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
 

ALGAE: Water years 1996-97.
 

BENTHIC MACROINVERTEBRATES: Water year 1996-97.
 

FISH: Water year 1997.
 

HABITAT: Water year 1996, 2003.
 

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) (476.76 ft NAVD 1988). 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, 28.44 ft, Jan. 16, 2005, discharge, 16,400 ft3/s; 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 fair 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 70  1070  3680  e620  1240  1210  502  730  278  85  53  41 
2 72  2060  3910  700  1180  1090  474  670  267  78  49  40 
3 73  2840  3480  1390  1150  972  475  626  262  71  47  40 
4 68  3770  2920  3880  1130  919  494  590  264  69  51  39 
5 67  3400  2480  5190  1160  896  478  559  266  69  57  37 
 
6 67  3030  2340  5480  1260  849  471  536  268  65  62  37 
7 67  2420  3650  4720  1540  818  448  526  251  64  57  37 
8 77  1970  5540  3770  1970  793  423  513  237  64  55  39 
9 92  1670  5400  2680  2380  720  403  524  254  62  50  38 
10 76  1470  4790  2290  2410  677  391  515  235  59  50  39 
 
11 71  1280  3370  2330  2150  682  385  489  225  58  48  41 
12 72  1100  2660  3370  1950  677  398  456  302  81  47  43 
13 88  962  2280  9890  1900  636  408  435  267  99  51  44 
14 87  856  1960  10000  3280  590  392  428  265  85  80  47 
15 94  778  1720  13000  3980  551  372  412  232  76  68  47 
 
16 110  734  1580  14800  3670  532  367  395  219  76  59  52 
17 117  722  1440  7570  2940  529  353  380  199  78  55  55 
18 150  695  1320  3660  2480  526  346  372  184  67  52  52 
19 192  710  1200  2910  2150  527  344  392  174  62  52  59 
20 159  686  1070  2560  1940  509  339  432  163  59  54  81 
 
21 164  673  1060  2280  1840  466  365  399  157  55  58  63 
22 196  638  940  2070  1730  451  624  375  153  55  49  55 
23 187  608  817  1840  1640  476  1460  352  151  51  46  52 
24 171  636  590  1680  1570  486  1770  337  145  48  44  54 
25 161  791  e540  e1600  1490  486  1590  334  138  44  45  68 
 
26 190  1070  e510  e1550  1390  489  1360  321  127  51  45  50 
27 308  2350  e480  e1500  1280  505  1150  310  117  81  45  53 
28 259  4470  e475  1510  1260  508  976  302  106  60  43  62 
29 304  4370  e490  1440  ---  498  850  296  99  54  43  85 
30 467  3930  e520  1380  ---  497  786  295  100  55  42  63 
 
31 501  ---  e560  1310  ---  510  ---  287  ---  54  41  --- 

TOTAL 4777 51759 63772 118970 54060 20075 19194 13588 6105 2035 1598 1513
MEAN 154 1725 2057 3838 1931 648 640 438 204 65.6 51.5 50.4
MAX 501 4470 5540 14800 3980 1210 1770 730 302 99 80 85
MIN 67 608 475 620 1130 451 339 287 99 44 41 37
CFSM 0.14 1.61 1.92 3.58 1.80 0.60 0.60 0.41 0.19 0.06 0.05 0.05
IN. 0.17 1.79 2.21 4.12 1.87 0.70 0.67 0.47 0.21 0.07 0.06 0.05
e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1921 - 2005, BY WATER YEAR (WY)
MEAN 281 425 474 729 979 1063 1301 1311 879 559 268 327
MAX 3525 3417 2425 3838 3066 3629 4996 5756 2704 3109 2404 6057
(WY) 1927 1927 1928 2005 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 2004 CALENDAR YEAR FOR 2005 WATER YEAR WATER YEARS 1921 - 2005
ANNUAL TOTAL 286603        357446       
ANNUAL MEAN 783        979        719           
HIGHEST ANNUAL MEAN 2353            1993
LOWEST ANNUAL MEAN 98.4         1940
HIGHEST DAILY MEAN 5540            Dec 8 14800            Jan 16 23500            Apr 24 1944
LOWEST DAILY MEAN 61            Sep 11 37            Sep 5-7 17            A
ANNUAL SEVEN-DAY MINIMUM 63            Sep 8 38            Sep 4 18            Oct 21 1940
MAXIMUM PEAK FLOW 16400            Jan 16 51000        B Dec 6 1982
MAXIMUM PEAK STAGE 28.44       Jan 16 28.44   C Jan 16 2005
INSTANTANEOUS LOW FLOW 36            D 17        E Oct 26 1940
ANNUAL RUNOFF (CFSM) 0.730 0.913 0.670    
ANNUAL RUNOFF (INCHES) 9.94   12.39   9.10      
10 PERCENT EXCEEDS 1990        2510        1790           
50 PERCENT EXCEEDS 423        432        260           
90 PERCENT EXCEEDS 87        51        45           

A - Oct. 26-27, 1940.

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

C - Discharge, 16,400 ft3/s.

D - Sept. 5,6,7,9.

E - Observed.


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data