The director of environmental protection may on the director's own initiative investigate or make inquiries into any suspected violation of section 6109.31 of the Revised Code.
The attorney general, upon written request by the director, shall bring an action for injunction or other appropriate civil action or criminal prosecution against any person violating or threatening to violate that section. In an action for injunction to enforce any final order of the director, the finding by the director, after hearing, is prima-facie evidence of the facts found therein.