Trash went uncollected in Waterville on Monday because it wasn’t in a designated city trash bag required by the city’s pay-to-throw rubbish collection system.

A notice was left on a curbside trash barrel on Ticonic Street that was not emptied because the garbage was not in an official Waterville trash bag.

A city bag awaits pickup along Johnson Heights in Waterville on Monday. The new pay-as-you-throw trash collection system requires residents to use city bags.

Garbage that was not properly bagged was left behind after city trash crews finished their work on Edwards Street in Waterville Monday. Residents are required to buy special city bags for their garbage.

Trash bags line the sidewalk along Edwards Street in Waterville on Monday as the pay-as-you-throw trash collection system started.