Station list     Available data
ILLINOIS RIVER BASIN


05547755                   SQUAW CREEK AT ROUND LAKE, IL



LOCATION.--Lat 42°21'00", long 88°05'13", 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.--October 1989 to current year.

GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 764.94 ft above sea level.

REMARKS.--Records good except those for estimated daily discharges, which are poor. Gage-height telemeter at station.
DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
 
1 3.6 5.5 4.6 e3.6 59  16    9.4 51    11    3.8 1.4   .93
2 1.7 4.5 4.1 e4.0 67  16    8.6 45    48    3.7 1.1   .95
3 2.3 4.1 3.7 e4.0 68  18    7.1 40    39    3.7 1.2   .91
4 1.8 3.4 3.5 e4.0 63  18    7.4 36    27    3.3 1.0   .94
5 3.3 2.8 3.1 e3.9 53  18    6.7 32    21    3.0 .92 .93
 
6 3.6 2.4 13    e4.0 50  18    7.0 29    18    2.7 .98 1.2  
7 3.5 1.8 51    e4.1 47  19    6.6 27    18    2.3 1.2   1.1  
8 2.6 2.1 41    e3.9 43  15    7.1 25    15    2.0 1.1   1.1  
9 2.2 7.3 30    e4.1 41  17    35    23    13    1.8 1.2   1.4  
10 2.2 49    23    e4.0 38  17    44    21    10    1.9 1.2   1.6  
 
11 e1.9 50    18    e3.9 49  15    38    18    8.6 1.8 1.1   1.6  
12 e1.8 36    16    e3.9 70  16    29    22    8.5 1.5 1.7   2.4  
13 e1.7 26    13    e3.9 51  16    20    22    54    1.4 1.4   1.0  
14 e1.7 20    11    e3.7 42  15    16    18    84    1.4 1.3   .82
15 e1.6 17    9.8 e3.8 37  16    22    15    60    1.4 1.4   .82
 
16 6.3 14    8.8 e4.1 34  25    75    15    42    1.4 1.2   .86
17 18    12    8.0 e5.0 29  46    81    28    30    1.8 1.1   .95
18 48    9.6 7.4 e5.2 25  45    62    35    23    1.5 1.0   1.0  
19 34    9.2 6.9 e5.2 21  34    50    28    18    1.6 4.2   1.1  
20 23    12    e6.4 e8.0 18  28    42    21    13    1.5 2.1   .79
 
21 18    5.9 5.3 38    18  24    47    18    11    1.5 1.5   .87
22 17    4.9 e5.0 92    16  19    93    21    9.3 1.6 1.4   .86
23 9.5 5.3 e4.9 137    14  16    175    19    7.8 2.5 1.7   1.0  
24 6.0 4.6 e5.0 134    12  15    172    17    6.6 5.1 1.2   1.3  
25 4.4 4.2 e5.0 139    12  13    134    15    5.4 3.7 1.4   1.1  
 
26 3.2 3.9 e5.0 132    12  12    90    12    4.8 2.5 1.1   1.1  
27 3.2 8.3 e5.0 123    13  11    71    9.9 4.4 1.9 .99 3.8  
28 3.4 4.1 e4.9 123    16  11    85    8.7 5.0 1.4 .99 27     
29 4.1 3.8 e4.5 99    ---  9.8 73    7.6 3.9 1.3 .89 31     
30 5.9 4.5 e4.2 76    ---  8.8 59    6.8 3.6 1.2 .96 20     
 
31 7.3 ---    e3.8 66    ---  8.2 ---    6.6 ---    1.4 1.1   ---     

TOTAL 246.8 338.2 334.9 1245.3 1018 575.8 1572.9 692.6 622.9 67.6 41.03 110.43
MEAN 7.96 11.3 10.8 40.2 36.4 18.6 52.4 22.3 20.8 2.18 1.32 3.68
MAX 48 50 51 139 70 46 175 51 84 5.1 4.2 31
MIN 1.6 1.8 3.1 3.6 12 8.2 6.6 6.6 3.6 1.2 .89 .79
CFSM .47 .66 .64 2.36 2.14 1.09 3.08 1.31 1.22 .13 .08 .22
IN. .54 .74 .73 2.73 2.23 1.26 3.44 1.52 1.36 .15 .09 .24

e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1990 - 1999, BY WATER YEAR (WY)
MEAN 2.96 13.2 12.2 16.7 23.9 28.7 34.7 28.7 17.4 9.25 2.40 2.62
MAX 8.55 33.6 26.6 40.2 44.6 45.8 79.4 99.6 74.4 54.0 7.60 12.9
(WY) 1991 1993 1992 1999 1997 1990 1993 1996 1996 1993 1990 1992
MIN .40 1.16 .98 3.14 10.9 7.56 9.33 3.36 .76 .44 .19 .11
(WY) 1995 1997 1990 1994 1995 1996 1994 1994 1992 1991 1991 1994

SUMMARY STATISTICS FOR 1998 CALENDAR YEAR FOR 1999 WATER YEAR WATER YEARS 1990 - 1999
ANNUAL TOTAL 6337.10 6866.46
ANNUAL MEAN 17.4   18.8   16.0      
HIGHEST ANNUAL MEAN 27.6       1993
LOWEST ANNUAL MEAN 9.47     1994
HIGHEST DAILY MEAN 135          Apr 16 175          Apr 23 284          May 21 1996
LOWEST DAILY MEAN .00     Jul 31-Aug 3 .79     Sep 20 .00     A
ANNUAL SEVEN-DAY MINIMUM .03     Jul 28 .91     Sep 14 .00     Sep 10 1994
INSTANTANEOUS PEAK FLOW 187          Apr 23 312      B Jul 18 1993
INSTANTANEOUS PEAK STAGE 4.76     Apr 23 6.42     Jul 18 1993
INSTANTANEOUS LOW FLOW .62     Aug 2
ANNUAL RUNOFF (CFSM) 1.02 1.11 .94    
ANNUAL RUNOFF (INCHES) 13.87 15.03 12.78    
10 PERCENT EXCEEDS 46      50      40         
50 PERCENT EXCEEDS 9.6   7.4   6.8      
90 PERCENT EXCEEDS .70 1.2   .51    
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