@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.

@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 :/

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