Question to the Department for Environment, Food and Rural Affairs:

To ask the Secretary of State for Environment, Food and Rural Affairs, what assessment he has made of the potential impact of the use of unbound incinerator bottom ash aggregate in construction on the environment in (a) the Fenlands and (b) other low-lying areas.

In England the Environment Agency’s regulatory position statement RPS 247 , first published in January 2021, sets out risk-based conditions which restrict the use of unbound incinerator bottom ash aggregate (IBAA) as a replacement for primary aggregate based on tonnage, location, placement, and type of construction project. The Environment Agency is satisfied that in complying with the regulatory position statement, the risks to ground and surface water are understood and proportionately managed.