Negotiations between Republic and Teamsters Local 25 union have stalled over wages, benefits, working conditions, and paid time off, according the union.

If no agreement is reached by Tuesday, service disruptions could begin as early as this week in 16 towns where Republic Services handles waste collection.

Teamsters Local 25 represents about 450 workers that service over a dozen municipal contracts. The union has threatened to extend the strike to other parts of the country if the two sides cannot come to terms.