Washington County — Marietta, Beverly, and Waterford — carried the Ohio River chemical plants and the Muskingum River generating station, where chemical processing and coal-fired power reportedly ran on asbestos-containing materials throughout their operating lives.

Ohio asbestos cases are filed in the Court of Common Pleas of the county of proper venue — there is no single statewide asbestos court, though Cuyahoga County (Cleveland) has historically carried Ohio’s largest asbestos docket. Ohio allows two years from a mesothelioma or asbestos-cancer diagnosis to file (Ohio Rev. Code § 2305.10), and two years from the date of death for a wrongful-death claim (§ 2125.02).