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 (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 May 11 to July 3, which are fair, and those for estimated daily discharges, which are poor.

Discharge, cubic feet per second, WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003
DAILY MEAN VALUES
DAYOCTNOVDECJANFEBMARAPRMAYJUNJULAUGSEP
 
163 62 56 76 54 e37 180 258 456 558 255 318 
261 60 59 77 e62 e37 169 262 428 468 272 319 
360 60 55 87 e65 e36 163 275 416 383 266 246 
464 61 54 95 e66 e35 305 299 409 339 234 267 
569 68 58 93 e63 e33 561 614 388 306 214 218 
 
659 75 50 94 e61 e32 712 762 378 280 243 181 
756 66 59 93 e57 e34 850 903 401 267 219 155 
855 64 54 92 e51 e45 951 731 386 331 197 137 
954 65 48 89 e46 e100 1130 1130 373 781 177 124 
1055 66 54 86 e43 e150 963 2600 363 7580 162 113 
 
1154 66 52 50 e41 e260 801 4660 363 8520 150 105 
1254 65 56 e53 e39 259 685 4040 354 7100 141 99 
1352 65 55 e58 e39 260 595 2580 1000 4480 135 96 
1452 65 54 e59 e38 310 520 1750 1490 2230 129 94 
1552 65 54 e57 e38 287 469 1500 1240 1600 124 90 
 
1651 64 52 e55 e41 249 438 1610 1100 1200 118 85 
1751 64 53 e54 e43 205 428 1400 847 944 112 85 
1853 62 69 e53 e45 188 405 1150 717 842 105 81 
1959 60 121 e52 e45 185 376 1000 624 712 100 78 
2060 59 93 e50 e44 219 348 910 618 744 95 73 
 
2155 62 86 e49 e45 286 332 807 557 1060 92 73 
2255 63 96 e48 e52 317 319 792 490 794 87 78 
2353 63 97 e47 e58 348 299 745 447 649 82 76 
2455 61 94 e47 e57 317 282 676 414 545 79 69 
2560 61 82 e46 e52 273 292 635 389 479 76 66 
 
2661 59 76 e45 e46 240 293 594 427 422 73 69 
2757 59 73 e49 e41 218 280 542 380 371 66 77 
2854 60 79 e51 e39 207 257 516 330 347 62 70 
2958 62 83 48 --- 222 239 575 362 325 72 64 
3068 60 85 48 --- 208 241 537 499 298 81 64 
 
3163 --- 80 53 --- 199 --- 484 --- 274 76 --- 

TOTAL1773189221371954137157961388335337166464522942943670
MEAN57.263.168.963.049.018746311405551459139122
MAX697512195663481130466014908520272319
MIN5159484538321632583302676264
CFSM0.050.060.060.060.050.170.431.060.521.360.130.11
IN.0.060.070.070.070.050.200.481.230.581.570.150.13

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1921 - 2003, BY WATER YEAR (WY)
MEAN288399444675976107913221329881572276337
MAX352534172425351430663629499657562704310924046057
(WY)192719271928199319271993194419431999195119241993
MIN19.821.826.329.634.149.368.879.953.237.128.623.7
(WY)194119411941194019311931193119341934198819881940

SUMMARY STATISTICSFOR 2002 CALENDAR YEARFOR 2003 WATER YEARWATER YEARS 1921 - 2003
ANNUAL TOTAL354738     133982         
ANNUAL MEAN972     367         718         
HIGHEST ANNUAL MEAN2353         1993
LOWEST ANNUAL MEAN98.4      1940
HIGHEST DAILY MEAN13500         May 148520             Jul 1123500         Apr 24 1944
LOWEST DAILY MEAN48         Dec 932      A    Mar 617         B
ANNUAL SEVEN-DAY MINIMUM52         Oct 1235             Mar 118         Oct 21 1940
MAXIMUM PEAK FLOW9180             Jul 1051000      CDec 6 1982
MAXIMUM PEAK STAGE25.10        Jul 1028.29 DSep 16 1993
INSTANTANEOUS LOW FLOW E17      FB
ANNUAL RUNOFF (CFSM)0.910.34    0.67    
ANNUAL RUNOFF (INCHES)12.304.65    9.09    
10 PERCENT EXCEEDS2350     785         1780         
50 PERCENT EXCEEDS353     94         256         
90 PERCENT EXCEEDS59     50         44         

A - Estimated due to backwater from ice.

B - Oct. 26-27, 1940.

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

D - Maximum recorded, discharge unknown.

E - Minimum unknown, probably occurred during period of ice effect Feb. 2 - Mar. 7.

F - Observed.



Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data