In the Levelling-up and Regeneration Bill we address pollution at source by placing a new statutory duty on water companies in designated catchment areas to upgrade wastewater treatment works by 2030. Interestingly enough, the analysis suggests that this will lead to about a 69% reduction in phosphorus loads and around a 57% reduction in nitrogen loads in total from wastewater treatment works across all the affected catchments, reducing a significant source of nutrient pollution and supporting the recovery of habitat sites most affected by this pollution. This is on top of the much wider improvements being driven forward through our plan for water.