Station list     Available data
ILLINOIS RIVER BASIN


05525500       SUGAR CREEK AT MILFORD, IL



LOCATION.-- Lat 40°37'48", long 87°43'26", in NW1/4NE1/4 sec.16, T.25 N., R.12 W., Iroquois County, Hydrologic Unit 07120002, on pier at downstream side of bridge on County Highway 9,200 ft downstream from Mud Creek, 1 mi west of Milford, and at mile 23.9.

DRAINAGE AREA.-- 446 mi2.

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

DISCHARGE: July 1948 to current year.
 

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

CHEMICAL: Water years 1978-91, and 1999-2000.
 

MISCELLANEOUS: Contaminants in streambed sediments, August 1999; contaminants in fish tissue, August 1999.
BIOLOGICAL: Benthic macroinvertebrates, July 1999; Fish, August 1999.

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

GAGE.-- Water-stage recorder and phone telemeter. Datum of gage is 622.00 ft above sea level. Prior to July 23, 1970, nonrecording gage at same site and datum.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 22,900 ft3/s, Feb. 21, 1951, gage height, 20.90 ft, from rating curve extended above 8,200 ft3/s; maximum gage height, 28.16 ft, Apr. 12, 1994; minimum discharge, 2.0 ft3/s, Sept. 1, 2, 7, 1972, Oct. 8, 1994.

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 13    7.4 8.6 17    e10  170  65  118  305  140  96  11   
2 8.7 7.9 8.4 18    e10  140  65  235  256  126  77  10   
3 9.7 8.0 8.7 21    e10  116  68  279  215  183  393  8.0
4 15    8.1 9.9 24    e10  106  66  240  194  385  180  8.7
5 15    8.3 18    23    e10  97  60  203  190  2580  111  9.5
 
6 13    8.3 14    21    e11  84  56  177  172  2990  99  9.8
7 9.8 8.0 13    22    e11  75  58  164  149  1630  79  9.9
8 9.7 8.0 12    18    e11  70  61  159  141  727  61  9.8
9 9.5 8.1 12    21    e12  70  53  171  132  384  56  9.8
10 9.6 8.0 12    20    e13  67  48  548  122  1090  57  11   
 
11 8.1 8.0 12    19    e15  57  48  508  117  1750  46  14   
12 7.1 8.0 13    17    e18  55  46  364  116  798  40  15   
13 6.9 8.0 14    17    e21  53  41  273  120  466  36  19   
14 6.3 8.2 20    13    e19  53  41  212  130  335  34  15   
15 6.4 8.3 30    13    e18  53  44  184  273  260  31  14   
 
16 6.7 8.3 32    15    e17  52  44  171  234  211  24  12   
17 6.7 8.3 32    13    e30  48  89  168  168  175  19  11   
18 6.5 8.1 30    11    85  42  194  167  136  151  19  11   
19 6.2 8.3 e26    13    271  46  173  282  122  138  19  10   
20 6.4 8.3 e20    11    320  109  168  393  123  127  19  9.5
 
21 6.4 8.5 e17    11    218  306  333  311  544  114  19  11   
22 6.3 9.2 e15    9.5 193  241  416  245  694  100  17  11   
23 6.0 13    e14    e9.0 235  179  324  211  418  87  14  12   
24 6.1 16    e13    e8.6 204  154  252  183  334  77  13  15   
25 6.3 15    e12    e8.4 168  143  201  155  506  69  11  15   
 
26 6.4 12    e12    e8.1 138  123  168  135  395  58  11  16   
27 6.5 11    e12    e8.4 184  116  153  207  288  50  11  15   
28 6.5 10    e13    e8.7 276  117  146  618  223  45  12  14   
29 6.6 9.8 e14    e9.0 206  103  132  671  189  50  12  13   
30 e6.8 9.4 e15    e9.4 ---  79  116  498  161  253  13  12   
 
31 e7.1 ---    e16    e9.7 ---  69  ---  375  ---  144  11  ---   

TOTAL 251.3 275.8 498.6 446.8 2744 3193 3729 8625 7167 15693 1640 362.0
MEAN 8.11 9.19 16.1 14.4 94.6 103 124 278 239 506 52.9 12.1
MAX 15 16 32 24 320 306 416 671 694 2990 393 19
MIN 6.0 7.4 8.4 8.1 10 42 41 118 116 45 11 8.0
CFSM .02 .02 .04 .03 .21 .23 .28 .62 .54 1.14 .12 .03
IN. .02 .02 .04 .04 .23 .27 .31 .72 .60 1.31 .14 .03

e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1948 - 2000, BY WATER YEAR (WY)
MEAN 114 224 362 406 518 655 700 563 495 315 101 108
MAX 1290 1964 1361 2240 1918 1915 1908 1824 1722 1599 814 1250
(WY) 1994 1986 1991 1950 1951 1979 1994 1998 1980 1993 1977 1993
MIN 4.55 7.69 5.57 4.06 12.0 64.5 110 56.6 27.2 10.8 6.13 4.27
(WY) 1964 1964 1964 1977 1963 1981 1986 1988 1988 1988 1988 1988

SUMMARY STATISTICS FOR 1999 CALENDAR YEAR FOR 2000 WATER YEAR WATER YEARS 1948 - 2000
ANNUAL TOTAL 100516.6   44625.5  
ANNUAL MEAN 275      122      379         
HIGHEST ANNUAL MEAN 855          1993
LOWEST ANNUAL MEAN 87.2       1954
HIGHEST DAILY MEAN 5470          Apr 17 2990          Jul 6 15200          Apr 13 1994
LOWEST DAILY MEAN 5.0       Sep 27 6.0       Oct 23 2.5       Sep 1 1972
ANNUAL SEVEN-DAY MINIMUM 5.4       Sep 22 6.2       Oct 19 2.9       Sep 11 1988
INSTANTANEOUS PEAK FLOW 3650          Jul 5 22900      A Feb 21 1951
INSTANTANEOUS PEAK STAGE 16.41     Jul 5 28.16     Apr 12 1994
INSTANTANEOUS LOW FLOW 5.8       B 2.0       C
ANNUAL RUNOFF (CFSM) .62 .27 .85    
ANNUAL RUNOFF (INCHES) 8.38 3.72 11.55    
10 PERCENT EXCEEDS 686      277      996         
50 PERCENT EXCEEDS 44      30      125         
90 PERCENT EXCEEDS 7.0   8.3   11         
A - Gage-height, 20.90 ft., from rating curve extended above 8,200 ft3/s.
B - Oct. 15, 23-24.
 C - Sept. 1, 2, 7, 1972; Oct. 8, 1994.


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data