Ohio Rev. Code § 3753.07
The director of environmental protection or the director's authorized representative, upon proper identification and upon stating the purpose and necessity of an inspection, may enter at reasonable times upon any private or public property, real or personal, to inspect, investigate, obtain samples, and examine and copy records to determine compliance with this chapter and rules adopted or orders issued under it. The director or the director's authorized representative may apply for, and any judge of a court of record may issue for use within the court's territorial jurisdiction, an administrative inspection warrant under division (F) of section 2933.21 of the Revised Code or other appropriate search warrant necessary to achieve the purposes of this chapter and rules adopted or orders issued under it.
R.C. §3753.07