Des Moines Register: A Des Moines contractor will pay about $125,000 after federal investigators accused the company of misclassifying workers and failing to pay them overtime. In a settlement with the U.S. Department of Labor, AJ Plumbing agreed to pay $106,000 to 34 workers who allegedly received less pay than a federal minimum standard. The settlement comes three weeks after the company agreed to pay workers $19,000 for failing to follow the federal overtime law.