WHEATON, Ill. (AP) — A northern Illinois elementary school bus driver has been charged with driving drunk while on duty.

Forty-two-year-old Jill Beebe of South Elgin was arrested Friday while working her route in West Chicago after a school employee reported that she thought she smelled alcohol on the driver’s breath.

READ MORE: West Town Area Neighbors Band Together To Catch Man Suspected In Years' Worth Of Package Thefts

The DuPage County State’s Attorney’s Office says West Chicago police officers administered field sobriety tests.

Beebe was charged with one count of aggravated driving while under the influence. She could get up to three years in prison if found guilty.

READ MORE: Small Plane Ends Up On Grass At Midway Airport

A judge set bond at $100,000.

State’s Attorney Robert Berlin says the idea that a school bus driver might have gotten behind the wheel drunk “is unconscionable.”

Beebe does not have a listed telephone number and could not be reached for comment.

MORE NEWS: Someone Stole More Than $500 From Her Chime Account, But Bank Wouldn't Reimburse Her Until CBS 2 Got Involved

(TM and © Copyright 2013 The Associated Press. All Rights Reserved. This material may not be published, broadcast, rewritten or redistributed.)