Ohio Rev. Code Ann. § 1521.23
(B) Prior to developing a new or increased withdrawal or consumptive use capacity that would facilitate a withdrawal requiring a permit under section 1521.29 of the Revised Code, an owner or operator of a facility shall submit an application for a permit to the chief on a form the chief prescribes. The applicant shall declare and document all of the following in the application:
(E) A public water system, as defined in section 6109.01 of the Revised Code, that withdraws waters of the state in an amount that would result in a new or increased consumptive use of more than two million gallons per day need not obtain a permit under section 1521.29 of the Revised Code if one of the following applies: