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 to current year.
 

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; sediment concentration and particle size, water years 1996-98.

BIOLOGICAL
 

BENTHIC MACROINVERTEBRATES: Water year 1996 and 1997.
 

FISH: Water year 1997.
 

HABITAT: Water year 1996.
 

GAGE.-- Water-stage recorder, U.S. Army Corps of Engineers satellite telemeter 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, 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 May 31 to June 18, which are fair, and those for estimated daily discharges, which are poor.
Discharge, cubic feet per second, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
 
1 62  82  470  399  e180  e325  2580  701  5520  360  138  104 
2 59  79  426  426  e180  e315  2510  773  5120  339  133  94 
3 60  80  388  405  e175  e290  1900  734  3670  348  128  91 
4 59  88  369  373  e170  e450  1530  692  2500  329  136  87 
5 58  161  371  e340  e170  e900  1270  677  2040  310  125  81 
 
6 56  144  366  e300  e165  e1300  1090  642  1740  326  116  74 
7 56  134  351  e320  e160  e1050  980  595  1520  320  113  68 
8 56  126  336  e340  e170  e900  903  552  1300  319  109  66 
9 57  110  333  345  e165  e780  820  526  1140  287  104  64 
10 68  106  403  343  e160  e720  741  507  1190  350  98  62 
 
11 59  107  460  332  e155  e670  679  500  1600  405  96  61 
12 55  104  472  331  e150  e630  639  490  1840  742  93  61 
13 53  95  467  301  e145  e580  604  534  2100  631  91  62 
14 59  91  438  294  e142  e550  577  812  1650  492  89  62 
15 66  89  416  281  e140  e510  556  1170  1360  662  86  70 
 
16 56  88  414  289  e138  e470  538  1520  1180  591  83  353 
17 55  90  399  308  e132  e440  518  1460  1020  453  82  177 
18 57  532  393  281  e130  e430  495  1250  894  369  85  126 
19 59  608  367  264  e200  e460  481  2760  821  319  93  106 
20 66  1040  329  233  e300  e420  483  2410  732  287  98  108 
 
21 69  1880  322  269  e400  e370  501  2030  684  262  101  102 
22 65  1310  392  300  e520  e340  518  1650  757  246  93  94 
23 62  884  407  312  e460  e345  525  1410  699  251  87  87 
24 62  943  401  250  e400  e360  490  1230  607  209  88  83 
25 78  849  483  e240  e340  e410  758  1640  545  191  107  78 
 
26 96  894  549  e225  e310  475  1190  1750  498  178  156  75 
27 77  739  512  e215  e290  575  1190  2030  465  167  130  73 
28 82  639  507  e205  e295  1050  978  1710  437  161  171  71 
29 81  564  468  e200  e305  1630  863  1390  412  153  152  71 
30 89  517  443  e190  ---  1760  767  1470  384  147  135  70 
 
31 91  ---  419  e185  ---  1860  ---  4910  ---  144  118  --- 

TOTAL 2028 13173 12871 9096 6647 21365 27674 40525 44425 10348 3434 2781
MEAN 65.4 439 415 293 229 689 922 1307 1481 334 111 92.7
MAX 96 1880 549 426 520 1860 2580 4910 5520 742 171 353
MIN 53 79 322 185 130 290 481 490 384 144 82 61
CFSM 0.06 0.41 0.39 0.27 0.21 0.64 0.86 1.22 1.38 0.31 0.10 0.09
IN. 0.07 0.46 0.45 0.32 0.23 0.74 0.96 1.40 1.54 0.36 0.12 0.10
e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1921 - 2004, BY WATER YEAR (WY)
MEAN 284 400 443 668 961 1071 1314 1328 892 568 272 333
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 2003 CALENDAR YEAR FOR 2004 WATER YEAR WATER YEARS 1921 - 2004
ANNUAL TOTAL 156252            194367       
ANNUAL MEAN 428            531        714           
HIGHEST ANNUAL MEAN 2353            1993
LOWEST ANNUAL MEAN 98.4         1940
HIGHEST DAILY MEAN 8520                Jul 11 5520            Jun 1 23500            Apr 24 1944
LOWEST DAILY MEAN 32        A     Mar 6 53            Oct 13 17            B
ANNUAL SEVEN-DAY MINIMUM 35                Mar 1 57            Oct 12 18            Oct 21 1940
MAXIMUM PEAK FLOW 5600            Jun 1 51000        C Dec 6 1982
MAXIMUM PEAK STAGE 22.25       Jun 1 28.29   D Sep 16 1993
INSTANTANEOUS LOW FLOW 51            Oct 13 17        E B
ANNUAL RUNOFF (CFSM) 0.399     0.495 0.665    
ANNUAL RUNOFF (INCHES) 5.42       6.74   9.04      
10 PERCENT EXCEEDS 849            1300        1770           
50 PERCENT EXCEEDS 239            340        259           
90 PERCENT EXCEEDS 51            72        45           

A - Estimated due to backwater from ice.

B - Oct. 26-27, 1940.

C - Gage Height, 16.13 ft., site then in use.

D - Maximum recorded, discharge unknown.

E - Observed.


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data