Station list     Available data
ILLINOIS RIVER BASIN


05528000                   DES PLAINES RIVER NEAR GURNEE, IL



LOCATION.--Lat 42°20'39", long 87°56'18", in SE1/4SW1/4 sec.27, T.45 N., R.11 E., Lake County, Hydrologic Unit 07120004, on left bank at upstream side of bridge on State Highway 120, 2.5 mi southwest of Gurnee, and at mile 94.2.

DRAINAGE AREA.--232 mi2.

PERIOD OF RECORD.--October 1945 to September 1958, and annual maximum, water years 1960-68, October 1968 to current year. REVISED RECORDS.--WDR IL-75-1: Drainage area. WDR IL-76-1: 1960(M), 1962(M). WDR IL-77-1: 1971.

GAGE.--Water-stage recorder. Datum of gage is 650.30 ft above sea level (U.S. Army Corps of Engineers bench mark). Prior to May 26, 1946, nonrecording gage. May 27, 1946, to Sept. 30, 1958, water-stage recorder. Dec. 17, 1959, to September 1968, crest-stage gage. October 1968 to September 1998, water stage recorder at site 800 ft upstream at same datum

REMARKS.--Records good. Effluent from sewage-treatment plants, 0.5 mi upstream, averaged about 55.6 ft3/s. The maximum monthly effluent was 83.5 ft3/s in April, and the minimum was 42.9 ft3/s in August. Recording rain gage and gage-height telemeter at station.

EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 3,530 ft3/s, Sept. 27, 1986, gage height, 11.95 ft; no flow Sept. 26 to Oct. 19, 1956, and part of each day Aug. 27-30, Sept. 1, 2, 1970.
DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999
DAILY MEAN VALUES
DAYOCTNOVDECJANFEBMARAPRMAYJUNJULAUGSEP
 
127 107 87 55 1070 181 127 912 133 153 29 24 
228 105 86 50 1060 167 120 766 242 141 30 38 
342 93 85 56 1050 182 115 651 236 127 29 31 
434 89 82 58 1010 194 118 559 248 112 27 30 
568 82 79 56 939 186 123 488 251 100 32 30 
 
659 75 109 57 872 182 131 437 245 88 20 29 
768 70 206 57 802 164 129 380 229 72 30 29 
862 69 226 57 739 155 130 325 188 62 37 28 
956 68 225 58 681 135 287 278 156 57 29 28 
1049 208 216 59 631 127 354 242 150 52 15 28 
 
1143 257 204 58 610 173 374 214 137 49 24 28 
1239 284 185 58 676 168 372 214 125 37 48 30 
1336 274 165 58 670 166 365 199 367 48 33 32 
1434 262 148 58 629 163 358 184 616 39 31 29 
1531 255 134 59 584 168 360 171 716 36 29 28 
 
1630 246 126 60 544 195 574 162 681 36 21 28 
1791 229 120 64 512 310 658 225 648 39 35 27 
18203 212 121 74 481 393 638 285 623 42 23 28 
19184 183 121 78 447 423 575 311 598 39 54 28 
20164 149 116 77 410 419 523 299 568 36 35 30 
 
21148 127 111 79 369 405 498 279 528 35 32 30 
22137 114 89 310 324 393 642 288 478 36 31 28 
23114 105 93 531 268 356 1230 264 423 41 33 27 
24100 98 84 716 223 342 1450 241 361 47 41 28 
2589 92 73 810 189 290 1450 219 284 42 52 28 
 
2679 87 68 811 175 236 1450 196 201 38 44 27 
2772 83 65 866 180 197 1440 176 155 27 38 35 
2874 76 64 968 182 170 1400 160 168 37 36 177 
2975 81 61 1050 --- 157 1260 146 194 34 34 174 
30140 79 57 1100 --- 145 1080 131 170 32 33 155 
 
31109 --- 59 1100 --- 134 --- 126 --- 30 32 --- 

TOTAL248542593665954816327707618331952810119176410171292
MEAN80.214211830858322861130733756.932.843.1
MAX20328422611001070423145091271615354177
MIN27685750175127115126125271524


STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1977 - 1999, BY WATER YEAR (WY)
MEAN128186248175254454513291185152134135
MAX101178586551458315101395847738599648756
(WY)198719861983199319991979199319961996199319781986
MIN16.616.512.710.611.961.879.931.323.123.915.018.3
(WY)197719771977197719771977197719771977197719771977

SUMMARY STATISTICSFOR 1998 CALENDAR YEARFOR 1999 WATER YEARWATER YEARS 1977 - 1999
ANNUAL TOTAL93562 85411         
ANNUAL MEAN256 234         238     
HIGHEST ANNUAL MEAN428     1993
LOWEST ANNUAL MEAN26.8  1977
HIGHEST DAILY MEAN1170     Apr 171450             Apr 24-263470     Sep 27 1986
LOWEST DAILY MEAN26     A15      B    Aug 107.5  Feb 6 1977
ANNUAL SEVEN-DAY MINIMUM27     Jul 2927             Aug 57.9  Jan 31 1977
INSTANTANEOUS PEAK FLOW1470             Apr 243530     Sep 27 1986
INSTANTANEOUS PEAK STAGE8.48        Apr 2411.95Sep 27 1986
INSTANTANEOUS LOW FLOW7.4   B    Aug 10
10 PERCENT EXCEEDS661 634         577     
50 PERCENT EXCEEDS148 129         124     
90 PERCENT EXCEEDS32 30         42     
A - Aug. 1-3, Sept. 29-30.
B - During maintenance on sewage treatment plant upstream.

Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data