Station list     Available data
ILLINOIS RIVER BASIN


05551985       SOMONAUK CREEK AT SOMONAUK RD NR SANDWICH, IL



LOCATION.-- Lat 41°42'18", long 88°39'09", in SE¼ SE¼ SW¼ sec.3, T.37N., R.5E., DeKalb County, Hydrologic Unit 07120007, 144 feet downstream of bridge at Somonauk Road.

DRAINAGE AREA.-- 37.0 mi².

PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE
 

PARTIAL RECORD: Miscellaneous discharge measurements, water year 2000.

SURFACE-WATER QUALITY
 

MISCELLANEOUS: Water year 2000; contaminants in streambed sediments, water year 2000.

BIOLOGICAL
 

BENTHIC MACROINVERTEBRATES: Water year 2000.

 

FISH: Water year 2001.

 

HABITAT: Water year 2000.


REMARKS FOR CURRENT YEAR.--Benthic macroinvertebrate community samples were collected as part of the National Water-Quality Assessment program (NAWQA) in the upper Illinois River Basin. One quantitative sample was collected in accordance with the NAWQA protocols (Cuffney and others, 1993). A Hess sampler was used to collect five subsamples from coarse-grained substrates in flowing water. The sampler had a sampling area of 0.086 m2 and was fitted with a 425 µm mesh net. 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 144 feet upstream of Somonauk Road and continues upstream for 591 feet. The surface area sampled at reach A was 0.43 m2.

BENTHIC MACROINVERTEBRATES
[sp., species; A, Adults; LV, Larvae; P, Pupae; X, present; -, not found or not applicable; dam., damaged; imm., immature; indet., indeterminate; mount, poor mount; ref., reference]

PHYLUM
Class
Order Reach A
(Suborder) 7/25/2000
Family
Subfamily Life stage Quantitative sample Laboratory notes
(Tribe)
Taxon Abundance
(count)
Density
(number/m2)

PLATYHELMINTHES
Turbellaria
Turbellaria - 101 236 -
NEMATODA
Nematoda - 101 236 -
MOLLUSCA
Gastropoda
Basommatophora
Ancylidae
Ancylidae - 20 47 dam.
Bivalvia
Veneroida
Sphaeriidae
Sphaeriidae - 101 236 imm.; dam.
Pisidiinae
Pisidium sp. - 161 377 -
Sphaeriinae
Sphaerium sp. - 2 5 -
ANNELIDA
Oligochaeta
Tubificida
(Tubificina)
Naididae
Naididae - 202 473 -
Tubificidae
Tubificidae - 161 377 -
ARTHROPODA
Arachnida
Acari - 444 1039 -
Malacostraca
Decapoda
(Pleocyemata)
Cambaridae
Cambarinae
Orconectes sp. - 1 2 -
Insecta
Ephemeroptera
(Furcatergalia)
Caenidae
Caenis sp. L 20 47 -
Leptohyphidae
Tricorythodes sp. L 101 236 -
(Pisciforma)
Baetidae
Acentrella parvula (McDunnough) L 20 47 ref.
Baetidae L 101 236 imm.; dam.
Baetis flavistriga McDunnough L 323 756 -
Baetis sp. L 121 283 -
(Setisura)
Heptageniidae
Heptageniidae L 121 283 imm.; dam.
Stenacron sp. L 20 47 -
Stenonema mediopunctatum (McDunnough) L 40 94 -
Odonata
(Zygoptera)
Coenagrionidae
Argia moesta (Hagen) L 1 2 -
Argia sp. L 40 94 -
(Anisoptera)
Aeshnidae
Boyeria sp. L 20 47 -
Megaloptera
Sialidae
Sialis sp. L 1 2 -
Trichoptera
(Spicipalpia)
Hydroptilidae
Hydroptilidae P 81 189 imm.; dam.
Hydroptilinae
Hydroptila sp. L 685 1602 -
(Annulipalpia)
Hydropsychidae
Hydropsychidae L 161 377 imm.; dam.
Hydropsychinae
Ceratopsyche bronta (Ross) L 40 94 -
Ceratopsyche sp. L 81 189 -
Cheumatopsyche sp. L 101 236 -
Hydropsyche depravata group L 222 519 -
Hydropsyche sp. L 323 756 -
Hydropsyche sp. P 1 2 -
Polycentropodidae
Polycentropodinae
Paranyctiophylax sp. L 40 94 -
(Integripalpia)
Helicopsychidae
Helicopsyche borealis (Hagen) L 60 140 -
Helicopsyche borealis (Hagen) P 21 49 -
Coleoptera
(Polyphaga)
Elmidae
Dubiraphia sp. A 81 189 -
Dubiraphia sp. L 40 94 -
Optioservus sp. L 20 47 -
Stenelmis crenata (Say) A 181 423 -
Stenelmis sp. L 544 1273 -
Psephenidae
Ectopria sp. L 40 94 -
Diptera
(Nematocera)
Chironomidae
Chironominae
Chironominae P 40 94 -
(Chironomini)
Cryptochironomus sp. L 60 140 -
Dicrotendipes sp. L 40 94 -
Microtendipes sp. L 40 94 -
Polypedilum sp. L 222 519 -
(Tanytarsini)
Cladotanytarsus sp. L 20 47 -
Paratanytarsus sp. L 262 613 -
Rheotanytarsus sp. L 40 94 -
Tanytarsus sp. L 121 283 -
Orthocladiinae
Cricotopus sp. L 222 519 -
Cricotopus trifascia group L 20 47 -
Cricotopus/Orthocladius sp. L 20 47 -
Nanocladius sp. L 40 94 -
Orthocladiinae L 40 94 dam.; mount
Parakiefferiella sp. L 60 140 -
Rheocricotopus sp. L 20 47 -
Thienemanniella sp. L 20 47 -
Tvetenia sp. L 101 236 -
Tanypodinae
(Pentaneurini)
Thienemannimyia group sp. (Coffman and Ferrington, 1996) L 101 236 -
Simuliidae
Simuliidae L 60 140 imm.
(Brachycera)
Empididae
Hemerodromiinae
Hemerodromia sp. L 40 94 -
Tabanidae
Tabanus sp. L 20 47 -


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data