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.--
SURFACE-WATER DISCHARGE AND STAGE
 

DISCHARGE: October 1945 to September 1958, October 1968 to current year.

 

STAGE: Water years 1994-2000.

 

PARTIAL RECORD: Annual maximum, water years 1960-68.

SURFACE-WATER QUALITY
 

CHEMICAL: Water years 1977-91.

PRECIPITATION: October 1999 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, phone telemeter, and rain gage. 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.-- Effluent from sewage-treatment plants, 0.5 mi upstream. Collection, computation, and publication of precipitation data do not necessarily conform to standards used by the National Weather Service. Precipitation data could be subject to error for days with freezing and/or thawing of precipitation.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: 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.
PRECIPITATION: Maximum, 2.44 in., May 18, 2000.

REMARKS FOR CURRENT YEAR.-- Records good except for period Feb. 25 to June 16, which are fair. Effluent from sewage-treatment plants averaged about 52.4 ft3/s. The maximum monthly effluent was 75.2 ft3/s in June, and the minimum was 39.0 ft3/s in November.
DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1999 TO SEPTEMBER 2000
DAILY MEAN VALUES
DAYOCTNOVDECJANFEBMARAPRMAYJUNJULAUGSEP
 
1120 46 44 48 52 471 124 600 754 219 177 51 
295 43 43 47 52 451 122 515 897 199 170 49 
392 45 49 48 52 418 116 436 1020 427 142 49 
498 45 47 60 52 370 111 357 1080 417 114 51 
576 44 115 59 53 312 108 276 1200 411 106 50 
 
670 44 113 58 54 247 102 218 1250 393 120 48 
764 44 102 57 53 201 120 188 1180 355 137 49 
857 44 92 56 52 171 154 165 1060 299 133 50 
952 43 83 61 53 156 172 181 927 238 116 49 
1050 44 77 68 56 146 182 240 795 356 96 47 
 
1145 45 72 69 57 138 197 305 723 376 83 54 
1239 44 69 69 57 128 207 354 746 332 76 114 
1338 44 65 70 57 119 204 367 1190 288 73 127 
1435 43 55 67 59 113 191 370 2000 284 68 180 
1533 43 52 67 58 110 177 368 2560 317 65 168 
 
1636 41 68 64 60 119 167 365 2640 332 64 150 
1734 41 80 61 60 116 168 359 2370 315 84 127 
1829 40 75 60 62 108 157 647 1960 267 76 102 
1936 42 72 59 67 108 211 1210 1590 197 77 86 
2026 45 67 58 68 183 623 1340 1320 154 74 84 
 
2135 45 48 57 73 212 1020 1410 1090 132 69 80 
2222 44 60 56 115 235 1130 1560 899 119 64 147 
2338 45 59 55 202 231 1100 1550 748 107 65 330 
2430 46 57 54 360 224 1090 1410 711 100 67 336 
2529 46 51 55 472 220 1100 1230 837 89 65 344 
 
2630 46 52 54 508 199 1090 1040 641 83 59 336 
2744 46 51 50 510 185 1030 932 503 78 56 329 
2843 45 49 51 500 176 926 877 399 80 55 320 
2944 46 49 52 484 163 809 808 325 79 55 304 
3046 43 49 53 --- 147 697 736 263 82 53 279 
 
3147 --- 50 54 --- 134 --- 707 --- 145 53 --- 

TOTAL153313222015179743586311136052112133678727027124490
MEAN49.544.165.058.0150204454681112323587.5150
MAX1204611570510471113015602640427177344
MIN2240434752108102165263785347


STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1977 - 2000, BY WATER YEAR (WY)
MEAN125180240170249443511308224155132136
MAX1011785865514583151013958471123599648756
(WY)198719861983199319991979199319962000199319781986
MIN16.616.512.710.611.961.879.931.323.123.915.018.3
(WY)197719771977197719771977197719771977197719771977

SUMMARY STATISTICSFOR 1999 CALENDAR YEARFOR 2000 WATER YEARWATER YEARS 1977 - 2000
ANNUAL TOTAL79872 100212         
ANNUAL MEAN219 274         239     
HIGHEST ANNUAL MEAN428     1993
LOWEST ANNUAL MEAN26.8  1977
HIGHEST DAILY MEAN1450     Apr 24-262640             Jun 163470     Sep 27 1986
LOWEST DAILY MEAN15     Aug 1022      A    Oct 227.5  Feb 6 1977
ANNUAL SEVEN-DAY MINIMUM27     Aug 530             Oct 207.9  Jan 31 1977
INSTANTANEOUS PEAK FLOW2690             Jun 163530     Sep 27 1986
INSTANTANEOUS PEAK STAGE10.30        Jun 1611.95Sep 27 1986
INSTANTANEOUS LOW FLOW10      A    Oct 22
10 PERCENT EXCEEDS634 849         583     
50 PERCENT EXCEEDS77 101         123     
90 PERCENT EXCEEDS30 44         43     
A - During maintenance on sewage-treatment plant upstream.

Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data