Station list     Available data
ILLINOIS RIVER BASIN


05536340                   MIDLOTHIAN CREEK AT OAK FOREST, IL



LOCATION.--Lat 41°36'51", long 87°43'46", in SE1/4NW1/4 sec.15, T.36 N., R.13 E., Cook County, Hydrologic Unit 07120003, on right bank at downstream side of bridge on Kilbourn Avenue in Oak Forest, and at mile 5.9.

DRAINAGE AREA.--12.6 mi2.

PERIOD OF RECORD.--October 1950 to current year. Prior to October 1974, records published with those for streams in the St. Lawrence River basin (WSP 1307, 1727, 1911, 2111, WDR-IL 1971-74).

REVISED RECORDS.--WSP 1337: 1951-53: WSP 1911: Drainage area.

GAGE.--Water-stage recorder. Datum of gage is 620.41 ft above sea level (Cook County Highway Department bench mark).

REMARKS.--Records good except those for Feb. 5 - July 22, which are fair, and those for estimated daily discharges, which are poor. Diurnal fluctuation at low flow caused by small industrial plants upstream. Retention pond 1.0 mi upstream detains water during periods of heavy runoff and gradually releases water during the recession. Flow bypassed gage from Nov. 21, 1962, to Mar. 2, 1963, due to diversion 1.0 mi upstream. Gage-height telemeter at station.
DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
 
1 e1.0   e2.0 e9.0 e3.7 e16    11  81    31    1.6 13      .62 1.8  
2 e.90 e2.7 e5.6 e3.3 e37    12  69    17    7.7 3.7   .38 1.5  
3 e.84 e2.1 e5.2 e11    e21    11  48    12    13    4.0   .73 7.6  
4 e1.1   e2.5 e4.4 e105    e15    21  26    20    7.6 44      78      5.2  
5 e2.8   e2.1 e3.7 e90    e11    17  15    12    4.9 8.1   75      2.1  
 
6 e2.3   e3.2 e3.0 e80    8.1 16  12    33    3.7 4.2   26      1.2  
7 e2.8   e5.1 e2.4 e49    7.0 13  18    202    3.0 36      27      87     
8 e2.2   e3.8 e2.0 e96    6.2 61  69    208    2.1 17      58      48     
9 e4.3   e2.9 e1.9 e82    5.5 114  60    169    30    5.2   20      13     
10 e6.8   e2.0 e4.0 e38    7.7 86  42    95    9.7 3.3   14      7.1  
 
11 e4.2   e2.1 e12    e16    59    53  20    42    85    2.7   13      3.1  
12 e2.8   e2.1 e10    e12    69    34  14    23    77    1.7   3.6   1.8  
13 e4.6   e2.1 e6.4 e9.0 31    26  20    14    22    1.6   3.1   1.4  
14 e9.0   e2.1 e5.6 e7.4 16    26  43    19    10    1.6   2.7   1.4  
15 e4.8   e2.8 e3.5 e6.0 11    23  20    6.0 11    1.7   1.7   3.5  
 
16 e1.9   e8.8 e4.2 e5.2 14    21  17    4.4 5.3 1.6   1.2   3.8  
17 e1.2   e6.6 e6.4 e4.4 51    62  13    3.5 9.2 1.4   1.5   2.5  
18 e.76 e4.5 e5.8 e3.9 77    133  9.4 3.2 7.0 1.0   1.6   1.6  
19 e.50 e2.9 e5.6 e3.4 37    148  7.5 3.1 40    15      1.5   1.2  
20 e.43 e2.6 e5.4 e3.1 21    126  23    3.0 8.4 5.1   1.6   .91
 
21 e.37 e2.9 e4.6 e3.0 14    78  116    2.7 4.6 2.4   1.4   1.1  
22 e.27 e2.3 e5.6 e3.2 11    42  86    2.3 3.8 6.9   1.3   1.2  
23 e.19 e1.6 e11    e3.4 8.2 27  51    1.7 3.4 2.6   1.3   1.1  
24 e.30 e1.2 e9.0 e3.6 14    28  31    7.3 2.8 1.1   12      1.0  
25 e.55 e1.1 e32    e3.1 8.5 20  14    4.7 2.4 .56 14      1.6  
 
26 e1.7   e1.2 e19    e2.9 7.2 17  21    4.4 98    .29 4.0   1.1  
27 e37      e1.3 e12    e2.8 12    14  30    3.9 84    .45 2.9   .82
28 e7.0   e9.4 e8.8 e3.6 8.2 32  12    6.4 43    .69 7.9   .84
29 e4.6   e17    e5.8 e5.6 ---    16  54    5.9 20    .80 5.3   1.2  
30 e2.8   e14    e5.2 e8.6 ---    14  36    4.6 14    .83 2.3   6.6  
 
31 e2.0   ---    e4.7 e8.6 ---    55  ---    3.4 ---    .80 1.8   ---     

TOTAL 112.01 117.0 223.8 676.8 603.6 1357 1077.9 967.5 634.2 189.32 385.43 212.27
MEAN 3.61 3.90 7.22 21.8 21.6 43.8 35.9 31.2 21.1 6.11 12.4 7.08
MAX 37 17 32 105 77 148 116 208 98 44 78 87
MIN .19 1.1 1.9 2.8 5.5 11 7.5 1.7 1.6 .29 .38 .82
CFSM .29 .31 .57 1.73 1.71 3.47 2.85 2.48 1.68 .48 .99 .56
IN. .33 .35 .66 2.00 1.78 4.01 3.18 2.86 1.87 .56 1.14 .63

e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1951 - 1998, BY WATER YEAR (WY)
MEAN 6.86 10.2 11.3 10.5 13.7 22.8 21.4 16.0 12.4 8.95 5.97 7.29
MAX 70.9 40.7 70.9 43.9 68.9 86.9 53.5 46.1 60.0 67.8 22.0 43.6
(WY) 1955 1986 1983 1993 1997 1979 1973 1990 1981 1996 1979 1977
MIN .035 .17 .000 .000 .000 3.13 1.41 1.84 .88 .29 .25 .11
(WY) 1964 1965 1963 1963 1963 1964 1963 1968 1965 1964 1966 1963

SUMMARY STATISTICS FOR 1997 CALENDAR YEAR FOR 1998 WATER YEAR WATER YEARS 1951 - 1998
ANNUAL TOTAL 5093.98     6556.83    
ANNUAL MEAN 14.0       18.0       12.3      
HIGHEST ANNUAL MEAN 21.0       1993
LOWEST ANNUAL MEAN 2.68     1963
HIGHEST DAILY MEAN 282              Feb 21 208              May 8 448          Oct 11 1954
LOWEST DAILY MEAN .19 A     Oct 23 .19 A     Oct 23 .00     B
ANNUAL SEVEN-DAY MINIMUM .37 A     Oct 19 .37 A     Oct 19 .00     Nov 22 1962
INSTANTANEOUS PEAK FLOW 222              May 7 627      C Apr 22 1973
INSTANTANEOUS PEAK STAGE 4.24         May 7 9.00 D Jul 13 1957
ANNUAL RUNOFF (CFSM) 1.11     1.43     .97    
ANNUAL RUNOFF (INCHES) 15.04     19.36     13.23    
10 PERCENT EXCEEDS 29          53          31         
50 PERCENT EXCEEDS 4.2       6.0       3.5      
90 PERCENT EXCEEDS .91     1.2       .50    
A - Estimated.
C - At times in most years.
C - Gage height, 7.67 ft.
D - Discharge, 550 ft3/s.


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data