Station list     Available data
ILLINOIS RIVER BASIN


05540091                   SPRING BROOK AT FOREST PRESERVE NEAR WARRENVILLE, IL



LOCATION.--Lat 41°50'07", long 88°10'56", in SW1/4SW1/4 sec.26, T.39 N., R.9 E., Du Page County, Hydrologic Unit 07120004, on right bank on upstream side of footbridge in Roy C. Blackwell Forest Preserve, 0.7 mi upstream from the confluence with the West Branch Du Page River and 1 mi northwest of Warrenville.

DRAINAGE AREA.--6.83 mi2.

PERIOD OF RECORD.--October 1991 to current year.

GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 690.15 ft above sea level.

REMARKS.--Records good except those for estimated daily discharges, which are poor. Effluent from sewage-treatment plant 3 mi upstream averaged about 4 ft3/s per day.
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 7.6 e7.7 e9.8 e7.2 21  14  43  17    8.3 8.5 6.3 e8.4
2 e5.8 e7.4 e8.8 9.4 34  15  35  16    7.0 7.6 6.0 e7.0
3 e6.2 e7.3 e8.0 19    28  14  29  15    7.0 13    6.0 e7.0
4 e7.4 e7.2 e7.8 36    23  16  26  15    7.8 64    25    e6.6
5 e7.0 e7.0 e7.5 36    21  16  25  15    7.7 17    23    e6.3
 
6 e6.5 e9.5 e7.0 34    18  16  24  18    7.9 17    18    e45   
7 e6.6 e10    e6.8 33    17  18  24  115    8.6 18    15    e88   
8 e7.6 e8.0 e6.6 31    16  32  57  95    7.6 16    16    e35   
9 e7.3 e7.8 e6.5 32    16  48  42  41    23    13    11    e15   
10 e6.6 e7.4 e6.3 28    15  34  33  30    18    11    9.6 e11   
 
11 e5.8 e6.4 e9.0 25    35  29  29  22    41    10    8.7 e9.0
12 e6.0 e6.8 e11    23    31  25  26  19    24    9.6 8.4 e8.7
13 e12    e7.2 e9.0 20    25  23  27  19    15    8.2 8.0 e15   
14 e12    e6.5 e8.4 17    21  22  28  18    12    6.9 7.8 e25   
15 e8.0 e7.8 e8.0 15    19  21  26  17    12    6.9 e8.0 e22   
 
16 e7.0 e8.2 e7.6 14    20  22  58  19    10    7.9 e8.0 e9.0
17 e6.6 e8.8 e7.4 14    25  36  31  15    9.3 8.3 e8.0 e9.3
18 e6.4 e7.4 e7.2 15    25  89  29  13    8.3 7.7 e7.7 e9.6
19 e6.3 e6.9 e7.0 14    21  63  27  11    18    9.5 e7.0 e8.6
20 e6.2 e6.9 e6.8 14    19  44  31  9.2 10    9.5 e6.9 e9.2
 
21 e6.0 e6.8 e6.6 13    17  34  36  9.5 8.6 7.7 e7.0 e8.5
22 e6.0 e6.0 e7.0 12    16  36  28  9.1 7.9 8.3 e7.3 e8.2
23 e6.2 e5.9 e7.4 12    16  28  25  10    6.6 9.5 e12    e8.5
24 e6.8 e5.9 e8.0 12    15  24  22  20    6.3 9.3 e35    e8.8
25 e8.0 e5.6 e8.8 12    14  22  23  13    5.9 7.9 e70    e8.2
 
26 e15    e6.2 e12    12    13  20  26  11    20    7.9 e16    7.8
27 e37    e8.0 e10    12    14  19  25  9.0 8.6 7.5 e27    9.1
28 e22    e11    e9.5 12    14  22  21  8.9 9.0 7.8 e21    17   
29 e14    e12    e8.6 15    ---  20  23  11    7.7 7.0 e17    24   
30 e10    e11    e8.4 16    ---  19  19  8.9 8.8 6.5 e12    27   
 
31 e8.6 ---    e8.2 15    ---  42  ---  9.0 ---    7.0 e9.8 ---   

TOTAL 284.5 230.6 251.0 579.6 569 883 898 658.6 351.9 356.0 448.5 481.8
MEAN 9.18 7.69 8.10 18.7 20.3 28.5 29.9 21.2 11.7 11.5 14.5 16.1
MAX 37 12 12 36 35 89 58 115 41 64 70 88
MIN 5.8 5.6 6.3 7.2 13 14 19 8.9 5.9 6.5 6.0 6.3
CFSM 1.34 1.13 1.19 2.74 2.98 4.17 4.38 3.11 1.72 1.68 2.12 2.35
IN. 1.55 1.26 1.37 3.16 3.10 4.81 4.89 3.59 1.92 1.94 2.44 2.62

e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1992 - 1998, BY WATER YEAR (WY)
MEAN 10.0 14.6 12.2 16.7 16.2 19.3 21.5 17.1 16.9 12.4 13.1 10.7
MAX 13.7 20.9 17.9 29.5 35.4 28.5 34.4 26.7 30.2 29.6 17.4 16.1
(WY) 1992 1995 1993 1993 1997 1998 1993 1996 1993 1996 1997 1998
MIN 7.35 6.49 7.72 8.92 7.37 10.7 8.35 6.98 7.41 8.44 10.1 6.60
(WY) 1995 1994 1994 1994 1996 1996 1994 1994 1992 1995 1992 1995

SUMMARY STATISTICS FOR 1997 CALENDAR YEAR FOR 1998 WATER YEAR WATER YEARS 1992 - 1998
ANNUAL TOTAL 5487.5       5992.5      
ANNUAL MEAN 15.0       16.4       15.1  
HIGHEST ANNUAL MEAN 18.8   1993
LOWEST ANNUAL MEAN 11.3   1994
HIGHEST DAILY MEAN 240              Feb 21 115              May 7 309      Jul 18 1996
LOWEST DAILY MEAN 5.4   A     B 5.6   A     C 4.1   D
ANNUAL SEVEN-DAY MINIMUM 5.9           Sep 24 6.2           Nov 20 4.6   Nov 5 1993
INSTANTANEOUS PEAK FLOW 179      E     May 7 393      Jul 18 1996
INSTANTANEOUS PEAK STAGE 10.90 F     Sep 7 12.60 Jul 18 1996
INSTANTANEOUS LOW FLOW .39         Jun 30 .39 Jun 30 1998
ANNUAL RUNOFF (CFSM) 2.20     2.40     2.20
ANNUAL RUNOFF (INCHES) 29.89     32.64     29.94
10 PERCENT EXCEEDS 26          31          27     
50 PERCENT EXCEEDS 11          12          11     
90 PERCENT EXCEEDS 6.6       6.8       6.3  
A - Estimated.
B - Sept. 29, but may have been less during period of estimated discharges, Sept. 19 - Dec. 31.
C - Nov. 25, but may have been less during period of estimated discharges, Oct. 2 - Jan. 1.
D - July 30, Nov. 11, 1993.
E - Gage height, 10.40 ft.
F - Backwater from beaver dam.


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data