J.F. Lehman-backed NorthStar Group, an investment company, complted the acquisition of Trans Ash, a provider of coal ash services to utilities customers . Financial terms were not disclsoed. “With the acquisition of Trans Ash, NorthStar has assembled market leading capabilities across our three primary service offerings: Commercial and Industrial Deconstruction, Nuclear Decommissioning and Waste Management, and Coal Ash Remediation and Reuse. We are excited to capitalize on the opportunities that lie ahead – including over $3.5 billion of backlog – with our over 3,000 highly skilled and dedicated employees, fleet of modern equipment, industry-leading safety performance, and unique breadth and depth of capabilities,” Scott State, NorthStar CEO.