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Key Info

Risk assessment
Water testing
System repair and maintenance
Water Treatment

Private Water Supply Risk Assessment

FWT can help and guide you through the risk assessments required if you own a private water supply.

If the house you and your family live in is the only property supplied by a water source, and only your family drink the water, a risk assessment is not normally required although you still have a duty of care to any one using the water. If the supply is being used by a company/ business or is a shared supply then a risk assessment will be required by the local authority.

Risk assessment is a condition check control document for your private water supply. It means looking at the source of the supply and the surrounding area to see what could go wrong with it and contaminate the supply.

It also involves checking the storage tanks, any treatment systems and the pipe work. While sampling can suggest what impurities may occur, risk assessment sets out to identify the actual or potential causes so that suitable actions can be taken to sort them out and therefore prevent the situation from getting worse or even starting in the first place.

Risk assessment will bring benefits such as a better knowledge of your private water supply system and improved drinking water quality for you, your family and visitors to your home or business.

What happens next?

Improvements might be required at the source itself, or to the pipes or fittings inside or outside your home. For example:

  • Repairing the system to prevent dirty water, animals or their droppings entering the water e.g. by sealing the roof slabs on collection chambers, fencing around the source and digging a drainage ditch to stop surface water or water just below the surface entering the supply.
  • Installing and maintaining an appropriate water treatment system to ensure satisfactory microbiological and chemical quality and where required, water filters (to remove iron, nitrates, manganese etc) to bring the supply in line with the potable water standard.

How do I start?

Make sure you know where your water comes from and how it reaches your tap. Knowing this can help you understand what could cause a problem.

  • Clarify who is responsible for maintenance of the supply. Contact the owners of the land where the source is, and discuss your supply with them, and where the source, tank(s) and pipe work are.
  • Clarify who is responsible for the whole supply system including water treatment equipment and that it is maintained according to manufacturer’s instructions. A service record/ log will need to be kept to prove this and would normally include a minimum of the following:
  • Water sample test for Bacteria (annually)
  • Water sample test for Chemicals (dependant on supply)
  • Water filter change date
  • Ultraviolet lamp check dates (daily/weekly)
  • Ultraviolet lamp replacement dates (annually)
  • Water usage (if applicable)
  • System check

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