Station list     Available data
ILLINOIS RIVER BASIN


05553500       ILLINOIS RIVER AT OTTAWA, IL

 

LOCATION.-- Lat 41°20'17", long 88°51'10" (NAD of 1927), in SW1/4SW1/4 sec.11, T.33 N., R.3 E., LaSalle County, Hydrologic Unit 07130001, downstream of the railroad bridge, 0.25 miles, and downstream 0.5 miles of the Route 23 bridge in Ottawa and the confluence with the Fox River.

 

DRAINAGE AREA.-- 10,949 mi2.

 

PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE

 

DISCHARGE: March 11, 1903 to December 31, 1903.

 

PARTIAL RECORD: Miscellaneous discharge measurements, water years 1903-1904.

SURFACE-WATER QUALITY

 

CHEMICAL: Water years 1997 to 2004.

 

MISCELLANEOUS: Contaminants in streambed sediments, August 1998; contaminants in fish tissue, August, 1998.

BIOLOGICAL

 

ALGAE: Water years 1997-99 and 2002-04.

 

BENTHIC MACROINVERTEBRATES: Water years 1998-99, 2002-04.

 

FISH: Water years 1998-99, 2002-04.

 

HABITAT: Water years 1998-2000, 2003.

 

GAGE.-- Prior to November 1, 1903, vertical staff at west end of first pier from the north abutment of the railroad bridge at same datum. November 1, 1903 to February 21, 1904, chain gage read twice daily. Datum of gage is 579.48 ft above NGVD of 1929 (579.30 ft NAVD 1988).

 

REMARKS.-- Discharges for surface-water quality data for water years 1997 to current are computed by adding discharges of Illinois River at Marseilles (05543500) and Fox River at Dayton, IL (05552500).

 

EXTREMES FOR PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 46,900 ft3/s, Apr. 15, 1903, gage height, -119.08 ft (460.40 ft above NGVD of 1929); minimum discharge, 6,740 ft3/s, Sept. 8, 1903.

 

REMARKS FOR CURRENT YEAR.--Algae community samples were collected as part of the National Water-Quality Assessment program (NAWQA) in the lower Illinois River Basin. A quantitative sample was collected in accordance with NAWQA protocols (Cuffney and others, 1993). Reach A begins at the red buoy near river mile 239, marking the top of Hitt Island, and continues downstream for 3281 feet, which is 492 feet downstream of the Ottawa navigation light number 238.5.

PERIPHYTON ALGAE, QUANTITATIVE, DTH (Depositional-targeted habitat)
[sp., species; Chlorophyta, Green algae; Cyanophyta, Blue-green algae; Chrysophyta, Golden algae, for example diatoms; Cryptophyta, Cryptophytes; Euglenophyta, Euglenoids; Pyrrhophyta, Dinoflagellates; Rhodophyta, Red algae]
Quantitative sample
Phylum
TaxonCells
(number/cm2)		Biovolume
(biovolume/cm2)
Reach A
7/15/2002
Chlorophyta
Scenedesmus acutiformis Schröder 20984.19244 1054780.557
Scenedesmus spinosus Chodat 31476.28865 519134.3015
Chrysophyta
Achnanthidium minutissimum (Kützing) Czarnecki 10422.37624 450365.9655
Amphora pediculus (Kützing) Grunow 10422.37624 1033252.531
Aulacoseira ambigua (Grunow) Simonsen 5211.18812 1816338.943
Aulacoseira granulata var. angustissima (Müller) Simonsen 5211.18812 368357.182
Aulacoseira muzzanensis (Meister) Krammer 5211.18812 17542229.92
Craticula molestiformis (Hustedt) Lange-Bertalot 5211.18812 584922.417
Cyclotella atomus Hustedt 422106.4423 35114849.65
Cyclotella meneghiniana Kützing 171969.2866 146613397.3
Cyclotella pseudostelligera Hustedt 15633.5696 1350963.419
Hippodonta capitata (Ehrenberg) Lange-Bertalot, Metzeltin et Witkowski 5211.18812 3104066.347
Melosira varians Agardh 5211.18812 26297106.74
Navicula germainii Wallace 5211.18812 2368668.343
Navicula minima Grunow 5211.18812 208346.5929
Navicula rostellata Kützing 5211.18812 4510412.297
Navicula subminuscula Manguin 5211.18812 364022.753
Nitzschia acicularis (Kützing) Smith 5211.18812 959932.6324
Nitzschia filiformis (Smith) Van Heurck 33872.73589 26959076.48
Nitzschia filiformis var. conferta (Reichardt) Lange-Bertalot 10422.37624 4150026.67
Nitzschia frustulum (Kützing) Grunow 15633.5696 780781.7591
Nitzschia inconspicua Grunow 5211.18812 174895.028
Nitzschia palea (Kützing) Smith 15633.5696 4591138.965
Nitzschia palea var. debilis (Kützing) Grunow 67745.47703 10893519.3
Nitzschia perspicua Cholnoky 359572.1533 4212028204
Nitzschia sociabilis Hustedt 5211.18812 1192466.522
Planothidium hauckianum (Grunow) Round et Bukhtiyarova 5211.18812 7780303.862
Planothidium lanceolatum (Brébisson ex Kützing) Lange-Bertalot 5211.18812 1475292.598
Skeletonema potamos (Weber) Hasle 336121.7937 16057924.64
Stephanodiscus tenuis Hustedt 10422.37624 4746035.082
Thalassiosira pseudonana Hasle et Heimdal 10422.37624 469127.112
Cyanophyta
Phormidium aerugineo-caeruleum 41968.38487 2713352.401
Phormidium minnesotense (Tilden) Drouet 73444.67352 860211.0568
PERIPHYTON ALGAE, QUANTITATIVE, RTH (Richest-targeted habitat, cobbles or snags)
[sp., species; Chlorophyta, Green algae; Cyanophyta, Blue-green algae; Chrysophyta, Golden algae, for example diatoms; Cryptophyta, Cryptophytes; Euglenophyta, Euglenoids; Pyrrhophyta, Dinoflagellates; Rhodophyta, Red algae]
Quantitative sample
Phylum
TaxonCells
(number/cm2)		Biovolume
(biovolume/cm2)
Reach A
7/15/2002
Chlorophyta
Cladophora glomerata (Linnaeus) Kützing 6649.87048 6827620158
Coelastrum cambricum Archer 132997.4096 11304779.82
Scenedesmus bijuga (Turpin) Lagerheim 13299.74096 536328.5452
Scenedesmus bijuga var. alternans (Reinsch) Hansgirg 20847.71898 1772056.114
Scenedesmus dimorphus (Turpin) Kützing 20847.71898 15685901.48
Scenedesmus quadricauda (Turpin) Brébisson 33249.3524 1157470.001
Scenedesmus spinosus Chodat 72967.01644 1203435.435
Stigeoclonium lubricum (Dillwyn) Kützing 73148.57528 30660181.32
Chrysophyta
Achnanthidium exiguum (Grunow) Czarnecki 3191.93783 343824.6894
Amphora pediculus (Kützing) Grunow 39899.22288 3955525.311
Aulacoseira ambigua (Grunow) Simonsen 15959.68915 5562686.331
Aulacoseira granulata (Ehrenberg) Simonsen 3191.93783 1159335.362
Aulacoseira muzzanensis (Meister) Krammer 3191.93783 10744902.32
Bacillaria paradoxa Gmelin 3191.93783 3734227.877
Caloneis bacillum (Grunow) Cleve 8773.28825 3770652.096
Cocconeis placentula var. euglypta (Ehrenberg) Cleve 3191.93783 2191795.188
Craticula molestiformis (Hustedt) Lange-Bertalot 12767.75132 1433098.133
Cyclotella atomus Hustedt 70222.63227 5841789.955
Cyclotella meneghiniana Kützing 70222.63227 59868706.13
Diadesmis confervacea Kützing 4787.90675 2420326.108
Diatoma vulgaris Bory 4386.64152 15711716.89
Geissleria decussis (Hustedt) Lange-Bertalot et Metzeltin 4386.64152 1147287.009
Gomphonema kobayasii Kociolek et Kingston 3191.93783 525814.7477
Gomphonema minutum (Agardh) Agardh 3191.93783 1063337.662
Gomphonema parvulum (Kützing) Kützing 15959.68915 4041941.233
Mayamaea atomus var. permitis (Hustedt) Lange-Bertalot 6383.87566 259458.9465
Melosira varians Agardh 9575.81349 48322222.07
Navicula antonii Lange-Bertalot 3191.93783 1062095.603
Navicula canalis Patrick 4386.64152 351280.4981
Navicula capitatoradiata Germain 3191.93783 1829209.473
Navicula cryptotenella Lange-Bertalot ex Krammer et Lange-Bertalot 13159.93498 3418444.953
Navicula erifuga Lange-Bertalot 3191.93783 1626915.277
Navicula germainii Wallace 3191.93783 1450848.044
Navicula gregaria Donkin 13159.93498 3568665.817
Navicula minima Grunow 65434.72552 2616121.661
Navicula phyllepta Kützing 4386.64152 1289672.606
Navicula recens Lange-Bertalot 175556.5807 88642773.89
Navicula rostellata Kützing 4386.64152 3796746.805
Navicula subminuscula Manguin 130869.4511 9141765.135
Navicula veneta Kützing 21933.22323 3547440.122
Nitzschia agnita Hustedt 8773.28825 842713.4443
Nitzschia amphibia Grunow 9575.81349 1779400.28
Nitzschia dissipata (Kützing) Grunow 26319.86996 6702290.102
Nitzschia filiformis (Smith) Van Heurck 6383.87566 5080882.535
Nitzschia filiformis var. conferta (Reichardt) Lange-Bertalot 38303.25396 15251754.67
Nitzschia fonticola Grunow 8773.28825 853303.2305
Nitzschia frustulum (Kützing) Grunow 19739.90247 985862.8684
Nitzschia inconspicua Grunow 148425.1091 4981361.835
Nitzschia palea (Kützing) Smith 24126.5492 7085287.808
Nitzschia palea var. debilis (Kützing) Grunow 6383.87566 1026531.597
Nitzschia solita Hustedt 4386.64152 1170214.433
Nitzschia tropica Hustedt 21933.22323 4671496.085
Rhoicosphenia abbreviata (Agardh) Lange-Bertalot 12767.75132 6490492.74
Sellaphora seminulum (Grunow) Mann 6383.87566 469544.4703
Skeletonema potamos (Weber) Hasle 38303.25396 1829904.449
Stephanodiscus hantzschii Grunow 6383.87566 2034058.775
Stephanodiscus medius Hĺkansson 3191.93783 769014.3144
Stephanodiscus tenuis Hustedt 9575.81349 4360535.997
Synedra ulna (Nitzsch) Ehrenberg 6383.87566 37335750.51
Tabularia fasciculata (Agardh) Williams et Round 3191.93783 746388.3722
Thalassiosira pseudonana Hasle et Heimdal 6383.87566 287348.0177
Thalassiosira weissflogii (Grunow) Fryxell et Hasle 3191.93783 2988095.927
Tryblionella victoriae Grunow 13159.93498 11385210.54
Cyanophyta
Homoeothrix janthina (Bornet et Flahault) Starmach 93098.18672 732300.6046


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data