Station list     Available data
ILLINOIS RIVER BASIN


05555300       VERMILION RIVER NEAR LEONORE, IL

 

LOCATION.-- Lat 41°12'30", long 88°55'51" (NAD of 1927), in SW1/4SW1/4 sec.30, T.32 N., R.3 E., La Salle County, Hydrologic Unit 07130002, on left downstream side of bridge on County Highway 57 (Red, White and Blue Bridge Road), 3 mi northeast of Leonore, 6.2 mi downstream from Otter Creek, 8 mi northwest of Streator, and at mile 17.2.

 

DRAINAGE AREA.-- 1,251 mi2.

 

PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE

 

DISCHARGE: May 1931 to current year. Prior to October 1971, published as "at Lowell."

 

STAGE: Water years 1994-2002.

SURFACE-WATER QUALITY

 

CHEMICAL: Water years 1978 to 1991.

 

SEDIMENT: June 1980 to September 1981.

 

MISCELLANEOUS: Contaminants in streambed sediments, July 1996; contaminants in fish tissue, July 1996.

 

REVISED RECORDS.-- WSP 745: 1931-32. WSP 1308: 1932(M), 1935-38(M), 1940(M), 1942(M). WDR IL-75-1: Drainage area.

 

GAGE.-- Water-stage recorder, U.S. Army Corps of Engineers satellite telemeter and rain gage, and crest-stage gage. Datum of gage is 520.58 ft above NGVD of 1929. Prior to Aug. 20, 1952, nonrecording gage at site 6.8 mi downstream at datum 19.97 ft lower. Aug. 20, 1952 to Sept. 30, 1971, nonrecording gage at site 6.7 mi downstream at datum 19.97 ft lower.

 

EXTREMES FOR PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 33,500 ft3/s, July 15, 1958, gage height, 15.30 ft, from graph based on gage readings, site and datum then in use; maximum gage height, 27.13 ft, Dec. 4, 1982, present site and datum (discharge 31,800 ft3/s); minimum discharge, 2.6 ft3/s, Aug. 3, 1988.

SUSPENDED-SEDIMENT CONCENTRATIONS: Maximum daily mean, 6,730 mg/L Aug. 15, 1981; minimum daily mean, 1 mg/L Feb. 5, 1981.

SUSPENDED-SEDIMENT LOADS: Maximum daily, 209,000 tons Aug. 15, 1981; minimum daily, 0.24 ton Feb. 5, 1981.

 

REMARKS FOR CURRENT YEAR.-- Records good except those for estimated daily discharges, which are poor.

DISCHARGE, in CFS, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAYOCTNOVDECJANFEBMARAPRMAYJUNJULAUGSEP
 
132 1080 1040 e600 7520 1010 1740 3250 930 1550 359 121 
229 1140 1430 e570 7680 1040 2060 2720 862 1170 234 101 
326 2090 1130 e560 5250 1080 3000 2570 793 933 154 85 
426 2160 923 e560 3680 1500 2660 2240 778 770 175 70 
581 1650 806 e560 2760 1740 2030 1830 881 646 277 58 
 
6131 1300 720 e560 2130 1770 1630 1590 915 544 197 53 
7131 1090 661 e540 1730 2390 1430 1430 791 470 133 47 
8113 957 614 e520 1440 6200 1900 1280 702 409 97 40 
9107 836 560 e540 1350 7520 5640 2050 642 370 74 33 
1096 758 516 595 2320 7110 4680 2620 607 324 60 28 
 
1190 700 485 553 2330 4900 3410 2860 595 325 45 28 
12235 645 465 496 1930 3400 2580 13300 591 313 38 25 
131320 599 499 442 1690 2770 2070 20900 593 263 37 21 
144390 578 571 426 1410 2470 1760 15900 662 227 34 24 
153600 562 633 413 1240 2150 1540 10500 1180 200 28 21 
 
162650 538 705 370 1130 1770 1340 6260 1140 174 29 20 
172210 512 1230 331 997 1490 1180 4170 918 150 27 19 
181930 491 2180 290 878 1330 1060 3410 750 136 32 29 
191540 488 2270 316 923 1190 988 3070 637 130 86 39 
201210 466 1770 351 2610 1120 921 2680 569 116 116 33 
 
21976 454 1370 346 3640 1030 959 2270 513 112 291 33 
221020 442 1140 346 3090 913 1100 1970 475 101 412 35 
233110 431 1050 323 2360 852 1150 1760 453 84 290 33 
244270 446 976 287 1930 852 1100 1870 436 73 331 28 
254430 470 849 270 1640 812 1400 1810 425 73 1230 26 
 
264040 447 689 252 1430 759 1430 1500 538 36 981 25 
273030 429 e700 243 1230 708 1470 1300 3000 28 556 23 
282230 399 e700 239 1050 767 4910 1190 7870 70 356 19 
291740 386 e690 241 --- 1100 e4000 1110 3400 70 254 18 
301420 462 e670 350 --- 1560 e3500 1090 2200 82 191 15 
 
311220 --- e640 2650 --- 2030 --- 1030 --- 259 148 --- 

TOTAL47433230062868215140673686533364638121530348461020872721150
MEAN1530766.9925.2488.424062108215539201162329.3234.638.33
MAX443021602270265076807520564020900787015501230121
MIN263864652398787089211030425282715
CFSM1.220.610.740.391.921.681.723.130.930.260.190.03
IN.1.410.680.850.452.001.941.923.611.040.300.220.03

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1972 - 2002, BY WATER YEAR (WY)
MEAN462.2725.5989.9890.713792056187116611403703.5330.2392.5
MAX318849786201425941597649509851524442296626783997
(WY)198719861983199320011979198219951980199319811993
MIN11.411.411.46.3640.949.120824178.58.836.8911.8
(WY)197219721977197719772000197719921988198819881999

SUMMARY STATISTICSFOR 2001 CALENDAR YEARFOR 2002 WATER YEARWATER YEARS 1972 - 2002
ANNUAL TOTAL423672     486606     
ANNUAL MEAN1161     1333     1069     
HIGHEST ANNUAL MEAN2419     1993
LOWEST ANNUAL MEAN267     2000
HIGHEST DAILY MEAN16600         Jun 620900         May 1330000     Dec 4 1982
LOWEST DAILY MEAN13         Sep 1715         Sep 302.6  Aug 3 1988
ANNUAL SEVEN-DAY MINIMUM18         Sep 1222         Sep 243.0  Jul 30 1988
MAXIMUM PEAK FLOW21700         May 1331800     Dec 4 1982
MAXIMUM PEAK STAGE22.90    May 1327.13Dec 4 1982
INSTANTANEOUS LOW FLOW14         Sep 302.6  Aug 3 1988
ANNUAL RUNOFF (CFSM)0.931.070.85
ANNUAL RUNOFF (INCHES)12.6014.4711.61
10 PERCENT EXCEEDS2620     3000     2650     
50 PERCENT EXCEEDS617     758     404     
90 PERCENT EXCEEDS47     43     26     



Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data