Dennis P. McKenna

• Quaternary records of central and northern Illinois
• Agricultural chemicals in rural, private water wells in Illinois
• Agricultural chemicals in rural, private water wells in Illinois
• An Initial evaluation of the impact of pesticides on groundwater in Illinois
• Environmental impacts of oil field brines in Southeastern Clay County, Illinois
• Persistence and mobility of selected pesticides in loessial soils of Illinois
• Potential for agricultural chemical contamination of aquifers in Illinois