Station list     Available data
ILLINOIS RIVER BASIN


05568000       MACKINAW RIVER NEAR GREEN VALLEY, IL

 

LOCATION.-- Lat 40°27'15", long 89°36'22" (NAD of 1927), in SE1/4SE1/4 sec.12, T.23 N., R.5 W., Tazewell County, Hydrologic Unit 07130004, on right downstream side of bridge on Towerline Road, 2.5 mi east of State Highway 29, 3.9 mi northeast of Green Valley, 5.8 mi south of Pekin, 10.2 mi north of U.S. Highway 136, and at mile 17.3.
 

DRAINAGE AREA.-- 1,073 mi2. Area at site used prior to Oct. 1, 1988, 1,089 mi2.
 

PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE
 

DISCHARGE: March 1921 to September 1956; June 1988 to current year.
 

STAGE: Water years 1994-2002.
 

PARTIAL RECORD: Annual maximum, water years 1957-88.

SURFACE-WATER QUALITY
 

CHEMICAL: October 1997 to September 1998.
 

SEDIMENT: October 1994 to September 1997.
 

MISCELLANEOUS: Contaminants of streambed sediment, July 1997; contaminants of fish tissue, July 1997; streambank sediment size, October 1997; Streambed sediment size, October 1997.

BIOLOGICAL
 

BENTHIC MACROINVERTEBRATES: Water year 1996.
 

FISH: Water year 1997.
 

HABITAT: Water year 1996.
 

GAGE.-- U.S. Army Corps of Engineers satellite telemeter and rain gage, and a crest-stage gage. Datum of gage is 477.10 ft above NGVD of 1929 (levels by U.S. Army Corps of Engineers). Prior to Jan. 17, 1933, chain gage at site 3.5 mi downstream on railroad bridge at datum 2.00 ft higher. Jan. 17, 1933, to May 13, 1940, chain gage, and May 14, 1940 to Sept. 30, 1952, wire-weight gage at site 3.6 mi downstream at datum 2.00 ft higher. Oct. 1, 1952 to Oct. 31, 1956, wire-weight gage, and Nov. 1, 1956 to Sept. 30, 1988, crest-stage gage at site 3.6 mi down stream at present datum.
 

EXTREMES FOR PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 51,000 ft3/s, Dec. 6, 1982, gage height, 16.13 ft (backwater from ice), site then in use; maximum recorded gage height, 28.29 ft, Sept. 16, 1993 (discharge unknown); minimum discharge observed, 17 ft3/s, Oct. 26, 27, 1940.

SUSPENDED-SEDIMENT CONCENTRATIONS: Maximum daily, 6,160 mg/L, May 27, 1996; minimum daily, 4 mg/L, May 11, 1997.

SUSPENDED-SEDIMENT LOADS: Maximum daily 99,800 tons, May 27, 1996; minimum daily, 0.83 tons, Dec. 21, 1996.
 

REMARKS FOR CURRENT YEAR.-- Records good except those for Oct. 5-9, Jan. 31 to Feb. 11 and Feb. 21 to March 14, which are fair, and those for Mar. 15 to Apr. 1 and estimated discharges, which are poor.
DISCHARGE, in CFS, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
 
1 31  318  497  e420  4890  1010  1230  2850  1230  898  270  275 
2 31  410  650  e400  4820  1040  e1160  2980  1150  815  242  239 
3 30  471  637  e380  3670  1300  e1000  2820  1100  718  197  210 
4 29  481  536  e370  2590  1430  928  2420  1080  645  170  188 
5 51  413  476  e380  2080  1550  882  2010  1390  593  154  170 
 
6 58  354  437  e390  1700  1540  837  1790  1290  548  140  154 
7 34  320  398  e370  1450  2190  825  1630  1150  513  130  141 
8 31  297  368  e350  1280  3240  1130  1470  1070  486  121  129 
9 35  277  344  356  1150  4430  2580  2020  994  460  114  121 
10 36  261  322  360  1090  5110  2740  2530  951  437  108  114 
 
11 35  245  303  353  1090  4030  2190  3730  1030  434  100  106 
12 56  235  298  323  1120  2820  1820  10200  1200  411  94  98 
13 62  225  366  305  1070  2330  1550  11300  3400  377  94  93 
14 127  211  411  319  974  2050  1380  13500  3620  349  104  89 
15 214  205  415  291  920  1840  1280  12800  3230  302  107  89 
 
16 433  203  452  286  877  1610  1170  7620  2380  277  116  87 
17 347  197  671  253  818  1420  1070  4510  1840  258  116  82 
18 361  189  1010  238  756  1290  977  4080  1540  245  101  81 
19 345  184  1190  237  786  1180  932  3550  1340  241  121  80 
20 285  178  1070  245  1580  1120  885  3050  1190  226  225  89 
 
21 247  178  873  270  2400  1040  1110  2600  1080  212  320  85 
22 299  173  763  248  2240  937  1420  2310  1000  198  387  82 
23 363  168  776  266  1850  893  1400  2120  946  185  771  85 
24 572  285  735  244  1630  880  1310  2080  896  173  935  81 
25 703  463  669  231  1470  852  1440  1950  859  164  1620  76 
 
26 691  406  617  221  1350  870  1400  1790  1160  169  1550  72 
27 760  353  e600  215  1210  784  1900  1640  1190  222  852  70 
28 596  305  e560  214  1080  766  4720  1540  1550  259  617  68 
29 468  282  e510  212  ---  892  4820  1460  1240  316  472  67 
30 398  331  e470  348  ---  1060  3850  1380  1020  339  380  65 
 
31 351  ---  e440  2910  ---  1210  ---  1310  ---  281  319  --- 

TOTAL 8079 8618 17864 12005 47941 52714 49936 117040 43116 11751 11047 3386
MEAN 260.6 287.3 576.3 387.3 1712 1700 1665 3775 1437 379.1 356.4 112.9
MAX 760 481 1190 2910 4890 5110 4820 13500 3620 898 1620 275
MIN 29 168 298 212 756 766 825 1310 859 164 94 65
CFSM 0.24 0.27 0.54 0.36 1.60 1.58 1.55 3.52 1.34 0.35 0.33 0.11
IN. 0.28 0.30 0.62 0.42 1.66 1.83 1.73 4.06 1.49 0.41 0.38 0.12
e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1921 - 2002, BY WATER YEAR (WY)
MEAN 292.7 406.0 451.2 687.6 994.3 1097 1339 1332 887.1 555.1 278.3 341.4
MAX 3525 3417 2425 3514 3066 3629 4996 5756 2704 3109 2404 6057
(WY) 1927 1927 1928 1993 1927 1993 1944 1943 1999 1951 1924 1993
MIN 19.8 21.8 26.3 29.6 34.1 49.3 68.8 79.9 53.2 37.1 28.6 23.7
(WY) 1941 1941 1941 1940 1931 1931 1931 1934 1934 1988 1988 1940

SUMMARY STATISTICS FOR 2001 CALENDAR YEAR FOR 2002 WATER YEAR WATER YEARS 1921 - 2002
ANNUAL TOTAL 266173      383497     
ANNUAL MEAN 729.2   1051      724.7      
HIGHEST ANNUAL MEAN 2353          1993
LOWEST ANNUAL MEAN 98.4       1940
HIGHEST DAILY MEAN 7380          Feb 9 13500          May 14 23500          Apr 24 1944
LOWEST DAILY MEAN 29          Oct 4 29          Oct 4 17          A
ANNUAL SEVEN-DAY MINIMUM 32          Sep 28 38          Oct 1 18          Oct 21 1940
MAXIMUM PEAK FLOW 14400          May 14 51000      B Dec 6 1982
MAXIMUM PEAK STAGE 27.62     May 14 28.29 C Sep 16 1993
INSTANTANEOUS LOW FLOW 27          Oct 4 17      D A
ANNUAL RUNOFF (CFSM) 0.68 0.98 0.68    
ANNUAL RUNOFF (INCHES) 9.23 13.30 9.18    
10 PERCENT EXCEEDS 1700      2350      1800         
50 PERCENT EXCEEDS 415      536      260         
90 PERCENT EXCEEDS 44      103      44         

A - Oct. 26-27, 1940.

B - Gage height, 16.13 ft., backwater from ice, site then in use.

C - Maximum recorded, discharge unknown.

D - Observed.


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data