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 Air monitoring survey design for toxic air pollutants : final report /

"ILENR/RE-AQ-89/05."

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."

Currents from the Illinois State Water Survey.

Title from caption.

Geology, hydrogeology, and water quality of the karst regions of southwestern Illinois and Southeastern Missouri /

"33rd annual meeting, April 1999 North-Central section, Geological Society of America" --cover.

Fox River Watershed investigation : Stratton Dam to the Illinois River, phase II : hydrologic and water quality simulation models, part 1, methodology and procedure for development of HSPF models /

"May 2007"--T.p.

Fox River Watershed investigation : Stratton Dam to the Illinois River, Phase II : hydrologic models and water quality simulation models, part 2 : Blackberry and Poplar Creek HSPF models, calibration and initial simulation results /

"June 2007."

Fox River Watershed Investigation : Stratton Dam to the Illinois River : Phase II : Blackberry Creek and Poplar Creek hydrologic and water quality simulation models : executive summary.

"June 2007."

Fox River watershed investigation, Stratton Dam to the Illinois River : water quality issues and data report to the Fox River Study Group, Inc. /

CD-ROM includes corresponding database and GIS datasets.

Land pollution : strategies for emergency action : submitted to Illinois Institute for Environmental Quality /

Includes index.

Lake Michigan shore water survey : report to the Governor and General Assembly.

Description based on: 1971.

Survey of liquid waste management in Illinois : report /

"Project no. 40.027."

The Illinois state survey and plan for the construction of hospitals and medical facilities (P.L. 725 and P.L. 482) /

Description based on: 16th annual revision (1964)