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. Area at site used prior to October 1971, 1,278 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 to current year.

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 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, cubic feet per second, WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003
DAILY MEAN VALUES
DAYOCTNOVDECJANFEBMARAPRMAYJUNJULAUGSEP
 
113 45 e30 57 e38 e39 154 255 716 213 195   40 
212 39 e32 63 e44 e38 140 323 791 215 167   31 
312 37 e33 e125 e45 e38 133 384 593 215 144   93 
415 39 e30 e110 e50 e41 166 376 482 188 135   184 
519 48 e29 e85 e56 e42 225 785 423 170 140   140 
 
613 56 e28 e80 e62 e40 537 1800 368 157 160   93 
722 50 e27 e77 e66 e42 729 1870 338 149 169   68 
822 50 e26 e72 e56 e55 929 1310 323 352 129   54 
926 47 e26 e66 e48 e75 1460 1430 308 890 103   41 
1025 48 e25 e62 e40 92 1130 2910 296 2030 89   35 
 
1122 46 e24 e64 e34 136 835 3500 277 3420 83   30 
1223 53 e23 e46 e26 283 653 3280 264 2980 73   26 
1323 52 e21 e51 e21 267 541 2170 260 2080 64   24 
1424 56 e22 e58 e27 282 443 1760 537 1410 56   25 
1523 61 e23 e54 e30 345 378 2020 1860 955 53   28 
 
1621 53 e25 e48 e29 302 338 2630 1410 708 51   27 
1724 47 e28 e46 e24 252 324 2080 e950 720 47   22 
1829 46 e34 e44 e23 218 310 1490 e700 671 41   18 
1930 49 e50 e43 e23 217 276 1150 597 4490 34   17 
2027 47 63 e40 e24 228 253 990 681 4560 30   16 
 
2124 45 59 e37 e26 216 238 900 697 2780 28   15 
2224 43 77 e35 e29 299 230 741 562 1660 24   18 
2326 42 e74 e32 e32 458 217 643 467 1160 20   17 
2428 42 e67 e31 e38 380 202 576 e400 839 18   16 
2532 40 e58 e30 e45 281 185 521 343 632 15   15 
 
2633 e41 e56 e30 e45 e230 188 473 310 476 13   17 
2728 e40 e55 e31 e44 200 190 424 278 389 11   29 
2827 e38 e52 e30 e42 198 179 387 262 323 9.317 
2929 e36 e50 e30 --- 194 164 374 242 278 9.614 
3037 e33 e47 e32 --- 177 174 402 226 247 11   16 
 
3144 --- e52 e35 --- 168 --- 511 --- 216 9.5--- 

TOTAL75713691246164410675833119213846515961355732131.41186
MEAN24.445.640.253.038.11883971241532114868.839.5
MAX446177125664581460350018604560195184
MIN1233213021381332552261499.314
CFSM0.020.040.030.040.030.150.320.990.430.920.050.03
IN.0.020.040.040.050.030.170.351.140.471.060.060.04

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1972 - 2003, BY WATER YEAR (WY)
MEAN44970496086513381997182516481375717322381
MAX318849786201425941597649509851524442296626783997
(WY)198719861983199320011979198219951980199319811993
MIN11.411.411.46.3638.149.120824178.58.836.8911.8
(WY)197219721977197720032000197719921988198819881999

SUMMARY STATISTICSFOR 2002 CALENDAR YEARFOR 2003 WATER YEARWATER YEARS 1972 - 2003
ANNUAL TOTAL390857     117153.4  
ANNUAL MEAN1071     321     1046     
HIGHEST ANNUAL MEAN2419     1993
LOWEST ANNUAL MEAN267     2000
HIGHEST DAILY MEAN20900         May 134560         Jul 2030000     Dec 4 1982
LOWEST DAILY MEAN12         Oct 2-39.3      Aug 282.6  Aug 3 1988
ANNUAL SEVEN-DAY MINIMUM14         Sep 3011         Aug 253.0  Jul 30 1988
MAXIMUM PEAK FLOW5290         Jul 1931800     Dec 4 1982
MAXIMUM PEAK STAGE11.44    Jul 1927.13Dec 4 1982
INSTANTANEOUS LOW FLOW7.1      Aug 312.6  Aug 3 1988
ANNUAL RUNOFF (CFSM)0.860.260.84
ANNUAL RUNOFF (INCHES)11.623.4811.36
10 PERCENT EXCEEDS2650     809     2600     
50 PERCENT EXCEEDS351     58     386     
90 PERCENT EXCEEDS26     23     25     



Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data