An intensive survey of Shawnee National Forest region streams of southern Illinois, 1986-1987 /

"IEPA/WPC/90-171."--Cover.

An intensive survey of the Eagle Creek Basin, Saline and Gallatin Counties, Illinois : 1986-1987 /

"March 1988."--Cover.

An intensive survey of the Sugar Creek Basin, Crawford County, Illinois, 1986 /

"IEPA/WPC/88-030."--Cover.

An intensive survey of the Bay Creek Watershed, July 1992 /

"IEPA/WPC/95-020"--Cover.

An Intensive survey of the DesPlaines River Basin from the Wisconsin state line to Joliet, Illinois, 1983-1984 : staff report /

"February 1988"--Cover.

An intensive survey of the Edwards River and Pope Creek, 1991 /

"October 1993."--Cover.

An intensive survey of the Fox River Basin from the Wisconsin State line to Ottawa, Illinois, 1982 /

Survey made cooperatively by the Illinois Environmental Protection Agency and the Illinois Dept. of Conservation.

An intensive survey of the Little Wabash River Basin, Summer 1989 /

"IEPA/WPC/92-053."--Cover.

An intensive survey of Illinois River and its tributaries : a comparison study of 1967 and 1978 stream conditions /

Chiefly tables.

Analysis of septic tank distribution and septage generation rates in Illinois /

"IEPA/WPC/84-003."

An inventory of growth and resource conservation activity in Illinois /

Includes bibliographical references.

Annual summary of water quality and biological investigations in Lake Shelbyville Basin.

"Annual report submitted to the U.S. Army Corps of Engineers, St. Louis District, St. Louis, Missouri."

Assessment and classification of Illinois lakes /

"Staff report."

Biological Stream Characterization (BSC) : a biological assessment of Illinois stream quality /

"IEPA/WPC/89-275"--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."