A cold storage company in Londonderry has settled with the Environmental Protection Agency for past Clean Air Act violations.
Londonderry Freezer Warehouse refrigerates some of its facilities with ammonia. Handled incorrectly, the chemical can be toxic, corrosive and flammable.
The EPA says the company's cold storage facility had rusty valves, shoddy ventilation and inadequate emergency controls.
The agency says the company has spent more than $215,000 to get into compliance with the Clean Air Act.
They'll pay the EPA an additional fine of nearly $80,000.