Station list     Available data
ILLINOIS RIVER BASIN


05584500       LA MOINE RIVER AT COLMAR, IL



LOCATION.-- Lat 40°19'49", long 90°53'46", in SE1/4SW1/4 sec.18, T.4 N., R.4 W., McDonough County, Hydrologic Unit 07130010, on right bank at downstream side of bridge on State Highway 61, 0.2 mi downstream from a railroad bridge, 1 mi southwest of Colmar, 1.8 mi upstream from Troublesome Creek, and at mile 61.8.

DRAINAGE AREA.-- 655 mi2.

PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE
 

DISCHARGE: October 1944 to current year.

 

STAGE: Water years 1994-2001.

SURFACE-WATER QUALITY
 

CHEMICAL: Water years 1975-91 and 1998.

 

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

BIOLOGICAL
 

BENTHIC MACROINVERTEBRATES: Water years 1996-1998.

 

FISH: Water year 1997 and 1998.

 

HABITAT: Water years 1996-1998.


GAGE.-- Water-stage recorder, U.S. Army Corps of Engineers satellite telemeter and rain gage, and crest-stage gage. Datum of gage is 491.53 ft above sea level. Prior to July 13, 1945, nonrecording gage at same site and datum.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 38,900 ft3/s, Mar. 5, 1985, gage height, 26.61 ft; maximum gage height, 27.03 ft, Jan. 3, 1965, ice jam; no flow part of each day Dec. 8, 9, 12, 13, 17, 21, 1955, due to temporary dam upstream; no flow Oct. 19, 1988.

REMARKS FOR CURRENT YEAR.-- Records good except those for estimated daily discharges, which are poor.
DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2000 TO SEPTEMBER 2001
DAILY MEAN VALUES
DAYOCTNOVDECJANFEBMARAPRMAYJUNJULAUGSEP
 
125 36 64 e38 e2000 1040 322 244 886 226 48 131 
221 35 62 e40 e1300 869 301 234 1530 208 45 77 
319 34 55 e41 e800 774 278 221 1090 192 54 60 
422 34 48 e42 e760 718 262 211 1430 221 316 51 
546 33 e44 e44 e640 634 361 227 2220 213 185 46 
 
678 37 e47 e45 e580 544 918 223 4000 174 90 42 
7101 53 e50 e45 e560 496 709 546 4360 154 64 41 
890 76 e52 e45 e660 469 472 702 3110 145 52 44 
968 114 e54 e43 5120 438 394 503 1530 136 45 45 
1055 133 e48 e42 8330 405 396 380 966 126 44 57 
 
1148 160 e44 e41 10300 391 1190 392 766 118 44 79 
1243 152 e50 e41 5550 382 2560 586 636 106 40 57 
1340 123 e50 e42 2170 388 1380 626 544 96 35 45 
1438 110 e50 e43 1500 381 808 645 501 89 31 38 
1538 100 e49 e48 1710 479 709 964 942 83 29 34 
 
1639 89 e48 e52 1410 2180 678 771 736 78 30 31 
1737 80 e46 e62 974 2330 518 1280 512 73 32 30 
1837 77 e43 e58 661 1730 428 2470 438 122 31 38 
1934 70 e42 e54 811 1280 390 1480 393 206 31 177 
2031 e56 e40 e50 685 1010 379 953 344 403 28 140 
 
2129 e52 e39 e46 592 825 371 2000 764 250 26 101 
2230 e58 e37 e43 487 696 505 2240 1240 135 220 93 
2331 e70 e34 e39 468 606 672 1120 846 101 5610 70 
2432 68 e33 e38 1910 529 454 761 548 84 4600 66 
2535 66 e32 e36 4980 458 361 642 431 75 1820 58 
 
2634 69 e32 e35 5700 408 338 604 365 75 484 50 
2734 73 e33 e34 4340 379 309 715 318 70 225 44 
2836 68 e33 e38 1760 366 305 586 285 63 143 40 
2936 70 e34 e140 --- 355 299 472 261 58 99 36 
3035 67 e35 e3400 --- 345 262 403 243 55 79 33 
 
3135 --- e37 e3000 --- 324 --- 526 --- 53 119 --- 

TOTAL127722631365776566758222291732923727322354188146991854
MEAN41.275.444.02502384717578765107413547461.8
MAX1011606434001030023302560247043604035610177
MIN19333234468324262211243532630
CFSM.06.12.07.383.641.09.881.171.64.21.72.09
IN..07.13.08.443.791.26.981.351.83.24.83.11

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1945 - 2001, BY WATER YEAR (WY)
MEAN259263265346544722823748692462165260
MAX35022693268620772384373431934471308141948994024
(WY)198719861983197420011985197319951974199319931961
MIN.672.612.543.335.7030.522.920.821.13.892.821.75
(WY)198919901990195619891956195619561988198819881988

SUMMARY STATISTICSFOR 2000 CALENDAR YEARFOR 2001 WATER YEARWATER YEARS 1945 - 2001
ANNUAL TOTAL85175.3  195689     
ANNUAL MEAN233     536     461         
HIGHEST ANNUAL MEAN1347         1993
LOWEST ANNUAL MEAN23.1      1989
HIGHEST DAILY MEAN5690         Jun 2710300         Feb 1135600         Mar 5 1985
LOWEST DAILY MEAN9.0      Sep 1119         Oct 3.00    Oct 19 1988
ANNUAL SEVEN-DAY MINIMUM9.8      Sep 630         Aug 15.12    Oct 16 1988
MAXIMUM PEAK FLOW11400         Feb 1138900      AMar 5 1985
MAXIMUM PEAK STAGE23.03    Feb 1127.03 BJan 3 1965
INSTANTANEOUS LOW FLOW18         Oct 3
ANNUAL RUNOFF (CFSM).36.82.70    
ANNUAL RUNOFF (INCHES)4.8411.119.57    
10 PERCENT EXCEEDS410     1290     1010         
50 PERCENT EXCEEDS89     123     125         
90 PERCENT EXCEEDS25     35     10         

A - Gage height, 26.61 ft.
B - Ice jam.


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data