Question to the Department for Transport:

To ask the Secretary of State for Transport, what estimate her Department has made of the level of financial liability and mitigation costs required for Network Rail to meet its 2030 target under its Environmental Sustainability Strategy; and how much and what proportion of this funding is allocated toward the remediation of historic pollution sites along the rail lineside.

The Department for Transport has indicated that it will not be possible to answer this question within the usual time period. An answer is being prepared and will be provided as soon as it is available.