05525500 DATA: Benthic Macroinvertebrates, 1999

Station list Available data
ILLINOIS RIVER BASIN

05525500 SUGAR CREEK AT MILFORD, IL

LOCATION.-- Lat 40°37'48", long 87°43'26", in NW1/4NE1/4 sec.16, T.25 N., R.12 W., Iroquois County, Hydrologic Unit 07120002, on pier at downstream side of bridge on County Highway 9,200 ft downstream from Mud Creek, 1 mi west of Milford, and at mile 23.9.

DRAINAGE AREA.-- 446 mi².

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

DISCHARGE: July 1948 to current year.

STAGE: Water years 1994-2000.

SURFACE-WATER QUALITY

CHEMICAL: Water years 1978-91, and 1999-2000.

MISCELLANEOUS: Contaminants in streambed sediments, August 1999; contaminants in fish tissue, August 1999.

BIOLOGICAL: Benthic macroinvertebrates, July 1999; Fish, August 1999.

REVISED RECORDS.-- WDR IL-75-1: Drainage area.

GAGE.-- Water-stage recorder and phone telemeter. Datum of gage is 622.00 ft above sea level. Prior to July 23, 1970, nonrecording gage at same site and datum.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 22,900 ft³/s, Feb. 21, 1951, gage height, 20.90 ft, from rating curve extended above 8,200 ft³/s; maximum gage height, 28.16 ft, Apr. 12, 1994; minimum discharge, 2.0 ft³/s, Sept. 1, 2, 7, 1972, Oct. 8, 1994.

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 (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 is located 512 ft downstream of the the 1100 N Road bridge (which is 2.5 stream miles downstream of the gage), and continues downstream for 820 ft which includes the area next to the gaging station. The surface area sampled at reach A was 0.22 m².

BENTHIC MACROINVERTEBRATES
[sp., species; A, Adults; LV, Larvae; P, Pupae; X, present; -, not found]

PHYLUM
	Class
		Order
			(Suborder)
				Family					Reach A
					Subfamily				7/23/99
						(Tribe)
							Taxon	Life Stage	Quantitative	Qualitative

MOLLUSCA
	Bivalvia
							Corbiculacea		5	-
				Corbiculidae
							Corbicula sp.		-	X
ARTHROPODA
	Malacostraca
		Decapoda
				Cambaridae
							Cambarinae		-	X
	Insecta
		Ephemeroptera
			(Furcatergalia)
				Leptohyphidae
							Tricorythodes sp.	LV	88	X
			(Pisciforma)
				Baetidae
							Baetidae	LV	27	-
							Baetis intercalaris McDunnough	LV	131	X
			(Setisura)
				Heptageniidae
							Heptageniidae	LV	40	-
							Heptagenia sp.	LV	3	-
							Stenacron interpunctatum (Say)	LV	-	X
							Stenonema sp.	LV	24	X
							Stenonema exiguum Traver	LV	3	X
				Isonychiidae
							Isonychia sp.	LV	-	X
		Odonata
			(Zygoptera)
				Calopterygidae
							Hetaerina sp.	LV	-	X
				Coenagrionidae
							Argia sp.	LV	1	-
							Argia apicalis (Say)	LV	-	X
			(Anisoptera)
				Aeshnidae
							Boyeria vinosa (Say)	LV	-	X
		Hemiptera
			(Heteroptera)
				Corixidae
							Corixidae	LV	5	X
					Corixinae
						(Corixini)
							Palmacorixa sp.	A	-	X
							Trichocorixa sp.	A	-	X
				Gerridae
							Gerridae	LV	5	-
					Rhagodotarsinae
							Rheumatobates sp.	A	-	X
		Megaloptera
				Corydalidae
							Corydalidae	LV	3	-
				Sialidae
							Sialis sp.	LV	-	X
		Trichoptera
			(Spicipalpia)
				Glossosomatidae
				Hydroptilidae
					Hydroptilinae
							Hydroptila sp.	LV	3	-
							Hydroptila sp.	P	3	-
							Hydroptila perdita Morton	P	1	-
			(Annulipalpia)
				Hydropsychidae
							Hydropsychidae	LV	51	-
					Hydropsychinae
							Cheumatopsyche sp.	LV	-	X
							Hydropsyche rossi Flint, Voshell, and Parker/simulans Ross	LV	32	X
							Hydropsyche sp.	LV	85	X
			(Integripalpia)
				Limnephilidae
					Limnephilinae
							Pycnopsyche sp.	LV	3	-
				Leptoceridae
					Leptocerinae
							Nectopsyche candida (Hagen)/spiloma (Ross)	LV	-	X
							Oecetis sp.	LV	-	X
		Coleoptera
			(Polyphaga)
				Hydrophilidae
							Berosus sp.	A	-	X
				Elmidae
							Ancyronyx variegata (Germar)	A	3	X
							Ancyronyx variegata (Germar)	LV	3	-
							Dubiraphia minima Hilsenhoff	A	8	-
							Macronychus glabratus Say	A	21	X
							Macronychus glabratus Say	LV	200	X
							Stenelmis sp.	LV	-	X
							Stenelmis grossa Sanderson	A	51	X
		Diptera
			(Nematocera)
				Chironomidae
							Chironomidae	P	3	-
					Chironominae
							Chironominae	P	-	X
						(Chironomini)
							Chironomini	LV	-	X
							Cryptochironomus sp.	LV	-	X
							Paracladopelma sp.	LV	-	X
							Polypedilum sp.	LV	3	X
							Stenochironomus sp.	LV	3	-
							Xestochironomus sp.	LV	8	-
						(Tanytarsini)
							Cladotanytarsus sp.	LV	-	X
							Rheotanytarsus sp.	LV	5	-
							Tanytarsus sp.	LV	3	X
					Orthocladiinae
							Cricotopus/Orthocladius sp.	LV	3	-
							Cricotopus bicinctus group	LV	5	-
							Cricotopus sp.	LV	3	-
							Rheocricotopus sp.	LV	11	X
					Tanypodinae
							Tanypodinae	P	5	-
				Simuliidae
							Simuliidae	LV	-	X
			(Brachycera)
				Empididae
					Hemerodromiinae
							Hemerodromia sp.	LV	5	-
		Acari
							Hydrachnidia		8	-