BISMARCK, N.D. (AP) - North Dakota's State Health Council has ratified rules the panel approved a year ago to allow elevated levels of oilfield radioactive waste to be dumped at some landfills.
The 11-member panel voted to reapprove the rules Tuesday.
Environmental groups had alleged the August 2015 meeting was held illegally. Attorney General Wayne Stenehjem had issued an opinion in March saying the council violated state law by not providing adequate notice of the meeting.
The North Dakota Energy Industry Waste Coalition and the Dakota Resource Council also are suing in state court over the new rules. They want a judge to void the rules allowing certain landfills to accept waste with higher levels of radioactivity.