Investigation at Markham illegal dumping site : Markham, Cook County, Illinois.

"July 2010."

Investigation results fact sheet 1 : Van Tran Electric Site, Vandalia, Illinois.

"December 1993."

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.

Limnology of Cedar Lake, Lake County, Illinois : May-October, 1979.

Cover title.

Limnology of Johnson Sauk Trail Lake, Henry County, Illinois : June-October, 1979.

Cover title.

Limnology of Lincoln Trail Lake, Clark County, Illinois : May-October, 1979.

Cover title.

Limnology of Long Lake, Lake County, Illinois : May-October, 1979.

Cover title.

Limnology of Otter Lake, Macoupin County, Illinois : May-October, 1979.

Cover title.

Limnology of Lake Shabbona, De Kalb County, Illinois : May-October, 1979.

Cover title.

Limnology of Lake Taylorville, Christian County, Illinois : May-October, 1979.

Cover title.

Legislative staff internships with the Illinois General Assembly.

"A program of the Illinois Legislative Council, coordinated by Sangamon State University."

Limnology of Pittsfield City Lake, Pike County, Illinois : May-October, 1979.

Cover title.

Limnology of Round Lake, Lake County, Illinois : May-October, 1979.

On cover: Investigation of Illinois surface waters.

Manual of the procedures of the Illinois House of Representatives.

"November 1982."

Main report, environmental, economic, and social assessment of the Statewide Water Quality Management Plan : 208 Water Quality Management Planning Program /

"Prepared for the Illinois Institute of Natural Resources and the Illinois Environmental Protection Agency"--Cover