Chatsworth culvert improvement project : town of Chatsworth, Livingston County, Illinois : small projects program.

"DOWR/SPR/91-001."

Citizen stream monitoring : a manual for Illinois /

"ILENR/RE-WR-90/18."

Coal report of Illinois.

Vols. for 188 -1893 include the annual reports of mine inspectors; 1894-1898 include the ... annual reports of the state inspectors of mines.

Commercial energy audits : the Illinois survey : attitudes and opinions from the Illinois business community /

"April 1985."

Comparison of inhalable particulate and total suspended particulate /

Project no. 90.029.

Conservation C.O.N.G.R.E.S.S. : Department of Conservation analysis of recommendations.

Cover title.

Current alternative energy research and development in Illinois.

At head of title, 1982-8 : Alternative energy.

Crossville Flood Control Project : village of Crossville, White County, Illinois : small projects program.

"DOWR/SPR/94-001."

Determination of summer distribution and habitat utilization of the Indiana bat (Myotis sodalis) in Illinois /

"Final report: project E-3."

Determination whether the causal agent for Mussel die-offs in the Mississippi River is of chemical or biological origin : final report /

"ILENR/RE-WR-90/09."

Depth and frequency of floods in Illinois /

Bibliography: p. 26.

Economic impact analysis of combined sewer overflow regulations on East St. Louis, R81-12 /

Project no. 80.264.

Economic impact study of proposed IPCB amendments to water pollution regulations, R80-6 /

Project no.: 80.235.

Economic impact of proposed water quality and effluent standard amendments for water in the Sangamon River Basin /

"November 1986."

Economic impact study of R81-11 trihalomethane standards for public water supplies /

"Project no. 80-254."