Guidance: Using unbound incinerator bottom ash aggregate in construction: RPS 325
The Environment Agency has updated its regulatory position statement on the use of unbound incinerator bottom ash aggregate (IBAA) in construction. The guidance confirms that an environmental permit is still legally required for relevant waste and groundwater activities, but enforcement action is unlikely if the RPS conditions are met. The update also clarifies restrictions on use beneath residential buildings and gardens, and removes a previous distance-based condition relating to watercourses.
