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.--
SURFACE-WATER DISCHARGE AND STAGE
 

DISCHARGE: 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).
 

STAGE: Water years 1994-2001.

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

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

REMARKS.-- 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.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 627 ft3/s, Apr. 22, 1973, gage height, 7.67 ft; maximum gage height, 9.00 ft, July 13, 1957, discharge, 550 ft3/s; no flow at times in most years.

REMARKS FOR CURRENT YEAR.-- Records fair except those for Oct. 5 to Aug. 22, which are poor.
DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2000 TO SEPTEMBER 2001
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
 
1 1.4 1.1   6.6 e1.3 32    e20    5.8 8.4 19    e1.7   4.7 3.3  
2 1.7 .98 6.5 e1.3 e17    e16    5.6 7.6 14    e1.4   72    1.8  
3 2.6 e1.0   5.7 e1.4 e10    e14    5.3 7.1 12    e6.2   91    1.3  
4 50    e1.0   e4.8 e1.4 e7.4 11    5.0 6.4 10    e8.4   43    1.2  
5 20    1.0   e3.8 e1.4 e6.4 9.4 4.7 5.6 21    e4.0   16    1.1  
 
6 13    e1.0   e2.8 e1.4 e6.0 8.6 6.9 4.7 35    e2.5   12    1.6  
7 e6.8 13      2.2 e1.4 8.8 7.8 9.4 5.4 19    e2.5   e6.8 4.0  
8 7.4 2.6   e1.5 e1.4 25    7.4 9.0 6.9 12    e1.9   4.0 1.7  
9 4.6 53      e1.6 e1.3 219    7.0 8.5 6.7 9.1 e1.5   3.6 7.1  
10 4.3 85      e1.3 e1.3 214    6.3 8.5 6.1 7.6 e1.3   7.6 5.5  
 
11 2.2 13      e1.4 e1.3 144    6.0 7.9 6.6 7.4 e1.2   3.6 2.2  
12 e1.9 7.5   e2.2 e1.3 57    6.1 11    7.3 10    e.98 2.3 1.6  
13 2.1 15      e2.0 e1.4 29    7.2 12    7.1 11    e.80 2.8 1.3  
14 1.9 10      e1.8 e10    28    7.2 11    5.7 9.4 1.2   2.7 1.1  
15 1.5 16      e1.7 e40    28    11    19    e4.3 18    .68 2.2 .99
 
16 1.8 11      e1.6 30    23    30    21    e3.9 15    .70 8.2 .65
17 1.9 4.4   e1.5 24    18    31    15    e4.4 11    2.1   4.7 1.4  
18 e1.8 e2.8   e1.4 21    e14    30    13    e4.4 8.5 3.3   7.7 3.5  
19 e1.8 2.2   e1.4 16    e12    24    12    e3.3 7.4 2.1   9.5 43     
20 e1.7 e2.0   e1.3 9.8 e11    20    11    e2.8 6.6 2.1   6.6 14     
 
21 e1.8 e1.9   e1.3 e7.0 e10    16    14    3.3 6.5 14      e3.2 7.6  
22 e2.1 e1.8   e1.3 e5.6 e9.0 16    20    5.6 9.2 74      1.1 3.6  
23 e2.9 e1.7   e1.2 e4.7 e8.5 11    20    4.4 12    69      1.1 8.0  
24 e9.0 e1.7   e1.2 e4.1 35    9.3 17    8.7 9.5 32      1.2 11     
25 e7.0 2.9   e1.2 e3.8 115    8.6 14    13    7.8 21      44    5.4  
 
26 e5.2 8.2   e1.2 e3.5 69    7.7 12    26    6.6 20      57    3.5  
27 e3.8 7.5   e1.2 e3.3 37    7.2 11    68    e5.6 21      20    2.4  
28 2.7 6.1   e1.2 e3.2 23    6.9 11    38    e4.9 18      5.9 2.0  
29 1.8 7.5   e1.2 13    ---    6.9 11    17    e2.3 6.3   2.7 1.6  
30 1.5 7.2   e1.2 94    ---    6.5 9.8 13    e2.2 5.1   4.0 1.2  
 
31 1.4 ---      e1.3 62    ---    6.3 ---    11    ---    5.0   11    ---     

TOTAL 169.6 290.08 66.6 372.6 1216.1 382.4 341.4 322.7 329.6 331.96 462.2 144.64
MEAN 5.47 9.67 2.15 12.0 43.4 12.3 11.4 10.4 11.0 10.7 14.9 4.82
MAX 50 85 6.6 94 219 31 21 68 35 74 91 43
MIN 1.4 .98 1.2 1.3 6.0 6.0 4.7 2.8 2.2 .68 1.1 .65
CFSM .43 .77 .17 .95 3.45 .98 .90 .83 .87 .85 1.18 .38
IN. .50 .86 .20 1.10 3.59 1.13 1.01 .95 .97 .98 1.36 .43
e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1951 - 2001, BY WATER YEAR (WY)
MEAN 6.82 9.98 11.0 10.7 14.1 22.0 21.5 15.7 13.4 8.99 6.24 7.38
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 2000 CALENDAR YEAR FOR 2001 WATER YEAR WATER YEARS 1951 - 2001
ANNUAL TOTAL 4436.18 4429.88    
ANNUAL MEAN 12.1   12.1       12.3      
HIGHEST ANNUAL MEAN 21.0       1993
LOWEST ANNUAL MEAN 2.68     1963
HIGHEST DAILY MEAN 171          Jun 15 219              Feb 9 448          Oct 11 1954
LOWEST DAILY MEAN .98     Nov 2 .65         Sep 16 .00     A
ANNUAL SEVEN-DAY MINIMUM 1.1       Oct 31 .98 B     Jul 10 .00     Nov 22 1962
MAXIMUM PEAK FLOW 234              Feb 9 627      C Apr 22 1973
MAXIMUM PEAK STAGE 4.27         Feb 9 9.00 D Jul 13 1957
ANNUAL RUNOFF (CFSM) .96 .96     .98    
ANNUAL RUNOFF (INCHES) 13.10 13.08     13.26    
10 PERCENT EXCEEDS 29      24          31         
50 PERCENT EXCEEDS 4.0   6.5       3.6      
90 PERCENT EXCEEDS 1.4   1.3       .53    

A- At times in most years.
B- Estimated.
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