Station list     Available data
ILLINOIS RIVER BASIN


05527950       MILL CREEK AT OLD MILL CREEK, IL

 

LOCATION.-- Lat 42°24'55", long 87°58'09" (NAD of 1983), in SW1/4SE1/4 sec.32, T.46 N., R.11 E., Lake County, Hydrologic Unit 07120004, on right bank at upstream side of bridge on Hunt Club Road, about 0.5 mi southeast of Old Mill Creek, and at mile 2.9.
 

DRAINAGE AREA.-- 61.0 mi2.
 

PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE
 

DISCHARGE: October 1989 to current year.
 

STAGE: Water years 1994 to current year.
 

PARTIAL RECORD: Annual maximum, water years 1962 to 1976.

SURFACE-WATER QUALITY
 

MISCELLANEOUS: Contaminants in streambed sediments, water year 2000.
 

REVISED RECORDS.-- WDR IL-77-1: 1962-76(M). WDR IL-91-2: 1990(P). WDR IL-92-2: 1990.
 

GAGE.-- Water-stage recorder, phone telemeter, and crest-stage gage. Datum of gage is 668.00 ft above NGVD of 1929 (667.74 ft NAVD 1988). Prior to Oct. 1, 1989, at datum 8.85 ft higher.
 

EXTREMES FOR PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 1,160 ft3/s, April 23, 1999, gage height 12.21 ft; maximum gage height, 12.88 ft, present datum, Mar. 6, 1976; minimum discharge, 0.03 ft3/s, Sept. 7, 8, 10, 11, 1991.
 

EXTREMES OUTSIDE PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE: Flood of March 31, 1960 reached a stage of 3.50 ft, from flood marks, discharge 778 ft3/s. A gage height of 13.73 ft, present datum, discharge unknown, occurred between October 1976 and September 1989, from mark on crest-stage gage.
 

REMARKS FOR CURRENT YEAR.-- Records good except those for estimated daily discharges, which are poor.
Discharge, cubic feet per second, WATER YEAR OCTOBER 2004 TO SEPTEMBER 2005
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
 
1 0.63 3.9 23    11  42  90  60  18  20    1.3 1.8   0.59
2 0.65 20    22    20  39  80  76  18  18    1.4 1.8   0.50
3 0.65 13    19    23  38  74  76  17  17    1.4 1.7   0.53
4 0.72 12    16    22  36  71  70  16  17    1.6 1.7   0.57
5 0.73 13    16    21  39  75  65  15  22    2.0 1.6   0.58
 
6 0.73 9.0 21    e18  56  90  62  15  19    2.0 1.6   0.60
7 0.73 7.0 65    e17  116  129  63  17  16    1.8 1.7   0.66
8 0.85 8.4 90    e16  133  116  57  16  15    1.6 1.7   0.74
9 0.96 9.5 66    e16  112  98  50  15  13    1.5 1.8   0.76
10 1.3   7.9 58    e17  97  89  45  16  12    1.4 1.8   0.76
 
11 1.5   6.7 54    24  88  82  41  22  11    1.4 2.0   0.71
12 0.89 5.6 49    39  83  75  41  28  10    1.5 2.5   0.67
13 0.62 4.9 43    362  99  67  42  56  9.7 1.5 1.7   0.63
14 0.67 4.2 32    193  301  61  44  47  9.0 1.4 1.6   0.69
15 1.3   3.5 32    150  313  56  44  39  5.8 1.4 1.6   0.63
 
16 1.4   3.7 30    140  285  54  38  34  3.8 1.4 1.7   0.80
17 0.28 5.5 27    120  229  55  32  30  3.3 1.4 1.8   0.69
18 0.23 7.2 25    107  178  55  31  28  2.9 1.3 2.3   0.61
19 0.23 12    18    96  152  66  31  35  2.5 1.3 7.0   0.70
20 0.26 17    e14    88  139  74  30  41  2.2 1.8 12      0.55
 
21 0.26 14    e12    82  130  72  29  38  2.0 1.8 9.9   0.52
22 0.24 13    12    e78  121  69  28  35  1.7 1.7 5.3   0.90
23 4.0   11    e9.8 e73  109  66  29  31  1.5 1.9 3.0   2.5  
24 6.6   9.9 e8.6 e69  99  63  29  28  1.4 1.9 1.9   2.6  
25 3.1   12    e7.8 e64  93  60  28  24  1.4 1.7 1.3   3.3  
 
26 1.2   11    e7.5 e62  87  57  26  22  1.5 1.7 1.1   7.3  
27 0.66 15    7.3 59  82  55  24  21  1.5 1.7 0.97 6.8  
28 0.52 24    6.8 56  90  53  22  22  1.4 1.6 0.68 4.8  
29 0.66 21    6.7 e53  ---  52  20  25  1.4 1.7 0.62 4.4  
30 5.8   19    6.8 50  ---  51  19  25  1.4 1.7 0.61 3.6  
 
31 3.5   ---    11    46  ---  58  ---  22  ---    1.7 0.64 ---     

TOTAL 41.87 323.9 816.3 2192 3386 2213 1252 816 244.4 49.5 77.42 49.69
MEAN 1.35 10.8 26.3 70.7 121 71.4 41.7 26.3 8.15 1.60 2.50 1.66
MAX 6.6 24 90 362 313 129 76 56 22 2.0 12 7.3
MIN 0.23 3.5 6.7 11 36 51 19 15 1.4 1.3 0.61 0.50
CFSM 0.02 0.18 0.43 1.16 1.98 1.17 0.68 0.43 0.13 0.03 0.04 0.03
IN. 0.03 0.20 0.50 1.34 2.07 1.35 0.76 0.50 0.15 0.03 0.05 0.03
e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1990 - 2005, BY WATER YEAR (WY)
MEAN 15.3 36.2 36.0 43.1 73.0 88.5 103 90.5 74.8 28.1 9.56 7.58
MAX 115 127 106 126 181 157 297 245 266 168 44.0 26.5
(WY) 2002 1993 1992 1993 2001 1993 1993 1996 2000 1993 1990 2000
MIN 1.35 2.66 5.81 3.50 2.37 10.1 22.8 11.9 3.45 1.00 0.55 0.43
(WY) 2005 2000 2003 2003 2003 2003 2003 1994 1992 1991 1991 2003

SUMMARY STATISTICS FOR 2004 CALENDAR YEAR FOR 2005 WATER YEAR WATER YEARS 1990 - 2005
ANNUAL TOTAL 21957.25   11462.08  
ANNUAL MEAN 60.0     31.4     50.2        
HIGHEST ANNUAL MEAN 102            1993
LOWEST ANNUAL MEAN 15.7         2003
HIGHEST DAILY MEAN 712            May 22 362            Jan 13 777            Apr 23 1999
LOWEST DAILY MEAN 0.23       Oct 18,19 0.23       Oct 18,19 0.03       Sep 11 1991
ANNUAL SEVEN-DAY MINIMUM 0.41       Oct 16 0.41       Oct 16 0.05       Sep 5 1991
MAXIMUM PEAK FLOW 436            Jan 13 1160        A Apr 23 1999
MAXIMUM PEAK STAGE 10.45       Jan 13 12.88   B Mar 6 1976
INSTANTANEOUS LOW FLOW 0.23       Oct 17-19,22,23 0.03       C
ANNUAL RUNOFF (CFSM) 0.984 0.515 0.824    
ANNUAL RUNOFF (INCHES) 13.40   6.99   11.20      
10 PERCENT EXCEEDS 172        82        128           
50 PERCENT EXCEEDS 15        15        23           
90 PERCENT EXCEEDS 1.3     0.73   1.9        

A - Gage height, 12.21 ft.

B - Present datum.

C - Sept. 7, 8, 10, 11, 1991.


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data