Assessment and classification of Illinois lakes /

"Staff report."

Biological Stream Characterization (BSC) : a biological assessment of Illinois stream quality /

"IEPA/WPC/89-275"--Cover.

Biological and water quality survey of three tributaries to the Sangamon River : South Fork basin, Mosquito Creek and Long Point Slough, September thru November, 1989 : Staff Report /

"May 1991."

Biology of ginseng (panax quinquefolium in Illinois /

On cover: Biology of ginseng in Illinois.

Chemical analysis of surficial sediments from 63 Illinois lakes : summer 1979 /

On cover: Investigations of Illinois surface waters.

Centreville culvert replacement project : city of Centreville, St. Clair County, Illinois : small projects program.

"April 1997."

City of Sycamore flood control project (Martin's Ditch Reservoir) : Small Projects Program : city of Sycamore, DeKalb County, Illinois.

Cover title.

Clean Water Act section 303(d) list : Illinois submittal for 1998.

"The purpose of this report is to fulfill the requirements set forth in Section 303(d) of the Federal Clean Water Act (CWA) and the Water Quality Planning and Management regulation at 40 CFR Part 130."--P. 1.

City of Sycamore flood control project (Bethany Road Detention Pond) : Small Projects Program : city of Sycamore, DeKalb County, Illinois.

"OWR/SPR/01-001"

Clean Lakes Program phase I diagnostic / feasibility study of Douglas Park Lagoon, Garfield Park Lagoon, Lincoln Park North Pond, Washington Park Lagoon : Chicago Park District, Cook County, Illinois /

"This report was financed in part by a grant from the U.S. Environmental Protection Agency under section 314 of the Clean Water Act."

Data collection methods and summaries for the assessment of stream water quality in the Vermilion River Basin (Wabash River), 2001 /

Cover title.

Effects of livestock wastes on small Illinois streams : Lower Kaskaskia River Basin and Upper Little Wabash River Basin : summer 1991 /

"July 1992."

Educational materials and programs : IDNR Division of Education.

"11/08"--Colophon.

Evaluation of Illinois sieved stream sediment data, 1982-1995 : staff report /

At head of cover title: Illinois Environmental Protection Agency, Bureau of Land.

Evaluation of Illinois stream sediment data, 1974-1980 /

"IEPA/WPC/84-004."-- Cover.