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
8/19/2003
Chlorophyta
Scenedesmus quadricauda (Turpin) Brébisson 200075.5236 6789623.873
Chrysophyta
Achnanthidium minutissimum (Kützing) Czarnecki 2334.1811 93745.81784
Amphora inariensis Krammer 583.52026 94628.85064
Amphora pediculus (Kützing) Grunow 2334.1811 232162.3432
Asterionella formosa Hassal 583.52026 258441.4272
Aulacoseira ambigua (Grunow) Simonsen 1750.66083 627840.9149
Bacillaria paradoxa Gmelin 11087.48525 12971178.86
Cocconeis placentula var. lineata (Ehrenberg) Van Heurck 1167.09055 1237595.775
Cyclostephanos tholiformis Stoermer, Hĺkansson et Theriot 10503.96499 1870258.385
Cyclotella glomerata Bachmann 5251.98249 479125.1664
Cyclotella meneghiniana Kützing 154641.6734 129002672.9
Cyclotella stelligera (Cleve et Grunow) Van Heurck 4084.84193 990079.6016
Diadesmis confervacea Kützing 583.52026 195454.8788
Diatoma vulgaris Bory 583.52026 1744027.128
Fragilaria capucina Desmazičres 583.52026 113394.9596
Fragilaria nanana Lange-Bertalot 1167.09055 121240.8368
Gomphonema minutum (Agardh) Agardh 583.52026 105008.0294
Gomphonema olivaceum (Lyngbye) Kützing 2334.1811 943547.8295
Gomphonema parvulum (Kützing) Kützing 2334.1811 581857.274
Hippodonta capitata (Ehrenberg) Lange-Bertalot, Metzeltin et Witkowski 2334.1811 747106.9019
Melosira varians Agardh 4084.84193 20154922.73
Navicula cryptotenella Lange-Bertalot ex Krammer et Lange-Bertalot 2334.1811 569793.9932
Navicula erifuga Lange-Bertalot 2334.1811 1014040.204
Navicula germainii Wallace 4084.84193 1695912.497
Navicula gregaria Donkin 15172.3772 4018282.25
Navicula lanceolata (Agardh) Ehrenberg 1750.66083 2619632.683
Navicula menisculus Schumann 1167.09055 408836.9169
Navicula minima Grunow 1167.09055 47308.55519
Navicula recens Lange-Bertalot 2334.1811 1174050.25
Navicula reichardtiana Lange-Bertalot 8169.73387 1052976.14
Navicula rostellata Kützing 11671.05553 9117330.09
Navicula subminuscula Manguin 3501.32166 224190.1148
Navicula submuralis Hustedt 2334.1811 87211.79465
Navicula viridulacalcis (Hustedt) Lange-Bertalot 583.52026 4376985.504
Nitzschia acicularis (Kützing) Smith 4668.41221 847627.6625
Nitzschia amphibia Grunow 583.52026 114345.418
Nitzschia angustatula Lange-Bertalot 1167.09055 431511.519
Nitzschia dissipata (Kützing) Grunow 1167.09055 292943.4642
Nitzschia fonticola Grunow 2334.1811 223033.6613
Nitzschia frustulum (Kützing) Grunow 1167.09055 66893.49957
Nitzschia inconspicua Grunow 16339.46774 492570.0524
Nitzschia linearis (Agardh ex Smith) Smith 1167.09055 3186320.196
Nitzschia palea (Kützing) Smith 40265.19912 10692426.73
Nitzschia paleacea Grunow ex Van Heurck 1167.09055 60371.44243
Planothidium dubium (Grunow) Round et Bukhtiyarova 1167.09055 305777.7235
Planothidium frequentissimum (Lange-Bertalot) Lange-Bertalot 583.52026 43387.92656
Planothidium rostratum (Řstrup) Lange-Bertalot 1167.09055 143184.5568
Rhoicosphenia abbreviata (Agardh) Lange-Bertalot 1750.66083 709824.6874
Sellaphora seminulum (Grunow) Mann 2334.1811 8492426.888
Stephanodiscus hantzschii Grunow 2334.1811 751086.5315
Synedra acus Kützing 583.52026 959202.3837
Synedra ulna (Nitzsch) Ehrenberg 1750.66083 9750111.136
Tabellaria flocculosa (Roth) Kützing 583.52026 215833.0884
Tabularia fasciculata (Agardh) Williams et Round 1750.66083 409366.6473
Tryblionella apiculata Gregory 583.52026 220306.4425
Cyanophyta
Homoeothrix janthina (Bornet et Flahault) Starmach 900339.856 2143453.896
Phormidium autumnale (CA Agardh) Gomont 1400528.665 70943838.82
Unknown Cyanophyte coccoid (3-5µ) 50018.88089 703493.7069
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
8/19/2003
Chlorophyta
Scenedesmus acuminatus (Lagerheim) Chodat 21460.85229 1240554.915
Scenedesmus spinosus Chodat 42921.70459 707902.0458
Chrysophyta
Achnanthidium minutissimum (Kützing) Czarnecki 4059.67432 163045.3993
Actinocyclus normanii (Gregory) Hustedt 2029.83716 7476732.241
Amphora cf. strigosa CODY Hustedt 4059.67432 8245198.535
Amphora inariensis Krammer 4059.67432 658352.9962
Amphora pediculus (Kützing) Grunow 40596.77535 4037836.871
Aulacoseira ambigua (Grunow) Simonsen 4059.67432 1455924.295
Bacillaria paradoxa Gmelin 6089.51684 7124087.23
Cocconeis pediculus Ehrenberg 16238.70799 55952564.74
Cocconeis placentula var. lineata (Ehrenberg) Van Heurck 8119.354 8609853.125
Craticula molestiformis (Hustedt) Lange-Bertalot 8119.354 440656.9099
Cyclotella glomerata Bachmann 8119.354 740708.2639
Cyclotella meneghiniana Kützing 138029.0448 115144354.8
Diadesmis confervacea Kützing 16238.70799 5439287.879
Diatoma tenuis Agardh 4059.67432 904479.6414
Diatoma vulgaris Bory 2029.83716 6066783.426
Gomphonema kobayasii Kociolek et Kingston 8119.354 1186631.708
Gomphonema mexicanum Grunow ex Van Heurck 4059.67432 5205769.496
Gomphonema minutum (Agardh) Agardh 12179.03368 2191691.367
Gomphonema olivaceum (Lyngbye) Kützing 4059.67432 1641045.288
Gomphonema parvulum (Kützing) Kützing 24358.06735 6071901.918
Gomphosphenia grovei (Schmid) Lange-Bertalot 20298.38767 14614839.12
Gyrosigma nodiferum (Grunow) Reimer 2029.83716 7913461.342
Karayevia clevei (Grunow) Kingston 4059.67432 624417.8143
Melosira varians Agardh 2029.83716 10015371.9
Navicula cryptotenella Lange-Bertalot ex Krammer et Lange-Bertalot 8119.354 1982005.228
Navicula ingenua Hustedt 16238.70799 703509.686
Navicula menisculus Schumann 4059.67432 1422121.646
Navicula minima Grunow 34507.25851 1398767.685
Navicula recens Lange-Bertalot 123820.1739 62279274.89
Navicula rostellata Kützing 6089.51684 4757079.164
Navicula subminuscula Manguin 79163.7189 5068863.972
Navicula submuralis Hustedt 16238.70799 606725.3606
Navicula veneta Kützing 4059.67432 670164.9525
Nitzschia amphibia Grunow 24358.06735 4773156.243
Nitzschia archibaldii Lange-Bertalot 8119.354 502314.411
Nitzschia dissipata (Kützing) Grunow 8119.354 2037983.849
Nitzschia filiformis (Smith) Van Heurck 20298.38767 15746982.68
Nitzschia filiformis var. conferta (Reichardt) Lange-Bertalot 4059.67432 1616498.608
Nitzschia frustulum (Kützing) Grunow 18268.55051 1047088.658
Nitzschia inconspicua Grunow 389729.0777 11748783.69
Nitzschia palea (Kützing) Smith 40596.77535 10780476.82
Planothidium frequentissimum (Lange-Bertalot) Lange-Bertalot 4059.67432 301859.0129
Pseudostaurosira brevistriata (Grunow) Williams et Round 2029.83716 312339.3118
Rhoicosphenia abbreviata (Agardh) Lange-Bertalot 2029.83716 823019.7994
Sellaphora seminulum (Grunow) Mann 16238.70799 59081122.98
Stephanodiscus hantzschii Grunow 8119.354 2612623.949
Synedra acus Kützing 2029.83716 3336687.274
Synedra goulardi Brébisson 10149.19115 24335730.55
Tabularia fasciculata (Agardh) Williams et Round 8119.354 1898593.185
Thalassiosira bramaputrae (Ehrenberg) Hĺkansson 12179.03368 16650471.95
Cyanophyta
Heteroleibleinia sp. 139495.5399 1385107.459
Homoeothrix janthina (Bornet et Flahault) Starmach 1448607.53 3448723.759
Phormidium autumnale (CA Agardh) Gomont 85843.40917 4348401.526
Unknown Cyanophyte coccoid (3-5µ) 321912.7844 4527562.672


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data