Ohio Rev. Code Ann. § 1521.35
(A) An owner of real property that is located within the geographic area established under section 1521.28 of the Revised Code with respect to a permit issued under section 1521.29 of the Revised Code may submit a written complaint to the permittee or to the chief of the division of water resources informing the permittee or the chief that there is a diminution or interruption of the owner's water supply if both of the following apply: