Station list     Available data
ILLINOIS RIVER BASIN


05540500       DU PAGE RIVER AT SHOREWOOD, IL



LOCATION.-- Lat 41°31'20", long 88°11'33", in SE1/4SW1/4 sec.10, T.35 N., R.9 E., Will County, Hydrologic Unit 07120004, on left bank 400 ft upstream from bridge on U.S. Highway 52 at Shorewood, 3.8 mi downstream from Lily Cache Creek and at mile 10.6.

DRAINAGE AREA.-- 324 mi2.

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

DISCHARGE: October 1940 to current year. Published as "at Troy" 1940-65.

 

STAGE: Water years 1994-2000.

SURFACE-WATER QUALITY
 

CHEMICAL: Water years 1978-91.

 

WATER TEMPERATURE: Water years 1964-76.

 

MISCELLANEOUS: June and July 1998.


REVISED RECORDS.-- WSP 1035: 1944. WSP 1055: 1942(M). WDR IL-75-1: Drainage area.

GAGE.-- Water-stage recorder, phone telemeter, and masonry dam. Datum of gage is 564.62 ft above sea level (Illinois Department of Transportation bench mark). Prior to Apr. 11, 1941, nonrecording gage at same site and datum.

REMARKS.-- Streamflow contains effluent from sewage-treatment plants upstream.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 17,300 ft3/s, July 18, 1996, from rating curve extended above 14,000 ft3/s, gage height, 14.03 ft, from floodmark; minimum 0.2 ft3/s, Nov. 17, 1955, result of freezeup.

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
 
1406 143 136 153 e162 347 187 401 1550 414 644 157 
2301 159 137 157 e154 324 182 423 999 343 549 151 
3254 143 150 171 e154 295 184 373 747 986 436 149 
4469 135 183 199 e160 272 192 347 561 1300 324 146 
5442 137 663 209 e158 259 175 318 598 850 318 150 
 
6310 150 1000 186 e156 251 173 303 611 605 473 148 
7256 141 620 187 163 253 181 280 452 470 833 148 
8209 141 440 177 157 241 242 273 378 403 640 143 
9199 142 329 197 150 232 292 729 357 339 458 137 
10199 136 287 247 163 230 253 1110 320 1180 347 144 
 
11190 134 250 293 195 223 244 901 303 1380 288 180 
12180 129 222 258 213 207 225 839 951 845 246 951 
13178 140 210 212 198 204 216 1110 1480 591 212 1130 
14173 137 205 187 193 211 195 816 1490 466 200 796 
15165 140 202 177 190 197 185 535 1480 376 205 626 
 
16164 143 215 172 182 267 194 447 1020 323 192 426 
17170 139 214 166 182 281 696 446 688 296 281 312 
18169 131 205 187 192 227 787 444 522 286 455 255 
19173 136 197 168 207 218 672 930 436 252 323 216 
20158 133 196 133 208 262 2050 706 456 245 255 213 
 
21162 132 159 118 212 356 3610 488 583 235 220 267 
22154 136 168 e145 317 297 3010 450 485 221 195 273 
23153 161 179 e156 599 261 1760 434 393 206 191 539 
24149 191 e174 e160 675 246 1210 362 498 195 187 583 
25147 172 e166 e158 862 238 909 311 1600 205 180 468 
 
26153 150 e160 e150 681 220 708 276 1220 189 172 350 
27152 148 e164 e146 542 219 615 281 794 179 173 286 
28156 141 e168 e144 449 239 534 642 556 171 173 244 
29146 142 e174 e146 388 215 466 624 478 228 167 220 
30139 143 e165 e150 --- 205 422 492 433 363 162 200 
 
31141 --- 153 e158 --- 199 --- 711 --- 573 160 --- 

TOTAL64174305789154678262769620769168022243914715965910008
MEAN207144255176285248692542748475312334
MAX469191100029386235636101110160013808331130
MIN139129136118150197173273303171160137
CFSM.64.44.79.54.88.772.141.672.311.47.961.03
IN..74.49.91.63.95.882.381.932.581.691.111.15

e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1941 - 2000, BY WATER YEAR (WY)
MEAN186219242252314470517415322232190178
MAX14747881257927126719461418110594613371245908
(WY)195519861983199319971979198319741996199619871961
MIN26.227.422.730.828.471.210299.568.645.831.226.8
(WY)195719571964195419641945196319581963195619411946

SUMMARY STATISTICSFOR 1999 CALENDAR YEARFOR 2000 WATER YEARWATER YEARS 1941 - 2000
ANNUAL TOTAL171057     134430         
ANNUAL MEAN469     367         295         
HIGHEST ANNUAL MEAN564         1993
LOWEST ANNUAL MEAN94.2      1963
HIGHEST DAILY MEAN4410         Jan 243610             Apr 2111400         Oct 11 1954
LOWEST DAILY MEAN129         Nov 12118             Jan 2114         Dec 24 1963
ANNUAL SEVEN-DAY MINIMUM136         Nov 16136             Nov 1615         Dec 27 1963
INSTANTANEOUS PEAK FLOW3740             Apr 2117300      AJul 18 1996
INSTANTANEOUS PEAK STAGE6.08        Apr 2114.03 BJul 18 1996
INSTANTANEOUS LOW FLOW64      C    Jan 21.20 CNov 17 1955
ANNUAL RUNOFF (CFSM)1.451.13    .91    
ANNUAL RUNOFF (INCHES)19.6415.43    12.35    
10 PERCENT EXCEEDS979     734         636         
50 PERCENT EXCEEDS301     220         169         
90 PERCENT EXCEEDS146     146         47         
A - From rating curve extended above 14,000 ft3/s.
B - From floodmark.
C - Result of freezeup.

Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data