The U.S. Environmental Protection Agency (EPA) is taking over the disposal of toxic waste from Norfolk Southern, the train operator at the center of a train derailment in the U.S. state of Ohio.

The EPA says the toxic waste will be properly transported, with liquid waste heading to a site about 130 miles (210 km) away, to be dumped into an underground injection well.

Some solid waste, about 280 tons, has already been hauled away, but at least five truckloads were sent back to the city of East Palestine.Hazardous and toxic waste disposal is dangerous work and requires EPA certification. 

At least two sites have refused to take waste from the derailment.Over 100,000 gallons (378,000 liters) of liquid waste are being stored near the crash site. The cleanup process creates more contaminated waste that needs to be properly disposed of.

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