Station list     Available data
ILLINOIS RIVER BASIN


05540130       WEST BRANCH DU PAGE RIVER NEAR NAPERVILLE, IL



LOCATION.-- Lat 41°43'13", long 88°07'55", in SW1/4NE1/4 sec.6, T.37 N., R.10 E., Will County, Hydrologic Unit 07120004, on downstream side of bridge on Washington Street, 3.5 mi southeast of Naperville, and at mile 29.3.

DRAINAGE AREA.-- 123 mi2.

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

DISCHARGE: October 1988 to current year.

 

STAGE: Water years 1994-2000.

PRECIPITATION: May 1989 to current year.

GAGE.-- Water-stage recorder, phone telemeter, rain gage, and crest-stage gage. Datum of gage is 630.00 ft above sea level. Water years 1989 to 1995 datum incorrectly published as 625.28 ft above sea level.

REMARKS.-- 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.--
PRECIPITATION: Maximum, 5.34 in., August 4, 1998, but may have been greater during periods of missing record.

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
DAYOCTNOVDECJANFEBMARAPRMAYJUNJULAUGSEP
 
1158 44 34 e43 e38 104 53 123 257 97 257 35 
2103 41 33 e43 e38 93 53 112 230 86 183 32 
3118 39 56 e50 e39 79 54 100 179 575 117 29 
4239 38 84 e70 e40 74 51 86 134 474 85 30 
5154 38 539 e58 e40 72 48 86 155 250 94 31 
 
6104 37 463 e50 e44 65 47 76 152 170 189 32 
778 36 248 e48 e45 62 60 74 111 126 298 32 
862 38 160 e54 e44 62 115 83 90 102 184 29 
956 39 112 e59 e49 60 104 275 76 92 122 29 
1053 38 88 e80 e59 56 86 302 69 334 90 38 
 
1152 38 72 e84 e62 52 81 243 137 245 69 117 
1254 37 65 e66 59 52 76 336 373 164 59 671 
1348 37 56 e54 56 52 72 242 314 122 55 566 
1445 36 56 e50 51 50 67 155 351 97 55 317 
1545 38 59 e46 46 65 65 123 257 75 57 228 
 
1651 35 65 e46 44 105 104 121 178 64 51 145 
1747 36 61 e45 45 80 465 126 137 59 133 107 
1845 37 54 e44 51 67 349 150 109 55 132 83 
1945 38 53 e42 56 69 373 190 90 53 87 67 
2041 35 52 e40 59 104 1350 151 129 47 69 81 
 
2140 34 e48 e38 60 120 1880 119 167 46 58 103 
2240 36 e50 e43 146 97 1180 147 118 44 52 147 
2339 58 e48 e41 302 83 576 110 91 40 48 279 
2439 52 e47 e40 340 74 393 92 177 40 45 230 
2540 45 e46 e36 388 72 287 76 506 40 42 166 
 
2643 33 e46 e37 259 67 227 66 316 40 41 116 
2740 35 e46 e37 194 73 198 87 191 40 39 91 
2839 34 e46 e37 149 73 172 120 138 44 41 78 
2938 33 e45 e39 119 65 145 129 132 45 37 68 
3036 35 e46 e40 --- 61 128 105 109 116 36 57 
 
3139 --- e44 e41 --- 56 --- 209 --- 173 37 --- 

TOTAL203111502922150129222264885944145473395528624034
MEAN65.538.394.348.410173.029514218212892.3134
MAX23958539843881201880336506575298671
MIN363333363850476669403629
CFSM.53.31.77.39.82.592.401.161.481.04.751.09
IN..61.35.88.45.88.682.681.331.661.20.871.22

e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1989 - 2000, BY WATER YEAR (WY)
MEAN92.214711315417118525122017812611797.5
MAX245290187315518316449449368456174229
(WY)199919961991199919971990199319901996199619981989
MIN30.538.333.548.454.873.069.562.632.739.535.740.9
(WY)199020001990200019892000198919891992199119911991

SUMMARY STATISTICSFOR 1999 CALENDAR YEARFOR 2000 WATER YEARWATER YEARS 1989 - 2000
ANNUAL TOTAL64210     42387     
ANNUAL MEAN176     116     154     
HIGHEST ANNUAL MEAN200     1993
LOWEST ANNUAL MEAN110     1989
HIGHEST DAILY MEAN1770         Jan 241880         Apr 214960     Jul 18 1996
LOWEST DAILY MEAN32         Sep 929         Sep 3,8,916     Oct 13 1989
ANNUAL SEVEN-DAY MINIMUM34         Nov 2630         Sep 319     Jun 3 1994
INSTANTANEOUS PEAK FLOW2040         Apr 216620     Jul 18 1996
INSTANTANEOUS PEAK STAGE9.41    Apr 2114.31Jul 18 1996
INSTANTANEOUS LOW FLOW5.2      Jul 205.2  Jul 20 0000
ANNUAL RUNOFF (CFSM)1.43.941.25
ANNUAL RUNOFF (INCHES)19.4212.8217.02
10 PERCENT EXCEEDS409     246     314     
50 PERCENT EXCEEDS97     65     90     
90 PERCENT EXCEEDS38     38     39     


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data