Reply To: Nitrates and Phosphates pollution

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Bear in mind that we tested the water coming out of the sewage pipe, not the river water. There is a lot of info available, and can be quite confusing:

This is a NRW report –

UK Government guidance recommends that rivers should not exceed annual mean phosphate concentrations of 0.1mg per litre.

The UK drinking water standard requires the nitrate concentration to be less than 50 parts per million.,common%20problem%20for%20private%20water%20supplies%20%28water%20wells%29. NRW has much ino too:

In the US recommendations officially state the limit for nitrates at 10 mg/L.  Nitrates in Water? Safe Levels and How to Remove it – Pick: Comfort

Hope that helps


  • This reply was modified 1 year, 6 months ago by NDCrisp.