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.--
SURFACE-WATER DISCHARGE AND STAGE
 

DISCHARGE: October 1989 to current year.
 

STAGE: Water years 1994-2000.

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

REMARKS FOR CURRENT YEAR.-- Records good except those for estimated daily discharges, which are poor.
DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1999 TO SEPTEMBER 2000
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
 
1 12    3.1 2.7 e1.9 e1.4 20    4.9 20    47  15    39      .68
2 8.1 3.2 2.7 e2.4 e1.4 17    4.8 16    48  15    25      .72
3 8.1 2.8 3.3 e2.9 e1.4 17    4.6 14    35  99    15      .72
4 12    2.7 4.0 e3.2 e1.4 15    4.3 12    26  86    9.6   .76
5 11    2.7 13    e2.7 e1.4 16    4.0 9.9 39  60    8.5   .78
 
6 7.5 2.6 16    e2.4 e1.4 13    3.8 8.2 38  47    8.1   .64
7 5.3 2.6 12    e2.2 e1.6 13    4.5 6.9 28  36    6.8   .48
8 4.3 2.7 8.7 3.5 e2.2 12    6.7 6.7 21  25    7.1   .63
9 11    3.0 7.3 4.7 e2.7 10    9.0 9.7 16  22    5.5   .57
10 7.3 4.6 6.0 8.5 e3.6 8.7 8.4 18    13  85    4.5   .53
 
11 6.7 5.8 5.1 9.0 4.5 7.7 7.8 23    25  122    3.8   2.2  
12 5.8 3.4 4.8 7.1 4.1 7.1 7.6 24    77  103    3.2   8.3  
13 5.4 2.8 4.6 6.0 e3.8 7.3 7.1 17    103  75    2.8   6.6  
14 4.8 3.3 4.3 e5.0 e3.5 6.4 6.3 13    100  56    2.6   7.0  
15 4.3 2.7 4.6 e4.3 4.2 6.6 5.7 10    87  41    2.5   5.5  
 
16 3.8 2.5 4.7 e3.9 4.6 7.0 5.7 9.3 66  32    2.1   3.4  
17 3.7 2.4 4.3 e3.5 4.6 6.3 9.9 10    50  26    5.0   2.0  
18 3.4 2.4 4.3 e3.2 5.3 5.7 11    75    38  22    5.2   1.4  
19 3.3 2.6 3.7 e2.9 6.8 6.1 26    161    30  19    4.3   .82
20 3.0 2.8 e3.2 e2.6 6.1 13    109    140    27  16    3.2   1.5  
 
21 3.1 2.9 e2.8 e2.3 6.5 15    151    108    24  14    2.7   1.5  
22 3.0 2.9 e2.3 e2.1 25    13    147    93    18  11    2.4   17     
23 3.0 3.6 e1.9 e1.9 53    11    124    72    16  8.4 2.2   69     
24 3.9 2.9 e1.5 e1.8 60    10    92    54    23  6.9 2.1   47     
25 3.5 2.9 e1.3 e1.7 56    10    67    43    62  5.8 2.0   27     
 
26 3.1 3.0 e1.1 e1.6 45    11    52    36    56  5.2 2.0   17     
27 2.8 2.9 e1.2 e1.6 36    11    44    36    48  4.6 2.1   12     
28 2.8 2.8 e1.3 e1.5 28    8.8 38    38    34  4.2 1.7   8.6  
29 2.7 2.7 e1.3 e1.5 24    6.9 32    38    23  3.9 1.6   6.4  
30 2.7 2.6 e1.1 e1.5 ---    5.6 26    31    18  4.1 1.5   5.0  
 
31 3.1 ---    e1.2 e1.4 ---    5.1 ---    30    ---  27    .73 ---     

TOTAL 164.5 89.9 136.3 100.8 399.5 322.3 1024.1 1182.7 1236 1097.1 184.83 255.73
MEAN 5.31 3.00 4.40 3.25 13.8 10.4 34.1 38.2 41.2 35.4 5.96 8.52
MAX 12 5.8 16 9.0 60 20 151 161 103 122 39 69
MIN 2.7 2.4 1.1 1.4 1.4 5.1 3.8 6.7 13 3.9 .73 .48
CFSM .31 .18 .26 .19 .81 .61 2.01 2.24 2.42 2.08 .35 .50
IN. .36 .20 .30 .22 .87 .71 2.24 2.59 2.70 2.40 .40 .56

e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1990 - 2000, BY WATER YEAR (WY)
MEAN 3.17 12.2 11.5 15.4 22.9 27.1 34.6 29.6 19.5 11.6 2.72 3.16
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 1999 CALENDAR YEAR FOR 2000 WATER YEAR WATER YEARS 1990 - 2000
ANNUAL TOTAL 6337.26 6193.76
ANNUAL MEAN 17.4   16.9   16.1      
HIGHEST ANNUAL MEAN 27.6       1993
LOWEST ANNUAL MEAN 9.47     1994
HIGHEST DAILY MEAN 175          Apr 23 161          May 19 284          May 21 1996
LOWEST DAILY MEAN .79     Sep 20 .48     Sep 7 .00     A
ANNUAL SEVEN-DAY MINIMUM .91     Sep 14 .63     Sep 4 .00     Sep 10 1994
INSTANTANEOUS PEAK FLOW 200          May 18 312      B Jul 18 1993
INSTANTANEOUS PEAK STAGE 4.82     May 18 6.42     Jul 18 1993
INSTANTANEOUS LOW FLOW .25     Sep 7-10
ANNUAL RUNOFF (CFSM) 1.02 1.00 .95    
ANNUAL RUNOFF (INCHES) 13.87 13.55 12.84    
10 PERCENT EXCEEDS 48      47      40         
50 PERCENT EXCEEDS 5.1   6.0   6.8      
90 PERCENT EXCEEDS 1.2   1.6   .56    
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