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

"October, 1981."

Clean lakes strategy for Illinois.

Prepared by Donna F. Sefton.

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 II project : report for Lake Le-Aqua-Na, Stephenson County, Illinois /

"October, 1990."

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.

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

Cover title.

Diagnostic - feasibility study Baumann Park Lake, Winnebago County, Illinois /

"The diagnostic-feasibility study of Baumann Park Lake was provided by Conservation 2000 funds through the Illinois Environmental Protection Agency."

Guidance manual for petroleum-related LUST cleanups in Illinois /

"Spring 1990."

Illinois water quality report /

Mode of access: Internet.

Illinois water quality report.

Latest issue consulted: 2002.

Illinois water data catalog report /

"IEPA/WPC/85-007."-- Cover.

Investigations of six intermittent streams : (Solomon Creek, Otter Creek, Blue Creek, Kaskaskia Ditch, Steward Creek, and Brushy Creek) : April-September 1980.

"February, 1981."

Lake water quality assessment program : northeastern Illinois lakes /

"The Northeastern Illinois Planning Commission's Natural Resources Dept. conducted the lake assessment data collection effort for the six county northeastern Illinois region." -- P. iii.

Lake water quality assessment program, 1993 : northeastern Illinois lakes /

"January 1995."