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 upper Illinois River Basin. A qualitative sample was collected in accordance with NAWQA protocols (Cuffney and others, 1993). The qualitative periphyton sample is a composite of all samples collected from all periphyton microhabitats present within the sampling reach. All samples were processed by the Philadelphia Academy of Natural Sciences. Reach A begins at the red buoy near river mile 239, marking the top of Hitt Island, and continues downstream for 3281 ft, which is 492 ft downstream of the Ottawa navigation light number 238.5.

PERIPHYTON ALGAE, QUALITATIVE
[The algal taxa listed below were identified at the indicated reach. sp., species; Chlorophyta, Green algae; Cyanophyta, Blue-green algae; Chrysophyta, Golden algae, for example diatoms; Cryptophyta, Cryptophytes; Euglenophyta, Euglenoids; Pyrrhophyta, Dinoflagellates; Rhodophyta, Red algae]
Phylum
Taxon
Reach A
9/8/1998
Chlorophyta
Cladophora profunda var. nordstedtiana Brand
Gloeocystis plactonica (West & West) Lemmermann
Oedogonium sp.
Oedogonium sp. 1?
Rhizoclonium sp.
Scenedesmus acuminatus (Lagerheim) Chodat
Scenedesmus bijuga (Turpin) Lagerheim
Scenedesmus quadricauda var. longispina fo. granulatus Uherkovich
Scenedesmus spinosus Chodat
Spirogyra sp.
Unknown Chlorophyte colony
Chrysophyta
Achnanthes rupestoides Hohn
Actinocyclus normanii (Gregory) Hustedt
Amphora coffeaeformis (Agardh) Kützing
Amphora copulata (Kützing) Schoeman et Archibald
Amphora inariensis Krammer
Amphora montana Krasske
Aulacoseira ambigua (Grunow) Simonsen
Aulacoseira granulata (Ehrenberg) Simonsen
Aulacoseira muzzanensis (Meister) Krammer
Bacillaria paradoxa Gmelin
Cocconeis pediculus Ehrenberg
Cyclotella meneghiniana Kützing
Cyclotella pseudostelligera Hustedt
Cymbella tumida (Brébisson ex Kützing) Van Heurck
Gomphonema affine Kützing
Gomphonema parvulum (Kützing) Kützing
Gomphosphenia lingulatiformis (Lange-Bertalot et Reichardt) Lange-Bertalot
Gyrosigma nodiferum (Grunow) Reimer
Hippodonta capitata (Ehrenberg) Lange-Bertalot, Metzeltin et Witkowski
Luticola mutica (Kützing) Mann
Luticola ventricosa (Kützing) Mann
Mayamaea atomus var. permitis (Hustedt) Lange-Bertalot
Melosira varians Agardh
Navicula cryptotenella Lange-Bertalot ex Krammer et Lange-Bertalot
Navicula erifuga Lange-Bertalot
Navicula exilis Kützing
Navicula germainii Wallace
Navicula lanceolata (Agardh) Ehrenberg
Navicula menisculus Schumann
Navicula minima Grunow
Navicula rostellata Kützing
Navicula subminuscula Manguin
Navicula tenelloides Hustedt
Nitzschia acicularis (Kützing) Smith
Nitzschia amphibia Grunow
Nitzschia amplectens Hustedt
Nitzschia capitellata Hustedt
Nitzschia filiformis (Smith) Van Heurck
Nitzschia filiformis var. conferta (Reichardt) Lange-Bertalot
Nitzschia fonticola Grunow
Nitzschia frustulum (Kützing) Grunow
Nitzschia inconspicua Grunow
Nitzschia palea (Kützing) Smith
Nitzschia palea var. debilis (Kützing) Grunow
Nitzschia perminuta (Grunow) Peragallo
Planothidium delicatulum (Kützing) Round et Bukhtiyarova
Planothidium rostratum (Řstrup) Lange-Bertalot
Pleurosira laevis (Ehrenberg) Compčre
Staurosirella lapponica (Grunow) Williams et Round
Stephanodiscus hantzschii Grunow
Synedra goulardi Brébisson
Synedra ulna (Nitzsch) Ehrenberg
Tabularia tabulata (Agardh) Snoeijs
Thalassiosira weissflogii (Grunow) Fryxell et Hasle
Tryblionella hungarica (Grunow) Mann
Tryblionella victoriae Grunow
Cyanophyta
Gloeocapsa rupestris Kützing
Lyngbya sp. 1?
Phormidium boryanum
Phormidium granulatum
Phormidium minnesotense (Tilden) Drouet
Rhabdogloea smithii (Chodat) Komárek
Unknown Cyanophyte colony


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data