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 (520.40 ft NAVD 1988). 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 2004 TO SEPTEMBER 2005
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
 
1 22  437  4370  667  660  1240  1020  727  224  55  79    5.2
2 30  1110  4770  859  604  1090  1030  655  210  75  58    5.0
3 25  2750  4160  2550  587  946  1010  603  206  144  45    4.4
4 23  2850  3310  7120  595  878  906  559  214  114  37    4.2
5 21  3040  2680  7660  662  837  802  519  217  84  30    4.2
 
6 22  2650  2510  6950  843  792  725  488  202  66  24    4.2
7 18  1990  4260  5440  1200  782  668  477  187  67  22    4.4
8 27  1480  8090  3790  1990  750  612  469  173  83  18    4.4
9 29  1130  7620  2780  2640  690  568  464  173  62  16    4.4
10 22  922  5680  2280  2380  639  533  453  207  46  14    4.6
 
11 22  797  3960  2690  1820  634  514  430  207  40  17    4.4
12 21  701  3070  6110  1530  620  564  406  181  58  23    4.7
13 23  601  2500  16800  1420  577  602  428  171  55  27    4.3
14 25  517  2040  20500  3920  516  588  421  163  49  54    12   
15 65  462  1690  15300  6080  480  642  400  154  51  77    15   
 
16 70  432  1490  10800  4940  456  611  384  143  84  49    13   
17 80  417  1340  6440  3640  448  551  370  131  84  48    10   
18 104  409  1240  3700  2780  452  528  351  123  66  67    7.6
19 109  512  1120  2590  2140  454  511  376  111  47  59    7.1
20 101  731  930  1940  1770  434  560  373  102  37  57    7.5
 
21 134  1040  e820  1570  1600  407  782  359  96  30  40    6.6
22 176  930  e750  1330  1600  390  1280  347  85  24  28    6.1
23 172  777  e690  1070  1650  404  2200  323  76  30  20    6.0
24 152  727  e640  e950  1570  407  2590  302  71  184  16    6.4
25 132  835  e600  e880  1450  460  2120  291  37  147  13    6.1
 
26 129  1510  e560  e800  1340  669  1640  272  19  110  11    6.8
27 154  2910  e520  e780  1240  810  1310  256  50  116  9.1 6.9
28 149  5070  e490  e800  1250  809  1050  246  50  79  7.4 6.9
29 139  5150  e480  848  ---  741  900  242  46  65  6.6 21   
30 138  4190  e510  813  ---  738  807  241  58  143  6.2 11   
 
31 154  ---  e620  734  ---  816  ---  234  ---  109  5.8 ---   

TOTAL 2488 47077 73510 137541 53901 20366 28224 12466 4087 2404 984.1 214.4
MEAN 80.3 1569 2371 4437 1925 657 941 402 136 77.5 31.7 7.15
MAX 176 5150 8090 20500 6080 1240 2590 727 224 184 79 21
MIN 18 409 480 667 587 390 511 234 19 24 5.8 4.2
CFSM 0.06 1.25 1.90 3.55 1.54 0.53 0.75 0.32 0.11 0.06 0.03 0.01
IN. 0.07 1.40 2.19 4.09 1.60 0.61 0.84 0.37 0.12 0.07 0.03 0.01
e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1972 - 2005, BY WATER YEAR (WY)
MEAN 425 732 990 953 1323 1930 1778 1612 1343 685 310 361
MAX 3188 4978 6201 4437 4159 7649 5098 5152 4442 2966 2678 3997
(WY) 1987 1986 1983 2005 2001 1979 1982 1995 1980 1993 1981 1993
MIN 11.4 11.4 11.4 6.36 38.1 49.1 208 241 78.5 8.83 6.89 7.15
(WY) 1972 1972 1977 1977 2003 2000 1977 1992 1988 1988 1988 2005

SUMMARY STATISTICS FOR 2004 CALENDAR YEAR FOR 2005 WATER YEAR WATER YEARS 1972 - 2005
ANNUAL TOTAL 318787        383262.5    
ANNUAL MEAN 871        1050        1034       
HIGHEST ANNUAL MEAN 2419        1993
LOWEST ANNUAL MEAN 267        2000
HIGHEST DAILY MEAN 8610            Jun 1 20500            Jan 14 30000        Dec 4 1982
LOWEST DAILY MEAN 18            Aug 17 4.2         Sep 4 2.6     Aug 3 1988
ANNUAL SEVEN-DAY MINIMUM 23            Oct 1 4.3         Sep 3 3.0     Jul 30 1988
MAXIMUM PEAK FLOW 21500            Jan 14 31800        Dec 4 1982
MAXIMUM PEAK STAGE 22.79       Jan 14 27.13   Dec 4 1982
INSTANTANEOUS LOW FLOW 4.0         A 2.6     Aug 3 1988
ANNUAL RUNOFF (CFSM) 0.696 0.839 0.827
ANNUAL RUNOFF (INCHES) 9.48   11.40   11.23  
10 PERCENT EXCEEDS 2360        2680        2560       
50 PERCENT EXCEEDS 420        437        386       
90 PERCENT EXCEEDS 43        15        25       

A - Several days.


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data