An intensive survey of the Skokie River (Segment A-01 of the Des Plaines River Basin), April-December, 1978 /

Bibliography: p. 66-67.

An intensive survey of the Kishwaukee River and its tributaries, 1983.

"IEPA/WPC/88-009."

An intensive survey of the Saline River Basin, summer 1993 /

"The 1993 Intensive Survey of the Saline River Basin was developed in conjunction with the Illinois Cooperative Intensive Basin Survey Program jointly conducted by IEPA and the Illinois Department of Conservation."

An intensive survey of the Vermilion River basin, 1985-1986 /

"October 1989."--Cover.

An intensive survey of the American Bottoms Basin, 1984 / by Merrill R. Matson.

"June 1989."

An intensive survey of the Mackinaw River Basin, 1994 : staff report /

"December 1996"--Cover.

An intensive survey of the Cache River Basin, data summary : summer 1999 /

"IEPA/BOW/02-021."--Cover.

An Issues/options paper for comprehensive water quality standards for groundwater /

"December 1988."--Cover.

Annual developmental disabilities state plan : fiscal year /

Cover title.

Annual program performance report : federal fiscal year /

Description based on: 1994.

Annual air quality report.

Mode of access: Internet.

Annual report /

Cover title.

Annual report /

Title from cover.

Annual report /

Description based on: 1985; title from cover.

Annual report /

Description based on: 1987; title from cover.