Industrial Solid Waste (ISW) landfills are regulated under Ohio Administrative Code (OAC) Chapter 3745-29. Licensing requirements are addressed under OAC Chapter 3745-37. These rules are adopted pursuant to Ohio Revised Code (ORC) Chapter 3734.
ISW landfills can accept industrial solid waste as well as exempt waste (e.g. spent nontoxic foundry sand, nontoxic fly ash and bottom ash, construction and demolition debris). Industrial solid waste is a type of solid waste generated by manufacturing or industrial operations. ISW landfills cannot accept municipal solid waste, hazardous waste, regulated PCB wastes, bulk liquids or wastes containing free liquids, infectious waste, scrap tires, or yard waste. An ISW landfill can accept regulated asbestos-containing materials if a NESHAP air permit has been granted.
ISW landfills are required to meet design, siting, operating, closure, and post closure requirements. Siting criteria provide for protection of ground water and drinking water wells, as well as setbacks from parks, surface waters, property lines, and domiciles. There are design standards for the composite liner system (consisting of recompacted soil overlain by a flexible membrane liner), a leachate management system (designed to limit the level of leachate on the liner system to one foot), a multilayer cap system, and surface water management. To accommodate advances in technology, the rules allow alternative materials and thicknesses. Every 10 years the facility undergoes a review of the landfill design to demonstrate it is consistent with current design standards.
Operating requirements include keeping records of waste loads accepted and rejected; activities at the working face, including the application of daily and intermediate cover; proper management of surface water and leachate; and prevention of nuisances or health hazards (e.g. managing noise, dust, odors, insects and rodents). The operator is also required to monitor the ground water for potential contamination.
After an ISW landfill is closed, the facility is maintained and monitored for at least 30 years. Financial assurance is required. If at any time someone desires to disturb the landfill (e.g. build a road, install utility lines, put in ball fields), the director must first give his authorization to do so.