Wales’ largest water company Welsh Water has seen its environmental rating downgraded for the second consecutive year following a rise in sewage spills. Natural Resources Wales (NRW) has reduced the company’s rating from three stars to two stars.
It said Welsh Water now “requires improvement” after a further decline in the company’s environmental performance outlined in NRW’s annual review.
In 2022, Welsh Water caused 91 sewage pollution incidents - up 9% from 2021. Five of these incidents were classed as “having a high or significant impact”.