Station list     Available data
ILLINOIS RIVER BASIN


05531300       SALT CREEK AT ELMHURST, IL



LOCATION.-- Lat 41°53'12", long 87°57'34", in SW1/4NW1/4 sec.11, T.39 N., R.11 E., Du Page County, Hydrologic Unit 07120004, on left bank at upstream side of the Illinois Prairie Path Bikeway bridge in Elmhurst, and at mile 20.1.

DRAINAGE AREA.-- 91.5 mi2.

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

DISCHARGE: June 1989 to current year.
 

STAGE: Water years 1994-2000.
 

PARTIAL RECORD: Annual maximum, water years 1961-80.
PRECIPITATION: October 1989 to March 1996 and December 1996 to current year.

REVISED RECORDS.-- WDR IL-77-1: 1961-76(M).

GAGE.-- Water-stage recorder, phone telemeter, rain gage, and crest-stage gage. Datum of gage is 652.65 ft above sea level. Water years 1997 and 1998, datum incorrectly published as 655.00 ft above sea level. Prior to October 1, 1996, at site 990 ft upstream at datum 2.35 ft higher. Prior to June 1, 1989, crest-stage gage at datum 7.84 ft higher.

REMARKS.-- Occasional regulation by sewage treatment plants upstream from station. Since May 28, 1996, some flow temporarily diverted for flood control to Elmhurst Quarry Flood Control Reservoir about 1.0 miles upstream from gage. For precipitation records, snowfall-affected data can result during cold weather when snow fills the rain-gage funnel and then melts as temperatures rise. Snowfall-affected data are subject to appreciable errors.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 2,230 ft3/s, Aug. 27, 1972, gage height, 12.76 ft, datum 660.49 ft above sea level.
PRECIPITATION: Maximum daily total, 3.67 in., September 11, 2000, but may have been greater during periods of missing record.

REMARKS FOR CURRENT YEAR.-- Records good.
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
 
1 199  44  47  50  49  99  47  131  179  64  226  42 
2 115  47  42  45  50  89  51  124  230  83  188  38 
3 145  47  51  58  51  72  51  107  195  499  131  40 
4 275  45  76  78  48  68  54  71  136  491  100  37 
5 212  45  396  70  49  63  48  65  183  273  96  39 
 
6 125  41  446  67  47  62  49  58  229  155  140  37 
7 85  43  255  61  53  58  68  53  163  105  167  37 
8 70  44  147  56  47  54  124  84  114  78  99  39 
9 62  50  104  63  52  58  124  246  89  71  72  36 
10 59  51  90  94  61  54  102  289  73  254  62  40 
 
11 58  60  72  100  72  57  90  246  118  336  52  179 
12 55  66  62  91  68  59  77  302  201  210  46  600 
13 51  51  60  75  68  57  68  219  210  129  43  735 
14 50  44  59  68  69  55  62  143  261  95  46  541 
15 46  46  74  61  63  67  55  107  182  73  42  310 
 
16 51  44  72  59  68  69  88  106  136  63  42  168 
17 53  42  68  56  66  52  292  106  105  59  107  114 
18 53  40  65  56  67  46  278  156  82  51  113  89 
19 47  41  61  53  77  48  296  288  71  47  82  71 
20 51  41  62  56  82  97  776  288  89  45  64  81 
 
21 46  43  60  50  90  110  1060  187  113  45  56  85 
22 44  44  57  49  175  94  1010  137  102  43  49  129 
23 47  65  53  54  304  97  674  112  80  41  47  322 
24 45  63  53  50  394  108  430  92  148  41  44  433 
25 45  53  49  51  471  108  294  75  352  40  42  293 
 
26 45  50  49  46  322  80  226  65  308  39  38  166 
27 45  48  48  46  210  69  199  71  178  39  55  119 
28 40  47  50  47  145  65  170  130  125  39  57  97 
29 42  48  48  45  116  56  152  135  94  48  50  75 
30 41  45  51  49  ---  52  131  132  77  86  47  63 
 
31 45  ---  48  53  ---  52  ---  138  ---  118  42  --- 

TOTAL 2347 1438 2875 1857 3434 2175 7146 4463 4623 3760 2445 5055
MEAN 75.7 47.9 92.7 59.9 118 70.2 238 144 154 121 78.9 168
MAX 275 66 446 100 471 110 1060 302 352 499 226 735
MIN 40 40 42 45 47 46 47 53 71 39 38 36
CFSM .83 .52 1.01 .65 1.29 .77 2.60 1.57 1.68 1.33 .86 1.84
IN. .95 .58 1.17 .76 1.40 .88 2.91 1.82 1.88 1.53 .99 2.06


STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1989 - 2000, BY WATER YEAR (WY)
MEAN 102 143 107 140 158 177 233 192 156 101 135 92.4
MAX 204 251 186 282 350 263 430 431 360 229 338 168
(WY) 1999 1991 1992 1993 1997 1993 1993 1996 1996 1993 1990 2000
MIN 56.8 47.9 46.1 56.2 76.8 70.2 99.4 58.4 53.1 38.1 50.7 48.8
(WY) 1993 2000 1990 1994 1996 2000 1994 1992 1992 1991 1991 1994

SUMMARY STATISTICS FOR 1999 CALENDAR YEAR FOR 2000 WATER YEAR WATER YEARS 1989 - 2000
ANNUAL TOTAL 55850      41618     
ANNUAL MEAN 153      114      144     
HIGHEST ANNUAL MEAN 196      1993
LOWEST ANNUAL MEAN 110      1994
HIGHEST DAILY MEAN 1250          Apr 24 1060          Apr 21 1450      Aug 21 1990
LOWEST DAILY MEAN 35          Sep 11 36          Sep 9 29      Jul 1 1989
ANNUAL SEVEN-DAY MINIMUM 39          Sep 5 38          Sep 3 32      Sep 16 1994
INSTANTANEOUS PEAK FLOW 1250          Apr 20 1580      Aug 6 1989
INSTANTANEOUS PEAK STAGE 11.21     Apr 20 13.56 Aug 6 1989
INSTANTANEOUS LOW FLOW 32          Sep 7 18      Jul 1 1989
ANNUAL RUNOFF (CFSM) 1.67 1.24 1.57
ANNUAL RUNOFF (INCHES) 22.71 16.93 21.33
10 PERCENT EXCEEDS 391      248      301     
50 PERCENT EXCEEDS 74      67      87     
90 PERCENT EXCEEDS 43      44      44     


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data