Judge: TVA Negligent, Responsible for Massive Spill

U.S. District Court Judge Thomas Varlan ruled on Thursday that the Tennessee Valley Authority was responsible for a massive coal ash spill at its Kingston facility in 2008. He said the TVA should have investigated and remedied problems at the site prior to the "catastrophic failure." Total cleanup costs, which are ongoing, are estimated to exceed $1 billion. Varlan said in a written opinion that the TVA was negligent in its conduct and will be liable for damages that will have to be proven in the next phase of the ongoing lawsuits. Related litigation involves more than 60 cases and more than 800 plaintiffs. ABC News has more