The levels of sewage spills for Yorkshire Water for 2023, 516,386 hours, has more than doubled on the figures for 2022 which were 232,054 hours.

A [Yorkshire Water] spokesman said:”The weather experienced in the region in 2023 included a very wet summer and prolonged heavy rainfall towards the end of the year resulting in groundwater infiltration into the sewer network. Nevertheless, we know there is more to do, and we are making headway with a £180m programme to reduce discharges across the region by April 2025.”

​In response to the figures, a spokesperson for industry body Water UK said: “These results are unacceptable and demonstrate exactly why we urgently need regulatory approval to upgrade our system so it can better cope with the weather."

The water companies say they want to triple investment to £10bn over the period 2025-2030 to tackle the problem, which would be paid for through consumer bills.