A method for determining drainage areas, flow distances, and civil areas for water quality subsegments in Illinois /

Cover title.

A water quality information system in support of the state of Illinois standards review process /

Cover title.

Analysis of the sulfur content of Illinois streams, with emphasis on contributions from the atmosphere /

Cover title.

Analysis of water quality standards, Upper Sangamon Basin, Illinois /

Cover title.

Analysis of water quality : Rock River Basin in Illinois /

Cover title.

Analysis of water quality in the Galesburg Plain (McKee Creek, Lamoine River, Sugar Creek, Spoon River, and Kickapoo Creek), Illinois /

Bibliography: p. 30-1 to 30-4.

Analysis of water quality : upper Kaskaskia River Basin, Illinois /

Bibliography: p. 31-1-31-4.

Elements of a water quality information system for the State of Illinois /

Cover title.

Illinois energy efficient homes for the 80's.

On cover: Illinois solar 80/81/82.

Illinois GIS & mapnotes.

Mode of access: Internet.

Landscape waste facilities.

"ILENR/RR-92/08."

Management strategies for landscape waste : collection, composting, marketing.

"ILENR/RR-89/09."

Non-point source loading of nutrients in Illinois /

Bibliography: p. 30.

Relationships between concentration and discharge on selected Illinois streams /

Cover title.

Relationships between land-use and chemical quality of Illinois streams /

Cover title.