Great Bend Fire/EMSFirefighters made six ambulance runs Thursday, four Friday, one Saturday and six Sunday.Burned toast set off a fire alarm at 10:29 a.m. Thursday at 2200 Lincoln St.A carbon monoxide detector was activated at 9:50 a.m. Friday at 2219 Van Buren. CO concentration is measured in parts per million (ppm). Firefighters checked the entire house and found 1 ppm of CO inside the residence.