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 models and water quality simulation models, part 2 : Blackberry and Poplar Creek HSPF models, calibration and initial simulation results /

"June 2007."

Guidelines and forms for inspection of Illinois dams.

Cover title.

Handbook for surveyors 1986-1990 : a project of the state & national Audubon chapters and birding organizations of Illinois and the Illinois Department of Conservation.

Cover title.

Hydrogeologic evaluation of sand and gravel aquifers for municipal groundwater supplies in East-Central Illinois /

"Prepared in cooperation with the Illinois Department of Transportation. Division of Water Resources."

Illinois' agricultural water quality management programs : a status report : conference proceedings of April 13, 1982 at Department of Agriculture Auditorium, State Fairgrounds, Springfield, Illinois.

"June 1982."

Management of small lakes and ponds in Illinois.

"Revised 1989."

Magnitude and frequency of floods in Illinois,

Bibliography: p. 594.

Management and program audit of the Illinois State Police's Division of Forensic Services.

"The audit was conducted pursuant to Illinois House of Representatives Resolution Number 451, which was adopted June 20, 2007."--Cover letter.

Mouth of the Mahomet Regional Groundwater Model, Imperial Valley Region of Mason, Tazewell, and Logan Counties, Illinois /

"December 20, 1994."

Phase I diagnostic / feasibility study of Channel Lake and Lake Catherine, Lake County, Illinois /

"December 27, 2000."

Rare and endangered fish of Illinois /

Mode of access: Internet.

Review of the City of Lake Forest, final report for the 1994 Beach and Nearshore Monitoring Program, Forest Park Beach, Lake Forest, Illinois /

"Final Report for IDOT Project No.: WR-09118/SRA-190"

The identification of the nonnative fishes inhabiting Illinois waters / Lawrence M. Page and Christopher A. Laird.

"Prepared by Center for Biodiversity, Illinois Natural History Survey."

The Influences of land uses and stream modifications on water quality in the streams of the Court Creek Watershed /

"Contract WR 22."