Ohio Rev. Code § 4909.35
If the legislative authority of any municipal corporation fails to regulate, within sixty days after the expiration of any lawful rate, by ordinance, the rates to be charged by any public utility engaged in the business of supplying water for public or private consumption, such water company or one per cent of the qualified electors of such municipal corporation may petition the public utilities commission to fix the just and reasonable rates for the furnishing of such services, and the commission may thereupon proceed to fix the just and reasonable rates, tolls, and charges for such services which may be charged for two years from the date of the filing of such petition and thereafter until changed, altered, or modified by the legislative authority of such municipal corporation or further order of the commission upon like application.
R.C. § 4909.35