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 1997 TO SEPTEMBER 1998
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
 
1 .42 .52 7.6 4.3 18  15  58  25    5.7 23      .00 .75
2 .38 .61 6.0 6.7 46  14  51  23    5.2 18      .00 .53
3 .35 .57 6.6 19    45  13  42  22    4.7 18      .00 .23
4 .29 .60 7.1 32    37  12  34  20    4.3 32      .14 .14
5 .33 .80 6.1 45    30  11  28  18    4.4 24      .25 .20
 
6 .32 1.5   5.1 56    26  11  24  16    4.1 17      1.1   .16
7 .33 1.2   4.6 68    24  11  23  60    4.4 14      .68 3.0  
8 .36 1.1   4.1 52    22  20  48  93    4.6 11      .73 2.2  
9 .41 1.0   3.8 45    20  28  70  70    4.8 19      1.0   .96
10 .36 1.0   4.3 39    19  31  56  50    5.1 24      .79 .70
 
11 .35 .82 5.1 e28    37  28  43  41    7.4 20      .62 .64
12 .35 .98 4.8 e22    63  21  37  33    10    15      .32 .53
13 .93 .86 4.3 e20    e49  18  29  68    9.2 15      .12 .35
14 .54 .81 4.2 e18    e30  15  29  58    7.3 9.9   .04 2.3  
15 .39 1.1   3.9 e16    e20  14  31  45    6.0 5.9   .07 3.7  
 
16 .38 1.1   4.4 e15    e16  13  135  33    5.2 3.9   .05 3.8  
17 .38 1.2   5.3 e14    e22  17  130  23    4.4 2.0   .02 2.4  
18 .36 1.1   5.9 e12    e34  69  96  17    5.0 1.2   .04 1.6  
19 .37 1.1   6.5 e11    35  75  69  15    8.3 .95 .12 .95
20 .37 1.2   6.3 11    32  63  59  14    7.4 .79 .19 1.1  
 
21 .39 2.1   5.6 9.8 29  54  75  13    5.7 .76 .49 1.7  
22 .36 2.4   5.3 9.6 27  44  67  12    4.6 .71 .54 1.1  
23 .34 2.3   5.2 9.6 24  36  55  11    3.8 .71 .74 1.1  
24 .42 2.0   4.8 9.4 21  30  46  11    3.1 .45 1.0   1.2  
25 .66 1.8   5.6 9.2 19  25  39  11    7.7 .47 1.5   1.3  
 
26 1.6   2.4   5.4 9.0 17  23  39  10    87    .62 .79 1.5  
27 1.8   2.6   5.2 9.0 17  20  36  7.9 73    .28 .69 2.1  
28 1.4   3.4   5.0 9.3 16  17  32  7.1 57    .11 .94 2.6  
29 .93 4.7   4.7 11    ---  16  29  8.4 43    .07 .70 3.0  
30 .64 8.9   4.4 13    ---  15  27  8.4 32    .04 .74 4.0  
 
31 .50 ---      4.3 13    ---  35  ---  7.2 ---    .00 .79 ---     

TOTAL 17.01 51.77 161.5 645.9 795 814 1537 851.0 434.4 278.86 15.20 45.84
MEAN .55 1.73 5.21 20.8 28.4 26.3 51.2 27.5 14.5 9.00 .49 1.53
MAX 1.8 8.9 7.6 68 63 75 135 93 87 32 1.5 4.0
MIN .29 .52 3.8 4.3 16 11 23 7.1 3.1 .00 .00 .14
CFSM .03 .10 .31 1.23 1.67 1.54 3.01 1.61 .85 .53 .03 .09
IN. .04 .11 .35 1.41 1.74 1.78 3.36 1.86 .95 .61 .03 .10

e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1990 - 1998, BY WATER YEAR (WY)
MEAN 2.41 13.4 12.4 14.0 22.5 29.8 32.7 29.5 17.0 10.0 2.52 2.51
MAX 8.55 33.6 26.6 30.3 44.6 45.8 79.4 99.6 74.4 54.0 7.60 12.9
(WY) 1991 1993 1992 1993 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 1997 CALENDAR YEAR FOR 1998 WATER YEAR WATER YEARS 1990 - 1998
ANNUAL TOTAL 4878.07 5647.48
ANNUAL MEAN 13.4   15.5   15.7      
HIGHEST ANNUAL MEAN 27.6       1993
LOWEST ANNUAL MEAN 9.47     1994
HIGHEST DAILY MEAN 211          Feb 22 135          Apr 16 284          May 21 1996
LOWEST DAILY MEAN .29     Oct 4 .00     Jul 31-Aug. 3 .00     A
ANNUAL SEVEN-DAY MINIMUM .34     Oct 2 .03     Jul 28 .00     Sep 10 1994
INSTANTANEOUS PEAK FLOW 149          Apr 16 312      B Jul 18 1993
INSTANTANEOUS PEAK STAGE 4.16     Apr 16 6.42     Jul 18 1993
ANNUAL RUNOFF (CFSM) .79 .91 .92    
ANNUAL RUNOFF (INCHES) 10.67 12.36 12.36    
10 PERCENT EXCEEDS 31      45      38         
50 PERCENT EXCEEDS 4.0   6.1   6.8      
90 PERCENT EXCEEDS .50 .37 .47    
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