Station list     Available data
ILLINOIS RIVER BASIN


05572000       SANGAMON RIVER AT MONTICELLO, IL

 

LOCATION.-- Lat 40°01'51", long 88°35'20" (NAD of 1927), in NE1/4SW1/4 sec.12, T.18 N., R.5 E., Piatt County, Hydrologic Unit 07130006, on right downstream side of highway bridge, 0.5 mi west of Monticello, and at mile 162.2.

 

DRAINAGE AREA.-- 550 mi2.

 

PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE

 

DISCHARGE: February 1908 to December 1912, June 1914 to current year. Monthly discharge only for some periods, published in WSP 1308. Published as "near Monticello" 1910-12.

 

STAGE: Water years 1994 to current year.

SURFACE-WATER QUALITY

 

CHEMICAL: Water years 1990-92, 1997-98, and 2001 to current year.

 

MISCELLANEOUS: Water years 2004 and 2005; Contaminants in streambed sediments, July 1996; contaminants in fish tissue, July 1996; streambank sediment size, October 1997; streambed sediment size, October 1997.

BIOLOGICAL

 

ALGAE: Water years 1996-98 and 2002-05.

 

BENTHIC MACROINVERTEBRATES: Water years 1996-98 and 2002-05.

 

FISH: Water years 1997-98 and 2002-05

 

HABITAT: Water years 1996-98 and 2002-05.

 

REVISED RECORDS.-- WSP 525: 1920. WSP 1115: 1946-47. WSP 1208: 1915-16, 1918-20, 1927, 1929, 1939. WSP 1508: 1908(M), 1917, 1928(M). WDR IL-81-2: 1909(P), 1912(P), 1915(P), 1919-32(P), 1935(P), 1937-38(P), 1940-41(P), 1944(P), 1946-47(P). WDR IL-89-2: 1988.

 

GAGE.-- Water-stage recorder, phone telemeter, and crest-stage gage. Datum of gage is 625.89 ft above NGVD of 1929 (625.66 ft NAVD 1988). Prior to Sept. 30, 1964, nonrecording gage at site 0.2 mi downstream at same datum. Oct. 1, 1964, to Oct. 22, 1971, nonrecording gage at present site and datum.

 

EXTREMES FOR PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 19,000 ft3/s, Oct. 4, 1926, gage height, 18.50 ft, from graph based on gage readings, site then in use; maximum gage height, 19.06 ft, Apr. 13, 1994, discharge, 15,900 ft3/s; no flow Aug. 28, Sept. 5, 11, 17, 18, Oct. 30, 31, Nov. 1, 1988.

 

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 820 ft upstream of the gage, and continues upstream for 915 ft.

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
9/14/1998
Chlorophyta
Pediastrum duplex Meyen 12766.124 263833.2719
Chrysophyta
Amphora inariensis Krammer 1476.67831 214092.2325
Amphora veneta Kützing 738.33915 428825.7466
Cocconeis placentula Ehrenberg 738.33915 556736.8023
Craticula citrus (Krasske) Reichardt 738.33915 242985.4503
Cyclostephanos dubius (Frick) Round 16243.46298 4142862.421
Cyclostephanos invisitatus (Hohn et Hellerman) Theriot, Stoermer et Hĺkansson 5168.37408 930037.597
Cyclotella atomus Hustedt 60912.98858 5109169.505
Cyclotella meneghiniana Kützing 23996.0253 20718703.12
Cyclotella pseudostelligera Hustedt 2215.01746 191409.0947
Cyclotella stelligera (Cleve et Grunow) Van Heurck 2215.01746 536873.5619
Cymatopleura solea var. apiculata (Smith) Ralfs 1476.67831 9005091.779
Fallacia monoculata (Hustedt) Mann 738.33915 202214.2591
Fallacia pygmaea (Kützing) Stickle et Mann 1476.67831 1608399.108
Fragilaria capucina Desmazičres 738.33915 72408.55127
Gomphonema angustatum (Kützing) Rabenhorst 738.33915 231740.737
Gomphonema minutum (Agardh) Agardh 2215.01746 737893.9053
Gyrosigma acuminatum (Kützing) Rabenhorst 2953.35662 20735485.49
Gyrosigma attenuatum (Kützing) Rabenhorst 738.33915 7175206.942
Gyrosigma scalproides (Rabenhorst) Cleve 2953.35662 4327484.613
Navicula capitatoradiata Germain 738.33915 425741.8664
Navicula cincta (Ehrenberg) Ralfs 12551.76721 7861742.784
Navicula exilis Kützing 2215.01746 788921.8163
Navicula germainii Wallace 5168.37408 2347239.571
Navicula gregaria Donkin 2215.01746 608796.9508
Navicula minima Grunow 738.33915 29620.6974
Navicula phyllepta Kützing 738.33915 217071.7101
Navicula reichardtiana Lange-Bertalot 738.33915 96378.84991
Navicula rostellata Kützing 2953.35662 2617831.15
Navicula tenelloides Hustedt 738.33915 122122.7795
Navicula trivialis Lange-Bertalot 2215.01746 2415261.927
Nitzschia acicularis (Kützing) Smith 2215.01746 414343.4475
Nitzschia agnita Hustedt 2953.35662 296379.8508
Nitzschia frustulum (Kützing) Grunow 738.33915 36225.51765
Nitzschia gracilis Hantzsch ex Rabenhorst 738.33915 294451.617
Nitzschia intermedia Hantzsch ex Cleve et Grunow 738.33915 678203.7077
Nitzschia microcephala Grunow 738.33915 80173.31709
Nitzschia palea (Kützing) Smith 9967.57978 2978148.473
Nitzschia palea var. debilis (Kützing) Grunow 10336.74895 1760885.134
Nitzschia palea var. tenuirostris Grunow 738.33915 254951.8606
Nitzschia perminuta (Grunow) Peragallo 738.33915 75821.08099
Nitzschia reversa Smith 1476.67831 908337.4335
Nitzschia sociabilis Hustedt 1476.67831 337905.5658
Rhoicosphenia abbreviata (Agardh) Lange-Bertalot 1107.50833 564657.0197
Stephanodiscus hantzschii Grunow 738.33915 240422.3207
Surirella minuta Brébisson 1476.67831 1262015.12
Synedra ulna (Nitzsch) Ehrenberg 738.33915 4378695.824
Thalassiosira pseudonana Hasle et Heimdal 9598.4098 417981.8556
Thalassiosira weissflogii (Grunow) Fryxell et Hasle 13659.27555 12180959.61
Tryblionella apiculata Gregory 738.33915 1802046.791
Tryblionella victoriae Grunow 2215.01746 1916304.303
Cyanophyta
Lyngbya sp. 1? 51862.37875 1296559.469
Oscillatoria sp. 1? 7978.8275 199470.6875
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
9/14/1998
Chlorophyta
Actinastrum hantzschii Lagerheim 1570.131 38979.49126
Ankistrodesmus falcatus (Corda) Ralfs 261.6885 11341.20014
Scenedesmus acuminatus (Lagerheim) Chodat 3140.262 348359.1869
Scenedesmus acuminatus var. bernardii (GM Smith) Deduss 3140.262 266922.27
Scenedesmus ecornis (Ralfs) Chodat 2093.508 27476.79006
Scenedesmus sp. 1? 1046.754 88974.09
Chrysophyta
Amphora inariensis Krammer 250.08654 36258.12427
Aulacoseira alpigena (Grunow) Krammer 500.17308 28253.90199
Cocconeis pediculus Ehrenberg 500.17308 1595811.135
Cocconeis placentula Ehrenberg 2625.90854 1980038.474
Cocconeis placentula var. euglypta (Ehrenberg) Cleve 250.08654 172571.064
Cocconeis placentula var. lineata (Ehrenberg) Van Heurck 750.25962 850114.0136
Cyclostephanos dubius (Frick) Round 1500.51924 382704.4011
Cyclostephanos invisitatus (Hohn et Hellerman) Theriot, Stoermer et Hĺkansson 1750.60578 315017.6763
Cyclostephanos tholiformis Stoermer, Hĺkansson et Theriot 250.08654 37039.9173
Cyclotella atomus Hustedt 31635.94801 2653513.226
Cyclotella meneghiniana Kützing 9628.33193 8313316.404
Cyclotella pseudostelligera Hustedt 250.08654 21611.04329
Cyclotella sp. 1 ? 250.08654 125043.27
Cymatopleura solea (Brébisson) Smith 250.08654 5123589.275
Fallacia tenera (Hustedt) Mann 250.08654 38884.28803
Gomphonema kobayasii Kociolek et Kingston 500.17308 83380.79311
Gomphonema minutum (Agardh) Agardh 2375.822 791463.0948
Hippodonta capitata (Ehrenberg) Lange-Bertalot, Metzeltin et Witkowski 250.08654 148965.1104
Navicula canalis Patrick 500.17308 166353.3249
Navicula capitatoradiata Germain 1000.34616 576820.6131
Navicula cryptotenella Lange-Bertalot ex Krammer et Lange-Bertalot 2750.95194 726830.6626
Navicula exilis Kützing 750.25962 267219.6462
Navicula germainii Wallace 250.08654 113577.89
Navicula gregaria Donkin 500.17308 137472.436
Navicula menisculus Schumann 250.08654 87606.40784
Navicula subminuscula Manguin 500.17308 35985.55245
Navicula symmetrica Patrick 2250.77886 1108340.455
Navicula tenelloides Hustedt 500.17308 82729.63278
Navicula tripunctata (Müller) Bory 500.17308 467130.1158
Nitzschia acicularis (Kützing) Smith 250.08654 46781.44576
Nitzschia agnita Hustedt 250.08654 25097.0746
Nitzschia amphibia Grunow 250.08654 46453.62232
Nitzschia capitellata Hustedt 250.08654 94391.0406
Nitzschia dissipata (Kützing) Grunow 1125.3893 286102.3987
Nitzschia intermedia Hantzsch ex Cleve et Grunow 250.08654 229717.7641
Nitzschia palea var. debilis (Kützing) Grunow 1000.34616 170410.899
Nitzschia wuellerstorffii Lange-Bertalot 250.08654 7650713.81
Rhoicosphenia abbreviata (Agardh) Lange-Bertalot 3376.16816 1721320.734
Simonsenia delognei (Grunow) Lange-Bertalot 1500.51924 84173.06727
Stephanodiscus tenuis Hustedt 250.08654 113881.8502
Thalassiosira pseudonana Hasle et Heimdal 2875.99508 125240.929
Thalassiosira weissflogii (Grunow) Fryxell et Hasle 750.25962 669060.5294
Tryblionella victoriae Grunow 250.08654 216360.3319
Euglenophyta
Euglena sp. 261.6885 215417.671


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Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data