Blue Creek watershed project : Pike County, Illinois, May, 1979-October, 1980 /

"October, 1981."

Blue Creek watershed project : executive summary and recommendations /

IEPA/WPC/84-008.

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

On cover: Investigations of Illinois surface waters.

Clean lakes strategy for Illinois.

Prepared by Donna F. Sefton.

Clean air newsletter.

Description based on: September, 1991; title from caption.

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.

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."

Cleaning Illinois : status of the state's hazardous waste cleanup programs.

"Spring 1988."

Cleaning Illinois : status of the state's hazardous waste cleanup programs.

"Spring 1986."

Clean Lakes Program phase II project : report for Lake Le-Aqua-Na, Stephenson County, Illinois /

"October, 1990."

Companies that generate, treat, dispose or recover hazardous waste : ... annual report /

Includes both companies that generate hazardous waste & ship it off-site for management and companies that generate & manage on-site and companies that manage hazardous waste received from off-site.

Companies that treat, store, and dispose of hazardous waste : ... annual report /

Vol. for <1985> includes booklet for the Illinois Environmental Protection Agency hazardous waste treatment, storage, and disposal facility annual report forms and instructions for completing the annual hazardous waste report.

Comparative evaluation of gross erosion assessment techniques used in the Blue Creek Watershed /

Bibliography: p. 25.

Companies that generate hazardous waste and ship it off site : ... annual report /

Description based on: 1985; title from cover.

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

Cover title.