Ohio Rev. Code Ann. § 6105.13

Whenever any person or governmental agency plans to construct or alter any dam, reservoir, or storage basin, for the purpose of storing, conserving, or diverting water, or plans to drill, bore, or dig, a well or wells to provide water for a public water supply, within the territorial boundaries of a watershed district, such person or agency shall, before such construction or alteration or the drilling, boring, or digging of such well is authorized, notify the board of directors of the watershed district, in writing, of such plans. Such notice shall briefly describe such plan, its location, and the purpose for which it is intended.