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
DAYOCTNOVDECJANFEBMARAPRMAYJUNJULAUGSEP
 
131 318 497 e420 4890 1010 1230 2850 1230 898 270 275 
231 410 650 e400 4820 1040 e1160 2980 1150 815 242 239 
330 471 637 e380 3670 1300 e1000 2820 1100 718 197 210 
429 481 536 e370 2590 1430 928 2420 1080 645 170 188 
551 413 476 e380 2080 1550 882 2010 1390 593 154 170 
 
658 354 437 e390 1700 1540 837 1790 1290 548 140 154 
734 320 398 e370 1450 2190 825 1630 1150 513 130 141 
831 297 368 e350 1280 3240 1130 1470 1070 486 121 129 
935 277 344 356 1150 4430 2580 2020 994 460 114 121 
1036 261 322 360 1090 5110 2740 2530 951 437 108 114 
 
1135 245 303 353 1090 4030 2190 3730 1030 434 100 106 
1256 235 298 323 1120 2820 1820 10200 1200 411 94 98 
1362 225 366 305 1070 2330 1550 11300 3400 377 94 93 
14127 211 411 319 974 2050 1380 13500 3620 349 104 89 
15214 205 415 291 920 1840 1280 12800 3230 302 107 89 
 
16433 203 452 286 877 1610 1170 7620 2380 277 116 87 
17347 197 671 253 818 1420 1070 4510 1840 258 116 82 
18361 189 1010 238 756 1290 977 4080 1540 245 101 81 
19345 184 1190 237 786 1180 932 3550 1340 241 121 80 
20285 178 1070 245 1580 1120 885 3050 1190 226 225 89 
 
21247 178 873 270 2400 1040 1110 2600 1080 212 320 85 
22299 173 763 248 2240 937 1420 2310 1000 198 387 82 
23363 168 776 266 1850 893 1400 2120 946 185 771 85 
24572 285 735 244 1630 880 1310 2080 896 173 935 81 
25703 463 669 231 1470 852 1440 1950 859 164 1620 76 
 
26691 406 617 221 1350 870 1400 1790 1160 169 1550 72 
27760 353 e600 215 1210 784 1900 1640 1190 222 852 70 
28596 305 e560 214 1080 766 4720 1540 1550 259 617 68 
29468 282 e510 212 --- 892 4820 1460 1240 316 472 67 
30398 331 e470 348 --- 1060 3850 1380 1020 339 380 65 
 
31351 --- e440 2910 --- 1210 --- 1310 --- 281 319 --- 

TOTAL8079861817864120054794152714499361170404311611751110473386
MEAN260.6287.3576.3387.317121700166537751437379.1356.4112.9
MAX760481119029104890511048201350036208981620275
MIN2916829821275676682513108591649465
CFSM0.240.270.540.361.601.581.553.521.340.350.330.11
IN.0.280.300.620.421.661.831.734.061.490.410.380.12

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1921 - 2002, BY WATER YEAR (WY)
MEAN292.7406.0451.2687.6994.3109713391332887.1555.1278.3341.4
MAX352534172425351430663629499657562704310924046057
(WY)192719271928199319271993194419431999195119241993
MIN19.821.826.329.634.149.368.879.953.237.128.623.7
(WY)194119411941194019311931193119341934198819881940

SUMMARY STATISTICSFOR 2001 CALENDAR YEARFOR 2002 WATER YEARWATER YEARS 1921 - 2002
ANNUAL TOTAL266173     383497     
ANNUAL MEAN729.2  1051     724.7      
HIGHEST ANNUAL MEAN2353         1993
LOWEST ANNUAL MEAN98.4      1940
HIGHEST DAILY MEAN7380         Feb 913500         May 1423500         Apr 24 1944
LOWEST DAILY MEAN29         Oct 429         Oct 417         A
ANNUAL SEVEN-DAY MINIMUM32         Sep 2838         Oct 118         Oct 21 1940
MAXIMUM PEAK FLOW14400         May 1451000      BDec 6 1982
MAXIMUM PEAK STAGE27.62    May 1428.29 CSep 16 1993
INSTANTANEOUS LOW FLOW27         Oct 417      DA
ANNUAL RUNOFF (CFSM)0.680.980.68    
ANNUAL RUNOFF (INCHES)9.2313.309.18    
10 PERCENT EXCEEDS1700     2350     1800         
50 PERCENT EXCEEDS415     536     260         
90 PERCENT EXCEEDS44     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