Who was it who said;   YOU CANNOT BE SERIOUS.   Well NRW that's who.

https://www.southwalesargus.co.uk/news/20136479.sewage-river-wye-just-algae-bacteria-say-nrw/ 

So there   Everything's perfectly fine.

Someone has to be right;  

https://www.theguardian.com/environment/2022/may/13/sewage-dumps-into-english-rivers-widespread-criminal-inquiry-suspects 

No New fish either/