A biological and water quality survey of Sugar Creek and tributaries, Crawford County, Illinois, August-September, 1992 /

"IEPA/WPC/93-063."--Cover.

Biological and water quality survey of the Carroll Creek Watershed, Carroll County, Illinois, 1987-1988.

"IEPA/WPC/89-163."--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."

Biological and water quality survey of the Vermilion River Vermilion County, Illinois, 1994 /

"May 1995."

Geology, hydrogeology, and water quality of the karst regions of southwestern Illinois and Southeastern Missouri /

"33rd annual meeting, April 1999 North-Central section, Geological Society of America" --cover.

Fox River Watershed investigation : Stratton Dam to the Illinois River, phase II : hydrologic and water quality simulation models, part 1, methodology and procedure for development of HSPF models /

"May 2007"--T.p.

Fox River Watershed investigation : Stratton Dam to the Illinois River, Phase II : hydrologic models and water quality simulation models, part 2 : Blackberry and Poplar Creek HSPF models, calibration and initial simulation results /

"June 2007."

Fox River Watershed Investigation : Stratton Dam to the Illinois River : Phase II : Blackberry Creek and Poplar Creek hydrologic and water quality simulation models : executive summary.

"June 2007."

Illinois Conference on Soil Conservation and Water Quality : conference proceedings of November 9-10, 1983 at Holiday Inn East, Springfield, Illinois /

Includes bibliographical references.

Information and guidelines for formation/construction of area secondary/post-secondary vocational education school facilities : opportunities under the Vocational Education Act of 1963.

Mode of access: Internet.

Solar energy information and data for Illinois /

Cover title.

Stalking Threat Assessment Reaction Team (S.T.A.R.T) : information and advice on stalking and threats to public officials.

"April 2001"--Colophon.

The effects of hydrologic modifications on aquatic biota, stream hydrology and water quality : a literature review /

"IEPA/WPC/84-001."-- Cover.

The siting puzzle : piecing together economic development and environmental quality : proceedings of the Thirteenth Annual ENR Conference, September 13 and 14, 1984, Chicago, Illinois.

"January 1985."

Canada, as it is : comprising details relating to the domestic policy, commerce and agriculture, of the Upper and Lower Provinces : comprising matters of general information and interest, especially intended for the use of settlers and emmigrants /

Reproduction of original in: Public Archives of Canada. Library.