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
8/1/2002
Chrysophyta
Achnanthidium minutissimum (Kützing) Czarnecki 152939.8655 6608752.995
Amphora montana Krasske 8996.46107 1934543.354
Amphora pediculus (Kützing) Grunow 8996.46107 891890.2902
Aulacoseira alpigena (Grunow) Krammer 53978.77551 3534390.134
Aulacoseira ambigua (Grunow) Simonsen 44982.31444 15678407.22
Aulacoseira granulata (Ehrenberg) Simonsen 17992.92214 6535162.03
Aulacoseira granulata var. angustissima (Müller) Simonsen 26989.38321 1907767.081
Cocconeis placentula Ehrenberg 8996.46107 6554385.558
Cyclostephanos invisitatus (Hohn et Hellerman) Theriot, Stoermer et Hĺkansson 53978.77551 9328982.595
Cyclotella atomus Hustedt 571275.4007 47524149.83
Cyclotella meneghiniana Kützing 449823.1535 383499298.1
Cyclotella pseudostelligera Hustedt 89964.62889 7774227.235
Cyclotella stelligera (Cleve et Grunow) Van Heurck 8996.46107 2180552.578
Diadesmis contenta (Grunow ex Van Heurck) Mann 134946.9433 5896148.804
Diatoma vulgaris Bory 8996.46107 32222794.77
Geissleria decussis (Hustedt) Lange-Bertalot et Metzeltin 8996.46107 2352944.245
Gomphonema parvulum (Kützing) Kützing 17992.92214 4556876.592
Luticola mutica (Kützing) Mann 22491.15722 13045554.34
Melosira varians Agardh 26989.38321 136195945.2
Navicula antonii Lange-Bertalot 8996.46107 2993511.232
Navicula cryptotenella Lange-Bertalot ex Krammer et Lange-Bertalot 17992.92214 4673869.132
Navicula germainii Wallace 8996.46107 4089208.076
Navicula gregaria Donkin 8996.46107 2439629.311
Navicula minima Grunow 8996.46107 359684.1966
Navicula recens Lange-Bertalot 8996.46107 4542531.311
Navicula tripunctata (Müller) Bory 8996.46107 8402127.287
Navicula viridulacalcis (Hustedt) Lange-Bertalot 17992.92214 24469323.22
Nitzschia acicularis (Kützing) Smith 35985.84429 6628811.98
Nitzschia amphibia Grunow 8996.46107 1671743.645
Nitzschia capitellata Hustedt 17992.92214 6744890.454
Nitzschia dissipata (Kützing) Grunow 17992.92214 4581853.337
Nitzschia heufleriana Grunow 8996.46107 99176541.18
Nitzschia liebethruthii Rabenhorst 17992.92214 1891578.746
Nitzschia palea (Kützing) Smith 134946.9433 39630115.54
Nitzschia palea var. debilis (Kützing) Grunow 49480.54044 7956504.935
Nitzschia sociabilis Hustedt 17992.92214 4117287.036
Planothidium lanceolatum (Brébisson ex Kützing) Lange-Bertalot 8996.46107 2546907.178
Skeletonema potamos (Weber) Hasle 202420.415 9670458.243
Staurosira construens var. venter (Ehrenberg) Hamilton 35985.84429 3077234.627
Stephanodiscus hantzschii Grunow 35985.84429 11465969.3
Stephanodiscus medius Hĺkansson 152939.8655 36846878.62
Stephanodiscus tenuis Hustedt 17992.92214 8193432.837
Surirella minuta Brébisson 8996.46107 7455937.768
Synedra ulna (Nitzsch) Ehrenberg 8996.46107 52615314.56
Thalassiosira pseudonana Hasle et Heimdal 116954.0121 5264279.151
Cyanophyta
Anabaena subcylindrica Borge 1681100.83 53638548.62
Homoeothrix janthina (Bornet et Flahault) Starmach 645179.2375 5074912.438
Phormidium tenue (Agardh ex Gomont) Anagnostidis & Komárek 218088.7564 37405817.24
Unknown Cyanophyte Oscillatoriaceae sp. 1 MSU 254436.8824 23824184.29
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
8/1/2002
Chlorophyta
Spirogyra sp. 12195.20841 984004009.7
Chrysophyta
Achnanthidium minutissimum (Kützing) Czarnecki 2386.80473 103137.2875
Achnanthidium pyrenaicum (Hustedt) Kobayasi 2386.80473 315992.2305
Amphora montana Krasske 4773.60945 1026487.456
Amphora pediculus (Kützing) Grunow 16707.63552 1656359.959
Aulacoseira ambigua (Grunow) Simonsen 2386.80473 831911.3172
Aulacoseira granulata (Ehrenberg) Simonsen 4773.60945 1733810.161
Cocconeis pediculus Ehrenberg 23868.0497 76641820.51
Cocconeis placentula Ehrenberg 16707.63552 12172373.57
Cocconeis placentula var. euglypta (Ehrenberg) Cleve 77571.16701 53265483.1
Cocconeis placentula var. lineata (Ehrenberg) Van Heurck 16707.63552 18712654.83
Craticula molestiformis (Hustedt) Lange-Bertalot 2386.80473 267903.5102
Cyclotella atomus Hustedt 4773.60945 397114.475
Cymbella affinis Kützing 2386.80473 1408609.615
Encyonema minutum (Hilse) Mann 2386.80473 506276.171
Gomphonema angustatum (Kützing) Rabenhorst 2386.80473 753239.9112
Gomphonema kobayasii Kociolek et Kingston 7160.41418 1179550.347
Gomphonema minutum (Agardh) Agardh 26254.85687 8746341.435
Gomphonema olivaceum (Lyngbye) Kützing 16707.63552 6527023.016
Gomphonema parvulum (Kützing) Kützing 11934.02363 3022403.615
Mayamaea atomus var. permitis (Hustedt) Lange-Bertalot 89505.19308 3637746.776
Melosira varians Agardh 14320.8308 72266901.04
Navicula antonii Lange-Bertalot 2386.80473 794193.0388
Navicula capitatoradiata Germain 4773.60945 2735620.834
Navicula cryptotenella Lange-Bertalot ex Krammer et Lange-Bertalot 23868.0497 6200001.304
Navicula erifuga Lange-Bertalot 2386.80473 1216542.827
Navicula gregaria Donkin 2386.80473 647245.4805
Navicula minima Grunow 26254.85687 1049685.762
Navicula reichardtiana Lange-Bertalot 4773.60945 622227.2101
Navicula subminuscula Manguin 31028.46632 2167464.976
Navicula symmetrica Patrick 11934.02363 5902888.027
Navicula tantula Hustedt 2386.80473 120915.5936
Navicula tripunctata (Müller) Bory 14320.8308 13374752.83
Navicula trivialis Lange-Bertalot 4773.60945 5063357.698
Navicula veneta Kützing 1193.40114 193018.557
Nitzschia dissipata (Kützing) Grunow 88311.79194 22488380.45
Nitzschia frustulum (Kützing) Grunow 11934.02363 596016.6615
Nitzschia inconspicua Grunow 38188.88293 1281674.274
Nitzschia palea (Kützing) Smith 7160.41418 2102811.922
Nitzschia palea var. debilis (Kützing) Grunow 4773.60945 767599.6832
Nitzschia supralitorea Lange-Bertalot 2386.80473 211823.5715
Planothidium frequentissimum (Lange-Bertalot) Lange-Bertalot 9547.2189 763779.6176
Planothidium lanceolatum (Brébisson ex Kützing) Lange-Bertalot 2386.80473 675706.8185
Rhoicosphenia abbreviata (Agardh) Lange-Bertalot 44155.89597 22446671.7
Sellaphora seminulum (Grunow) Mann 14320.8308 1053320.47
Skeletonema potamos (Weber) Hasle 4773.60945 228055.0155
Surirella minuta Brébisson 2386.80473 1978096.427
Surirella ovata var. salina Smith 1193.40114 874810.5371
Surirella splendida (Ehrenberg) Kützing 4773.60945 120128829.7
Thalassiosira pseudonana Hasle et Heimdal 7160.41418 322301.2054
Cyanophyta
Phormidium minnesotense (Tilden) Drouet 14634.25009 171401.725
Rhodophyta
Unknown Rhodophyte Florideophycidae (chantransia) 214635.668 435890040.1


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data