Station list     Available data
ILLINOIS RIVER BASIN


05547755       SQUAW CREEK AT ROUND LAKE, IL

 

LOCATION.-- Lat 42°21'00", long 88°05'18" (NAD of 1927), in SW1/4NE1/4 sec.29, T.45 N., R.10 E., Lake County, Hydrologic Unit 07120006, on left bank at upstream side of bridge on MacGillis Road at Round Lake, and at mile 7.5.
 

DRAINAGE AREA.-- 17.2 mi2.
 

PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE
 

DISCHARGE: October 1989 to current year.
 

STAGE: Water years 1994 to current year.
 

GAGE.-- Water-stage recorder, phone telemeter, and crest-stage gage. Datum of gage is 764.94 ft above NGVD of 1929.
 

EXTREMES FOR PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 312 ft3/s, July 18, 1993, from rating curve extended above 120 ft3/s on basis of slope-area measurement of peak flow, gage height, 6.42 ft; no flow at times in 1991, 1994 and 1998.
 

REMARKS FOR CURRENT YEAR.-- Records good 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 0.23 1.2 4.7 8.2 e2.2 33  55    12    76    6.9 1.2   0.74
2 0.21 3.9 4.1 7.8 e2.2 41  44    12    60    5.7 0.69 0.69
3 0.72 14    3.7 7.8 e2.2 34  36    11    48    7.6 1.1   0.62
4 0.44 20    3.1 7.0 e2.2 32  30    11    40    18    3.5   0.62
5 0.42 40    4.9 7.0 e2.2 91  26    9.4 33    14    2.1   0.57
 
6 0.43 22    6.0 7.7 e2.3 95  22    8.5 29    11    1.9   0.60
7 0.45 11    5.4 5.1 e2.3 84  19    7.7 25    9.2 1.5   0.63
8 0.33 7.3 5.0 5.4 e2.4 71  16    8.0 21    8.4 1.1   0.54
9 0.22 5.4 6.5 5.1 e2.4 57  14    9.8 21    8.6 0.87 0.45
10 0.22 4.4 56    5.0 e2.3 48  13    10    49    26    0.65 0.47
 
11 0.19 3.8 64    e4.6 e2.2 40  11    13    76    20    0.59 0.62
12 0.34 3.4 46    e4.4 e2.2 32  10    14    86    13    0.63 1.1  
13 0.46 3.3 33    e4.2 e2.1 27  8.8 31    73    10    0.62 0.56
14 2.4   3.0 27    e4.0 e2.1 26  8.0 49    56    7.8 0.61 0.44
15 1.2   2.9 22    e3.8 e2.0 25  7.7 56    45    6.7 0.55 0.88
 
16 0.74 2.4 20    e3.7 e2.0 21  6.5 44    38    5.7 0.46 1.3  
17 0.74 2.5 17    e3.5 e2.1 19  6.4 35    33    4.9 0.75 1.3  
18 0.79 14    15    e3.4 e2.2 20  7.2 141    27    3.5 0.58 1.3  
19 0.78 21    13    e3.4 4.8 20  8.0 150    23    4.0 0.40 0.70
20 0.53 14    13    e3.3 9.2 19  9.5 123    20    3.1 0.32 0.43
 
21 0.41 10    9.3 e3.2 18    16  22    94    26    2.9 0.29 0.75
22 0.43 8.4 8.9 e3.0 26    15  19    155    38    3.2 0.28 1.4  
23 0.57 12    8.7 e2.9 32    15  16    183    27    5.7 0.27 1.6  
24 0.78 13    7.6 e2.7 33    23  14    163    22    4.4 0.70 1.6  
25 1.0   12    8.2 e2.5 31    29  20    128    19    3.4 0.57 0.89
 
26 0.85 7.8 6.2 e2.4 29    62  18    97    16    2.9 0.62 0.46
27 0.87 6.4 5.4 e2.3 19    65  16    75    13    2.5 0.87 0.29
28 1.1   5.5 8.0 e2.2 19    65  15    62    12    2.2 1.6   0.33
29 1.0   5.9 11    e2.2 21    88  13    54    10    1.9 1.4   0.34
30 0.94 5.0 11    e2.1 ---    79  11    61    8.0 1.7 1.1   0.34
 
31 0.94 ---    9.1 e2.1 ---    66  ---    76    ---    1.8 0.86 ---     

TOTAL 20.73 285.5 462.8 132.0 281.6 1358 522.1 1903.4 1070.0 226.7 28.68 22.56
MEAN 0.67 9.52 14.9 4.26 9.71 43.8 17.4 61.4 35.7 7.31 0.93 0.75
MAX 2.4 40 64 8.2 33 95 55 183 86 26 3.5 1.6
MIN 0.19 1.2 3.1 2.1 2.0 15 6.4 7.7 8.0 1.7 0.27 0.29
CFSM 0.04 0.56 0.88 0.25 0.57 2.58 1.02 3.61 2.10 0.43 0.05 0.04
IN. 0.05 0.62 1.01 0.29 0.62 2.97 1.14 4.17 2.34 0.50 0.06 0.05
e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1990 - 2004, BY WATER YEAR (WY)
MEAN 6.27 11.7 10.5 12.4 22.2 25.7 29.6 29.1 19.4 10.0 2.49 3.06
MAX 52.5 33.6 26.6 40.2 55.4 45.8 79.4 99.6 74.4 54.0 7.60 12.9
(WY) 2002 1993 1992 1999 2001 1990 1993 1996 1996 1993 1990 1992
MIN 0.40 0.92 0.98 0.74 0.45 2.12 7.76 3.36 0.76 0.44 0.19 0.11
(WY) 1995 2003 1990 2003 2003 2003 2003 1994 1992 1991 1991 1994

SUMMARY STATISTICS FOR 2003 CALENDAR YEAR FOR 2004 WATER YEAR WATER YEARS 1990 - 2004
ANNUAL TOTAL 2688.33   6314.07
ANNUAL MEAN 7.37   17.3   15.1        
HIGHEST ANNUAL MEAN 27.6         1993
LOWEST ANNUAL MEAN 5.61       2003
HIGHEST DAILY MEAN 77            May 9 183          May 23 284            May 21 1996
LOWEST DAILY MEAN 0.11       Sep 9 0.19     Oct 11 0.00       A
ANNUAL SEVEN-DAY MINIMUM 0.14       Sep 5 0.31     Oct 6 0.00       Sep 10 1994
MAXIMUM PEAK FLOW 196          May 22 312        B Jul 18 1993
MAXIMUM PEAK STAGE 4.97     May 22 6.42       Jul 18 1993
INSTANTANEOUS LOW FLOW 0.12     Oct 11
ANNUAL RUNOFF (CFSM) 0.433 1.01 0.891    
ANNUAL RUNOFF (INCHES) 5.88   13.82 12.11      
10 PERCENT EXCEEDS 22        49      38           
50 PERCENT EXCEEDS 2.9     6.9   6.0        
90 PERCENT EXCEEDS 0.35   0.58 0.57      

A - No flow at times in 1991, 1994 and 1998.

B - From rating curve extended above 120 ft3/s on basis of slope-area measurement of peak flow.


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data