By Katherine Hamilton
Casella Waste Systems appointed Damian Ribar as chief operating officer.
Ribar will start the role on July 20, the waste management company said Wednesday.
Ribar has been working at Waste Connections, where he served as division vice president of North Florida. He has more than 30 years of experience in the solid waste industry.
As part of the leadership change, Shelley Sayward has been promoted to executive vice president and general counsel from senior vice president and general counsel.
Write to Katherine Hamilton at katherine.hamilton@wsj.com