Station list     Available data
ILLINOIS RIVER BASIN


05572000       SANGAMON RIVER AT MONTICELLO, IL



LOCATION.-- Lat 40°01'51", long 88°35'20", 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 1994-2000.

SURFACE-WATER QUALITY
 

CHEMICAL: Water years 1990-92 and 1998.

 

MISCELLANEOUS: Contaminants in streambed sediments, July 1996; contaminants in fish tissue, July 1996; streambank sediment size, October 1997; streambed sediment size, October 1997.

BIOLOGICAL: Benthic macroinvertebrates, September 1996, September 1997, and September 1998; fish, July 1997 and July 1998.

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, rain gage, and crest-stage gage. Datum of gage is 625.89 ft above sea level. 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. Water temperature and specific conductance continuously recorded at station for the National Water-Quality Assessment Program.

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.--Benthic macroinvertebrate community samples were collected as part of the National Water-Quality Assessment program (NAWQA) in the lower Illinois River Basin. One quantitative (Richest-Targeted Habitat) and one qualitative (Qualitative-Multiple Habitat) sample were collected in accordance with the NAWQA protocols (Cuffney and others, 1993). The quantitative sample was a composite of macroinvertebrates from about 10 submerged tree branches. Branches were cut underwater, gathered in a 425╡m mesh net, and invertebrates were washed or picked from the branches. The average length and average diameter of each branch were measured and used to calculate an approximate surface area. The qualitative sample was collected from many habitat types within the sampling reach to obtain as complete a list of invertebrate taxa as possible. All samples were processed by the USGS National Water-Quality Laboratory. Phylum, Class, Order, Suborder, Family, Subfamily, and Tribe are listed and arranged according to the USGS National Water-Quality Laboratory taxonomic hierarchy. Reach A begins 820 ft upstream of the gage, and continues upstream for 915 ft. The surface area sampled at reach A was 0.44 m2.

BENTHIC MACROINVERTEBRATES
[sp., species; A, Adults; LV, Larvae; P, Pupae; X, present; -, not found]
PHYLUM
Class
Order
(Suborder)
Family Reach A
Subfamily 9/5/97
(Tribe)
Taxon Life stage Quantitative Qualitative
NEMATODA      
              Nematoda   6 -
BRYOZOA      
              Bryozoa   6 -
ANNELIDA      
  Oligochaeta      
        Naididae      
              Naididae   24 -
        Tubificidae      
              Tubificidae   - X
              Branchiura sowerbyi Beddard   - X
ARTHROPODA      
    Acari      
              Hydrachnidia   36 -
  Malacostraca      
    Isopoda      
        Asellidae      
              Caecidotea sp.   - X
    Amphipoda      
        Hyalellidae      
              Hyalella azteca (Saussure)   - X
  Insecta      
    Ephemeroptera      
              Ephemeroptera LV 6 -
      (Furcatergalia)      
        Ephemeridae      
              Hexagenia sp. LV - X
        Caenidae      
              Caenis sp. LV 6 -
        Leptohyphidae      
              Tricorythodes sp. LV 342 X
      (Pisciforma)      
        Baetidae      
              Baetidae LV 108 -
              Baetis sp. LV 60 X
      (Setisura)      
        Heptageniidae      
              Heptageniidae LV 18 -
              Heptagenia flavescens (Walsh) LV 12 X
              Stenacron interpunctatum (Say) LV - X
              Stenonema sp. LV 48 X
              Stenonema exiguum Traver LV - X
              Stenonema terminatum (Walsh) LV 6 -
        Isonychiidae      
              Isonychia sp. LV - X
    Odonata      
      (Zygoptera)      
        Coenagrionidae      
              Coenagrionidae LV 12 -
              Argia sp. A - X
              Argia sp. LV 6 X
      (Anisoptera)      
        Aeshnidae      
              Aeshnidae LV - X
              Boyeria vinosa (Say) LV - X
        Gomphidae      
              Gomphidae LV - X
              Gomphus sp. LV - X
        Macromiidae      
              Macromia sp. LV - X
    Hemiptera      
      (Heteroptera)      
        Corixidae      
              Corixidae LV - X
          Corixinae      
            Corixini      
              Trichocorixa sp. A - X
        Gerridae      
          Trepobatinae      
              Metrobates sp. A - X
        Veliidae      
          Rhagoveliinae      
              Rhagovelia sp. A - X
    Trichoptera      
      (Spicipalpia)      
        Hydroptilidae      
          Hydroptilinae      
              Hydroptila sp. LV 36 -
      (Annulipalpia)      
        Hydropsychidae      
              Hydropsychidae LV 162 X
          Hydropsychinae      
              Cheumatopsyche sp. LV 6 X
              Hydropsyche sp. A - X
              Hydropsyche bidens Ross LV 390 X
              Hydropsyche bidens Ross P 8 -
              Hydropsyche bidens Ross/orris Ross LV 96 -
              Hydropsyche rossi Flint, Voshell, and Parker/simulans Ross LV 18 X
              Hydropsyche rossi Flint, Voshell, and Parker/simulans Ross P 1 -
      (Integripalpia)      
        Leptoceridae      
              Leptoceridae P 6 -
          Leptocerinae      
              Nectopsyche sp. LV - X
    Coleoptera      
      (Adephaga)      
        Gyrinidae      
              Gyrinus sp. A - X
      (Polyphaga)      
        Dryopidae      
              Helichus lithophilus (Germar) A - X
        Elmidae      
              Ancyronyx variegata (Germar) LV 6 -
              Dubiraphia sp. A 6 X
              Dubiraphia sp. LV - X
              Macronychus glabratus Say A 54 X
              Macronychus glabratus Say LV 132 X
              Stenelmis sp. A 24 X
              Stenelmis sp. LV 6 X
              Stenelmis decorata Sanderson A 6 -
              Stenelmis grossa Sanderson A 30 X
    Diptera      
      (Nematocera)      
        Ceratopogonidae      
          Ceratopogoninae      
              Probezzia sp. LV - X
        Chironomidae      
              Chironomidae A 6 -
              Chironomidae LV - X
              Chironomidae P 18 -
          Chironominae      
              Chironominae P - X
            (Chironomini)      
              Chironomini LV 6 -
              Axarus sp. LV - X
              Cryptochironomus sp. LV - X
              Dicrotendipes sp. LV 6 -
              Glyptotendipes sp. LV 6 -
              Harnischia sp. LV 6 X
              Paralauterborniella sp. LV - X
              Polypedilum sp. LV - X
              Stelechomyia sp. LV 6 -
              Stenochironomus sp. LV 6 -
              Tribelos sp. LV - X
              Xestochironomus sp. LV 6 -
            (Tanytarsini)      
              Tanytarsini LV 6 -
              Rheotanytarsus sp. LV 24 X
              Tanytarsus sp. LV - X
          Orthocladiinae      
              Cricotopus sp. LV - X
              Cricotopus/Orthocladius sp. LV - X
              Rheocricotopus sp. LV 18 X
          Tanypodinae      
              Tanypodinae P - X
            (Pentaneurini)      
              Ablabesmyia sp. LV 6 X
              Labrundinia sp. LV - X
              Nilotanypus sp. LV 6 X
              Thienemannimyia group sp. LV 6 -
            (Procladiini)      
              Procladius sp. LV - X
        Culicidae      
              Culicidae LV - X
              Culex sp. LV - X
        Simuliidae      
              Simuliidae LV 6 X
      (Brachycera)      
        Empididae      
              Empididae LV 6 -
              Hemerodromia sp. LV 12 -



Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data