A Tennessee-bound tanker filled with toxic waste leaked potentially dangerous material in Utah from a hose that had been repaired with duct tape.

The incident happened March 31, when a weigh-station employee noticed a wet stain on the back of the tanker, whose route originated at EnergySolutions Inc.'s facility in Tooele County. A Carbon County hazardous materials team found that up to a half-gallon of material had come from the broken and taped-over hose.

The tanker contained 3,000 gallons of waste solvent headed for a U.S. Energy Department incinerator. The material contained flammable, hazardous waste that is toxic to inhale for up to 300 feet from the exposure site. No injuries were reported.

The truck returned to Tooele County, and the hose was repaired before the shipment was sent to Tennessee.

"Crews inspected the area and found no contamination to the environment," said Mark Walker, a spokesman for EnergySolutions, the nation's largest radioactive-waste company. "No health or safety was compromised to residents of Carbon County or the environment."

Walker said the container with the duct-taped hose doesn't belong to the company.

Carbon County has cited the truck's driver, who works for a contractor for the Energy Department, said U.S. Rep. Jim Matheson, D-Utah. The county has billed EnergySolutions for the emergency response.

Dane Finerfrock, director of the Utah Division of Radiation Control, said the agency is investigating the incident to determine who is responsible and whether there were violations under his agency's jurisdiction.

"We're trying to get the facts," he said.

Finerfrock added that the amount of radioactive material in the shipment was "very minimal."

Jeff Gardner, who oversees operations at EnergySolutions' landfill, said the Energy Department contracts with the company to have some waste heat-treated. The treatment system separates radioactive waste, which is disposed of as a dry residue at the Tooele County landfill, from the solvent waste, which is shipped to a toxic incinerator operated by the Energy Department in Tennessee.