Ohio Rev. Code Ann. § 3734.124
(A) Promptly after issuing a periodic assessment under division (B) of section 3734.123 of the Revised Code, the director of environmental protection shall make a determination as to whether it is necessary or appropriate to continue the restrictions established in division (C) of section 3734.123 of the Revised Code during the period of time between the issuance of the assessment and the issuance of the next succeeding periodic assessment or as to whether it is necessary or appropriate to terminate the restrictions. The director shall consider all of the following when making a determination under this division:
(6) The findings of any review of relevant information concerning the following:
(B) Beginning three years after April 15, 1993, but only on and after the date of issuance as final actions of an assessment under division (B) of section 3734.123 of the Revised Code and a determination under division (A) of this section that it is necessary or appropriate to terminate the restrictions established in division (C) of section 3734.123 of the Revised Code, the director may do any of the following: