Ohio Rev. Code Ann. § 3750.06
(C) Except as provided in division (E) of this section, if any release described in division (A) or (B) of this section occurs, the owner or operator of the facility or vessel from which the release occurred shall immediately notify verbally, by telephone, radio, or in person, the community emergency coordinator of each emergency planning district that contains an area likely to be affected by the release, the fire department having jurisdiction where the release occurred, and the director of environmental protection or his designated representative . The verbal notification shall be given within thirty minutes after a person at the facility or aboard the vessel has knowledge of the release, unless notification within that time is impracticable under the circumstances. To the extent known at the time notice is given and that response to the release will not be delayed, the notice shall include all of the following information:
(D) As soon as practicable but not later than thirty days after the release, the owner or operator of a facility or vessel from which a release described in division (A) or (B) of this section occurred shall submit to the committee of the district in which the release occurred and to the director or his designated representative a written, follow-up emergency notice of the release setting forth and updating the information provided in the verbal notice given under division (C) of this section and including all of the following additional information: