Directory of solar energy equipment manufacturers and solar energy architects and engineers.

Mode of access: Internet.

Downstate public transportation operating assistance program / Illinois Department of Transportation.

Mode of access: Internet.

Economic impact study of proposed site specific changes to water pollution regulations affecting the city of Tuscola, Douglas County, Illinois : final report /

Contract: EA 44.

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

"November 1986."

Economic impact study of proposed regulation R82-7 for site-specific water pollution rules applicable to the city of Alton, Illinois /

Bibliography: p. R-1 to R-3.

Economic impact study of proposed IPCB regulation sections 215.240 and 215.207 : final report /

"Printed: June 1987."

Emission reduction banking experience in the United States and its applicability to Illinois /

Project no. 83/7011.

Environmental assessment, Hickory/Spring Creek flood control project : report to the Illinois Department of Transportation, Division of Water Resources /

Includes bibliography.

Energy conservation and utilization : a handbook for wastewater treatment plants in Illinois /

"September 1991."

Evaluation of underground injection of industrial waste in Illinois /

Published cooperatively by the Department of Energy and Natural Resources, Illinois State Geological Survey, Illinois State Water Survey, and Hazardous Waste Research and Information Center.

Erosion and sedimentation in the Illinois River Basin : final report /

"Printed: June 1992."

Evaluation of catch-and-release, hook-and-line vulnerability and heredity of vulnerability of a largemouth bass population : final report /

"Federal aid project F-27-R, U.S. Fish and Wildlife Service."

Evaluation of the use of rubber modified asphalt concrete pavement in the State of Illinois /

"ILENR/RR-93/02."

FFE-2 : participation of the Illinois Department of Nuclear Safety in the Federal Radiological Emergency Response Plan Field Exercise of June 1987 /

Cover title.

Evaluation of current underground injection of industrial waste in Illinois : final draft report /

"HWRIC RR 008." -- Cover.