The Kishwaukee River Basin : an inventory of the region's resources /

"A product of the Critical Trends Assessment Program (CTAP) and the Ecosystems Program of the Illinois Dept. of Natural Resources (DNR)"--P. [2] of cover.

The lower Rock River basin : an inventory of the region's resources /

"A project of the Critical Trends Assessment Program."

The Mackinaw River Basin : an inventory of the region's resources / [Susan L. Post].

"A product of the Critical Trends Assessment Program (CTAP) and the Ecosystems Program of the Illinois Dept. of Natural Resources (DNR)"--P. [2] of cover.

The Spoon River basin : an inventory of the region's resources 1998 /

"A product of the Critical Trends Assessment Program (CTAP) and the Ecosystems Program of the Illinois Department of Natural Resources (IDNR)--P. [2] of cover.

The upper Des Plaines River basin : an inventory of the region's resources /

"A project of the Critical Trends Assessment Program (CTAP and the Ecosystems Program of the Illinois Department of Natural Resources (IDNR)"--P. [2] of cover.

The Vermilion River basin : an inventory of the region's resources.

"A project of the Critical Trends Assessment Program."

Vermilion River (Illinois River Basin) area assessment.

The Critical Trends Assessment Program (CTAP) documents changes in ecological conditions.

Water quality management basin plan, phase I : Kankakee River Basin.

Prepared by Division of Water Pollution Control, Planning and Standards Section.

An assessment of the water quality of the Mississippi River Basin-north derived from a biological investigation /

"Prepared for the Illinois Environmental Protection Agency."

An assessment of the water quality of the Wabash River basin derived from a biological investigation /

"Prepared for the Illinois Environmental Protection Agency."

Report on an investigation of the pollution in the Upper Fox River Basin made during 1966 and early 1967.

"November 29, 1967."

The Corps, the environment, and the Upper Mississippi River Basin /

Mode of access: Internet.

Time of travel and dispersion study in the Androscoggin River Basin, Maine /

Bibliography: p. 47.

Economic analysis: Missouri River Basin project.

"For administrative use only."

Colorado River basin.

Mode of access: Internet.