Texas official raises numerous questions about Ohio train derailment wastewater sent to her county

Toxic wastewater used to extinguish a fire following a train derailment in Ohio has been transported to a Houston suburb for disposal, according to a county official in Texas who said there are outstanding questions about the transportation and disposal of the material.

Harris County Judge Lina Hidalgo said at a press conference Thursday that 500,000 gallons of the wastewater had been delivered to Deer Park, Texas, which expects another 1.5 million gallons.

"I know that our community was taken aback by the news just as I was," Hidalgo said. "I also want folks to know there are many things we don't know that we should know. That doesn't mean that something is wrong. And I want to stress that point."