Dwr Cymru Welsh Water
Image of Cardiff WasteWater treatment works

As with drinking water, the importance of effective sewerage and wastewater treatment for public health and the environment means that our sewerage activities are highly regulated.

We have one of the longest coastlines of any water and sewerage company in the sector and so having high quality coastal water quality is especially important for the Welsh tourism industry which employs an average of 100,000 people and makes a significant contribution to the Welsh economy. Since 1995 we have invested over £1 billion on upgrading or building new wastewater treatment works right across our region which has helped Wales secure European blue flag awards.

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