 2.03 1.98 2.48 3.70 0.42 0.09 0.02 0.00
e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1940 - 2002, BY WATER YEAR (WY)
MEAN 148.8 232.2 299.7 302.0 454.4 653.2 689.9 533.1 468.4 215.8 89.78 158.3
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 0.000 0.15 0.10 0.10 0.56 2.14 26.7 46.7 13.9 0.40 0.58 0.000
(WY) 1940 1957 1940 1940 1940 1940 1940 1956 1988 1988 1947 1946

SUMMARY STATISTICS FOR 2001 CALENDAR YEAR FOR 2002 WATER YEAR WATER YEARS 1940 - 2002
ANNUAL TOTAL 159887.71 177443.88
ANNUAL MEAN 438.0   486.1   352.7      
HIGHEST ANNUAL MEAN 819          1993
LOWEST ANNUAL MEAN 20.6       1940
HIGHEST DAILY MEAN 9280          Feb 10 12100          May 13 19400          Dec 4 1982
LOWEST DAILY MEAN 0.00     A 0.30     Sep 17 0.00     B
ANNUAL SEVEN-DAY MINIMUM 0.00     Aug 11 0.40     Sep 12 0.00     B
MAXIMUM PEAK FLOW 14100          May 13 22400      C Dec 4 1982
MAXIMUM PEAK STAGE 15.05     May 13 19.70 D Jul 15 1958
INSTANTANEOUS LOW FLOW 0.21     Sep 17
ANNUAL RUNOFF (CFSM) 0.96 1.07 0.78    
ANNUAL RUNOFF (INCHES) 13.07 14.51 10.53    
10 PERCENT EXCEEDS 1040      1150      873         
50 PERCENT EXCEEDS 162      199      95         
90 PERCENT EXCEEDS 5.0   2.5   1.6      

A - Several days.

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