RALEIGH -

North Carolina regulators have issued notice to Duke Energy that the company will be cited for environmental violations related to a massive coal ash spill that coated 70 miles of the Dan River with toxic sludge.
    
The state Department of Environment and Natural Resources said Friday that the two notices relate to separate violations of wastewater and storm-water regulations. The agency could levy fines against Duke for the violations, but the amount has not yet been determined.
    
The spill began Feb. 2 when an old pipe under a 27-acre coal ash dump at a Duke power plant in Eden collapsed. It took the company nearly a week to fully plug the leak. Public health officials have advised people to avoid contact with the river water and to not eat fish.