Yes, thank you, Mike Hedges. As Mike Hedges will know, we've got a very good overflow scheme, which is a natural solution in his constituency, I think it is, at the top, which benefits my constituency. And that's a very good example of catchment area approaches, because obviously the river flows through a large number of different areas of Wales. It's very important therefore to make sure that we have sustainable nature-based solutions to divert, as he says, as much surface water as possible away from the sewerage systems in the first place to avoid the overflow that he speaks of.

We've taken a number of steps to tackle discharges from overflows. This includes making sustainable drainage systems, or SuDS, mandatory on almost all new building developments. The purpose of this is to relieve pressure on the network by redirecting and slowing down the speed at which such surface water enters the sewage system and it will help ensure that our storm overflows are used only as a very last resort.

As we speak, the water companies are preparing drainage and waste water management plans, which will be published for public consultation at the beginning of next year. The plans will provide a mechanism for water companies, local authorities and landowners to work together to develop a resilient and affordable waste water network to identify evidence-based priorities for investment.

I have had a number of meetings with Dŵr Cymru Welsh Water. I understand that they have investigated high-spilling combined overflows in the River Tawe as part of their storm overflow assessment framework investigations. Natural Resources Wales is working with the water companies to ensure investment is targeted appropriately. They also ensure that using nature-based solutions, which will reduce discharges from overflows and deliver wider environmental and social benefits, are taken into account when planning the network.