Station list     Available data
CAHOKIA CREEK BASIN


05587900       CAHOKIA CREEK AT EDWARDSVILLE, IL



LOCATION.-- Lat 38°49'28", long 89°58'29", in NW1/4SE1/4 sec.3, T.4 N., R.8 W., Madison County, Hydrologic Unit 07140101, on right bank at upstream side of bridge on State Highway 143 in Edwardsville, and at mile 9.4.

DRAINAGE AREA.-- 212 mi2.

PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE
 

DISCHARGE: August 1969 to current year.
 

STAGE: Water years 1994-2000.
SURFACE-WATER QUALITY
 

CHEMICAL: Water years 1978-91.

REVISED RECORDS.-- WDR IL-75-1: Drainage area.

GAGE.-- Water-stage recorder, phone telemeter, and crest-stage gage. Datum of gage is 425.62 ft above sea level. Apr. 8, 1983, to July 2, 1985, nonrecording gage at same site and datum.

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 4.2   e1.0 e2.6 e1.8 e3.5 9.0 7.9 8.5 31    89  209  37 
2 3.7   e4.0 e2.3 e1.7 4.3 8.2 7.8 7.5 22    78  132  30 
3 4.0   e3.5 e3.0 e6.0 5.0 9.1 7.3 7.0 16    79  91  27 
4 4.1   e3.0 e15    e10    5.0 9.8 6.9 6.6 14    65  66  24 
5 3.5   e2.8 e8.0 14    e4.5 11    6.2 7.3 17    51  57  21 
 
6 2.8   e2.6 4.6 10    e4.0 10    6.7 6.5 15    56  75  19 
7 2.4   e2.4 7.9 7.7 e3.7 9.5 9.8 122    12    57  164  18 
8 13      e2.3 6.4 7.7 e3.5 8.5 12    62    10    35  1060  17 
9 8.5   e2.3 7.0 7.4 e3.3 7.6 11    26    9.0 27  389  16 
10 5.0   e2.2 13    6.8 e5.3 6.7 10    17    8.7 24  174  33 
 
11 3.0   e2.1 9.1 6.3 7.3 7.2 8.7 12    15    384  102  35 
12 1.9   e2.1 11    5.6 6.9 7.7 7.5 9.6 32    266  72  78 
13 1.6   e2.0 8.0 5.5 7.6 8.6 8.5 7.8 24    308  58  76 
14 1.9   e2.0 7.0 4.6 6.2 9.9 9.3 6.6 46    76  46  51 
15 2.6   e1.9 5.9 4.9 4.8 9.9 8.6 7.1 35    43  37  33 
 
16 3.6   e1.9 5.5 4.6 4.6 9.4 8.3 7.1 16    30  30  22 
17 3.8   e1.8 4.7 5.8 4.9 8.5 27    5.8 35    28  50  19 
18 e3.0   e1.7 4.1 5.7 159    8.3 23    5.6 31    504  141  18 
19 e2.5   e1.7 3.3 5.6 57    10    12    18    18    2350  53  16 
20 e2.1   e1.7 3.1 5.7 30    23    10    17    30    285  37  31 
 
21 e1.8   e1.7 2.6 4.7 16    38    9.7 8.6 984    141  30  81 
22 e1.6   e1.6 2.3 5.0 12    32    11    7.7 227    85  26  70 
23 e1.5   e2.2 2.3 5.0 9.2 19    11    40    559    59  23  15 
24 e1.3   e3.5 2.3 3.8 8.4 14    14    15    6630    45  976  41 
25 e1.2   e6.0 2.1 e3.2 7.7 11    26    13    4440    35  923  813 
 
26 e1.1   e5.0 e2.0 e3.0 9.8 10    25    46    2050    28  283  756 
27 e1.0   e4.5 e1.9 e2.7 11    12    18    692    982    24  172  271 
28 e.90 e3.7 e1.9 e2.5 11    12    14    307    263    1610  110  175 
29 e.90 e3.2 e1.8 e2.4 9.6 13    12    129    163    3970  74  136 
30 e.80 e2.9 e1.8 e2.6 ---    11    10    69    113    1530  58  116 
 
31 e.80 ---    e1.8 e3.0 ---    8.9 ---    47    ---    321  46  --- 

TOTAL 90.10 79.3 154.3 165.3 425.1 372.8 359.2 1741.3 16847.7 12683 5764 3095
MEAN 2.91 2.64 4.98 5.33 14.7 12.0 12.0 56.2 562 409 186 103
MAX 13 6.0 15 14 159 38 27 692 6630 3970 1060 813
MIN .80 1.0 1.8 1.7 3.3 6.7 6.2 5.6 8.7 24 23 15
CFSM .01 .01 .02 .03 .07 .06 .06 .26 2.65 1.93 .88 .49
IN. .02 .01 .03 .03 .07 .07 .06 .31 2.96 2.23 1.01 .54

e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1969 - 2000, BY WATER YEAR (WY)
MEAN 39.8 99.6 172 162 219 295 328 199 144 57.2 31.5 43.6
MAX 366 649 915 834 782 1120 1251 1006 562 409 186 486
(WY) 1970 1986 1983 1974 1985 1978 1994 1990 1998 2000 2000 1993
MIN .82 1.05 1.08 1.21 14.7 12.0 12.0 15.0 2.04 1.18 1.05 .15
(WY) 1996 1981 1990 1977 2000 2000 2000 1988 1988 1988 1991 1988

SUMMARY STATISTICS FOR 1999 CALENDAR YEAR FOR 2000 WATER YEAR WATER YEARS 1969 - 2000
ANNUAL TOTAL 41423.30     41777.10    
ANNUAL MEAN 113          114          149     
HIGHEST ANNUAL MEAN 297      1985
LOWEST ANNUAL MEAN 32.4   1980
HIGHEST DAILY MEAN 5410              Feb 7 6630              Jun 24 7680      Apr 12 1979
LOWEST DAILY MEAN .80 A     Oct 30,31 .80 A     Oct 30,31 .00 B
ANNUAL SEVEN-DAY MINIMUM .93         Oct 26 .93         Oct 26 .00 Aug 29 1987
INSTANTANEOUS PEAK FLOW 6900              Jun 24 8200      Apr 12 1979
INSTANTANEOUS PEAK STAGE 21.06         Jun 24 24.74 Apr 12 1979
ANNUAL RUNOFF (CFSM) .54     .54     .70
ANNUAL RUNOFF (INCHES) 7.27     7.33     9.52
10 PERCENT EXCEEDS 198          141          271     
50 PERCENT EXCEEDS 16          9.8       25     
90 PERCENT EXCEEDS 2.2       2.1       2.0  
A - Estimated, but may have been less during periods of estimated discharges in Oct. and Nov.
B - Many days in 1987-88, 1991.


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data