Station list     Available data
ILLINOIS RIVER BASIN


05559600       ILLINOIS RIVER AT CHILLICOTHE, IL

 

LOCATION.-- Lat 40°55'45", long 89°27'42" (NAD of 1927), in NW1/4 sec.22, T.11 N., R.9 W., Peoria County, Hydrologic Unit 07130001, at center of Atchison, Topeka and Sante Fe Railroad bridge, 1 mi north of Chillicothe and at mile 181.9.

 

DRAINAGE AREA.-- Not determined.

 

PERIOD OF RECORD.--

SURFACE-WATER QUALITY

 

SEDIMENT: May 1993 to November 1993, water years 1994 to 2000 (March to December), March 2001 to current year.

 

REMARKS.-- Water discharge used to compute sediment record are from Illinois River at Henry (station 05558300). Suspended-sediment samples were collected by a local observer twice weekly with additional samples colleced during high runoff periods. Samples were not collected (and data are not published) during periods of ice.

 

EXTREMES FOR PERIOD OF RECORD.--

SUSPENDED-SEDIMENT CONCENTRATIONS: Maximum daily, 491 mg/L, July 20, 1996; minimum daily, 16 mg/L, Mar. 7, 1998.

SUSPENDED-SEDIMENT LOADS: Maximum daily, 93,800 tons, July 20, 1996; minimum daily, 177 tons, Oct. 5, 1997.

 

EXTREMES FOR CURRENT YEAR.--

SUSPENDED-SEDIMENT CONCENTRATIONS: Maximum daily, 322 mg/L, Oct. 17; minimum daily, 18 mg/L, May 29.

SUSPENDED-SEDIMENT LOADS: Maximum daily, 31,500 tons, May 14; minimum daily, 496 tons, Sept. 29.


SEDIMENT DISCHARGE, SUSPENDED (TONS/DAY), WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
MEANMEANMEAN
MEANCONCEN-SEDIMENTMEANCONCEN-SEDIMENTMEANCONCEN-SEDIMENT
DISCHARGETRATIONDISCHARGEDISCHARGETRATIONDISCHARGEDISCHARGETRATIONDISCHARGE
DAY(CFS)(MG/L)(TONS/DAY)(CFS)(MG/L)(TONS/DAY)(CFS)(MG/L)(TONS/DAY)
 
OCTOBERNOVEMBERDECEMBER



16560549492700037269014300592290
25310689622650025183015500803340
35040689242370025159016700783510
458606410202420029191015400672790
593006215402190038223012900571980
 
698308121501950035185016000492120
7918010726401870032160014500421660
8655012121301850055276013500411510
9585012620101550086359012100421370
1067308214301600095411011300431310
 
1180107015201450096376011200471420
1281207015401360095349010900511490
13127007525901230092303011800471490
14259008156801300079279012400411360
15333009788101160065203012500351170
 
1636200260254001060055159012800331130
173460032230100980048128013800361360
183210014212300911052127015000612480
19313006252001000060162018200733580
2028700544210814073160019100512630
 
2127200453280918089221018800442240
22244003623708480104237016600381690
23256005840208860114274017500391860
24306008772607180103201017000442020
253340088792012000103335015500482030
 
263630077757012600107363014000431700
27358006361101130095289012200351170
2832600514490118007925001200028908
2933400534760116006119301040027747
303120058490010300461290784028595
 
3127100493600---------695029526
 
TOTAL658740---169385427450---71540428690---55476

 
JANUARYFEBRUARYMARCH



16760------17600------19200472450
26500------24700------18200462260
3e7400------28800------18100442130
4e7100------27500------17400421930
5e6500------25400------19300351850
 
6e6300------24800------19900281500
76820------23000------20300341880
85650------20900------220001328090
97700------18800------3140022819400
108900------20500------4010019821500
 
118840------20000------4130016418200
129210------22500------3880015516300
137070------21100------3410010810000
148710------17600------30100534370
158570------19500------30900453750
 
168010------18500------27300463390
177190------17500------24500493240
187430------14500------23600362280
195570------15800------22300251480
205570------18100------21300261520
 
217200------23800------21700392300
22e6700------26100------17100391800
238700------25900------16900351580
246550------24500------17800351700
255480------26200------17200482190
 
267040------23400------15000602430
275800------21100------14000501870
286700------19300------13900351330
297290---------------14700662620
306970---------------16200672930
 
319110---------------17800552610
 
TOTAL223340------607400------702400---150880

 
APRILMAYJUNE



1194004222102760064480019200241260
2208003922202700041298018300301450
32350014794002460038251017200311440
42500013490102410034221018500643230
52380077494022100331960276001057870
 
62190060355022000331930324001008770
7206005832002150026150028400916990
8223006137201870022112026000835830
92870012094202050047258024000785060
103500010497902380054348021300734230
 
11363005048902460039256022000694100
123470049458039000921040021900694070
1330600564640661001292310019100723700
1427600483580851001383150018000753650
1525900372560780001222570018100763720
 
1623900342190656001051870018500492430
172500034233058200771220016000954100
182090040227052300608460143001154450
192360047301048700486310135001154190
20211005229404520043522012600943200
 
21200005630104100030329012200762480
22204006234303560033316011800762410
23190005729003630024240011300842560
24194006031403490021200011000922720
25195006433903290021190010300922550
 
26199007037802980022175011600963010
271840059295027200221600127001023490
282150049285024900201350166001145150
292720071522023100181150154001174830
302880084657021500191100131001134010
 
31---------20900201120---------
 
TOTAL724700---1276901122800---190040532900---116950

 
JULYAUGUSTSEPTEMBER



1120001073460e600010316606050951550
211600983090e580010416304840981280
310900902660e55008813108070801750
48300821840e68007113006190651080
57970751600e70005510406240701170
 
6703078147079706212305730761180
7679084155064707513204930821100
8512084114060907612604590811010
990706816805470731080483076998
1010500782220496068913431072841
 
1110100872370540063854446074886
128760841990426059675378077785
138070771680556057859317080688
1474407114207410571140404082900
1565807012306610611100332085759
 
1659806911108090841830e300094754
17482068887658010819403600105914
18479068876618010117003250108943
195340751090695081150034601071000
204750851090676074136046801001270
 
21465095119071007414306010921490
2258009314501140096300053701091440
23438087103018800113576063801321910
2443908398319500109572067201132090
25e5000931250199001035520443081970
 
26e45001041270181001195790381059619
27e54001151680159001395960432054627
28e51001281770145001264940354056539
29e48001642130123001063550347060496
30e470019324407920871880445079787
 
31e520011015406870871610---------
 
TOTAL209830---51186278150---70861141040---31826
e Estimated
e Estimated


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data