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 1994-2002.
 

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, in CFS, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
 
1 2.5 35    17    e4.8 e4.8 11    12    5.8 2.6 2.3   0.53 1.5
2 1.8 29    13    e4.7 e4.7 12    14    7.2 2.3 1.9   0.49 6.8
3 1.8 23    11    e4.6 e4.4 14    13    6.6 3.7 1.6   0.49 12   
4 1.6 19    10    e4.6 e4.3 17    12    5.5 42    1.5   0.80 7.3
5 3.4 20    9.8 e4.7 e4.3 9.6 10    4.6 63    1.4   0.73 5.1
 
6 3.0 18    8.4 e4.7 e4.4 9.4 9.6 4.2 68    1.8   0.63 3.8
7 2.5 16    7.4 4.7 4.7 12    11    3.8 157    1.5   0.61 3.1
8 2.2 14    6.8 4.8 5.4 42    28    3.5 87    1.5   0.59 2.6
9 2.1 13    6.1 5.0 7.9 78    74    3.7 43    2.4   0.63 2.3
10 2.4 12    6.8 5.1 20    68    75    3.3 30    1.7   0.63 2.1
 
11 3.5 11    6.2 4.5 21    55    65    5.7 21    1.5   0.63 2.0
12 17    9.9 5.7 4.1 16    41    45    43    16    1.3   0.65 1.9
13 58    11    12    3.8 13    35    34    42    12    1.1   3.2   2.0
14 132    10    13    4.0 12    29    27    27    11    0.86 2.1   2.1
15 124    9.5 11    3.9 11    22    21    19    9.0 0.78 1.5   2.1
 
16 85    9.3 10    3.5 9.9 20    17    17    7.9 0.73 1.1   2.0
17 57    7.0 9.6 3.8 9.2 17    12    20    6.5 0.75 0.78 2.0
18 44    7.4 9.1 3.8 13    13    11    16    6.2 0.85 0.69 2.2
19 34    7.8 9.8 3.6 18    14    9.6 12    5.4 1.0   0.95 2.6
20 28    7.2 9.8 3.5 32    15    8.4 11    5.1 0.83 0.71 2.6
 
21 22    5.8 9.0 3.4 49    16    7.9 8.9 4.3 0.73 1.9   2.5
22 20    5.3 8.5 3.2 40    12    8.1 7.3 3.6 0.69 23      2.5
23 137    5.8 9.2 4.0 30    10    7.3 5.9 3.2 0.66 25      2.3
24 185    7.0 8.2 4.4 23    8.7 6.9 5.2 3.0 0.67 14      2.2
25 174    8.6 e8.0 3.8 18    7.1 6.4 5.3 2.8 0.69 8.4   2.2
 
26 148    8.2 e7.2 3.7 17    7.4 5.5 5.3 3.3 0.66 5.4   2.1
27 112    7.1 6.6 3.5 15    7.1 5.3 4.7 3.0 0.81 3.9   2.0
28 79    6.2 6.0 3.8 14    7.0 6.9 4.8 2.7 0.73 3.2   2.0
29 56    6.3 5.5 4.1 ---    10    6.6 3.9 3.1 0.91 2.6   4.2
30 47    13    5.1 3.8 ---    17    5.7 3.5 2.9 0.86 2.2   3.2
 
31 41    ---    e4.9 e4.3 ---    15    ---    3.1 ---    0.70 1.9   ---   

TOTAL 1626.8 362.4 270.7 128.2 426.0 651.3 575.2 318.8 630.6 35.41 109.94 93.3
MEAN 52.48 12.08 8.732 4.135 15.21 21.01 19.17 10.28 21.02 1.142 3.546 3.110
MAX 185 35 17 5.1 49 78 75 43 157 2.4 25 12
MIN 1.6 5.3 4.9 3.2 4.3 7.0 5.3 3.1 2.3 0.66 0.49 1.5
CFSM 3.09 0.71 0.51 0.24 0.89 1.24 1.13 0.60 1.24 0.07 0.21 0.18
IN. 3.56 0.79 0.59 0.28 0.93 1.43 1.26 0.70 1.38 0.08 0.24 0.20
e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1990 - 2002, BY WATER YEAR (WY)
MEAN 7.021 12.74 10.88 13.92 24.81 26.16 32.23 26.56 19.10 10.05 2.687 3.445
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 1.16 0.98 3.14 10.9 7.56 9.33 3.36 0.76 0.44 0.19 0.11
(WY) 1995 1997 1990 1994 1995 1996 1994 1994 1992 1991 1991 1994

SUMMARY STATISTICS FOR 2001 CALENDAR YEAR FOR 2002 WATER YEAR WATER YEARS 1990 - 2002
ANNUAL TOTAL 6229.25 5228.65
ANNUAL MEAN 17.07 14.33 15.72    
HIGHEST ANNUAL MEAN 27.6       1993
LOWEST ANNUAL MEAN 9.47     1994
HIGHEST DAILY MEAN 200          Feb 10 185          Oct 24 284          May 21 1996
LOWEST DAILY MEAN 0.39     A 0.49     Aug 2,3 0.00     B
ANNUAL SEVEN-DAY MINIMUM 0.56     Aug 31 0.61     Aug 1 0.00     Sep 10 1994
MAXIMUM PEAK FLOW 236          Jun 7 312      C Jul 18 1993
MAXIMUM PEAK STAGE 5.64     Jun 7 6.42     Jul 18 1993
INSTANTANEOUS LOW FLOW 0.49     Aug 1-4
ANNUAL RUNOFF (CFSM) 1.00 0.84 0.92    
ANNUAL RUNOFF (INCHES) 13.63 11.44 12.56    
10 PERCENT EXCEEDS 34      34      39         
50 PERCENT EXCEEDS 8.3   6.2   6.6      
90 PERCENT EXCEEDS 1.1   1.2   0.65    

A - Aug. 8, Sept. 5.

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

C - 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