How safe is water from a well?

John Conlin / 25 May 2018

A reader wonders whether the well water at their holiday home in Wales is safe to drink.


We, our parents and our adult children have clubbed together to buy a holiday cottage in Wales. It is remote and only has mains electricity. I am worried that the water from the well may not be safe. What precautions can we take?


Boiling the water is an obvious option but for more realistic quantities an ultra violet (UV) sterilizer will deal with bacteria but will still leave you with minerals (in parts of Wales compounds of lead are prevalent in ground water) and particulates picked up by the water as it soaks through the soil and rock. The addition of a reverse osmosis filter will provide safe drinking, cooking and personal washing water.

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