The state transportation department has been fined $118,100 for its handling of hazardous waste at a maintenance facility in Juneau.
The penalty was levied by the U.S. Environmental Protection Agency.
The federal agency alleged that the transportation department failed to properly identify and label hazardous waste and stored more than 4,000 pounds of hazardous waste without a required storage permit.
The EPA said the waste included corrosive liquids, solvents and petroleum products.
Transportation department spokesman Jeremy Woodrow said department employees did not realize there was a compliance issue until it was pointed out during an inspection. He said the department took immediate action to remedy the situation.
Woodrow said there was no environmental damage.
Including this case, EPA said the transportation department has paid about $500,000 in EPA penalties since 2013.