Have you checked the state of your local river on this interactive map yet?
If not, why not?
https://www.willcycle.com/2021/04/12/come-on-in-the-waters-fine/
#River #Pollution #Cycling #CycleTouring
@WilliamNB Looking at it again, orange square = treated sewage. Brown or white circle = sewer storm overflow. It's the latter which is more worrying for bathing for me, and sadly there's a *lot* of it locally. So don't swim when it's been raining :/
@WilliamNB I find it really hard to interpret. I *think* the only local result shows only *treated* effluent going into the river, and not untreated, but I'm not sure. And it's not easy to follow upstream and find all possible sources of contamination.